Co-culture with endothelial progenitor cells promotes survival, migration, and differentiation of osteoclast precursors

被引:20
作者
Pang, Hao [1 ]
Wu, Xue-Hui [1 ]
Fu, Sheng-Long [1 ]
Luo, Fei [1 ]
Zhang, Ze-Hua [1 ]
Hou, Tian-Yong [1 ]
Li, Zhi-Qiang [1 ]
Chang, Zheng-Qi [1 ]
Yu, Bo [1 ]
Xu, Jian-Zhong [1 ]
机构
[1] Third Mil Med Univ, Dept Orthopaed, Southwest Hosp, Chongqing, Peoples R China
基金
中国国家自然科学基金;
关键词
Endothelial progenitor cells; Co-culture; RAW; 264.7; cells; Survival; Migration; Differentiation; GROWTH-FACTOR-BETA; CHEMOKINE RECEPTOR CXCR4; BONE; RECRUITMENT; PATHWAYS; RANKL; VEGF;
D O I
10.1016/j.bbrc.2012.11.081
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
In this study, we report the effect of endothelial progenitor cells (EPCs) on the biological behavior of osteoclast precursors in vitro by establishing an indirect co-culture system of mice EPCs and RAW 264.7 monocyte cells. Results show that the survival, migration, and differentiation of osteoclast precursors were greatly enhanced when co-cultured with EPCs. These phenotypic changes coincide with the upregulation of multiple genes affected cell behavior, including phospho-VEGFR-2, CXCR4, phospho-Smad2/3, phospho-Akt, phospho-ERK1, and phospho-p38 MAPK. The results collectively suggest that EPCs could modulate the survival, migration, and differentiation potential of osteoclast precursors, thus providing new insights in understanding of correlation between angiogenesis and bone homeostasis. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码:729 / 734
页数:6
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