Purity of recombinant human HGF was determined by SDS- polyacrylamide gel electrophoresis. The protein was resolved in an SDS- polyacrylamide gel in reducing and non-reducing conditions and stained using Coomassie blue.

The activity was determined by the dose-dependent stimulation of the proliferation of the monkey epithelial cell line 4MBr-5 using Promega CellTiter96® Aqueous Non-Radioactive Cell Proliferation Assay.

Purity of GMP-grade recombinant human HGF was determined by SDS- polyacrylamide gel electrophoresis. The protein was resolved in an SDS- polyacrylamide gel in reducing and non-reducing conditions and stained using Coomassie blue.

GMP-grade recombinant human HGF (HZ-1084-GMP) stimulates dose-dependent proliferation of the 4MBr-5 Monkey epithelial cell line. Viable cell number was quantitiatively assessed by PrestoBlue Cell Viability Reagent. 4MBr-5 cells were treated with increasing concentrations of recombinant human HGF for 120 hours. The EC50 was determined using a 4- parameter non-linear regression model. Activity determination was conducted in triplicate on a validated bioassay. The EC50 value ranges from 5-25 ng/mL.