Vitamin D3 metabolites induce osteogenic differentiation in human dental pulp and human dental follicle cells

被引:27
作者
Khanna-Jain, Rashi [1 ]
Vuorinen, Annukka [1 ]
Sandor, George K. B. [1 ,4 ,5 ,6 ,7 ]
Suuronen, Riitta [1 ,2 ,3 ]
Miettinen, Susanna [1 ]
机构
[1] Univ Tampere, REGEA, Inst Regenerat Med, Tampere 33520, Finland
[2] Tampere Univ Hosp, Dept Eye Ear & Oral Dis, Tampere 33520, Finland
[3] Tampere Univ Technol, Dept Biomed Engn, FIN-33101 Tampere, Finland
[4] Univ Toronto, Dept Oral & Maxillofacial Surg & Pediat Oral & Ma, Toronto, ON M5S 1A1, Canada
[5] Hosp Sick Children, Toronto, ON M5G 1X8, Canada
[6] Bloorview Kids Rehab, Toronto, ON, Canada
[7] Univ Oulu, Oulu, Finland
关键词
1; alpha; 25(OH)2D(3); 25OHD(3); Dental pulp; Dental follicle; Osteogenic differentiation; L-Ascorbic acid-2-phosphate; beta-Glycerophosphate; STEM-CELLS; EXPRESSION; BONE;
D O I
10.1016/j.jsbmb.2010.08.001
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Vitamin D-3 metabolites regulate the bone metabolism and 1 alpha,25-dihydroxyvitamin D-3 (1 alpha,25(OH)(2)D-3) is known to play an important role in teeth mineralization. However, little is known about the potential of vitamin D as an osteogenic inducer in human dental pulp (hDPCs) and dental follicle cells (hDFCs) in vitro. Therefore, we investigated the effects of vitamin D-3 metabolites 1 alpha,25(OH)(2)D-3 and 25-hydroxyvitamin D-3 (25OHD(3)) on proliferation and osteogenic differentiation of hDPCs and hDFCs in vitro. We also examined whether vitamin D-3 metabolic enzymes were regulated in hDFCs and hDPCs. Cell proliferation was decreased by both metabolites in hDPCs and hDFCs. Vitamin D-3 metabolites increased ALP activity and induced mineralization when osteogenic supplements (OS; L-ascorbic acid-2-phosphate + beta-glycerophosphate) were added, though the expression of osteocalcin (OC) and osteopontin (OPN) were regulated without the addition of OS. CYP24 and CYP27B1 expressions were upregulated by vitamin D-3 metabolites and 25OHD(3) was converted into 1 alpha,25(OH)(2)D-3 in the culture medium. These results confirm that 1 alpha,25(OH)(2)D-3 (10 and 100 nM) and 25OHD(3) (500 nM) can be used as osteogenic inducers synergistically with osteogenic supplements for differentiation of hDPCs and hDFCs. Furthermore, our findings strengthen our knowledge about the role of hDPCs and hDFCs as vitamin D-3 target cells. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:133 / 141
页数:9
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