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KMID : 0606920110190020141
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Biomolecules & Therapeutics
2011 Volume.19 No. 2 p.141 ~ p.148
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The Role of Jak/STAT Pathways in Osteoclast Differentiation
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Lee Young-Kyun
Kim Hong-Hee
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Abstract
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Osteoclasts are bone-resorbing cells of monocyte/macrophage origin and are culprits of bone destruction associated with osteoporosis, rheumatoid arthritis, and cancer bone metastasis. Recent advances in osteoclast biology revealed central roles of various cytokines in regulating osteoclastogenesis both in vitro and in vivo. However, exact underlying mechanisms including signaling pathways downstream of receptor ligation are still under pursuit. In the present review, the role of Jak/STAT proteins and their regulators will be discussed in connection with osteoclastogenesis, since growing evidence indicates that a number of cytokines and growth factors utilizing Jak/STAT signaling pathways affect osteoclastogenesis. A better understanding on the role of Jak/ STAT pathways in osteoclast differentiation will not only strengthen our knowledge on osteoclast biology but also provide invaluable insights into the development of anti-resorptive strategies for treating bone-lytic diseases.
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KEYWORD
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Jak, STAT, Osteoclast, Differentiation
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