골수유래줄기세포에서 분화된 골유사세포에서 β-TCP와 rhBMP-2의 골형성 효과에 관한 연구
The effects of β-TCP/rhBMP-2 on bone formation in osteoblast-like cells induced from bone marrow-derived mesenchymal stem cells
최용수, 황경균, 심광섭, 박창주, 이재선,
소속 상세정보
최용수 ( Choi Yong-Soo ) - 한양대학교 의과대학 치과학교실 구강악안면외과
황경균 ( Hwang Kyung-Gyun ) - 한양대학교 의과대학 치과학교실 구강안면외과
심광섭 ( Shim Kwang-Sub ) - 한양대학교 의과대학 치과학교실 구강안면외과
박창주 ( Park Chang-Joo ) - 한양대학교 의과대학 치과학교실 구강안면외과
이재선 ( Lee Jae-Sun ) - 한양대학교 의과대학 의생명연구소
KMID : 0355620080340040419
Abstract
The present study aimed to investigate the osteogenic potentials of differentiated osteoblast-like cells (DOCs) induced from bone marrow-derived mesenchymal stem cells (MSCs) on β-tricalcium phosphate (β-TCP) with recombinant human bone morphogenetic protein (rhBMP-2) in vitro. Osteoblast differentiation was induced in confluent cultures by adding 100 nM dexamethasone, 10 mM β-glycerophosphate, 50 mM L-ascorbic acid. The Alizarin red S staining and reverse transcriptase-polymerase chain reaction (RT-PCR) were perfomed to examine the mRNA expression of alkaline phosphatase (ALP), bone sialoprotein (BSP), osteocalcin (OCN), receptor activator for nuclear factor κB ligand (RANKL), runt-related transcription factor 2 (RUNX2), collagen-Ⅰ (COL-Ⅰ). There were no significant differences in the osteogenic potentials of DOCs induced from MSCs on β-TCP(+/-). According to the incubation period, there were significant increasing of Alizadin red S staining in the induction 3 weeks. The mRNA expression of ALP, RUNX2, and RANKL were higher in DOCs/β-TCP(-) than DOCs/β-TCP(+). According to rhBMP-2 concentrations, the mRNA expression of BSP was significantly increased in DOCs/β-TCP(+) compared to that of DOCs/β-TCP(-) on rhBMP 10 ng/ml. Our study presented the β-TCP will have the possibility that calcium phosphate directly affect the osteoblastic differentiation of the bone marrowderived MSCs.
키워드
mesenchymalstemcell;rhBMP-2;β-TCP;differentiatedosteoblast-likecell
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