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Dong L, Ying X, Tao S, Guang-Peng Z, Tai-Ming S. Diabetes Is a Risk Factor for the Prognosis of Patients with Bladder Cancer: A Meta-Analysis. JOURNAL OF ONCOLOGY 2022; 2022:1997507. [PMID: 36199796 PMCID: PMC9529383 DOI: 10.1155/2022/1997507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 08/17/2022] [Indexed: 11/29/2022]
Abstract
Objective To systematically evaluate the impact of diabetes on the prognosis of bladder cancer patients after radical cystectomy (RC). Methods PubMed, Embase, and Cochrane Library databases were selected from inception to October 2021. The studies on the effects of diabetes on bladder cancer patients after RC were included for analysis. The inclusion and exclusion criteria were independently selected for literature screening, the quality of the included studies was evaluated, and data were extracted. Results A total of 5 cohort studies were included, with a total of 2 661 subjects, including 391 cases in the diabetic group, non-diabetes. Meta-analysis results show that diabetes increases the overall risk of death in patients after RC (HR = 1.36, 95% CI: 1.30 ∼ 1.43, P < 0.001) and the risk of tumor-specific death (HR = 1.59, 95% CI: 1.29 ∼ 1.95, P < 0.001). Sensitivity analysis shows that the stability of this study is well. Conclusion Diabetes was an independent risk factor in terms of overall and cancer-specific survival in patients who underwent RC.
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Affiliation(s)
- Lv Dong
- Department of Urology, Deyang People's Hospital, Deyang, Sichuan, China
| | - Xiang Ying
- Department of Urology, Eastern Hospital, Sichuan Academy of Medical Sciences &Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Song Tao
- Department of Urology, Eastern Hospital, Sichuan Academy of Medical Sciences &Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Zhou Guang-Peng
- Department of Endocrinology, Eastern Hospital, Sichuan Academy of Medical Sciences &Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Shen Tai-Ming
- Health Management Center, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
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2
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Huang W, Zhang C, Xiong S, Zhou X, Wang G, Guo J. miR-1307-5p suppresses proliferation and tumorigenesis of bladder cancer via targeting MDM4 and the Hippo signaling pathway. Discov Oncol 2022; 13:57. [PMID: 35778656 PMCID: PMC9249964 DOI: 10.1007/s12672-022-00512-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/02/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Emerging evidence has shown that miR-1307-5p is involved in tumorigenesis of various types of cancer. This study aims to assess the role and mechanism of miR-1307-5p in bladder cancer. METHODS Bioinformatics analyses were carried out with clinical datasets in the public domains. To investigate the cellular functions of miR-1307-5p, assays of cell proliferation, cell cycle and cell apoptosis were conducted in bladder cancer cell lines and xenografts. The molecular mechanisms of miR-1307-5p were studied using luciferase reporter, RT-qPCR, and western blotting analyses. RESULTS We found that miR-1307-5p expression was significantly decreased in bladder cancer tissues, and its lower level was associated with poor prognosis. Cellular assays indicated the tumor-suppressor roles of miR-1307-5p were linked to cell proliferation, cell cycle inhibition, and cell apoptosis promotion. Conversely, anti-miR-1307-5p facilitated cell proliferation and cell cycle and antagonized cell apoptosis. In the in vivo setting, tumor growth was suppressed by miR-1307-5p overexpression. We found by bioinformatic and luciferase reporter assays that miR-1307-5p targets the 3'-UTR of MDM4, a well-known Inhibitor of TP53-mediated transactivation, cell cycle arrest and apoptosis. Specifically, miR-1307-5p markedly reduced MDM4 proteins expression, decreased the expression of Ki-67 and PCNA, and increased the expression of cleaved-caspase 3 and caspase 9. While in parallel assays, anti-miR-1307-5p had opposite effects. In addition, we found that miR-1307-5p overexpression would suppress bladder cancer cell growth by inhibiting MDM4 and its downstream Hippo pathway. CONCLUSION In bladder cancer, miR-1307-5p functions as a tumor suppressor and has the potentials as biomarker and therapeutical agent.
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Affiliation(s)
- Wei Huang
- Department of Urology, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng street, Donghu District, Nanchang, 330006, Jiangxi, China
| | - Cheng Zhang
- Department of Urology, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng street, Donghu District, Nanchang, 330006, Jiangxi, China
| | - Shida Xiong
- Department of Urology, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng street, Donghu District, Nanchang, 330006, Jiangxi, China
| | - Xiaocheng Zhou
- Department of Urology, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng street, Donghu District, Nanchang, 330006, Jiangxi, China
| | - Gongxian Wang
- Department of Urology, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng street, Donghu District, Nanchang, 330006, Jiangxi, China.
| | - Ju Guo
- Department of Urology, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng street, Donghu District, Nanchang, 330006, Jiangxi, China.
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3
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Shi S, Ma T, Xi Y. Characterization of the immune cell infiltration landscape in bladder cancer to aid immunotherapy. Arch Biochem Biophys 2021; 708:108950. [PMID: 34118215 DOI: 10.1016/j.abb.2021.108950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/08/2021] [Accepted: 05/29/2021] [Indexed: 12/15/2022]
Abstract
The tumor microenvironment (TME) is composed mainly of tumor cells, tumorinfiltrating immune cells, and matrix components. Recent clinical studies have indicated that tumor immune cell infiltration (ICI) is related to the sensitivity of immunotherapy and the prognosis of patients with bladder cancer (BC). Nevertheless, up to now, the landscape of immune infiltration in BC has not been clearly defined. Here we present two algorithms to reveal the landscape of ICI in 277 cases of BC. Two kinds of ICI patterns were established, and ICI scores were based on the analysis of the main components. In sub-types with high ICI scores, we found highly expressed immunecheckpoint and activated transforming growth factor b and WNT signal pathways. These might be the cause of poor prognosis. A low ICI score indicated a better prognosis. Our study showed that ICI scores in immunotherapy could be a valid biomarker for the prognosis of patients and a predictive indicator. The evaluation of ICI patterns of a larger cohort of samples would expand our cognition of TME, and the present study might guide the strategies of immunotherapy for patients with BC.
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Affiliation(s)
- Shanping Shi
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Ting Ma
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China
| | - Yang Xi
- Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo, China.
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4
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Ping Q, Shi Y, Yang M, Li H, Zhong Y, Li J, Bi X, Wang C. LncRNA DANCR regulates lymphatic metastasis of bladder cancer via the miR-335/VEGF-C axis. Transl Androl Urol 2021; 10:1743-1753. [PMID: 33968662 PMCID: PMC8100837 DOI: 10.21037/tau-21-226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Substantial evidence indicate that long non-coding RNA (lncRNA) and microRNA (miRNA) act as key role in bladder cancer. Differentiation antagonistic ncRNA (DANCR) could be used as a biomarker in the occurrence and development of cancer. This study aims to explore the mechanism of DANCR/miR-335/VEGF-C axis affecting lymphatic metastasis of bladder cancer. Methods qRT-PCR detects the expression of DANCR in bladder cancer cell lines (SW780, 5637, T24, UM-UC-3) and normal bladder cell lines (SV-HUC-1), and selects T24 cell lines for subsequent experiments. The expression levels of DANCR, miR-335 and VEGF were measured by qRT-PCR, and the dual luciferase reporter gene verified the targeted regulation of DANCR on miR-335 and miR-335 on VEGF. CCK-8, Transwell and Wound healing assay detect the proliferation, invasion and migration ability of bladder cancer cells, Endothelial cell adhesion assay and Western blot further prove the lymphatic metastasis of bladder cancer. Results In this study, DANCR was highly expressed in bladder cancer cell lines. Transfection of si-DANCR significantly inhibits the proliferation, migration, invasion and lymphatic metastasis of bladder cancer cells. Dual luciferase assay confirmed that DANCR targets miR-335/VEGF-C. Transfection of miR-335 mimic promotes the proliferation, migration, invasion and lymphatic metastasis of bladder cancer cells, overexpression of DANCR eliminates the promotion of miR-335 mimic on bladder cancer cells. Further experiments proved that inhibition of miR-335 and overexpression of VEGF-C can reverse the inhibitory effect of silencing DANCR on bladder cancer cells. Conclusions In bladder cancer, DARCR plays an important role, which regulates the proliferation, migration, invasion and lymphatic metastasis of bladder cancer cells through the miR-335/VEGF-C molecular axis.
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Affiliation(s)
- Qinrong Ping
- Department of Urology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Yunqiang Shi
- Department of Urology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Meng Yang
- Department of Urology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Hui Li
- Department of Urology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Yiming Zhong
- Department of Urology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Jian Li
- Department of Urology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Xiaofang Bi
- Department of Urology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Chunhui Wang
- Department of Urology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
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5
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Wu ATH, Srivastava P, Yadav VK, Tzeng DTW, Iamsaard S, Su ECY, Hsiao M, Liu MC. Ovatodiolide, isolated from Anisomeles indica, suppresses bladder carcinogenesis through suppression of mTOR/β-catenin/CDK6 and exosomal miR-21 derived from M2 tumor-associated macrophages. Toxicol Appl Pharmacol 2020; 401:115109. [PMID: 32544403 DOI: 10.1016/j.taap.2020.115109] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 12/22/2022]
Abstract
Bladder cancer (BCa) is the fourth leading cause of cancer deaths worldwide due to its aggressiveness and resistance against therapies. Intricate interactions between cancer cells and the tumor microenvironment (TME) are essential for both disease progression and regression. Thus, interrupting molecular communications within the TME could potentially provide improved therapeutic efficacies. M2-polarized tumor-associated macrophages (M2 TAMs) were shown to contribute to BCa progression and drug resistance. We attempted to provide evidence for ovatodiolide (OV) as a potential therapeutic agent that targets both TME and BCa cells. First, tumor-suppressing functions of OV were determined by cell viability, colony, and tumor-sphere formation assays using a coculture system composed of M2 TAMs/BCa cells. Subsequently, we demonstrated that extracellular vesicles (EVs) isolated from M2 TAMs containing oncomiR-21 and mRNAs, including Akt, STAT3, mTOR, and β-catenin, promoted cisplatin (CDDP) resistance, migration, and tumor-sphere generation in BCa cells, through increasing CDK6, mTOR, STAT3, and β-catenin expression. OV treatment also prevented M2 polarization and reduced EV cargos from M2 TAMs. Finally, in vivo data demonstrated that OV treatment overcame CDDP resistance. OV only and the OV + CDDP combination both resulted in significant reductions in mTOR, β-catenin, CDK6, and miR-21 expression in tumor samples and EVs isolated from serum. Collectively, we demonstrated that M2 TAMs induced malignant properties in BCa cells, in part via oncogenic EVs. OV treatment prevented M2 TAM polarization, reduced EV cargos derived from M2 TAMs, and suppressed β-catenin/mTOR/CDK6 signaling. These findings provide preclinical evidence for OV as a single or adjuvant agent for treating drug-resistant BCa.
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Affiliation(s)
- Alexander T H Wu
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei 11031, Taiwan; Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 114, Taiwan
| | - Prateeti Srivastava
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei 11031, Taiwan; The Program for Translational Medicine, Graduate Institute of Biomedical Informatics, Taipei Medical University, Taipei 11031, Taiwan; Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Vijesh Kumar Yadav
- The Program for Translational Medicine, Graduate Institute of Biomedical Informatics, Taipei Medical University, Taipei 11031, Taiwan; Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - David T W Tzeng
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Sitthichai Iamsaard
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen, Thailand; Research Institute for Human High Performance and Health Promotion (HHP&HP), Khon Kaen University, Khon Kaen, Thailand
| | - Emily Chia-Yu Su
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan; Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Ming-Che Liu
- Department of Urology, Taipei Medical University Hospital, Taipei 11031, Taiwan; Clinical Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan; Graduate Institute of Clinical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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6
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Zhao C, Pan Y, Wang Y, Li Y, Han W, Lu L, Tang W, Li P, Ou Z, Zhang M, Xiong Z, Xu R, Lu Q, Xu Z, Qi L, Wang L, Xu G. A novel cell-free single-molecule unique primer extension resequencing (cf-SUPER) technology for bladder cancer non-invasive detection in urine. Transl Androl Urol 2020; 9:1222-1231. [PMID: 32676405 PMCID: PMC7354286 DOI: 10.21037/tau-19-774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background The clinical diagnostic method for bladder cancer is cystoscopy, an invasive, expensive and inconvenient clinical test. Using urinary cell-free DNA (cfDNA) to develop non-invasive test for bladder cancer was a promising liquid biopsy. Methods To improve the using rate of cfDNA template and decrease the PCR bias for liquid biopsy using urinary cfDNA, we developed a cell-free single-molecule unique primer extension resequencing (cf-SUPER) technology which was done for 29 matched urinary cfDNA and tumor DNA samples of bladder cancer patients to evaluate consistency of mutation profiles. Then, a 22 high mutational frequence genes was selected to form an uriprier panel, which was analyzed in 100 patients (47 bladder cancer cases and 53 controls) using cf-SUPER technology. This performance of the technology was evaluated using bioinformatic tools and clinical samples. Results The study showed that cf-SUPER technology can accurately detect mutations with allele fractions even low as 0.01% and the DNA input as low as 1 ng. The consistency of mutation profiles and clinical pathological diagnose between 29 matched urinary cfDNA and tumor DNA samples was respectively 82.76% and 89.66% by using cf-SUPER technology. Using cf-SUPER technology, the sensitivity and specificity were 98%, 94% respectively for uriprier panel in non-invasive test. Conclusions The preliminary work shows that cf-SUPER technology will be a promising method for liquid biopsy. Focusing urinary cfDNA, the non-invasive diagnose and monitoring of bladder cancer can come true by using cf-SUPER technology.
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Affiliation(s)
- Cheng Zhao
- Department of Urology, the Third Xiangya Hospital, Central South University, Changsha 410013, China.,Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yi Pan
- Yearth Biotechnology Co. Ltd., Changsha 410008, China
| | - Yinhuai Wang
- Department of Urology, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Yuanwei Li
- Department of Urology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Weiqing Han
- Department of Urology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medical, Central South University, Changsha 410013, China
| | - Li Lu
- Yearth Biotechnology Co. Ltd., Changsha 410008, China
| | - Wei Tang
- Yearth Biotechnology Co. Ltd., Changsha 410008, China
| | - Pei Li
- Yearth Biotechnology Co. Ltd., Changsha 410008, China
| | - Zhenyu Ou
- Department of Urology, the Third Xiangya Hospital, Central South University, Changsha 410013, China.,Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Mengda Zhang
- Department of Urology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zhuang Xiong
- Yearth Biotechnology Co. Ltd., Changsha 410008, China
| | - Ran Xu
- Department of Urology, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Qiang Lu
- Department of Urology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Zhenzhou Xu
- Department of Urology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medical, Central South University, Changsha 410013, China
| | - Lin Qi
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Long Wang
- Department of Urology, the Third Xiangya Hospital, Central South University, Changsha 410013, China.,Department of Urology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Genming Xu
- Yearth Biotechnology Co. Ltd., Changsha 410008, China
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7
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Li L, Qi F, Wang K. Matrine Restrains Cell Growth and Metastasis by Up-Regulating LINC00472 in Bladder Carcinoma. Cancer Manag Res 2020; 12:1241-1251. [PMID: 32110098 PMCID: PMC7035902 DOI: 10.2147/cmar.s224701] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 01/08/2020] [Indexed: 12/19/2022] Open
Abstract
Purpose Bladder Carcinoma (BC) is a malignant carcinoma with a high incidence in masculinity. We preliminarily researched the efficacy and mechanism of matrine (MAT) in T24 and 5637 cells. Patients and Methods CCK-8, flow cytometry, migration and invasion means were adopted to detect cell viability, apoptosis, migratory and invasive potentials. Moreover, LINC00472 expression was changed via transfection assays and was tested by RT-qPCR. Western blot was used for investigating the levels of CyclinD1, p53, Bcl-2, Bax, pro-Caspase-3, Cleaved-Caspase-3, β-actin, programmed cell death protein 4 (PDCD4) and relate-proteins of cell pathways. Tumor volume and weight were tested via animal experiments. Results MAT could not affect the growth of SV-HUC-1 cell but MAT promoted tumor cell apoptosis but restrained viability, invasion and migration. Furthermore, LINC00472 was prominently low expressed in BC tissues. MAT positively regulated LINC00472 and transfection with si-00472 could partly reverse the efficacies of MAT. Moreover, MAT enhanced PDCD4 expression by up-regulating LINC00472. Besides, we discovered MAT elevated PTEN but restrained PI3K/AKT proteins. Finally, tumor volume and weight were declined by MAT in vivo via up-regulating LINC00472. Conclusion MAT restrained cell growth and metastasis but promoted PDCD4 expression by up-regulating LINC00472 via restraining PTEN/PI3K/AKT pathway in BC.
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Affiliation(s)
- Linlin Li
- Department of Operating Room, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin, People's Republic of China
| | - Fei Qi
- Department of Operating Room, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin, People's Republic of China
| | - Kaichen Wang
- Department of Urinary Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin, People's Republic of China
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8
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Tian H, Wang X, Lu J, Tian W, Chen P. MicroRNA-621 inhibits cell proliferation and metastasis in bladder cancer by suppressing Wnt/β-catenin signaling. Chem Biol Interact 2019; 308:244-251. [PMID: 31145890 DOI: 10.1016/j.cbi.2019.05.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/14/2019] [Accepted: 05/27/2019] [Indexed: 12/31/2022]
Abstract
Increasing evidence has shown that dysregulation of microRNA-621 (miR-621) is demonstrated to be associated with several cancers. However, the role of miR-621 in bladder cancer (BCa) remains unclear. Herein, we aimed to study the expression pattern, biological function, and molecular mechanism of miR-621 in BCa. First, we demonstrated that miR-621 was frequently downregulated in BCa tissues and cell lines compared with the adjacent normal BCa tissues and non-cancerous immortalized urothelial cell line. In addition, the expression of miR-621 was negatively correlated with overall survival of BCa patients. Functional experiments suggessted that miR-621 inhibited the proliferation and metastasis of BCa cells. Notably, dual-luciferase assay showed that miR-621 directly targeted the 3' UTR of TRIM29, which was frequently upregulated in BCa tissues and displayed inverse correlation with miR-621 expression. Furthermore, we demonstrated that miR-621 inhibited the proliferation and metastasis of BCa cells via Wnt/β-catenin signaling pathway by targeting TRIM29. Our study suggested that the miR-621/TRIM29 axis inhibits the proliferation and metastasis of BCa cells via Wnt/β-catenin signaling pathway and may have potential applications for development of BCa diagnosis or treatment.
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Affiliation(s)
- Haili Tian
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
| | | | - Jianfeng Lu
- Department of pathology, Tianjin First Center Hospital, Tianjin, 300192, China
| | - Weiping Tian
- Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China.
| | - Peijie Chen
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China.
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9
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Chen L, Long Y, Han Z, Yuan Z, Liu W, Yang F, Li T, Shu L, Zhong Y. MicroRNA-101 inhibits cell migration and invasion in bladder cancer via targeting FZD4. Exp Ther Med 2018; 17:1476-1485. [PMID: 30680031 DOI: 10.3892/etm.2018.7084] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 08/08/2018] [Indexed: 12/26/2022] Open
Abstract
Dysfunction of microRNAs (miRs) has been implicated in the development and progression of various human cancers. Our previous study demonstrated that miR-101 inhibited bladder cancer cell proliferation and invasion through inhibition of c-FOS expression. As an miR generally has many targets, other targets of miR-101 may also serve important roles in bladder cancer progression. Reverse transcription-quantitative polymerase chain reaction and western blot analyses were used to examine mRNA and protein expression, respectively. Wound healing and Transwell assays were conducted to study cell migration and invasion, respectively. The luciferase reporter gene assay was performed to verify one of the targets of miR-101. The data in the present study indicate that the expression of miR-101 is significantly reduced in bladder cancer tissues compared with that in adjacent non-tumour tissues. In addition, miR-101 expression is also downregulated in bladder cancer cell lines compared with that in normal bladder epithelial cells. Furthermore, low expression of miR-101 was significantly associated with tumour metastasis, advanced clinical stage, and poor prognosis in bladder cancer. Frizzled class receptor 4 (FZD4) was identified as a novel target of miR-101 in bladder cancer cells. The expression of FZD4 was significantly upregulated in bladder cancer tissues and cell lines. Both miR-101 overexpression and FZD4 inhibition caused a significant reduction of the migration and invasion of bladder cancer cells, whereas overexpression of FZD4 reversed the suppressive effects of miR-101 on bladder cancer cell migration and invasion. In conclusion, it was demonstrated that miR-101 downregulation is associated with bladder cancer progression and that miR-101 can inhibit bladder cancer cell migration and invasion via directly targeting FZD4. The present study expands the understanding of the molecular mechanisms underlying bladder cancer progression.
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Affiliation(s)
- Lei Chen
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
| | - Yongqi Long
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
| | - Zhijun Han
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
| | - Zhizhou Yuan
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
| | - Wenjin Liu
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
| | - Fan Yang
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
| | - Tao Li
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
| | - Linfei Shu
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
| | - Yunying Zhong
- Department of Urinary Surgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412000, P.R. China
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10
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RAB38 promotes bladder cancer growth by promoting cell proliferation and motility. World J Urol 2018; 37:1889-1897. [PMID: 30535713 DOI: 10.1007/s00345-018-2596-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 12/03/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Bladder cancer is the most common malignancy of urinary system with high morbidity and mortality. In general, the development and progression of bladder cancer are complicated pathological processes, and the treatment methods mainly include surgical resection, radiotherapy, chemotherapy, and combined therapy. In recent years, targeted therapy has made progress in the treatment of bladder cancer. Therefore, to improve survival rates of patients with advanced bladder cancer, novel therapeutic targets are still urgently needed. METHODS AND RESULTS In this study, we found that RAB38 expressed in tumor tissues of patients with bladder cancer was linked to clinical features including pTNM stage and tumor recurrence, and positively correlated with the poor prognosis of bladder cancer. Notably, further results indicated that depletion of RAB38 could significantly inhibit the proliferation and motility of two types of human bladder cancer cells, T24 and 5637 cells. In addition, RAB38 ablation obviously blocked tumor growth and development in mice compared with control. CONCLUSION In conclusion, this study provides significant evidence that RAB38 promotes the development of bladder cancer and provides a novel therapeutic target of bladder cancer.
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11
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Knockdown of long non-coding RNA metastasis associated lung adenocarcinoma transcript 1 inhibits the proliferation and migration of bladder cancer cells by modulating the microRNA-34a/cyclin D1 axis. Int J Mol Med 2018; 43:547-556. [PMID: 30387807 DOI: 10.3892/ijmm.2018.3959] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 10/16/2018] [Indexed: 11/05/2022] Open
Abstract
Long non‑coding RNA (lncRNA) metastasis associated lung adenocarcinoma transcript 1 (MALAT1) has been demonstrated to participate in the development and progression of some common cancer types, including bladder cancer (BC). However, the regulatory mechanism of MALAT1 underlying BC growth and metastasis remains to be fully elucidated. The present study revealed that MALAT1 was significantly upregulated in BC tissues and cell lines compared with the adjacent non‑tumour tissues and the normal urinary tract epithelial cell line SV‑HUC‑1, respectively. The expression levels of MALAT1 were higher in stage III‑IV BC tissues when compared with that in stage I‑II tissues. Furthermore, knockdown of MALAT1 significantly inhibited BC cell proliferation and migration by targeting microRNA (miR)‑34a. The expression levels of miR‑34a were significantly decreased in BC tissues and cell lines compared with that of adjacent non‑tumour tissues and SV‑HUC‑1 cells. In addition, the expression of miR‑34a was inversely correlated with the expression of MALAT1 in BC tissues. The present study revealed that cyclin D1 (CCND1) was identified as a target gene of miR‑34a, and its expression was negatively mediated by miR‑34a in BC cells. Notably, the upregulation of CCND1 impaired the effect of MALAT1 inhibition on BC cell proliferation and migration. In addition, the expression levels of CCND1 were significantly increased in BC tissues and cell lines. In conclusion, the present findings demonstrated that the knockdown of lncRNA MALAT1 inhibits the proliferation and migration of BC cells by modulating the miR‑34a/CCND1 axis, suggesting that the MALAT1/miR‑34a/CCND1 axis may be a potential therapeutic target for BC treatment.
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12
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Zhao Q, Gao S, Du Q, Liu Y. Long non-coding RNA SNHG20 promotes bladder cancer via activating the Wnt/β-catenin signalling pathway. Int J Mol Med 2018; 42:2839-2848. [PMID: 30106094 DOI: 10.3892/ijmm.2018.3819] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 08/06/2018] [Indexed: 11/06/2022] Open
Abstract
The long non‑coding RNA, small nucleolar RNA host gene 20 (SNHG20), is involved in promoting several common types of human cancer, however, the exact function of SNHG20 in the pathogenesis of bladder cancer remains to be elucidated. The present study aimed to examine the regulatory mechanism of SNHG20 underlying the malignant progression of bladder cancer. Reverse transcription‑quantitative polymerase chain reaction and western blotting were used to examine mRNA and protein expression. Cell survival, proliferation, apoptosis, colony formation, migration and invasion were also studied. The resulting data indicated that SNHG20 was significantly upregulated in bladder cancer tissues and cell lines, compared with its expression in adjacent non‑tumour tissues and the SV‑HUC‑1 normal urinary tract epithelial cell line, respectively. In addition, the high expression of SNHG20 was associated with advanced clinical stage, lymph node metastasis, and reduced patient survival rate. The knockdown of SNHG20 caused a significant reduction in cancer cell survival, proliferation, colony formation, migration and invasion, and induced cell apoptosis. Additionally, the inhibition of SNHG20 reduced tumour growth in vivo. Investigations into the mechanism revealed that the inhibition of SNHG20 suppressed the activation of Wnt/β‑catenin signalling and the expression of certain key genes in bladder cancer cells. Taken together, these results indicated that SNHG20 is involved in promoting bladder cancer and may be used as a potential therapeutic target for the treatment of this disease.
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Affiliation(s)
- Qingsong Zhao
- Department of Urology, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
| | - Saiyue Gao
- Physical Examination Laboratory, Lanshan District Center for Disease Control and Prevention, Linyi, Shandong 276000, P.R. China
| | - Qingyan Du
- Physical Examination Laboratory, Lanshan District Center for Disease Control and Prevention, Linyi, Shandong 276000, P.R. China
| | - Ye Liu
- Clinical Laboratory, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
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13
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Zhou W, He L, Dai Y, Zhang Y, Wang J, Liu B. MicroRNA-124 inhibits cell proliferation, invasion and migration by targeting CAV1 in bladder cancer. Exp Ther Med 2018; 16:2811-2820. [PMID: 30214503 PMCID: PMC6125959 DOI: 10.3892/etm.2018.6537] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 03/09/2018] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRs) may have promotive or suppressive roles in various human cancers types, but the molecular mechanisms underlying the role of miR-124 in bladder cancer (BC) progression have remained largely elusive. In the present study, it was observed that miR-124 was significantly downregulated in BC tissues compared with that in adjacent non-neoplastic tissues. Furthermore, its expression was also reduced in several human BC cell lines (T24, HT-1376 and 5637) compared with that in the normal bladder epithelial SV-HUC-1 cell line. A low expression of miR-124 in BC patients was significantly associated with advanced malignancy and a poor prognosis. Caveolin 1 (CAV1) was identified as a novel target gene of miR-124, and the expression of CAV1 was negatively regulated by miR-124 in T24 cells. Furthermore, CAV1 was identified to be significantly upregulated in BC tissues and cell lines, and a negative correlation was observed between the expression of miR-124 and CAV1 in BC tissues. Furthermore, restoration of miR-124 expression significantly inhibited the proliferation, migration and invasion of T24 cells, and these effects were impaired following overexpression of CAV1. Taken together, the present results demonstrate that miR-124 has a suppressive role in the proliferation, migration and invasion of BC cells by targeting CAV1, which suggests that miR-124 is a potential therapeutic candidate for BC.
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Affiliation(s)
- Wandan Zhou
- Department of Operation Center, Urology Group, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Leye He
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Yinbo Dai
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Yichuan Zhang
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jinrong Wang
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Bin Liu
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
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14
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Abstract
Even with advances in perioperative medical care, anesthetic management, and surgical techniques, radical cystectomy (RC) continues to be associated with a high morbidity rate as well as a prolonged length of hospital stay. In recent years, there has been great interest in identifying multimodal and interdisciplinary strategies that help accelerate postoperative convalescence by reducing variation in perioperative care of patients undergoing complex surgeries. Enhanced recovery after surgery (ERAS) attempts to evaluate and incorporate scientific evidence for modifying as many of the factors contributing to the morbidity of RC as possible, and optimize how patients are cared for before and after surgery. In this chapter, we review the preoperative, intraoperative and postoperative elements of using an ERAS protocol for RC.
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Affiliation(s)
- Avinash Chenam
- Department of Surgery, Division of Urology and Urologic Oncology, City of Hope National Medical Center, 1500 E. Duarte Rd, MOB L002H, Duarte, CA, 91010, USA
| | - Kevin G Chan
- Department of Surgery, Division of Urology and Urologic Oncology, City of Hope National Medical Center, 1500 E. Duarte Rd, MOB L002H, Duarte, CA, 91010, USA.
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15
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Hanson BM, Eisenberg ML, Hotaling JM. Male infertility: a biomarker of individual and familial cancer risk. Fertil Steril 2018; 109:6-19. [DOI: 10.1016/j.fertnstert.2017.11.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/15/2017] [Accepted: 11/07/2017] [Indexed: 12/13/2022]
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16
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Ahn KI, Choi EO, Kwon DH, HwangBo H, Kim MY, Kim HJ, Ji SY, Hong SH, Jeong JW, Park C, Kim ND, Kim WJ, Choi YH. Induction of apoptosis by ethanol extract of Citrus unshiu Markovich peel in human bladder cancer T24 cells through ROS-mediated inactivation of the PI3K/Akt pathway. Biosci Trends 2017; 11:565-573. [PMID: 29070760 DOI: 10.5582/bst.2017.01218] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Citrus unshiu peel has been used to prevent and treat various diseases in traditional East-Asian medicine including in Korea. Extracts of C. unshiu peel are known to have various pharmacological effects including antioxidant, anti-inflammatory, and antibacterial properties. Although the possibility of their anti-cancer activity has recently been reported, the exact mechanisms in human cancer cells have not been sufficiently studied. In this study, the inhibitory effect of ethanol extract of C. unshiu peel (EECU) on the growth of human bladder cancer T24 cells was evaluated and the underlying mechanism was investigated. The present study demonstrated that the suppression of T24 cell viability by EECU is associated with apoptosis induction. EECU-induced apoptosis was found to correlate with an activation of caspase-8, -9, and -3 in concomitance with a decrease in the expression of the inhibitor of apoptosis family of proteins and an increase in the Bax:Bcl-2 ratio accompanied by the proteolytic degradation of poly(ADP-ribose) polymerase. EECU also increased the generation of reactive oxygen species (ROS), collapse of mitochondrial membrane potential, and cytochrome c release to the cytosol, along with a truncation of Bid. In addition, EECU inactivated phosphatidylinositol 3-kinase (PI3K) as well as Akt, a downstream molecular target of PI3K, and LY294002, a specific PI3K inhibitor significantly enhanced EECU-induced apoptosis and cell viability reduction. However, N-acetyl cysteine, a general ROS scavenger, completely reversed the EECU-induced dephosphorylation of PI3K and Akt, as well as cell apoptosis. Taken together, these findings suggest that EECU inhibits T24 cell proliferation by activating intrinsic and extrinsic apoptosis pathways through a ROS-mediated inactivation of the PI3K/Akt pathway.
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Affiliation(s)
- Kyu Im Ahn
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University.,Department of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University
| | - Eun Ok Choi
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
| | - Da He Kwon
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
| | - Hyun HwangBo
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
| | - Min Yeong Kim
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
| | - Hong Jae Kim
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
| | - Seon Yeong Ji
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
| | - Su-Hyun Hong
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
| | - Jin-Woo Jeong
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
| | - Cheol Park
- Department of Molecular Biology, College of Natural Sciences, Dongeui University
| | - Nam Deuk Kim
- Department of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University
| | - Wun Jae Kim
- Personalized Tumor Engineering Research Center, Department of Urology, Chungbuk National University College of Medicine
| | - Yung Hyun Choi
- Open Laboratory for Muscular and Skeletal Disease, and Department of Biochemistry, Dongeui University College of Korean Medicine.,Anti-Aging Research Center, Dongeui University
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17
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Sun Y, Guan Z, Zhao W, Jiang Y, Li Q, Cheng Y, Xu Y. Silibinin suppresses bladder cancer cell malignancy and chemoresistance in an NF-κB signal-dependent and signal-independent manner. Int J Oncol 2017; 51:1219-1226. [PMID: 28791405 DOI: 10.3892/ijo.2017.4089] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 07/26/2017] [Indexed: 11/05/2022] Open
Abstract
Because bladder cancer (BCa) is the 9th most common malignant tumor and 13th leading cause of death due to cancer, therapeutic approaches have attracted a great deal of attention from both clinicians and BCa patients. Although the development of surgery and targeted drugs has brought new challenges for the traditional concept of BCa therapy, various types of chemotherapy remain the final treatment method for many BCa patients. However, chemoresistance inevitably appears, leading to the failure of chemotherapy. Silibinin, a polyphenolic flavonoid component isolated from the fruits or seeds of milk thistle, has been reported to play important roles in inhibiting tumor chemoresistance in breast cancer and head and neck squamous cell carcinomas. Our previous study indicated that silibinin inhibited BCa progression in some mechanisms but with no conclusion of chemoresistance inhibition. Therefore, in the present study, we dissected the role of silibinin in BCa progression and chemoresistance. Our results revealed that in BCa, chemodrug-induced chemoresistance was reversed in the presence of silibinin. Further mechanistic study indicated that silibinin suppressed chemoresistance and BCa malignancy in an NF-κB-dependent and -independent manner. In addition, all of the inhibitory effects were dose‑dependent. Thus, our results provide a potential use for silibinin in BCa therapeutics.
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Affiliation(s)
- Yi Sun
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Zhenfeng Guan
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Wencai Zhao
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Yazhuo Jiang
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Qing Li
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Yongyi Cheng
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Yonggang Xu
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
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18
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90-Day complication rate in patients undergoing radical cystectomy with enhanced recovery protocol: a prospective cohort study. World J Urol 2016; 35:907-911. [PMID: 27734131 DOI: 10.1007/s00345-016-1950-z] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 10/04/2016] [Indexed: 12/12/2022] Open
Abstract
PURPOSE To report 90-day complication rates following radical cystectomy (RC) with enhanced recovery after surgery (ERAS) protocol. METHODS All consecutive patients who underwent open RC with ERAS protocol from 2012 to 2014 were included. The protocol includes no bowel preparation or NGT, early feeding, predominantly non-narcotic pain management and μ-opioid antagonists. Non-consenting and lost to follow-up patients were excluded. All patients were closely followed up, and 90-day complication (Clavien-Dindo grading), readmission and emergency room (ER) visits were prospectively recorded. RESULTS One hundred and sixty-nine cases with a median age of 71 years were included in the study. 90-Day major and minor complication rates were 24.3 and 53.9 %, respectively. The most common complications were infectious and gastrointestinal. The 90-day ER visit rate was 37.9 %, whereas the readmission rate was 29.6 %. The most common cause of hospital readmission and ER visits was infections. CONCLUSION Radical cystectomy and urinary diversion with enhanced recovery protocol is a morbid surgery. The most common complication, cause of ER visit and readmission is yet infections. Further studies on methods to decrease these rates are underway.
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19
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Bennett N, Incrocci L, Baldwin D, Hackett G, El-Zawahry A, Graziottin A, Lukasiewicz M, McVary K, Sato Y, Krychman M. Cancer, Benign Gynecology, and Sexual Function—Issues and Answers. J Sex Med 2016; 13:519-37. [DOI: 10.1016/j.jsxm.2016.01.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 01/10/2016] [Accepted: 01/12/2016] [Indexed: 12/20/2022]
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20
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Sun Y, Guan Z, Liang L, Cheng Y, Zhou J, Li J, Xu Y. HIF-1α/MDR1 pathway confers chemoresistance to cisplatin in bladder cancer. Oncol Rep 2015; 35:1549-56. [PMID: 26717965 DOI: 10.3892/or.2015.4536] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 12/21/2015] [Indexed: 11/05/2022] Open
Abstract
Bladder cancer (BCa) is the 9th most common malignant tumor and the 13th leading cause of death due to cancer. The development of surgery and target drugs bring new challenges for the traditional concept for BCa therapy, and chemotherapy is still the final option for many BCa patients, and cisplatin-containing regimen the most effective one. However, the ubiquitous application of cisplatin-containing regimen in BCa results in the cisplatin-resistance, in addition, the cisplatin‑resistant BCa manifests enhanced malignant behavior, the mechanism of which is unclear. In the present study, we used BCa cell lines to to clarify this point. BCa cell lines T24/J82 were pretreated with cisplatin >3 months to construct stable cisplatin-resistant cell lines (tagged T24(Cis-R) and J82(Cis-R)), which manifested as enhanced capacity of proliferation and malignant behavior in vivo and in vitro, accompanied by cisplatin, and even doxorubicin resistance. The following mechanism dissection revealed that prolonged treatment time of T24/J82 cells led to elevated expression of HIF-1α, which targeted the increased expression of MDR1 on the one hand, and contributed to BCa cell proliferation, migration/invasion on the other hand. Finally, IHC staining of human BCa tissue supported our conclusion that the expression of HIF-1α and MDR1 was higher in chemoresistant tissue vs. chemosensitive tissue. Our results provided a new view of HIF-1α in chemotherapy.
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Affiliation(s)
- Yi Sun
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Zhenfeng Guan
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Liang Liang
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Yongyi Cheng
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Jiancheng Zhou
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Jing Li
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Yonggang Xu
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
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21
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ZHAO CHENG, QI LIN, CHEN MINFENG, LIU LONGFEI, YAN WEIQIAN, TONG SHIYU, ZU XIONGBING. microRNA-195 inhibits cell proliferation in bladder cancer via inhibition of cell division control protein 42 homolog/signal transducer and activator of transcription-3 signaling. Exp Ther Med 2015; 10:1103-1108. [PMID: 26622447 PMCID: PMC4533204 DOI: 10.3892/etm.2015.2633] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 02/04/2015] [Indexed: 11/05/2022] Open
Abstract
microRNA (miR)-195 acts as a suppressor in multiple types of malignant tumors, including bladder cancer; however, the detailed function of miR-195 in bladder cancer remains largely unknown. The aim of the present study was to investigate the role of miR-195 in the regulation of bladder cancer cell proliferation and to determine whether cell division control protein 42 homolog (Cdc42)/signal transducer and activator of transcription-3 (STAT3) signaling acts as a downstream effector of miR-195 in bladder cancer cells. Reverse transcription-quantitative polymerase chain reaction was used to determine the expression levels of miR-195 in bladder cancer tissues and normal adjacent tissue. The results revealed that the expression of miR-195 was significantly downregulated in bladder cancer tissues compared with that in the normal adjacent tissues. A luciferase reporter assay was then conducted, which identified Cdc42 as a direct target of miR-195, and the expression of Cdc42 was significantly upregulated in bladder cancer tissues, as determined by western blotting. Furthermore, miR-195 negatively regulated the protein expression of Cdc42 in bladder cancer cells. An MTT assay was also conducted to determine the rate of cell proliferation. Upregulation of miR-195 or the inhibition of Cdc42 could inhibit bladder cancer cell proliferation, possibly through activation of STAT3 signaling. In addition, restoration of Cdc42 could reverse the inhibitory effect of miR-195 upregulation on bladder cancer cell proliferation. In conclusion, the results of the present study suggest that miR-195 plays an inhibitory role in the regulation of bladder cancer cell proliferation by directly targeting Cdc42/STAT3 signaling.
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Affiliation(s)
- CHENG ZHAO
- Department of Urology, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China
| | - LIN QI
- Department of Urology, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China
| | - MINFENG CHEN
- Department of Urology, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China
| | - LONGFEI LIU
- Department of Urology, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China
| | - WEIQIAN YAN
- Department of Neurology, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China
| | - SHIYU TONG
- Department of Urology, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China
| | - XIONGBING ZU
- Department of Urology, Xiangya Hospital of Central South University, Changsha, Hunan 410008, P.R. China
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22
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Lin R, Shen W, Zhi Y, Zhou Z. Prognostic value of miR-26a and HMGA1 in urothelial bladder cancer. Biomed Pharmacother 2014; 68:929-34. [PMID: 25455159 DOI: 10.1016/j.biopha.2014.10.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 10/01/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND MicroRNA-26a (miR-26a) functions as a tumor suppressor by regulating its direct target gene high mobility group AT-hook 1 (HMGA1). This study was aimed to investigate the associations of differential expression of miR-26a and HMGA1 with tumor progression and prognosis in urothelial bladder cancer (UBC) patients. MATERIALS AND METHODS One hundred and twenty-six UBC patients were selected and quantitative real-time PCR was performed to detect the expression of miR-26a and HMGA1 mRNA in the respective tumors. RESULTS Our data showed the decreased expression of miR-26a and the increased expression of HMGA1 mRNA in UBC tissues compared with corresponding non-cancerous tissues (both P<0.001). Then, the expression levels of miR-26a in UBC tissues were negatively correlated with those of HMGA1 mRNA significantly (r=-0.72, P<0.001). In addition, UBC patients with combined miR-26a downregulation and HMGA1 upregulation (miR-26a-low/HMGA1-high) more frequently had advanced pathological stage (P<0.001) and high tumor grade (P<0.001). Moreover, miR-26a-low/HMGA1-high expression was associated with a significantly shortest disease-free survival (P<0.001) and overall survival (P<0.001) of all miR-26a/HMGA1 combined expression groups. Furthermore, multivariate analysis indicated that miR-26a/HMGA1 expression was an independent prognostic factor for both disease-free survival and overall survival (both P=0.001) in UBC patients. CONCLUSION Interaction between miR-26a and its target gene HMGA1 may contribute to the malignant progression of human UBC. Tumors with miR-26a downregulation in combination with high expression of HMGA1 showed a worse prognosis than the other tumors. Combined detection of their expression might be particularly helpful for surveillance of disease progression and treatment stratification.
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Affiliation(s)
- Rongkai Lin
- Urological Research Institute of PLA, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Wenhao Shen
- Urological Research Institute of PLA, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Yi Zhi
- Urological Research Institute of PLA, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Zhansong Zhou
- Urological Research Institute of PLA, Southwest Hospital, Third Military Medical University, Chongqing 400038, China.
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