| abstract |
FIELD: chemistry. n SUBSTANCE: group of inventions relates to the field of biotechnology. Claimed is a method of purification of a factor, contributing to wound healing, which represents a hepatocyte growth factor (HGF). All stages of purification are carried out in the presence of antithrombin III (AT-III). In accordance with the claimed method carried out are: defrosting of the frozen HGF-containing source and removal of sediment from the defrosted source. After that, the obtained solution, which contains a supernatant and AT-III, is brought in contact with a carrier for affinity chromatography on an immobilised heparin. Then, the solution is separated from the carrier for affinity chromatography. The carrier is brought in contact with a desorption buffer with ionic strength sufficient for HGF desorption. The desorption buffer, containing HGF, AT-III and histidine-rich glycoprotein (HRGP) is collected. Also claimed are wound-healing compositions, which contain HGF, AT-III and/or HRGP, purified by the claimed method. n EFFECT: inventions make it possible to increase step-by-step output of the hepatocyte growth factor, with the hepatocyte growth factor being concentrated in eluate in the presence of AT-III. n 26 cl, 2 tbl, 6 ex |