Commercial sources of recombinant human GDF15 protein, in particular those purified from mammalian expression, are frequently contaminated with trace amounts of TGFβ and related proteins. These trace contaminants cause misleading experimental results due to the picomolar or even femtomolar EC50s of this family of cytokines. Please be cautious with your source of recombinant GDF15 protein.
Specialist bioactive growth factor protein manufacturer Qkine today announced a new partnership with StemCultures, a life sciences company dedicated to developing innovative reagents that enhance the quality and efficiency of cell growth and differentiation in culture.
The manufacture of cell and gene therapy products and tissue-engineered regenerative medicine products often requires recombinant proteins such as growth factors and cytokines. These are classified as raw or ancillary materials ie. culture media components or reagents that are not intended to be included in the final product.
We've recently fully transitioned to an animal origin-free (AOF) manufacturing process for our recombinant proteins. This shift ensures the highest standards of safety, purity, and sustainability in bioproduction. By eliminating all animal-derived components, including heparin-based purification columns, we’re supporting ethical and cruelty-free biomanufacturing. Learn more about our journey to 100% AOF.
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