杨建平 李春君 罗文奇 陈肖瑜 黄冬梅 马韵 曾丽霞



【摘要】 目的 T1期膀胱尿路上皮癌(urothelial bladder cancer,T1 UBC)的病理腫瘤分级对于患者的预后及治疗决策有重要意义,但病理两级分级系统的诊断可重复性有限,该研究旨在寻找客观且易于检测的标志物用于T1 UBC的病理分级。
方法 收集经尿道膀胱肿瘤电切术、病理诊断为膀胱尿路上皮病变共139例,其中非癌性病变24例,T1期的UBC 115例。联合检测一系列以往研究提示在UBC的诊断及预后判断中常见的且有一定价值但尚存争议的因子,如肿瘤细胞的核分裂象/核分裂指数(mitotic figure/index,MF/MI)、细胞增殖指数Ki67以及成纤维细胞生长因子受体3(fibroblast growth factor receptor 3,FGFR3),评估它们在T1 UBC的病理分级诊断中的应用价值。
结果 MI、Ki67及FGFR3与T1 UBC的病理诊断和级别有关(P<0.05)。联合检测MI、Ki67及FGFR3多因素诊断模型可以提高T1 UBC病理级别诊断的准确性(AUC=0.906,95% CI:0.838~0.953,P<0.05)。
结论 MI、Ki67及FGFR3蛋白表达是UBC诊断中有意义的指标。联合检测MI、Ki67及FGFR3的多因素诊断模型可以提高T1 UBC的病变级别诊断准确性。
【关键词】 膀胱尿路上皮癌;成纤维细胞生长因子受体3;Ki67;核分裂象
中图分类号:R737.1 文献标志码: DOI:10.3969/j.issn.10031383.2021.06.004
Study on value of combined detection of FGFR3, MI and Ki67 in pathological grading of stage T1 bladder urothelial carcinoma
YANG Jianping, LI Chunjun, LUO Wenqi, CHEN Xiaoyu, HUANG Dongmei, MA Yun, ZENG Lixia▲
(Department of Pathology, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, Guangxi, China)
【Abstract】 Objective The pathological grading of stage T1 urothelial bladder cancer (T1 UBC) is of great significance for the prognosis and treatment decisionmaking of patients. However, the diagnostic repeatability of the twostage pathologicaclassification system is limited. This study aims to find objective and easy to detect markers for the pathological grading of T1 UBC.
Methods A total of 139 patients with urothelial bladder lesions who diagnosed pathologically after transurethral resection of the bladder tumor (TURBT) were collected, including 24 cases of noncancerous lesions and 115 cases of T1 UBC. A series of previous studies have suggested some common and valuable but controversial factors in the diagnosis and prognosis of UBC, such as mitotic figure/index (MF/MI) of tumor cell, cell proliferation index Ki67, and fibroblast growth factor receptor 3 (FGFR3), and the value of these factors in the pathological grading diagnosis of T1 UBC was evaluated.
Results MI, Ki67 and FGFR3 were correlated with pathological diagnosis and grade of T1 UBC (P < 0.05). The combined detection of the MI, Ki67 and FGFR3 in a multivariate diagnostic model could improve the diagnostic accuracy of T1UBC pathological grade (AUC=0.906, 95% CI: 0.838-0.953, P < 0.05).
Conclusion MI, Ki67 and FGFR3 protein expressions are significant indicators in the diagnosis of UBC. The combined detection of the MI, Ki67 and FGFR3 in a multivariate diagnostic model can improve the diagnostic accuracy of T1 UBC pathological grade.
【Key words】 UBC; FGFR3; Ki67; MF
膀胱尿路上皮癌(urothelial bladder cancer,UBC)是常见的恶性肿瘤,男性多于女性[1]。近年中国的发病率逐年上升[2]。约75%以上的患者初次诊断为非肌层浸润性膀胱癌(nonmuscle invasive bladder cancer,NMIBC),其中约20%为T1期的膀胱癌,即肿瘤侵犯固有层尚未侵及固有肌层[3]。病理分级是影响T1 UBC预后和指导治疗最重要的指标。目前UBC病理两级分级系统的诊断可重复性有限[4~6]。因此,急需寻找客观且易于检测的标志物用于T1 UBC的病理分级,避免过度或不当的治疗。成纤维细胞生长因子受体3(fibroblast growth factor receptor 3,FGFR3)基因异常是膀胱尿路上皮癌中常见的遗传学事件,但目前研究表明FGFR3蛋白表达与UBC的分级及分期仍存在争议。……