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期刊名称: Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences
Volume:44    Issue:1    
ISSN:1672-7347

Cx43 silencing inhibits mechanical stress-induced apoptosis in mouse articular chondrocyte期刊论文

作者: Zhang Bing Liu Cong Bao Liang Zhou Tao Zhou Pengfei

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期刊名称: Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences
ISSN: 1672-7347
卷期: Volume:44    Issue:1
语言: Chinese
摘要: To explore the effect of connexin 43 (Cx43) silence on the apoptosis in mouse chondrocyte under mechanical stress.
 Methods: Mouse chondrocyte ATDC5 cells were divided into a control group, a mechanical stress group, a Cx43 siRNA transfection group, a scramble siRNA transfection group, a mechanical stress+scramble group, and a mechanical stress+siCx43 group. Flexcell FX-5000 system was used to produce mechanical stress on ATDC5 cells cultured in vitro. The mRNA and protein level of Cx43 was detected by quantitative RT-PCR (RT-qPCR) and Western blot. The cell activity and cell apoptosis was detected by cell counting kit-8 (CCK-8) method and flow cytometry, respectively. Caspase-3 activity was detected by colorimetric assay. The protein expression of Bcl-2, Bax, p-JNK and JNK was detected by Western blot.
 Results: Mechanical stress upregulated the mRNA and protein expression of Cx43 (both P<0.05). Transfection of Cx43 siRNA significantly decreased Cx43 mRNA and protein level (both P<0.05). After stimulation wi

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