Regulation of bone homeostasis by bone cells
Nakashima, T.
Clinical Calcium 23(2): 218-228
2013
ISSN/ISBN: 0917-5857 PMID: 23354089 Document Number: 14591
Bone is constantly renewed by the balanced action of osteoblastic bone formation and osteoclastic bone resorption both of which mainly occur at the bone surface. This restructuring process called "bone remodeling" is important not only for normal bone mass and strength, but also for mineral homeostasis. Bone remodeling is stringently regulated by communication between bone component cells such as osteoclasts, osteoblasts and osteocytes. An imbalance of this process is often linked to various bone diseases. During bone remodeling, resorption by osteoclasts precedes bone formation by osteoblasts. Based on the osteocyte location within the bone matrix and the cellular morphology, it is proposed that osteocytes potentially contribute to the controls of bone remodeling. Thus, the elucidation of the regulatory mechanisms involved in bone remodeling is critical for a deeper understanding of the skeletal system in health and disease.
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