Purity of recombinant human GDNF 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.

GDNF stimulates dose-dependent proliferation of the SH-SY5Y Neuroblastoma cell line. SH-SY5Y cells were treated with increasing concentrations of recombinant GDNF for 72 hours in the presence of 100 ng/mL GFR alpha-1. Viable cell number was quantitatively assessed by PrestoBlue® Cell Viability Reagent. The EC50 was determined using a 4-parameter non-linear regression model. The EC50 range is < 10 ng/mL.

Proteintech GDNF (HZ-1311) demonstrates a greater fold induction of proliferation compared to a leading competitor at an equivalent EC50. GDNF stimulates dose-dependent proliferation of the SH-SY5Y Neuroblastoma cell line. SH-SY5Y cells were treated with increasing concentrations of recombinant GDNF for 72 hours in the presence of 100 ng/mL GFR alpha-1. Viable cell number was quantitatively assessed by PrestoBlue® Cell Viability Reagent. The EC50 was determined using a 4-parameter non-linear regression model. The EC50 range is < 10 ng/mL.

Human induced pluripotent cells(iPSCs) were differentiated to dopaminergic neurons using HumanKine growth factors (GDNF-HZ-1311 and FGF8B- HZ-1103). The differentiation was confirmed by detection of expression of TAU(green), Alpha-Synuclein(red) and Thyrosine hydoxylase(TH)(yellow) in immunofluorescence.(Credits- Credits- Alessandro Bellapianta Johannes Kepler Universitat)