Cell Reports (Jan 2020)

Vitamin D Receptor Controls Cell Stemness in Acute Myeloid Leukemia and in Normal Bone Marrow

  • Etienne Paubelle,
  • Florence Zylbersztejn,
  • Thiago Trovati Maciel,
  • Caroline Carvalho,
  • Annalisa Mupo,
  • Meyling Cheok,
  • Liesbet Lieben,
  • Pierre Sujobert,
  • Justine Decroocq,
  • Akihiko Yokoyama,
  • Vahid Asnafi,
  • Elizabeth Macintyre,
  • Jérôme Tamburini,
  • Valérie Bardet,
  • Sylvie Castaigne,
  • Claude Preudhomme,
  • Hervé Dombret,
  • Geert Carmeliet,
  • Didier Bouscary,
  • Yelena Z. Ginzburg,
  • Hughes de Thé,
  • Marc Benhamou,
  • Renato C. Monteiro,
  • George S. Vassiliou,
  • Olivier Hermine,
  • Ivan C. Moura

Journal volume & issue
Vol. 30, no. 3
pp. 739 – 754.e4

Abstract

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Summary: Vitamin D (VD) is a known differentiating agent, but the role of VD receptor (VDR) is still incompletely described in acute myeloid leukemia (AML), whose treatment is based mostly on antimitotic chemotherapy. Here, we present an unexpected role of VDR in normal hematopoiesis and in leukemogenesis. Limited VDR expression is associated with impaired myeloid progenitor differentiation and is a new prognostic factor in AML. In mice, the lack of Vdr results in increased numbers of hematopoietic and leukemia stem cells and quiescent hematopoietic stem cells. In addition, malignant transformation of Vdr−/− cells results in myeloid differentiation block and increases self-renewal. Vdr promoter is methylated in AML as in CD34+ cells, and demethylating agents induce VDR expression. Association of VDR agonists with hypomethylating agents promotes leukemia stem cell exhaustion and decreases tumor burden in AML mouse models. Thus, Vdr functions as a regulator of stem cell homeostasis and leukemic propagation. : Paubelle et al. show that targeting the vitamin D receptor has anti-leukemic activity by acting on cell differentiation and by decreasing stemness of AML cells. Keywords: acute myeloid leukemia, vitamin D receptor, leukemic stem cell