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Human receptor activator of NF-κB ligand (RANKL) induces osteoclastogenesis of primates in vitro

Shigeru Kotake, Toru Yago, Manabu Kawamoto and Yuki Nanke
In Vitro Cellular & Developmental Biology. Animal
Vol. 48, No. 9 (October 2012), pp. 593-598
Stable URL: http://www.jstor.org/stable/23279346
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Human receptor activator of NF-κB ligand (RANKL) induces osteoclastogenesis of primates in vitro
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Abstract

Mouse receptor activator of NF-κB ligand (RANKL), which induces osteoclastogenesis from monocytes or macrophages, was independently cloned by three groups in 1997. Mouse osteoclasts have been induced from peripheral monocytes stimulated by RANKL and macrophage colony-stimulating factor (M-CSF) both in vitro and in vivo; however, the mechanism of primate osteoclastogenesis has not been studied. In addition, the effects of human RANKL on primate osteoclastogenesis remain to be elucidated. Here, we investigated the effect of human RANKL on the osteoclastogenesis of monocytes from five subspecies of primates. Human RANKL induced osteoclastogenesis of all the primates. In addition, human RANKL induced pit formation by osteoclasts from monocytes of the crab-eating macaque. We also demonstrated that the primate osteoclastogenesis was inhibited by a novel peptide, which inhibited human osteoclastogenesis in our previous study. Thus, these findings clearly demonstrated that human RANKL induces primate osteoclastogenesis in the presence of human M-CSF.

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