Previous attempts at identifying the constitutive source(s) of granulocyte colony-stimulating factor (G-CSF) in human bone marrow have been unsuccessful despite the fact that normal bone marrow supports abundant myelopoiesis in vivo. We hypothesized that the intimate physical association between bone and hematopoietic cells facilitates interactions between osteoblasts and hematopoietic stem cells. Here we provide the first direct evidence that human osteoblasts participate in hematopoiesis by constitutively producing G-CSF and present the protein in a membrane-associated fashion to human hematopoietic progenitors. These results suggest a direct and central role for osteoblasts in normal myelopoiesis.
Human osteoblasts support hematopoiesis through the production of granulocyte colony-stimulating factor
R. Taichman,Stephen G. Emerson
Published 1994 in Journal of Experimental Medicine
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PUBLICATION RECORD
- Publication year
1994
- Venue
Journal of Experimental Medicine
- Publication date
1994-05-01
- Fields of study
Biology, Medicine
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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