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A Trabecular Bone Explant Model of Osteocyte–Osteoblast Co-Culture for Bone Mechanobiology
Chan ME; Lu XL; 霍波; Baik AD; Chiang V; Guldberg RE; Lu HH; Guo XE
Source PublicationCellular and Molecular Bioengineering
2009
Volume2Issue:3Pages:405-415
ISSN1865-5025
Other AbstractThe osteocyte network is recognized as the major mechanical sensor in the bone remodeling process, and osteocyte-osteoblast communication acts as an important mediator in the coordination of bone formation and turnover. In this study, we developed a novel 3D trabecular bone explant co-culture model that allows live osteocytes situated in their native extracellular matrix environment to be interconnected with seeded osteoblasts on the bone surface. Using a low-level medium perfusion system, the viability of in situ osteocytes in bone explants was maintained for up to 4 weeks, and functional gap junction intercellular communication (GJIC) was successfully established between osteocytes and seeded primary osteoblasts. Using this novel co-culture model, the effects of dynamic deformational loading, GJIC, and prostaglandin E-2 (PGE(2)) release on functional bone adaptation were further investigated. The results showed that dynamical deformational loading can significantly increase the PGE(2) release by bone cells, bone formation, and the apparent elastic modulus of bone explants. However, the inhibition of gap junctions or the PGE(2) pathway dramatically attenuated the effects of mechanical loading. This 3D trabecular bone explant co-culture model has great potential to fill in the critical gap in knowledge regarding the role of osteocytes as a mechano-sensor and how osteocytes transmit signals to regulate osteoblasts function and skeletal integrity as reflected in its mechanical properties.
Subject Area生物力学
DOI10.1007/s12195-009-0075-5
Indexed BySCI
Language英语
WOS IDWOS:000270168900014
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/33019
Collection微重力重点实验室
Corresponding AuthorGuo XE
Recommended Citation
GB/T 7714
Chan ME,Lu XL,霍波,等. A Trabecular Bone Explant Model of Osteocyte–Osteoblast Co-Culture for Bone Mechanobiology[J]. Cellular and Molecular Bioengineering,2009,2,3,:405-415.
APA Chan ME.,Lu XL.,霍波.,Baik AD.,Chiang V.,...&Guo XE.(2009).A Trabecular Bone Explant Model of Osteocyte–Osteoblast Co-Culture for Bone Mechanobiology.Cellular and Molecular Bioengineering,2(3),405-415.
MLA Chan ME,et al."A Trabecular Bone Explant Model of Osteocyte–Osteoblast Co-Culture for Bone Mechanobiology".Cellular and Molecular Bioengineering 2.3(2009):405-415.
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