BACKGROUND Pancreatic cancer is a highly invasive malignant tumor. Expression levels of the autophagy-related protein microtubule-associated protein 1 A/1 B-light chain 3(LC3) and perineural invasion(PNI) are closely ...BACKGROUND Pancreatic cancer is a highly invasive malignant tumor. Expression levels of the autophagy-related protein microtubule-associated protein 1 A/1 B-light chain 3(LC3) and perineural invasion(PNI) are closely related to its occurrence and development. Our previous results showed that the high expression of LC3 was positively correlated with PNI in the patients with pancreatic cancer. In this study, we further searched for differential genes involved in autophagy of pancreatic cancer by gene expression profiling and analyzed their biological functions in pancreatic cancer, which provides a theoretical basis for elucidating the pathophysiological mechanism of autophagy in pancreatic cancer and PNI.AIM To identify differentially expressed genes involved in pancreatic cancer autophagy and explore the pathogenesis at the molecular level.METHODS Two sets of gene expression profiles of pancreatic cancer/normal tissue(GSE16515 and GSE15471) were collected from the Gene Expression Omnibus.Significance analysis of microarrays algorithm was used to screen differentially expressed genes related to pancreatic cancer. Gene Ontology(GO) analysis and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway analysis were used to analyze the functional enrichment of the differentially expressed genes. Protein interaction data containing only differentially expressed genes was downloaded from String database and screened. Module mining was carried out by Cytoscape software and ClusterOne plug-in. The interaction relationship between the modules was analyzed and the pivot nodes between the functional modules were determined according to the information of the functional modules and the data of reliable protein interaction network.RESULTS Based on the above two data sets of pancreatic tissue total gene expression, 6098 and 12928 differentially expressed genes were obtained by analysis of genes with higher phenotypic correlation. After extracting the intersection of the two differential gene sets, 4870 genes were determined. GO analysis showed that 14 significant functional items including negative regulation of protein ubiquitination were closely related to autophagy. A total of 986 differentially expressed genes were enriched in these functional items. After eliminating the autophagy related genes of human cancer cells which had been defined, 347 differentially expressed genes were obtained. KEGG pathway analysis showed that the pathways hsa04144 and hsa04020 were related to autophagy. In addition,65 clustering modules were screened after the protein interaction network was constructed based on String database, and module 32 contains the LC3 gene,which interacts with multiple autophagy-related genes. Moreover, ubiquitin C acts as a pivot node in functional modules to connect multiple modules related to pancreatic cancer and autophagy.CONCLUSION Three hundred and forty-seven genes associated with autophagy in human pancreatic cancer were concentrated, and a key gene ubiquitin C which is closely related to the occurrence of PNI was determined, suggesting that LC3 may influence the PNI and prognosis of pancreatic cancer through ubiquitin C.展开更多
Protein-protein interactions （PPIs） have been widely studied to understand the biological processes or molecular functions associated with different disease systems like cancer. While focused studies on individual c...Protein-protein interactions （PPIs） have been widely studied to understand the biological processes or molecular functions associated with different disease systems like cancer. While focused studies on individual cancers have generated valuable information, global and comparative analysis of datasets from different cancer types has not been done. In this work, we carried out bioinformatic analysis of PPIs corresponding to differentially expressed genes from microarrays of various tumor tissues （belonging to bladder, colon, kidney and thyroid cancers） and compared their associated biological processes and molecular functions （based on Gene Ontology terms）. We identified a set of processes or functions that are common to all these cancers, as well as those that are specific to only one or partial cancer types. Similarly, protein interaction networks in nucleic acid metabolism were compared to identify the common/specific clusters of proteins across different cancer types. Our results provide a basis for further experimental investigations to study protein interaction networks associated with cancer. The methodology developed in this work can also be applied to study similar disease systems.展开更多
目的检测肺癌患者支气管肺泡灌洗液(bronchoalveolar lavage fluid,BALF)中凋亡相关蛋白激酶样蛋白1(death-associated protein kinase like 1,DAPL1)和错配修复基因(Mut L homologue l,MLH1)甲基化水平,进一步研究基因甲基化对早期肺...目的检测肺癌患者支气管肺泡灌洗液(bronchoalveolar lavage fluid,BALF)中凋亡相关蛋白激酶样蛋白1(death-associated protein kinase like 1,DAPL1)和错配修复基因(Mut L homologue l,MLH1)甲基化水平,进一步研究基因甲基化对早期肺癌的诊断价值及其与临床病理特征的关系。方法回顾性选取2022年1月~2024年1月蒙城县第二人民医院收治的疑似早期肺癌患者142例,根据最终病理学结果分为肺癌组(n=82)和肺部良性病变组(n=60)。采用实时定量聚合酶链反应(qRT-PCR)法检测两组BALF样本中DAPL1和MLH1甲基化水平;分析DAPL1和MLH1甲基化对早期肺癌的临床诊断价值及其与肺癌患者临床病理特征的关系。结果肺癌组患者BALF中DAPL1和MLH1基因甲基化水平分别为53.66%(44/82),56.10%(46/82),明显高于良性病变组的11.67%(7/60)和18.33%(11/60),差异具有统计学意义(χ^(2)=56.544,20.565,均P<0.05)。DAPL1和MLH1基因甲基化诊断早期肺癌的敏感度分别为53.66%(44/82)和56.10%(46/82),特异度分别为88.33%(53/60)和81.67%(49/60),准确度分别为68.31%(97/142)和66.90%(95/142);DAPL1甲基化联合MLH1甲基化诊断早期肺癌的敏感度和准确度分别为86.59%(71/82),85.92%(122/142),均高于单一指标(Z=24.411,16.450,均P<0.05)。肺癌患者BALF中DAPL1和MLH1基因甲基化水平与临床分期、吸烟史及淋巴结转移密切相关(χ^(2)=5.493,13.083;8.167,6.946;9.303,4.523,均P<0.05)。Spearman相关性显示,DAPL1和MLH1基因甲基化与肺癌患者临床分期、吸烟史及淋巴结转移均呈正相关(r=0.523,0.602;0.548,0.498;0.630,0.524,均P<0.05)。结论BALF中DAPL1和MLH1基因甲基化检测对于早期肺癌具有较高的临床诊断价值,且两者基因甲基化水平与肺癌患者病情进展及吸烟史有关。展开更多
目的探索乳腺癌/卵巢癌易感基因1相关蛋白1(breast/ovarian cancer susceptibility gene 1 associated protein 1,BAP1)对人源恶性胶质瘤发生、发展的作用与BAP1作为恶性胶质瘤临床诊断标志物的可行性。方法基于基因表达综合数据库(gene...目的探索乳腺癌/卵巢癌易感基因1相关蛋白1(breast/ovarian cancer susceptibility gene 1 associated protein 1,BAP1)对人源恶性胶质瘤发生、发展的作用与BAP1作为恶性胶质瘤临床诊断标志物的可行性。方法基于基因表达综合数据库(gene expression omnibus,GEO)的子数据集GSE4290,GSE90598,分析BAP1在正常组织及胶质瘤组织中的差异性表达情况;受试者工作特征(receiver operating characteristic,ROC)曲线分析BAP1对恶性胶质瘤的早期诊断价值;选取自主收集的非配对28例恶性胶质瘤患者的原发灶组织、5例颅脑外伤患者内减压术切除的非瘤脑组织,采用实时荧光定量PCR(quantitative real-time polymerase chain reaction,qRT-PCR)检测BAP1的表达水平;利用靶向BAP1的特异性小干扰RNAs(small interfering RNAs,siRNAs)瞬时转染U251细胞系,进一步检测其干涉效率;基于流式细胞仪分析BAP1下调的U251细胞系,其细胞周期、凋亡的变化情况。结果生物信息学结果显示,BAP1在恶性胶质瘤组织中的表达水平均低于正常脑组织(GSE4290:1209±18.49 vs 1476±53.90;GSE90598:5.19±0.10 vs 5.65±0.21),差异具有统计学意义(t=5.115,2.267,均P<0.05)。ROC曲线显示,BAP1可高效区分恶性胶质瘤组织与正常脑组织(GSE4290:AUC=0.78;GSE90598:AUC=0.75,均P<0.05)。临床标本结果显示,BAP1在恶性胶质瘤原发灶组织中的表达水平显著低于非瘤脑组织(0.27±0.04 vs 1.06±0.07),差异具有统计学意义(t=10.22,P<0.001)。在U251细胞系中下调BAP1的表达,其细胞周期中S期细胞比例明显增多,由17.59%分别增至27.21%(siBAP1-1)和25.79%(siBAP1-2),差异具有统计学意义(t=6.576,6.642,均P<0.01),而细胞凋亡水平则有所下降,由10.17%分别降至2.70%(siBAP-1)和3.00%(siBAP-2),差异具有统计学意义(t=10.31,9.428,均P<0.01)。结论组蛋白H2A去泛素化酶BAP1能够通过抑制恶性胶质瘤细胞周期快速进展并促进其凋亡,进而发挥肿瘤抑癌基因的功能,可作为潜在的恶性胶质瘤临床诊断标志物。展开更多
Prostate-associated gene 4 （PAGE4） is a remarkably prostate-specific Cancer/Testis Antigen that is highly upregulated in the human fetal prostate and its diseased states but not in the adult normal gland. PAGE4 is a...Prostate-associated gene 4 （PAGE4） is a remarkably prostate-specific Cancer/Testis Antigen that is highly upregulated in the human fetal prostate and its diseased states but not in the adult normal gland. PAGE4 is an intrinsically disordered protein （IDP） that functions as a stress-response protein to suppress reactive oxygen species as well as prevent DNA damage. In addition, PAGE4 is also a transcriptional regulator that potentiates transactivation by the oncogene c-Jun, c-Jun forms the AP-1 complex by heterodimerizing with members of the Fos family and plays an important role in the development and pathology of the prostate gland, underscoring the importance of the PAGE4/c-Jun interaction. HIPK1, also a component of the stress-response pathway, phosphorylates PAGE4 at T51 which is critical for its transcriptional activity. Phosphorylation induces conformational and dynamic switching in the PAGE4 ensemble leading to a new cellular function. Finally, bioinformatics evidence suggests that the PAGE4 mRNA could be alternatively spliced resulting in four potential isoforms of the polypeptide alluding to the possibility of a range of conformational ensembles with latent functions. Considered together, the data suggest that PAGE4 may represent the first molecular link between stress and prostate cancer （PCa）. Thus, pharmacologically targeting PAGE4 may be a novel opportunity for treating and managing patients with PCa, especially patients with low-risk disease.展开更多
目的研究非肌层浸润性膀胱癌(non-muscle invasive bladder cancer,NMIBC)患者血清长链非编码RNA尿路上皮癌相关基因1[(LncRNA)upregulated in bladder cancer 1,UBC1]、帕金森病相关蛋白-1(DJ-1)的表达情况,分析两者对NMIBC患者预后的...目的研究非肌层浸润性膀胱癌(non-muscle invasive bladder cancer,NMIBC)患者血清长链非编码RNA尿路上皮癌相关基因1[(LncRNA)upregulated in bladder cancer 1,UBC1]、帕金森病相关蛋白-1(DJ-1)的表达情况,分析两者对NMIBC患者预后的影响。方法选择2018年2月~2019年2月于河南科技大学第一附属医院接受经尿道膀胱肿瘤电切(TURBT)治疗的120例NMIBC患者为研究对象(NMIBC组),以同期健康体检的60例健康人群为对照组。应用实时荧光定量PCR检测各组血清UBC1水平。应用酶联免疫吸附实验检测各组血清DJ-1水平。比较不同临床病理特征NMIBC患者血清UBC1和DJ-1表达差异。Kaplan-Meier生存曲线分析血清UBC1和DJ-1表达对NMIBC患者无进展生存预后的影响。单因素及多因素COX回归分析影响NMIBC患者无进展生存预后的因素。结果相比于对照组,NMIBC组血清UBC1(4.19±0.48 vs 1.27±0.29)和DJ-1(8.62±3.60 ng/ml vs 4.31±1.07 ng/ml)水平升高,差异具有统计学意义(t=43.300,12.117,均P<0.05)。肿瘤T1期、高级别NMIBC患者血清中UBC1(5.21±0.56,5.11±0.53),DJ-1(11.28±3.98 ng/ml,10.50±3.87 ng/ml)表达分别高于Ta/Tis期、低级别患者(3.79±0.43,3.64±0.44;7.34±3.04ng/ml,7.49±3.23 ng/ml),差异具有统计学意义(t=15.314,5.966;16.393,4.584,均P<0.05)。UBC1高表达组和低表达组患者的平均无进展生存时间分别为28.17±3.68个月和33.59±3.32个月。UBC1高表达组患者累积无进展生存时间低于UBC1低表达组患者,差异具有统计学意义(Log-Rank testχ^(2)=6.681,P<0.05)。DJ-1高表达组和低表达组平均无进展生存时间分别为27.34±3.29个月和34.27±3.54个月。DJ-1高表达组患者累积无进展生存时间低于DJ-1低表达组患者,差异具有统计学意义(Log-Rank testχ^(2)=11.262,P<0.05)。肿瘤分期T1期(HR=1.613,95%CI=1.223~2.126)、肿瘤分级高级别(HR=1.917,95%CI=1.314~2.799),UBC1高表达(HR=1.937,95%CI=1.229~2.745)和DJ-1高表达(HR=1.738,95%CI=1.246~2.426)是影响NMIBC患者无进展生存预后的独立危险因素。结论NMIBC患者血清UBC1和DJ-1表达升高,两者表达与肿瘤分期及肿瘤分级有关,是影响NMIBC患者无进展生存预后的独立因素。展开更多
基金Supported by the National Natural Science Foundation of China,No.U1504815 and No.U1504808
文摘BACKGROUND Pancreatic cancer is a highly invasive malignant tumor. Expression levels of the autophagy-related protein microtubule-associated protein 1 A/1 B-light chain 3(LC3) and perineural invasion(PNI) are closely related to its occurrence and development. Our previous results showed that the high expression of LC3 was positively correlated with PNI in the patients with pancreatic cancer. In this study, we further searched for differential genes involved in autophagy of pancreatic cancer by gene expression profiling and analyzed their biological functions in pancreatic cancer, which provides a theoretical basis for elucidating the pathophysiological mechanism of autophagy in pancreatic cancer and PNI.AIM To identify differentially expressed genes involved in pancreatic cancer autophagy and explore the pathogenesis at the molecular level.METHODS Two sets of gene expression profiles of pancreatic cancer/normal tissue(GSE16515 and GSE15471) were collected from the Gene Expression Omnibus.Significance analysis of microarrays algorithm was used to screen differentially expressed genes related to pancreatic cancer. Gene Ontology(GO) analysis and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway analysis were used to analyze the functional enrichment of the differentially expressed genes. Protein interaction data containing only differentially expressed genes was downloaded from String database and screened. Module mining was carried out by Cytoscape software and ClusterOne plug-in. The interaction relationship between the modules was analyzed and the pivot nodes between the functional modules were determined according to the information of the functional modules and the data of reliable protein interaction network.RESULTS Based on the above two data sets of pancreatic tissue total gene expression, 6098 and 12928 differentially expressed genes were obtained by analysis of genes with higher phenotypic correlation. After extracting the intersection of the two differential gene sets, 4870 genes were determined. GO analysis showed that 14 significant functional items including negative regulation of protein ubiquitination were closely related to autophagy. A total of 986 differentially expressed genes were enriched in these functional items. After eliminating the autophagy related genes of human cancer cells which had been defined, 347 differentially expressed genes were obtained. KEGG pathway analysis showed that the pathways hsa04144 and hsa04020 were related to autophagy. In addition,65 clustering modules were screened after the protein interaction network was constructed based on String database, and module 32 contains the LC3 gene,which interacts with multiple autophagy-related genes. Moreover, ubiquitin C acts as a pivot node in functional modules to connect multiple modules related to pancreatic cancer and autophagy.CONCLUSION Three hundred and forty-seven genes associated with autophagy in human pancreatic cancer were concentrated, and a key gene ubiquitin C which is closely related to the occurrence of PNI was determined, suggesting that LC3 may influence the PNI and prognosis of pancreatic cancer through ubiquitin C.
基金supported by the start-up funds to CG from SUNY-Albanypartly by the Academic Research Enhancement Award(1R15GM080681-01) to CG from NIGMS/NIH
文摘Protein-protein interactions （PPIs） have been widely studied to understand the biological processes or molecular functions associated with different disease systems like cancer. While focused studies on individual cancers have generated valuable information, global and comparative analysis of datasets from different cancer types has not been done. In this work, we carried out bioinformatic analysis of PPIs corresponding to differentially expressed genes from microarrays of various tumor tissues （belonging to bladder, colon, kidney and thyroid cancers） and compared their associated biological processes and molecular functions （based on Gene Ontology terms）. We identified a set of processes or functions that are common to all these cancers, as well as those that are specific to only one or partial cancer types. Similarly, protein interaction networks in nucleic acid metabolism were compared to identify the common/specific clusters of proteins across different cancer types. Our results provide a basis for further experimental investigations to study protein interaction networks associated with cancer. The methodology developed in this work can also be applied to study similar disease systems.
文摘目的检测肺癌患者支气管肺泡灌洗液(bronchoalveolar lavage fluid,BALF)中凋亡相关蛋白激酶样蛋白1(death-associated protein kinase like 1,DAPL1)和错配修复基因(Mut L homologue l,MLH1)甲基化水平,进一步研究基因甲基化对早期肺癌的诊断价值及其与临床病理特征的关系。方法回顾性选取2022年1月~2024年1月蒙城县第二人民医院收治的疑似早期肺癌患者142例,根据最终病理学结果分为肺癌组(n=82)和肺部良性病变组(n=60)。采用实时定量聚合酶链反应(qRT-PCR)法检测两组BALF样本中DAPL1和MLH1甲基化水平;分析DAPL1和MLH1甲基化对早期肺癌的临床诊断价值及其与肺癌患者临床病理特征的关系。结果肺癌组患者BALF中DAPL1和MLH1基因甲基化水平分别为53.66%(44/82),56.10%(46/82),明显高于良性病变组的11.67%(7/60)和18.33%(11/60),差异具有统计学意义(χ^(2)=56.544,20.565,均P<0.05)。DAPL1和MLH1基因甲基化诊断早期肺癌的敏感度分别为53.66%(44/82)和56.10%(46/82),特异度分别为88.33%(53/60)和81.67%(49/60),准确度分别为68.31%(97/142)和66.90%(95/142);DAPL1甲基化联合MLH1甲基化诊断早期肺癌的敏感度和准确度分别为86.59%(71/82),85.92%(122/142),均高于单一指标(Z=24.411,16.450,均P<0.05)。肺癌患者BALF中DAPL1和MLH1基因甲基化水平与临床分期、吸烟史及淋巴结转移密切相关(χ^(2)=5.493,13.083;8.167,6.946;9.303,4.523,均P<0.05)。Spearman相关性显示,DAPL1和MLH1基因甲基化与肺癌患者临床分期、吸烟史及淋巴结转移均呈正相关(r=0.523,0.602;0.548,0.498;0.630,0.524,均P<0.05)。结论BALF中DAPL1和MLH1基因甲基化检测对于早期肺癌具有较高的临床诊断价值,且两者基因甲基化水平与肺癌患者病情进展及吸烟史有关。
文摘目的探索乳腺癌/卵巢癌易感基因1相关蛋白1(breast/ovarian cancer susceptibility gene 1 associated protein 1,BAP1)对人源恶性胶质瘤发生、发展的作用与BAP1作为恶性胶质瘤临床诊断标志物的可行性。方法基于基因表达综合数据库(gene expression omnibus,GEO)的子数据集GSE4290,GSE90598,分析BAP1在正常组织及胶质瘤组织中的差异性表达情况;受试者工作特征(receiver operating characteristic,ROC)曲线分析BAP1对恶性胶质瘤的早期诊断价值;选取自主收集的非配对28例恶性胶质瘤患者的原发灶组织、5例颅脑外伤患者内减压术切除的非瘤脑组织,采用实时荧光定量PCR(quantitative real-time polymerase chain reaction,qRT-PCR)检测BAP1的表达水平;利用靶向BAP1的特异性小干扰RNAs(small interfering RNAs,siRNAs)瞬时转染U251细胞系,进一步检测其干涉效率;基于流式细胞仪分析BAP1下调的U251细胞系,其细胞周期、凋亡的变化情况。结果生物信息学结果显示,BAP1在恶性胶质瘤组织中的表达水平均低于正常脑组织(GSE4290:1209±18.49 vs 1476±53.90;GSE90598:5.19±0.10 vs 5.65±0.21),差异具有统计学意义(t=5.115,2.267,均P<0.05)。ROC曲线显示,BAP1可高效区分恶性胶质瘤组织与正常脑组织(GSE4290:AUC=0.78;GSE90598:AUC=0.75,均P<0.05)。临床标本结果显示,BAP1在恶性胶质瘤原发灶组织中的表达水平显著低于非瘤脑组织(0.27±0.04 vs 1.06±0.07),差异具有统计学意义(t=10.22,P<0.001)。在U251细胞系中下调BAP1的表达,其细胞周期中S期细胞比例明显增多,由17.59%分别增至27.21%(siBAP1-1)和25.79%(siBAP1-2),差异具有统计学意义(t=6.576,6.642,均P<0.01),而细胞凋亡水平则有所下降,由10.17%分别降至2.70%(siBAP-1)和3.00%(siBAP-2),差异具有统计学意义(t=10.31,9.428,均P<0.01)。结论组蛋白H2A去泛素化酶BAP1能够通过抑制恶性胶质瘤细胞周期快速进展并促进其凋亡,进而发挥肿瘤抑癌基因的功能,可作为潜在的恶性胶质瘤临床诊断标志物。
文摘Prostate-associated gene 4 （PAGE4） is a remarkably prostate-specific Cancer/Testis Antigen that is highly upregulated in the human fetal prostate and its diseased states but not in the adult normal gland. PAGE4 is an intrinsically disordered protein （IDP） that functions as a stress-response protein to suppress reactive oxygen species as well as prevent DNA damage. In addition, PAGE4 is also a transcriptional regulator that potentiates transactivation by the oncogene c-Jun, c-Jun forms the AP-1 complex by heterodimerizing with members of the Fos family and plays an important role in the development and pathology of the prostate gland, underscoring the importance of the PAGE4/c-Jun interaction. HIPK1, also a component of the stress-response pathway, phosphorylates PAGE4 at T51 which is critical for its transcriptional activity. Phosphorylation induces conformational and dynamic switching in the PAGE4 ensemble leading to a new cellular function. Finally, bioinformatics evidence suggests that the PAGE4 mRNA could be alternatively spliced resulting in four potential isoforms of the polypeptide alluding to the possibility of a range of conformational ensembles with latent functions. Considered together, the data suggest that PAGE4 may represent the first molecular link between stress and prostate cancer （PCa）. Thus, pharmacologically targeting PAGE4 may be a novel opportunity for treating and managing patients with PCa, especially patients with low-risk disease.
文摘目的研究非肌层浸润性膀胱癌(non-muscle invasive bladder cancer,NMIBC)患者血清长链非编码RNA尿路上皮癌相关基因1[(LncRNA)upregulated in bladder cancer 1,UBC1]、帕金森病相关蛋白-1(DJ-1)的表达情况,分析两者对NMIBC患者预后的影响。方法选择2018年2月~2019年2月于河南科技大学第一附属医院接受经尿道膀胱肿瘤电切(TURBT)治疗的120例NMIBC患者为研究对象(NMIBC组),以同期健康体检的60例健康人群为对照组。应用实时荧光定量PCR检测各组血清UBC1水平。应用酶联免疫吸附实验检测各组血清DJ-1水平。比较不同临床病理特征NMIBC患者血清UBC1和DJ-1表达差异。Kaplan-Meier生存曲线分析血清UBC1和DJ-1表达对NMIBC患者无进展生存预后的影响。单因素及多因素COX回归分析影响NMIBC患者无进展生存预后的因素。结果相比于对照组,NMIBC组血清UBC1(4.19±0.48 vs 1.27±0.29)和DJ-1(8.62±3.60 ng/ml vs 4.31±1.07 ng/ml)水平升高,差异具有统计学意义(t=43.300,12.117,均P<0.05)。肿瘤T1期、高级别NMIBC患者血清中UBC1(5.21±0.56,5.11±0.53),DJ-1(11.28±3.98 ng/ml,10.50±3.87 ng/ml)表达分别高于Ta/Tis期、低级别患者(3.79±0.43,3.64±0.44;7.34±3.04ng/ml,7.49±3.23 ng/ml),差异具有统计学意义(t=15.314,5.966;16.393,4.584,均P<0.05)。UBC1高表达组和低表达组患者的平均无进展生存时间分别为28.17±3.68个月和33.59±3.32个月。UBC1高表达组患者累积无进展生存时间低于UBC1低表达组患者,差异具有统计学意义(Log-Rank testχ^(2)=6.681,P<0.05)。DJ-1高表达组和低表达组平均无进展生存时间分别为27.34±3.29个月和34.27±3.54个月。DJ-1高表达组患者累积无进展生存时间低于DJ-1低表达组患者,差异具有统计学意义(Log-Rank testχ^(2)=11.262,P<0.05)。肿瘤分期T1期(HR=1.613,95%CI=1.223~2.126)、肿瘤分级高级别(HR=1.917,95%CI=1.314~2.799),UBC1高表达(HR=1.937,95%CI=1.229~2.745)和DJ-1高表达(HR=1.738,95%CI=1.246~2.426)是影响NMIBC患者无进展生存预后的独立危险因素。结论NMIBC患者血清UBC1和DJ-1表达升高,两者表达与肿瘤分期及肿瘤分级有关,是影响NMIBC患者无进展生存预后的独立因素。
