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    Naloxone interferes with granulocytopoiesis in long-term cultures of mouse bone marrow; buffering by the stromal layer.

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    Authors
    Krizanac-Bengez, L
    Boranić, M
    Testa, Nydia G
    Kardum, I
    Affiliation
    Ruder Bosković Institute, Zagreb, Croatia.
    Issue Date
    1994
    
    Metadata
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    Abstract
    Long-term cultures of mouse bone marrow cells were treated with naloxone, starting at the time of culture initiation or in the 2nd or 4th week of culture. Cell proliferation was suppressed and the ratio of immature and mature granulocytes to macrophages diminished by naloxone treatment. The effect depended on the timing of naloxone addition to the cultures and on its concentration, with a bell-shaped dose-response curve. High and low concentrations of naloxone (10(-4), 10(-6), 10(-14) M) interfered with hematopoiesis more strongly than the intermediate concentrations (10(-8) to 10(-12) M). Early cultures lacking the stromal layer were more sensitive to naloxone than the cultures with established stroma. The bell-shaped dose-response curve has been attributed to an interplay of specific (opioid-receptor-mediated) and nonspecific mechanisms. Opioidergic mechanisms apparently participate in the regulation of hematopoiesis.
    Citation
    Naloxone interferes with granulocytopoiesis in long-term cultures of mouse bone marrow; buffering by the stromal layer. 1994, 194 (6):375-82 Res Exp Med (Berl)
    Journal
    Research in Experimental Medicine
    URI
    http://hdl.handle.net/10541/96116
    DOI
    10.1007/BF02576400
    PubMed ID
    7716345
    Type
    Article
    Language
    en
    ISSN
    0300-9130
    ae974a485f413a2113503eed53cd6c53
    10.1007/BF02576400
    Scopus Count
    Collections
    All Paterson Institute for Cancer Research

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