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Lin M, Wang C, Zhou J. Development and validation of prognostic nomogram for elderly patients with clear cell renal cell carcinoma based on the SEER database. Medicine (Baltimore) 2023; 102:e35694. [PMID: 37861499 PMCID: PMC10589540 DOI: 10.1097/md.0000000000035694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 09/27/2023] [Indexed: 10/21/2023] Open
Abstract
This study sought to establish nomogram models of overall survival (OS) in patients with elderly clear cell renal cell carcinoma (ECCRCC). The Surveillance, Epidemiology, and End Results database provided data of the ECCRCC-afflicted patients diagnosed during the period from 2010 to 2015. This data was subsequently segregated into the training and validation sets randomly in a 7:3 ratio. The calibration curves, the receiver operating characteristic curves, the decision curve analysis and the Concordance index (C-index) were applied for the model evaluation. 9201 eligible cases from 2010 to 2015 were extracted; 6441 were included in the training cohort and 2760 in the validation cohort. The C-index for the training and validation sets were 0.710 and 0.709, respectively. The receiver operating characteristic and decision curve analysis curves demonstrated that nomograms outperformed the AJCC stage in predictive performance. Moreover, the nomogram was found to match closely with the actual observation, as indicated by the calibration plots. To make predictions with regard to the survival of the ECCRCC-afflicted individuals, and as a guide for treatment, the new nomogram could be used.
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Affiliation(s)
- Mingxin Lin
- The First Affiliated Hospital of Dalian Medical University, Dalian City, China
| | - Cong Wang
- The First Affiliated Hospital of Dalian Medical University, Dalian City, China
| | - Jianan Zhou
- The First Affiliated Hospital of Dalian Medical University, Dalian City, China
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Tian S, Sun S, Mao W, Qian S, Zhang L, Zhang G, Xu B, Chen M. Development and Validation of Prognostic Nomogram for Young Patients with Kidney Cancer. Int J Gen Med 2021; 14:5091-5103. [PMID: 34511991 PMCID: PMC8420796 DOI: 10.2147/ijgm.s331627] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 08/24/2021] [Indexed: 11/23/2022] Open
Abstract
Background The aim of this study was to establish a nomogram model to evaluate the prognosis of early-onset kidney cancer (EOKC) in terms of overall survival (OS) and cancer-specific survival (CSS). Methods Patients with EOKC diagnosed between 2004 and 2015 were collected from Surveillance, Epidemiology and End Results (SEER) and randomly assigned to the training and validation set at a ratio of 2 to 1. Important variables for constructing nomograms were screened by univariate and multivariate Cox analysis. The nomogram model was evaluated using concordance index (C-index), decision curve analysis (DCA) curves, and receiver operating characteristic (ROC) curves. Results A total of 12,526 EOKC patients were included in the study. OS nomogram was constructed based on gender, age, race, grade, AJCC stage, TNM stage, histology, chemotherapy and radiotherapy. CSS nomogram was constructed based on listed above except gender. In the external validation, the C-index for the OS nomogram was 0.855 (95% CI 0.834–0.976), and the C-index for the CSS nomogram was 0.938 (0.925–0.951). High-quality calibration curves were noted in both OS and CSS nomogram models. ROC and DCA curves showed that nomograms had better predictive performance than TNM stage and SEER stage. Conclusion The nomogram model provides an applicable tool for evaluating the OS and CSS prognosis of EOKC.
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Affiliation(s)
- Shengwei Tian
- Department of Urology, Zhongda Hospital, Southeast University, Nanjing, 210009, People's Republic of China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, 210009, People's Republic of China
| | - Si Sun
- Department of Urology, Zhongda Hospital, Southeast University, Nanjing, 210009, People's Republic of China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, 210009, People's Republic of China
| | - Weipu Mao
- Department of Urology, Zhongda Hospital, Southeast University, Nanjing, 210009, People's Republic of China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, 210009, People's Republic of China
| | - Siwei Qian
- Department of Urology, Zhongda Hospital, Southeast University, Nanjing, 210009, People's Republic of China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, 210009, People's Republic of China
| | - Lei Zhang
- Department of Urology, Zhongda Hospital, Southeast University, Nanjing, 210009, People's Republic of China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, 210009, People's Republic of China
| | - Guangyuan Zhang
- Department of Urology, Zhongda Hospital, Southeast University, Nanjing, 210009, People's Republic of China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, 210009, People's Republic of China
| | - Bin Xu
- Department of Urology, Zhongda Hospital, Southeast University, Nanjing, 210009, People's Republic of China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, 210009, People's Republic of China
| | - Ming Chen
- Department of Urology, Zhongda Hospital, Southeast University, Nanjing, 210009, People's Republic of China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, 210009, People's Republic of China.,Department of Urology, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, 211200, People's Republic of China
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Chen G, Zhang Y, Wu X. 786-0 Renal cancer cell line-derived exosomes promote 786-0 cell migration and invasion in vitro.. Oncol Lett 2014; 7:1576-1580. [PMID: 24765179 PMCID: PMC3997692 DOI: 10.3892/ol.2014.1962] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 01/27/2014] [Indexed: 11/27/2022] Open
Abstract
Emerging evidence indicates that cancer-derived exosomes contribute to angiogenesis, tumor immunology and invasion. However, whether cancer cell-derived exosomes regulate the migration and invasion of the cancer cell itself, and the underlying mechanisms are not well understood. In the present study, exosomes derived from the 786-0 human renal cancer cell line were isolated, purified and 100 μg/ml were co-cultured with 786-0 cells for 24 h. The 786-0 cells were harvested for a cell invasion and migration assay. The expression of chemokine receptor type 4 (CXCR4) and matrix metalloproteinase-9 (MMP-9) in the 786-0 cells was examined by western blot analysis and revealed that the migration and invasion capabilities of the 786-0 cells were increased, however, the cell adhesion abilities were decreased as a result of the 24-h treatment with 786-0-derived exosomes. Furthermore, the expression levels of CXCR4 and MMP-9 in the 786-0 cells were increased. In conclusion, the 786-0 renal cancer cell line-derived exosomes increased migration and invasion, however, they decreased the adhesion ability of the 786-0 cells. The exosomes may have increased the CXCR4 and MMP-9 expression levels in the 786-0 cells. These findings indicated that renal tumor-derived exosomes may contribute to renal cancer development and progression.
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Affiliation(s)
- Gang Chen
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Yao Zhang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
| | - Xiaohou Wu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Yuzhong, Chongqing 400016, P.R. China
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