AMSBIO announces the launch of its StemFit Purotein® range of recombinant proteins for cell therapy applications. Continued expansion of cell therapy applications across healthcare and the life sciences is driving a need for clinically applicable ancillary materials. A key requirement is for recombinant proteins, such as growth factors and cytokines. The company claims the StemFit Purotein products are designed and manufactured under a strict animal-free protocol to minimize the risk of virus contamination and ensure high lot-to-lot consistency. The StemFit Purotein range includes recombinant proteins that play key roles in differentiating ES and iPS cells into liver, pancreas, kidney, heart, blood, and immune cells.