Studying heart cell growth in orbit may unlock new treatments
Led by Chunhui Xu, the team utilized the ISS National Laboratory to explore how space-based conditions could improve regenerative therapies targeting heart damage. Their findings, featured in multiple peer-reviewed journals including a recent article in *Biomaterials*, suggest that microgravity may offer unique biological advantages for cardiac cell development. The full story of Xu's research is available in the latest issue of *Upward*, the ISS National Lab's magazine.
Xu's interest in space-based science was sparked by a seminar highlighting microgravity's unexpected influence on cancer cell behavior. Scientists had noted that cancer cells proliferated and survived at higher rates in space, prompting Xu to question whether heart cells might respond similarly. If true, this could address two major obstacles in developing cell-based treatments for heart disease: efficient cell growth and survival.
Initial tests using simulated microgravity yielded promising results, paving the way for two subsequent investigations aboard the ISS. The first mission studied how stem cells transform into heart muscle cells, while the second focused on how these cells mature into more tissue-like structures. Together, these studies offer critical insights into improving the production and functionality of cardiac cells for therapeutic use.
"The space environment provides an amazing opportunity for us to study cells in new ways. Our research on the ISS could allow us to develop a new strategy to generate cardiac cells more efficiently with improved survival when transplanted into damaged heart tissue, which would greatly benefit patients on Earth," Xu explained in the article.
Research Report:Spaceflight alters protein levels and gene expression associated with stress response and metabolic characteristics in human cardiac spheroids
Related Links
International Space Station U.S. National Laboratory
Space Medicine Technology and Systems
