Communications Biology (May 2021)

Cryptic developmental events determine medulloblastoma radiosensitivity and cellular heterogeneity without altering transcriptomic profile

  • Daniel Shiloh Malawsky,
  • Seth J. Weir,
  • Jennifer Karin Ocasio,
  • Benjamin Babcock,
  • Taylor Dismuke,
  • Abigail H. Cleveland,
  • Andrew M. Donson,
  • Rajeev Vibhakar,
  • Kirk Wilhelmsen,
  • Timothy R. Gershon

DOI
https://doi.org/10.1038/s42003-021-02099-w
Journal volume & issue
Vol. 4, no. 1
pp. 1 – 16

Abstract

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Malawsky, Weir et al. compare medulloblastomas that form in mice engineered to express SmoM2, a constitutively active component of the Sonic hedgehog signaling pathway, starting in either neural progenitor or stem cells. Medulloblastomas in the two models show similar bulk transcriptomic profiles, but contain different fractions of tumor stem cells and different myeloid populations, and demonstrate different therapeutic responses.