Zeng Weiwei,Zhao Yongbin,Li Yugang,et al.Potential application of chymotrypsin-like proteasome activity as a biomarker for prostate cancer[J].Journal of Chongqing Medical University,2023,48(8):903-908.
Zeng Weiwei,Zhao Yongbin,Li Yugang,et al.Potential application of chymotrypsin-like proteasome activity as a biomarker for prostate cancer[J].Journal of Chongqing Medical University,2023,48(8):903-908. DOI: 10.13406/j.cnki.cyxb.003307.
Potential application of chymotrypsin-like proteasome activity as a biomarker for prostate cancer
检测在体和离体的蛋白酶体活性,同时检测核因子κB的抑制蛋白α(inhibitory protein α of nuclear factor κB,IκB-α)、Bcl-2相关X蛋白(BCL-2 associated X protein,Bax)和细胞周期蛋白依赖性激酶抑制因子(cyclin-dependent kinase inhibitor,p27)的表达。
To investigate the feasibility of chymotrypsin-like proteasome(CLP) activity as a biomarker for prostate cancer.
Methods
2
Proteasome activity was determined
in
vitro
and
in vivo
. We also measured the expression of inhibitory protein α of nuclear factor κB(IκB-α),Bcl-2 associated X protein(Bax),and cyclin-dependent kinase inhibitor(p27).
Results
2
CLP activity was elevated by 70%
in vitro
and 23%
in vivo
,and the expression levels of the proteasome substrate proteins IκB-α,Bax,and p27 decreased in prostate cancer cells and prostate tumor xenografts compared with normal prostate epithelial cells and control mouse prostate tissue.
Conclusion
2
CLP activity is a potential biomarker for prostate cancer and may be used to supplement prostate-specific antigen in clinical diagnosis of prostate cancer.
关键词
Keywords
references
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