Numbers of long-term hematopoietic stem cells from bone marrow of fanca and fancc knockout mice can be greatly enhanced by their collection and processing in physioxia conditions

Hal E. Broxmeyer, Maegan L. Capitano, Scott Cooper, Elizabeth Sierra Potchanant, D. Wade Clapp

Research output: Contribution to journalArticle

Abstract

Fanconi anemia (FA) is associated with bone marrow failure. Bone marrow (BM) from patients with FA and fanca−/− and fancc−/− mice are deficient in hematopoietic stem (HSCs) and progenitor cells (HPCs). Decreased HSCs/HPCs compromise their use in human and mouse hematopoietic cell transplantation (HCT) and gene therapy to correct genetic defects causing FA. We reported increased collection of HSCs from mouse bone marrow and mobilized peripheral blood, and human cord blood of normal donors after collection/processing in low (3%) oxygen (physioxia). We assessed comparative contents of long-term (LT)-HSCs from BM of fanca−/− and fancc−/− when collected/processed at 3% O2, in order to negate effects of extra physiological shock stress (EPHOSS) induced by collection/processing in ambient air. Collection/processing of BM from fanca−/− and fancc−/− mice in physioxia demonstrated a ≥3-fold increase in LT-HSCs compared to that in ambient air. This was associated with decreased phenotypic multipotential progenitor cells and functional granulocyte macrophage, erythroid, and multi-potential progenitors, results similar to that for BM from normal donor mice. Increased collection of HSCs could have clinical applicability for gene therapy and HCT.

Original languageEnglish (US)
Article number102492
JournalBlood Cells, Molecules, and Diseases
Volume86
DOIs
StatePublished - Feb 2021

Keywords

  • fanca mice
  • fancc mice
  • Hematopoietic stem and progenitor cells
  • Physioxia (lowered O tension)

ASJC Scopus subject areas

  • Molecular Medicine
  • Molecular Biology
  • Hematology
  • Cell Biology

Fingerprint Dive into the research topics of 'Numbers of long-term hematopoietic stem cells from bone marrow of fanca and fancc knockout mice can be greatly enhanced by their collection and processing in physioxia conditions'. Together they form a unique fingerprint.

  • Cite this