WO2021221471A1 - 3차원 배양된 줄기세포로부터 세포외 소포체를 제조하는 방법 - Google Patents
3차원 배양된 줄기세포로부터 세포외 소포체를 제조하는 방법 Download PDFInfo
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Definitions
- the present invention relates to a method for obtaining stem cell-derived extracellular vesicles in high yield through three-dimensional culture of stem cells.
- the extracellular ER is an endoplasmic reticulum with a lipid bilayer structure of various sizes secreted from various eukaryotic cells such as insects, plants, and microorganisms as well as humans and animals. do. Exosomes contain specific molecules, such as proteins, nucleic acids, lipids, and carbohydrates, contained in cells, and serve as information transfer by stably protecting these molecules with a lipid bilayer and delivering them to other cells after secretion.
- exosomes are obtained in a manner that is isolated from a cell culture medium.
- stem cell culture two-dimensional culture is performed.
- a large amount of cells must be cultured, resulting in an increase in cost.
- separating the exosomes from a large amount of cell culture medium in which a large number of cells are cultured requires considerable labor. Centrifugation and tangential flow filtration (TFF) are mainly used for separation and purification of exosomes, but in the case of centrifugation, the applicable capacity is limited, so it is not suitable for separating exosomes from a large amount of cell culture medium.
- TFF tangential flow filtration
- TFF has the advantage of being suitable for mass processing compared to centrifugation, but there are many problems to be solved, such as shear stress and loss of exosomes that occur during the T filtration process.
- shear stress and loss of exosomes that occur during the T filtration process.
- the development of an efficient extraction method capable of obtaining a large amount of exosomes with a small number of cells and a small amount of culture medium is required.
- the present inventors have developed an efficient method for obtaining stem cell-derived extracellular vesicles, specifically mesenchymal stem cell-derived exosomes, which contain various beneficial components and are composed of a lipid bilayer and function as a stable drug delivery system by themselves. For this purpose, research efforts were made diligently. As a result, when three-dimensional culturing of stem cell aggregates provides a physical, biological, and spatial environment similar to in vivo conditions, and at the same time, when TGF- ⁇ (Transforming growth factor beta) superfamily cytokine is added, the By discovering that not only the yield but also the intrinsic immunomodulatory effect of stem cells, such as the therapeutic effect on inflammatory diseases, is remarkably improved, the present invention has been completed.
- TGF- ⁇ Transforming growth factor beta
- an object of the present invention is to provide a method for preparing a stem cell-derived extracellular vesicle.
- Another object of the present invention is to provide a composition for preventing or treating inflammatory or autoimmune diseases comprising the stem cell-derived extracellular vesicles prepared by the above method as an active ingredient.
- the present invention provides a method for producing a stem cell-derived extracellular vesicle (extracellular vesicle) comprising the steps of:
- the present inventors have developed an efficient method for obtaining stem cell-derived extracellular vesicles, specifically mesenchymal stem cell-derived exosomes, which contain various beneficial components and are composed of a lipid bilayer and function as a stable drug delivery system by themselves. For this purpose, research efforts were made diligently. As a result, when three-dimensional culturing of stem cell aggregates provides a physical, biological, and spatial environment similar to in vivo conditions, and at the same time, when TGF- ⁇ (Transforming growth factor beta) superfamily cytokine is added, the It was found that not only the yield but also the intrinsic immunomodulatory effect of stem cells, such as the therapeutic effect on inflammatory diseases, was also remarkably improved.
- TGF- ⁇ Transforming growth factor beta
- extracellular vesicle refers to a vesicle having a lipid bi-membrane structure with a diameter in the range of 30-1,000 nm that is secreted into the extracellular environment through the fusion of polycystic bodies and plasma membranes in various cells.
- the extracellular vesicles prepared by the method of the present invention have an average diameter of 30 - 150 nm, more specifically, have an average diameter of 50 - 120 nm. Extracellular vesicles having a microdiameter in this range are called exosomes.
- stem cell is an undifferentiated cell before differentiation into each cell constituting the tissue, and has the ability to differentiate into a specific cell under a specific differentiation stimulus (environment).
- cells are collectively referred to as Stem cells, unlike differentiated cells in which cell division is stopped, can produce the same cells as themselves by cell division (self-renewal), and when a differentiation stimulus is applied, they can be differentiated into various cells depending on the nature of the stimulus. , it is characterized by the flexibility of differentiation (plasticity).
- the stem cells used in the present invention may be used without limitation as long as they have the characteristics of stem cells, that is, undifferentiated, indefinitely proliferated, and have the ability to differentiate into specific cells, so long as they are capable of inducing differentiation into a tissue to be regenerated.
- the stem cells used in the present invention are mesenchymal stem cells.
- meenchymal stem cells refers to stem cells having multipotency capable of differentiation into adipocytes, osteocytes, chondrocytes, muscle cells, nerve cells, and cardiomyocytes. Mesenchymal stem cells can be identified through their vortex shape and the expression levels of the basic cell surface markers CD73(+), CD105(+), CD34(-), and CD45(-). It also has a control function.
- step (a) is performed by suspension culture of stem cells in a multi-well culture vessel.
- the term “suspension culture” refers to culturing the cells to be cultured in a floating state in a culture medium without fixing them to a substrate or the like. Accordingly, the term “floating culture” is used in the same sense as “3-dimensional culture”. Stem cells, which are adhesion-dependent, cause cell aggregation during suspension culture, and cells floating alone without being included in such aggregation cause apoptosis and die. do. According to the present invention, a cell aggregate having a size according to the size of the well is formed by suspending stem cells in multiple wells having a plurality of wells. Accordingly, the present invention can obtain a large amount of standardized stem cell aggregates having the same size and shape.
- cell aggregate refers to a cell having a three-dimensional structure formed by self-aggregation of cells cultured in an environment such as a floating culture that allows three-dimensional growth rather than a monolayer. means agglomerated mass.
- the cell aggregate produced as a result of the three-dimensional culture provides an environment similar to the in vivo tissue from which stem cells are derived, and may be spherical or non-spherical depending on the size and number of self-assembled cells.
- a spherical cell aggregate is called a spheroid, but the spheroid need not be geometrically perfectly spherical.
- cell culture herein in, in vitro, including the essential element in the growth and proliferation of cells, such as sugar, amino acids, and various nutrients, minerals refers to a mixture for cell growth and proliferation.
- Components that may be additionally included in the cell culture medium are, for example, glycerin, L-alanine, L-arginine hydrochloride, L-cysteine hydrochloride-monohydrate, L-glutamine, L-histidine hydrochloride-monohydrate, L- Lysine hydrochloride, L-methionine, L-proline, L-serine, L-threonine, L-valine, L-asparagine-monohydrate, L-aspartic acid, L-cystine 2HCl, L-glutamic acid, L-isoleucine, L -Leucine, L-phenylalanine, L-tryptophan, L-tyrosine disodium salt dihydrate, i-inositol, thiamine hydrochloride, niacinamide, pyridoxine hydrochloride, biotin, D-pantothenate calcium, folic acid, riboflavin, vitamin B
- the medium for cell culture according to the present invention may be artificially prepared and used, or commercially available ones may be purchased and used.
- Examples of commercially available culture media include IMDM (Iscove's Modified Dulbecco's Medium), ⁇ -MEM (Alpha Modification of Eagle's Medium), F12 (Nutrient Mixture F-12) and DMEM/F12 (Dulbecco's Modified Eagle Medium: Nutrient Mixture) F-12), but is not limited thereto.
- the multi-well culture vessel has a size of 300-500 ⁇ m per well. More specifically, it has a size of 350-450, and most specifically has a size of about 400 ⁇ m.
- the suspension culture is 300 per well in the multi-well culture vessel. - It is made by dispensing 500 cells. More specifically, 350 - 450 cells, most specifically about 400 cells, are dispensed.
- the TGF- ⁇ used in the present invention is TGF- ⁇ 1, TGF- ⁇ 2 or TGF- ⁇ 3, more specifically TGF- ⁇ 3.
- step (b) is performed by orbital shaking culture of the cell aggregate in a suspended state.
- the rotation shake culture is performed at a rotation speed of 50 - 70 rpm. More specifically, it is performed at a rotation speed of 53 - 67 rpm, more specifically 55 - 65 rpm, and most specifically 57 - 63 rpm.
- the method of the present invention further comprises the step of separating the extracellular vesicles from the culture medium obtained in step (b) through a plurality of centrifugation.
- the present invention provides a stem cell-derived extracellular vesicles prepared by the method of the present invention described above.
- the present invention provides a composition for preventing or treating inflammatory or autoimmune diseases comprising the stem cell-derived extracellular vesicles prepared by the method of the present invention as an active ingredient.
- prevention refers to inhibiting the occurrence of a disease or disease in a subject who has never been diagnosed with a disease or disease, but is likely to have the disease or disease.
- the term “treatment” refers to (a) inhibiting the development of a disease, disorder or condition; (b) alleviation of the disease, condition or condition; or (c) eliminating the disease, condition or symptom.
- the composition of the present invention serves to inhibit, eliminate, or alleviate symptoms of various inflammatory or autoimmune diseases caused by excessive or unwanted immune responses by efficiently inhibiting T cell-mediated immune activity. Accordingly, the composition of the present invention may be a composition for treating these diseases by itself, or may be administered together with other pharmacological ingredients having a therapeutic effect on inflammatory or autoimmune diseases and applied as a therapeutic adjuvant for the above diseases. Accordingly, as used herein, the term “treatment” or “therapeutic agent” includes the meaning of “therapeutic adjuvant” or “therapeutic adjuvant”.
- the term “administration” refers to directly administering a therapeutically effective amount of the composition of the present invention to a subject so that the same amount is formed in the body of the subject, and has the same meaning as “transplantation” or “injection”.
- the term “therapeutically effective amount” refers to the content of the composition contained in an amount sufficient to provide a therapeutic or prophylactic effect to an individual to whom the composition of the present invention is to be administered, and includes a “prophylactically effective amount”. it means
- the term “subject” includes, without limitation, humans, mice, rats, guinea pigs, dogs, cats, horses, cattle, pigs, monkeys, chimpanzees, baboons or rhesus monkeys. Specifically, the subject of the present invention is a human.
- the autoimmune disease or inflammatory disease to be prevented or treated with the composition of the present invention is, for example, rheumatoid arthritis, reactive arthritis, type 1 diabetes, type 2 diabetes mellitus, systemic lupus erythematosus, multiple sclerosis, Idiopathic fibroalveolitis, polymyositis, dermatomyositis, localized scleroderma, systemic scleroderma, colitis, inflammatory bowel disease, Sjorgen's syndrome, Raynaud's phenomenon, Bechet's disease, Kawasaki disease (Kawasaki's disease), primary biliary sclerosis, primary sclerosing cholangitis, ulcerative colitis (ulcerative olitis), graft-versus-host disease (GVHD) and Crohn's disease (GVHD) Crohn's disease), but is not limited thereto.
- rheumatoid arthritis reactive arthritis
- type 1 diabetes type 2 diabetes mellitus
- the pharmaceutical composition of the present invention when prepared as a pharmaceutical composition, includes a pharmaceutically acceptable carrier.
- Pharmaceutically acceptable carriers included in the pharmaceutical composition of the present invention are commonly used in formulation, and include lactose, dextrose, sucrose, sorbitol, mannitol, starch, acacia gum, calcium phosphate, alginate, gelatin, calcium silicate, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, syrup, methyl cellulose, methylhydroxybenzoate, propylhydroxybenzoate, talc, magnesium stearate and mineral oil, and the like.
- the pharmaceutical composition of the present invention may further include a lubricant, a wetting agent, a sweetening agent, a flavoring agent, an emulsifying agent, a suspending agent, a preservative, and the like, in addition to the above components.
- a lubricant e.g., a talc, a kaolin, a kaolin, a kaolin, a kaolin, kaolin, kaolin, kaolin, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, sorbitol, a talct, a talct, a talct, a talct, a sorbitol, mannitol, mannitol
- the pharmaceutical composition of the present invention may be administered orally or parenterally, and specifically may be administered orally, intravenously, subcutaneously or intraperitoneally.
- a suitable dosage of the pharmaceutical composition of the present invention is variously prescribed depending on factors such as formulation method, administration method, age, weight, sex, pathological condition, food, administration time, administration route, excretion rate and reaction sensitivity of the patient. can be A preferred dosage of the pharmaceutical composition of the present invention is within the range of 0.001-100 mg/kg for adults.
- the pharmaceutical composition of the present invention is prepared in unit dosage form by formulating using a pharmaceutically acceptable carrier and/or excipient according to a method that can be easily carried out by a person of ordinary skill in the art to which the present invention pertains. or may be prepared by incorporation into a multi-dose container.
- the formulation may be in the form of a solution, suspension, syrup, or emulsion in oil or aqueous medium, or may be in the form of an extract, powder, powder, granule, tablet or capsule, and may additionally include a dispersant or stabilizer.
- the present invention provides a method for preventing or treating inflammation or autoimmune disease, comprising administering to a subject a composition comprising the stem cell-derived extracellular vesicles of the present invention as an active ingredient. .
- peroxyredoxin-4 Peroxiredoxin-4
- Thioredoxin reductase 1 Thioredoxin reductase 1
- prostaglandin G / H synthase 2 prostaglandin G / H synthase 2
- the extracellular vesicles isolated from the mesenchymal stem cells cultured by the method of the present invention show a clear difference in protein expression profile compared to the exosomes obtained by the conventional method.
- the three proteins are significantly higher expressed than the mesenchymal stem cell-derived exosomes to which only the three-dimensional culture was applied without two-dimensional culture or TGF- ⁇ 3 treatment, and by the method of the present invention It can be seen that the composition itself of the obtained exosome also has a novel composition that did not exist in the prior art.
- the term “high expression” refers to a mesenchymal stem cell-derived exosome obtained by a conventional method, not by the method of the present invention, so that the content, secretion or expression level of a specific protein in the exosome can be measured significantly. It means increased, specifically, it means that the content, secretion amount or expression amount increased by 40% or more, more specifically it means an increase of 60% or more, more specifically it means an increase of 80% or more, and most specifically means an increase of more than 100%.
- the extracellular vesicles are HSP90- ⁇ (heat shock protein 90- ⁇ ), neprilysin, T-complex protein 1 (TCP1) subunit- ⁇ , filamine-A (Filamin-A), 40S ribosomal protein S3, myosin-9, transaldolase, Fascin, thioredoxin reductase 1, RUVBL 2 (RuvB-like 2) at least one protein selected from the group consisting of additionally high expression.
- the extracellular vesicles are coronin-1A (Coronin-1A), prolyl 4-hydroxylase subunit ⁇ -2 (Prolyl 4-hydroxylase subunit ⁇ -2) and purine nucleos positive for at least one protein selected from the group consisting of purine nucleoside phosphorylase.
- the three proteins are proteins that are not detected in mesenchymal stem cell-derived exosomes to which only three-dimensional culture is applied without two-dimensional culture or TGF- ⁇ 3 treatment, and the exosomes obtained by the method of the present invention are not at all It can be seen that it has a new protein expression profile.
- the present invention provides a method for producing an extracellular vesicle from a three-dimensional cultured stem cells.
- the method of the present invention can obtain stem cell-derived extracellular vesicles in high yield by orbital shaking culture of stem cell aggregates in the presence of TGF- ⁇ It can be usefully used in the process of mass-producing exosomes that can be made on an industrial scale.
- the exosome obtained by the method of the present invention has significantly improved immunomodulatory function compared to the exosome produced by the conventional method, and can be applied as an excellent therapeutic composition for various inflammatory or autoimmune diseases.
- FIG. 1 is a diagram showing a three-dimensional culturing process of mesenchymal stem cells according to the method of the present invention, showing the embryonic body formation (Fig. 1a) and 3D culture using a rotary stirrer (Fig. 1b), respectively.
- 2 is a diagram showing the yield of exosomes according to each culture condition.
- Figure 3 is a diagram showing the change in PDI value by TGF- ⁇ treatment, it shows that a single peak (one peak) appears in the 3D shaking culture conditions treated with TGF- ⁇ .
- FIG. 4 is a diagram showing the effect of TGF- ⁇ on T cell proliferation.
- Figure 5a is a diagram showing the results of examining the size of the exosomes through dynamic light scattering (DLS) analysis.
- Figure 5b is the result of observing the shape and structure of the exosomes with a transmission electron microscope (TEM).
- Figure 5c shows the results of Western blotting analysis to confirm the expression of CD9, CD63, Flotillin-1 and Alix.
- Figure 5d shows the results of performing the immunophenotyping of the surface of the exosomes through flow cytometry.
- FIG. 6 shows the results of examining the wound healing ability in skin epithelial cells (Keratinocyte, HaCaT) by the exosomes of the present invention.
- FIG. 7 is a diagram showing a protein that is specifically changed in a T-3D-EV sample, which is an exosome obtained by the method of the present invention, among four clusters derived through clustering analysis.
- FIG. 9 is a diagram showing the biological functions of the derived three clusters of proteins and their immune-related characteristics.
- 11 is a gene set enrichment analysis result, showing the enriched gene set, normalized enrichment score (NES) and p-value, respectively.
- FIG. 12 is a diagram showing the gene group enriched in the present invention.
- FIG. 13 and 14 show a protein expressed only in the exosome obtained by the method of the present invention (FIG. 14) and a protein (FIG. 13) that increased or decreased two-fold or more compared to the 3D culture group in the exosome obtained by the method of the present invention. Each picture is listed.
- 15 is a diagram showing the expression pattern of the inflammation-related protein in the exosome obtained by the method of the present invention.
- Example 1 Three-dimensional cell culture of mesenchymal stem cells
- AggreWell TM 400 (STEMCELL Technologies; #34425) containing about 7000 400 ⁇ m-sized microwells per well was treated with F127 solution, and about 400 umbilical cord-derived mesenchymal stem cells per well (Seoul National University Hospital) , Konkuk University Bioethics Committee Approval No.: 001355-201705-BR-181) was seeded to produce uniform spheroids in the range of 120-200 ⁇ m in diameter. After seeding the spheroids in a culture medium containing TGF- ⁇ 3 in a non-adsorption culture dish, shaking culture was performed at 60 rpm and 37° C. with an orbital shaker (INFORS HT Celtron; #69455) for 3 days. . After 3 days, exosomes were isolated from the obtained culture medium.
- PBMCs were isolated using ficoll from blood (Konkuk University Hospital, Konkuk University Bioethics Committee Approval No.: 7001355-201705-BR-181), and after 5 days of culture, CFSE (Carboxyfluorescein succinimidyl ester, Invitrogen; #C34554) was stained with PBMCs and the proliferation of PBMCs was confirmed through flow cytometry. After inducing an inflammatory environment accompanied by proliferation of T cells by treatment with PHA (Phytohaemaglutinin, Sigma; #L1668), the PBMC inhibitory effect of the mesenchymal stem cells itself was set as a positive control.
- PHA Physicalhaemaglutinin
- the size of the exosomes was investigated through dynamic light scattering (DLS) analysis using a Nano Zetasizer (Malvern Instruments, Malvern, UK), and the number of EVs was measured using a nanoparticle tracking analyzer NS300 (Nanosight, Amesbery, UK). and measured.
- the shape and structure of the exosomes were analyzed using a transmission electron microscope (TEM, JEM-1010, Nippon Denshi, Tokyo, Japan) at 80 kV, and as a result of the observation, the shape of the exosomes was cup or spherical (Fig. 5b).
- Exosomes were attached to the grid (Formvar/Carbon 300 Mesh, Copper_FCF300-CU 50/pk), and negative staining was performed using 1% phosphotungstic acid hydrate (sigma, P4006).
- CD9 ab263023, abcam
- CD63 ab134045, abcam
- Flotillin-1 Flotillin-1
- Alix a2171, CST
- the fluorescence intensity generated from the labeled antibody was measured using a flow cytometer (Beckman Coulter, CytoFlex Flow Cytometry Analyzer). As a result, it was confirmed that the fluorescence expression levels of CD9, CD63, and CD81 were more than 96% in the exosomes. Judging that the isolated exosomes expressed 96-98% of the exosome-positive markers, it can be confirmed that the homogeneous exosomes were isolated.
- HaCaT skin epithelial cells
- HaCaT cells were inoculated in a culture dish and grown to 90%, and then a long wound was made using the tip of 1000 ⁇ l.
- a cell culture medium Dulbecco's Modified Eagle's Medium-high glucose, D6429, sigma
- exosomes (1E+10 particles/ml)
- Proteins stained from each gel were prepared and extracted with peptides through in-gel digestion. Specifically, for protein destaining, 50 mM ammonium bicarbonate and 50% acetonitrile were used and a 100% acetonitrile solution was used, and then 50 mM dithiothreitol was used. After reducing the disulfide bond at 37° C. and performing an alkylation reaction under light blocking conditions using 55 mM iodoacetamide, a dehydration process is performed using 100% acetonitrile solution. did. Peptides were prepared using a LysS/trypsin mixed protease dissolved in 50 mM ammonium bicarbonate.
- the extracted peptide was dissolved in 0.1% formic acid and mass spectrometry combined with liquid chromatography (LC) was performed.
- LC liquid chromatography
- Q-Exactive Plus (Thermo, USA) was used, and for liquid chromatography, UltiMateTM 3000 RSLCnano System (Thermo, USA) was used.
- 5 ⁇ l of peptide sample was injected and linked with NanoLC at a flow rate of 250 ⁇ l/min. Analysis was performed with an ion trap mass spectrometer.
- LC is separated for a total of 200 minutes, including 150 minutes gradient of solution A (5% dimethyl sulfoxide, 0.1% formic acid) and solution B (95% acetonitrile, 0.1% formic acid, 5% dimethylsulfoxide).
- the analytical column used was a fused silica capillary column with an inner diameter of 75 ⁇ m, an outer diameter of 360 ⁇ m, and a length of 50 cm filled with C18 (2 ⁇ m, 100 ⁇ ) to separate the peptide mixture.
- the isolated peptide was injected with a mass spectrometer to obtain spectral data.
- Orbitrap MS analysis was performed using the Higher energy collision dissociation (HCD) method, 27% energy level (HCD), after one survey scan (resolution 70,000) with ion trap MS for the range of 350 to 1800 m/z. Twenty MS/MS (resolution 17,500) analyzes were performed using trap MS. The detection of overlapping peptide ions was minimized through the dynamic exclusion option of 20 seconds. The auto gain control target setting of the ion trap was 3E06 for Full MS and 1E5 for FT MS/MS. Qualitative analysis and label-free quantitative analysis were performed on the obtained RAW file using MaxQuant (version 1.6.10.43, https://www.maxquant.org/), a database analysis software based on Andromeda algorithm.
- Cysteine carbamidomethylation was treated as a fixed modification to cysteine, and oxidation to methionine was performed as a variable modification.
- the protein sequence database uses the human SwissProt database published in October 2019, and the MaxLFQ algorithm was used for label-free quantification to derive protein quantification values.
- a heat map, clustering analysis, and principal component analysis were performed on the identified proteome using Perseus (http://www.perseus-framework.org). ClueGO, ShinyGO v0.60, and GSEA programs were used to confirm the characteristics of each cluster protein.
- the protein body was quantified through the label-free quantification method for the change in the protein expression pattern according to each sample, and groups of proteins were classified into four clusters according to the pattern change between the samples. Among the four clusters, proteins that change specifically in the T-3D-EV sample, which are exosomes obtained by the method of the present invention, were selected and shown in FIG. 7 .
- T-3D-EV proteins in the group (3D-EV) and 2D culture group (2D-EV) in which only 3D shaking culture was applied without TGF- ⁇ 3 treatment
- Expression patterns were comparatively analyzed.
- the protein group that specifically changes in T-3D-EV has features such as glycolytic process, wound healing inflammatory response-related connective tissue replacement, platelet formation, pentose phosphate pathway, and oxidation point. and a clear difference was observed from other comparison groups.
- FIG. 9 another comparative analysis of biological characteristics also observed immune-related characteristics in T-3D.
- Gene set enrichment analysis was performed using the GSEA module.
- An enrichment score assigns a prespecified class of genes when the genes included in that set are significantly differentially expressed in a phenotype-consistent manner.
- Normalized enrichment scores were calculated by adjusting enrichment scores for the number of genes in the gene set. Nominal p-values are determined by substituting the sensitivity and resistance markers and recalculating the normalized enrichment score to produce a null distribution.
- 11 shows the results of gene set enrichment analysis in this analysis, in which the enriched gene set, normalized enrichment score (NES) and p-value are presented, the higher the NES and the lower the p-value, the more likely the finding is significant. Big.
- the gene groups enriched in this analysis are shown in FIG. 12 .
- Pairwise comparison between samples was performed to find a protein group that was significantly changed in the group to which TGFb was added.
- the observed proteins increased or decreased more than 2 times in T-3D-EV compared to 3D-EV, and Benjamini-rochberg FDR was selected under two criteria of 0.05 or less.
- ROS as a free radical, induces changes in structure and activity by attacking proteins and DNA, which are macromolecular substances in cells, and thereby is involved in DNA repair, cell cycle regulation, and cell growth/death.
- the thioredoxin system is a representative intracellular defense system that operates to relieve stress induced by ROS, etc., and functions as a ROS scavenger to restore proteins oxidized by free radicals to a reversible oxidation-reduction reaction. It is widely involved in the defense system, acting not only as a cell survival inducer, but also as an anti-apoptotic, anti-inflammatory, and immuno-regulatory factor to control the cell's defense system.
- the expression of COX-2 in T-3D-EV was also high (FIG. 15).
- the inflammatory response is one of the defense responses of biological tissues against external physical and chemical stimuli or bacterial infection, and is a mechanism to repair or regenerate damaged tissues.
- inflammatory cells such as macrophages become inflammatory cells such as nitric oxide (NO), prostaglandin E2 (PGE2), tumor necrosis factor- ⁇ (TNF- ⁇ ), and interleukin-1 ⁇ (IL-1 ⁇ ).
- NO nitric oxide
- PGE2 prostaglandin E2
- TNF- ⁇ tumor necrosis factor- ⁇
- IL-1 ⁇ interleukin-1 ⁇
- COX cyclooxygenase
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Abstract
Description
Claims (16)
- 다음의 단계를 포함하는 줄기세포 유래 세포외 소포체(extracellular vesicle)의 제조 방법:(a) 대상체로부터 분리된 줄기세포를 배양하여 세포 응집체(cell aggregate)를 형성하는 단계; 및(b) 상기 세포 응집체를 TGF-β(Transforming growth factor beta)를 포함하는 배양액에서 3차원 배양하는 단계.
- 제 1 항에 있어서, 상기 줄기세포는 중간엽 줄기세포인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 단계 (a)는 다중 웰(multi-well) 배양 용기에서 줄기세포를 부유 배양(suspension culture)함으로써 수행되는 것을 특징으로 하는 방법.
- 제 3 항에 있어서, 상기 다중 웰(multi-well) 배양 용기는 웰 당 300 - 500μm의 크기를 가지는 마이크로웰 플레이트인 것을 특징으로 하는 방법.
- 제 3 항에 있어서, 상기 부유배양은 상기 다중 웰(multi-well) 배양 용기 내 웰 당 300 - 500개의 세포를 분주함으로써 이루어지는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 TGF-β는 TGF-β3인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 단계 (b)는 상기 세포 응집체를 부유 상태에서 회전 진탕 배양(orbital shaking culture) 함으로써 수행되는 것을 특징으로 하는 방법.
- 제 7 항에 있어서, 상기 회전 진탕 배양은 50 - 70 rpm의 회전속도로 수행되는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 방법은 상기 단계 (b)에서 수득한 배양액으로부터 복수 회의 원심분리를 통해 세포외 소포체를 분리하는 단계를 추가적으로 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 세포외 소포체는 30 - 150 nm의 평균 직경을 가지는 것을 특징으로 하는 방법.
- 제 1 항 내지 제 10 항 중 어느 한 항의 방법으로 제조된 줄기세포 유래 세포외 소포체.
- 제 11 항의 줄기세포 유래 세포외 소포체를 유효성분으로 포함하는 염증 또는 자가면역 질환의 예방 또는 치료용 조성물.
- 제 12 항에 있어서, 상기 자가면역질환 또는 염증성 질환은 류마티스 관절염, 반응성 관절염, 1형 당뇨병, 2형 당뇨병, 전신성 홍반성 낭창, 다발성경화증, 특발성섬유성폐포염, 다발성근염, 피부근염, 국한피부경화증, 전신피부경화증, 대장염, 염증성 장질환, 조르젠신드롬(Sjorgen's syndrome), 레이노현상(Raynaud's phenomenon), 베쳇병(Bechet's disease), 가와사키병(Kawasaki's disease), 원발성담즙성경화증(primary biliary sclerosis), 원발성경화성담관염(primary sclerosing cholangitis), 궤양성대장염(ulcerative olitis), 이식편대숙주병(Graft-versus-host disease, GVHD) 또는 크론병(Crohn's disease)인 것을 특징으로 하는 조성물.
- 퍼옥시레독신-4 (Peroxiredoxin-4), 티오레독신 환원효소 1(Thioredoxin reductase 1) 및 프로스타글란딘 G/H 신타아제 2(prostaglandin G/H synthase 2)로 구성된 군으로부터 선택되는 하나 이상의 단백질을 고발현하는 줄기세포 유래 세포외 소포체(extracellular vesicle).
- 제 14 항에 있어서, 상기 세포외 소포체는 HSP90-β(heat shock protein 90-β), 네프릴리신(Neprilysin), T-복합체 단백질 1(TCP1) 서브유닛-α, 필라민-A(Filamin-A), 40S 리보좀 단백질 S3, 미오신-9, 트랜스알돌라제, 패신(Fascin), 티오레독신 환원효소 1, RUVBL 2(RuvB-like 2)로 구성된 군으로부터 선택되는 하나 이상의 단백질을 추가적으로 고발현하는 것을 특징으로 하는 줄기세포 유래 세포외 소포체.
- 제 14 항에 있어서, 상기 세포외 소포체는 코로닌-1A(Coronin-1A), 프롤일 4-하이드록실레이즈 서브유닛 α-2(Prolyl 4-hydroxylase subunit α-2) 및 퓨린 뉴클레오사이드 포스포릴라아제(purine nucleoside phosphorylase)로 구성된 군으로부터 선택되는 하나 이상의 단백질에 대해 양성인 것을 특징으로 하는 줄기세포 유래 세포외 소포체.
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| AU2021264368A1 (en) | 2022-12-01 |
| CN115485366A (zh) | 2022-12-16 |
| KR102319735B1 (ko) | 2021-11-01 |
| EP4144836A4 (en) | 2024-03-27 |
| JP7513305B2 (ja) | 2024-07-09 |
| CN115485366B (zh) | 2026-03-13 |
| JP2023523995A (ja) | 2023-06-08 |
| AU2021264368B2 (en) | 2024-11-28 |
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