1
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Xinyi X, Gong Y. The role of ATP-binding cassette subfamily G member 1 in tumor progression. Cancer Med 2024; 13:e7285. [PMID: 38896016 PMCID: PMC11187935 DOI: 10.1002/cam4.7285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 04/13/2024] [Accepted: 04/30/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND ATP-binding cassette subfamily G member 1 is mostly known as a transporter for intracellular cholesterol efflux, and a number of studies indicate that ABCG1 also functions actively in tumor initiation and progression. This review aimed to provide an overall review of how ABCG1 acts in tumor progression. METHOD A comprehensive searching about ABCG1 and tumor was conducted up to November 2023 using proper keywords through databases including PubMed and Web of Science. RESULT Overall, ABCG1 plays a crucial role in the development of multiple tumorigenesis. ABCG1 enhances tumor-promoting ability through conferring stem-like properties to cancer cells and mediates chemoresistance in multiple cancers. Additionally, ABCG1 may act as a kinase to phosphorylate downstream molecules and induces tumor growth. In tumor microenvironment, ABCG1 plays a substantial role in immunity response through macrophages to create a tumor-favoring circumstance. CONCLUSION High expression of ABCG1 is usually associated with poor prognosis, which means ABCG1 may be a potential biomarker for early diagnosis and prognosis of various cancers. ABCG1-targeted therapy may provide a novel treatment for cancer patients.
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Affiliation(s)
- Xu Xinyi
- Central Laboratory, The Fifth People's Hospital of ShanghaiFudan UniversityShanghaiChina
| | - Yang Gong
- Central Laboratory, The Fifth People's Hospital of ShanghaiFudan UniversityShanghaiChina
- Cancer InstituteFudan University Shanghai Cancer CenterShanghaiChina
- Department of OncologyFudan University Shanghai Medical SchoolShanghaiChina
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2
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Li Y, Kong Y, An M, Luo Y, Zheng H, Lin Y, Chen J, Yang J, Liu L, Luo B, Huang J, Lin T, Chen C. ZEB1-mediated biogenesis of circNIPBL sustains the metastasis of bladder cancer via Wnt/β-catenin pathway. J Exp Clin Cancer Res 2023; 42:191. [PMID: 37528489 PMCID: PMC10394821 DOI: 10.1186/s13046-023-02757-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/10/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) circularized by back-splicing of pre-mRNA are widely expressed and affected the proliferation, invasion and metastasis of bladder cancer (BCa). However, the mechanism underlying circRNA biogenesis in mediating the distant metastasis of BCa still unexplored. METHODS RNA sequencing data between BCa and normal adjacent tissues was applied to identify the differentially expressed circRNAs. The functions of circNIPBL in BCa were investigated via a series of biochemical experiments. The Clinical significance of circNIPBL was examined in a cohort of larger BCa tissues. RESULTS In the present study, we identified a novel circRNA (hsa_circ_0001472), circNIPBL, which was significantly upregulated and had great influence on the poor prognosis of patients with BCa. Functionally, circNIPBL promotes BCa metastasis in vitro and in vivo. Mechanistically, circNIPBL upregulate the expression of Wnt5a and activated the Wnt/β-catenin signaling pathway via directly sponged miR-16-2-3p, leading to the upregulation of ZEB1, which triggers the EMT of BCa. Moreover, we revealed that ZEB1 interacted with the flanking introns of exons 2-9 on NIPBL pre-mRNA to trigger circNIPBL biogenesis, thus forming a positive feedback loop. Importantly, circNIPBL overexpression significantly facilitated the distant metastasis of BCa in the orthotopic bladder cancer model, while silencing ZEB1 remarkably blocked the effects of metastasis induced by circNIPBL overexpression. CONCLUSIONS Our study highlights that circNIPBL-induced Wnt signaling pathway activation triggers ZEB1-mediated circNIPBL biogenesis, which forms a positive feedback loop via the circNIPBL/miR-16-2-3p/Wnt5a/ZEB1 axis, supporting circNIPBL as a novel therapeutic target and potential biomarker for BCa patients.
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Affiliation(s)
- Yuanlong Li
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China
| | - Yao Kong
- Department of Pancreatic Surgery, Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - Mingjie An
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China
| | - Yuming Luo
- Department of Pancreatic Surgery, Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, P. R. China
| | - Hanhao Zheng
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China
| | - Yan Lin
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China
| | - Jiancheng Chen
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China
| | - Jin Yang
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan, P. R. China
| | - Libo Liu
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China
| | - Baoming Luo
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China
| | - Jian Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China.
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China.
| | - Tianxin Lin
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China.
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China.
| | - Changhao Chen
- Department of Urology, Sun Yat-sen Memorial Hospital, 107 Yanjiangxi Road, Yuexiu District, Guangzhou, 510120, Guangdong, P. R. China.
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, State Key Laboratory of Oncology in South China, Sun Yat-sen Memorial Hospital, Guangzhou, Guangdong, P. R. China.
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3
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Chen W, Xu J, Wu Y, Liang B, Yan M, Sun C, Wang D, Hu X, Liu L, Hu W, Shao Y, Xing D. The potential role and mechanism of circRNA/miRNA axis in cholesterol synthesis. Int J Biol Sci 2023; 19:2879-2896. [PMID: 37324939 PMCID: PMC10266072 DOI: 10.7150/ijbs.84994] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/16/2023] [Indexed: 06/17/2023] Open
Abstract
Cholesterol levels are an initiating risk factor for atherosclerosis. Many genes play a central role in cholesterol synthesis, including HMGCR, SQLE, HMGCS1, FDFT1, LSS, MVK, PMK, MVD, FDPS, CYP51, TM7SF2, LBR, MSMO1, NSDHL, HSD17B7, DHCR24, EBP, SC5D, DHCR7, IDI1/2. Especially, HMGCR, SQLE, FDFT1, LSS, FDPS, CYP51, and EBP are promising therapeutic targets for drug development due to many drugs have been approved and entered into clinical research by targeting these genes. However, new targets and drugs still need to be discovered. Interestingly, many small nucleic acid drugs and vaccines were approved for the market, including Inclisiran, Patisiran, Inotersen, Givosiran, Lumasiran, Nusinersen, Volanesorsen, Eteplirsen, Golodirsen, Viltolarsen, Casimersen, Elasomeran, Tozinameran. However, these agents are all linear RNA agents. Circular RNAs (circRNAs) may have longer half-lives, higher stability, lower immunogenicity, lower production costs, and higher delivery efficiency than these agents due to their covalently closed structures. CircRNA agents are developed by several companies, including Orna Therapeutics, Laronde, and CirCode, Therorna. Many studies have shown that circRNAs regulate cholesterol synthesis by regulating HMGCR, SQLE, HMGCS1, ACS, YWHAG, PTEN, DHCR24, SREBP-2, and PMK expression. MiRNAs are essential for circRNA-mediated cholesterol biosynthesis. Notable, the phase II trial for inhibiting miR-122 with nucleic acid drugs has been completed. Suppressing HMGCR, SQLE, and miR-122 with circRNA_ABCA1, circ-PRKCH, circEZH2, circRNA-SCAP, and circFOXO3 are the promising therapeutic target for drug development, specifically the circFOXO3. This review focuses on the role and mechanism of the circRNA/miRNA axis in cholesterol synthesis in the hope of providing knowledge to identify new targets.
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Affiliation(s)
- Wujun Chen
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
| | - Jiazhen Xu
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
| | - Yudong Wu
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
| | - Bing Liang
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
| | - Mingzhe Yan
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
| | - Chuandong Sun
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
- Department of Liver Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China
| | - Dong Wang
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
- Department of Liver Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China
| | - Xiaokun Hu
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
- Interventional Medicine Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, 266000, China
| | - Li Liu
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
- Department of Community Health Promotion, Qingdao Municipal Center for Disease Control & Prevention, Qingdao Institute of Preventive Medicine, Qingdao, Shandong, 266033, China
| | - Wenchao Hu
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
- Department of Endocrinology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, 266000, China
| | - Yingchun Shao
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
| | - Dongming Xing
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong, 266000, China
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
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4
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Meng H, Jiang L, Jia P, Niu R, Bu F, Zhu Y, Pan X, Li J, Liu J, Zhang Y, Huang C, Lv X, Li J. Inhibition of circular RNA ASPH reduces the proliferation and promotes the apoptosis of hepatic stellate cells in hepatic fibrosis. Biochem Pharmacol 2023; 210:115451. [PMID: 36758707 DOI: 10.1016/j.bcp.2023.115451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023]
Abstract
Circular RNAs (circRNAs) are a newly identified form of non-coding RNA that play a crucial role in various pathological processes. However, the expression profile and function of circRNAs in hepatic fibrosis (HF) remain largely unknown. In this study, we showed that a novel circRNA ASPH (circASPH) mediates HF by targeting the miR-139-5p/Notch1 axis. We investigated the expression profile of circRNAs in hepatocyte exosomes of mice with HF using circRNA-sequencing and found significant upregulation of circASPH. Loss- and gain-of-function analysis of circASPH was performed to assess its role in HF. Furthermore, we performed luciferase reporter assay, RNA pull-down, and fluorescence in situ hybridization analyses and confirmed that circASPH directly binds to miR-139-5p. We also found that circASPH was upregulated in liver fibrogenesis. Downregulation of circASPH expression inhibited hepatic stellate cell (HSC) activation and proliferation, induced apoptosis, and attenuated mouse liver fibrogenic injury. Mechanistically, circASPH directly targeted miR-139-5p to regulate the expression of Notch1 in HF. Thus, downregulation of circASPH may suppress the activation of HSCs and HF through the circASPH/miR-139-5p/Notch1 axis. Our findings indicated that circASPH may be a potential biomarker for HF diagnosis and therapy.
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Affiliation(s)
- Hongwu Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Lingfeng Jiang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Pengcheng Jia
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ruowen Niu
- The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Fangtian Bu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yan Zhu
- The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Xueyin Pan
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Juanjuan Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jinyu Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yilong Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Cheng Huang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
| | - Xiongwen Lv
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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5
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Ding L, Lin Y, Chen X, Wang R, Lu H, Wang H, Luo W, Lu Z, Xia L, Zhou X, Li G, Cheng S. circPHF16 suppresses prostate cancer metastasis via modulating miR-581/RNF128/Wnt/β-catenin pathway. Cell Signal 2023; 102:110557. [PMID: 36503162 DOI: 10.1016/j.cellsig.2022.110557] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
Circular RNAs (circRNAs) have been recognized as important regulators in tumorigenesis. However, the specific role of circRNAs in prostate cancer is still largely unknown. Here, we identified that circPHF16 was downregulated in prostate cancer (PCa) tissues compared with normal tissues. Functionally, circPHF16 restrained prostate cancer metastasis both in vivo and in vitro. Mechanistically, circPHF16 directly interacted with miR-581, leading to the downregulation of ring finger protein 128 (RNF128) and inhibiting the metastatic ability of PCa. Furthermore, circPHF16-dependent upregulation of RNF128 inactivated Wnt/β-catenin signaling. In total, our findings revealed that circPHF16 suppressed prostate cancer metastasis through the circPHF16/miR-581/Wnt/β-catenin pathways.
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Affiliation(s)
- Lifeng Ding
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Yudong Lin
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Xianjiong Chen
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Ruyue Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Haohua Lu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Huan Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Wenqin Luo
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Zeyi Lu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Liqun Xia
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Xiaobo Zhou
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Gonghui Li
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China.
| | - Sheng Cheng
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China.
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Lin Y, Wang F, Zhong Y, Cheng NM, Xiong J, Zheng X, Zhou Y, Gao S, Li F, Wang Y, Yang X, Zhao B. Long non-coding RNA COX7C-5 promotes hepatocellular carcinoma progression via miR-581/ZEB2 axis. Cell Signal 2023; 101:110501. [PMID: 36273755 DOI: 10.1016/j.cellsig.2022.110501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
Abstract
Long non-coding RNAs (lncRNA) play crucial roles in hepatocellular carcinoma (HCC) progression. However, the functional roles of lncRNAs in HCC still remain largely unknown. Our study aimed to investigate the biological function and potential molecular mechanism of lnc-COX7C-5 in HCC. Here, we show that Lnc-COX7C-5 was significantly upregulated in HCC tissues, which was correlated with poor prognosis in HCC patients. Lnc-COX7C-5 positively regulated proliferation, migration, and invasion of HCC cells. Mechanistically, lnc-COX7C-5 function as a competing endogenous RNA (ceRNA) for miR-581 in HCC cells. Over-expression or knockdown of miR-581 could alter cell phenotypes caused by Lnc-COX7C-5 in HCC. Further investigations indicated that ZEB2 was demonstrated as a downstream target of miR-581. In mouse model, over-expression of Lnc-COX7C-5 facilitate lung metastasis of HCC. Collectively, Lnc-COX7C-5 promote HCC tumorigenesis and progression by targeting the miR-581/ZEB2 axis. Lnc-COX7C-5 may be a potential therapeutic target for HCC.
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Affiliation(s)
- Yantin Lin
- Fuzhou Hospital of Traditional Chinese Medicine Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350001, China; School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Fei Wang
- The United Innovation of Meng chao Hepatobiliary Technology Key Laboratory of Fujian Province, Meng chao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, PR China
| | - Yue Zhong
- The United Innovation of Meng chao Hepatobiliary Technology Key Laboratory of Fujian Province, Meng chao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, PR China
| | - Niang Mei Cheng
- The United Innovation of Meng chao Hepatobiliary Technology Key Laboratory of Fujian Province, Meng chao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, PR China
| | - Jiahui Xiong
- Fuzhou Hospital of Traditional Chinese Medicine Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350001, China
| | - Xiaoyuan Zheng
- The United Innovation of Meng chao Hepatobiliary Technology Key Laboratory of Fujian Province, Meng chao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, PR China
| | - Yang Zhou
- The United Innovation of Meng chao Hepatobiliary Technology Key Laboratory of Fujian Province, Meng chao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, PR China
| | - Shaodong Gao
- Fuzhou Hospital of Traditional Chinese Medicine Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350001, China; School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Fang Li
- Fuzhou Hospital of Traditional Chinese Medicine Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350001, China; School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Yingchao Wang
- The United Innovation of Meng chao Hepatobiliary Technology Key Laboratory of Fujian Province, Meng chao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, PR China
| | - Xiaoyu Yang
- Fuzhou Hospital of Traditional Chinese Medicine Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350001, China; School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China.
| | - Bixing Zhao
- The United Innovation of Meng chao Hepatobiliary Technology Key Laboratory of Fujian Province, Meng chao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, PR China.
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7
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Xiong W, Zhang A, Xiao X, Liu W. CircSETD3 (hsa_circ_0000567) inhibits proliferation and induces apoptosis in cholangiocarcinoma cells via downregulation of microRNA-421 expression. Bioengineered 2022; 13:10191-10201. [PMID: 35435120 PMCID: PMC9161902 DOI: 10.1080/21655979.2022.2061283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cholangiocarcinoma (CCA) is a fatal tumor associated with chronic inflammation. Circular RNAs (circRNAs) have been evidenced to be involved in tumorigenesis and tumor progression. This study aimed to explore the effects and potential molecular mechanism of circSETD3 in CCA progression. Levels of CircSETD3 and microRNA (miR)-421 in CCA tissue and cell lines were measured using quantitative real-time polymerase-chain reaction (qRT-PCR). A direct target of miR-421 was predicted using TargetScan and further confirmed by a dual-luciferase reporter assay. Cell proliferation and apoptosis were measured using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and flow cytometry, respectively. The activity of caspase-3 was also examined using caspase-3 activity detection kits. Moreover, the levels of B-cell lymphoma-2 modifying factor (BMF), B-cell lymphoma 2 (BCL2), and Bcl-2-associated X protein (BAX) in TFK1 cells were assessed using qRT-PCR and western blot analysis. We found that circSETD3 was downregulated, while miR-421 was upregulated in CCA tissues and cell lines. CircSETD3 negatively regulated miR-421 levels in TFK1 cells. Functional assays revealed that circSETD3-plasmid inhibited cell proliferation, induced apoptosis, promoted caspase-3 activity, enhanced Bax and cleaved-Caspase 3 expression, and reduced Bcl-2 levels, and these effects were reversed by miR-421 mimic. Meanwhile, similar results were observed in miR-421 inhibitor-transfected TFK1 cells, and these results were abolished by BMF-siRNA. BMF, a direct target of miR-421, was downregulated in CCA tissues and cell lines. These findings demonstrate that circSETD3 inhibits proliferation and induces apoptosis in CCA cells by regulating the miR-421/BMF axis, indicating its potential as a promising candidate for CCA therapy.
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Affiliation(s)
- Wei Xiong
- Digestive Endoscopy Center, Mengchao Hepatobiliary Hospitai of Fujian Medical University, Fuzhou, Fujian, China
| | - Aiqing Zhang
- Department of Gastroenterology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Xiaodian. District China
| | - Xiuli Xiao
- Digestive Endoscopy Center, Mengchao Hepatobiliary Hospitai of Fujian Medical University, Fuzhou, Fujian, China
| | - Wenjuan Liu
- Department of Gastroenterology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Xiaodian. District China
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8
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Tang J, Wang R, Tang R, Gu P, Han J, Huang W. CircRTN4IP1 regulates the malignant progression of intrahepatic cholangiocarcinoma by sponging miR-541-5p to induce HIF1A production. Pathol Res Pract 2022; 230:153732. [PMID: 34974242 DOI: 10.1016/j.prp.2021.153732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 12/01/2021] [Accepted: 12/03/2021] [Indexed: 01/15/2023]
Abstract
BACKGROUND Recent studies indicate that circular RNA (circRNA) serves important roles in the development of intrahepatic cholangiocarcinoma (ICC). However, the role of circRNA reticulon 4 interacting protein 1 (circRTN4IP1) in ICC progression remains unknown. METHODS Expression of circRTN4IP1, microRNA-541-5p (miR-541-5p), hypoxia inducible factor 1 subunit alpha (HIF1A) and other indicated protein markers was detected by quantitative real-time polymerase chain reaction or Western blot. The functional effects of circRTN4IP1 knockdown in ICC cells were analyzed by cell counting kit-8, cell colony formation, flow cytometry analysis, Western blot, glucose and lactate kit assays. The positive expression rate of HIF1A was detected by immunohistochemistry assay. The interaction between miR-541-5p and circRTN4IP1 or HIF1A was identified by dual-luciferase reporter, RNA immunoprecipitation or RNA pull-down assays. Xenograft mouse model assay was performed to determine the effect of circRTN4IP1 depletion on tumor formation. RESULTS In contrast, ICC tissues and cells showed high expression of circRTN4IP1 and HIF1A, but low expression of miR-541-5p. Knockdown of circRTN4IP1 led to repression of cell proliferation and glucose metabolism, but promotion of cell apoptosis; however, circRTN4IP1 overexpression had opposite effects. In mechanism, circRTN4IP1 acted as a sponge for miR-541-5p, which was found to target HIF1A. MiR-541-5p inhibitors could remit circRTN4IP1 knockdown-mediated action. Also, HIF1A participated in the regulation of miR-541-5p in ICC progression. In support, circRTN4IP1 depletion impeded tumor formation in vivo. CONCLUSION CircRTN4IP1 knockdown inhibited ICC cell malignancy by miR-541-5p/HIF1A axis, providing us with a reliable target for the therapy of ICC.
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Affiliation(s)
- Jintian Tang
- Department of Hepatopancreatobiliary, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Ruibin Wang
- Department of Hepatopancreatobiliary, The Third Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Runjuan Tang
- Department of Rehabilitation, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Peng Gu
- Department of Interventional, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Jing Han
- Office of drug clinical trial institutions, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Wukui Huang
- Department of Interventional, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China.
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Zhang W, Xu C, Guo J, Guo L, Huo H, Wang H. Circ-ELF2 Acts as a Competing Endogenous RNA to Facilitate Glioma Cell Proliferation and Aggressiveness by Targeting MiR-510-5p/MUC15 Signaling. Onco Targets Ther 2020; 13:10087-10096. [PMID: 33116591 PMCID: PMC7553768 DOI: 10.2147/ott.s275218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 09/17/2020] [Indexed: 12/20/2022] Open
Abstract
Objective Glioma (GM) is a common type of malignant and aggressive tumor in brain with poor prognosis. Circular RNAs (circRNAs) are well-known regulators in cancer progression. However, its molecular basis in GM remains to be investigated. Materials and Methods CircRNA microarray was used to detect differentially expressed circRNAs in GM and matched noncancerous tissues. qRT-PCR was applied to detect the expression profile of circ-ELF2 in GM tissue specimens and cell lines. CCK-8, clone formation, AO/EB staining, flow cytometry, wound healing, and transwell assays were performed to identify the functions of circ-ELF2 in GM cells. The distribution of circ-ELF2 was analyzed by RNA-FISH and subcellular fractionation assay. Dual-luciferase reporter assay was applied to verify the predicted binding sites between miR-510-5p and circ-ELF2/MUC15 3ʹ-UTR. Rescue assay was finally conducted to explore whether the oncogenic role of circ-ELF2 was partially attributed to miR-510-5p/MUC15 signaling. Results We observed that circ-ELF2 was significantly upregulated in GM tissues, which was analyzed by circRNA microarray and qRT-PCR. Upregulation of circ-ELF2 was associated with poor prognosis and high recurrence rate for GM patients after surgery. The collapse of circ-ELF2 caused growth arrest and downregulation of cell migratory and invasive potential of GM cells and promoted cell apoptosis. In contrast, elevated expression of circ-ELF2 led to the opposite effect. Mechanistically, circ-ELF2 acted as a competing endogenous RNA (ceRNA) for miR-510-5p to positive modulate MUC15 expression at posttranscriptional level. Circ-ELF2 upregulated MUC15 by sponging miR-510-5p, thus promoting GM growth and aggressiveness. Conclusion This study indicates that circ-ELF2/miR-510-5p/MUC15 signaling plays a key role in promoting the occurrence and development of GM.
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Affiliation(s)
- Weixin Zhang
- Department of Nursing, Qiqihar Medical University, Qiqihar, 161000, China
| | - ChunMiao Xu
- Department of Nursing of Medicine and Surgery, Qiqihar Medical University, Qiqihar, 161000, China
| | - Jianyu Guo
- Department of Orthopedics Surgery, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China
| | - Limei Guo
- Department of Nursing of Medicine and Surgery, Qiqihar Medical University, Qiqihar, 161000, China
| | - Hongliang Huo
- Department of Nursing, The Second Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China
| | - Huan Wang
- Department of Community Nursing, Qingdao Health School of Shandong Province, Qingdao, 266000, China
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