WO2024121037A1 - Utilisation du d-xylose pour stimuler la biosynthèse des glycosaminoglycannes - Google Patents
Utilisation du d-xylose pour stimuler la biosynthèse des glycosaminoglycannes Download PDFInfo
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- WO2024121037A1 WO2024121037A1 PCT/EP2023/084075 EP2023084075W WO2024121037A1 WO 2024121037 A1 WO2024121037 A1 WO 2024121037A1 EP 2023084075 W EP2023084075 W EP 2023084075W WO 2024121037 A1 WO2024121037 A1 WO 2024121037A1
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- xylose
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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
- A23L33/125—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives containing carbohydrate syrups; containing sugars; containing sugar alcohols; containing starch hydrolysates
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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
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/30—Foods or foodstuffs containing additives; Preparation or treatment thereof containing carbohydrate syrups; containing sugars; containing sugar alcohols, e.g. xylitol; containing starch hydrolysates, e.g. dextrin
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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
- A23L33/105—Plant extracts, their artificial duplicates or their derivatives
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- 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
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7004—Monosaccharides having only carbon, hydrogen and oxygen atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
-
- 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
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
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- 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
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/18—Antivirals for RNA viruses for HIV
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Definitions
- the invention relates to a formulation comprising at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides, for use in stimulating the biosynthesis of glycosaminoglycosides.
- canes preferably at least one chosen from heparan sulfate, dermatan sulfate and chondroitin sulfate, in a human patient, by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of said compound.
- said formulation is for use in the prevention or treatment of infections with viruses using syndecans and/or glypicans as cellular receptors, such as S ARS-CoV2 or HIV, or in the prevention or treatment of diabetes. type 2 or insulin resistance.
- the invention also relates to the use of a food supplement composition for oral or nasal intake in healthy subjects to stimulate the biosynthesis of glycosaminoglycans.
- SARS-Cov-2 pandemic which is currently affecting the entire world has proven to be particularly dangerous among the elderly and among smokers, with in particular a high comorbidity among patients already suffering from chronic illnesses, such as diabetes. type 2, cancer cases, chronic respiratory diseases, obesity and hypertension.
- GAGs glycosaminoglycans
- HS heparan sulfate
- D-xylose is only available on the market for carrying out the D-xylose test, during which this molecule is ingested orally to measure intestinal absorption in patients. No other medicinal use has been reported to date.
- the invention thus relates more precisely to new uses of D-xylose or products derived from or containing D-xylose to stimulate the biosynthesis of glycosaminoglycans having D-xylose as the initiating molecule of their chains (heparan sulfates, dermatan sulfates, chondroitin sulfates) and reducing the side effects associated with its use.
- New uses concern the prevention or treatment of virus infections using syndecans and/or glypicans as cellular receptors.
- the invention thus describes uses of D-xylose, its derivatives or products containing D-xylose, made possible by the application of an effective dosage making it possible to limit the side effects of its use for a patient. or a consumer.
- the common inventive concept in the context of this invention is the use of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or -D-xylosides, to increase the synthesis of glycosaminoglycans, in a healthy human, or a patient in anticipation of or affected by virus infections using syndecans and/or glypicans as cellular receptors, preferably said virus being chosen from HSV-1, HSV-2, HPV-16, HPV-31, HVB, HVC, HIV-1, HTLV-1, SARS-CoV-2, HCMV, DENV-1 , and DENV-2, in the treatment of COVID-19, AIDS, type 2 diabetes or insulin resistance.
- the use of these compounds is carried out in such a way as to limit the side effects of its use for a patient or a consumer.
- the invention relates to a formulation comprising at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides, in a physiologically acceptable medium. for use in a human patient in the stimulation of glycosaminoglycan biosynthesis.
- the mechanism of action associated with this formulation is to prevent, through the administration of D-xylose or one of its derivatives, the replication of the virus, and thus reduce the symptoms and biological markers associated with the severity of including viral infection, cough, inflammation, etc. . . . Making the infection benign (asymptomatic).
- D-xylose or one of its derivatives competes with the viral load by binding to the central protein before the viruses, to initiate the production of glycosaminoglycans (heparan sulfate, dermatan sulfate and chondroitin sulfate).
- the invention relates to a formulation comprising between 500 mg and 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D- xylosides, in a physiologically acceptable medium, for use in a human patient in the stimulation of glycosaminoglycan biosynthesis.
- the invention relates to a formulation comprising at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides, for use in a human patient.
- a formulation comprising at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides, for use in a human patient.
- a formulation comprising at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides
- the biosynthesis of glycosaminoglycans is increased by at least 1%, preferably by at least 5%, preferably by at least 10%, preferably by at least 20%, preferably by at least 30%, preferably at least 40%, preferably at least 50%, preferably at least 60%, preferably at least 70%, preferably at least 80% , preferably at least 90%, preferably at least 100%, preferably at least least 150%, preferably at least 200%, preferably at least 500%, preferably at least 1000%.
- said glycosaminoglycan is a sulfated glycosaminoglycan.
- said glycosaminoglycans is at least one chosen from heparan sulfate, dermatan sulfate and chondroitin sulfate.
- said formulation is for use in the prevention or treatment of infection with viruses using syndecans and/or glypicans as cellular receptors, preferably said virus being chosen from HSV-1, HSV-2 , HPV-16, HPV-31, HVB, HCV, HIV-1, HTLV-1, SARS-CoV-2, HCMV, DENV-1, and DENV-2.
- said formulation is for use in the prevention or treatment of SARS-CoV-2 infection.
- said formulation is for use in the prevention or treatment of HIV-1 infection.
- said formulation is for use in the prevention or treatment of COVID-19.
- said formulation is for use in the prevention or treatment of type 2 diabetes.
- said formulation is for use in the prevention or treatment of insulin resistance.
- the number of administrations per day is 1.
- the number of administrations per day is between 2 and 10 administrations.
- the number of administrations per day is 2, or 3, or 4, or 5, or 6, or 7, or 8, or 9, or 10.
- the number of administrations per day can be increased depending on the risk of developing the pathology, or depending on its severity.
- said formulation for use according to the invention is in a form suitable for administration orally, nasally or parenterally.
- the composition is in a form suitable for parenteral administration by subcutaneous, intradermal, intravenous or intramuscular route.
- the composition for oral administration is formulated in the form of capsules, capsules, tablets, effervescent tablets, powders, granules, oral solutions or suspensions.
- the composition for nasal administration is formulated in the form of a solution in the form of an aerosol.
- the composition is in a form suitable for oral administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or PD-xylosides.
- the composition is in a form suitable for oral administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of D-xylose.
- the composition is in a form suitable for parenteral administration by administering between 1 and 10 doses per day of a composition having a mass of 1 g to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides.
- the composition is in a form suitable for parenteral administration by administering between 1 and 10 doses per day of a composition having a mass of 1 g to 10 g of D-xylose.
- the composition is in a form suitable for nasal administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or? -D-xylosides.
- the composition is in a form suitable for nasal administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of D-xylose.
- said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides is d-xylose.
- D-xylose is present in the composition in the form of plant extracts comprising D-xylose.
- said plant extracts are chosen from extracts of honeysuckle, Japanese honeysuckle, green chiretta, red algae, water bindweed, leaves, bark or birch sap, of a species of the genus Artemisia, of rice stalk.
- D-xylose is derived from lignocellulose from plant materials.
- the D-xylose is provided in the form of hydrolysates of hemicellulose from corn stalks.
- the composition further comprises at least one other acceptable active pharmaceutical ingredient and/or at least one excipient and/or at least one acceptable pharmaceutical support and/or any pharmaceutically acceptable compound.
- said at least one other pharmaceutical ingredient is an antiviral active ingredient.
- said at least one other pharmaceutical ingredient is an active ingredient allowing the prevention or treatment of COVID-19.
- said at least one other pharmaceutical ingredient is an active ingredient allowing the prevention or treatment of type 2 diabetes.
- said at least one other pharmaceutical ingredient is an active ingredient allowing the prevention or treatment of insulin resistance.
- the composition further comprises an active ingredient making it possible to accelerate the transfer of said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or [3- D-xylo-sides, preferably D-xylose, towards the cells, preferably said active ingredient being insulin.
- an active ingredient making it possible to accelerate the transfer of said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or [3- D-xylo-sides, preferably D-xylose, towards the cells, preferably said active ingredient being insulin.
- the formulation according to the invention also comprises at least one antibiotic.
- the formulation according to the invention comprises a hormone accelerating the transport of D-xylose or its derivatives in the cell, like insulin or also any pharmaceutical enzymes - chemically acceptable facilitating the transport of D-xylose into the cell, for example xylose transporters.
- the composition according to the invention also comprises a compound making it possible to reduce at least one side effect of taking D-xylose, preferably a compound making it possible to reduce vomiting or diarrhea.
- the composition according to the invention also comprises Vitamin C.
- the invention relates to the use of a food supplement composition for oral or nasal intake in healthy subjects comprising at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or [3-D-xylosides in a physiologically acceptable medium to stimulate the biosynthesis of glycosaminoglycans.
- said glycosaminoglycan is a sulfated glycosaminoglycan.
- said glycosaminoglycans is at least one chosen from heparan sulfate, dermatan sulfate and chondroitin sulfate.
- the invention relates to the use of a food supplement composition for oral or nasal intake in healthy subjects comprising between 500 mg and 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or O-D-xylosides, in a physiologically acceptable medium, in the stimulation of the biosynthesis of glycosaminoglycans.
- a food supplement composition for oral or nasal intake comprising between 500 mg and 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or O-D-xylosides, in a physiologically acceptable medium, in the stimulation of the biosynthesis of glycosaminoglycans.
- said glycosaminoglycan is a glycosaminoglycan sulfate.
- said glycosaminoglycans is at least one chosen from heparan sulfate, dermatan sulfate and chondroitin sulfate.
- said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides is d-xylose.
- the food supplement composition is in a form suitable for oral administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides
- the food supplement composition is in a form suitable for oral administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of D-xylose.
- the food supplement composition is in a form suitable for nasal administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or? -D-xylosides.
- the food supplement composition is in a form suitable for nasal administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of D-xylose.
- the biosynthesis of glycosaminoglycans is increased by at least 1%, preferably by at least 5%, preferably by at least 10%, preferably by at least 20%, preferably by at least 30%, preferably at least 40%, preferably at least 50%, preferably at least 60%, preferably at least 70%, preferably at least 80% , preferably at least 90%, preferably at least 100%, preferably at least 150%, preferably at least 200%, preferably at least 500%, preferably at least 1000%.
- the food supplement is formulated for oral intake in the form of capsules, capsules, tablets, effervescent tablets, powders, granules, oral solutions or suspensions.
- the food supplement for nasal administration is formulated in the form of a solution in the form of an aerosol.
- the food supplement is formulated for oral intake in a food product, a drink, a food additive or a dairy product, containing said food supplement.
- the number of administrations per day is 1.
- the number of administrations per day is between 2 and 10 administrations.
- the number of administrations per day is 2, or 3, or 4, or 5, or 6, or 7, or 8, or 9, or 10.
- the number of administrations per day can be increased depending on the wishes of the consumer.
- D-xylose is present in the food supplement composition in the form of plant extracts comprising D-xylose.
- said plant extracts are chosen from extracts of honeysuckle, Japanese honeysuckle, green chiretta, red algae, water bindweed, leaf, bark or birch sap, of a species of the genus Artemisia, of rice stalk.
- D-xylose is derived from lignocellulose from plant materials.
- the D-xylose is provided in the form of hydrolysates of hemicellulose from corn stalks.
- the food supplement composition according to the invention also comprises Vitamin C.
- the food supplement composition according to the invention also comprises galactose.
- the invention relates to a therapeutic method for stimulating the biosynthesis of glycosaminoglycans comprising the administration to a human patient of between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or? - D-xylosides in a physiologically acceptable medium.
- said glycosaminogly cane is a sulfated glycosaminogly cane.
- said glycosaminoglycans is at least one chosen from heparan sulfate, dermatan sulfate and chondroitin sulfate.
- said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides is d-xylose.
- the biosynthesis of glycosaminoglycans is increased by at least 1%, preferably by at least 5%, preferably by at least 10%, preferably by at least 20%, preferably by at least 30%, preferably at least 40%, preferably at least 50%, preferably at least 60%, preferably at least 70%, preferably at least 80% , preferably at least 90%, preferably at least 100%, preferably at least 150%, preferably at least 200%, preferably at least 500%, preferably at least 1000%.
- said formulation is for use in the prevention or treatment of infection with viruses using syndecans and/or glypicans as cellular receptors, preferably said virus being chosen from HSV-1 , HSV-2, HPV-16, HPV-31, HVB, HCV, HIV-1, HTLV-1, SARS-CoV-2, HCMV, DENV-1, and DENV-2.
- said formulation is for use in the prevention or treatment of SARS-CoV-2 infection.
- said formulation is for use in the prevention or treatment of HIV-1 infection.
- this therapeutic method is in the prevention or treatment of COVID-19.
- this therapeutic method is in the prevention or treatment of type 2 diabetes.
- this therapeutic method is in the prevention or treatment of insulin resistance.
- the number of administrations per day is between 2 and 10 administrations.
- the number of administrations per day is 2, or 3, or 4, or 5, or 6, or 7, or 8, or 9, or 10.
- the number of administrations per day can be increased depending on the risk of developing the pathology, or depending on its severity.
- D-xylose is present in the composition in the form of plant extracts comprising D-xylose.
- said composition according to the invention is in a form suitable for administration orally, nasally or parenterally.
- the composition is in a form suitable for parenteral administration by subcutaneous, intradermal, intravenous or intramuscular route.
- the composition is in a form suitable for oral administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least a compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or? -D-xylosides.
- the composition is in a form suitable for oral administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of D-xylose.
- the composition is in a form suitable for parenteral administration by administering between 1 and 10 doses per day of a composition having a mass of 1 g to 10 g of at least a compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides.
- the composition is in a form suitable for parenteral administration by administering between 1 and 10 doses per day of a composition having a mass of 1 g to 10 g of D-xylose .
- the composition is in a form suitable for nasal administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least a compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides.
- the composition is in a form suitable for nasal administration by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of D-xylose.
- said plant extracts are chosen from extracts of honeysuckle, Japanese honeysuckle, green chiretta, red algae, water bindweed, leaf, bark or birch sap, of a species of the genus Artemisia, of rice stalk.
- D-xylose is derived from lignocellulose from plant materials.
- D-xylose is provided in the form of hemicellulose hydrolysates from corn stalks.
- the composition further comprises an active ingredient making it possible to accelerate the transfer of said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or -D- xylosides, preferably D-xylose, towards the cells, preferably said active ingredient being insulin.
- an active ingredient making it possible to accelerate the transfer of said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or -D- xylosides, preferably D-xylose, towards the cells, preferably said active ingredient being insulin.
- the composition according to the invention also comprises at least one antibiotic.
- the formulation according to the invention comprises a hormone accelerating the transport of D-xylose or its derivatives in the cell, like insulin or also any pharmaceutically oriented enzymes. acceptable facilitating the transport of D-xylose into the cell, for example xylose transporters.
- the composition according to the invention also comprises a compound making it possible to reduce at least one effect secondary to taking D-xylose, preferably a compound to reduce vomiting or diarrhea.
- the composition according to the invention also comprises Vitamin C.
- the invention relates to the use of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides, in a medium physiologically acceptable for the preparation of a medicament used for the stimulation of the biosynthesis of glycosaminoglycans in a human patient.
- the invention relates to the use of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides, for the preparation of 'a medicament used for the stimulation of the biosynthesis of glycosaminoglycans in a human patient, and in which the quantity of administration of said at least one compound is between 500 mg and 10g in a physiologically acceptable medium per administration, the number of administration per day being between 1 and 10 administrations.
- said glycosaminogly cane is a sulfated glycosaminogly cane.
- said glycosaminoglycans is at least one chosen from heparan sulfate, dermatan sulfate and chondroitin sulfate.
- said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or P-D-xylosides is d-xylose.
- said use concerns the preparation of a medicament in the prevention or treatment of infection with viruses using syndecans and/or glypicans as cellular receptors, preferably said virus being chosen from HSV-1 , HSV-2, HPV-16, HPV-31, HVB, HCV, HIV-1, HTLV-1, SARS-CoV-2, HCMV, DENV-1, and DENV-2.
- said use concerns the preparation of a medication in the prevention or treatment of SARS-CoV-2 infection.
- said use concerns the preparation of a medication in the prevention or treatment of HIV-1 infection.
- said use concerns the preparation of a medication in the prevention or treatment of COVID-19.
- said use concerns the preparation of a medication in the prevention or treatment of type 2 diabetes.
- said use concerns the preparation of a medication in the prevention or treatment of insulin resistance.
- the biosynthesis of glycosaminoglycans is increased by at least 1%, preferably by at least 5%, preferably by at least 10%, preferably at least 20%, preferably at least 30%, preferably at least 40%, preferably at least 50%, preferably at least 60%, preferably at least least 70%, preferably at least 80%, preferably at least 90%, preferably at least 100%, preferably at least 150%, preferably at least 200%, of preferably at least 500%, preferably at least 1000%.
- the number of administrations per day is between 2 and 10 administrations.
- the number of administrations per day is 2, or 3, or 4, or 5, or 6, or 7, or 8, or 9, or 10.
- the number of administrations per day can be increased depending on the risk of developing the pathology, or depending on its severity.
- said use concerns the preparation of a medication in a form suitable for administration orally, nasally or parenterally.
- said use concerns the preparation of a medication in a form suitable for parenteral administration by subcutaneous, intradermal, intravenous or intramuscular route.
- said use concerns the preparation of a medication for oral administration in the form of capsules, capsules, tablets, effervescent tablets, powders, granules, oral solutions or suspensions.
- the composition for nasal administration is formulated in the form of a solution in the form of an aerosol.
- said use relates to the preparation of a medication for oral administration, the administration of which is carried out by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or? -D-xylosides.
- said use relates to the preparation of a medication for oral administration, the administration of which is carried out by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of D -xylose.
- said use relates to the preparation of a medication for parenteral administration, the administration of which is carried out by administering between 1 and 10 doses per day of a composition having a mass of 1 g to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or? -D- xylosides,
- said use concerns the preparation of a drug for parenteral administration, the administration of which is carried out by administering between 1 and 10 doses per day of a composition having a mass of 1 g to 10 g of D-xylose.
- said use relates to the preparation of a medication for nasal administration, the administration of which is carried out by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or? -D- xylosides.
- said use relates to the preparation of a medication for nasal administration, the administration of which is carried out by administering between 1 and 10 doses per day of a composition having a mass of 500 mg to 10 g of D-xylose.
- said medicament prepared in the form of a composition further comprises at least one other acceptable active pharmaceutical ingredient and/or at least one excipient and/or at least one acceptable pharmaceutical carrier and/or any pharmaceutically acceptable compound.
- said at least one other pharmaceutical ingredient is an antiviral active ingredient.
- said at least one other pharmaceutical ingredient is an active ingredient allowing the prevention or treatment of COVID-19.
- said at least one other pharmaceutical ingredient is an active ingredient allowing the prevention or treatment of type 2 diabetes.
- D-xylose is present in the composition in the form of plant extracts comprising D-xylose.
- said plant extracts are chosen from extracts of honeysuckle, Japanese honeysuckle, green chiretta, red algae, water bindweed, leaf, bark or birch sap, of a species of the genus Artemisia, of rice stalk.
- the composition comprises a hormone accelerating the transport of D-xylose or its derivatives in the cell, like insulin or also any pharmaceutically oriented enzymes. acceptable facilitating the transport of D-xylose into the cell, for example xylose transporters.
- the composition according to the invention also comprises a compound making it possible to reduce at least one side effect of taking D-xylose, preferably a compound making it possible to reduce vomiting or diarrhea.
- the composition according to the invention also comprises the addition of Vitamin C.
- the composition further comprises an active ingredient making it possible to accelerate the transfer of said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or [3- D-xylosides, preferably D-xylose, towards the cells, preferably said active ingredient being insulin.
- an active ingredient making it possible to accelerate the transfer of said at least one compound chosen from D-xylose, its esters, oligosaccharides comprising D-xylose, and/or [3- D-xylosides, preferably D-xylose, towards the cells, preferably said active ingredient being insulin.
- FIG. 1 presents the results for remdesivir used as a positive control in antiviral tests.
- FIG 3 presents the results of the percentage of inhibition of HIV-1 NL4-3 as a function of the concentration of D-xylose alone with calculation of the median inhibitory concentration (IC50) and the median cytotoxic concentration (TC50) .
- FIG 4 presents the results of the percentage of inhibition of HIV-1 NL4-3 as a function of the concentration of D-xylose + insulin with calculation of the median inhibitory concentration (IC50) and the median cytotoxic concentration (TC50). ).
- FIG 5 presents the results of the percentage of inhibition of HIV-1 NL4-3 as a function of the concentration of AZT (used as a control) with calculation of the median inhibitory concentration (IC50).
- FIG. 10 presents the results of the immunofluorescence test of the 96-well plates in the same arrangement as shown in [Table 11]
- D-xylose is a pentose, present in the bioactive form in the human body, which is also found in nature, in wood bark and in certain plants. This molecule is approved in particular by the FDA in the D-xylose test.
- D-xylose is used at the level of sulfated glycosaminoglycans (GAGs), which are long linear chains made up of units repetitive disaccharides present in the extracellular matrix (ECM), on the surface of endothelial cells, epithelial cells, fibroblasts, macrophages and hepatocytes (RR Vivès, Heparans sulfate: structure, functions, regulation, April 11, 2020).
- GAGs sulfated glycosaminoglycans
- ECM extracellular matrix
- HS heparan sulfates
- Hep heparins
- CS chondroitin sulfates
- DS dermatan sulfates
- KS keratan sulfates
- Sulfated GAGs are linked to a central protein (syndecans, glypicans, decorins, etc.) by a covalent bond, thus forming proteoglycans (PG).
- the main central proteins of PG in the extracellular matrix are perlecan (with HS type chains), agrin (heparan sulfate proteoglycan [HSPG]), aggrecan (chondroitin sulfate proteoglycan [CSPG]/dermatan proteoglycan sulfate [DSPG]) and decorin.
- the central membrane proteins of PG are classified into two categories: syndecans and glypicans.
- Syndecans are transmembrane proteins, unlike glypicans, which are entirely extracellular proteins (fixed to the cell membrane by a glycosyl-phosphatidyl inositol (GPI) type anchor).
- Membrane PGs are HSPGs, CSPGs, and DSPGs, but are mainly HSPGs HSPGs are found on the surface of several types of cells, such as endothelial cells, epithelial cells, fibroblasts and neuronal tissues (R.R. Vivès, Heparans sulfate: structure, functions, regulation, April 11, 2020 & S. . Sarrazin, W.C. Lamanna, J.D. Esko, Heparan sulfate proteoglycans, Cold Spring Biol.
- the basic unit of HS is a D-glucuronic acid linked to N-acetylglucosamine.
- the basic unit of CS is an N-acetylgalactosamine linked to a D-glucuronic acid.
- Hyaluronic acid is the only non-sulfated GAG; this type of glycosaminoglycan is not linked to a core protein.
- the disaccharides which compose it are themselves made up of D-glucuronic acid and DN-acetylglucosamine (RR Vivès, Heparans sulfate: structure, functions, regulation, April 11, 2020).
- the HSPGs are quickly recycled and renewed on the surface of the cell; their half-life is approximately 2-3 h (M. Egeberg, R. Kjeken, S. O. Kolset, T. Berg, K. Prydz, Internalization and stepwise degradation of heparan sulfate proteoglycans in rat hepatocytes, Biochim. Biophys. Acta 1541 (2001) 135—149).
- the degradation of HSPGs on the surface of cells depends on the action of several extracellular and lysosomal enzymes, and in particular on heparanase which cleaves the HS chains (R.R. Vivès, Héparans sulfate: structure, functions, regulation, April 11, 2020 & S. Sarrazin, W.C. Lamanna, J.D. Esko, Heparan sulfate proteoglycans, Cold Spring Biol.
- D-xylose is therefore the element binding these GAGs to the central proteins and has only one position. This role of D-xylose in the biosynthesis of HS/CS/DS/Hep indicates that the quantity of D-xylose in the body directly influences the quantity of these GAGs present in this organism.
- D-xylose derivatives are meant, according to the invention, esters of D-xylose, oligosaccharides comprising D-xylose, and/or P-D-xylosides.
- Type 2 diabetes is a metabolic disease which is often one of the symptoms of certain viral infections, as is the case for SARS-CoV-2, HIV-1, HCV. . . (Cheudjeu 2021).
- T2DM Several explanations for the appearance of T2DM during viral infections have been given, such as: inflammation (cytokine storm) due to infections which cause damage to the P cells of the pancreas, leading to homeostasis insulin.
- inflammation cytokine storm
- insulin supplementation would definitely be sufficient, but this is not always the case.
- This inability of insulin to reduce blood sugar is called insulin resistance (or insulin resistance) and is widely reported during viral infections that use core proteins as receptors on the surface of cells: SARS-CoV-2 (Govender N et al, 2021: PMID: 33849817), HCV (Desai DV et al, 2010: https://doi.Org/10.1096/fasebj.24.
- the present invention describes for the first time how insulin resistance is linked to the ability of D-xylose to stimulate GAGs. Most of the sugars constituting the GAGS chains are glucose metabolites (Cheudjeu 2022). [0170] In the event of insufficient D-xylose in the body (or in the case of certain viral infections), one of the first consequences is an increase in blood sugar.
- a 2011 study showed that sulfated GAGs were altered during type 2 diabetes, with levels of HS and chondroitin and dermatan sulfates (CS/DS) reduced by approximately 14% (D . Joladarashi, P.V Salimath, N.D. Chilkunda, Diabetes results in structural alteration of chondroitin sulfate/dermatan sulfate in the rat kidney: effects on the binding to extracellular matrix components, Glycobiology 21 (2011) 960-972).
- hyaluronic acid hyaluronic acid
- HA hyaluronic acid
- hyaluronic acid levels for type 2 diabetes were higher and that these levels could be used as a biomarker (S. Mine, Y. Okada, C. Kawahara, T. Tabata, Y. Tanaka, Serum hyaluronan concentration as a marker of angiopathy in patients with diabetes mellitus, Endocr.
- a 2010 study also showed that there is an approximately 66% increase in D-glucuronic acid in the blood of people with diabetes compared to people without diabetes. Another consequence is a decrease in the activity of xylosyltransferase enzymes (XYLT1, XYLT2) due to the reduction in xylose attachment positions (caused by the lack of D-xylose or by glycosylation of viruses at these positions). Indeed, Getting et al, in a study involving 100 diabetic patients (Type 1 and Type 2) and 100 blood donations from non-diabetic people, demonstrated that the serum xylosyltransferase of diabetic patients was significantly lower than that of diabetic patients. non-diabetics.
- insulin resistance The inability of insulin to reduce blood sugar is called insulin resistance.
- insulin or insulin resistance
- PG proteoglycan
- the notion of insulin resistance thus reflects an underestimation of the storage capacities (weight) of GAGs containing D-xylose in relation to the storage capacities of hepatic glycogen.
- any insulin supplementation no longer lowers blood sugar levels, thus resulting in the situation known as insulin resistance. Indeed, in this condition, GAGs do not act as “reservoirs” of glucose metabolites, and since the other reservoir (the liver, where glycogen is stored) is full, insulin supplementation will have no effect. effect on blood sugar.
- Glycated hemoglobin or glycosylated hemoglobin is one of the biomarkers of hyperglycemia for diabetes. It is used for assessment, for long-term diabetes control and for diabetes diagnosis.
- the action of D-xylose or xylitol, its direct metabolite, on the level of glycated hemoglobin (HbAlc) has already been the subject of several previous studies, which have shown that taking D-xylose or Xylitol, its metabolite direct effect has almost no or little effect on the level of glycated hemoglobin in a healthy person (Bae Y.J. et al, PMID: 22259678; Bordier Vet al, PMID: 34836205).
- Viruses using syndecans and/or glypicans as cellular receptors (HSV-L HSV-2, HPV-16, HPV-3 L HVB, HVG HIV-L HTLV-L SARS-CoV-2, HCMV DENV-L and DENV-2) and mechanism of action
- Viruses interact with proteoglycans (PGs) on the surface of host cells to attach to them (A. Jinno, et al. Methods Mol. Biol. 1229 (2015) 567-585; V. Cagno, et al. al. Viruses 11 (2019) 596).
- PGs proteoglycans
- GAG glycosaminoglycans
- HS heparan sulfate
- HCV hepatitis C virus
- PTM post-translational modifications
- Formulation indicates the final presentation of a composition, as it will be given to the patient.
- stimulation of the biosynthesis of gycosaminoglycans indicates that the biosynthesis of glycosaminoglycans is greater than what it was before the administration of the formulation or the food supplement according to the invention.
- Glycosaminoglycan is meant the family of molecules resulting from the linear polycondensation of units of osamines and uronic acids (sometimes replaced by galactose), present essentially in the extracellular matrix of connective tissues.
- Glycosaminoglycans may or may not be sulfated. There is a single class of non-sulfated GAGs, hyaluronic acid, but 4 classes of sulfated GAGs: chondroitins-sulfates, dermatans-sulfates, keratans-sulfates and heparans-sulfates/heparins.
- Hyaluronic acid is free in tissues, while sulfated GAGs are attached to carrier proteins (“core proteins”) to form bulky complexes called proteogly canes. GAGs play an important role in tissue hydration and cell signaling.
- core proteins carrier proteins
- GAGs play an important role in tissue hydration and cell signaling.
- Heparan sulfate are designated these complex polysaccharides belonging to the family of glycosaminoglycans (GAGs), present in abundance on the cell surface and in the interstitial matrices.
- This mucopolysaccharide or glycosaminoglycan carries sulfuric residues on the second carbon of iduronic acids and on the sixth carbon of glucosamine, as well as on the amine function in 2.
- This glycan, synthesized in fibroblasts, is a constituent of connective tissue (dermis, aorta), part of the basement membrane, in which it is linked to collagen and laminin.
- glucuronic acid a polysaccharide structure does not contain glucuronic acid, but L-iduronic acid which alternates with N-acetylgalactosamine molecules, forming dihexoside links (L- iduronosido-3-P-N-acetylgalactosamine) attached to the C4 of the iduronic acid of the next link.
- Sulfuric radicals are attached to the C4 of galactosamines.
- dermatan sulfates are part of the glycocoprotein structures, the proteoglycans, of connective tissues, particularly the dermis, cartilage and cornea. Depending on the fabric, the length of the chains varies from 10 to 50 links; they are linked to a polypeptide in the same way as the carbohydrate chains of glycoproteins. These dermatan sulfates are either localized on the external surface of cell membranes, or associated in the form of macromolecular complexes in the extracellular ground substance.
- chondroitin sulfate this sulfated glycosaminoglycan whose polysaccharide structure contains glucuronic acids, which alternate with N-acetylgalactosamine molecules, forming dihexoside links (0-glucuronosido-3-P-N-acetylgalactosamine) attached to C4 glucuronic acid from the next link. Sulfuric radicals are attached to the C4 or C6 of galactosamines. Like most glycosaminoglycans, chondroitin sulfates are part of the glycoprotein structures, proteoglycans, of connective tissues, particularly the dermis, cartilage and cornea.
- the length of the chains varies from 10 to 50 links; they are linked to a polypeptide in the same way as the carbohydrate chains of glycoproteins.
- These chondroitin sulfates are located either on the external surface of cell membranes, or associated in the form of macromolecular complexes in the extracellular ground substance.
- esters of D-xylose are meant esters in the sense of the term well known to those skilled in the art, of d-xylose.
- said ester is the acid D-gal acturonic.
- esters of fatty acids comprising from 16 to 24 carbon atoms, in particular esters of natural fatty acids.
- esters of palmitic, stearic, oleic, linoleic, linolenic, arachidonic, erucic and lignoceric acids will advantageously be chosen.
- oligosaccharides containing D-xylose are meant holosides consisting of a small number of oses (2, 3, 4, 5, 6), comprising d-xylose.
- oligosaccharide within the meaning of the invention we mean sugar chains containing 2 to 6 sugars.
- the oligosaccharide containing xylose among the oligosaccharides as defined above comprises at least one xylose and from 1 to 6 sugars.
- Such oligosaccharides are advantageously chosen from xylobiose, xylobiose hexaacetate, methyl-P-xylobioside, xylotriose, xylotetraose, xylopentaose and xylohexaose.
- xylobiose is the oligosaccharide is used, which is composed of two xylose molecules linked by a 1-4 bond as well as xylobiose acetates such as xylobiose hexaacetate.
- human patient is meant a human individual suffering from a pathology or at risk of being affected by a pathology, and whose prevention or treatment is necessary.
- health subject is meant a human individual not suffering from a pathology, and therefore not requiring treatment.
- number of administrations is meant the number of times the administration is carried out, for example per day, to the patient or healthy subject of the formulation or food supplement according to the invention.
- acceptable active pharmaceutical ingredient is meant an active medicinal substance known to have a particular therapeutic effect.
- antiviral active is meant according to the invention a compound known for its properties of eliminating viruses, in particular viruses mentioned in the context of the invention.
- active ingredient allowing the prevention or treatment of type 2 diabetes is meant according to the invention a compound known for its properties for preventing or treating type 2 diabetes.
- active ingredient allowing the prevention or treatment of insulin resistance is meant according to the invention a compound known for its properties for preventing or treating insulin resistance.
- antibiotic is meant according to the invention a compound which acts either by preventing the development of bacteria (bacteriostatic antibiotics) or by killing them (bactericidal antibiotics).
- dose is meant a unit of intake of the formulation or food supplement according to the invention.
- day is meant the hourly unit of 24 hours starting at OOhOO and ending at 11:59 p.m.
- proteogly canes are glycoproteins composed of a central protein also called “carrier protein” or “core protein” to which one or more chains of sulfated glycosaminoglycans are attached, generally linked by an saccharide bond to the alcohol functions of certain amino acids serine or occasionally threonine of the protein.
- carrier protein or core protein
- SLRP Mal Leucin-Rich Proteoglycans
- 2-large extracellular proteoglycans some of which are capable of aggregating with hyaluronic acid to form very large complexes allowing tissue hydration and shock absorption; the main ones are versican and aggrecan;
- 4-proteoglycans of the cell membrane which play an important role in cell signaling and promote the action of cytokines and growth factors.
- This class consists of syndecans, whose carrier protein is transmembrane, and glypicans, for which the carrier protein is anchored to the cell surface;
- serglycin present in the intracellular granulations of mast cells and macrophages, which carries heparin chains, a major anticoagulant.
- proteoglycan being an important constituent of the membranes of certain cells such as the sinusoidal membranes of hepatocytes, muscle cells, and macrophages.
- Syndecans form a family of transmembrane molecules whose extracellular domain is glycan, and having an intracellular end in the cytoplasm. Syndecans are involved in the internalization of atherogenic lipoproteins.
- glycopican is meant the proteoglycan for which the carrier protein is anchored to the surface of the cell.
- HSV-1 is the simple Herpes virus type 1.
- HSV-2 is the Herpes simplex virus type 2.
- HPV-16 human papillomavirus 16.
- HPV-31 is human papillomavirus 31.
- HVB is the hepatitis B virus.
- HCV is the hepatitis C virus.
- HIV-1 or HIV-1 is the human immunodeficiency virus.
- HTLV-1 is the human T-lymphotropic virus 1 virus.
- SARS-CoV-2 is the virus associated with COVID-19.
- HCMV is the human cytomegalovirus
- DENV-1 is the dengue virus in its first serotype.
- DEDENV-2 is the dengue virus in its second serotype.
- oral administration or gastrointestinal or per os route (Latin expression which means “by mouth”) is meant the route of administration for enteral destination, which consists of swallowing them through the mouth.
- nasal administration is meant according to the invention the route of administration of drugs to the nose and nasal cavities.
- parenteral administration is meant the route of administration by means of an injection, through skin intrusion.
- subcutaneous route is meant a continuous or discontinuous injection of into the subcutaneous tissue (hypodermis).
- injection route is meant an injection into the skin between the epidermis and the dermis.
- intravenous route is meant an injection into a vein.
- intramuscular route is meant an injection into a muscle.
- the term “prevent” or “prevention” indicates a reduction in the risk of developing severe forms of said pathologies.
- the term “treat” or “treatment” means the alleviation of symptoms associated with a specific disorder or condition and/or the elimination of said symptoms.
- active ingredient making it possible to accelerate the transfer of said at least one compound to the cells is meant a molecule making it possible to facilitate access to said at least compound chosen from D-xylose, its esters, oligosaccharides comprising D -xylose, and/or the? -D-xylosides, preferably D-xylose, to target cells thanks to its own action.
- said active ingredient is insulin.
- a suitable form is meant a galenic form allowing the proper administration of the formulation or food supplement according to the invention, allowing the active substance to reach the most targeted organ. quickly and as best as possible.
- food supplement is meant according to the invention a product capable of providing a nutritional benefit.
- This supplement can be taken alone or formulated with other compounds in order to make the composition more attractive to consume by being more similar to a common food product.
- This supplement may be a contributing factor in preventing or reducing any superficial visceral pain problem that does not require therapeutic treatment.
- the composition according to the invention comprises a “physiologically acceptable medium”, that is to say compatible with oral, nasal or parenteral administration.
- the medium used presents compounds allowing the non-degradation of d-xylose or its derivatives, and presenting no risk for the patient or the consumer likely to dissuade him from using this composition, or no risk which could cause harmful side effects.
- Example 1 Test of the antiviral and cytotoxic activity of a compound against SARS-CoV2 following two methods of administration
- the administration (preincubation) of D-xylose 6 hours before the introduction of the virus aims to confirm that the antiviral properties of D-xylose with respect to SARS-CoV-2 are linked to the stimulation action.
- HS, CS, DS of D-xylose That is to say, to confirm that the action of D-xylose on the cell is transposable to other viruses using core proteins as receptors.
- the cells (Vero E6) were used, with two methods of administration: either at the same time or 6 hours before infection with SARS-CoV2 (isolated early).
- the aim of this study is to test the antiviral and cytotoxic properties of 8 concentrations of D(+)-Xylose, against an early isolate of SARS-CoV2, when the compound is administered at the same time or 6 hours before infection. .
- the reading for this assay is CPE, so the infection will be stopped at 72 hpi (time post-infection), and the compound will remain for the duration of the experiment.
- the cytotoxicity of the same compound concentrations will be tested in the absence of viral infection.
- CPE MTT assay
- composition is filtered and sterilized through a 0.22 pM filter.
- the “infection medium + diluent” is prepared by adding 1,680 ⁇ l of water to 18,320 ⁇ l of infection medium.
- the plate is incubated at 37°C, 5% CO2 for 48 hours.
- the plate is incubated at 37°C, 5% CO2 for 6 hours.
- the plate is incubated for 48 hours, or when the CPE is clear.
- D-xylose should inhibit the binding of SARS-CoV-2 by competitive inhibition
- this first experiment carried out by VRS we deliberately chose to keep the concentrations of D-xylose used to stimulate GAGs in the literature, to confirm that just like heparin, D-xylose which stimulates the biosynthesis of GAGs (HS/CS/DS/Hep) has antiviral properties, which therefore contradicts the interpretation according to which HS promotes SARS-CoV-2 infection.
- D-xylose which is a small bioactive molecule, does not contain sulfate and stimulates the biosynthesis of GAGs by their initiation.
- Example 2 In vitro test of the antiviral and cytotoxic activity of a compound alone or in combination with a second compound against HIV-1 (HIV-1), [0326] Three other tests were carried out by the VIROLOGY RESEARCH laboratory SERVICES (VRS) of London to study the Cytotoxicity of D-xylose alone at concentrations higher than that of the first tests (Example 1), the cytotoxicity of D-xylose + Insulin also and the antiviral activities of D-xylose alone and D- xylose + insulin against HIV-1.
- VIROLOGY RESEARCH laboratory SERVICES (VRS) VIROLOGY RESEARCH laboratory SERVICES
- HIV- 1 Human immunodeficiency virus type 1 (HIV-1) NL4-3, RSV stock 31220 (9.4x105 lU/ml)
- the wells of columns 1 to 6, 10 and 11 contain infection medium + diluent while wells 7, 8, 9 and 12 contain infection medium without diluent (diluent for AZT control not taken into account ).
- the stock of AZT is 10 mM in DMSO.
- test samples 2 times Serially dilute the test samples 2 times by moving 120 ⁇ l from row A (wells 1 to 6) to H, mixing 10 times.
- Example 1 Just as for Example 1, the fact that D-xylose has antiviral activities against HIV-1 NL4-3 confirms the interest in focusing on the biosynthesis of glycosaminoglycans, in particular heparan sulfate, chondroitin sulfate. and dermatan sulfate, of which D-xylose is a proven biosynthesis stimulator to fight against HIV-1 NL4-3.
- the HeLa Tzmbl cell line is an immortal human epithelial cell line derived from a cancerous tumor of the cervix (adenocarcinoma).
- the question that may arise is whether D-xylose and/or other xylosides stimulate glycosaminoglycans for all cell types, including epithelial cells, such as the cells used here.
- D-xylosides including D-xylose, are proven stimulators of glycosaminoglycans of several cell types: fibroblasts, keranocytes (epithelial cells), CHO: Chinese hamster ovary cells (epithelial cells), BHK: baby hamster kidney cells, BAE : bovine aortic endothelial cells, 3T3 cells from Swiss mice transformed by SV40, mesenchymal cells, mesenchymal cartilaginous cells, rat glial cells, mouse neuroblastoma (C1300, NB41 A), rat liver cells (HTC, H4). . .
- Example 3 Summary of the tests (Examples 1 and 2) carried out by the VRS Laboratory in London and conclusions
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| WO1994005678A1 (fr) * | 1992-09-02 | 1994-03-17 | The Uab Research Foundation | Amorces de biosynthese de sulfate d'heparane |
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2022
- 2022-12-05 FR FR2212766A patent/FR3142656B1/fr active Active
-
2023
- 2023-12-04 EP EP23817731.5A patent/EP4629844A1/fr active Pending
- 2023-12-04 WO PCT/EP2023/084075 patent/WO2024121037A1/fr not_active Ceased
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