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KURIHARA, N; CHENU, C; MILLER, M; CIVIN, C; ROODMAN, G. D
Endocrinology (Philadelphia), 05/1990, Letnik: 126, Številka: 5Journal Article
Nonadherent marrow mononuclear cells enriched for hematopoietic progenitor cells were cultured in semisolid medium with recombinant human granulocyte-macrophage colony-stimulating factor for 9 days to form colony forming unit-granulocyte macrophage (CFU-GM) colonies. 1,25-Dihydroxyvitamin D was then gently layered over the cultures. After 2 weeks, approximately 30% of the colonies that formed were composed of cells with a unique polygonal morphology. One hundred percent of the polygonal cells in these colonies crossreacted with the monoclonal antibody 23c6, which preferentially recognizes osteoclasts. Homogenous populations of these polygonal cells formed multinucleated cells (MNC) in suspension culture, 100% of which cross-reacted with the 23c6 monoclonal antibody, and greater than 90% of the MNC contracted in response to calcitonin. Approximately 20% of these MNC formed resorption lacunae on calcified matrices. These results suggest that 1) early osteoclast precursors are derived from CFU-GM, the committed granulocyte-macrophage progenitor; 2) committed mononuclear osteoclast precursors have a distinct polygonal morphology and cross-react with monoclonal antibodies that recognize mature osteoclasts; and 3) these mononuclear precursors are capable of forming multinucleated cells which fulfill the functional criteria for osteoclasts.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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