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Communication Factors-Promising Targets in Osteoporosis Treatment

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Osteoporosis is one of the most serious under-diagnosed and under-treated recessive diseases, leading to increased mortality and morbidity as well as huge economic burden. The fundamental reason for the occurrence of osteoporosis lies in the disequilibrium between bone resorption mediated by osteoclasts and bone formation mediated by osteoblasts. Osteoclast-osteoblast communication plays important roles in the maintenance of hemeostasis. In this review, we present the detailed mechanisms of this communication, including modes of diffusible paracrine factors, cell-cell direct contact and cell-bone matrix interaction. We demonstrate that osteoclasts (or osteoblasts) could not only secrete cytokines, growth factors, chemokines and function in a paracrine manner, but also express molecules on their membranes to bind to the receptors on osteoblasts (or osteoclasts) to transduce bidirectional signals. Moreover, growth factors and cytokines deliberated from bone matrix during bone resorption could also regulate the function of both osteoblasts and osteoclasts. This review gives the latest knowledge of communication factors, some of which are emerging as novel therapeutic targets for future development of antiosteoporotic drugs.
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Keywords: Osteoclast; communication; osteoblast; osteoporosis

Document Type: Research Article

Publication date: February 1, 2014

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  • Current Drug Targets aims to cover the latest and most outstanding developments on the medicinal chemistry and pharmacology of molecular drug targets e.g. disease specific proteins, receptors, enzymes, genes. Each issue of the journal will be devoted to a single timely topic, with series of in-depth reviews, written by leaders in the field, covering a range of current topics on drug targets. These issues will be organized and led by a guest editor who is a recognized expert in the overall topic. As the discovery, identification, characterisation and validation of novel human drug targets for drug discovery continues to grow; this journal will be essential reading for all pharmaceutical scientists involved in drug discovery and development.
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