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Nie L, Jiang T. CircNUP98 promotes the malignant behavior of glioma cells through the miR-520f-3p/ELK4 axis. Int J Dev Neurosci 2024. [PMID: 38923578 DOI: 10.1002/jdn.10355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/31/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
Glioma, a formidable form of brain cancer, poses significant challenges in terms of treatment and prognosis. Circular RNA nucleoporin 98 (circNUP98) has emerged as a potential regulator in various cancers, yet its role in glioma remains unclear. Here, we elucidate the functional role of circNUP98 in glioma cell proliferation, invasion, and migration, shedding light on its therapeutic implications. Glioma cells were subjected to si-NUP98 transfection, followed by assessments of cell viability, proliferation, invasion, and migration. Subcellular localization of circNUP98 was determined, and its downstream targets were identified. We delineated the binding relationships between circNUP98 and microRNA (miR)-520f-3p, as well as between miR-520f-3p and ETS transcription factor ELK4 (ELK4). The expression levels of circNUP98/miR-520f-3p/ELK4 were quantified. Our findings demonstrated that circNUP98 was upregulated in glioma cells, and its inhibition significantly attenuated glioma cell proliferation, invasion, and migration. Mechanistically, circNUP98 functioned as a sponge for miR-520f-3p, thereby relieving the inhibitory effect of miR-520f-3p on ELK4. Moreover, inhibition of miR-520f-3p or overexpression of ELK4 partially rescued the suppressive effect of circNUP98 knockdown on glioma cell behaviors. In summary, our study unveils that circNUP98 promotes glioma cell progression via the miR-520f-3p/ELK4 axis, offering novel insights into the therapeutic targeting of circNUP98 in glioma treatment.
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Affiliation(s)
- Liangqin Nie
- Department of Radiotherapy and Chemotherapy, Ningbo No.2 Hospital, Ningbo City, China
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2
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Chen H, Cheng Z, Wang M, Huang Q, Zheng D, Huang Q, Cai K. Circ_0020887 Silencing Combats Hypoxic-Induced Cardiomyocyte Injury in an MiR-370-3p/CYP1B1-Dependent Manner. Int Heart J 2024; 65:308-317. [PMID: 38479850 DOI: 10.1536/ihj.23-325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Targeting circular RNA has been a novel approach to preventing and limiting acute myocardial infarction (AMI). Here, we planned to investigate the role and mechanism of circ_0020887 in AMI progression.Hypoxic injury in human cardiomyocytes (AC16) was measured using cell counting kit-8 assay, 5-ethynyl-2'-deoxyuridine assay, flow cytometry, and colorimetric assay kits. RNA and protein expressions were determined using real-time quantitative PCR and western blotting. Direct interplay between RNAs was determined using dual-luciferase reporter, RNA pull-down, and RIP assays.In the plasma and hypoxia-induced AC16 cells of patients with AMI, circ_0020887 and miR-370-3p were upregulated and downregulated, respectively, concomitant with the upregulation of cytochrome P450 1B1 (CYP1B1). Circ_0020887 interference could inhibit hypoxia-induced AC16 cell apoptosis, oxidative stress, and inflammatory response. Circ_0020887 could sponge miR-370-3p, and miR-370-3p could target CYP1B1. The inhibition effect of circ_0020887 knockdown on hypoxia-induced AC16 cell injury could be reversed by the miR-370-3p inhibitor. Besides, CYP1B1 overexpression also overturned the suppressive effect of miR-370-3p on hypoxia-induced AC16 cell apoptosis, oxidative stress, and inflammatory response.In conclusion, circ_0020887 regulated the miR-370-3p/CYP1B1 axis to regulate hypoxia-induced cardiomyocyte injury, confirming that circ_0020887 might promote cardiomyocyte injury.
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Affiliation(s)
- Huiqin Chen
- Department of Basic Medical, Quanzhou Medical College
| | - Zhendong Cheng
- Department of Cardiovascular, The Second Affiliated Hospital of Fujian Medical University
| | - Meiai Wang
- Department of Basic Medical, Quanzhou Medical College
| | - Qian Huang
- Department of Basic Medical, Quanzhou Medical College
| | - Dandan Zheng
- Department of Basic Medical, Quanzhou Medical College
| | - Qiuhong Huang
- Department of Basic Medical, Quanzhou Medical College
| | - Kefeng Cai
- Department of Cardiovascular, The Second Affiliated Hospital of Fujian Medical University
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3
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Zhang B, Xu B, Yu L, Pei Y, He Y. The Diagnostic and Prognostic Value of Plasma Circulating CircNUP98 for Nasopharyngeal Carcinoma. Curr Mol Med 2024; 24:226-232. [PMID: 36330641 DOI: 10.2174/1566524023666221103152824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/08/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Our preliminary sequencing analysis revealed increased expression levels of circNUP98 in nasopharyngeal carcinoma (NPC). This study was therefore carried out to explore the role of circNUP98 in NPC. METHODS The present study enrolled 56 patients with NPC, 44 patients with cervical lymphadenitis (CL), 50 patients with nose bleeding (NB), 50 patients with chronic sinusitis (CS), 50 patients with lymph node tuberculosis (LNT), and 50 healthy controls (Control). Plasma samples were obtained from all patients and the controls. In addition, NPC and paired non-tumor tissue samples were collected from the 56 NPC patients. The expression of circNUP98 in both tissue and plasma samples was determined by RT-qPCR. The 56 NPC patients were followed up for 5 years to analyze the associations between plasma expression of circNUP98 and the survival of patients. The diagnostic value of circNUP98 for NPC was analyzed through ROC curve analysis. RESULTS The plasma expression levels of circNUP98 were only increased in NPC, but not in CL, NB, CS and LNT groups compared to that in the Control group. In addition, increased expression levels of circNUP98 were observed in NPC tissues compared to that in non-tumor tissues. Plasma circNUP98 was closely correlated with circNUP98 in NPC tissues, but not circNUP98 in non-tumor tissues. With plasma circNUP98 as a biomarker, NPC patients were separated from CL, NB, CS, LNT, and the Control groups. The Plasma expression of circNUP98 was found to be positively correlated with the poor survival of patients. Moreover, plasma circNUP98 was only closely associated with tumor metastasis, but not tumor size. CONCLUSION The expression of circNUP98 in plasma may be used to diagnose NPC and predict patients' survival.
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Affiliation(s)
- Bin Zhang
- E.N.T. Department, The Affiliated Hospital of Medical School of Ningbo University, No. 247, Renmin Road, Ningbo City, Zhejiang Province, 315020, P.R. China
| | - Bohuai Xu
- E.N.T. Department, The Affiliated Hospital of Medical School of Ningbo University, No. 247, Renmin Road, Ningbo City, Zhejiang Province, 315020, P.R. China
| | - Lujie Yu
- E.N.T. Department, The Affiliated Hospital of Medical School of Ningbo University, No. 247, Renmin Road, Ningbo City, Zhejiang Province, 315020, P.R. China
| | - Yingying Pei
- E.N.T. Department, The Affiliated Hospital of Medical School of Ningbo University, No. 247, Renmin Road, Ningbo City, Zhejiang Province, 315020, P.R. China
| | - Yong He
- E.N.T. Department, The Affiliated Hospital of Medical School of Ningbo University, No. 247, Renmin Road, Ningbo City, Zhejiang Province, 315020, P.R. China
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Mei J, Zuo J, Mei J, Liu G, Xiao P. Circ-NUP98 Promotes Lung Adenocarcinoma Development Through Regulating CBX1 by miR-188-3p. Biochem Genet 2023:10.1007/s10528-023-10609-0. [PMID: 38129720 DOI: 10.1007/s10528-023-10609-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 11/16/2023] [Indexed: 12/23/2023]
Abstract
Lung cancer has a high morbidity and mortality among malignant tumors, and lung adenocarcinoma (LUAD) is the main type of lung cancer. In recent years, circular RNAs (circRNAs) have been confirmed to play an important role in the generation and development of human cancer. However, the specific role and mechanism of circ-NUP98 in LUAD are still unclear and need to be further investigated. Circ-NUP98, microRNA-188-3p (miR-188-3p), and chromobox homolog 1 (CBX1) levels were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Cell-counting Kit-8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU) assay, flow cytometry, wound healing, and transwell assay were used to observe LUAD cell proliferation, apoptosis, migration, invasion, and cell-cycle progression. Malondialdehyde (MDA) and superoxide dismutase (SOD) levels were examined using special assay kits. CyclinD1, Bcl-2-related X protein (Bax), matrix metalloproteinase 9 (MMP9) protein, and CBX1 protein levels were determined using Western blot. The interaction between miR-188-3p and circ-NUP98 or CBX1 was identified by dual-luciferase reporter and RNA immunoprecipitation (RIP) assay. In vivo efficacy of circ-NUP98 was evaluated in a xenograft tumor model. Besides, the expression of CBX1 and KI67 in the tumors was detected by immunohistochemical (IHC) assay. Circ-NUP98 and CBX1 expressions were upregulated in LUAD tissues and cells, and miR-188-3p was decreased. Downregulation of circ-NUP98 could inhibit the proliferation, migration, invasion, and oxidative stress, and promote apoptosis of LUAD cells. Mechanism experiments showed that circ-NUP98 acted as a sponge for miR-188-3p to increase CBX1 expression. Knockdown of circ-NUP98 could inhibit the growth of LUAD tumors in vivo. Circ-NUP98 might promote the malignant development of LUAD via the miR-188-3p/CBX1 axis, which might provide a potential new marker for early diagnosis of LUAD.
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Affiliation(s)
- Jie Mei
- Department of Clinical Laboratory, The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou, 450000, China
| | - Jing Zuo
- Department of Clinical Laboratory, The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou, 450000, China
| | - Jiazhuan Mei
- Department of Medical Oncology, The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), No. 33, Huanghe Road, Jinshui District, Zhengzhou, 450000, China.
| | - Guiju Liu
- Department of Medical Oncology, The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), No. 33, Huanghe Road, Jinshui District, Zhengzhou, 450000, China
| | - Peng Xiao
- Department of Medical Oncology, The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), No. 33, Huanghe Road, Jinshui District, Zhengzhou, 450000, China
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Huang C, Esfani Sarafraz P, Enayati P, Mortazavi Mamaghani E, Babakhanzadeh E, Nazari M. Circular RNAs in renal cell carcinoma: from mechanistic to clinical perspective. Cancer Cell Int 2023; 23:288. [PMID: 37993909 PMCID: PMC10664289 DOI: 10.1186/s12935-023-03128-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 11/07/2023] [Indexed: 11/24/2023] Open
Abstract
CircRNAs, a special type of noncoding RNAs characterized by their stable structure and unique abilities to form backsplicing loops, have recently attracted the interest of scientists. These RNAs are abundant throughout the body and play important roles such as microRNA sponges, templates for transcription, and regulation of protein translation and RNA-binding proteins. Renal cancer development is highly correlated with abnormal circRNA expression in vivo. CircRNAs are currently considered promising targets for novel therapeutic approaches as well as possible biomarkers for prognosis and diagnosis of various malignancies. Despite our growing understanding of circRNA, numerous questions remain unanswered. Here, we address the characteristics of circRNAs and their function, focusing in particular on their impact on drug resistance, metabolic processes, metastasis, cell growth, and programmed cell death in renal cancer. In addition, the application of circRNAs as prognostic and diagnostic biomarkers will be discussed.
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Affiliation(s)
- Chunjie Huang
- School of Medicine, Nantong University, Nantong, China
| | | | - Parisa Enayati
- Biological Sciences Department, Northern Illinois University, DeKalb, Illinois, USA
| | | | - Emad Babakhanzadeh
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Nazari
- Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, 64155-65117, Yazd, Iran.
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Villar SF, Ferrer-Sueta G, Denicola A. The multifaceted nature of peroxiredoxins in chemical biology. Curr Opin Chem Biol 2023; 76:102355. [PMID: 37385138 DOI: 10.1016/j.cbpa.2023.102355] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 07/01/2023]
Abstract
Peroxiredoxins (Prx), thiol-dependent peroxidases, were first identified as H2O2 detoxifiers, and more recently as H2O2 sensors, intermediates in redox-signaling pathways, metabolism modulators, and chaperones. The multifaceted nature of Prx is not only dependent on their peroxidase activity but also strongly associated with specific protein-protein interactions that are being identified, and where the Prx oligomerization dynamics plays a role. Their oxidation by a peroxide substrate forms a sulfenic acid that opens a route to channel the redox signal to diverse protein targets. Recent research underscores the importance of different Prx isoforms in the cellular processes behind disease development with potential therapeutic applications.
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Affiliation(s)
- Sebastián F Villar
- Laboratorio de Fisicoquímica Biológica, Instituto de Química Biológica, Facultad de Ciencias, Montevideo, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay
| | - Gerardo Ferrer-Sueta
- Laboratorio de Fisicoquímica Biológica, Instituto de Química Biológica, Facultad de Ciencias, Montevideo, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay
| | - Ana Denicola
- Laboratorio de Fisicoquímica Biológica, Instituto de Química Biológica, Facultad de Ciencias, Montevideo, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay.
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7
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Zhang ZH, Wang Y, Zhang Y, Zheng SF, Feng T, Tian X, Abudurexiti M, Wang ZD, Zhu WK, Su JQ, Zhang HL, Shi GH, Wang ZL, Cao DL, Ye DW. The function and mechanisms of action of circular RNAs in Urologic Cancer. Mol Cancer 2023; 22:61. [PMID: 36966306 PMCID: PMC10039696 DOI: 10.1186/s12943-023-01766-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 03/17/2023] [Indexed: 03/27/2023] Open
Abstract
Kidney, bladder, and prostate cancer are the three major tumor types of the urologic system that seriously threaten human health. Circular RNAs (CircRNAs), special non-coding RNAs with a stabile structure and a unique back-splicing loop-forming ability, have received recent scientific attention. CircRNAs are widely distributed within the body, with important biologic functions such as sponges for microRNAs, as RNA binding proteins, and as templates for regulation of transcription and protein translation. The abnormal expression of circRNAs in vivo is significantly associated with the development of urologic tumors. CircRNAs have now emerged as potential biomarkers for the diagnosis and prognosis of urologic tumors, as well as targets for the development of new therapies. Although we have gained a better understanding of circRNA, there are still many questions to be answered. In this review, we summarize the properties of circRNAs and detail their function, focusing on the effects of circRNA on proliferation, metastasis, apoptosis, metabolism, and drug resistance in kidney, bladder, and prostate cancers.
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Affiliation(s)
- Zi-Hao Zhang
- Qingdao Institute, School of Life Medicine, Department of Urology, Fudan University Shanghai Cancer Center, Fudan University, Qingdao, 266500, China
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Yue Wang
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Ya Zhang
- Department of Nephrology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Sheng-Feng Zheng
- Qingdao Institute, School of Life Medicine, Department of Urology, Fudan University Shanghai Cancer Center, Fudan University, Qingdao, 266500, China
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Tao Feng
- Qingdao Institute, School of Life Medicine, Department of Urology, Fudan University Shanghai Cancer Center, Fudan University, Qingdao, 266500, China
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Xi Tian
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Mierxiati Abudurexiti
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
- Shanghai Pudong New Area Gongli Hospital, Shanghai, 200135, China
| | - Zhen-Da Wang
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Wen-Kai Zhu
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Jia-Qi Su
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Hai-Liang Zhang
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Guo-Hai Shi
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Zi-Liang Wang
- Institute of Cancer Research, Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China
| | - Da-Long Cao
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China
| | - Ding-Wei Ye
- Department of Urology, State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200433, China.
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong'an Road, Shanghai, 200032, People's Republic of China.
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Rashedi S, Mardani M, Rafati A, Khavandi MM, Mohammadi F, Javanshir S, Sarallah R, Dolatshahi M, Sabahi M, Azadnajafabad S, Tavolinejad H, Rezaei N. Circular RNAs as prognostic and diagnostic biomarkers in renal cell carcinoma. J Clin Lab Anal 2022; 36:e24670. [PMID: 35989533 PMCID: PMC9550963 DOI: 10.1002/jcla.24670] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 11/10/2022] Open
Abstract
Background Circular RNAs (circRNAs) play pivotal roles in proliferation, apoptosis, migration, and invasion of renal cell carcinoma (RCC) cells. This study is aimed to systematically summarize the current evidence regarding the clinical implications of circRNAs in RCC patients. Methods A systematic search in PubMed, Embase, and Web of Science was performed until January 1, 2022. The correlation between the expression of circRNAs and clinicopathological, prognostic, and diagnostic features of RCC was evaluated using the meta‐analysis. Results Ultimately, 41 studies with 3485 RCC patients were included in this study: 26 studies for clinicopathological features, 31 studies for prognosis, and eight studies for diagnosis. Altered expression of circRNAs was significantly associated with clinicopathological characteristics of RCC, including tumor size, tumor stage, lymph node metastasis, distant metastasis, and TNM stage. The tumor promoter circRNAs were associated with reduced overall survival (OS) (Hazard Ratio (HR) = 1.98, 95% confidence interval [CI] 1.68–2.34) and disease/progression/recurrence‐free survival (DFS/PFS/RFS) (HR = 2.34, 95% CI 1.85–2.97). Contrarily, the tumor suppressor circRNAs were linked with better OS (HR = 0.49, 95% CI 0.40–0.60) and DFS/PFS/RFS (HR = 0.40, 95% CI 0.28–0.59). The pooled sensitivity and specificity of circRNAs for RCC diagnosis in tissue samples were both 0.84. These results in fluid samples (serum and urine) were 0.78 and 0.69, respectively. Conclusion CircRNAs can serve as promising diagnostic and prognostic biomarkers for RCC.
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Affiliation(s)
- Sina Rashedi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.,Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahta Mardani
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.,School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Rafati
- Rajai Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Fatemeh Mohammadi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Salar Javanshir
- School of Medicine, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Rojin Sarallah
- School of Medicine, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Mahsa Dolatshahi
- NeuroImaging Network (NIN), Universal Scientific Education and Research Network (USERN), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammadmahdi Sabahi
- Neurosurgery Research Group (NRG), Student Research Committee, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sina Azadnajafabad
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Tavolinejad
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.,Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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9
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Dong Q, Dong L, Zhu Y, Wang X, Li Z, Zhang L. Circular ribonucleic acid nucleoporin 98 knockdown alleviates high glucose-induced proliferation, fibrosis, inflammation and oxidative stress in human glomerular mesangial cells by regulating the microribonucleic acid-151-3p-high mobility group AT-hook 2 axis. J Diabetes Investig 2022; 13:1303-1315. [PMID: 35482475 PMCID: PMC9340880 DOI: 10.1111/jdi.13821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/27/2022] [Accepted: 04/27/2022] [Indexed: 11/27/2022] Open
Abstract
AIMS/INTRODUCTION This study aimed to investigate the role and mechanism of circular ribonucleic acid nucleoporin 98 (circNUP98) in diabetic nephropathy (DN). MATERIALS AND METHODS Human glomerular mesangial cells (HMCs) were stimulated with high glucose (HG) to imitate the growth environment of cells under the DN condition. Levels of genes and proteins were tested by quantitative reverse transcription polymerase chain reaction and western blot. Cell proliferation, apoptosis and inflammatory response were analyzed by using cell counting kit-8, flow cytometry and enzyme-linked immunosorbent assay analysis, respectively. Oxidative stress and fibrosis were evaluated by detecting the activity of reactive oxygen species, malondialdehyde, superoxide dismutase, fibronectin and collagen IV. The binding interaction between microribonucleic acid (miR)-151-3p and high mobility group AT-hook 2 (HMGA2) or circNUP98 was confirmed using dual-luciferase reporter, pull-down and ribonucleic acid immunoprecipitation assays. Exosomes were isolated by ultracentrifugation, and qualified by transmission electron microscopy, nanoparticle tracking analysis and western blot. RESULTS CircNUP98 expression was higher in the serum of DN patients and HG-stimulated HMCs. Functionally, circNUP98 knockdown alleviated HG-induced proliferation, fibrosis, inflammatory response and oxidative stress in HMCs. Mechanistically, circNUP98 directly sponged miR-151-3p, which targeted HMGA2. Rescue experiments showed that miR-151-3p reversed the inhibitory effects of circNUP98 knockdown on HG-induced HMC dysfunction. Furthermore, miR-151-3p re-expression also led to an inhibition of the aforementioned biological behaviors, which was attenuated by HMGA2 upregulation. Besides that, CircNUP98 was found to be packaged into exosomes of DN, and exosomal circNUP98 possessed diagnostic value for DN patients. CONCLUSION CircNUP98 knockdown alleviates HG-induced proliferation, fibrosis inflammation and oxidative stress in HMCs by regulating the miR-151-3p-HMGA2 axis, which might provide a potential approach for DN therapeutics.
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Affiliation(s)
- Qianlan Dong
- Kidney Disease and Dialysis CenterShaanxi Provincial People's HospitalXi'an, ShaanxiChina
| | - Longhao Dong
- Department of EmergencyTongchuan People's HospitalTongchuan, ShaanxiChina
| | - Yanting Zhu
- Kidney Disease and Dialysis CenterShaanxi Provincial People's HospitalXi'an, ShaanxiChina
| | - Xiaoming Wang
- Kidney Disease and Dialysis CenterShaanxi Provincial People's HospitalXi'an, ShaanxiChina
| | - Zhenjiang Li
- Kidney Disease and Dialysis CenterShaanxi Provincial People's HospitalXi'an, ShaanxiChina
| | - Linping Zhang
- Kidney Disease and Dialysis CenterShaanxi Provincial People's HospitalXi'an, ShaanxiChina
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10
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Liao D, Lin Q, Xiao H, Zhang F, Han Q. Circular RNAs as Prognostic Biomarkers in Renal Cell Carcinoma: A Systematic Review and Meta-Analysis. Front Genet 2022; 13:878700. [PMID: 35754794 PMCID: PMC9213809 DOI: 10.3389/fgene.2022.878700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Recently, several studies have shown that circRNAs play critical roles in renal cell carcinoma (RCC) oncogenesis and development. However, whether the level of circRNA expression in RCC is correlated with prognosis remains unclear. Hence, we conducted a meta-analysis to explore the association between circRNA expression levels and the prognosis of RCC patients. Methods: We systematically searched Ovid, Embase, PubMed, and Web of Science from January 1950 to June 2021 for the literature published in English. According to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, we conducted a meta-analysis of 21 selected studies to confirm the association between the circRNA expression level and prognosis of RCC. Results: This meta-analysis included 20 articles and 1,559 RCC patients. The results showed that the high expression of oncogenic circRNAs (OS: HR = 2.04, 95% CI: 1.63–2.56, p = 0.20; PFS: HR = 2.82, 95% CI: 0.82–9.72, p = 0.03) and low expression of tumor-suppressor circRNAs (OS: HR: 1.92, 95% CI: 1.61–2.30, p < 0.05; PFS: HR: 2.40, 95% CI: 1.76–3.28, p = 0.36) were closely related to poor survival outcomes. Conclusion: The meta-analysis verifies that circRNAs can be potential prognostic biomarkers of RCC.
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Affiliation(s)
- Dan Liao
- Department of Nephrology, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
| | - Qiu Lin
- Department of Nephrology, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
| | - Huan Xiao
- Department of Radiology, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
| | - Fenglian Zhang
- Department of Nephrology, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
| | - Qin Han
- School of Public Health, Chengdu Medical College, Chengdu, China
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11
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Osca-Verdegal R, Beltrán-García J, Górriz JL, Martínez Jabaloyas JM, Pallardó FV, García-Giménez JL. Use of Circular RNAs in Diagnosis, Prognosis and Therapeutics of Renal Cell Carcinoma. Front Cell Dev Biol 2022; 10:879814. [PMID: 35813211 PMCID: PMC9257016 DOI: 10.3389/fcell.2022.879814] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/31/2022] [Indexed: 12/12/2022] Open
Abstract
Renal cell carcinoma is the most common type of kidney cancer, representing 90% of kidney cancer diagnoses, and the deadliest urological cancer. While the incidence and mortality rates by renal cell carcinoma are higher in men compared to women, in both sexes the clinical characteristics are the same, and usually unspecific, thereby hindering and delaying the diagnostic process and increasing the metastatic potential. Regarding treatment, surgical resection remains the main therapeutic strategy. However, even after radical nephrectomy, metastasis may still occur in some patients, with most metastatic renal cell carcinomas being resistant to chemotherapy and radiotherapy. Therefore, the identification of new biomarkers to help clinicians in the early detection, and treatment of renal cell carcinoma is essential. In this review, we describe circRNAs related to renal cell carcinoma processes reported to date and propose the use of some in therapeutic strategies for renal cell carcinoma treatment.
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Affiliation(s)
- Rebeca Osca-Verdegal
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, Spain
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
| | - Jesús Beltrán-García
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, Spain
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
- INCLIVA Biomedical Research Institute, Valencia, Spain
| | - José Luis Górriz
- Department of Nephrology, University Clinic Hospital, INCLIVA, University of Valencia, Valencia, Spain
| | | | - Federico V. Pallardó
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, Spain
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
- INCLIVA Biomedical Research Institute, Valencia, Spain
| | - José Luis García-Giménez
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, Spain
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
- INCLIVA Biomedical Research Institute, Valencia, Spain
- EpiDisease S.L. (Spin-Off CIBER-ISCIII), Parc Científic de la Universitat de València, Valencia, Spain
- *Correspondence: José Luis García-Giménez,
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12
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Huang H, Chen T, Li F, Jin D, Li C, Yang Y, Liu X, Wang D, Di J. The functions, oncogenic roles, and clinical significance of circular RNAs in renal cell carcinoma. Med Oncol 2022; 39:72. [PMID: 35568747 DOI: 10.1007/s12032-022-01669-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 01/28/2022] [Indexed: 12/24/2022]
Abstract
Renal cell carcinoma (RCC) is the most common form of malignancy affecting the kidneys. Circular RNAs (circRNAs) are non-coding RNAs that are derived from exonic or intronic sequences through a selective shearing process. There is growing evidence that these circRNAs can influence a range of biological pathways by serving as protein decoys, microRNA sponges, regulators of transcriptional activity, or templates for protein translation. The dysregulation of circRNA expression patterns is a hallmark of RCC and other cancer types, and there is strong evidence that these RNA species can play central roles in the onset and progression of RCC tumors. In the present review, we summarized recent findings on the functional roles and clinical impacts of circRNAs in RCC. Further, we discussed their potential utility as diagnostic biomarkers or targets for therapeutic intervention.
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Affiliation(s)
- Hui Huang
- Department of Oncology, Kaizhou District People's Hospital of Chongqing, Chongqing, China
| | - Tao Chen
- Department of Osteology, Kaizhou District People's Hospital of Chongqing, Chongqing, China
| | - Fei Li
- Department of Osteology, Kaizhou District People's Hospital of Chongqing, Chongqing, China
| | - Dan Jin
- Department of Oncology, Kaizhou District People's Hospital of Chongqing, Chongqing, China
| | - Chuan Li
- Department of Oncology, Kaizhou District People's Hospital of Chongqing, Chongqing, China
| | - Yongbo Yang
- Department of Oncology, Kaizhou District People's Hospital of Chongqing, Chongqing, China
| | - Xuyang Liu
- Department of Oncology, Kaizhou District People's Hospital of Chongqing, Chongqing, China
| | - Dongmiao Wang
- Department of Oncology, Kaizhou District People's Hospital of Chongqing, Chongqing, China.
| | - Jiehui Di
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China. .,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China. .,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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13
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Qi Q, Sun Y, Yang Y, Liu Y. Circ_0000274 contributes to renal cell carcinoma progression by regulating miR-338-3p/NUCB2 axis and JAK1/STAT3 pathway. Transpl Immunol 2022; 74:101626. [DOI: 10.1016/j.trim.2022.101626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 05/07/2022] [Accepted: 05/08/2022] [Indexed: 10/18/2022]
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14
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Li W, Li G, Cao L. Circular RNA Eps15-homology domain-containing protein 2 induce resistance of renal cell carcinoma to sunitinib via microRNA-4731-5p/ABCF2 axis. Bioengineered 2022; 13:9729-9740. [PMID: 35412955 PMCID: PMC9161974 DOI: 10.1080/21655979.2022.2059960] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Circular RNAs (circRNAs) are linked with the occurrence and progression of renal cell carcinoma (RCC). However, circRNAs’ mechanism in developing resistance to RCC has not been clarified. This research assessed the role and mechanism of circular RNA circ Eps15-homology domain-containing protein 2 (EHD2) in the resistance of sunitinib (SU) to RCC. ACHN, 786-O, 769P, and HEK-293 T cells and RCC tissue samples were used for the investigations. The circEHD2 expression in RCC cells and tissues was determined through RT-qPCR. Association of circEHD2 with RCC histological grade of RCC was done through Chi-square. MiR-4731-5p, ABCF2, and circEHD2 were transfected into RCC cell lines. A dual-luciferase reporter assay was used to determine the interaction between miR-4731-5p, circEHD2, and ABCF2. MTT assay was used to analyze cell viability, while apoptosis was studied using flow cytometry. Colony-formation and transwell experiments were used to assess migration and invasion. The ATP Binding Cassette Subfamily F Member 2 (ABCF2) expression was analyzed through western blot. The results showed increased circEHD2 in SU-resistant RCC tissues and cell lines and implicated in RCC histological grade and SU resistance. Knock-down of circEHD2 down-regulated the resistance of RCC to SU in vitro and vivo; circEHD2 bound to miR-4731-5p to mediate ABCF2 in RCC; ABCF2 rescued the inhibitory effect of circEHD2 knock-down on SU resistance of RCC. In conclusion, circEHD2 enhances RCC resistance to SU via acting as a miR-4731-5p sponge to mediate ABCF2. MiR-4731-5p can target circEHD2 and ABCF2, thus providing a novel and effective therapeutic against renal cell carcinoma.
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Affiliation(s)
- Wen Li
- Department of Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan City, Shandong Province, China
| | - GaiXia Li
- Department of Electrocardiography Room, Qingdao Women's and Children's Hospital, Qingdao City, Shandong Province, China
| | - LuQuan Cao
- Department of Prenatal Diagnosis Center, Jinan Maternal and Child Health Hospital Prenatal Diagnosis Center, Jinan City, Shandong Province, China
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15
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Cao R, Zhang W, Zhang H, Wang L, Chen X, Ren X, Cheng B, Xia J. Comprehensive Analysis of the PRDXs Family in Head and Neck Squamous Cell Carcinoma. Front Oncol 2022; 12:798483. [PMID: 35350568 PMCID: PMC8957933 DOI: 10.3389/fonc.2022.798483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 02/14/2022] [Indexed: 12/24/2022] Open
Abstract
The peroxidase family of peroxiredoxins (PRDXs) plays a vital role in maintaining the intracellular balance of ROS. However, their function in head and neck squamous cell carcinoma (HNSCC) has not been investigated. We therefore explored the value of PRDXs in HNSCC. We found that the expression of PRDX1, PRDX4, and PRDX5 in HNSCC increased while the expression of PRDX2 decreased. Moreover, the high expression of PRDX4/5/6 indicated a poor prognosis. Lower expression of PRDX1/5 was linked to more immune cell infiltration, higher expression of immune-related molecules and a more likely response to anti-PD-1 treatment. Moreover, PRDX5 knockdown inhibited HNSCC cell proliferation, invasion and metastasis and it might promote apoptosis through its antioxidant property. Taken together, our study highlights the potential role of PRDXs in HNSCC. The function of PRDX5 in the development of HNSCC and the formation of the immune microenvironment makes it a promising potential therapeutic target.
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Affiliation(s)
- Ruoyan Cao
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Weilin Zhang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Hongjian Zhang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Lixuan Wang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xijuan Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xianyue Ren
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Bin Cheng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Juan Xia
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
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16
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Zheng X, Hua S, Zhao H, Gao Z, Cen D. Overexpression of hepatocyte growth factor protects chronic myeloid leukemia cells from apoptosis induced by etoposide. Oncol Lett 2022; 23:122. [PMID: 35261636 DOI: 10.3892/ol.2022.13242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 12/10/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Xiaojiao Zheng
- Department of Obstetrics and Gynecology, Ningbo First Hospital, Ningbo, Zhejiang 315035, P.R. China
| | - Shixuan Hua
- Department of Laboratory Medicine, Ningbo Yinzhou No. 2 Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Hang Zhao
- Department of Laboratory Medicine, Ningbo Yinzhou No. 2 Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Zhou Gao
- Department of Laboratory Medicine, Ningbo Yinzhou No. 2 Hospital, Ningbo, Zhejiang 315100, P.R. China
| | - Dong Cen
- Department of Laboratory Medicine, Ningbo Yinzhou No. 2 Hospital, Ningbo, Zhejiang 315100, P.R. China
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17
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Zhou Y, Li C, Wang Z, Tan S, Liu Y, Zhang H, Li X. CircRNAs as Novel Biomarkers and Therapeutic Targets in Renal Cell Carcinoma. Front Mol Biosci 2022; 9:833079. [PMID: 35223991 PMCID: PMC8874010 DOI: 10.3389/fmolb.2022.833079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/24/2022] [Indexed: 12/28/2022] Open
Abstract
Circular RNAs (circRNAs) are a type of long non-coding RNA with covalently closed loops that are naturally resistant to exoribonuclease. With the rapid development of high-throughput sequencing technologies and bioinformatics, increasing data suggest that circRNAs are abnormally expressed in renal cell carcinoma (RCC) and act as important regulators of RCC carcinogenesis and progression. CircRNAs play important biological roles in modulating cell proliferation, migration, invasion, apoptosis, and gemcitabine chemoresistance in RCC. Most of the circRNAs studied in RCC have been reported to be significantly associated with many clinicopathologic characteristics and survival parameters of RCC. The stability and specificity of circRNAs enable them potential molecular markers for RCC diagnosis and prognosis. Moreover, circRNAs have emerged as targets for developing new therapies, because they can regulate various signaling pathways associated with RCC initiation and progression. In this review, we briefly summarize the biogenesis, degradation, and biological functions of circRNAs as well as the potential clinical applications of these molecules for RCC diagnosis, prognosis, and targeted therapy.
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Affiliation(s)
- Yuxia Zhou
- The First Affiliated Hospital, Department of Medical Oncology, Hengyang Medical School, University of South China, Hengyang, China
| | - Cheng Li
- The First Affiliated Hospital, Department of Medical Oncology, Hengyang Medical School, University of South China, Hengyang, China
| | - Zhenping Wang
- The First Affiliated Hospital, Department of Medical Oncology, Hengyang Medical School, University of South China, Hengyang, China
| | - Shuangfeng Tan
- The First Affiliated Hospital, Department of Medical Oncology, Hengyang Medical School, University of South China, Hengyang, China
| | - Yiqi Liu
- The Second Affiliated Hospital, Department of Urology, Hengyang Medical School, University of South China, Hengyang, China
| | - Hu Zhang
- The First Affiliated Hospital, Department of Urology, Hengyang Medical School, University of South China, Hengyang, China
| | - Xuefeng Li
- The First Affiliated Hospital, Department of Medical Oncology, Hengyang Medical School, University of South China, Hengyang, China
- *Correspondence: Xuefeng Li,
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18
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Everolimus accelerates Erastin and RSL3-induced ferroptosis in renal cell carcinoma. Gene 2022; 809:145992. [PMID: 34648917 DOI: 10.1016/j.gene.2021.145992] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/20/2021] [Accepted: 10/04/2021] [Indexed: 01/06/2023]
Abstract
Renal cell carcinoma (RCC) is a common type of urological cancer and is often diagnosed at an advanced stage. Everolimus, an inhibitor of mammalian target of rapamycin (mTOR), is used as second-line therapy for sorafenib- or sunitinib-refractory metastatic RCC. However, the clinical benefits of Everolimus are often hampered by drug resistance. Ferroptosis is a novel form of regulated cell death that has recently been implicated in the development and therapeutic responses to different cancers. RSL3 ((1S,3R)-RSL3) and Erastin are two experimental compounds that can induce ferroptosis. In the present study, we evaluated the anti-tumor effects of Everolimus in combination with RSL3 or Erastin in RCC. Everolimus and RSL3/Erastin could synergistically inhibit the viability and induce ferroptosis in RCC cells. Mechanistically, the inhibition of the mTOR-4EBP1 axis was found to be essential for the synergistic effects of Everolimus and RSL3/Erastin. Moreover, the forced expression of GPX4 abrogated ferroptosis induced by the combined treatment of Everolimus and RSL3/Erastin. Taken together, these results demonstrated that Everolimus in combination with RSL3/Erastin is a promising therapeutic option for RCC treatment and it may also help to overcome the limitation in clinical applicability of Everolimus.
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19
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Wang W, Xie S, Yuan D, He D, Fang L, Ge F. Systematic Review With Meta-Analysis: Diagnostic, Prognostic and Clinicopathological Significance of CircRNA Expression in Renal Cancer. Front Oncol 2022; 11:773236. [PMID: 35155185 PMCID: PMC8832283 DOI: 10.3389/fonc.2021.773236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 12/31/2021] [Indexed: 12/12/2022] Open
Abstract
Background Renal cancer (RC) is one of the most common malignant tumors of the urinary system, and molecular targets for the specific diagnosis and treatment of RC have been widely explored. The purpose of this study was to systematically analyze circular RNAs (circRNAs), which may serve as novel tumor markers in terms of the diagnosis, prognosis and clinicopathological characteristics of RC. Methods PubMed and Web of Science were systematically searched for literature as up to July 30, 2021. All included studies were evaluated by the evaluation system, and the results were satisfactory. Hazard ratios (HRs) and odds ratios (ORs) were used to assess the association of circRNAs with diagnostic and clinicopathological indicators. The sensitivity (SEN), specificity (SPE), positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio and area under the summary receiver operating characteristic curve (AUC) were combined to evaluate the diagnostic performance of circRNAs in RC. Results We included 22 studies that met the criteria, including 18 that were prognostic, 4 that were diagnostic, and 12 that were clinicopathologically relevant. In terms of prognosis, we found that upregulated circRNAs were positively associated with poor overall survival in patients with RC (HR=1.63, 95% CI=1.43–1.85). In terms of diagnosis, the combined SEN, SPE and AUC of circRNAs in the diagnosis of RC were 0.82, 0.84 and 0.89 (0.86–0.91), respectively. In terms of clinicopathological features, upregulated circRNAs were associated with the Fuhrman grade (OR=0.641, 95% CI=0.471–0.873), T stage (OR=0.236, 95% CI=0.141–0.396), TNM stage (OR=0.225, 95% CI=0.158–0.321) and lymphatic metastasis (OR=0.329, 95% CI=0.193–0.560). Conclusion Our meta-analysis confirms that circRNAs may be candidate biomarkers for the diagnosis, prognosis, and clinicopathological indicators of RC.
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Affiliation(s)
- Wujun Wang
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Shengfang Xie
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
| | - Dongping Yuan
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Dandan He
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
| | - Liming Fang
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
- *Correspondence: Liming Fang, ; Fengfeng Ge,
| | - Fengfeng Ge
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
- *Correspondence: Liming Fang, ; Fengfeng Ge,
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20
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Li X, Su S, Ye D, Yu Z, Lu W, Liu L. Hsa_circ_0020850 promotes the malignant behaviors of lung adenocarcinoma by regulating miR-326/BECN1 axis. World J Surg Oncol 2022; 20:13. [PMID: 35012553 PMCID: PMC8750879 DOI: 10.1186/s12957-021-02480-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 12/17/2021] [Indexed: 11/10/2022] Open
Abstract
Background Circular RNAs (circRNAs) are a novel type of endogenous RNAs and play vital roles in lung adenocarcinoma. However, the function and underlying mechanism of circ_0020850 in lung adenocarcinoma remain unknown. Methods The levels of circ_0020850, microRNA-326 (miR-326), and Beclin1 (BECN1) were analyzed by real-time quantitative polymerase chain reaction and western blot analyses. The migration and invasion were determined by wound healing and transwell assays, respectively. Colony formation assay was used to assess cell proliferation ability. The angiogenic ability was analyzed by Matrigel angiogenesis assay. The apoptosis rate was calculated by flow cytometry assay. Dual-luciferase reporter, RNA immunoprecipitation (RIP), and RNA pull-down assays were conducted to confirm the interaction relationship among circ_0020850, miR-326, and BECN1. A xenograft mice model was established to assess the role of circ_0020850 in vivo. Results We found that circ_0020850 was obviously overexpressed in lung adenocarcinoma tissues and cells. Knockdown of circ_0020850 inhibited migration, invasion, proliferation, and angiogenesis but induced apoptosis in lung adenocarcinoma cells in vitro, as well as curbed tumor growth in vivo. MiR-326 was a target of circ_0020850, and knockdown of miR-326 abolished the suppression effect of circ_0020850 on the malignant behaviors of lung adenocarcinoma cells. Additionally, miR-326 could negatively regulate BECN1 expression, thereby regulating lung adenocarcinoma cell phenotypes. Importantly, circ_0020850 could directly bind to miR-326 and thus relieve miR-326-mediated inhibition on BECN1. Conclusion Circ_0020850 promoted the malignant development of lung adenocarcinoma by regulating miR-326/BECN1 axis, indicating that circ_0020850 might serve as a promising target for the diagnosis and treatment of lung adenocarcinoma patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12957-021-02480-3.
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Affiliation(s)
- Xiaoju Li
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Shengtian Su
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Dan Ye
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Zhigao Yu
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Wenjing Lu
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Liang Liu
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China.
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21
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Lu J, Lou G, Jiang L, Liu X, Jiang J, Wang X. CircNUP98 Suppresses the Maturation of miR-519a-3p in Glioblastoma. Front Neurol 2021; 12:679745. [PMID: 34867700 PMCID: PMC8636316 DOI: 10.3389/fneur.2021.679745] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 10/14/2021] [Indexed: 01/01/2023] Open
Abstract
Circular RNA (circNUP98) has been reported to promote renal cancer; however, its role in other cancers is unknown. The function of circNUP98 in glioblastoma (GB) cancer was explored in this study. A total of 58 GB tissue samples were collected to study the expression of circNUP98 and miR-519a-3p [both the mature and pre-mature microRNA (miRNA)] by quantitative real-time PCR (RT-qPCR) and heatmap analysis. The subcellular location that expresses circNUP98 was analyzed by nuclear fractionation assay. RNA pull-down assay was performed to evaluate the interaction between circNUP98 and pre-mature miR-519a-3p. Overexpression assays were performed to investigate the role of circNUP98 in the regulation of both the mature and pre-mature miR-519a-3p. The role of circNUP98 and miR-519a-3p in GB cell proliferation was explored by 5-bromo-2-deoxyuridine (BrdU) assay and was assessed in mouse xenograft model. Heatmap analysis showed that circNUP98 and pre-mature miR-519a-3p were upregulated in GB, while mature miR-519a-3p was downregulated in GB. Across the cancer tissues, circNUP98 was inversely correlated with mature miR-519a-3p, but positively correlated with pre-mature miR-519a-3p. In GB cells, circNUP98 was localized to both the nucleus and cytoplasm and it interacted with pre-mature miR-519a-3p. In GB cells, circNUP98 increased the expression levels of pre-mature miR-519a-3p and decreased the expression levels of mature miR-519a-3p. BrdU and cholecystokinin octapeptide (CCK-8) assays illustrated that overexpression of circNUP98 reduced the inhibitory effects of miR-519a-3p on cell proliferation. CircNUP98 contributed to larger tumors, which resulted in significantly reduced mice survival. CircNUP98 suppresses the maturation of miR-519a-3p to promote GB cell proliferation.
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Affiliation(s)
- Jun Lu
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, China
| | - Gaojie Lou
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, China
| | - Lin Jiang
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, China
| | - Xiaoxing Liu
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, China
| | - Jianxin Jiang
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, China
| | - Xiaolin Wang
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, China
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22
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Zhu S, Chen X, Wang JN, Xu JJ, Wang A, Li JJ, Wu S, Wu YY, Li XF, Huang C, Li J. Circular RNA circUbe2k promotes hepatic fibrosis via sponging miR-149-5p/TGF-β2 axis. FASEB J 2021; 35:e21622. [PMID: 33982351 DOI: 10.1096/fj.202002738r] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/25/2021] [Accepted: 04/12/2021] [Indexed: 12/12/2022]
Abstract
Abundant regulatory genes and complex circuits involving non-coding RNAs (ncRNAs) monitor the formation and development of hepatic fibrosis (HF). Circular RNAs (circRNAs) are a class of RNAs generated from protein coding genes by back-splicing, playing crucial roles in various pathological processes, including HF. However, little is known about mechanisms of action of circRNAs, let alone in HF. In this study, we found circUbe2k enhanced in CCl4 -induced HF mice and LX-2 cells stimulated with TGF-β1, regulating the development of HF. Restraining the expression of circUbe2k inhibited α-SMA and Col1α1 expression in CCl4 -induced HF mice and in LX-2 cells stimulated with TGF-β1. Furthermore, inhibiting circUbe2k expression reduced hepatic stellate cells (HSCs) activation and proliferation in vivo and in vitro. Mechanistically, we demonstrated a direct interaction between circUbe2k and miR-149-5p, which results in the modulation of TGF-β2 expressions. Together, circUbe2k may act as a "catalyst" of HSCs activation and HF through the circUbe2k/miR-149-5p/TGF-β2 axis. Our results provide unprecedented evidence for a significant role for circUbe2k to serve as a potential biomarker for HF therapy.
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Affiliation(s)
- Sai Zhu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xin Chen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jin-Jin Xu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Ao Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Juan-Juan Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Sha Wu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Yuan-Yuan Wu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Xiao-Feng Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China
| | - Cheng Huang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
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23
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Zhao Y, Guo H, Wang W, Zheng G, Wang Z, Wang X, Zhang Y. High-throughput screening of circRNAs reveals novel mechanisms of tuberous sclerosis complex-related renal angiomyolipoma. Hum Genomics 2021; 15:43. [PMID: 34243823 PMCID: PMC8272316 DOI: 10.1186/s40246-021-00344-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/01/2021] [Indexed: 01/22/2023] Open
Abstract
Objective Tuberous sclerosis complex (TSC) is a rare autosomal dominant disease characterized by lesions throughout the body. Our previous study showed the abnormal up-regulation of miRNAs plays an important part in the pathogenesis of TSC-related renal angiomyolipoma (TSC-RAML). circRNAs were known as important regulators of miRNA, but little is known about the circRNAs in TSC-RAMLs. Methods Microarray chips and RNA sequencing were used to identify the circRNAs and mRNAs that were differently expressed between the TSC-RAML and normal kidney tissue. A competitive endogenous RNA (ceRNA) regulatory network was constructed to reveal the regulation of miRNAs and mRNAs by the circRNAs. The biological functions of circRNA and mRNA were analyzed by pathway analysis. Microenvironmental cell types were estimated with the MCP-counter package. Results We identified 491 differentially expressed circRNAs (DECs) and 212 differentially expressed genes (DEGs), and 6 DECs were further confirmed by q-PCR. A ceRNA regulatory network which included 6 DECs, 5 miRNAs, and 63 mRNAs was established. Lipid biosynthetic process was significantly up-regulated in TSC-RAML, and the humoral immune response and the leukocyte chemotaxis pathway were found to be down-regulated. Fibroblasts are enriched in TSC-RAML, and the up-regulation of circRNA_000799 and circRNA_025332 may be significantly correlated to the infiltration of the fibroblasts. Conclusion circRNAs may regulate the lipid metabolism of TSC-RAML by regulation of the miRNAs. Fibroblasts are enriched in TSC-RAMLs, and the population of fibroblast may be related to the alteration of circRNAs of TSC-RAML. Lipid metabolism in fibroblasts is a potential treatment target for TSC-RAML. Supplementary Information The online version contains supplementary material available at 10.1186/s40246-021-00344-1.
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Affiliation(s)
- Yang Zhao
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hao Guo
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Urology, Chengdu Second People's Hospital, Chengdu, Sichuan, China
| | - Wenda Wang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guoyang Zheng
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhan Wang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xu Wang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yushi Zhang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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24
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Chen R, Wang X, Zhou S, Zeng Z. LncRNA HOXA-AS2 Promotes Tumor Progression by Suppressing miR-567 Expression in Oral Squamous Cell Carcinoma. Cancer Manag Res 2021; 13:5443-5455. [PMID: 34267554 PMCID: PMC8275166 DOI: 10.2147/cmar.s305946] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 06/13/2021] [Indexed: 12/13/2022] Open
Abstract
Introduction Growing evidence suggests that long non-coding RNAs (lncRNAs), such as lncRNA HOXA-AS2, are critical regulators involved in human cancer. However, the biological functions and detailed mechanisms underlying how lncRNA HOXA-AS2 affects oral squamous cell carcinoma (OSCC) remain unexplored. Methods The expression of lncRNA HOXA-AS2 and miR-567 was determined in OSCC cell lines and clinical tissues by quantitative real-time PCR (qRT-PCR). Target site prediction and luciferase report assays were used to explore their potential interaction and binding sites between lncRNA HOXA-AS2 and miR-567. Overexpression or silencing expression of lncRNA HOXA-AS2 was performed to confirm that miR-567 was suppressed by lncRNA HOXA-AS2. WST-1 assay, crystal staining assay, and cell cycle analysis were used to assess the cell viability and proliferation ability. The target gene of miR-567 was predicted by Targetscan and validated by luciferase report assay as well as qRT-PCR and Western Blot. Xenograft nude mice model was done to demonstrate that lncRNA HOXA-AS2 promoted cell proliferation via targeting miR-567/CDK8 in vivo. Results LncRNA HOXA-AS2 was up-regulated in OSCC cells and tissues with the expression of miR-567 decreased. The tissue lncRNA HOXA-AS2 expression was found to positively correlate with the TNM stage and lymph node metastasis of OSCC patients. In terms of the mechanism, we found that lncRNA HOXA-AS2 negatively regulates miR-567 expression via a direct interaction. Functionally, overexpression of lncRNA HOXA-AS2 significantly promoted OSCC cell proliferation, while knockdown of lncRNA HOXA-AS2 significantly inhibited it. We also observed that miR-567 directly targets the 3' UTR of CDK8. Moreover, silencing lncRNA HOXA-AS2 inhibited tumor growth with the expression of miR-567 increased and CDK8 decreased in vivo. Conclusion LncRNA HOXA-AS2 was up-regulated in OSCC, and its up-regulation correlated with poor clinical outcomes. The lncRNA also promoted OSCC cell proliferation by directly binding to miR-567, leading to an increase in CDK8 expression. The potential prognostic value of lncRNA HOXA-AS2 should be explored in future studies.
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Affiliation(s)
- Rui Chen
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Xi Wang
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Diagnostic Medicine Designated by the Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Shixian Zhou
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Department of Pathology, Central Hospital of Jiangjin District, Chongqing, 402260, People's Republic of China
| | - Zongyue Zeng
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China
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25
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Jin L, Han C, Zhai T, Zhang X, Chen C, Lian L. Circ_0030998 promotes tumor proliferation and angiogenesis by sponging miR-567 to regulate VEGFA in colorectal cancer. Cell Death Discov 2021; 7:160. [PMID: 34226531 PMCID: PMC8257860 DOI: 10.1038/s41420-021-00544-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/16/2021] [Accepted: 06/03/2021] [Indexed: 12/15/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignancies worldwide. Circular RNAs (circRNAs) are involved in pathological processes, especially in the development of cancers, but the roles of circRNAs in CRC are largely unknown. In this study, we investigated the role and underlying mechanisms of Circ_0030998 in CRC cell proliferation and angiogenesis. We found that Circ_0030998 was upregulated in CRC tissues and cells, and its upregulation was related to poor prognosis in CRC patients. Circ_0030998 promoted CRC cell proliferation in vitro and in vivo, and facilitated the angiogenesis of HUVECs. Mechanistic studies demonstrated that Circ_0030998 acted as a miR-567 sponge to relieve its inhibitory effect on VEGFA. Rescue assays validated that Circ_0030998 functioned in CRC cell proliferation and angiogenesis relying on VEGFA. Our findings clarified the Circ_0030998/miR-567/VEGFA regulation axis and indicated that Circ_0030998 could be a potential therapeutic target for CRC.
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Affiliation(s)
- Longyang Jin
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chao Han
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Tianyu Zhai
- Department of General Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiaoyu Zhang
- Department of General Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Chun Chen
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Lei Lian
- Department of Colorectal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
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26
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Zhuang Q, Jin Z, Zheng X, Jin T, Xiang L. Long non‑coding RNA LINC00460 serves as a potential biomarker and oncogene via regulation of the miR‑320b/PBX3 axis in acute myeloid leukemia. Mol Med Rep 2021; 23:435. [PMID: 33846790 PMCID: PMC8060808 DOI: 10.3892/mmr.2021.12074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 10/16/2020] [Indexed: 12/26/2022] Open
Abstract
Long non-coding RNA 00460 (LINC00460) has been reported to be involved in the tumorigenesis of various cancer types. However, the function of LINC00460 in acute myeloid leukemia (AML) remains elusive. Therefore, the present study aimed to investigate the role of LINC00460 in AML. The expression of LINC00460 in the serum of 80 diagnosed patients with AML and 67 healthy controls was measured via reverse transcription-quantitative polymerase chain reaction, and the results were compared with clinical features and patient outcomes. The expression of LINC00460 in 45 patients with cytogenetically normal-AML (CN-AML) was also assayed. Receiver operating characteristic (ROC) curves were generated to evaluate the sensitivity and specificity of serum LINC00460. In addition, the effects of LINC00460 on the viability, cell cycle distribution and apoptosis of AML cells were investigated. Bioinformatics tools were used to identify the possible mechanisms of how LINC00460 affects AML cells. It was found that the expression of LINC00460 was significantly upregulated in the serum of patients with AML and those with CN-AML. Higher expression of serum LINC00460 was positively associated with French-American-British classification and cytogenetics. Furthermore, ROC curve analyses demonstrated that serum LINC00460 could differentiate patients with AML from healthy individuals with an area under the curve of 0.8488 (95% CI, 0.7697–0.9279). The serum LINC00460 expression was also significantly decreased when the patients achieved complete remission. Kaplan-Meier analysis indicated that patients with high serum LINC00460 expression had a shorter overall survival time compared with the low serum LINC00460 expression group. Knockdown of LINC00460 inhibited viability, while inducing cell cycle arrest and apoptosis in AML cells. LINC00460 was also a decoy of microRNA (miR)-320b, which can further inhibit the expression of PBX homeobox 3 (PBX3). Collectively, the results suggested that LINC00460 may be applied as a potential diagnostic and prognostic biomarker for patients with AML. It was identified that LINC00460 may exert its effects, at least partly, via the miR-320b/PBX3 axis in AML.
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Affiliation(s)
- Qiang Zhuang
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Zhenlin Jin
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Xiangkuo Zheng
- Department of Experimental Center, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Ting Jin
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Lina Xiang
- Department of Emergency, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
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27
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Chen XT, Li ZW, Zhao X, Li ML, Hou PF, Chu SF, Zheng JN, Bai J. Role of Circular RNA in Kidney-Related Diseases. Front Pharmacol 2021; 12:615882. [PMID: 33776764 PMCID: PMC7990792 DOI: 10.3389/fphar.2021.615882] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 02/02/2021] [Indexed: 12/13/2022] Open
Abstract
The kidney is vital in maintaining fluid, electrolyte, and acid–base balance. Kidney-related diseases, which are an increasing public health issue, can happen to people of any age and at any time. Circular RNAs (circRNAs) are endogenous RNA that are produced by selective RNA splicing and are involved in progression of various diseases. Studies have shown that various kidney diseases, including renal cell carcinoma, acute kidney injury, and chronic kidney disease, are linked to circRNAs. This review outlines the characteristics and biological functions of circRNAs and discusses specific studies that provide insights into the function and potential of circRNAs for application in the diagnosis and treatment of kidney-related diseases.
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Affiliation(s)
- Xin-Tian Chen
- Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Zhong-Wei Li
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xue Zhao
- Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Min-Le Li
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ping-Fu Hou
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Su-Fang Chu
- Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Jun-Nian Zheng
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Jin Bai
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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28
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Yu R, Lu Y, Yu R, Xie J, Zhou S. Synergistic Effects of TW-37 and ABT-263 on Renal Cell Carcinoma Cells. Cancer Manag Res 2021; 13:953-963. [PMID: 33568941 PMCID: PMC7868206 DOI: 10.2147/cmar.s265788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 01/08/2021] [Indexed: 12/13/2022] Open
Abstract
Background Renal cell carcinoma (RCC) is a common urological system malignancy lack of effective therapeutic options. Upregulation of the Bcl-2 proteins was correlated with poor prognosis of RCC, suggesting that BH-3 mimetics may be a promising treatment option. ABT-263 is a BH3 mimetic that possesses anti-tumor effects. TW-37 is another inhibitor of Bcl-2 family protein with potential anti-tumor activities. However, since their effect as single agent is limited, combination treatment represents a strategy to improve the efficiency. We studied the ABT-263 in combination with TW-37 and analyzed the molecular mechanisms of action in RCC cells. Methods MTT and colony formation assays were used to measure the proliferation of RCC cells. Transwell assay was used to assay the migration and invasion of RCC cells. Cell cycle distribution and apoptosis were measured using the flow cytometry and apoptotic nucleosome assay, respectively. Western blotting was performed to measure the change of proteins. The anti-tumor effects of ABT-263, TW-37 and their combination were also evaluated in vivo. Results Cotreatment of TW-37 and ABT-263 synergistically repressed the proliferation of RCC cells. TW-37 and ABT-263 also synergistically inhibited the migration and invasion of RCC cells It was also showed that TW-37 and ABT-263 synergistically induced cell cycle arrest at the G2/M phase. Furthermore, increased apoptosis was observed after exposure to TW-37 and ABT-263. Mechanism investigation showed that TW-37 and ABT-263 synergistically induced apoptosis via the mitochondrial pathway and relied on the activation of Bax and caspases. Furthermore, ERK signaling pathway activation was detected after treated with TW-37 and ABT-263. Finally, TW-37 and ABT-263 also synergistically repressed the growth of RCC cells in xenograft mice. Conclusion In summary, our data demonstrated that combined treatment with TW-37 and ABT-263 exhibited synergistic RCC cell death and this combination may be applied as an effective therapeutic strategy against RCC.
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Affiliation(s)
- Rui Yu
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, People's Republic of China
| | - Yefen Lu
- Department of Neurology, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, People's Republic of China
| | - Ren Yu
- Department of Urology, Ningbo Urology and Nephrology Hospital, Ningbo, People's Republic of China
| | - Jianjun Xie
- Suzhou Science & Technology Town Hospital, The Affiliated Suzhou Science & Technology Town Hospital of Nanjing Medical University, Suzhou, People's Republic of China
| | - Shoujun Zhou
- Suzhou Science & Technology Town Hospital, The Affiliated Suzhou Science & Technology Town Hospital of Nanjing Medical University, Suzhou, People's Republic of China
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29
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Yu R, Yao J, Ren Y. A novel circRNA, circNUP98, a potential biomarker, acted as an oncogene via the miR-567/ PRDX3 axis in renal cell carcinoma. J Cell Mol Med 2020; 24:10177-10188. [PMID: 32729669 PMCID: PMC7520319 DOI: 10.1111/jcmm.15629] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/11/2020] [Accepted: 06/19/2020] [Indexed: 12/12/2022] Open
Abstract
In recent years, plenty of studies found that circular RNAs (circRNAs) were essential players in the initiation and progression of various cancers including the renal cell carcinoma (RCC). However, the knowledge about the circRNAs in carcinogenesis is still limited. Dysregulated expression of circNUP98 in RCC tissues was identified by the circular RNA microarray. RT‐PCR was performed to measure the expression of circNUP98 in 78 pairs of RCC tissues and adjacent normal tissues. Survival analysis was conducted to explore the association between the expression of circNUP98 and the prognosis of RCC. The function and underlying mechanisms of circSMC3 in RCC cells were investigated by RNAi, CCK‐8, Western blotting, bioinformatic analysis, ChIP assay, circRIP assay and dual luciferase reporter assay. CircNUP98 was up‐regulated in both RCC tissues and cell lines, and high expression of circNUP98 was correlated with poor prognosis of RCC patients. Silencing of circSMC3 inhibited the proliferation and promoted the apoptosis in a caspase‐dependent manner in RCC cells. Mechanistically, we revealed that silencing of circ NUP98 inhibited RCC progression by down‐regulating of PRDX3 via up‐regulation of miR‐567. Furthermore, STAT3 was identified as an inducer of circ NUP98 in RCC cells. CircNUP98 acts as an oncogene by a novel STAT3/circ NUP98/miR‐567/PRDX3 axis, which may provide a potential biomarker and therapeutic target for the treatment of RCC.
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Affiliation(s)
- Rui Yu
- Zhejiang Key Laboratory of Pathophysiology, Department of Biochemistry and Molecular Biology, Medical School, Ningbo University, Ningbo, China
| | - Jie Yao
- School of Marine Science, Ningbo University, Ningbo, China
| | - Yu Ren
- Department of Urologic Surgery, Ningbo Urology and Nephrology Hospital, Ningbo Yinzhou NO2. Hospital, Ningbo, China
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