YAP/TAZ as a Novel Regulator of cell volume

Nicolas A. Perez-Gonzalez, Nash D. Rochman, Kai Yao, Jiaxiang Tao, Minh Tam Tran Le, Shannon Flanary, Lucia Sablich, Ben Toler, Eliana Crentsil, Felipe Takaesu, Bram Lambrus, Jessie Huang, Vivian Fu, Andrew J. Holland, Steven An, Denis Wirtz, Kun Liang Guan, Sean X. Sun

Research output: Contribution to journalArticlepeer-review

Abstract

How mammalian cells regulate their physical size is currently poorly understood, in part due to the difficulty of accurately quantifying cell volume in a high throughput manner. Here, using the fluorescence exclusion method, we demonstrate that the mechanosensitive transcriptional regulators YAP (Yes-associated protein) and TAZ (transcriptional coactivator with PDZ-binding motif) are novel regulators of single cell volume. We report that the role of YAP/TAZ in cell volume regulation must go beyond its influence on total cell cycle duration or the cell shape to explain the observed changes in volume. Moreover, for our experimental conditions, volume regulation by YAP/TAZ is independent of mTOR. Instead, we find YAP/TAZ directly impacts the cell division volume. Based on the idea that YAP/TAZ is a mechanosensor, we find that inhibiting the assembly of myosin and cell tension slows cell cycle progression from G1 to S. These results suggest that YAP/TAZ and the Hippo pathway may be modulating cell volume in combination with cytoskeletal tension during cell cycle progression.

Original languageEnglish (US)
JournalUnknown Journal
DOIs
StatePublished - Jan 23 2019

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • Immunology and Microbiology(all)
  • Neuroscience(all)
  • Pharmacology, Toxicology and Pharmaceutics(all)

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