✦ LIBER ✦

Signaling networks and transcription factors regulating mechanotransduction in bone

✍ Scribed by Dionysios J. Papachristou; Katerina K. Papachroni; Efthimia K. Basdra; Athanasios G. Papavassiliou

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 412 KB
Volume: 31
Category: Article
ISSN: 0265-9247
DOI: 10.1002/bies.200800223

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Mechanical stimulation has a critical role in the development and maintenance of the skeleton. This function requires the perception of extracellular stimuli as well as their conversion into intracellular biochemical responses. This process is called mechanotransduction and is mediated by a plethora of molecular events that regulate bone metabolism. Indeed, mechanoreceptors, such as integrins, G protein‐coupled receptors, receptor protein tyrosine kinases, and stretch‐activated Ca^2+^ channels, together with their downstream effectors coordinate the transmission of load‐induced signals to the nucleus and the expression of bone‐related genes. During the past decade, scientists have gained increasing insight into the molecular networks implicated in bone mechanotransduction. In the present paper, we consider the major signaling cascades and transcription factors that control bone and cartilage mechanobiology and discuss the influence of the mechanical microenvironment on the determination of skeletal morphology.

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