Nature Communications (Jun 2022)

Glutamine deficiency in solid tumor cells confers resistance to ribosomal RNA synthesis inhibitors

  • Melvin Pan,
  • Christiane Zorbas,
  • Maki Sugaya,
  • Kensuke Ishiguro,
  • Miki Kato,
  • Miyuki Nishida,
  • Hai-Feng Zhang,
  • Marco M. Candeias,
  • Akimitsu Okamoto,
  • Takamasa Ishikawa,
  • Tomoyoshi Soga,
  • Hiroyuki Aburatani,
  • Juro Sakai,
  • Yoshihiro Matsumura,
  • Tsutomu Suzuki,
  • Christopher G. Proud,
  • Denis L. J. Lafontaine,
  • Tsuyoshi Osawa

DOI
https://doi.org/10.1038/s41467-022-31418-w
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 14

Abstract

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Small molecules that target RNA Polymerase I inhibit ribosome biogenesis to activate p53 through the nucleolar surveillance response pathway. Here, the authors show that p53 induction by ribosome stress is dependent on extracellular glutamine availability.