Purity of recombinant human IL-7 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 IL-7 (HZ-1281) stimulates dose-dependent proliferation of the 2E8 murine B Lymphocyte cell line. Cell number was quantitatively assessed by PrestoBlue® Cell Viability Reagent. 2E8 cells were treated with increasing concentrations of recombinant IL-7 for 120 hours. The EC50 was determined using a 4-parameter non-linear regression model. The EC50 range is 0.1-1.4 ng/mL.

Proteintech IL-7 (HZ-1281) demonstrates 3-fold lower EC50 and equivalent induction of proliferation compared to a leading competitor. Recombinant human IL-7 stimulates dose-dependent proliferation of the 2E8 murine B lymphocyte cell line. Cell number was quantitatively assessed by PrestoBlue® Cell Viability Reagent. 2E8 cells were treated with increasing concentrations of recombinant IL-7 for 120 hours. The EC50 was determined using a 4-parameter non-linear regression model. The EC50 range is 0.1-1.4 ng/mL.