Glycolipid mixture with antiinflammatory acivity obtained...

A - Human Necessities – 61 – K

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A61K 31/739 (2006.01) A61K 35/74 (2006.01) A61P 37/00 (2006.01)

Patent

CA 2752961

It was observed that a highly purified preparation of polar glycolipids extracted from cells of the cyanobacterium Oscillatoria Plank- tothrix is characterized by the presence of at least one species of high molecular weight glycolipid comprising one or more units of rhamnose. In such mixture, having a level of nucleic acid contamination lower than (or equal to) 3%, an inhibitory activity toward ATP synthase (ATP-SX) was identified which is capable of decreasing the level of extracellular ATP and thereby the extent of the inflammatory response. The glycolipid mixture is especially useful in inflammation induced by ischemic stimuli, cancer or autoimmune diseases (such as multiple sclerosis, inflammatory bowel dis-ease (Crohn's disease, ulcerative colitis), psoriasis, rheumatoid arthritis, di- abetes, autoimmune thyroiditis, systemic lupus erythematosus), in addition to systemic inflammatory states such as systemic inflammatory syndrome (SIRS), sepsis, vasculitis, or in localized inflammatory states, such as neu- rodegenerative diseases or asthma.

On a observé qu'une préparation hautement purifiée de glycolipides polaires extraits de cellules de la cyanobactérie Oscillatoria Planktothrix est caractérisée par la présence d'au moins une espèce de glycolipide de poids moléculaire élevé comprenant une ou plusieurs unités de rhamnose. Dans ce mélange, qui présente un niveau de contamination d'acide nucléique inférieur (ou égal) à 3%, on a identifié une activité inhibitrice à l'encontre de l'ATP synthase (ATP-SX) qui est capable de réduire le niveau d'ATP extracellulaire et donc d'étendre la réponse inflammatoire. Le mélange glycolipidique est particulièrement utile pour traiter une inflammation induite par des stimuli ischémiques, le cancer ou des maladies auto-immunes (telles que la sclérose en plaques, une maladie intestinale inflammatoire (la maladie de Crohn, la colite ulcérative), le psoriasis, la polyarthrite rhumatoïdale, le diabète, la thyroïdite auto-immune, le lupus érythémateux disséminé), auxquels s'ajoutent des états inflammatoires systémiques, tels que le syndrome inflammatoire systémique (SIRS), une sepsie, une angéite, ou dans des états inflammatoires localisés, tels que les maladies neurodégénératives ou l'asthme.

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