Identification of mast cell progenitors in adult mice PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA Chen, C. C., Grimbaldeston, M. A., Tsai, M., Weissman, I. L., Galli, S. J. 2005; 102 (32): 11408-11413

Abstract

It is well known that mast cells are derived from hematopoietic stem cells. However, in adult hematopoiesis, a committed mast cell progenitor has not yet been identified in any species, nor is it clear at what point during adult hematopoiesis commitment to the mast cell lineage occurs. We identified a cell population in adult mouse bone marrow, characterized as Lin(-)c-Kit(+)Sca-1(-)-Ly6c(-)FcepsilonRIalpha(-)CD27(-)beta7(+)T1/ST2+, that gives rise only to mast cells in culture and that can reconstitute the mast cell compartment when transferred into c-kit mutant mast cell-deficient mice. In addition, our experiments strongly suggest that these adult mast cell progenitors are derived directly from multipotential progenitors instead of, as previously proposed, common myeloid progenitors or granulocyte/macrophage progenitors.

View details for DOI 10.1073/pnas.0504197102

View details for Web of Science ID 000231253400051

View details for PubMedID 16006518