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| Content Provider | frontiers |
|---|---|
| Author | Yang, Yiren Pang, Qingyang Hua, Meimian Huangfu, Zhao Yan, Rui Liu, Wenqiang Zhang, Wei Shi, Xiaolei Xu, Yifan Shi, Jiazi |
| Abstract | Purpose: ccRCC is the most common pathology type in kidney cancer. However, the prognosis of advanced ccRCC is unsatisfactory. Thus, early diagnosis becomes one of the most important research priorities of ccRCC. However, currently available studies about ccRCC lack urine-related further studies. In this study, we applied proteomics to search urinary biomarkers to assist early diagnosis of ccRCC. In addition, we constructed a prognostic model to assist judge patients’ prognosis.Methods: Urine which was used to perform proteomics was collected from 12 ccRCC patients and 11 non-tumor patients with no urinary system diseases. The urine of 12 patients with ccRCC confirmed by pathological examination after surgery was collected before operatoin. Bioinformatics analysis was used to describe the urinary proteomics landscape of these patients with ccRCC. The top ten proteins with the highest expression content were selected as the basis for subsequent validation. Urine from 46 ccRCC patients and 45 control patients were collected to use for verification by ELISA. In order to assess the prognostic value of urine proteomics, a prognostic model was constructed by COX regression analysis on the intersection of RNA-sequencing data in The Cancer Genome Atlas (TCGA) database and our urine proteomic data.Results: 133 proteins differentially expressed in the urine were found and 85 proteins were identified up-regulated while 48 down-regulated. The results showed that PKHD1L1, ANGPTL6, FABP4 and C3 were statistically significant (P<0.05). We performed multivariate logistic regression analysis and plotted a nomogram. Receiver operating characteristic (ROC) curve indicted that the diagnostic efficiency of combined indicators is satisfactory (AUC=0.835). Furthermore, the prognostic value of the urine proteomics was explored through the intersection between urine proteomics and TCGA RNA-seq data. Thus, COX regression analysis showed that VSIG4, HLA-DRA, SERPINF1, and IGLV2-23 were statistically significant (P<0.05). Conclusion: Our study indicated that the application of urine proteomics to explore diagnostic biomarkers and to construct prognostic models of renal clear cell carcinoma is of certain clinical value. PKHD1L1, ANGPTL6, FABP4 and C3 can assist to diagnose ccRCC. The prognostic model constituted of VSIG4, HLA-DRA, SERPINF1, and IGLV2-23 can significantly predict the prognosis of ccRCC patients. |
| ISSN | 2234943X |
| DOI | 10.3389/fonc.2023.1170567 |
| Volume Number | 13 |
| Journal | Frontiers in Oncology |
| Language | English |
| Publisher Date | 2023-05-16 |
| Access Restriction | Open |
| Subject Keyword | Clear cell renal cell carcinoma Proteomics Urine Biomarker Prognosis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cancer Research Oncology |
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