NORMAL COLONY STIMULATING FACTOR (CSF) PRODUCTION BY BONE-MARROW STROMAL CELLS AND ABNORMAL GRANULOPOIESIS WITH DECREASED CFUC IN SL-SLD MICE

  • 1 January 1976
    • journal article
    • research article
    • Vol. 4  (3) , 125-130
Abstract
The concentration of CFUc [colony forming unit cells] and the production of stromal-derived CSF in the femora of S1/S1d mice were determined. There was a lower concentration of CFUc and a smaller total number of nucleated cells in the femoral marrow of WCB6. S1/S1d (S1/S1d) mice than in WCB6.+/+/ (+/+) mice or in C57B1/6. +/+ (C57B1) mice. Stromal-derived CSF production by femora from S1/S1d mice did not differ significantly from that of +/+''s. The microenvironmental defect of S1/S1d mice probably resulted in decreased growth of granulocytic precursors as well as those of erythroid and megakaryocytic cells. This was consistent with the reported decrease in multipotential stem cell proliferation. Stromal cell derived CSF production was normal and could not be implicated in the decreased production of granulocytic precursors.

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