Asymmetric cancer cell division regulated by AKT

Ipsita Dey-Guha, Anita Wolfer, Albert C. Yeh, John Albeck, Revati Darp, Eduardo Leon, Julia Wulfkuhle, Emanuel F. Petricoin, Ben S. Wittner, Sridhar Ramaswamy

Research output: Contribution to journalArticle

77 Scopus citations

Abstract

Human tumors often contain slowly proliferating cancer cells that resist treatment, but we do not know precisely how these cells arise. We show that rapidly proliferating cancer cells can divide asymmetrically to produce slowly proliferating "G0-like" progeny that are enriched following chemotherapy in breast cancer patients. Asymmetric cancer cell division results from asymmetric suppression of AKT/PKB kinase signaling in one daughter cell during telophase of mitosis. Moreover, inhibition of AKT signaling with smallmolecule drugs can induce asymmetric cancer cell division and the production of slow proliferators. Cancer cells therefore appear to continuously flux between symmetric and asymmetric division depending on the precise state of their AKT signaling network. This model may have significant implications for understanding how tumors grow, evade treatment, and recur.

Original languageEnglish (US)
Pages (from-to)12845-12850
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume108
Issue number31
DOIs
StatePublished - Aug 2 2011
Externally publishedYes

Keywords

  • Cell signaling
  • Drug resistance
  • Epigenetics
  • Quiescence

ASJC Scopus subject areas

  • General

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    Dey-Guha, I., Wolfer, A., Yeh, A. C., Albeck, J., Darp, R., Leon, E., Wulfkuhle, J., Petricoin, E. F., Wittner, B. S., & Ramaswamy, S. (2011). Asymmetric cancer cell division regulated by AKT. Proceedings of the National Academy of Sciences of the United States of America, 108(31), 12845-12850. https://doi.org/10.1073/pnas.1109632108