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  • Title: Bacterial, serum and cellular modulation of granulopoietic activity.
    Author: Bolin RW, Robinson WA.
    Journal: J Cell Physiol; 1977 Aug; 92(2):145-53. PubMed ID: 301878.
    Abstract:
    The interaction human peripheral blood lymphocytes, monocytes, gram-positive bacteria and human serum in the release of colony stimulating activity (CSA) has been studied. CSA was assayed by the soft agar technique using human and murine bone marrow cells. It has been demonstrated that gram-positive organisms and their products can stimulate release of CSA by mononuclear cells. Human serum is also effective in promoting release of CSA. Release is further modulated by interactions between lymphocytes and monocytes, and lymphocytes may serve to control the modulation. The serum component is sensitive to temperature inactivation suggesting that it may have a specific physiologic role in regulation. Bacterial products, on the other hand, are not subject to temperature inactivation and require the presence of human serum for activity to be expressed.
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