Concise review: role of DEK in stem/progenitor cell biology.

Journal Article (Review;Journal Article)

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 long-term 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.

Full Text

Duke Authors

Cited Authors

  • Broxmeyer, HE; Mor-Vaknin, N; Kappes, F; Legendre, M; Saha, AK; Ou, X; O'Leary, H; Capitano, M; Cooper, S; Markovitz, DM

Published Date

  • August 2013

Published In

Volume / Issue

  • 31 / 8

Start / End Page

  • 1447 - 1453

PubMed ID

  • 23733396

Pubmed Central ID

  • PMC3814160

Electronic International Standard Serial Number (EISSN)

  • 1549-4918

International Standard Serial Number (ISSN)

  • 1066-5099

Digital Object Identifier (DOI)

  • 10.1002/stem.1443


  • eng