Nature Communications (Aug 2019)

PTPσ inhibitors promote hematopoietic stem cell regeneration

  • Yurun Zhang,
  • Martina Roos,
  • Heather Himburg,
  • Christina M. Termini,
  • Mamle Quarmyne,
  • Michelle Li,
  • Liman Zhao,
  • Jenny Kan,
  • Tiancheng Fang,
  • Xiao Yan,
  • Katherine Pohl,
  • Emelyne Diers,
  • Hyo Jin Gim,
  • Robert Damoiseaux,
  • Julian Whitelegge,
  • William McBride,
  • Michael E. Jung,
  • John P. Chute

DOI
https://doi.org/10.1038/s41467-019-11490-5
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 15

Abstract

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Protein tyrosine phosphatase sigma (PTPσ) deficient haematopoietic stem cells (HSCs) demonstrate increased engraftment following transplantation. Here the authors identify a small molecule inhibitor of PTPσ that promotes murine and human haematopoietic stem cell regeneration via induction of the RAC pathway and BCL-XL.