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中华腔镜泌尿外科杂志(电子版) ›› 2025, Vol. 19 ›› Issue (02) : 198 -204. doi: 10.3877/cma.j.issn.1674-3253.2025.02.013

临床研究

VHL、PBRM1、BAP1、SETD2 基因在肾透明细胞癌中的表达及临床意义
曾丽华1,2, 林碧云3, 蔡敏仪2, 易智君2, 王晓冰2, 陆元志1,4,()   
  1. 1. 524000 湛江,广东医科大学附属医院病理诊断研究中心
    2. 516000 广东,惠州市中心人民医院病理科
    3. 524000 湛江,广东医科大学附属医院临床生物样本库
    4. 510000 广州,暨南大学第一附属医院病理科
  • 收稿日期:2024-04-20 出版日期:2025-04-01
  • 通信作者: 陆元志

Expression and clinical signiflcance of VHL,PBRM1,BAP1,SETD2 genes in clear cell renal cell carcinoma

Lihua Zeng1,2, Biyun Lin3, Minyi Cai2, Zhijun Yi2, Xiaobing Wang2, Yuanzhi Lu1,4,()   

  1. 1. Pathological Diagnosis and Research Center,Affiliated Hospital of Guangdong Medical University,Zhanjiang 524000,China
    2. Department of Pathology,Huizhou Central People's Hospital,Huizhou 516000,China
    3. Clinical Biological Sample Bank,Affiliated Hospital of Guangdong Medical University,Zhanjiang 524000,China
    4. Department of Pathology,the First Affiliated Hospital of Jinan University,Guangzhou 510000,China
  • Received:2024-04-20 Published:2025-04-01
  • Corresponding author: Yuanzhi Lu
引用本文:

曾丽华, 林碧云, 蔡敏仪, 易智君, 王晓冰, 陆元志. VHL、PBRM1、BAP1、SETD2 基因在肾透明细胞癌中的表达及临床意义[J/OL]. 中华腔镜泌尿外科杂志(电子版), 2025, 19(02): 198-204.

Lihua Zeng, Biyun Lin, Minyi Cai, Zhijun Yi, Xiaobing Wang, Yuanzhi Lu. Expression and clinical signiflcance of VHL,PBRM1,BAP1,SETD2 genes in clear cell renal cell carcinoma[J/OL]. Chinese Journal of Endourology(Electronic Edition), 2025, 19(02): 198-204.

目的

探讨VHL、PBRM1、BAP1、SETD2 基因在肾透明细胞癌(ccRCC)组织中的表达水平及临床意义。

方法

收集惠州市中心人民医院2016 年1 月1 日至2021 年12 月31 日手术切除的ccRCC 组织,采用免疫组织化学法检测VHL、PBRM1、BAP1、SETD2 基因在104 例原发ccRCC 组织及癌旁正常肾小管组织的表达水平,利用统计软件分析基因表达与临床病理特征、预后的相关性。

结果

VHL、PBRM1、BAP1、SETD2 在ccRCC 组织中表达阳性率分别为51.92%、85.58%、60.58%和60.58%,而在正常肾小管组织中的阳性率分别为89.42%、98.08%、98.08%和99.04%,ccRCC 的阳性率显著低于癌旁正常肾小管组织(P<0.001)。进一步发现BAP1 和SETD2 阴性表达与肿瘤最大径>4 cm 及TNM 分期Ⅲ~Ⅳ期相关(P<0.05),其中BAP1 阴性表达还与脉管浸润相关(P=0.001)。VHL 基因表达缺失在未出血坏死的肿瘤中占比高(P=0.009)。Kaplan -Meier 分析显示ccRCC 患者无复发生存期与BAP1 阴性表达呈负相关(P=0.023)。相关性分析显示,VHL 与BAP1、SETD2 表达存在相关性(r=0.470 及0.269,均P<0.05);SETD2 与PBRM1 和BAP1 表达存在相关性(r=0.244 及0.357,均P<0.05)。

结论

VHL、PBRM1、BAP1、SETD2 在ccRCC 中存在表达缺失,并且不同基因表达之间存在相关性。BAP1 与SETD2 阴性表达与ccRCC 的肿瘤较大、分期高和侵袭转移有关,提示它们是潜在预后不良因素。BAP1 阴性表达与ccRCC 患者不良预后有关,无复发生存期更短,可能是ccRCC 新的潜在预后标记。

Objective

To investigate the expression and clinicopathological significance of VHL,PBRM1,BAP1 and SETD2 genes in clear cell renal cell carcinoma (ccRCC).

Methods

104 cases of ccRCC primary tissue and adjacent normal renal tubular tissue samples were collected from the Department of Pathology at Huizhou Central People's Hospital from Jannary 1,2016 to December 31,2021,the expression levels of VHL,PBRM1,BAP1 and SETD2 proteins were detected by immunohistochemistry.Then the correlation and clinicopathological features and prognosis of VHL,PBRM1,BAP1 and SETD2 protein expression in ccRCC were analyzed by statistical techniques.

Results

The positive rates of VHL,PBRM1,BAP1 and SETD2 expression in ccRCC tissues were 51.92%,85.58%,60.58% and 60.58%,respectively,while in normal renal tubular tissues were 89.42%,98.08%,98.08% and 99.04%,the positive rates of these proteins in ccRCC were significantly lower than those of adjacent normal renal tubular tissue (P<0.001).Analysis of the correlation between protein expression and clinicopathological characteristics of ccRCC showed that BAP1 and SETD2 negative expression was associated with tumor maximum diameter > 4 cm and TNM stage III-IV (P<0.05),and BAP1 negative expression was also associated with vascular invasion (P=0.001).VHL expression deletion accounted for a high proportion of tumors without hemorrhage and necrosis (P=0.009).Kaplan-Meier analysis showed that the recurrencefree survival of ccRCC patients was negatively correlated with BAP1 loss (P=0.023).Correlation analysis showed that VHL expression was correlated with BAP1 and SETD2 (r=0.470 and 0.269,both P<0.05) and SETD2 was correlated with PBRM1 and BAP1 (r=0.244 and 0.357,both P<0.05).

Conclusion

The expression of VHL,PBRM1,BAP1,and SETD2 were lost in ccRCC,and there were correlations between different gene expressions.The negative expression of BAP1 and SETD2 was associated with tumor size,high stage,and invasion and metastasis in ccRCC,suggesting that they were potential poor prognostic factors.BAP1 negativie expression may be a prognostic factor for ccRCC patients,with shorter recurrencefree survival,and could be used as new potential therapeutic targets for ccRCC.

图1 VHL、PBRM1、BAP1 和SETD2 在肾透明细胞癌和肾小管组织中的表达(×200) 注:图e 和f、g 和h、m 和n、o 和p 分别为VHL、BAP1、PBRM1 和SETD2 在肾小管和肾透明细胞癌中的表达结果;图a、b、c、d、i、j、k、l 分别为图e、f、g、h、m、n、o、p 对应的HE 染色结果
表1 VHL、PBRM1、BAP1、SETD2 基因在肾透明细胞癌和癌旁肾小管组织的表达情况(例)
表2 VHL、PBRM1、BAP1、SETD2 基因在肾透明细胞癌患者的表达及与其临床病理特征关系(例)
图2 VHL、PBRM1、BAP1、SETD2 基因表达与肾透明细胞癌患者预后的关系 图3 VHL、PBRM1、BAP1、SETD2 基因表达在肾透明细胞癌中的相关性分析
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