摘要
目的:探讨自噬相关基因5(Atg5)与前列腺腺癌发生的相关性。方法:实时荧光定量PCR及免疫组化方法检测50例前列腺上皮内瘤变(PIN)、69例前列腺腺癌及30例良性前列腺增生(BPH)组织标本中Atg5的表达情况。结果:实时定量PCR结果显示,PIN及PCa组织中Atg5 mRNA的相对表达量显著高于BPH组织(5.270±0.230 vs 1.723±0.017,5.131±0.252 vs 1.723±0.017,P<0.01)。免疫组化结果显示Atg5在BPH、PIN及PCa组织中的阳性表达率分别为6.7%、94%及88.4%,BPH组织中Atg5的阳性表达率明显低于PIN及PCa,且差异具有统计学意义(P<0.001),PIN与PCa组别之间无显著差异(P>0.05)。Atg5的表达与前列腺腺癌的Gleason评分分级无显著相关性(P>0.05)。结论:前列腺组织中Atg5的高表达可能对前列腺腺癌的发生起着一定作用。
Objective: To investigate the correlation of the autophagy-associated gene Atg5 with the pathogenesis of prostate cancer. Methods: Using real-time fluorescent quantitative reverse transcriptase polymerase chain reaction( qRT-PCR) and immunohistochemistry,we detected the expression of Atg5 in 50 cases of prostate intraepithelial neoplasm( PIN),69 cases of prostate cancer( PCa),and 30 cases of benign prostatic hyperplasia( BPH). Results: The expression level of Atg5 mRNA was significantly higher in PIN( 5. 270 ± 0. 230) and PCa( 5. 131 ± 0. 252) than in the BPH tissue( 1. 723 ± 0. 017)( P 〈 0. 01),and so was the positive rate of the Atg5 expression in the patients of the PIN group( 94%) and PCa group( 88. 4%) than in those of the BPH group( 6. 7%)( P 〈 0. 01),but with no statistically significant differences between the PIN and PCa groups( P 〉 0. 05). No significant correlation was observed between the expression of Atg5 and the Gleason score of PCa( P 〉 0. 05). Conclusion: The upregulated expression of Atg5 might play a role in the tumorigenesis of prostate cancer.
出处
《中华男科学杂志》
CAS
CSCD
北大核心
2015年第1期31-34,共4页
National Journal of Andrology
基金
四川省卫生厅科研课题基金(120581)~~
作者简介
李新(1983-),女,四川成都市人,医师,硕士,从事临床病理诊断专业。Email:993665463@qq.com
通讯作者:李佽,Email:qsdzl@sina.com