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Association of chromosome 7 aneuploidy measured by fluorescence in situ hybridization assay with muscular invasion in bladder cancer

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Cancer Communications 2020年第4期40卷 167-180页

作者： Xiayao Diao Jinhua Cai Junjiong Zheng Jianqiu Kong Shaoxu Wu Hao Yu Hao Huang Weibin Xie Xiong Chen Chengran Huang Lifang Huang Haide Qin Jian Huang Tianxin Lin Department of Urology Sun Yat-sen Memorial HospitalSun Yat-senUniversityGuangzhouGuangdong510120P.R.China Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation Sun Yat-Sen Memorial HospitalSun Yat-Sen UniversityGuangzhouGuangdong510120P.R.China Department of Neurology Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhouGuangdong510120P.R.China State Key Laboratory of Oncology in South China GuangzhouGuangdong510120P.R.China

Background:The preoperative prediction of muscular invasion status is important for adequately treating bladder cancer(BC)but nevertheless,there are some existing dilemmas in the current preoperative diagnostic accuracy of BC with muscular invasion.Here,we investigated the potential association between the fluorescence in situ hybridization(FISH)assay and muscular invasion among patients with BC.A cytogenetic-clinical nomogram for the individualized preoperative differentiation of muscle-invasive BC(MIBC)from non-muscle-invasive BC(NMIBC)is also proposed.Methods:All eligible BC patients were preoperatively tested using a FISH assay,which included 4 sites(chromosome-specific centromeric probe[CSP]3,7,and 17,and gene locus-specific probe[GLP]-p16 locus).The correlation between the FISH assay and BC muscular invasion was evaluated using the Chi-square tests.In the training set,univariate and multivariate logistic regression analyses were used to develop a cytogenetic-clinical nomogram for preoperative muscular invasion prediction.Then,we assessed the performance of the nomogram in the training set with respect to its discriminatory accuracy and calibration for predicting muscular invasion,and clinica usefulness,which were then validated in the validation set.Moreover,model comparison was set to evaluate the discrimination and clinical usefulness between the nomogram and the individual variables incorporated in the nomogram.Results:muscular invasion was more prevalent in BC patients with positive CSP3,CSP7 and CSP17 status(OR[95%CI],2.724[1.555 to 4.774],Pmuscular invasion by the multivariate regression analysis in the training set.Then,a cytogenetic-clinical nomogram incorporating these three independent risk factors was constructed and was observed to have satisfactory discrimination in the trai

关键词： chromosome aneuploidy fluorescence in situ hybridization muscular invasion nomogram preoperative prediction urinary bladder neoplasms

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