1. Simple and effective serum-free medium for sustained expansion of bovine satellite cells for cell cultured meat
- Author
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Stout, Andrew J., Mirliani, Addison B., Rittenberg, Miriam L., Shub, Michelle, White, Eugene C., Yuen Jr., John S. K., and Kaplan, David L.
- Subjects
Meat ,low-cost serum-free media (B8) ,Medicine (miscellaneous) ,satellite cell expansion ,Cell Differentiation ,Culture Media, Serum-Free ,General Biochemistry, Genetics and Molecular Biology ,Myoblasts ,cultivated meat ,serum-free media ,cultured meat ,cellular agriculture ,Animals ,Cattle ,bovine satellite cells ,recombinant albumin ,General Agricultural and Biological Sciences ,serum ,Beefy-9 ,Cell Proliferation - Abstract
Cell-cultured meat offers the potential for a more sustainable, ethical, resilient, and healthy food system. However, research and development has been hindered by the lack of serum-free media that enable the robust expansion of relevant cells (e.g., muscle satellite cells) over multiple passages. Recently, a low-cost serum-free media (B8) was described for pluripotent stem cells. Here, B8 is adapted for bovine satellite cells through the addition of a single component, recombinant albumin, which renders it suitable for long-term satellite cell expansion without sacrificing myogenicity. This new media (Beefy-9) maintains cell growth over the entire period tested (seven passages), with an average doubling time of 39 h. Along with demonstrated efficacy for bovine cells, Beefy-9 offers a promising starting-point for developing serum-free media for other meat-relevant species. Ultimately, this work offers a foundation for escaping cultured meat research’s reliance on serum, thereby accelerating the field.
- Published
- 2022