POLYPEPTIDE WITH IL-10-SIMILAR PROPERTY (VARIANT), POLYPEPTIDE CONJUGATE, PHARMACEUTICAL COMPOSITION, METHOD FOR MODULATION OF IMMUNE RESPONSE IN MAMMAL Russian patent published in 2003 - IPC

FIELD: biotechnology, medicine, pharmacy. SUBSTANCE: polypeptide comprises 100 amino acids, not above, and involves the sequence: Thr-X₄-Lys-X₅-Arg-X₆, wherein X₄ and X₅ can mean Met, Ile, Leu, Val; X₆ can mean Asn, Asp, Gln, Glu. Polypeptide shows at least one of the following property: it induces suppression of IL-1β, induces formation of protein by human monocytes, induces hemotaxis migration of CD8⁺-T-lymphocytes, desensitizes CD8⁺-T-cells, inhibits hemotaxis response of human monocytes, it doesn't inhibit expression of molecules of class MHC II on monocytes, it induces formation of IL-4 and reduces formation of α-TNF. Invention relates to pharmaceutical composition for modulation of immune response in mammal and contains polypeptide IL-10 with similar properties. Invention provides the development of agents used for treatment of diseases pathogenesis of that's is associated with alteration of function of immunosuppression mediators. Invention can be used for preparing polypeptide with IL-10-similar properties. EFFECT: improved modulation method, valuable medicinal properties of polypeptide. 40 cl, 13 dwg, 12 ex