title: Role of macrophage-colony stimulating factor and osteoclast differentiation factor in osteoclastogenesis of bone marrow derived stem cells.
abstract: Macrophage colony stimulating factor (M-CSF) and osteoclast differentiation factor (ODF) regulate osteoclastogenesis in vivo. Regulation of osteoclast development in vitro by these cytokines has been reported in the present study. Simultaneous addition of ODF and M-CSF during initiation of bone marrow culture inhibited osteoclastogenesis. However, delayed addition of ODF (three days after initiation of the culture) resulted in dramatic increase in phenotypically and functionally mature osteoclast cells. Delayed addition of ODF beyond day three decreased osteoclastogenesis. Further, removal of M-CSF as early as day three inhibited ODF-induced osteoclastogenesis. These studies provided evidence for the importance of co-ordinated regulation of osteoclastogenesis by M-CSF and ODF.
authors.affiliation: Pediatrics; Division of Hematology and Oncology, Children's Hospital of Columbus, OH, USA.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Bayoumy
authors.forename: Uma
authors.initials: U
authors.lastname: Sankar
authors.forename: Natarajan
authors.initials: N
authors.lastname: Muthusamy
mesh_terms: D000135:Acid Phosphatase / Q000378:metabolism; D000199:Actins / Q000378:metabolism; D000818:Animals; D001853:Bone Marrow / Q000502:physiology; D002352:Carrier Proteins / Q000494:pharmacology*; D002478:Cells, Cultured; D006412:Hematopoietic Stem Cells / Q000166:cytology* / Q000378:metabolism; D016173:Macrophage Colony-Stimulating Factor / Q000494:pharmacology*; D008562:Membrane Glycoproteins / Q000494:pharmacology*; D051379:Mice; D010010:Osteoclasts / Q000166:cytology*; D010012:Osteogenesis / Q000187:drug effects*; D053245:RANK Ligand; D053246:Receptor Activator of Nuclear Factor-kappa B; D011994:Recombinant Proteins / Q000494:pharmacology; D013644:Tartrates / Q000494:pharmacology; D013997:Time Factors
chemical_list: D000199:Actins; D002352:Carrier Proteins; D008562:Membrane Glycoproteins; D053245:RANK Ligand; D053246:Receptor Activator of Nuclear Factor-kappa B; D011994:Recombinant Proteins; D013644:Tartrates; C505687:Tnfrsf11a protein, mouse; C505689:Tnfsf11 protein, mouse; D016173:Macrophage Colony-Stimulating Factor; D000135:Acid Phosphatase; C029768:tartaric acid