Beclin-1、LC3-Ⅱ在宫颈病变组织中的表达及意义
The Expression and Significance of Beclin-1 and LC3-Ⅱ in Cervical Lesions
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摘要: 目的 检测Beclin-1、LC3-Ⅱ在宫颈病变组织及HPV感染中的表达, 并探讨其临床意义。方法选取昆明医科大学第二附属医院妇科2014年10月至2016年6月的行宫颈癌筛查 (HPV、TCT) 的患者, 筛查结果任意一项异常患者均行宫颈活检, 最终选取病检结果为正常的宫颈组织40例 (其中HPV感染20例, 无HPV感染20例) ;CINⅠ30例;CINⅡ/Ⅲ30例;年龄范围为25~55岁;妊娠及已行宫颈治疗过的患者不纳入研究范围。用Western Blot法检测正常宫颈组织、CINⅠ及CINⅡ/Ⅲ组织中Beclin-1、LC3-Ⅱ相对表达量。结果 (1) Beclin-1在正常的宫颈组织、CINⅠ及CINⅡ/Ⅲ组织中的相对表达量分别为 (0.561±0.041) 、 (0.421±0.018) 、 (0.351±0.016) ;LC3-Ⅱ在正常宫颈组织、CINⅠ及CINⅡ/Ⅲ组织中的相对表达量为 (0.683±0.027) 、 (0.435±0.029) 、 (0.325±0.017) ;Beclin-1、LC3-Ⅱ在3组间的相对表达量差异有统计学意义 (P <0.001) ;Beclin 1, LC3-Ⅱexist in the relative expression between the 3 group were statistically significant (P <0.001) (2) 病检结果为正常的宫颈组织中HPV感染组中Beclin-1和LC3-Ⅱ的相对表达量均显著低于无HPV感染组 (P <0.05) 。结论随着宫颈病变级别的增加, 自噬相关基因Beclin-1、LC3-Ⅱ的相对表达量呈下降趋势, 提示自噬基因活性下降或缺失可能参与宫颈癌的进展。Abstract: Objective To detect the expression and significance of Beclin-1 and LC3-Ⅱin cervical lesions and HPV infection, and explore their clinical significance. Methods We selected patients in the department of gynecology of the second affiliated hospital of kunming medical university form October 2014 to June 2016 to accept cervical cancer screening (HPV, TCT) , and if any result was abnormal, the patient should be given cervical biopsy. Finally, 40 cases of normal cervical tissues (including 20 cases of HPV infection and 20 cases of no HPV infection) were selected as the disease test result. CINⅠ30 cases; CINⅡ/Ⅲ30 cases; the age range from 25 to 55 years old. The patients who received cervical lesions treatment and pregnant women were not included in the study.Western Blot was used to detect the relative transcript level of Beclin-1, LC3-Ⅱin normal cervical tissues and CINⅠ, CINⅡ/Ⅲ. Results (1) The relative expression levels of Beclin-1 in normal cervical tissue and CIN Ⅰ and CIN Ⅱ/Ⅲ tissuses were (0.561±0.041) , (0.421±0.018) and (0.351±0.016) respectively;The relative expression levels of LC3-Ⅱ in normal cervical tissue and CIN Ⅰ and CIN Ⅱ/Ⅲ tissues were (0.683±0.027) , (0.435±0.029) and (0.325±0.017) . The difference in the relative expression of Beclin-1 and LC3-Ⅱ between the 3 groups were statistically significant (P < 0.001) .The relative expression of Beclin-1 and LC3-II in normal cervical tissues with HPV infection was significantly lower than that in normal cervical tissues without HPV infection (P < 0.05) . Conclusion With the increase of cervical lesion level, autophagy related genes Beclin-1, the relative expression of LC3-Ⅱ is on the decline, suggesting autophagy gene activity decline or loss may be involved in the progress of cervical cancer.
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Key words:
- Cervical lesions /
- Autophagy /
- Beclin-1 /
- LC3-Ⅱ
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