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ClC‐3 Promotes Osteogenic Differentiation in MC3T3‐E1 Cell After Dynamic Compression
Author(s) -
Wang Dawei,
Wang Hao,
Gao Feng,
Wang Kun,
Dong Fusheng
Publication year - 2017
Publication title -
journal of cellular biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 165
eISSN - 1097-4644
pISSN - 0730-2312
DOI - 10.1002/jcb.25823
Subject(s) - runx2 , microbiology and biotechnology , proliferating cell nuclear antigen , chemistry , osteopontin , cell growth , gene expression , biology , biochemistry , gene , immunology
ClC‐3 chloride channel has been proved to have a relationship with the expression of osteogenic markers during osteogenesis, persistent static compression can upregulate the expression of ClC‐3 and regulate osteodifferentiation in osteoblasts. However, there was no study about the relationship between the expression of ClC‐3 and osteodifferentiation after dynamic compression. In this study, we applied dynamic compression on MC3T3‐E1 cells to detect the expression of ClC‐3, runt‐related transcription factor 2 ( Runx2 ), bone morphogenic protein‐2 ( BMP‐2 ), osteopontin ( OPN ), nuclear‐associated antigen Ki67 ( Ki67 ), and proliferating cell nuclear antigen ( PCNA ) in biopress system, then we investigated the expression of these genes after dynamic compression with Chlorotoxin (specific ClC‐3 chloride channel inhibitor) added. Under transmission electron microscopy, there were more cell surface protrusions, rough surfaced endoplasmic reticulum, mitochondria, Golgi apparatus, abundant glycogen, and lysosomes scattered in the cytoplasm in MC3T3‐E1 cells after dynamic compression. The nucleolus was more obvious. We found that ClC‐3 was significantly up‐regulated after dynamic compression. The compressive force also up‐regulated Runx2, BMP‐2, and OPN after dynamic compression for 2, 4 and 8 h. The proliferation gene Ki67 and PCNA did not show significantly change after dynamic compression for 8 h. Chlorotoxin did not change the expression of ClC‐3 but reduced the expression of Runx2, BMP‐2, and OPN after dynamic compression compared with the group without Cltx added. The data from the current study suggested that ClC‐3 may promotes osteogenic differentiation in MC3T3‐E1 cell after dynamic compression. J. Cell. Biochem. 118: 1606–1613, 2017. © 2016 Wiley Periodicals, Inc.

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