Spaceflight accelerates human stem cell aging, researchers find | AI News Digest
Researchers from UC San Diego have found that spaceflight accelerates the aging of human hematopoietic stem and progenitor cells (HSPCs), crucial for blood and immune health. Utilizing AI-driven nanobioreactor systems during SpaceX missions to the ISS, the study revealed that these cells exhibit signs of accelerated aging, including increased DNA damage and telomere shortening. The findings emphasize the impact of space stressors like microgravity and cosmic radiation on cellular aging. Notably, some damage was reversible when cells returned to a healthy environment, suggesting potential rejuvenation strategies. This research not only aids astronaut health but also enhances our understanding of aging and related diseases on Earth.
