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PRDM11 is dispensable for the maintenance and function of hematopoietic stem and progenitor cells

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  • Lina A Thoren
  • Cathrine K Fog
  • Klaus Thorleif Jensen
  • Natalija Buza-Vidas
  • Christophe Roger Michel Côme
  • Anders H. Lund
  • Bo T Porse
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Hematopoietic stem cells (HSC)(1) supply organisms with life-long output of mature blood cells. To do so, the HSC pool size has to be maintained by HSC self-renewing divisions. PRDM3 and PRDM16 have been documented to regulate HSC self-renewal, maintenance and function. We found Prdm11 to have similar expression patterns in the hematopoietic stem and progenitor cell (HSPC) compartments as Prdm3 and Prdm16. Therefore, we undertook experiments to test if PRDM11 regulates HSC self-renewal, maintenance and function by investigating the Prdm11(-/-) mice. Our data shows that phenotypic HSPCs are intact in bone marrow (BM) of one-year-old Prdm11(-/-) mice. In addition, Prdm11(-/-) mice were able to fully regenerate the hematopoietic system upon BM transplantation (BMT) into lethally irradiated mice with a mild drop in lymphoid output only. Taken together, this suggests that PRDM11, in contrast to PRDM3 and PRDM16, is not directly involved in regulation of HSPCs in mice.
Original languageEnglish
JournalStem Cell Research
Volume11
Issue number3
Pages (from-to)1129-1136
Number of pages8
ISSN1873-5061
DOIs
Publication statusPublished - 9 Aug 2013

ID: 40037743