THROMBOPOIETIN Russian patent published in 2005 - IPC

Abstract RU 2245365 C2

FIELD: medicine, molecular biology, polypeptides.

SUBSTANCE: invention describes homogenous polypeptide ligand mpI representing polypeptide fragment of the formula: X-hTPO-Y wherein hTPO has amino acid sequence of human fragments TPO (hML); X means a amino-terminal amino-group or amino acid(s) residue(s); Y means carboxy-terminal carboxy-group or amino acid(s) residue(s), or chimeric polypeptide, or polypeptide fragment comprising N-terminal residues of amino acid sequence hML. Also, invention relates to nucleic acid encoding polypeptide and expressing vector comprising nucleic acid. Invention describes methods for preparing the polypeptide using cell-host transformed with vector, and antibodies raised against to polypeptide. Invention describes methods and agents using active agents of this invention. The polypeptide ligand mpI effects on replication, differentiation or maturation of blood cells being especially on megacaryocytes and progenitor megacaryocyte cells that allows using polypeptides for treatment of thrombocytopenia.

EFFECT: valuable medicinal properties of polypeptide.

21 cl, 92 dwg, 14 tbl, 24 ex

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RU 2 245 365 C2

Authors

Iton Dehn L.

De Sovazh Frederik Zh.

Dates

2005-01-27—Published

1994-12-28—Filed