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Query: UNIPROT:P04141 (granulocyte-macrophage colony-stimulating factor)
 6,790 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The effect of granulocyte-macrophage colony-stimulating factor (GM-CSF) on B lymphocytes from persistent lymphocytosis (PL) cattle and lymphoma cells induced by bovine leukemia virus (BLV) was studied in vitro. Flow cytometric analysis showed that high levels of receptors to GM-CSF were expressed on these cell types. Proliferation of these B cells was induced in response to bovine GM-CSF. In tumor cell lines, the rate of cell proliferation was correlated with expression of GM-CSF receptors. A monoclonal antibody to GM-CSF inhibited lymphocyte proliferation and blocked the GM-CSF binding of lymphocytes. Cells expressing GM-CSF receptor were Ig positive and both CD5 and CD11 positive (B-1a cell). These results suggest that an abnormal expression of GM-CSF receptors on B lymphocytes from PL and lymphoma cells induced by BLV plays important roles in the PL and proliferation of lymphoma.
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PMID:Expression of granulocyte-macrophage colony-stimulating factor (GM-CSF) receptor on B-1a cell from persistent lymphocytosis (PL) cows and lymphoma cell induced by bovine leukemia virus. 1023 51