WO2022045637A1 - 항종양 세균 균주, 및 이를 이용한 조성물 및 방법 - Google Patents
항종양 세균 균주, 및 이를 이용한 조성물 및 방법 Download PDFInfo
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- WO2022045637A1 WO2022045637A1 PCT/KR2021/010525 KR2021010525W WO2022045637A1 WO 2022045637 A1 WO2022045637 A1 WO 2022045637A1 KR 2021010525 W KR2021010525 W KR 2021010525W WO 2022045637 A1 WO2022045637 A1 WO 2022045637A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/135—Bacteria or derivatives thereof, e.g. probiotics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/66—Microorganisms or materials therefrom
- A61K35/74—Bacteria
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/66—Microorganisms or materials therefrom
- A61K35/74—Bacteria
- A61K35/741—Probiotics
- A61K35/744—Lactic acid bacteria, e.g. enterococci, pediococci, lactococci, streptococci or leuconostocs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
- C07K16/2803—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the immunoglobulin superfamily
- C07K16/2818—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the immunoglobulin superfamily against CD28 or CD152
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
- C07K16/2803—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the immunoglobulin superfamily
- C07K16/2827—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the immunoglobulin superfamily against B7 molecules, e.g. CD80, CD86
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
- C12N1/205—Bacterial isolates
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/24—Hydrolases (3) acting on glycosyl compounds (3.2)
- C12N9/2402—Hydrolases (3) acting on glycosyl compounds (3.2) hydrolysing O- and S- glycosyl compounds (3.2.1)
- C12N9/2405—Glucanases
- C12N9/2434—Glucanases acting on beta-1,4-glucosidic bonds
- C12N9/2445—Beta-glucosidase (3.2.1.21)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K2039/505—Medicinal preparations containing antigens or antibodies comprising antibodies
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
- C12R2001/46—Streptococcus ; Enterococcus; Lactococcus
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y302/00—Hydrolases acting on glycosyl compounds, i.e. glycosylases (3.2)
- C12Y302/01—Glycosidases, i.e. enzymes hydrolysing O- and S-glycosyl compounds (3.2.1)
- C12Y302/01023—Beta-galactosidase (3.2.1.23), i.e. exo-(1-->4)-beta-D-galactanase
Definitions
- the present disclosure relates to anti-tumor bacterial strains, and compositions and methods using the same, and more particularly, to Enterococcus faecium spp. bacterial strains exhibiting anti-tumor activity, and preventing or treating tumors using the same It relates to a composition and method for
- the present disclosure relates to an anti-tumor bacterial strain, and a composition and method using the same, and more particularly, to an Enterococcus faecalis microorganism having anticancer activity, a composition comprising the same, and cancer prevention or treatment using the same it's about
- gut bacteria can be used to prevent or treat various diseases and disorders.
- WO2016/196605 discloses that modulating the level of one or more commensal microbes in a subject enhances an immune response by a subject, inhibits the growth or spread of cancer, and/or evades immunity by cancer Disclosed is a method of treating or preventing cancer in a subject by inhibiting and/or enhancing the efficacy of a therapeutic agent.
- WO2017/085520 discloses a composition for use in a method of treating or preventing cancer, comprising a bacterial strain of Enterococcus gallinarum species.
- WO2017/085518 discloses a composition for use in a method of treating or preventing a disease or condition mediated by the IL-17 or Th17 pathway, including a bacterial strain of Enterococcus faecium spp. there is.
- Enterococcus faecalis is found in the gastrointestinal tract of humans and other mammals. Enterococcus faecalis is a Gram-positive, cocci bacterium. Enterococcus faecalis can be grown at a temperature of 10 to 45 °C.
- Korean Patent Publication No. 10-2020-0054589 discloses Enterococcus faecalis KACC 92220P having the effect of lowering the lactose content.
- Korean Patent No. 10-2053730 discloses an Enterococcus faecalis AMI-1001 strain having antioxidant, anti-inflammatory or antibacterial activity.
- a first object of the present disclosure is to provide a bacterial strain of Enterococcus faecium species having antitumor activity characterized in lactate-producing ability compared to microbial growth.
- a second object of the present disclosure is to provide a composition for preventing or treating a tumor comprising a bacterial strain of the Enterococcus faecium species as an active ingredient.
- a third object of the present disclosure is to provide a method for preventing or treating a tumor in a subject, comprising administering to the subject the bacterial strain of Enterococcus faecium species or the composition.
- a fourth object of the present disclosure is to provide an Enterococcus faecalis LMT19-32 (Accession No. KCTC 14306BP) microorganism or a culture or extract thereof having anti-tumor activity.
- a fifth object of the present disclosure is to provide a pharmaceutical composition for preventing or treating cancer containing the Enterococcus faecalis LMT19-32 microorganism or a culture or extract thereof as an active ingredient.
- a sixth object of the present disclosure is to provide a food composition for preventing or improving cancer containing the Enterococcus faecalis LMT19-32 microorganism or a culture or extract thereof as an active ingredient.
- a seventh object of the present disclosure is to provide a method for preventing or treating cancer in a subject, comprising administering to the subject an amount of the Enterococcus faecalis LMT19-32 microorganism or a culture or extract thereof effective to treat cancer do.
- a first aspect of the present disclosure is
- i) belongs to the species Enterococcus faecium ,
- lactate/OD 600 a lactate-producing ability of 3 g/L or more compared to the growth of microorganisms during culturing for 48 hours;
- a second aspect of the present disclosure relates to a composition for preventing or treating a tumor, comprising the bacterial strain of Enterococcus faecium species as an active ingredient.
- a third aspect of the present disclosure relates to a method for preventing or treating a tumor in a subject, comprising administering the bacterial strain of Enterococcus faecium species, or the composition, to the subject in need thereof. it's about
- a fourth aspect of the present disclosure relates to an Enterococcus faecalis LMT19-32 (Accession No. KCTC 14306BP) microorganism or a culture or extract thereof having anti-tumor activity.
- a fifth aspect of the present disclosure relates to a pharmaceutical composition for preventing or treating cancer containing the Enterococcus faecalis LMT19-32 microorganism or a culture or extract thereof as an active ingredient.
- a sixth aspect of the present disclosure relates to a food composition for preventing or improving cancer containing the Enterococcus faecalis LMT19-32 microorganism or a culture or extract thereof as an active ingredient.
- a seventh aspect of the present disclosure relates to a method for preventing or treating cancer in a subject, comprising administering to the subject an amount of the Enterococcus faecalis LMT19-32 microorganism or a culture or extract thereof effective to treat the cancer will be.
- the bacterial strain according to the present disclosure increases the number of tumor-infiltrating T cells, CD8 T cells, and IFN ⁇ + CD8 T cells and thus exhibits excellent tumor suppressive activity, and thus can be effectively used for preventing or treating tumors.
- Enterococcus faecalis LMT19-32 (Accession No. KCTC 14306BP) microorganism having anti-tumor activity according to the present disclosure or a culture or extract thereof, it can be used to prevent or treat cancer .
- the pharmaceutical composition for preventing or treating cancer according to the present disclosure, it can be used to prevent or treat cancer.
- the food composition for preventing or ameliorating cancer according to the present disclosure, it is possible to prevent or ameliorate cancer.
- cancer in another aspect, according to the method for preventing or treating cancer in an individual according to the present disclosure, cancer can be effectively prevented or treated.
- 1 is an optical micrograph of the Enterococcus faecium LMT17-62 strain and KCTC13225 strain, which is a type strain, according to an aspect of the present disclosure.
- Figure 2a is a graph showing the tumor growth inhibition rate (%) of Enterococcus faecium strains selected from a mouse tumor induction model.
- Figure 2b is a graph showing the change in tumor size over time in the Enterococcus faecium LMT17-62 strain administered group.
- 2c is a graph showing changes in the number of tumor-infiltrating total T cells, CD8 T cells, and interferon gamma-positive CD8 T cells in the Enterococcus faecium LMT17-62 strain administered group.
- Figure 3a is a growth (OD 600 ) curve of the selected Enterococcus faecium strain.
- Figure 3b is a graph showing the amount of lactate production according to the culture time of the selected Enterococcus faecium strain.
- Figure 3c is a graph showing the lactate production amount (g / L) compared to the growth (OD 600 ) of Enterococcus faecium strains selected after culture for 24 hours and 48 hours.
- 4 is a graph showing the number of viable cells of Enterococcus faecium strains selected when cultured at pH 2.5.
- 5 is a graph showing the number of live cells of Enterococcus faecium strains selected when cultured in a bile salt-containing medium.
- 6 is a graph showing the number of viable cells of a selected anti-tumor-positive Enterococcus faecium strain attached to intestinal epithelial cells.
- FIG. 7 shows representative optical micrographs of the selected Enterococcus faecalis LMT19-32 strain and KCTC3206 strain, which is a type strain.
- 8A and 8B are diagrams showing the results of measuring the tumor size after administration of the Enterococcus faecalis LMT19-32 strain to mice having tumors.
- 9a, 9b, and 9c show the results of analyzing the T cells, CD8 T cells and IFN ⁇ + CD8 T cells infiltrating the tumor after the Enterococcus faecalis LMT19-32 strain was administered to the tumor-bearing mice.
- the present disclosure is based on the discovery of the fact that a bacterial strain of Enterococcus faecium, which is characterized by lactate-producing ability compared to microbial growth, exhibits excellent antitumor activity.
- tumor and cancer are used interchangeably and encompass, eg, solid and liquid, eg, diffuse or circulating tumors. This includes precancerous as well as malignant cancers and tumors. It also includes primary malignant cells or tumors and secondary malignant cells or tumors (eg, metastatic tumors).
- anti-tumor and “anti-cancer” are denoted by a variety of means, including, but not limited to, for example, a reduction in tumor size, a reduction in the number of tumor cells, a reduction in tumor cell proliferation, or a reduction in tumor cell survival. possible biological effects.
- One aspect of the present disclosure is
- i) belongs to the species Enterococcus faecium ,
- lactate/OD 600 a lactate-producing ability of 3 g/L or more compared to the growth of microorganisms during culturing for 48 hours;
- the bacterial strain may have a lactate-producing ability (lactate/OD 600 ) of greater than 2.5 g/L compared to the growth of microorganisms when cultured for 24 hours.
- the bacterial strain may exhibit a tumor growth inhibition rate of 10% or more, 15% or more, 20% or more, 25% or more, 30% or more, 35% or more. In certain instances, the bacterial strain may be one that exhibits tumor growth inhibition of 10% to 40%, 15% to 40%, 20% to 40%, 25% to 40%, 30% to 40%, 35% to 40%. there is.
- the bacterial strain may be one having iv) beta-galactosidase activity.
- the bacterial strain may be one having a degradability of v) D-sorbitol.
- the bacterial strain may be one having vi) D-tagatose degradability.
- the bacterial strain may be one having vii) methyl-aD-mannopyranoside degradability.
- the bacterial strain comprises the three characteristics of i) to iii), the four characteristics of i) to iv), i) to v), i) to iv), i) to vi) or i) to vii ), six properties of i) to vi) or i) to vii), or seven properties of i) to vii) may be satisfied.
- the bacterial strain may be, but is not limited to, one or more of those shown in Table 1 below.
- a second aspect of the present disclosure relates to a composition for preventing or treating a tumor, comprising the bacterial strain as an active ingredient.
- the terms “treat”, “treating” or “treatment” include, for example, healing of wounded or damaged tissue, or altering, altering, enhancing, ameliorating, ameliorating and/or modifying an existing or recognized disease, disorder or condition. or alleviation or reduction (including partial reduction, significant reduction, near complete reduction and complete reduction), resolution or prevention (temporary or permanent) of a disease, disorder or condition, such as to achieve the desired therapeutic outcome, by beautifying it means.
- prevention means delaying the onset of a disease, disorder or condition. Prevention may be considered complete if the onset of the disease, disorder or condition is delayed for a predetermined period.
- the bacterial strain included in the composition may exist as a live cell or a dead cell, and may exist in a dried or lyophilized form.
- the bacterial strain may be used in any form, including cultured or isolated strains, as long as it maintains antitumor activity, all of which fall within the scope of the present invention.
- culture refers to a cultured strain, its metabolites, extra nutrients, etc. obtained by culturing the strain for a certain period in a medium capable of supplying nutrients so that the bacterial strain of the present disclosure can grow and survive in vitro. It means a composition comprising.
- the composition may be for oral or parenteral administration.
- Parenteral administration includes, but is not limited to, intravenous injection, subcutaneous injection, intramuscular injection, intraperitoneal injection, endothelial administration, topical administration, intranasal administration, intrapulmonary administration, rectal administration, intratumoral administration, and the like.
- the composition may be for oral administration.
- the composition may be a pharmaceutical composition, and in this case, it may be formulated by further including a pharmaceutically acceptable carrier or additive in addition to the active ingredient.
- the carrier or additive may include an excipient, a disintegrant, a sweetener, a binder, a coating agent, a swelling agent, a lubricant, a lubricant, a flavoring agent, a coloring agent, a diluent, a dispersing agent, a surfactant, an antioxidant, a buffer, a bacteriostatic agent, and the like.
- the composition may be formulated as an injectable formulation such as an aqueous solution, suspension, emulsion, etc., pills, powders, capsules, granules or tablets.
- the composition may be a food or food additive composition, and in this case, it may include a pharmaceutically acceptable diluent or carrier.
- the diluent may be water, medium or a buffer such as PBS.
- the carrier may be a conventional excipient, disintegrant, binder, lubricant, thickener or filler.
- the food may be a health functional food.
- the food may be beverages, confectionery, diet bar, chocolate, pizza, ramen, other noodles, gum, ice cream, and the like.
- composition When the composition is for oral administration, it may be coated with a coating agent to increase acid resistance, heat resistance, bile resistance, survival rate, intestinal fixability, etc. of the bacterial strain.
- Available coating agents include enteric coating agents; gelatin, polysaccharides, gums and the like; water-soluble polymers, hyaluronic acid, porous particles and proteins; casein, and coating agent, edible oil and fat, Extracellular Polymeric Substance of Lactobacillus plantarum, and alginic acid; silk fibroin, etc., but are not particularly limited thereto, and may be single coated or multi-coated, for example double, triple or quadruple coated.
- the tumor may be a solid tumor.
- solid cancer include breast cancer, lung cancer, head or neck cancer, colorectal cancer, esophageal cancer, laryngeal cancer, stomach cancer, liver cancer, pancreatic cancer, bone cancer, skin cancer, skin or intraocular melanoma, uterine cancer, ovarian cancer, rectal cancer, perianal cancer, Colon cancer, breast cancer, fallopian tube carcinoma, endometrial carcinoma, cervical carcinoma, vaginal carcinoma, vulvar carcinoma, Hodgkin's disease, small intestine cancer, endocrine adenocarcinoma, thyroid cancer, parathyroid cancer, adrenal cancer, soft tissue sarcoma, urethral cancer, penile cancer, prostate cancer , lymphocyte lymphoma, bladder cancer, kidney or ureter cancer, renal cell carcinoma, renal pelvic carcinoma, CNS tumor, primary CNS lymphoma, spinal cord tumor, brainstem glioma, and pituitary adenoma.
- the dosage varies according to the patient's weight, age, sex, health status, diet, administration time, administration method, administration period or interval, excretion rate, constitutional specificity, the nature of the preparation, the severity of the disease, etc. and may be appropriately selected by those skilled in the art.
- the active ingredient bacterial strain may be administered at 1 ⁇ 10 6 CFU or more, 1 ⁇ 10 7 CFU or more, 1 ⁇ 10 8 CFU or more, 1 ⁇ 10 9 CFU or more.
- the bacterial strain may be administered at 1 ⁇ 10 15 CFU or less, 1 ⁇ 10 14 CFU or less, 1 ⁇ 10 13 CFU or less, and 1 ⁇ 10 12 CFU or less.
- a bacterial strain 1 ⁇ 10 6 to 1 ⁇ 10 15 CFU, 1 ⁇ 10 7 to 1 ⁇ 10 14 CFU, 1 ⁇ 10 8 to 1 ⁇ 10 13 CFU, 1 ⁇ 10 9 to 1 ⁇ 10 12 CFU , 1 ⁇ 10 10 to 1 ⁇ 10 12 CFU, 1 ⁇ 10 11 to 1 ⁇ 10 12 CFU.
- the active ingredient, the bacterial strain may be administered once to several times a day.
- the composition may be for use in combination with one or more other therapeutic agents, for example, an anticancer agent, an antiviral agent, a cytokine, or an immune agent.
- an anticancer agent for example, an anticancer agent, an antiviral agent, a cytokine, or an immune agent.
- combination refers to any form of two or more different therapeutic agents such that a second therapeutic agent is administered while the previously administered therapeutic agent is still effective in the body.
- two therapeutic agents are simultaneously effective in a subject, which may include a synergistic effect of the two therapeutic agents.
- the different therapeutic agents may be administered simultaneously or sequentially as a single agent or as separate agents.
- the anticancer agent may be a chemotherapeutic agent.
- chemotherapeutic agents include alkylating agents, nitrosourases, antimetabolites, anticancer drugs, plant-derived alkaloids, topoisomerase inhibitors, hormonal drugs, hormone antagonists, leukopenia (neutropenia) therapeutic drugs, thrombocytopenia. It includes therapeutic drugs, antiemetics, aromatase inhibitors, P-glycoprotein inhibitors, platinum complex derivatives, other immunotherapeutic drugs and other anticancer drugs.
- Exemplary cytotoxic agents that may be co-administered may be anti-microtubule agents, topoisomerase inhibitors, antimetabolites, mitotic inhibitors, alkylating agents, anthracyclines, vinca alkaloids, intercalating agents, signal transduction pathways. agents that promote apoptosis, proteosome inhibitors, and radiation (local or systemic irradiation).
- additional therapeutic agents include, but are not limited to, peptides, polypeptides, proteins, fusion proteins, nucleic acid molecules, small molecules, mimetic agents, synthetic drugs, inorganic molecules, and organic molecules.
- the anti-cancer agent may be an immuno-cancer agent.
- immuno-cancer agent refers to a compound, composition or treatment that indirectly or directly enhances, stimulates or increases the body's immune response to cancer cells and/or reduces the side effects of other anticancer therapies.
- immuno-oncology agents include cytokines, cancer vaccines, monoclonal antibodies, non-cytokine adjuvants, immune cells (T cells, NK cells, dendritic cells, B cells, etc.), immune checkpoint inhibitors, and the like.
- the immuno-oncology agent is an immune checkpoint inhibitor. Immune checkpoint inhibitors include peptides, antibodies, nucleic acid molecules and small molecules.
- an immune checkpoint inhibitor may be administered to enhance the proliferative, migratory, persistence and/or cytotoxic activity of CD8+ T cells in a subject, and particularly tumor invasiveness of CD8+ T cells in a subject.
- checkpoint inhibitors are activated T lymphocytes, such as cytotoxic T lymphocyte-associated protein 4 (CTLA4) and programmed cell death 1 (PD-1), or the killer cell immunoglobulin-like receptor (KIR) family.
- CTL4 cytotoxic T lymphocyte-associated protein 4
- PD-1 programmed cell death 1
- KIR killer cell immunoglobulin-like receptor
- antagonists that block immunosuppressive receptors expressed by NK cells such as various members of It is a blocking antagonist.
- an immune checkpoint inhibitor is an antibody or antigen-binding fragment thereof.
- the checkpoint inhibitor is an anti-PD-1 antibody, an anti-PD-L1 antibody, an anti-PD-L2 antibody, an anti-CTLA-4 antibody, an anti-TIM-3 antibody, an anti-LAG3 antibody, an anti-IDO1 antibody.
- immune checkpoint inhibitors include Ipilimumab (Yervoy®, BMS/Ono), Tremelimumab (AstraZeneca), atezolizumab (Tecentric®, Roche), and nivolumab (nivolumab) (Opdivo®, BMS/Ono), Pembrolizumab (Keytruda®, MSD), Avelumab (Bavencio®, Pfizer/Merck Germany), Durvalumab ( Imfinzi®, AstraZeneca/MedImmune), and antigen-binding fragments thereof may be at least one selected from, but not limited to.
- the immuno-oncology agent is a solution, suspension, powder, granule, tablet, capsule, pill, extract, emulsion, syrup, aerosol, etc. oral dosage form, sterile injection solution, according to a conventional method for each purpose of use. It can be formulated and used in various forms, such as parenteral formulations such as injections of The immunotherapy may be administered orally or parenterally via various routes including intravenous, intraperitoneal, subcutaneous, intradermal, intramuscular, spinal, spinal, or rectal administration or injection.
- the dosage may vary depending on the patient's weight, age, sex, health status, diet, administration time, administration method, administration period or interval, excretion rate, constitutional specificity, properties of the preparation, severity of disease, etc. It may be appropriately selected by a person skilled in the art. For example, it may be in the range of about 0.1 to 10,000 mg/kg, but is not limited thereto, and may be administered in divided doses from once to several times a day.
- a third aspect of the present disclosure relates to a method for preventing or treating a tumor in a subject, comprising administering the bacterial strain, or the composition, to the subject in need thereof.
- administration refers to a step of providing an active ingredient or a composition comprising the same to a subject.
- the active ingredient or a composition comprising the same may be administered through various appropriate routes.
- the subject to be administered can include, without limitation, humans or animals, such as humans, pigs, dogs, cats, cattle, horses, mice, and the like.
- Enterococcus faecalis Enterococcus faecalis LMT19-32
- a first aspect provides an Enterococcus faecalis LMT19-32 (Accession No. KCTC 14306BP) microorganism or a culture or extract thereof having anti-tumor activity.
- the microorganism or its culture or extract may inhibit tumor growth.
- the microorganism or its culture or extract may increase the level of immune cells in the tumor.
- the microorganism or a culture or extract thereof may increase the level of CD8 T cells, for example CD8 T cells expressing IFN ⁇ , in a tumor.
- the microorganism or its culture or extract can increase the infiltration of immune cells into the tumor.
- the immune cells may be CD8 T cells, CD4 T cells, NK cells, B cells, dendritic cells, macrophages, and neutrophils.
- the microorganism or its culture or extract may activate immune cells.
- the activation may be such that the microorganism or its culture or extract promotes the production, secretion or production and secretion of cytokines or enzymes having anti-tumor activity.
- the cytokine or enzyme may be one or more of interferon gamma and granzyme B.
- the microorganism is excellent in bile resistance and intestinal fixability. The microorganism was isolated from human feces.
- the bile acid resistance is 65% or more, 70% or more, 75% or more, 80% or more, 85% or more, 90% or more, 93% or more, 95% or more when cultured for 2 hours at 37°C in MRS medium containing 0.3% bile acid. % or more, 75 to 90%, 75 to 95%, 80 to 90%, 80% to 95%, 85% to 90%, or 90 to 95%.
- the microorganism or a culture or extract thereof may promote infiltration of CD8 T cells into a tumor.
- the promotion is 5% or more, 10% or more, 15% or more, 20% or more, 25% of the number of CD8 T cells to the number of T cells in the tumor, compared to the case in which the microorganism or the culture or extract thereof is not present.
- the microorganism or a culture or extract thereof may promote the production, secretion or production and secretion of one or more of interferon gamma and granzyme B of tumor-infiltrating CD8 T cells.
- the promotion increases the percentage of interferon-gamma-producing cells among CD8 T cells by 5% or more, 10% or more, 15% or more, 20% or more, 25%, compared to the case in which the microorganism or its culture or extract is not present.
- the promotion increases the percentage of granzyme B-producing cells among CD8 T cells by 5% or more, 10% or more, 15% or more, 20% or more, compared to the case in which the microorganism or its culture or extract is not present.
- the microorganism or its culture or extract may inhibit the growth of tumors by CD8 T cells.
- the inhibition is 5% or more, 10% or more, 15% or more, 20% or more, 25% or more, 30% or more, 35% or more of the size of the tumor compared to the case in which the microorganism or its culture or extract is not present. , 45% or more, 50% or more, 55% or more, 65% or more, 70% or more, 75% or more, 80% or more, 85% or more, 90% or more, 100% or more, 5% to 100%, 10% to 100%, 20% to 100%, 30% to 100%, 40% to 100%, 50% to 100%, 60% to 100%, 70% to 100%, 80% to 100%, or 90% to 100% % may be reduced.
- a second aspect provides a pharmaceutical composition for preventing or treating cancer containing the above-mentioned microorganism or a culture or extract thereof as an active ingredient.
- the cancer may be a solid cancer.
- the cancer may be a solid cancer existing in a tissue other than a tissue directly contacted when the microorganism is orally administered.
- the tissues in direct contact include the oral cavity, esophagus, stomach, duodenum, small intestine, large intestine and colon.
- tissues other than the tissues in direct contact are breast, lung, head, neck, liver, pancreas, bone, fallopian tube, long arch, vagina, vulva, thyroid gland, parathyroid gland, adrenal gland, soft tissue, urethra, penis, prostate, bladder , kidney, ureter, or CNS.
- the cancer may be metastatic cancer.
- the cancer may be, for example, but not limited to, a cancer listed in "I. Enterococcus faecium".
- the composition may be for inhibiting the growth of cancer.
- the composition may be for administration together with an immune checkpoint inhibitor.
- the immune checkpoint inhibitor may be for administration before, simultaneously with, or after administration of the above-described microorganism or a culture or extract thereof.
- the immune checkpoint inhibitor may be, for example, but not limited to, those listed in "I. Enterococcus faecium”.
- the composition may be for administration together with a chemotherapeutic agent.
- the chemotherapeutic agent may be for administration before, simultaneously with, or after administration of the microorganism or its culture or extract.
- the chemotherapeutic agent may be, for example, but not limited to, those listed in "I. Enterococcus faecium”.
- the composition may include a pharmaceutically acceptable carrier.
- the carrier may be a stabilizer, excipient, diluent, or adjuvant.
- the carrier may be, for example, any and all aqueous and non-aqueous solutions, sterile solutions, solvents, buffers, such as phosphate buffered saline (PBS) solutions, water, suspensions suitable for pharmaceutical administration, particularly suitable for oral administration.
- PBS phosphate buffered saline
- emulsions for example oil/water emulsions, various types of wetting agents, liposomes, dispersion media and coating agents.
- PBS phosphate buffered saline
- emulsions for example oil/water emulsions, various types of wetting agents, liposomes, dispersion media and coating agents.
- the use of such media and agents in pharmaceutical compositions is well known in the art, and compositions comprising such carriers may be formulated by well known conventional methods.
- the composition may include the microorganism or its culture or extract in a “therapeutically effective amount”.
- therapeuticically effective amount means an amount sufficient to exhibit a therapeutic effect when administered to an individual in need of treatment when administered once or twice or more.
- treatment means treating a cancer disease or medical condition of cancer in a subject, eg, a mammal, including a human, including: alleviation of a cancer disease or medical condition of cancer; inhibiting a cancer disease or medical symptom of cancer, ie, slowing or arresting the progression of the disease or medical symptom in a subject; or alleviating a cancer disease or a medical symptom of cancer in a subject.
- the "effective amount” can be appropriately selected by those skilled in the art.
- the "effective amount" may be 0.01 to 50% by weight, or 0.1 to 20% by weight, based on the weight of the composition.
- the composition may be administered at 1x10 6 CFU/g or more, 1x10 7 CFU/g or more, 1x10 8 CFU/g or more, 1x10 9 CFU/g or more, based on the weight of the composition.
- the bacterial strain may be administered at 1x10 15 CFU/g or less, 1x10 14 CFU/g or less, 1x10 13 CFU/g or less, and 1x10 12 CFU/g or less.
- the composition may be administered orally. Accordingly, the composition may be formulated in various forms such as tablets, capsules, liquid preparations, for example, aqueous solutions, dry syrups, or suspensions.
- excipients such as lactose and corn starch and lubricants such as magnesium stearate may be usually added.
- capsules for oral administration lactose and/or dry corn starch may be used as diluents.
- the active ingredient may be combined with emulsifying and/or suspending agents. If desired, certain sweetening and/or flavoring agents may be added.
- the composition may be a formulation that allows the microorganism or its culture or extract to be stabilized in acidity such as gastric juice.
- the composition may be a capsule containing the microorganism or its culture or extract therein, or a tablet in which the microorganism or its culture or extract is coated with a film.
- a third aspect provides a food composition for preventing or ameliorating cancer containing the above-mentioned microorganism or a culture or extract thereof as an active ingredient.
- the composition may include a food pharmaceutically acceptable carrier.
- the carrier may be a stabilizer, excipient, diluent, or adjuvant.
- the carrier may be, for example, any and all aqueous and non-aqueous solutions, sterile solutions, solvents, buffers, such as phosphate buffered saline (PBS) solutions, water, suspensions suitable for pharmaceutical administration, particularly suitable for oral administration.
- PBS phosphate buffered saline
- emulsions for example oil/water emulsions, various types of wetting agents, liposomes, dispersion media and coating agents.
- PBS phosphate buffered saline
- emulsions for example oil/water emulsions, various types of wetting agents, liposomes, dispersion media and coating agents.
- the use of such media and agents in pharmaceutical compositions is well known in the art, and compositions comprising such carriers may be formulated by well known conventional methods.
- the food product may be a dairy product, soy product, vegetable and fruit product, or a food additive.
- the dairy product may be fermented milk, butter, cheese, or milk powder.
- the food may be a health functional food.
- the health functional food may be a health functional food for preventing or improving cancer.
- the food may also be beverages, confectionery, diet bar, chocolate, pizza, ramen, other noodles, gum, and ice cream.
- the food may include ingredients commonly added during food production, for example, proteins, carbohydrates, fats, nutrients, seasonings and flavoring agents.
- Carbohydrates used in food preparation include monosaccharides such as glucose, fructose and the like; disaccharides such as maltose, sucrose, oligosaccharides and the like; and polysaccharides such as conventional sugars such as dextrin, cyclodextrin, and the like, and sugar alcohols such as xylitol, sorbitol, erythritol. It is also possible to use natural flavoring agents and synthetic flavoring agents such as saccharin and aspartame as flavoring agents.
- the natural flavoring agent may be a stevia extract such as thaumatin, rebaudioside A, and glycyrrhizin.
- a health functional food means that when ingested, it brings a specific effect on health.
- the microorganism may be 0.01 to 50% by weight, or 0.1 to 20% by weight based on the weight of the composition.
- the composition may be administered at 1x10 6 CFU/g or more, 1x10 7 CFU/g or more, 1x10 8 CFU/g or more, 1x10 9 CFU/g or more, based on the weight of the composition.
- the bacterial strain may be administered at 1x10 15 CFU/g or less, 1x10 14 CFU/g or less, 1x10 13 CFU/g or less, and 1x10 12 CFU/g or less.
- a fourth aspect provides a method for preventing or treating cancer in a subject, comprising administering to the subject an amount of the microorganism or a culture or extract thereof effective to treat the cancer.
- the subject may be a mammal.
- the mammal may be a human or a mammal other than a human.
- the administration may be oral administration.
- the “amount effective to treat cancer” refers to an amount effective to prevent or treat cancer.
- the “amount effective to treat cancer” may be 0.01 mg to 200 mg per kg body weight of the microorganism or a culture or extract thereof, or 0.1 mg to 400 mg per kg body weight of the microorganism or a culture or extract thereof.
- the “amount effective to treat cancer” may be administered in an amount of 1x10 6 CFU or more, 1x10 7 CFU or more, 1x10 8 CFU or more, 1x10 9 CFU or more per subject.
- the bacterial strain may be administered at 1x10 15 CFU or less, 1x10 14 CFU or less, 1x10 13 CFU or less, and 1x10 12 CFU or less.
- the bacterial strain can be administered at 1x10 6 CFU to 1x10 15 CFU, 1x10 7 CFU to 1x10 14 CFU, 1x10 8 CFU to 1x10 13 CFU, 1x10 9 CFU to 1x10 12 CFU, 1x10 10 CFU to 1x10 12 CFU.
- the active ingredient, a bacterial strain may be administered in divided doses from two to several times a day.
- the method may comprise administering in conjunction with an immune checkpoint inhibitor.
- the immune checkpoint inhibitor may be administered before, simultaneously with, or after the administration of the above-described microorganism or a culture or extract thereof.
- the immune checkpoint inhibitor can be, for example, “I. Enterococcus faecium”, but is not limited thereto.
- the method may also comprise administering in combination with a chemotherapeutic agent.
- the chemotherapeutic agent may be administered before, simultaneously with, or after administration of the above-described microorganism or a culture or extract thereof.
- the chemotherapeutic agent may be, for example, but not limited to, those listed in "I. Enterococcus faecium”.
- Enterococcus faecalis LMT19-32 (Accession No. KCTC 14306BP) microorganism with anti-tumor activity.
- a pharmaceutical composition for preventing or treating cancer containing the microorganism of item 1 or a culture or extract thereof as an active ingredient.
- composition according to item 2 wherein the cancer is a solid cancer.
- composition according to item 2 for administration with an immune checkpoint inhibitor.
- composition of item 4 wherein the immune checkpoint inhibitor is a CTLA4 inhibitor, a PD-1 inhibitor, or a PD-L1 inhibitor.
- a food composition for preventing or ameliorating cancer containing the microorganism of item 1 or a culture or extract thereof as an active ingredient.
- the selected strains were named LMT17-62, LMT17-74, LMT15-24, LMT17-25, LMT15-4, LMT17-43, LMT17-40 and LMT2-17, respectively.
- the selected 8 strains were cultured in MRS plate medium (Difco, USA) and the colony morphology was observed.
- the colony form of the selected strain is shown in Table 2 below.
- Morphological characteristics of the selected strain LMT17-62 KCTC13225 form circle circle size 0.5 mm 0.5 mm color cream color cream color Opacity opacity opacity bump convex convex surface lubricity lubricity aerobic growth + + anaerobic growth + +
- FIG. 1 is an optical micrograph of Enterococcus faecium LMT17-62 strain and KCTC13225 strain, which is a type strain, among 8 selected strains. As shown in FIG. 1 , the Enterococcus faecium LMT17-62 strain was confirmed to have a spherical shape typical of the Enterococcus genus.
- the 16S rRNA gene was amplified and sequenced using universal bacterial primers (27F (SEQ ID NO: 1) and 1492R (SEQ ID NO: 2)) (Macrogen).
- the 16S rDNA sequence of the isolated strain is shown in SEQ ID NOs: 3 to 10 (SEQ ID NO: 3: 16S rDNA sequence of LMT17-62; SEQ ID NO: 4: 16S rDNA sequence of LMT17-74; SEQ ID NO: 5: 16S of LMT15-24 rDNA sequence; SEQ ID NO: 6: 16S rDNA sequence of LMT17-25; SEQ ID NO: 7: 16S rDNA sequence of LMT15-4; SEQ ID NO: 8: 16S rDNA sequence of LMT17-40; SEQ ID NO: 9: 16S rDNA sequence of LMT2-17 and SEQ ID NO: 10: 16S rDNA sequence of LMT17-43).
- NCBI blast http://www.nc
- the isolated strains were deposited with the Korean Collection for Type Cultures (KCTC) at the Korea Research Institute of Bioscience and Biotechnology on August 26, 2020, and each Enterococcus faecium LMT17-62 (Accession No.: KCTC 14284BP) ), Enterococcus faecium LMT17-74 (Accession Number: KCTC 14285BP), Enterococcus faecium LMT15-24 (Accession Number: KCTC 14289BP), Enterococcus faecium ( Enterococcus faecium ) LMT17- 25 (Accession number: KCTC 14288BP), Enterococcus faecium LMT15-4 (Accession number: KCTC 14290BP), Enterococcus faecium LMT17-43 (Accession number: KCTC 14286BP), Enterococcus faecium Um ( Enterococcus faec
- Example 2 Evaluation of antitumor efficacy of selected Enterococcus faecium strains
- C57BL/6 mice male, 20-22 g used in the mouse tumor induction model were purchased from Orient Bio, and were acclimatized to the environment for 1 week before the start of the experiment.
- 2.5 ⁇ 10 5 MC38 cells derived from colorectal cancer of C57BL/6 mice were injected into the subcutaneous tissue of the back of the mouse, and groups were separated based on the tumor size (50-70 mm 3 ) one week after the tumor injection.
- the Enterococcus faecium strain was orally administered at 1.0 ⁇ 10 9 CFU per mouse using a sonde once every two days.
- anti-PD1 antibody (clone number: RMP1-14) was intraperitoneally administered at 10 mg per kg of mouse weight twice a week.
- PBS phosphate buffered saline
- Tumor size was measured up to 21 days after injection of the MC38 tumor cell line into mice, and then, the mice were sacrificed using carbon dioxide to extract tumors and immune organs, and tumor-infiltrating immune cells were analyzed.
- the size of the tumor was measured twice a week from 7 days after injection of the tumor cell line.
- the long axis and the short axis of the tumor were measured using a vernier caliper, and the tumor size was calculated according to the following equation.
- Tumor size (long axis ⁇ (short axis) 2 )/2
- Tumor growth inhibition rate (%) was calculated according to the following equation.
- Tumor growth inhibition (%) (1 - Vt/Vc) ⁇ 100
- Vc mean tumor size in the negative control group at the time of tumor size assessment
- Vt Mean tumor size in the experimental group at the time of tumor size evaluation.
- FIG. 2b shows the tumor size up to 21 days after the end of the experiment after the injection of the tumor cell line in the Enterococcus faecium LMT17-62 strain administered group. As shown in FIG. 2b , it was confirmed that the Enterococcus faecium LMT17-62 administration group and the positive control anti-PD1 antibody administration group were statistically significantly inhibited in tumor growth compared to the negative control group.
- CD8 T cells which are tumor-infiltrating immune cells, are important indicators of anti-tumor responses, and interferon gamma secreted by CD8 T cells is a functional cytokine that exhibits immune cell activity.
- tumors were extracted and analyzed after the end of the animal experiment. The extracted tumors were separated into single cells using RPMI1640 medium containing 50 ⁇ g/ml Liberase and 40 ⁇ g/ml DNase I and a cell strainer.
- the isolated cells were stimulated with 50 ng/ml PMA (Phorbol 12-myristate 13-acetate) and 500 ng/ml ionomycin in RPMI1640 medium containing 10% Fetal bovine serum for 4 hours. After stimulation, cells were stained with the antibodies in Table 3 for immune cell analysis and interferon gamma generation confirmation, and analyzed using CANTO II flow cytometry equipment.
- PMA Phorbol 12-myristate 13-acetate
- ionomycin in RPMI1640 medium containing 10% Fetal bovine serum
- Figure 2c shows the total number of tumor-infiltrating T cells, the number of CD8 T cells and interferon gamma producing CD8 T cells.
- Tumor-infiltrating T cells and CD8 T cells were significantly increased in the LMT17-62 strain treated group compared to the PBS treated group.
- interferon gamma a CD8 T cell activator
- Example 3 Analysis of physiological activity characteristics of anti-tumor-positive Enterococcus faecium strains
- the colonies of the anti-tumor-positive and anti-tumor-negative strains were cultured in MRS liquid medium for 24 hours, and then the initial OD 600 (optical density) value for each strain coincided with 50 Inoculated into ml or 250 ml erlenmeyer flask. Thereafter, for the measurement of the growth curve of the strain, the OD 600 value of the strain was measured every hour using a spectrophotometer Ultrospec 7000 (biochrom, UK). The results are shown in Figure 3a.
- the LMT17-62 strain having anti-tumor efficacy stopped growing after 8 hours after culture, but the anti-tumor-negative LMT2-17 strain continued to grow.
- the amount of lactate, a metabolite of the strain present in the culture medium was confirmed using a biochemical analyzer YSI2900 (Xylem, USA).
- the enzyme activity was evaluated using the Rapid ID 32A kit (BioMetrieux, France), and the results are shown in Table 4 below.
- the Enterococcus faecium strain group (LMT17-62, LMT17-74, LMT15-24, LMT17-25) with anti-tumor efficacy was beta -Galactosidase ( ⁇ -galactosidase) had enzyme activity.
- anti-tumor strains No.1, No.2, No.3, No.4, and No.5 are LMT17-62, LMT17-74, LMT15-24, LMT17-25, and LMT15-4, in that order. , respectively, and control strains No.1, No.2, and No.3 represent LMT17-43, LMT17-40, and LMT2-17, respectively, in that order.
- anti-tumor strains No.1, No.2, No.3, No.4, and No.5 are LMT17-62, LMT17-74, LMT15-24, LMT17-25, and LMT15-4 in that order. , respectively, and control strains No.1, No.2, and No.3 represent LMT17-43, LMT17-40, and LMT2-17, respectively, in that order.
- the antitumor-positive Enterococcus faecium strain was shown to have rather low acid resistance, so it may be preferable to use a capsule or a coating agent during formulation.
- the selected anti-tumor-positive Enterococcus faecium strain is It can be a basis for confirming that it can sufficiently survive in the intestine of animals.
- a human epithelial colorectal adenocarcinoma cell Caco-2 cell line (KCLB 30037.1) purchased from the Korea Cell Line Bank was used.
- Caco-2 cells were cultured in Dulbecco's modified Eagle's medium (DMEM; Gibco, USA) containing 10% fetal bovine serum (FBS) (Gibco, USA) at 5% CO 2 , 37°C conditions at 7 ⁇ 10 4 cells/100. It was aliquoted so as to become ⁇ l and cultured to form a cell monolayer in a 96-well plate (Corning, USA).
- DMEM Dulbecco's modified Eagle's medium
- FBS fetal bovine serum
- the selected antitumor-positive Enterococcus faecium strain cultured in MRS liquid medium was washed with phosphate buffered saline (PBS) and then suspended in DMEM medium without antibiotic added, and Caco- The amount of Enterococcus faecium strain was added to 2 cells so that 1 ⁇ 10 7 CFU was added, and incubated for 2 hours at 5% CO 2 , 37° C. conditions.
- the cells were washed 5 times with PBS, and the adhered cells were removed with 100 ⁇ l of 0.1% Triton x-100 and then plated on MRS solid medium. After culturing at 37° C. for 24 hours, the number of colonies on the plate medium was counted to investigate the intestinal fixability of the Enterococcus faecium strain.
- FIG. 6 shows the number of selected antitumor-positive Enterococcus faecium strains attached to intestinal epithelial cells.
- LMT17-62 exhibited an intestinal fixation force of 0.31%, LMT17-74 1.55%, LMT15-24 0.46%, and LMT17-25 0.48% against intestinal epithelial cells (Caco-2). confirmed to have.
- Enterococcus faecalis Enterococcus faecalis LMT19-32
- Example 1 Isolation and identification of Enterococcus faecalis LMT19-32 strain
- Enterococcus faecalis strains were isolated from adult fecal samples.
- the sample was smeared on MRS medium (Difco Co., USA) and cultured anaerobically at 30°C.
- MRS medium Denssion Resistive Staline medium
- the sample was taken aseptically, diluted with 180 ml of 0.85% NaCl solution, and the fecal stock solution was homogenized with a stomacher for 5 minutes.
- a fecal sample was prepared by serially diluting the homogenized sample in a tube containing 9 ml of a sterile 0.85% NaCl solution.
- the sample was spread on MRS plate medium (Difco, USA) and cultured at 37°C for 2-3 days.
- the selected Enterococcus faecalis strain was cultured in MRS plate medium (Difco, USA) and the colony shape was observed.
- the colony forms in the MRS plate medium of the selected Enterococcus faecalis strain and the Enterococcus faecalis type strain KCTC3206 are shown in Table 6 below.
- LMT19-32 KCTC3206 form circle circle size 0.8mm 0.8mm color cream color cream color transparency opacity opacity bump convex convex surface lubricity lubricity aerobic growth + + anaerobic growth + +
- FIG. 7 shows representative optical micrographs of the selected Enterococcus faecalis LMT19-32 strain and KCTC3206 strain, which is a type strain. As shown in FIG. 7 , the LMT19-32 strain was similar to a typical Enterococcus genus as a cocci.
- the 16S rRNA gene of the isolated LMT19-32 strain was amplified, and the nucleotide sequence of the amplified 16S rRNA gene was analyzed.
- the amplification was performed using the LMT19-32 strain genomic DNA as a template and PCR using the oligonucleotide of SEQ ID NO: 11 and the oligonucleotide of SEQ ID NO: 12 (Macrogen Co., Ltd.) as a primer set.
- the nucleotide sequence of 16S rDNA of the isolated LMT19-32 strain is shown in SEQ ID NO: 13.
- the nucleotide sequence of the identified 16S rDNA was compared with the nucleotide sequence of the known 16S rDNA using NCBI blast (http://www.ncbi.nlm.nih.gov/).
- the 16S rDNA of LMT19-32 had 100% sequence identity with Enterococcus faecalis species.
- LMT19-32 was the same as that of Enterococcus faecalis.
- the LMT19-32 strain was identified as a new strain belonging to a new Enterococcus faecalis species.
- LMT19-32 lactic acid bacteria as " Enterococcus faecalis LMT19-32" (Accession No.: KCTC14306BP), and it was transferred to the Korea Cell Line Bank (Korean Collection for Type Cultures, KCTC) at the Korea Research Institute of Bioscience and Biotechnology 2020 Deposited on September 9, 2017.
- Example 2 Characterization of physiological activity of Enterococcus faecalis LMT19-32 strain
- the sugar metabolism characteristics of the selected LMT19-32 strain were confirmed by using the API 50 CHL kit (BioMetrieux, France) according to the supplier's experimental method.
- Table 7 shows the sugar fermentation characteristics of the identified LMT19-32 strain.
- the Enterococcus faecalis LMT19-32 strain was shown to have somewhat low acid resistance, so it may be preferable to use a capsule or a coating agent during formulation.
- a human epithelial colorectal adenocarcinoma cell Caco-2 cell line (KCLB 30037.1) purchased from the Korea Cell Line Bank was used.
- Caco-2 cells were cultured in Dulbecco's modified Eagle's medium (DMEM; Gibco, USA) containing 10% fetal bovine serum (FBS) (Gibco, USA) under 5% CO 2 , 37°C conditions at 7 x 10 4 cells/100 ⁇ l. , and cultured to form a cell monolayer in a 96-well plate (Corning, USA).
- DMEM Dulbecco's modified Eagle's medium
- FBS fetal bovine serum
- the LMT19-32 strain cultured in MRS liquid medium was washed with PBS and then suspended in DMEM medium without antibiotic added, and the amount of LMT19-32 strain was 1x10 7 CFU in Caco-2 cells constituting the cell monolayer. It was added as much as possible, and incubated for 2 hours at 5% CO 2 , 37° C. conditions.
- the cells were washed 5 times with PBS, and the adhered cells were removed with 100 ⁇ l of 0.1% Triton X-100, and then plated on MRS solid medium. After culturing at 37° C. for 24 hours, the number of colonies on the plate medium was counted to investigate the intestinal fixability of the LMT19-32 strain.
- Table 10 is a view showing the number of Enterococcus faecalis LMT19-32 strain adhered to intestinal epithelial cells. As shown in Table 10, it was confirmed that the novel Enterococcus faecalis LMT19-32 strain of the present invention and the comparative strain Enterococcus faecalis KCTC3206 both had anchoring power to Caco-2, which is about 1% of intestinal epithelial cells.
- Example 3 Evaluation of anti-tumor efficacy of Enterococcus faecalis LMT19-32 strain 1. Induction of tumor model in mice and administration of Enterococcus faecalis LMT19-32 strain
- C57BL/6 mice male, 20-22 g used in the mouse tumor induction model were purchased from Orient Bio, and were acclimatized to the environment for one week before the start of the experiment.
- 2.5 x 10 5 MC38 cells derived from colorectal cancer of C57BL/6 mice were injected into the subcutaneous tissue of the back of the mouse, and groups were separated based on the tumor size (50-70 mm 3 ) one week after the tumor injection.
- the Enterococcus faecalis LMT19-32 strain was orally administered with 1 x 10 9 CFU strain per mouse using a sonde once every two days, and as a positive control, an anti-PD1 antibody (clone number: RMP1- 14, Manufacturer: Bioxcell, Product name: InvivoMAb anti-mouse PD-1) was administered intraperitoneally at an intraperitoneal dose of 10 mg per kg of mouse weight twice a week.
- PBS was orally administered.
- the experimental group consisted of 3 groups of 10 animals in each group, as shown in Table 11.
- Tumor size was measured up to 21 days after injection of the MC38 tumor cell line into mice, and then, the mice were sacrificed using carbon dioxide to extract the tumor, and tumor-infiltrating immune cell analysis was performed.
- the analysis results are shown in Figures 9a, 9b and 9c.
- 9A, 9B and 9C show tumor-infiltrating T cells, CD8 T cells and CD8 T cells expressing IFN ⁇ , that is, IFN ⁇ + CD8 T cells, after administration of Enterococcus faecalis LMT19-32 strain to tumor-bearing mice. shows the results of the analysis.
- the MC38 tumor cell line is mouse colon adenocarcinoma cells induced by subcutaneous injection of dimethylhydrazine into C57BL/6 mice.
- the mouse tumor induction model used in this Example is one in which MC38 tumor cells are transplanted into the subcutaneous tissue
- the effect of the orally administered strain is not directly in contact with the tissue, for example, cancer growth inhibition of the subcutaneous tissue.
- FIGS. 8a and 8b are diagrams showing the results of measuring the tumor size after administration of the Enterococcus faecalis LMT19-32 strain to tumor-bearing mice.
- the dosing was performed according to section 1. Specifically, the size of the tumor was measured twice a week from 7 days after injection of the tumor cell line to 21 days. In order to accurately measure the size of the tumor, the long axis and the short axis of the tumor were measured using a vernier caliper, and the tumor size was calculated using the formula of 'long axis x (short axis) 2 /2'.
- the control group was administered with PBS as a negative control
- aPD1 was administered with an anti-PD1 antibody as a positive control
- LMT19-32 was administered with LMT19-32 as an experimental group.
- 8A graph shows the tumor size according to the number of days after cell injection
- FIG. 8B shows the tumor size on the 21st day after cell injection.
- the horizontal axis represents days after tumor cell administration as days of measuring tumor size.
- the bars indicate the tumor size for each individual on the 21st day after cell injection.
- a statistically significant tumor growth inhibition was observed in the LMT19-32 strain alone administration group.
- CD8 T cells which are tumor-infiltrating immune cells, are important markers of anticancer responses, and interferon gamma and granzyme B, which are secreted by CD8 T cells, are functional cytokines that show the activation ability of immune cells.
- 9a, 9b and 9c show the results of analyzing the CD8 T cells infiltrating the tumors and cytokine secretion by them after administration of the Enterococcus faecalis LMT19-32 strain to tumor-bearing mice. Dosing was performed according to section 1. The tumor was excised 21 days after administration.
- the extracted tumors were separated into single cells using RPMI1640 medium containing 50 ug/ml Liberase and 40 ug/ml DNase I and a cell strainer.
- the isolated cells were stimulated with 50 ng/ml PMA (Phorbol 12-myristate 13-acetate) and 500 ng/ml Ionomycin in RPMI1640 medium containing 10% FBS for 4 hours.
- PMA and ionomycin substances are substances that signal stimulation to activate T cells, and act as the mechanism of activation of T cells by an actual antigen, creating an environment in which an immune response occurs.
- Ionomycin increases PKC (protein kinase C), and in the case of PMA, it synergizes to target CD4 T cells and CD8 T cells by phosphorylating PKC. .
- the cells were stained with the antibodies of Table 12 for immune cell analysis and interferon gamma generation confirmation, and analyzed using CANTO II flow cytometry equipment.
- 9A, 9B, and 9C show the total number of tumor-infiltrating T cells, the number of CD8 T cells in the tumor-infiltrating T cells, and the number of IFN ⁇ expressing cells in the CD8 T cells, respectively.
- the number of tumor-infiltrating T cells and the number of CD8 T cells were significantly increased in the LMT19-32 administration group compared to the PBS treatment group.
- the number of CD8 T cells producing interferon gamma, an activator was also significantly increased in the LMT19-32 treatment group compared to the PBS control group.
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Abstract
Description
| 명칭 | 수탁번호 | 특성 | ||||
| 락테이트/ OD600(g/L) |
β-갈락토시데이제 | D-소르비톨 | D-타가토스 | 메틸-aD-만노피라노시드 | ||
| LMT17-62 | KCTC 14284BP | >3 | + | + | + | + |
| LMT17-74 | KCTC 14285BP | >3 | + | + | + | + |
| LMT15-24 | KCTC 14289BP | >3 | + | + | + | - |
| LMT17-25 | KCTC 14288BP | >3 | + | - | - | - |
| LMT15-4 | KCTC 14290BP | >3 | - | - | - | - |
| LMT17-62 | KCTC13225 | |
| 형태 | 원형 | 원형 |
| 크기 | 0.5 ㎜ | 0.5 ㎜ |
| 색 | 크림색 | 크림색 |
| 불투명도 | 불투명 | 불투명 |
| 융기 | 볼록 | 볼록 |
| 표면 | 매끄러움 | 매끄러움 |
| 호기적 생장 | + | + |
| 혐기적 생장 | + | + |
| 설명 | 표적 | 색 |
| 표면 마커 | CD45 | PE-Cy7 |
| TCRβ | APC-Cy7 | |
| CD4 | PerCP-Cy5.5 | |
| CD8 | Pacific blue | |
| PD1 | APC | |
| 세포내 염색 | IFN-γ | FITC |
| 번호 | 효소 | 항종양 균주 | 대조균주 | ||||||
| No.1 | No.2 | No.3 | No.4 | No.5 | No.1 | No.2 | No.3 | ||
| 1 | 유레이에이제 | - | - | - | - | - | - | - | - |
| 2 | 아르기닌 디히드롤레이제 |
+ | + | + | + | + | + | + | + |
| 3 | 알파-갈락토시데이제 | - | - | - | - | - | + | + | + |
| 4 | 베타갈락토시데이제 | + | + | + | + | - | - | - | - |
| 5 | 베타갈락토시데이제 6-포스페이트 |
- | - | - | - | - | - | - | - |
| 6 | 알파-글루코시데이제 | - | - | - | - | - | - | - | - |
| 7 | 베타글루코시데이제 | - | - | - | - | - | - | - | - |
| 8 | 알파-아라비노시데이제 | - | - | - | - | - | - | - | - |
| 9 | 베타글루코로니데이제 | - | - | - | - | - | - | - | - |
| 10 | N-아세틸-베타 글루코사미니데이제 |
- | - | - | - | - | - | - | - |
| 11 | 만노스 발효 | + | + | + | + | + | + | + | + |
| 12 | 라피노스 발효 | + | - | - | - | - | + | + | + |
| 13 | 글루탐산 디카복실레이제 |
- | - | - | - | - | - | - | - |
| 14 | 알파-푸코시데이제 | - | - | - | - | - | - | - | - |
| 15 | 질산염 환원 | - | - | - | - | - | - | - | - |
| 16 | 인돌 생산 | + | + | + | + | + | + | + | + |
| 17 | 알칼린 포스파타제 | - | - | - | - | - | - | - | - |
| 18 | 아르기닌 아릴아미데이제 | + | + | + | + | + | + | + | + |
| 19 | 프롤린 아릴아미데이제 | - | - | - | - | - | - | - | - |
| 20 | 류실 글리신 아릴아미데이제 |
- | - | - | - | - | - | - | - |
| 21 | 페닐알라닌 아릴아미데이제 |
+ | + | + | + | + | + | + | + |
| 22 | 류신 아릴아미데이제 | - | + | + | + | + | + | + | + |
| 23 | 피로글루탐산 아릴아미데이제 |
+ | + | + | + | + | + | + | + |
| 24 | 티로신 아릴아미데이제 | + | + | + | + | + | + | + | + |
| 25 | 알라닌 아릴아미데이제 | - | - | - | - | - | - | - | - |
| 26 | 글리신 아릴아미데이제 | - | + | + | + | + | + | + | + |
| 27 | 히스티딘 아릴아미데이제 | - | + | + | + | + | + | + | + |
| 28 | 글루타밀 글루탐산 아릴아미데이제 |
- | - | - | - | - | - | - | - |
| 29 | 세린 아릴아미데이제 | - | + | + | + | + | + | + | + |
| 번호 |
탄수화물 |
항종양 균주 | 대조균주 | |||||||
| No.1 | No.2 | No.3 | No.4 | No.5 | No.1 | No.2 | No.3 | |||
| 1 | 글리세롤 | - | + | - | - | - | - | - | - | |
| 2 | 에리트리톨 | - | - | - | - | - | - | - | - | |
| 3 | D-아라비노스 | - | - | - | - | - | - | - | - | |
| 4 | L-아라비노스 | + | + | + | + | + | + | + | + | |
| 5 | D-리보스 | + | + | + | + | + | + | + | + | |
| 6 | D-자일로스 | - | - | - | - | - | - | - | - | |
| 7 | L-자일로스 | - | - | - | - | - | - | - | - | |
| 8 | D-아도니톨 | - | - | - | - | - | - | - | - | |
| 9 | 메틸-bD- 자일로피라노시드 |
- | - | - | - | - | - | - | - | |
| 10 | D-갈락토스 | + | + | + | + | + | + | + | + | |
| 11 | D-글루코스 | + | + | + | + | + | + | + | + | |
| 12 | D-프럭토스 | + | + | + | + | + | + | + | + | |
| 13 | D-만노스 | + | + | + | + | + | + | + | + | |
| 14 | L-소르보스 | - | - | - | - | - | - | - | - | |
| 15 | L-람노스 | - | - | - | + | - | - | + | - | |
| 16 | 둘시톨 | + | - | - | - | - | - | - | - | |
| 17 | 이노시톨 | - | - | - | - | - | - | - | - | |
| 18 | D-만니톨 | + | + | + | + | + | + | + | + | |
| 19 | D-소르비톨 | + | + | + | - | - | - | - | - | |
| 20 | 메틸-aD- 만노피라노시드 |
+ | + | - | - | - | - | - | - | |
| 21 | 메틸-aD- 글루코피라노시드 |
- | - | - | - | - | - | - | - | |
| 22 | N-아세틸글루코사민 | + | + | + | + | + | + | + | + | |
| 23 | 아미그달린 | + | + | + | + | - | + | + | + | |
| 24 | 아르부틴 | + | + | + | + | + | + | + | + | |
| 25 | 에스쿨린 | + | + | + | + | + | + | + | + | |
| 26 | 살리신 | + | + | + | + | + | + | + | + | |
| 27 | D-셀로비오스 | + | + | + | + | + | + | + | + | |
| 28 | D-말토스 | + | + | + | + | + | + | + | + | |
| 29 | D-락토스 | + | + | + | + | + | + | + | + | |
| 30 | D-멜리비오스 | + | + | + | - | + | + | + | + | |
| 31 | D-사카로스 | + | + | + | + | + | + | + | + | |
| 32 | D-트레할로스 | + | + | + | + | + | + | + | + | |
| 33 | 이눌린 | - | - | - | - | - | - | - | - | |
| 34 | D-멜레지토스 | - | + | - | - | - | - | - | - | |
| 35 | D-라피노스 | + | - | + | - | - | + | + | + | |
| 36 | 아미돈 | - | - | - | - | - | - | - | - | |
| 37 | 글리코겐 | - | - | - | - | - | - | - | - | |
| 38 | 자일리톨 | - | - | - | - | - | - | - | - | |
| 39 | 겐티오비오스 | + | + | + | + | + | + | + | + | |
| 40 | D-투라노스 | - | - | - | - | - | - | - | - | |
| 41 | D-릭소스 | - | - | - | - | - | - | - | - | |
| 42 | D-타가토스 | + | + | + | - | - | - | - | - | |
| 43 | D-푸코스 | - | - | - | - | - | - | - | - | |
| 44 | L-푸코스 | - | - | - | - | - | - | - | - | |
| 45 | D-아라비톨 | - | - | - | - | - | - | - | - | |
| 46 | L-아라비톨 | - | - | - | - | - | - | - | - | |
| 47 | 포타슘글루코네이트 | + | + | + | + | - | - | + | - | |
| 48 | 포타슘 2-케토글루코네이트 |
- | - | - | - | - | - | - | - | |
| 49 | 포타슘 5-케토글루코네이트 |
- | - | - | - | - | - | - | - | |
| LMT19-32 | KCTC3206 | |
| 형태 | 원형 | 원형 |
| 크기 | 0.8mm | 0.8mm |
| 색 | 크림색 | 크림색 |
| 투명도 | 불투명 | 불투명 |
| 융기 | 볼록 | 볼록 |
| 표면 | 매끄러움 | 매끄러움 |
| 호기적 생장 | + | + |
| 혐기적 생장 | + | + |
| 번호 | 탄수화물 | LMT19-32 | |
| 24시간 | 48시간 | ||
| 1 | 글리세롤 | + | + |
| 2 | 에리트리톨 | - | - |
| 3 | D-아라비노스 | - | - |
| 4 | L-아라비노스 | - | - |
| 5 | D-리보스 | + | + |
| 6 | D-자일로스 | - | - |
| 7 | L-자일로스 | - | - |
| 8 | D-아도니톨 | - | - |
| 9 | 메틸-bD-자일로피라노시드 | - | - |
| 10 | D-갈락토스 | + | + |
| 11 | D-글루코스 | + | + |
| 12 | D-프럭토스 | + | + |
| 13 | D-만노스 | + | + |
| 14 | L-소르보스 | - | - |
| 15 | L-람노스 | - | - |
| 16 | 둘시톨 | - | - |
| 17 | 이노시톨 | - | + |
| 18 | 마니톨 | + | + |
| 19 | D-소르비톨 | + | + |
| 20 | 메틸 αD-만노피라노시드 | - | - |
| 21 | 메틸 αD-글루코피라노시드 | - | - |
| 22 | N-아세틸글루코사민 | + | + |
| 23 | 아미그달린 | + | + |
| 24 | 아르부틴 | + | + |
| 25 | 에스쿨린 | + | + |
| 26 | 살리신 | + | + |
| 27 | D-셀로비오스 | + | + |
| 28 | D-말토스 | + | + |
| 29 | D-락토스 | + | + |
| 30 | D-멜리비오스 | - | - |
| 31 | D-사카로스 | + | + |
| 32 | D-트레할로스 | + | + |
| 33 | 이눌린 | - | - |
| 34 | D-멜레지토스 | + | + |
| 35 | D-라피노스 | - | - |
| 36 | 아미돈 | - | - |
| 37 | 글리코겐 | - | - |
| 38 | 자일리톨 | - | - |
| 39 | 겐티오비오스 | + | + |
| 40 | D-투라노스 | - | - |
| 41 | D-릭소스(lyxose) | - | - |
| 42 | D-타가토스 | + | + |
| 43 | D-푸코스 | - | - |
| 44 | L-푸코스 | - | - |
| 45 | D-아라비톨 | - | - |
| 46 | L-아라비톨 | - | - |
| 47 | 포타슘 글루코네이트 | + | + |
| 48 | 포타슘 2-케토글루코네이트 | - | - |
| 49 | 포타슘 5-케토글루코네이트 | - | - |
| LMT19-32 | KCTC3206 | |
| MRS (pH 6.8)(세포수/평판) | 3.1x109 | 1.8x109 |
| MRS (pH 2.5) (세포수/평판) | 3.0x101 | 8.5x104 |
| 생존율 (%) | 0.000001 | 0.004670 |
| LMT19-32 | KCTC3206 | |
| 대조군(세포수/평판) | 3.1x109 | 1.8x109 |
| 0.3% 담즙산염(세포수/평판) | 2.9x109 | 1.4x109 |
| 생존율 (%) | 93.0 | 80.2 |
| LMT19-32 | KCTC3206 | |
| 처리 균주 수 (107 CFU) | 1.4 | 1.5 |
| 부착된 균주 수 (104 CFU) | 10.4 | 19.4 |
| 부착률 (%) | 0.75 | 1.26 |
| 그룹 1 | PBS 대조군 |
| 그룹 2 | 항-PD1 항체 처리군 |
| 그룹 3 | 엔테로코커스 패칼리스 LMT19-32 처리군 |
| 설명 | 표적 | 색 |
| 표면 마커 | CD45 | PE-Cy7 |
| TCRβ | APC-Cy7 | |
| CD4 | PerCP-Cy5.5 | |
| CD8 | 퍼시픽 블루(Pacific blue) | |
| 세포내 염색 | IFNγ | FITC |
| Granzyme B | APC |
Claims (21)
- i) 엔테로코커스 패시움(Enterococcus faecium) 종에 속하고;ii) 48 시간 배양 시 미생물 성장 대비 락테이트 생성능(lactate/OD600)이 3 g/L 이상이고;iii) 항종양 활성을 나타내는,세균 균주.
- 제1항에 있어서, 24 시간 배양 시 미생물 성장 대비 락테이트 생성능(lactate/OD600)이 2.5 g/L 초과인 세균 균주.
- 제1항 또는 제2항에 있어서, 10% 이상의 종양 성장 억제율을 나타내는 세균 균주.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 20% 이상의 종양 성장 억제율을 나타내는 세균 균주.
- 제1항 내지 제4항 중 어느 한 항에 있어서, iv) 베타-갈락토시데이제(β-galactosidase) 활성을 갖는 세균 균주.
- 제1항 내지 제5항 중 어느 한 항에 있어서, v) D-소르비톨(D-sorbitol) 분해능을 갖는 세균 균주.
- 제1항 내지 제6항 중 어느 한 항에 있어서, vi) D-타가토스(D-tagatose) 분해능을 갖는 세균 균주.
- 제1항 내지 제7항 중 어느 한 항에 있어서, vii) 메틸-aD-만노피라노시드(Methyl-aD-mannopyranoside) 분해능을 갖는 세균 균주.
- 제1항 또는 제2항 중 어느 한 항에 있어서, 하기 그룹으로부터 선택되는 하나 이상의 것인 세균 균주:수탁번호 KCTC 14284BP로 기탁되어 있는 LMT17-62;수탁번호 KCTC14285BP로 기탁되어 있는 LMT17-74;수탁번호 KCTC 14289BP로 기탁되어 있는 LMT15-24;수탁번호 KCTC 14288BP로 기탁되어 있는 LMT17-25; 및,수탁번호 KCTC 14290BP로 기탁되어 있는 LMT15-4.
- 유효성분으로 제1항 내지 제9항 중 어느 한 항에 따른 세균 균주를 포함하는, 종양을 예방하거나 치료하기 위한 조성물.
- 제10항에 있어서, 경구로 투여하기 위한 조성물.
- 제10항 또는 제11항에 있어서, 세균 균주는 생균 또는 사균인 것인 조성물.
- 제10항 내지 제12항 중 어느 한 항에 있어서, 종양은 고형 암(solid tumor)인 것인 조성물.
- 제10항 내지 제13항 중 어느 한 항에 있어서, 세균 균주를 1×106 CFU 이상으로 포함하는 조성물.
- 제10항 내지 제14항 중 어느 한 항에 있어서, 하나 이상의 다른 치료제와 병용하기 위한 조성물.
- 제15항에 있어서, 치료제는 면역항암제인 것인 조성물.
- 제16항에 있어서, 면역항암제는 면역관문 억제제(immune checkpoint inhibitor)인 것인 조성물.
- 제17항에 있어서, 면역관문 억제제는 PD-1 길항제, PD-L1 길항제, CTLA-4 길항제 또는 이들의 조합인 것인 조성물.
- 제18항에 있어서, 면역관문 억제제는 항-PD-1 항체, 항-PD-L1 항체, 항-CTLA4 항체, 또는 이의 항원-결합 단편으로부터 선택되는 하나 이상의 것인 조성물.
- 제14항 내지 제19항 중 어느 한 항에 있어서, 다른 치료제와 동시에 또는 순차적으로 투여하기 위한 조성물.
- 제1항 내지 제9항 중 어느 한 항에 따른 세균 균주, 또는 제10항 내지 제20항 중 어느 한 항에 따른 조성물을 종양의 예방 또는 치료를 필요로 하는 대상에게 투여하는 단계를 포함하는, 대상에서 종양을 예방하거나 치료하기 위한 방법.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21861934.4A EP4206317A4 (en) | 2020-08-28 | 2021-08-09 | ANTITUMOR BACTERIAL STRAIN AND COMPOSITION AND METHOD USING IT |
| AU2021331730A AU2021331730B2 (en) | 2020-08-28 | 2021-08-09 | Antitumor bacterial strain, and composition and method using same |
| US18/023,492 US20250312393A1 (en) | 2020-08-28 | 2021-08-09 | Antitumor bacterial strain, and composition and method using same |
| CA3193310A CA3193310A1 (en) | 2020-08-28 | 2021-08-09 | Antitumor bacterial strain, and composition and method using same |
| CN202180053703.9A CN116635048A (zh) | 2020-08-28 | 2021-08-09 | 抗肿瘤细菌菌株、以及利用其的组合物和方法 |
| JP2023513753A JP2023539640A (ja) | 2020-08-28 | 2021-08-09 | 抗腫瘍細菌株、並びにそれを利用した組成物及びその方法 |
| JP2025042549A JP2025094054A (ja) | 2020-08-28 | 2025-03-17 | 抗腫瘍細菌株、並びにそれを利用した組成物及びその方法 |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020200109411A KR20220028425A (ko) | 2020-08-28 | 2020-08-28 | 항종양 세균 균주, 및 이를 이용한 조성물 및 방법 |
| KR10-2020-0109411 | 2020-08-28 | ||
| KR10-2020-0123330 | 2020-09-23 | ||
| KR1020200123330A KR102468351B1 (ko) | 2020-09-23 | 2020-09-23 | 항암 활성을 갖는 엔테로코커스 패칼리스 미생물, 그를 포함하는 조성물 및 그를 이용한 암 예방 또는 치료 방법 |
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| PCT/KR2021/010525 Ceased WO2022045637A1 (ko) | 2020-08-28 | 2021-08-09 | 항종양 세균 균주, 및 이를 이용한 조성물 및 방법 |
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| Country | Link |
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| US (1) | US20250312393A1 (ko) |
| EP (1) | EP4206317A4 (ko) |
| JP (2) | JP2023539640A (ko) |
| AU (1) | AU2021331730B2 (ko) |
| CA (1) | CA3193310A1 (ko) |
| WO (1) | WO2022045637A1 (ko) |
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| KR20200054589A (ko) | 2018-11-12 | 2020-05-20 | 대한민국(농촌진흥청장) | 엔테로코커스 패칼리스 kacc 92220p 및 이를 이용한 비피토박테리움 롱검 고함량 치즈 |
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| CN107802653A (zh) * | 2016-09-08 | 2018-03-16 | 潍坊华英生物科技有限公司 | 灭活乳酸菌在防治肿瘤性疾病药物中的应用 |
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- 2021-08-09 EP EP21861934.4A patent/EP4206317A4/en not_active Withdrawn
- 2021-08-09 AU AU2021331730A patent/AU2021331730B2/en active Active
- 2021-08-09 CA CA3193310A patent/CA3193310A1/en active Pending
- 2021-08-09 WO PCT/KR2021/010525 patent/WO2022045637A1/ko not_active Ceased
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| WO2020079021A1 (en) * | 2018-10-15 | 2020-04-23 | Pharmabiome Ag | Consortia of living bacteria useful for treatment of cancer related diseases, particularly graft versus host disease |
| KR20200054589A (ko) | 2018-11-12 | 2020-05-20 | 대한민국(농촌진흥청장) | 엔테로코커스 패칼리스 kacc 92220p 및 이를 이용한 비피토박테리움 롱검 고함량 치즈 |
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| See also references of EP4206317A4 |
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| EP4206317A4 (en) | 2024-11-20 |
| EP4206317A1 (en) | 2023-07-05 |
| US20250312393A1 (en) | 2025-10-09 |
| JP2025094054A (ja) | 2025-06-24 |
| CA3193310A1 (en) | 2022-03-03 |
| AU2021331730B2 (en) | 2025-04-24 |
| AU2021331730A1 (en) | 2023-04-06 |
| JP2023539640A (ja) | 2023-09-15 |
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