Journal
BIOLOGY OF BLOOD AND MARROW TRANSPLANTATION
Volume 21, Issue 11, Pages 1888-1894Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.bbmt.2015.08.007
Keywords
Mesenchymal stem cell; Granulocyte colony-stimulating factor; Prostaglandin E2 (PGE2); Hepatocyte growth factor (HGF); Transforming growth factor beta 1 (TGF-beta 1); Bone marrow
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Granulocyte colony stimulating factor (G-CSF) is sometimes administered to donors before bone marrow (BM) harvest. G-CSF primed (G-BM) and unprimed BM (U-BM) derived mesenchymal stem cells (MSC) were obtained from 16 healthy donors and were expanded in vitro. Their proliferative characteristics, morphology, and differentiation capacity were examined. Supernatants of the second passage of MSCs were evaluated for transforming growth factor in, hepatocyte growth factor, and prostaglandin E2 (PGE2) levels and compared with controls. The analyses of cytokines in the G-BM and U-BM derived MSCs supernatants revealed that PGE2 levels were significantly lower in the G-CSF primed samples. These cytokines were also measured in BM plasma. The level of hepatocyte growth factor in G-BM plasma was significantly increased. The current study is the first to show the effects of G-CSF on the BM microenvironment of healthy human donors. The preliminary data suggest that G-BM and U-BM derived MSCs have similar morphologic/ phenotypic properties and differentiation capacity but differ in their secretory capacity. Significant changes in cytokine levels of BM plasma in G-CSF primed donors were also demonstrated. These findings suggest that BM MSCs and changes in the BM microenvironment may contribute to the effects of G-CSF on inflammation and immunomodulation. (C) 2015 American Society for Blood and Marrow Transplantation.
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