Purity of recombinant human Activin A 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.
Recombinant human Activin A (HZ-1138) causes dose-dependent inhibition of proliferation in the Mouse plasmacytoma (MPC-11) cell line. Proliferation of the MPC-11 cell line was assessed using Promega CellTiter 96®. MPC-11 cells were treated with increasing concentrations of recombinant human Activin A for 72 hrs hours before addition of CellTiter96® reagent. The EC50 was determined using a 4-parameter non-linear regression model. The EC50 values range from 0.5-3.5 ng/ml.
Human induced pluripotent cells(iPSCs) were differentiated to definitive endoderm using HumanKine growth factors (Activin A- HZ-1138, bFGF-HZ-1285, BMP-4- HZ-1045, and Wnt3A-HZ-1296). The differentiation was confirmed by detection of expression of FOXA2(Red) and downregulation of pluripotency marker NANOG(yellow), in immunofluorescence