Mechanical Induction of BMP-7 in Osteocyte Blocks Glucocorticoid-Induced Apoptosis Through PI3K/AKT/GSK3β Pathway

被引:33
作者
Wang, Zhaohong [1 ]
Guo, Jun [2 ]
机构
[1] Xuzhou Cent Hosp, Dept Orthoped, Xuzhou 221009, Jiangsu, Peoples R China
[2] Chongqing Med Univ, Dept Bone Trauma, Chongqing 400016, Peoples R China
关键词
BMP-7; Osteocyte; Apoptosis; GSK3; beta; BONE MORPHOGENETIC PROTEIN; SMOOTH-MUSCLE-CELLS; SIGNALING PATHWAYS; II RECEPTOR; DIFFERENTIATION; MECHANOTRANSDUCTION; PROLIFERATION; OSTEOPOROSIS; PREVENTION; MIGRATION;
D O I
10.1007/s12013-013-9543-6
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
Mechanical loading is known to promote osteocyte survival, whereas glucocorticoid treatment results in osteocyte apoptosis. Here, we report that BMP-7, which was secreted by osteocyte in response to mechanical loading, exerts anti-apoptotic effect against dexamethasone-induced apoptosis of osteocytes. We further show that the anti-apoptotic effect of BMP-7 is mainly mediated through receptor BMPR2 and is associated with the activation of PI3K/AKT/GSK3 beta pathway.
引用
收藏
页码:567 / 574
页数:8
相关论文
共 41 条
[1]   Osteocyte apoptosis is induced by weightlessness in mice and precedes osteoclast recruitment and bone loss [J].
Aguirre, JI ;
Plotkin, LI ;
Stewart, SA ;
Weinstein, RS ;
Parfitt, AM ;
Manolagas, SC ;
Bellido, T .
JOURNAL OF BONE AND MINERAL RESEARCH, 2006, 21 (04) :605-615
[2]   Dynamic shear stress in parallel-plate flow chambers [J].
Bacabac, RG ;
Smit, TH ;
Cowin, SC ;
Van Loon, JJWA ;
Nieuwstadt, FTM ;
Heethaar, R ;
Klein-Nulend, J .
JOURNAL OF BIOMECHANICS, 2005, 38 (01) :159-167
[3]   Colocalization of glucocorticoid and mineralocorticoid receptors in human bone [J].
Beavan, S ;
Horner, A ;
Bord, S ;
Ireland, D ;
Compston, J .
JOURNAL OF BONE AND MINERAL RESEARCH, 2001, 16 (08) :1496-1504
[4]   Osteocytes as dynamic multifunctional cells [J].
Bonewald, Lynda F. .
SKELETAL BIOLOGY AND MEDICINE, PT A: ASPECTS OF BONE MORPHOGENESIS AND REMODELING, 2007, 1116 :281-290
[5]   Mechanotransduction in bone - role of the lacuno-canalicular network [J].
Burger, EH ;
Klein-Nulend, J .
FASEB JOURNAL, 1999, 13 :S101-S112
[6]   Osteocyte apoptosis and osteoclast presence in chicken radii 0-4 days following osteotomy [J].
Clark, WD ;
Smith, EL ;
Linn, KA ;
Paul-Murphy, JR ;
Muir, P ;
Cook, ME .
CALCIFIED TISSUE INTERNATIONAL, 2005, 77 (05) :327-336
[7]   Effect of recombinant human osteogenic protein-1 on the healing of a freshly closed diaphyseal fracture [J].
den Boer, FC ;
Bramer, JAM ;
Blokhuis, TJ ;
Van Soest, EJ ;
Jenner, JMGT ;
Patka, P ;
Bakker, FC ;
Burger, EH ;
Haarman, HJTM .
BONE, 2002, 31 (01) :158-164
[8]   Smad-dependent and Smad-independent pathways in TGF-β family signalling [J].
Derynck, R ;
Zhang, YE .
NATURE, 2003, 425 (6958) :577-584
[9]   Activin signaling pathways in ovine pituitary and LβT2 gonadotrope cells [J].
Dupont, J ;
McNeilly, J ;
Vaiman, A ;
Canepa, S ;
Combarnous, Y ;
Taragnat, C .
BIOLOGY OF REPRODUCTION, 2003, 68 (05) :1877-1887
[10]   BMP-2 Increases Migration of Human Chondrosarcoma Cells Via PI3K/Akt Pathway [J].
Fong, Yi-Chin ;
Li, Te-Mao ;
Wu, Chi-Ming ;
Hsu, Sheng-Feng ;
Kao, Shung-Te ;
Chen, Ray-Jade ;
Lin, Cheng-Chieh ;
Liu, Shan-Chi ;
Wu, Chien-Lin ;
Tang, Chih-Hsin .
JOURNAL OF CELLULAR PHYSIOLOGY, 2008, 217 (03) :846-855