Concise review: Role of DEK in stem/progenitor cell biology

Hal E. Broxmeyer, Nirit Mor-Vaknin, Ferdinand Kappes, Maureen Legendre, Anjan K. Saha, Xuan Ou, Heather O'leary, Maegan Capitano, Scott Cooper, David M. Markovitz

Research output: Contribution to journalReview article

19 Scopus citations


Understanding the factors that regulate hematopoiesis opens up the possibility of modifying these factors and their actions for clinical benefit. DEK, a non-histone nuclear phosphoprotein initially identified as a putative proto-oncogene, has recently been linked to regulate hematopoiesis. DEK has myelosuppressive activity in vitro on proliferation of human and mouse hematopoietic progenitor cells and enhancing activity on engraftment of longterm marrow repopulating mouse stem cells, has been linked in coordinate regulation with the transcription factor C/EBPα, for differentiation of myeloid cells, and apparently targets a long-term repopulating hematopoietic stem cell for leukemic transformation. This review covers the uniqueness of DEK, what is known about how it now functions as a nuclear protein and also as a secreted molecule that can act in paracrine fashion, and how it may be regulated in part by dipeptidylpeptidase 4, an enzyme known to truncate and modify a number of proteins involved in activities on hematopoietic cells. Examples are provided of possible future areas of investigation needed to better understand how DEK may be regulated and function as a regulator of hematopoiesis, information possibly translatable to other normal and diseased immature cell systems.

Original languageEnglish (US)
Pages (from-to)1447-1453
Number of pages7
Issue number8
StatePublished - Aug 2013


  • Chromatin
  • DEK
  • Dipeptidylpeptidase IV
  • Hematopoietic progenitor cells
  • Hematopoietic stem cells
  • Receptors

ASJC Scopus subject areas

  • Cell Biology
  • Developmental Biology
  • Molecular Medicine

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    Broxmeyer, H. E., Mor-Vaknin, N., Kappes, F., Legendre, M., Saha, A. K., Ou, X., O'leary, H., Capitano, M., Cooper, S., & Markovitz, D. M. (2013). Concise review: Role of DEK in stem/progenitor cell biology. STEM CELLS, 31(8), 1447-1453.