PNAS study: Glioblastoma organoids grown 40 days on ISS mimic aggressive disease better than on Earth
iScienceLuvr · x · 2026-11-01
A PNAS study grew glioblastoma (GBM) organoids for 40 days aboard the International Space Station, leveraging microgravity to accelerate disease progression and immune dysregulation. Spaceflight-grown organoids showed more uniform morphology and transcriptomic, proteomic, and spatial organization closer to real patients: mesenchymal genes enriched in the core, inflammation-related genes at the periphery—mirroring GBM tumor architecture—and elevated secretion of aggressive-disease proteins like CXCL12 and LOX-1. The authors present this as a working model for "orbital oncology," enabling better drug screening and mechanistic studies than Earth-based cultures.
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