Discoveries from human stem cell research in space that are relevant to advancing cellular therapies on Earth.

Stem cell research performed in space has provided fundamental insights into stem cell properties and behavior in microgravity including cell proliferation, differentiation, and regeneration capabilities. However, there is broader scientific value to this research including potential translation of stem cell research in space to clinical applications. Here, we present important discoveries from different studies performed in space demonstrating the potential use of human stem cells as well as the limitations in cellular therapeutics. A full understanding of the effects of microgravity in space on potentially supporting the expansion and/or enhancement of stem cell function is required to translate the findings into clinics.