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Wu Z, Wu M, Jiang X, Shang F, Li S, Mi Y, Geng C, Tian Y, Li Z, Zhao Z. The study on circRNA profiling uncovers the regulatory function of the hsa_circ_0059665/miR-602 pathway in breast cancer. Sci Rep 2024; 14:20555. [PMID: 39232183 DOI: 10.1038/s41598-024-71505-0] [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: 03/11/2024] [Accepted: 08/28/2024] [Indexed: 09/06/2024] Open
Abstract
Abnormal expression of circRNAs has been observed in different types of carcinomas, and they play significant roles in the biology of these cancers. Nevertheless, the clinical relevance and functional mechanisms of the majority of circRNAs implicated in breast cancer progression remain unclear. The primary objective of our investigation is to uncover new circRNAs in breast cancer and elucidate the underlying mechanisms by which they exert their effects. The circRNA expression profile data for breast cancer and RNA-sequencing data were acquired from distinct public databases. Differentially expressed circRNAs and mRNA were identified through fold change filtering. The establishment of the competing endogenous RNAs (ceRNAs) network relied on the interplay between circular RNAs, miRNAs, and mRNAs. The hub genes were identified from the protein-protein interaction (PPI) regulatory network using the CytoHubba plugin in Cytoscape. Moreover, the expression levels and prognostic value of these hub genes in the PPI network were assessed using the GEPIA and Kaplan-Meier plotter databases. Fluorescence in situ hybridization (FISH) was used to identified the expression and intracellular localization of hsa_circ_0059665 by using the tissue microarray. Transwell analysis and CCK-8 analysis were performed to assess the invasion, migration, and proliferation abilities of breast cancer cells. Additionally, we investigated the interactions between hsa_circ_0059665 and miR-602 through various methods, including FISH, RNA-binding protein immunoprecipitation (RIP), and luciferase reporter assay. Rescue experiments were conducted to determine the potential regulatory role of hsa_circ_0059665 in breast cancer progression. A total of 252 differentially expressed circRNAs were identified. Among them, 246 circRNAs were up-regulated, while 6 circRNAs were down-regulated. Based on prediction and screening of circRNA-miRNA and miRNA-mRNA binding sites, we constructed a network consisting of circRNA-miRNA-mRNA interactions. In addition, we constructed a Protein-Protein Interaction (PPI) network and identified six hub genes. Moreover, the expression levels of these six hub genes in breast cancer tissues were found to be significantly lower. Furthermore, the survival analysis results revealed a significant correlation between low expression levels of KIT, FGF2, NTRK2, CAV1, LEP and poorer prognosis in breast cancer patients. The FISH experiment results indicated that hsa_circ_0059665 exhibits significant downregulation in breast cancer, and its decreased expression is linked to poor prognosis in breast cancer patients. Functional in vitro experiments revealed that overexpression of hsa_circ_0059665 can inhibit proliferation, migration and invasion abilities of breast cancer cells. Further molecular mechanism studies showed that hsa_circ_0059665 exerts its anticancer gene role by acting as a molecular sponge for miR-602. In our study, we constructed and analyzed a circRNA-related ceRNA regulatory network and found that hsa_circ_0059665 can act as a sponge for miR-602 and inhibit the proliferation, invasion and migration of breast cancer cells.
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Affiliation(s)
- Zhenyu Wu
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, 89 Donggang Road, Shijiazhuang, Hebei, 050031, People's Republic of China
| | - Ming Wu
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, Hebei, 050011, People's Republic of China
| | - Xia Jiang
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, 89 Donggang Road, Shijiazhuang, Hebei, 050031, People's Republic of China
| | - Fangjian Shang
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, 89 Donggang Road, Shijiazhuang, Hebei, 050031, People's Republic of China
| | - Sainan Li
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Yunzhe Mi
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Cuizhi Geng
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Yanfeng Tian
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, 89 Donggang Road, Shijiazhuang, Hebei, 050031, People's Republic of China
| | - Zhongxin Li
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, 89 Donggang Road, Shijiazhuang, Hebei, 050031, People's Republic of China.
| | - Zengren Zhao
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, 89 Donggang Road, Shijiazhuang, Hebei, 050031, People's Republic of China.
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Xu Y, Gao Z, Sun X, Li J, Ozaki T, Shi D, Yu M, Zhu Y. The role of circular RNA during the urological cancer metastasis: exploring regulatory mechanisms and potential therapeutic targets. Cancer Metastasis Rev 2024; 43:1055-1074. [PMID: 38558156 DOI: 10.1007/s10555-024-10182-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 03/02/2024] [Indexed: 04/04/2024]
Abstract
Metastasis is a major contributor to treatment failure and death in urological cancers, representing an important biomedical challenge at present. Metastases form as a result of cancer cells leaving the primary site, entering the vasculature and lymphatic vessels, and colonizing clones elsewhere in the body. However, the specific regulatory mechanisms of action underlying the metastatic process of urological cancers remain incompletely elucidated. With the deepening of research, circular RNAs (circRNAs) have been found to not only play a significant role in tumor progression and prognosis but also show aberrant expression in various tumor metastases, consequently impacting tumor metastasis through multiple pathways. Therefore, circRNAs are emerging as potential tumor markers and treatment targets. This review summarizes the research progress on elucidating how circRNAs regulate the urological cancer invasion-metastasis cascade response and related processes, as well as their role in immune microenvironment remodeling and circRNA vaccines. This body of work highlights circRNA regulation as an emerging therapeutic target for urological cancers, which should motivate further specific research in this regard.
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Affiliation(s)
- Yan Xu
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Zhipeng Gao
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Xiaoyu Sun
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, 110001, China
| | - Jun Li
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Toshinori Ozaki
- Laboratory of DNA Damage Signaling, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Du Shi
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China.
| | - Meng Yu
- Department of Laboratory Animal Science, China Medical University, No. 77 Puhe Road, Shenyang, 110122, Liaoning, China.
| | - Yuyan Zhu
- Department of Urology, The First Hospital of China Medical University, Shenyang, 110001, China.
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3
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Du C, Yan Q, Wang Y, Ren L, Lu H, Han M, Wu Y, Wang Y, Ye M. Circular RNA AGAP1 Stimulates Immune Escape and Distant Metastasis in Renal Cell Carcinoma. Mol Biotechnol 2024; 66:454-466. [PMID: 37202649 DOI: 10.1007/s12033-023-00747-6] [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: 01/29/2023] [Accepted: 04/02/2023] [Indexed: 05/20/2023]
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most representative subtype of renal cancer, with a highly aggressive phenotype and extremely poor prognosis. Immune escape is one of the main reasons for ccRCC growth and metastasis, in which circular RNAs (circRNAs) play critical roles. Therefore, this research studied circAGAP1-associated mechanisms in immune escape and distant metastasis in ccRCC. circAGAP1/miR-216a-3p/MKNK2 was overexpressed or down-regulated by cell transfection. EdU assay, colony formation assay, scratch assay, Transwell assay, immunoblotting, and flow cytometry were used to evaluate cell proliferation, migration, invasion, EMT, and immune escape, respectively. Dual-luciferase reporting assay and RIP assay were used to evaluate the targeting relationship between circAGAP1/miR-216a-3p/MKNK2. Xenotransplantation in nude mice was used to evaluate the growth of ccRCC tumors in vivo. Here, circAGAP1 high expression was positively correlated with higher histological grade and distant metastasis and was a prognostic indicator for ccRCC. Depleting circAGAP1 effectively hampered the proliferative, invasive, and migratory capacities, EMT, and immune escape of ccRCC cells. Correspondingly, silencing circAGAP1 delayed tumor growth, distant metastasis, and immune escape in vivo. Mechanistically, circAGAP1 sponged the tumor suppressor miR-216a-3p, thereby preventing miR-216a-3p from inhibiting MAPK2. Collectively, our findings demonstrate that circAGAP1 exerts a tumor suppressor function through miR-216a-3p/MKNK2 during the immune escape and distant metastasis in ccRCC, and suggest that circAGAP1 may be a novel prognostic marker and therapeutic target for ccRCC.
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Affiliation(s)
- ChangGuo Du
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China
| | - QunFeng Yan
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China
| | - YaHui Wang
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China
| | - Lei Ren
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China
| | - Hao Lu
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China
| | - Ming Han
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China
| | - Yao Wu
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China
| | - YanBin Wang
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China
| | - MingBao Ye
- Department of Urology Surgery, The First People's Hospital of Xianyang, No. 10 Biyuan Road, Qindu District, Xianyang City, 712099, Shaanxi Province, China.
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Meng H, Li R, Xie Y, Mo Z, Zhai H, Zhang G, Liang G, Shi X, Zhou B. Nanoparticles Mediated circROBO1 Silencing to Inhibit Hepatocellular Carcinoma Progression by Modulating miR-130a-5p/CCNT2 Axis. Int J Nanomedicine 2023; 18:1677-1693. [PMID: 37020690 PMCID: PMC10069521 DOI: 10.2147/ijn.s399318] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/07/2023] [Indexed: 03/31/2023] Open
Abstract
Background Circular RNAs (circRNAs) are becoming vital biomarkers and therapeutic targets for malignant tumors due to their high stability and specificity in tissues. However, biological functions of circRNAs in hepatocellular carcinoma (HCC) are still not well studied. Methods Gene Expression Omnibus (GEO) database and qRT-PCR were used to evaluate expression of circROBO1 (hsa_circ_0066568) in HCC tissues and cell lines. CCK-8, colony formation, EdU staining, flow cytometry for cell cycle analysis, and xenograft model assays were performed to detect the circROBO1 function in vitro and in vivo. RNA pull-down, RNA immunoprecipitation (RIP), and Luciferase reporter assays were used to investigate the relationship among circROBO1, miR-130a-5p, and CCNT2. More importantly, we developed nanoparticles made from poly lactic-co-glycolic acid (PLGA) and polyethylene glycol (PEG) chains as the delivery system of si-circROBO1 and then applied them to HCC in vitro and in mice. Results circROBO1 was obviously upregulated in HCC tissues and cell lines, and elevated circROBO1 was closely correlated with worse prognosis for HCC patients. Functionally, knocking down circROBO1 significantly suppressed HCC cells growth in vitro and in mice. Mechanistically, circROBO1 acted as a competing endogenous RNA to downregulate miR-130a-5p, leading to CCNT2 expression upregulation. Furthermore, miR-130a-5p mimic or CCNT2 knockdown reversed the role of circROBO1 overexpression on HCC cells, which demonstrated that circROBO1 promoted HCC development via miR-130a-5p/CCNT2 axis. In addition, we developed nanoparticles loaded with si-circROBO1, named as PLGA-PEG (si-circROBO1) NPs, which significantly prevented the proliferation of HCC cells, and did not exhibit apparent toxicity to major organs in vivo. Conclusion Our findings firstly demonstrate that circROBO1 overexpression promotes HCC progression by regulating miR-130a-5p/CCNT2 axis, which may serve as an effective nanotherapeutic target for HCC treatment.
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Affiliation(s)
- Hongyu Meng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, People’s Republic of China
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Ruixi Li
- Department of Hepatobiliary and Pancreatic Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, People’s Republic of China
| | - Yuankang Xie
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, People’s Republic of China
| | - Zhaohong Mo
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Hang Zhai
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, People’s Republic of China
| | - Guangquan Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, People’s Republic of China
| | - Guohui Liang
- School of Clinical Medicine, Henan University, Kaifeng, People’s Republic of China
| | - Xianjie Shi
- Department of Hepatobiliary and Pancreatic Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, People’s Republic of China
| | - Boxuan Zhou
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, People’s Republic of China
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, People’s Republic of China
- Correspondence: Boxuan Zhou; Xianjie Shi, Email ;
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Qin S, Wang Y, Wang P, Lv Q. Molecular mechanism of circRNAs in drug resistance in renal cell carcinoma. Cancer Cell Int 2022; 22:369. [PMID: 36424596 PMCID: PMC9686082 DOI: 10.1186/s12935-022-02790-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 11/10/2022] [Indexed: 11/25/2022] Open
Abstract
Renal cell carcinoma (RCC) is one of the most common malignant tumors with a poor response to radiotherapy and chemotherapy. The advent of molecular targeted drugs has initiated great breakthroughs in the treatment of RCC. However, drug resistance to targeted drugs has become an urgent problem. Various studies across the decades have confirmed the involvement of circular RNAs (circRNAs) in multiple pathophysiological processes and its abnormal expression in many malignant tumors. This review speculated that circRNAs can provide a new solution to drug resistance in RCC and perhaps be used as essential markers for the early diagnosis and prognosis of RCC. Through the analysis and discussion of relevant recent research, this review explored the relationship of circRNAs to and their regulatory mechanisms in drug resistance in RCC. The results indicate an association between the expression of circRNAs and the development of RCC, as well as the involvement of circRNAs in drug resistance in RCC.
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Affiliation(s)
- Shuang Qin
- grid.24516.340000000123704535Department of Medical Imaging, Tongji Hospital, Tongji University School of Medicine, Xincun Road No. 389, Shanghai, 200065 China
| | - Yuting Wang
- grid.24516.340000000123704535Department of Medical Imaging, Tongji Hospital, Tongji University School of Medicine, Xincun Road No. 389, Shanghai, 200065 China
| | - Peijun Wang
- grid.24516.340000000123704535Department of Medical Imaging, Tongji Hospital, Tongji University School of Medicine, Xincun Road No. 389, Shanghai, 200065 China
| | - Qi Lv
- grid.24516.340000000123704535Department of Medical Imaging, Tongji Hospital, Tongji University School of Medicine, Xincun Road No. 389, Shanghai, 200065 China
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CircSCNN1A is a tumor suppressor in renal cell carcinoma via inducing the upregulation of MPP7 by the sponge effect on miR-421. Transpl Immunol 2022; 75:101736. [DOI: 10.1016/j.trim.2022.101736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022]
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Liu F, Qu R, Yang L, Shi G, Hao S, Hu C. Circular RNA Controls Tumor Occurrence and Development via Cell Cycle Regulation. Onco Targets Ther 2022; 15:993-1009. [PMID: 36134387 PMCID: PMC9484569 DOI: 10.2147/ott.s371629] [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: 04/23/2022] [Accepted: 08/25/2022] [Indexed: 01/09/2023] Open
Abstract
Circular RNAs (circRNAs) participate in the occurrence and development of various diseases through different mechanisms, such as by acting as a microRNA (miRNA) sponge, interacting with RNA-binding proteins, and regulating gene transcription and protein translation. For example, the abnormal expression of specific circRNAs in tumor cells can alter key regulatory factors and the cell cycle network, resulting in cell cycle disorders and the development and metastasis of tumors. Here, we summarize the mechanisms involved in the circRNA-mediated processes that lead to uncontrolled cell cycle and tumor cell proliferation. Extensive studies investigating the abnormal expression of circRNAs in different cancer types have been conducted. The unique characteristics of circRNAs and their ability to regulate the cell cycle through diverse mechanisms is extremely valuable in tumor diagnosis, treatment, and prognosis. Our review may assist in further understanding the circRNA-mediated regulation of the cell cycle in tumors and provide insights for research on circRNA-based therapeutic strategies and biological diagnosis for cancer.
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Affiliation(s)
- Fang Liu
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Rongfeng Qu
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Limin Yang
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Guang Shi
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Shuhong Hao
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Chunmei Hu
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
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circFOXO3 Induced by KLF16 Modulates Clear Cell Renal Cell Carcinoma Growth and Natural Killer Cell Cytotoxic Activity through Sponging miR-29a-3p and miR-122-5p. DISEASE MARKERS 2022; 2022:6062236. [PMID: 36072902 PMCID: PMC9444423 DOI: 10.1155/2022/6062236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/24/2022] [Accepted: 08/03/2022] [Indexed: 11/18/2022]
Abstract
Renal cell carcinoma (RCC) is one of the most common urological malignancies with high incidence and metastatic relapse. Clear cell RCC (ccRCC) comprises nearly 70% of all RCC cases and is responsible for the majority of morbidity and mortality of RCC. Due to the poor diagnosis strategy and unsatisfactory clinical intervention, ccRCC causes a huge economic burden and poor patient quality of life; therefore, novel diagnostic or therapeutic targets for ccRCC are urgently needed. This study investigated the biological role of circFOXO3 in ccRCC development, showing that circFOXO3 is highly expressed in RCC cells and tissues and inhibits the viability of ccRCC cells. circFOXO3 dysregulation regulates NK cell cytotoxicity towards RCC cells by directly sponging miR-29a-3p and miR-122-5p. Overexpression of miR-29a-3p or miR-122-5p attenuated NK cell toxicity towards RCC cells and the transcriptional factor Kruppel-Like Factor 16 (KLF16) regulates circFOXO3 expression in RCC cells. In conclusion, this study has partially elucidated the function of circFOXO3 in ccRCC development, providing potential novel therapeutic targets for ccRCC.
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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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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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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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12
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Zhang Y, Zhang X, Xu Y, Fang S, Ji Y, Lu L, Xu W, Qian H, Liang ZF. Circular RNA and Its Roles in the Occurrence, Development, Diagnosis of Cancer. Front Oncol 2022; 12:845703. [PMID: 35463362 PMCID: PMC9021756 DOI: 10.3389/fonc.2022.845703] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/14/2022] [Indexed: 12/19/2022] Open
Abstract
Circular RNAs (circRNAs) are non-coding single-stranded covalently closed circular RNA, mainly produced by reverse splicing of exons of precursor mRNAs (pre-mRNAs). The characteristics of high abundance, strong specificity, and good stability of circRNAs have been discovered. A large number of studies have reported its various functions and mechanisms in biological events, such as the occurrence and development of cancer. In this review, we focus on the classification, characterization, biogenesis, functions of circRNAs, and the latest advances in cancer research. The development of circRNAs as biomarkers in cancer diagnosis and treatment also provides new ideas for studying circRNAs research.
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Affiliation(s)
- Yue Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xinyi Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Yumeng Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Shikun Fang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ying Ji
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ling Lu
- Child Healthcare Department, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zhao Feng Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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13
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Huang L, Shi Y, Zhao YJ, Wang L, Hu WG, Zhu ZG, Zhang J. Long-Term Cardiac Disease- and Cancer-Associated Mortalities in Patients With Non-Metastatic Stomach Adenocarcinoma Receiving Resection and Chemotherapy: A Large Competing-Risk Population-Based Cohort Study. World J Oncol 2022; 13:69-83. [PMID: 35571338 PMCID: PMC9076150 DOI: 10.14740/wjon1445] [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: 01/10/2022] [Accepted: 02/21/2022] [Indexed: 12/03/2022] Open
Abstract
Background The survival of patients with non-metastatic gastric adenocarcinoma (nmGaC), who are receiving more and more frequently chemotherapy, has improved throughout the last decades, while treatment-caused cardiotoxicity remains a major concern. This study aimed to investigate competing causes of mortality and prognostic factors within a large cohort of patients with resected nmGaC, and to describe the heart-specific mortalities of patients undergoing resection and chemotherapy and of all resected patients. Methods In this population-based cohort study, data on patients diagnosed with nmGaC from 2004 through 2016, managed with resection with or without chemotherapy, followed up until the end of 2016, and surviving ≥ 1 month were retrieved from the US Surveillance, Epidemiology, and End Results-18 Program. Cumulative mortality functions were calculated. Prognostic factors for heart- and cancer-specific mortalities were evaluated using both multivariable-adjusted Fine-Gray subdistribution and cause-specific hazard functions. Results Together 21,257 patients with resected nmGaC were eligible for analysis with an accumulated follow-up of 73,711 person-years, where 10,718 (50%) also underwent chemotherapy. Mortalities were overestimated when using the Kaplan-Meier method. Heart diseases were the most common non-cancer cause of mortality. Compared with all resected patients, heart-specific mortality of those also receiving chemotherapy was lower overall and especially at older ages. In the total group of patients, the 8-year cumulative mortalities from heart diseases were 4.4% and 2.0% in resected patients and those also receiving chemotherapy, respectively; in patients ≥ 80 years, the heart disease-specific mortalities were as high as 11.1% and 6.5%, respectively. In overall patients undergoing resection, older ages, black ethnicity, and location at gastric antrum/pylorus were associated with increased heart-specific mortality, while more recent period, female sex, Asian/Pacific Islanders, invasion of serosa, and more positive lymph nodes were associated with lower heart-specific mortality; among those further receiving chemotherapy, only the associations with period of diagnosis, age, and ethnicity were significant. Associations with older ages were stronger for heart-specific mortality than for cancer-associated mortality. Conclusions Among survivors with resected nmGaC receiving chemotherapy, heart-specific mortality, the most common one among non-cancer causes of mortality, is not higher compared to overall resected patients in this observational study, suggesting that chemotherapy may be relatively safely administered to selected patients under strict indications. Age and ethnicity were major factors associated with heart-specific mortality in both overall resected patients and those further receiving chemotherapy. Overall and stratified cause-specific cumulative incidences of mortality are provided, which can be more clinically useful than the Kaplan-Meier estimates. Our study provides clinically useful evidence for tailored patient management.
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Affiliation(s)
- Lei Huang
- Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- Medical Center on Aging of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ), Heidelberg 69120, Germany
- These authors contributed equally to this work
| | - Yan Shi
- Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- These authors contributed equally to this work
| | - Ya Jie Zhao
- Medical Center on Aging of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Lei Wang
- Medical Center on Aging of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Wei Guo Hu
- Medical Center on Aging of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zheng Gang Zhu
- Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- Department of General Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jun Zhang
- Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- Department of General Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Jiao Tong University, Shanghai 200025, China
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14
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Liang Y, Gao Q, Wang H, Guo M, Arbab AAI, Nazar M, Li M, Yang Z, Karrow NA, Mao Y. Identification and Characterization of Circular RNAs in Mammary Tissue from Holstein Cows at Early Lactation and Non-Lactation. Biomolecules 2022; 12:478. [PMID: 35327670 PMCID: PMC8946036 DOI: 10.3390/biom12030478] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 02/05/2023] Open
Abstract
In this study, circular RNAs (circRNAs) from Holstein cow mammary tissues were identified and compared between early lactation and non-lactation. After analysis, 10,684 circRNAs were identified, ranging from 48 to 99,406 bp, and the average size was 882 bp. The circRNAs were mainly distributed on chromosomes 1 to 11, and 89.89% of the circRNAs belonged to sense-overlapping circRNA. The exons contained with circRNAs ranged from 1 to 47 and were concentrated from 1 to 5. Compared with the non-lactating cows, 87 circRNAs were significantly differentially expressed in the peak lactation cows. There were 68 upregulated circRNAs and 19 downregulated circRNAs. Enrichment analysis of circRNAs showed that GO analysis mainly focused on immune response, triglyceride transport, T cell receptor signaling pathway, etc. Pathway analysis mainly focused on cytokine-cytokine receptor interaction, T helper 17 cell differentiation, fatty acid biosynthesis, the JAK-STAT signaling pathway, etc. Specific primers were designed for two proximal ends of the circRNA junction sites to allow for PCR validation of four randomly selected circRNAs and carry out circRNA-miRNA interaction research. This study revealed the expression profile and characteristics of circRNAs in mammary tissue from Holstein cows at early lactation and non-lactation, thus providing rich information for the study of circRNA functions and mechanisms, as well as potential candidate miRNA genes for studying lactation in Holstein cows.
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Affiliation(s)
- Yan Liang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Qisong Gao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
| | - Haiyang Wang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
| | - Mengling Guo
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
| | - Abdelaziz Adam Idriss Arbab
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
- Biomedical Research Institute, Darfur University College, Nyala 63313, Sudan
| | - Mudasir Nazar
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
| | - Mingxun Li
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
| | - Zhangping Yang
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Niel A. Karrow
- Center for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Yongjiang Mao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, Department of Animal Breeding and Production, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; (Y.L.); (Q.G.); (H.W.); (M.G.); (A.A.I.A.); (M.N.); (M.L.); (Z.Y.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
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15
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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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16
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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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17
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Sayad A, Najafi S, Kashi AH, Hosseini SJ, Akrami SM, Taheri M, Ghafouri-Fard S. Circular RNAs in renal cell carcinoma: Functions in tumorigenesis and diagnostic and prognostic potentials. Pathol Res Pract 2021; 229:153720. [PMID: 34942510 DOI: 10.1016/j.prp.2021.153720] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/20/2021] [Accepted: 11/25/2021] [Indexed: 12/23/2022]
Abstract
Circular RNAs (circRNAs) are non-coding RNAs with closed ends which makes them resistant to degrading enzyme RNAse R. These RNA molecules show cell, tissue or organ specific expression. Regulatory functions have been reported for a number of circRNAs. Particularly, they have been found to affect cell cycle and control cell proliferation. CircRNAs are involved in physiological processes like natural organ development. Their dysregulation in high-throughput technologies have been shown in a growing number of diseases especially many types of cancers such as renal cell carcinoma (RCC). Differentially expressed circRNAs in RCC tissues compared to normal tissues may affect carcinogenesis process. Overexpressed circRNAs promote tumorigenic functions of RCC cell lines while down-regulated transcripts repress them. Both dysregulated circRNAs are correlated with clinicopathological features, prognosis and survival in RCC patients which along with their acceptable diagnostic values suggest them as potential biomarkers in diagnosis or prediction of prognosis of RCC patients. In this review, we have assessed tumorigenic or tumor-suppressing effects of circRNAs and also their diagnostic and prognostic potentials in RCC.
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Affiliation(s)
- Arezou Sayad
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sajad Najafi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Kashi
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Jalil Hosseini
- Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mohamamd Akrami
- Department of Medical Genetics, School of Medicine Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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18
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Zhou J, Wang L, Sun Q, Chen R, Zhang C, Yang P, Tan Y, Peng C, Wang T, Jin C, Ji J, Jin K, Sun Y. Hsa_circ_0001666 suppresses the progression of colorectal cancer through the miR-576-5p/PCDH10 axis. Clin Transl Med 2021; 11:e565. [PMID: 34841662 PMCID: PMC8567033 DOI: 10.1002/ctm2.565] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/18/2021] [Accepted: 08/23/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Though circular RNAs, new non-coding RNA classes have demonstrated that they have an essential role in the initiation as well as development of CRC (colorectal cancer), whereas in CRC the function and mechanism of hsa_circ_0001666 are less known. METHODS Hsa_circ_0001666 was identified by bioinformatics analysis of a circRNA microarray from the GEO database, and its expression in both CRC cell lines and tissues was analysed. A series of in vitro along with in vivo experiments were carried out for exploring the hsa_circ_0001666 functions, including transwell, wound healing, flow cytometry, colony formation, Edu, CCK-8, soft agar colony formation, tumor xenografts and lung/liver metastasis in mice. RNA pull-down, RIP (RNA immunoprecipitation), luciferase reporter assay, FISH (fluorescence in situ hybridization) and rescue experiments were used for determining the correlation among hsa_circ_0001666, miR-576-5p and PCDH10. RESULTS Hsa_circ_0001666 was downregulated in both CRC cell lines along with tumour tissues. A higher expression level of hsa_circ_0001666 indicated a better clinical prognosis in patients with CRC. Hsa_circ_0001666 knockdown significantly supported CRC cell proliferation along with invasion and inhibited cell apoptosis in vitro. Hsa_circ_0001666 knockdown accelerated the CRC growth and metastasis in vivo. Moreover, the mechanistic study showed that hsa_circ_0001666, acting as 'ceRNA' of miR-576-5p, prevented PCDH10 downregulation, as well as suppressed EMT and stemness of CRC cells, and the Wnt/β-catenin signalling pathway. Inhibiting miR-576-5p or overexpressing PCDH10 could reverse phenotypic changes caused by knocking down of hsa_circ_0001666. CONCLUSIONS Hsa_circ_0001666 suppresses CRC progression through the miR-576-5p/PCDH10 axis and may provide a new insight for the diagnosis and treatment of CRC.
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Affiliation(s)
- Jiahui Zhou
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Lu Wang
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Qingyang Sun
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Ranran Chen
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Chuan Zhang
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Peng Yang
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Yuqian Tan
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Chaofan Peng
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Tuo Wang
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Chi Jin
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Jiangzhou Ji
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Kangpeng Jin
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Yueming Sun
- The First School of Clinical MedicineNanjing Medical UniversityNanjingChina
- Department of General SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
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Ma S, Gu X, Shen L, Chen Y, Qian C, Shen X, Ju S. CircHAS2 promotes the proliferation, migration, and invasion of gastric cancer cells by regulating PPM1E mediated by hsa-miR-944. Cell Death Dis 2021; 12:863. [PMID: 34556632 PMCID: PMC8460735 DOI: 10.1038/s41419-021-04158-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/19/2021] [Accepted: 09/09/2021] [Indexed: 12/24/2022]
Abstract
Gastric cancer (GC) is considered one of the most common gastrointestinal malignancies worldwide. Circular RNAs (circRNAs) are a new class of endogenous noncoding RNAs, which can be used as biomarkers and therapeutic targets for many tumors. However, the role and potential regulatory mechanisms of circRNAs in GC remain unclear. In this study, we demonstrated that a specific circRNA, circHAS2, was upregulated in GC tissues and cells and was positively correlated with tumor metastasis. In vitro experiments demonstrated that circHAS2 knockdown or the addition of hsa-miR-944 mimics inhibited the proliferation, migration, and invasion ability of GC cells and affected the epithelial-mesenchymal transition. In addition, hsa-miR-944 interacted with protein phosphatase, Mg2+/Mn2+-dependent 1E (PPM1E), and was found to be a target gene of circHAS2. The upregulation of PPM1E reversed the effects of circHAS2 knockout on GC cells. The circHAS2/hsa-miR-944/PPM1E axis may be involved in the progression of GC; thus, circHAS2 may be a potential biomarker and therapeutic target for GC.
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Affiliation(s)
- Shuo Ma
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
- Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Xinliang Gu
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
- Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Lei Shen
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
- Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Yinhao Chen
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
- Department of Urology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
| | - Chen Qian
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
| | - Xianjuan Shen
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
| | - Shaoqing Ju
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
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Chu M, Fang Y, Jin Y. CircRNAs as promising biomarker in diagnosis of breast cancer: An updated meta-analysis. J Clin Lab Anal 2021; 35:e23934. [PMID: 34331339 PMCID: PMC8418489 DOI: 10.1002/jcla.23934] [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: 03/24/2021] [Revised: 07/18/2021] [Accepted: 07/22/2021] [Indexed: 02/03/2023] Open
Abstract
Background Circular RNAs (circRNAs) have been identified to be involved in onset and progression of multiple malignant tumors. The present study aimed to systematically evaluate the diagnostic values of circRNAs in breast cancer. Methods The PubMed, Web of Science, Embase, CNKI, and Wanfang online databases were searched for the relevant studies before December 31, 2020. Statistical analysis of the diagnostic tests was performed based on STATA 16.0, Meta‐DiSc 1.4, and RevMan 5.3 software. The threshold effect and publication bias were measured by the Spearman correlation and Deeks’ funnel plot asymmetry test, respectively. Results Twenty‐one studies from 13 articles were included in this meta‐analysis. The pooled sensitivity and specificity were 0.77 and 0.71, respectively. The pooled positive likelihood ratio (PLR), negative likelihood ratio (NLR), and overall diagnostic odds ratio (DOR) were 2.6, 0.33, and 8, respectively. Furthermore, the area under the summary receiver operator characteristic curve was 0.80. In addition, down‐regulated circRNAs achieved a diagnostic performance higher than up‐regulated circRNAs, with area under curve (AUC) values of 0.81 and 0.74, respectively. Studies based on tissue samples presented better diagnostic accuracy than those based on plasma samples, with AUC values of 0.80 and 0.67. In addition, two circRNAs, including circ_0001073 and circTADA2A‐E5/E6, showed higher diagnostic values, with AUC value of 0.990 and 0.937, respectively. According to the results of meta‐regression, the case size (p<0.05) might be the source of the heterogeneity. Conclusion CircRNAs exhibited a high diagnostic value for breast cancer and may function as potential diagnostic biomarkers for breast cancer.
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Affiliation(s)
- Mingyu Chu
- Department of Medical Genetics, Nanjing Medical University, Nanjing, China
| | - Yaqun Fang
- Department of Medical Genetics, Nanjing Medical University, Nanjing, China
| | - Yucui Jin
- Department of Medical Genetics, Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, Nanjing, China
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