Proliferation, but not growth, blocked by conditional deletion of 40S ribosomal protein S6

Siniša Volarević, Mary J. Stewart, Birgit Ledermann, Frederic Zilberman, Luigi Terracciano, Eugenio Montini, Markus Grompe, Sara C. Kozma, George Thomas

Research output: Contribution to journalArticle

286 Scopus citations

Abstract

Because ribosome biogenesis plays an essential role in cell proliferation, control mechanisms may have evolved to recognize lesions in this critical anabolic process. To test this possibility, we conditionally deleted the gene encoding 40S ribosomal protein S6 in the liver of adult mice. Unexpectedly, livers from fasted animals deficient in S6 grew in response to nutrients even though biogenesis of 40S ribosomes was abolished. However, liver cells failed to proliferate or induce cyclin E expression after partial hepatectomy, despite formation of active cyclin D-CDK4 complexes. These results imply that abrogation of 40S ribosome biogenesis may induce a checkpoint control that prevents cell cycle progression.

Original languageEnglish (US)
Pages (from-to)2045-2047
Number of pages3
JournalScience
Volume288
Issue number5473
DOIs
StatePublished - Jun 16 2000

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Proliferation, but not growth, blocked by conditional deletion of 40S ribosomal protein S6'. Together they form a unique fingerprint.

  • Cite this

    Volarević, S., Stewart, M. J., Ledermann, B., Zilberman, F., Terracciano, L., Montini, E., Grompe, M., Kozma, S. C., & Thomas, G. (2000). Proliferation, but not growth, blocked by conditional deletion of 40S ribosomal protein S6. Science, 288(5473), 2045-2047. https://doi.org/10.1126/science.288.5473.2045