Osteoclast behaviors on the surface of deproteinized bovine bone mineral and carbonate apatite substitutes in vitro.

Fujioka-Kobayashi, Masako; Miyamoto, Youji; Ishikawa, Kunio; Satomi, Takafumi; Schaller, Benoit (2022). Osteoclast behaviors on the surface of deproteinized bovine bone mineral and carbonate apatite substitutes in vitro. Journal of biomedical materials research. Part A, 110(8), pp. 1524-1532. Wiley 10.1002/jbm.a.37392

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The present study investigated the osteoclast differentiation potential and paracrine effects of osteoclasts on osteoblast differentiation when the cells were cultured directly on two bone substitutes (BSs): deproteinized bovine bone mineral (DBBM) and carbonate apatite (CO3 Ap). Human primary osteoclasts cultured on the BSs were assessed by tartrate-resistant acid phosphatase (TRAP) and actin ring staining. Thereafter, the mRNA levels of osteoclastic differentiation markers were quantified by real-time PCR. Osteoblast behaviors in response to conditioned media collected from osteoclast cultures were investigated. Interestingly, mature osteoclasts were occasionally observed on the surface of the CO3 Ap granules, whereas very few and small osteoclasts were observed on DBBM. Similarly, real-time PCR analysis showed higher mRNA levels of osteoclast markers, including cathepsin K and TRAP, in the cells cultured on CO3 Ap than in those cultured on DBBM. Furthermore, compared to DBBM, CO3 Ap promoted osteoblast differentiation in human primary osteoblasts, whereas few paracrine effects of osteoclasts cultured with either BS were observed on the osteoblast differentiation potential. These limited results showed that CO3 Ap provided a favorable surface for osteoclast differentiation, as well as osteoblasts, compared to DBBM in vitro.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Craniomaxillofacial Surgery

UniBE Contributor:

Kobayashi, Masako (B), Schaller, Benoît


600 Technology > 610 Medicine & health








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Date Deposited:

19 Apr 2022 11:57

Last Modified:

29 Mar 2023 23:38

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Uncontrolled Keywords:

bone substitutes carbonate apatite deproteinized bovine bone mineral osteoclasts





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