EP4415733A1 - Combinaison d'e. faecalis et d'un agent anti-inflammatoire et ses utilisations dans la prevention et/ou traitement des maladies respiratoires - Google Patents
Combinaison d'e. faecalis et d'un agent anti-inflammatoire et ses utilisations dans la prevention et/ou traitement des maladies respiratoiresInfo
- Publication number
- EP4415733A1 EP4415733A1 EP22802942.7A EP22802942A EP4415733A1 EP 4415733 A1 EP4415733 A1 EP 4415733A1 EP 22802942 A EP22802942 A EP 22802942A EP 4415733 A1 EP4415733 A1 EP 4415733A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cncm
- strain
- faecalis
- inflammatory
- combination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
Definitions
- the invention relates to the combination of at least one bacterial strain of the species Enterococcus faecalis and an anti-inflammatory agent, a composition comprising them and its uses as a medicament, in particular for preventing and /or treat respiratory diseases.
- corticosteroids are in particular based on broad-spectrum immunity modulators, such as corticosteroids. These are certainly very effective as a one-time treatment, but can lead to deleterious side effects when taken regularly. For example, inhaled corticosteroids can cause growth retardation in children, suppression of the hypothalamic-pituitary-adrenal axis and an increased risk of osteoporosis. In addition, some patients refractory to corticosteroids receive high doses causing severe side effects such as metabolic disorders or an increased risk of cardiovascular disease (De ludicibus et al. Molecular mechanism of glucocorticoid resistance in inflammatory bowel disease. World J Gastroenterol 2011. 17: 1095-108; Ora et al. Advances with glucocorticoids in the treatment of asthma: state of the art. Expert Opin Pharmacother 2020. 21: 2305-2316).
- An objective of the present invention is therefore to provide a solution which is simple, effective and economical for reducing the doses of anti-inflammatory treatment necessary and/or for increasing their effectiveness and thus preventing and/or treating respiratory diseases. .
- the inventors have identified that the combination of an active ingredient based on bacteria of the species Enterococcus faecalis (hereinafter E. faecalis) and another active ingredient based on anti-inflammatory agents, preferably glucocorticoids, induce a synergistic effect making it possible to reduce the doses of useful glucocorticoid administered to a patient, including patients refractory to glucocorticoids.
- E. faecalis Enterococcus faecalis
- anti-inflammatory agents preferably glucocorticoids
- the inventors have thus observed that the strains alone at an MOI of 10 (i.e. 10 E. faecalis cells for 1 eukaryotic cell) or that low-dose budesonide (0.1 nM) did not induce an effect, in vitro, on the release of interleukin-8 (IL-8) induced by Tumor Necrosis Factor (TNF)-a on human cells of pulmonary origin BEAS-2B.
- MOI 10 E. faecalis cells for 1 eukaryotic cell
- 0.1 budesonide 0.1 nM
- the combination of glucocorticoids and E. faecalis bacteria is thus of particular interest in reducing the useful concentration of glucocorticoids used in first intention.
- the invention is therefore particularly suitable for patients suffering from chronic inflammatory diseases and preferentially exhibiting resistance to corticosteroids.
- the invention relates to the combination of two active principles, that is to say at least one bacterial strain of the species E. faecalis (i) and an anti-inflammatory agent (ii) for its use as a medicament in humans. or the animal.
- the invention also relates to the culture supernatant obtained from one of the bacterial strains of E. faecalis and combined with an anti-inflammatory agent.
- the invention relates particularly to a composition
- a composition comprising the combination of at least one bacterial strain of the species E. faecalis (and/or its supernatant) (i) and an anti-inflammatory agent ( ii) and at least one acceptable excipient (iii).
- Said acceptable excipient preferably being a pharmaceutically acceptable excipient in the case of a product intended to be used as a medicament for human use or veterinary use.
- the composition is then a pharmaceutical composition comprising a strain of E. faecalis and an anti-inflammatory agent and at least one pharmaceutically acceptable excipient.
- the invention is thus particularly suitable for using said combination or said composition according to the invention as a medicament.
- the present invention is useful in the prevention and / or treatment of inflammatory diseases, in particular respiratory diseases, more particularly chronic such as allergy, asthma, chronic obstructive pulmonary disease (COPD), or rhinitis allergic.
- respiratory diseases more particularly chronic such as allergy, asthma, chronic obstructive pulmonary disease (COPD), or rhinitis allergic.
- COPD chronic obstructive pulmonary disease
- rheumatoid arthritis or inflammatory bowel disease (ICI), such as Crohn's disease or ulcerative colitis
- ICI inflammatory bowel disease
- secondary inflammation caused by a primary infection, for example bacterial, parasitic but also viral such as influenza, infant bronchiolitis, or SARS (Severe Acute Respiratory Syndrome).
- Figure 1 shows the dose-effect of budesonide on BEAS-2B cells.
- FIG. 2 shows the in vitro effect of the E. faecalis and budesonide combination on BEAS-2B cells.
- BEAS-2B cells were co-incubated with TNF-a (lpg/ml) alone or with a strain of E. faecalis (CNCM 1-4969; 1-5701; 1-5699) MOI 10:1, and/or 0.1nM budesonide, or 0.5nM budesonide. After 6 h of incubation, the concentration of IL-8 was measured in the supernatant by ELISA. The levels of IL-8 are expressed as a percentage of the level of IL-8 induced by a 6 h stimulation with TNF- ⁇ .
- Figure 3 represents the ex vivo effect of the combination E. faecalis CNCM 1-4969 and budesonide on the explants of mouse lungs.
- Explants of mouse lungs were cultured alone with E. faecalis (CNCM 1-4969) 50 CFU, and/or 0.1 nM budesonide, or 0.5 nM budesonide.
- bacteria within the meaning of the invention, is meant a unicellular microorganism capable of reproducing by cell division. Bacteria are classified by family, genus, species. Each bacterial species includes a diversity of bacterial strains. The bacterial strain according to the invention belongs to the Enterococcaceae family, to the genus Enterococcus and the species faecalis.
- bacterial strain or “strain” within the meaning of the invention, we therefore mean a specific bacterial strain but also all the bacteria derived from the strain or obtained from the strain or corresponding to the bacterial strain and having the same metabolic functions, for example, at least one bacterium taken from a colony derived from the strain.
- bacterial strain according to the invention also means one of the strains deposited under the number CNCM 1-4969 on April 14, 2015 at the National Collection of Microorganism Cultures (CNCM), 25 rue du Dondel Roux, 75724 Paris Cedex 15 , France, but also under the number CNCM 1-5701 and CNCM 1-5699 deposited on June 16, 2021 at the National Collection of Microorganism Cultures (CNCM), 25 rue du Dondel Roux, 75724 Paris Cedex 15, France as well as the strains derived.
- derived strain within the meaning of the invention, is meant a bacterial strain having a strong similarity with one of the bacterial strains deposited under the number CNCM I-4969, or CNCM 1-5701 or CNCM 1-5699 .
- the derived strain comprises a nucleotide sequence having at least 99% identity of ANI with the nucleotide sequence of the chromosome of at least one of the strains CNCM 1-4969, or CNCM 1-5701 or CNCM 1-5699, plus preferentially, at least 99.91%, at least 99.92%, at least 99.93%, at least 99.94%, at least 99.95%, at least 99.96%, at least 99.97% , at least 99.98%, at least 99.99% identity of ANI with the nucleotide sequence of the chromosome of one of the strains CNCM 1-4969, or CNCM 1-5701 or CNCM 1-5699.
- ANI means in the sense of the invention the average percentage identity of the nucleotides calculated from the two-by-two comparison of all the chromosomal sequences of the two bacterial strains.
- the genomic DNA can be extracted from a pure bacterial culture derived from said strain of interest, followed by the sequencing of the DNA using various well-known methods, for example Sanger, Roche 454, Illumina, Oxford Nanopore, then the genome is sequenced and assembled by bioinformatics and the sequences obtained are analyzed. Finally, the sequences of Chromosomes of interest are compared two by two to calculate the ANI.
- the culture supernatant of the bacterial strain according to the invention optionally comprising cellular compounds of said strain and / or cellular debris of said strain, and / or metabolites and/or molecules secreted by said strain.
- Human within the meaning of the invention means a human patient.
- Said human patient can belong to any age group, i.e. the patient can be an infant, a baby, a child, an adolescent or an adult. It is known that children, babies, infants and the elderly are more susceptible to respiratory diseases, especially asthma.
- humans are resistant and/or refractory to treatments with corticosteroids, for example budesonide.
- patient resistant and/or refractory to treatment with corticosteroids is meant, within the meaning of the invention, a patient to whom a treatment based on corticosteroids is administered, who does not respond to said treatment, that is that is, the patient does not observe a reversal of the progression of the inflammation or a reversal or regression of the progression of the disease.
- prevention within the meaning of the invention, is meant the reduction to a lesser degree of the risk or the probability of occurrence of a given phenomenon, that is to say, in the context of the present invention of inflammation, preferably respiratory diseases, for example asthma.
- treatment within the meaning of the invention, is meant a reduction in the progression of the disease, a stabilization, a reversal or regression, or even an interruption or inhibition of the progression of the inflammation, preferentially of respiratory diseases , for example asthma. In the context of the invention, these terms also apply to one or more symptoms of said diseases of the present invention.
- respiratory disease within the meaning of the invention, here is meant diseases of the respiratory system or causing breathing disorders.
- acceptable excipient within the meaning of the invention is meant any compound making it possible to facilitate the shaping of the composition and not modifying the nature of the biological activity of the active principle.
- An acceptable excipient can be a solvent, buffer, saline solution, plasticizer, lubricant, dispersing medium, agents delaying absorption, flow agent, isotonic agent.
- it is a pharmaceutically excipient acceptable which are chosen according to the pharmaceutical form and the desired mode of administration, from the usual excipients known to those skilled in the art and suitable for human and/or veterinary use. The excipient will thus be chosen according to the route of administration, for example suitable for oral, intravenous, intramuscular, topical administration, etc.
- spontaneous administration means both administration in the form of a single pharmaceutical formulation combining the two active principles, E. faecalis and an anti-inflammatory agent such as a corticosteroid, and separate administration two separate pharmaceutical formulations each containing one of the two active ingredients taken simultaneously or at very short intervals (maximum approximately 1 hour).
- the present invention therefore consists of a new product which combines two active ingredients, hereinafter referred to as the combination according to the invention, on the one hand strains of E. faecalis and on the other hand an anti-inflammatory agent, in particular a corticosteroid, thus making it possible to potentiate the anti-inflammatory effect of the corticosteroid and to reduce its useful concentration and thus reduce the undesirable effects in patients.
- an anti-inflammatory agent in particular a corticosteroid
- the present invention therefore relates to a combination comprising at least one bacterial strain of the species Enterococcus faecalis (i) and at least one anti-inflammatory agent (ii) for its use as a medicament in humans or animals.
- the inventors have previously discovered and isolated bacterial strains of E. faecalis from mouse lungs, human faeces or cheeses, for which the inventors have identified anti-inflammatory properties.
- E. faecalis is an enterococcus which occurs naturally in the digestive tract of humans and animals. It is notably responsible for nosocomial infections and can cause bacteraemia, endocarditis, as well as infections of the urinary tract, prostate or epididymis.
- a multilocus genomic typing (MLST) method based on the analysis of the nucleotide sequence of 7 loci ( ⁇ 3 kb out of 3.5 Mb) of the core genome, has made it possible to define more than 1000 genomic types (ST for Sequence type ) (Ruiz-Garbajosa 2006; Neumann 2019). The STs then possessing at least 6 alleles on the 7 loci are considered as belonging to the same Clonal Complex (CC). Finally, next-generation sequencing has made it possible to develop a method for genomic typing at the genome scale (cgMLST for core genome multilocus sequence typing) which, for E. faecalis, uses 1972 loci, i.e. more than half of the genome (Neumann 2019), which made it possible to confirm the previous data obtained with MLST genotyping.
- cgMLST for core genome multilocus sequence typing which, for E. faecalis, uses 1972 loci, i.e. more than half of the genome (Neumann 2019), which made it possible to confirm the previous data
- said strains of the species E. faecalis preferentially belong to the CC40 or CC21 genomic group.
- said strain present in the combination according to the invention comprises a 16S rRNA sequence of SEQ ID NO:1.
- the strain is chosen from the strain deposited under the number CNCM 1-4969, CNCM 1-5701 and CNCM 1-5699.
- the CNCM 1-5699 strain belongs to the Clonal Complex 21, more particularly to the ST21 genomic types and has a chromosome of 2843733 bp (base pair).
- Strain CNCM 1-5701 and strain CNCM 1-4969 both belong to Clonal Complex 40, respectively to genomic type ST284 and ST40, and their chromosome has 2982831 bp and 3056663 bp respectively.
- the bacterial strain or optionally the mixture of bacterial strains present in the combination according to the invention can be in any form producing the expected effects and the efficacy described in the present application.
- the strain can be in living form (cultivable or not), dead, semi-living, attenuated or inactivated.
- semi-living is meant a bacterium with low physiological activity whose ability to proliferate is reduced, temporarily or permanently.
- inactivated designates a bacterium which is no longer capable, temporarily or permanently, of proliferating.
- dead designates a bacterium which is no longer capable, definitively, of proliferating.
- Dead or inactivated bacteria may have intact or ruptured cell membranes.
- inactivated also designates the extracts and lysates of bacteria obtained. It is particularly advantageous to use such forms in the pharmaceutical compositions of the invention.
- the combination according to the invention comprises a bacterium of E. faecalis and/or the culture supernatant obtained from one of the bacterial strains of E. faecalis according to any of the embodiments described above.
- the combination comprises a supernatant
- this can be obtained from one of the strains deposited under the number CNCM 1-4969, CNCM 1-5701 and CNCM 1-5699 or from a mixture of several strains of 'E. faecalis, preferably from a mixture of the strains deposited under the number CNCM 1-4969, CNCM 1-5701 and CNCM 1-5699.
- the combination according to the invention comprises at least one bacterial strain and/or a culture supernatant according to one of the embodiments described above, and an anti-inflammatory agent.
- the anti-inflammatory agent is preferably a corticosteroid type agent.
- the anti-inflammatory agent is a corticosteroid, this is preferably budesonide.
- Corticosteroids designate both hormones synthesized by the adrenal glands and anti-inflammatory drugs.
- the term relates to anti-inflammatory drugs.
- These are synthetic hormones used in therapy for their anti-inflammatory properties. They can be effective in the short term, medium term and longer term in the treatment of inflammatory and/or autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus and certain respiratory disorders.
- the combination of E. faecalis and the anti-inflammatory agent is intended to be administered simultaneously or spread over time as a drug.
- compositions preferably a pharmaceutical composition.
- the invention relates to a composition
- a composition comprising the combination according to the invention and at least one acceptable excipient, preferably a pharmaceutically acceptable excipient.
- the composition may optionally comprise a physiologically acceptable medium, that is to say a medium which is compatible with the microorganism but also the body of the individual to whom said composition is to be administered. It can be, for example, a non-toxic solvent such as water, buffer, saline solutions. In particular, said medium is compatible with oral administration.
- a physiologically acceptable medium that is to say a medium which is compatible with the microorganism but also the body of the individual to whom said composition is to be administered. It can be, for example, a non-toxic solvent such as water, buffer, saline solutions.
- said medium is compatible with oral administration.
- the composition comprises at least one bacterial strain of the species E. faecalis, preferably chosen from the strain deposited under the number CNCM 1-4969, CNCM 1-5701, CNCM 1-5699 and their mixture; and/or the culture supernatant obtained from said strains and at least one acceptable excipient and/or a physiologically acceptable medium.
- composition according to the invention may comprise, in addition to the combination according to the invention, at least one additional compound.
- the additional compound can be an ingredient, a molecule, a third active principle, a microorganism, a bacterium or a mixture of bacteria.
- composition according to the invention is in any form acceptable for administration to a patient, preferably a human or animal (non-human) patient.
- a patient preferably a human or animal (non-human) patient.
- the composition according to the invention is also aimed at veterinary uses.
- composition can be in any suitable form.
- the composition according to the invention may be in a form chosen from a powder, powder to be nebulized, microencapsulated powder, microencapsulated powder to be nebulized, capsule, capsule, tablet, pastille, granules, solution, solution to be nebulized, emulsion, emulsion nebuliser, suspension, nebuliser suspension, ampule, suppository, inhaler and a syrup, more preferably in the form of an inhaler such as a nebuliser device.
- the composition according to the invention is in solid, liquid or freeze-dried form, more preferably liquid capable of being nebulized or solid in powder form.
- composition When the composition is in liquid form, it comprises the anti-inflammatory agent and at least one bacterial strain according to the invention and/or derived strain and/or a physiologically acceptable culture medium for said bacteria, which allows them to be store, such as, for example, BHI medium, or an equivalent medium containing no product derived from animal origin.
- the anti-inflammatory agent and the bacterial strains according to the invention and/or the derived strain may be present in lyophilized form, and may also comprise excipients such as for example microcrystalline cellulose, lactose, sucrose, fructose, levulose, starches, stachyose, raffinose, amylum, calcium lactate, magnesium sulphate, sodium citrate, calcium stearate, polyvinylpyrrolidone, maltodextrin, galactooligosaccharides, fructooligosaccharides, pectins, beta-glucans, lactoglobulins, isomaltooligosaccharides, polydextroses, mannitol, sorbitol, glycerol, silica dioxide, magnesium stearate, cysteine, mannose, galactose, anhydrous glucose, glucose monoydrate and/or mixtures thereof.
- excipients such as for example microcrystalline cellulose, lac
- the composition according to the invention is in a form suitable for oral, nasal, parenteral, rectal, sublingual, ocular, auricular, intramuscular, intravenous, inhaled or cutaneous administration, more preferably by nasal or inhaled route. using a nebulizer.
- the composition may comprise 0.05 mg to 4 mg per day, preferably from 0.25 mg to 4 mg per day.
- the composition may comprise from 0.1 mg to 4 mg per day, preferably from 0.5 mg to 4 mg per day.
- the composition may comprise from 0.05 mg to 2 mg per day, preferably from 0.25 mg to 2 mg per day.
- the composition comprises at least 10 3 colony-forming units (CFU) of bacteria per daily dose of composition to be administered, preferably from 10 4 to 10 9 CFU, more preferably from 10 5 to 10 7 CFU .
- CFU colony-forming units
- this corresponds to a daily dose of bacteria to be administered, regardless of the weight of the person or the animal.
- this dose is administered all at once.
- the useful composition then comprises at least 10 3 , preferably from 10 4 to 10 9 CFU of bacteria per daily dose to be administered, even more preferably from 10 5 to 10 7 CFU.
- Said bacteria are a mixture of bacteria corresponding to or derived from one of the strains according to the invention, including the derived strains.
- CFU Cold Forming Unit
- UFC Cold Forming Unit
- the daily dose is measured per gram or milliliter of the composition according to the final invention.
- the composition according to the invention comprises a mixture of live bacteria or not, said mixture comprising at least live bacteria
- the composition preferably comprises at least 1% of live bacteria (in number) , more preferentially, at least 10% of living bacteria (by number), even more preferentially at least 50% of living bacteria (by number).
- the live bacteria are a mixture of bacteria corresponding to one of the strains according to the invention, including the derived strains, preferentially belonging to the Clonal Complex CC40 or CC21, more preferentially a strain having a 16S RNA sequence of SEQ ID NO:1.
- the composition according to the invention including it may in particular comprise a content of it between 0.1 and 99% by weight. , in particular from 5 to 95% by weight, in particular from 10 to 90% by weight and more particularly from 15 to 85% by weight, relative to the total weight of the composition.
- a composition according to the invention may comprise a content of between 0.1 and 99% by weight, in particular from 5 to 95%, in particular from 10 to 90% by weight, more particularly from 15 to 85% by weight, of supernatant relative to the total weight of the composition.
- the composition When the composition is intended for therapeutic use, the composition comprises at least one pharmaceutically acceptable excipient, the composition according to the invention is then a pharmaceutical composition.
- pharmaceutically acceptable excipient here means an excipient whose administration to an individual is not accompanied by significant deleterious effects.
- Pharmaceutically acceptable excipients are well known to those skilled in the art.
- the invention also relates to a pharmaceutical composition
- a pharmaceutical composition comprising the ingredient(s) included in the composition according to the invention and according to any of the embodiments described above.
- Said pharmaceutical composition is a medicine.
- the invention relates to a pharmaceutical kit comprising at least an E. faecalis strain, preferably the CNCM 1-4969 or CNCM 1-5701 or CNCM 1-5699 strain or their mixture and a co rti co steroid preferably budesonide, for simultaneous administration or spread over time.
- E. faecalis strain preferably the CNCM 1-4969 or CNCM 1-5701 or CNCM 1-5699 strain or their mixture
- a co rti co steroid preferably budesonide
- the E. faecalis strain and the co rti co steroid such as budesonide can be present in the form of a single pharmaceutical formulation combining the two active principles 1) E. faecalis and 2) the corticosteroid, or else two distinct formulations each comprising one of the active principles (thus allowing simultaneous or sequential administration).
- asthma asthma
- bronchitis including infectious and eosinophilic bronchitis, chronic obstructive pulmonary disease (COPD), such as COPD (chronic obstructive pulmonary disease), cystic fibrosis, pulmonary fibrosis including cryptogenic fibrosing alveolitis, fibrosis idiopathic lung disease, idiopathic interstitial lung disease, fibrosis complicating antineoplastic therapy and chronic infection, including tuberculosis and aspergillosis and other fungal infections; vasculitis and thrombotic disorders of the pulmonary vascular system and pulmonary arterial hypertension; antitussive activity including the treatment of chronic cough associated with inflammatory and secretory diseases of the airways and iatrogenic cough
- composition according to the invention also targets respiratory pathologies having "immune deregulations" common with those observed in asthma, such as the induction of certain cytokines (IL-6, TSLP, IL-8, IL-5, IL-13, IL-17) and mucosal dysregulations (hyper production of mucus) and changes in the bronchial epithelium.
- cytokines IL-6, TSLP, IL-8, IL-5, IL-13, IL-17
- mucosal dysregulations hyper production of mucus
- the uses of the composition according to the present invention encompass the prevention and treatment of chronic respiratory diseases, for example asthma, COPD and rhinitis. Even more particularly, the uses of the composition according to the present invention relate to the prevention and treatment of asthma.
- the use of the strain of the invention and the composition comprising it can therefore be used in particular effectively to prevent the onset of asthma in patients known for their predisposition for this pathology (for example, patients with a family predisposition to the development of asthma).
- the composition according to the invention is also useful in a disease chosen from Crohn's disease, ulcerative colitis, ulcerative colitis - hemorrhagic, diverticulitis, esophagitis, gastritis, pancreatitis, peptic ulcer and irritable bowel syndrome.
- composition according to the invention is of particular interest when humans or animals are resistant and/or refractory to corticosteroids.
- the combination or the composition according to the invention can be produced by any means well known to those skilled in the art.
- the strain according to the invention is produced by culture, for example, in a growth medium known to those skilled in the art (for example, a BHI medium: “Brain-Heart Infusion”) from 8 hours to 3 days, at a temperature of 30-37°C, with or without pH adjustment.
- a BHI medium “Brain-Heart Infusion”
- the fermentation broth containing the bacterial cells is collected.
- the broth can be used as is, concentrated or freeze-dried.
- the bacteria will be collected, for example by centrifugation then resuspended in a suitable buffer, for example PBS (“phosphate buffered saline”).
- Bacterial concentration can be established using a flow cytometer or other equivalent method.
- the bacteria can then be nebulized from the liquid form or the freeze-dried form.
- a solvent may be added to facilitate nebulization.
- Example 1 Minimum dose of budesonide alone on BEAS-2B cells.
- Budesonide is a corticosteroid with in vitro and in vivo anti-inflammatory properties and is used in humans, in particular in the treatment of asthma.
- BEAS-2B Human bronchial cells
- TNF- ⁇ TNF- ⁇
- the BEAS-2B cells then respond by releasing IL-8 into the medium.
- the IL-8 assay after 6 h makes it possible to estimate the state of cell activation, which can be reduced by adding an anti-inflammatory agent.
- the inventors have thus identified a dose of budesonide which induces little or no anti-inflammatory effect in the BEAS-2B model, namely 0.1 nM.
- Example 2 In vitro anti-inflammatory effects of the combination according to the invention.
- the inventors then sought to test the effects of the combination according to the invention, namely E. faecalis and budesonide, on the BEAS-2B model.
- the strains are, initially, added alone.
- the 3 strains CNCM 1-4969, CNCM 1-5701 and CNCM 1-5699 at an MOI of 10:1 show no effect on the release of IL-8 induced by TNF-a ( Figure 2), at like the O.lnM dose of budesonide.
- the effect of the combination of budesonide 0.1nM and CNCM 1-4969 or CNCM 1-5701 causes an inhibition of 30%, whereas budesonide alone and CNCM 1-4969 or CNCM I-5701 alone do not have of effect thus demonstrating a synergy of action of the combination according to the invention with respect to budesonide or E. faecalis administered alone (FIG. 2).
- the inhibition with a 5 times higher dose of budesonide alone is 50%.
- Example 3 Test of the ex vivo anti-inflammatory effects of the combination according to the invention.
- the inventors continued their work on the potentiating effect of f. faecalis in a more complex model of axenic mouse lung explants in ex vivo culture. These explants have a basal production of different cytokines, which can be modified by the presence of immunomodulatory elements.
- the combination according to the invention makes it possible to obtain an anti-inflammatory effect greater than that obtained with a dose 50 times higher of budesonide alone, again demonstrating the synergistic effect of the combination according to the invention (FIG. 3).
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- Pulmonology (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2110973A FR3128117A1 (fr) | 2021-10-15 | 2021-10-15 | Combinaison d’E . faecalis et d’un agent anti-inflammatoire et ses utilisations dans la prévention et/ou traitement des maladies respiratoires |
| PCT/EP2022/078576 WO2023062159A1 (fr) | 2021-10-15 | 2022-10-13 | Combinaison d'e. faecalis et d'un agent anti-inflammatoire et ses utilisations dans la prevention et/ou traitement des maladies respiratoires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4415733A1 true EP4415733A1 (fr) | 2024-08-21 |
Family
ID=79019048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22802942.7A Pending EP4415733A1 (fr) | 2021-10-15 | 2022-10-13 | Combinaison d'e. faecalis et d'un agent anti-inflammatoire et ses utilisations dans la prevention et/ou traitement des maladies respiratoires |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240342227A1 (fr) |
| EP (1) | EP4415733A1 (fr) |
| FR (1) | FR3128117A1 (fr) |
| WO (1) | WO2023062159A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2621588A4 (fr) * | 2010-09-27 | 2014-09-03 | Microdose Therapeutx Inc | Procédés et compositions pour le traitement de maladie en utilisant l'inhalation |
| BR112019014958A2 (pt) * | 2017-01-24 | 2020-04-14 | Flagship Pioneering Innovations V Inc | composições e métodos relacionados para controlar doenças transmitidas por vetores |
-
2021
- 2021-10-15 FR FR2110973A patent/FR3128117A1/fr not_active Withdrawn
-
2022
- 2022-10-13 WO PCT/EP2022/078576 patent/WO2023062159A1/fr not_active Ceased
- 2022-10-13 US US18/701,057 patent/US20240342227A1/en active Pending
- 2022-10-13 EP EP22802942.7A patent/EP4415733A1/fr active Pending
Non-Patent Citations (1)
| Title |
|---|
| PLAZA-D�AZ JULIO ET AL: "Evidence of the Anti-Inflammatory Effects of Probiotics and Synbiotics in Intestinal Chronic Diseases", NUTRIENTS, vol. 9, no. 6, 28 May 2017 (2017-05-28), CH, pages 555, XP093347013, ISSN: 2072-6643, DOI: 10.3390/nu9060555 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3128117A1 (fr) | 2023-04-21 |
| US20240342227A1 (en) | 2024-10-17 |
| WO2023062159A1 (fr) | 2023-04-20 |
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