Nrf2 regulates haematopoietic stem cell function

Jennifer J. Tsai, Jarrod A. Dudakov, Koichi Takahashi, Jae Hung Shieh, Enrico Velardi, Amanda M. Holland, Natalie V. Singer, Mallory L. West, Odette M. Smith, Lauren F. Young, Yusuke Shono, Arnab Ghosh, Alan M. Hanash, Hien T. Tran, Malcolm A.S. Moore, Marcel R.M. Van Den Brink

Research output: Contribution to journalArticlepeer-review

170 Scopus citations

Abstract

Coordinating the balance between haematopoietic stem cell (HSC) quiescence and self-renewal is crucial for maintaining haematopoiesis lifelong. Equally important for haematopoietic function is modulating HSC localization within the bone marrow niches, as maintenance of HSC function is tightly controlled by a complex network of intrinsic molecular mechanisms and extrinsic signalling interactions with their surrounding microenvironment. In this study we demonstrate that nuclear factor erythroid 2-related factor 2 (Nfe2l2, or Nrf2), well established as a global regulator of the oxidative stress response, plays a regulatory role in several aspects of HSC homeostasis. Nrf2 deficiency results in an expansion of the haematopoietic stem and progenitor cell compartment due to cell-intrinsic hyperproliferation, which was accomplished at the expense of HSC quiescence and self-renewal. We further show that Nrf2 modulates both migration and retention of HSCs in their niche. Moreover, we identify a previously unrecognized link between Nrf2 and CXCR4, contributing, at least partially, to the maintenance of HSC function.

Original languageEnglish (US)
Pages (from-to)309-316
Number of pages8
JournalNature cell biology
Volume15
Issue number3
DOIs
StatePublished - Mar 2013
Externally publishedYes

ASJC Scopus subject areas

  • Cell Biology

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