1
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Fan L, Li M, Zhou X, Jia X, Tian H, Wen Q. T cell-related circRNA pairs to predict prognosis of patients with esophageal squamous cell carcinoma. Int Immunopharmacol 2024; 141:112909. [PMID: 39154531 DOI: 10.1016/j.intimp.2024.112909] [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: 05/08/2024] [Revised: 07/26/2024] [Accepted: 08/05/2024] [Indexed: 08/20/2024]
Abstract
The prognosis for esophageal squamous cell carcinoma (ESCC), a prevalent and aggressive form of cancer, remains poor despite advancements in treatment options. Addressing the gap in comprehensive prognostic information derived from circRNA expression profiles for ESCC, our study aimed to establish a linkage between circRNA expressions and ESCC prognosis. To achieve this, we first developed an optimized prognostic model named T cell-related risk score (TRRS), which integrates T cell-associated features with machine learning algorithms. In parallel, we re-analyzed existing RNA-seq datasets to redefine the expression profiles of circRNAs and mRNAs. Utilizing the TRRS as a foundational "bridge," we identified circRNAs correlated with TRRS, leading to the development of a novel circRNA pair-based prognostic model, the TCRS, which is independent of specific expression levels. Further investigations uncovered two circRNAs, circNLK(5,6,7).1 and circRC3H1(2).1, with potential functional significance. These findings underscore the utility of these risk scores as tools for predicting overall survival and identifying potential therapeutic targets for ESCC patients.
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Affiliation(s)
- Liyuan Fan
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, China.
| | - Mian Li
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xinyuan Zhou
- College of Artificial Intelligence and Big Data For Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xiao Jia
- School of Control Science and Engineering, Shandong University, Jinan, China
| | - Hui Tian
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Qiang Wen
- Department of Radiation Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan, China.
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2
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Yadav B, Yadav P, Yadav S, Pandey AK. Role of long noncoding RNAs in the regulation of alternative splicing in glioblastoma. Drug Discov Today 2024; 29:104140. [PMID: 39168403 DOI: 10.1016/j.drudis.2024.104140] [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: 04/26/2024] [Revised: 07/26/2024] [Accepted: 08/14/2024] [Indexed: 08/23/2024]
Abstract
Glioblastoma multiforme (GBM) is a highly severe primary brain tumor. Despite extensive research, effective treatments remain elusive. Long noncoding RNAs (lncRNAs) play a significant role in both cancer and normal biology. They influence alternative splicing (AS), which is crucial in cancer. Advances in lncRNA-specific microarrays and next-generation sequencing have enhanced understanding of AS. Abnormal AS contributes to cancer invasion, metastasis, apoptosis, therapeutic resistance, and tumor development, including glioma. lncRNA-mediated AS affects several cellular signaling pathways, promoting or suppressing cancer malignancy. This review discusses the lncRNAs regulating AS in glioblastoma and their mechanisms.
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Affiliation(s)
- Bhupender Yadav
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
| | - Pooja Yadav
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
| | - Sunita Yadav
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
| | - Amit Kumar Pandey
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gandhinagar, Gujarat, India.
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3
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Zhang W, Xu C, Yang Z, Zhou J, Peng W, Zhang X, Li H, Qu S, Tao K. Circular RNAs in tumor immunity and immunotherapy. Mol Cancer 2024; 23:171. [PMID: 39169354 PMCID: PMC11337656 DOI: 10.1186/s12943-024-02082-z] [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: 07/02/2024] [Accepted: 08/13/2024] [Indexed: 08/23/2024] Open
Abstract
Circular RNAs (circRNAs) are unique noncoding RNAs that have a closed and stable loop structure generated through backsplicing. Due to their conservation, stability and tissue specificity, circRNAs can potentially be used as diagnostic indicators and therapeutic targets for certain tumors. Many studies have shown that circRNAs can act as microRNA (miRNA) sponges, and engage in interactions with proteins and translation templates to regulate gene expression and signal transduction, thereby participating in the occurrence and development of a variety of malignant tumors. Immunotherapy has revolutionized the treatment of cancer. Early researches have indicated that circRNAs are involved in regulating tumor immune microenvironment and antitumor immunity. CircRNAs may have the potential to be important targets for increasing sensitivity to immunotherapy and expanding the population of patients who benefit from cancer immunotherapy. However, few studies have investigated the correlation between circRNAs and tumor immunity. In this review, we summarize the current researches on circRNAs involved in antitumor immune regulation through different mechanisms and their potential value in increasing immunotherapy efficacy with the goal of providing new targets for cancer immunotherapy.
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Affiliation(s)
- Wenjie Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- College of Life Sciences, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Chen Xu
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Zhipeng Yang
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- College of Life Sciences, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Jingshi Zhou
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Wei Peng
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xuan Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Haimin Li
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Shibin Qu
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
| | - Kaishan Tao
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
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4
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Ladurner M, Lindner AK, Rehder P, Tulchiner G. The influence of sex hormones on renal cell carcinoma. Ther Adv Med Oncol 2024; 16:17588359241269664. [PMID: 39175990 PMCID: PMC11339752 DOI: 10.1177/17588359241269664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 06/25/2024] [Indexed: 08/24/2024] Open
Abstract
Kidney cancer is a common malignancy that constitutes around 5% of all cancer cases. Males are twice as likely to acquire renal cell carcinoma (RCC) compared to females and experience a higher rate of mortality. These disparities indicate that sex hormone (SH)-dependent pathways may have an impact on the aetiology and pathophysiology of RCC. Examination of SH involvement in conventional signalling pathways, as well as genetics and genomics, especially the involvement of ribonucleic acid, reveal further insights into sex-related differences. An understanding of SHs and their influence on kidney cancer is essential to offer patients individualized medicine that would better meet their needs in terms of prevention, diagnosis and treatment. This review presents the understanding of sex-related differences in the clinical manifestation of kidney cancer patients and the underlying biological processes.
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Affiliation(s)
- Michael Ladurner
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Peter Rehder
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Gennadi Tulchiner
- Department of Urology, Medical University of Innsbruck, Anichstrasse 35, Innsbruck 6020, Austria
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5
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Wang F, Cai G, Wang Y, Zhuang Q, Cai Z, Li Y, Gao S, Li F, Zhang C, Zhao B, Liu X. Circular RNA-based neoantigen vaccine for hepatocellular carcinoma immunotherapy. MedComm (Beijing) 2024; 5:e667. [PMID: 39081513 PMCID: PMC11286538 DOI: 10.1002/mco2.667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 05/29/2024] [Accepted: 06/10/2024] [Indexed: 08/02/2024] Open
Abstract
mRNA vaccines are regarded as a highly promising avenue for next-generation cancer therapy. Nevertheless, the intricacy of production, inherent instability, and low expression persistence of linear mRNA significantly restrict their extensive utilization. Circular RNAs (circRNAs) offer a novel solution to these limitations due to their efficient protein expression ability, which can be rapidly generated in vitro without the need for extra modifications. Here, we present a novel neoantigen vaccine based on circRNA that induces a potent anti-tumor immune response by expressing hepatocellular carcinoma-specific tumor neoantigens. By cyclizing linearRNA molecules, we were able to enhance the stability of RNA vaccines and form highly stable circRNA molecules with the capacity for sustained protein expression. We confirmed that neoantigen-encoded circRNA can promote dendritic cell (DC) activation and enhance DC-induced T-cell activation in vitro, thereby enhancing T-cell killing of tumor cells. Encapsulating neoantigen-encoded circRNA within lipid nanoparticles for in vivo expression has enabled the creation of a novel circRNA vaccine platform. This platform demonstrates superior tumor treatment and prevention in various murine tumor models, eliciting a robust T-cell immune response. Our circRNA neoantigen vaccine offers new options and application prospects for neoantigen immunotherapy in solid tumors.
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Affiliation(s)
- Fei Wang
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
| | - Guang Cai
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
| | - Yingchao Wang
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
| | - Qiuyu Zhuang
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
| | - Zhixiong Cai
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
| | - Yingying Li
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
| | - Shaodong Gao
- School of Basic Medical SciencesFujian Medical UniversityFuzhouP. R. China
| | - Fang Li
- School of Basic Medical SciencesFujian Medical UniversityFuzhouP. R. China
| | - Cuilin Zhang
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
| | - Bixing Zhao
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
| | - Xiaolong Liu
- The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian ProvinceMengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouP. R. China
- Fujian Provincial Clinical Research Center for Hepatobiliary and Pancreatic TumorsFuzhouP. R. China
- Mengchao Med‐X CenterFuzhou UniversityFuzhouP. R. China
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6
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Gao X, Chen L, Zuo H, Li Q. A novel hsa_circ_0006903 circular RNA promotes tumor development and dendritic cells activated expression in infantile hemangioma. Heliyon 2024; 10:e34186. [PMID: 39082028 PMCID: PMC11284419 DOI: 10.1016/j.heliyon.2024.e34186] [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: 02/18/2023] [Revised: 07/04/2024] [Accepted: 07/04/2024] [Indexed: 08/02/2024] Open
Abstract
Background Increasing reports revealed that circular RNAs (circRNAs) and immune cells infiltration were related with tumor development. However, its role in infantile hemangioma (IH) is unknown. We will explore a novel hsa_circ_0006903-based ceRNA network and investigate the landscape of dendritic cells activated expression in IH. Material and methods Differentially expressed circRNAs (DECs) were identified from Gene Expression Omnibus (GEO) database. Regulatory networks and functional enrichment analysis were constructed. CIBERSORT was used to characterize immune cells composition. qRT-PCR was performed to detect the expression of hsa_circ_0006903 in cell lines. Then, the role of hsa_circ_0006903 in IH were validated in vitro using transwell assay. Immunofluorescence was applied to the colocalization of CD11b for dendritic cells activated as a biomarker in IH tissues. Results Using GEO database, a total of 67 DECs were screened out in IH. Hsa_circ_0006903 was the most significant DECs. Then, a novel hsa_circ_0006903 circular RNA-ceRNA network was constructed. Mechanistically, functional enrichment analysis showed that the p53 signaling pathway played the most important roles, and hsa_circ_0006903/miR-6721-5p/CACNA2D2 and hsa_circ_0006903/miR-4786-3p/ATP13A4 axis were identified. CACNA2D2, ATP13A4, and P53 were significantly downregulated in IH cell lines. We validated that dendritic cell activated was significantly overexpressed. Moreover, CD11b as a biomarker of dendritic cells activated were tested in IH tissues. Finally, hsa_circ_0006903 was significantly overexpressed, and hsa_circ_0006903 promoted infantile hemangioma cell proliferation, invasion, and migration in vitro. Conclusion Overall, our study revealed that a novel hsa_circ_0006903 promoted tumor progression, and indicated a potential biomarker CD11b of dendritic cells activated in IH.
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Affiliation(s)
- Xibo Gao
- Department of Dermatology, Tianjin Children’s Hospital, Tianjin, 300134, China
| | - Lixin Chen
- Department of Dermatology, Tianjin Children’s Hospital, Tianjin, 300134, China
| | - Hailiang Zuo
- Department of Orthopaedics, Tianjin Children’s Hospital, Tianjin, 300134, China
| | - Qinfeng Li
- Department of Dermatology, Tianjin Children’s Hospital, Tianjin, 300134, China
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7
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Geng Y, Zheng X, Zhang D, Wei S, Feng J, Wang W, Zhang L, Wu C, Hu W. CircHIF1A induces cetuximab resistance in colorectal cancer by promoting HIF1α-mediated glycometabolism alteration. Biol Direct 2024; 19:36. [PMID: 38715141 PMCID: PMC11075259 DOI: 10.1186/s13062-024-00478-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
Epidermal growth factor receptor (EGFR)-targeted therapy is an important treatment for RAS wild-type metastatic colorectal cancer (mCRC), but the resistance mechanism remains unclear. Here, the differential expression of circRNAs between Cetuximab sensitive and resistant cell lines was analyzed using whole-transcriptome sequencing. We identified that the expression of circHIF1A was significantly higher in LIM1215-R than in LIM1215. When treated with Cetuximab, downregulation of circHIF1A level weakened the proliferation and clonal formation ability of LIM1215-R, caused more cells to enter G0-G1 phase, and significantly reduced the basal respiration, ATP production, and maximal respiration, as well as the glycolytic capacity and glycolytic reserve. The response rate and prognosis of circHIF1A-positive patients were inferior to those of negative patients. Mechanistically, circHIF1A can upregulate the level of hypoxia-inducible factor 1 A (HIF1A) by competitively binding to miR-361-5p, inducing the overexpression of enzymes such as glucose transporter 1 (GLUT1) and lactate dehydrogenase A (LDHA). In a xenograft model, inhibition of circHIF1A expression increased the sensitivity to Cetuximab treatment. In conclusion, circHIF1A can promote HIF1α-mediated glycometabolism alteration to induce Cetuximab resistance in CRC. It has the potential to become a screening indicator for the Cetuximab beneficial population in mCRC and a new therapeutic target for enhancing treatment efficacy.
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Affiliation(s)
- Yiting Geng
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Xiao Zheng
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
- Jiangsu Engineering Research Center for Tumor Immunotherapy, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Dachuan Zhang
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Shanshan Wei
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Jun Feng
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Wei Wang
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Luo Zhang
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Changping Wu
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
| | - Wenwei Hu
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
- Jiangsu Engineering Research Center for Tumor Immunotherapy, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
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8
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Hu Y, Dong Z, Liu K. Unraveling the complexity of STAT3 in cancer: molecular understanding and drug discovery. J Exp Clin Cancer Res 2024; 43:23. [PMID: 38245798 PMCID: PMC10799433 DOI: 10.1186/s13046-024-02949-5] [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: 11/08/2023] [Accepted: 01/08/2024] [Indexed: 01/22/2024] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a transcriptional factor involved in almost all cancer hallmark features including tumor proliferation, metastasis, angiogenesis, immunosuppression, tumor inflammation, metabolism reprogramming, drug resistance, cancer stemness. Therefore, STAT3 has become a promising therapeutic target in a wide range of cancers. This review focuses on the up-to-date knowledge of STAT3 signaling in cancer. We summarize both the positive and negative modulators of STAT3 together with the cancer hallmarks involving activities regulated by STAT3 and highlight its extremely sophisticated regulation on immunosuppression in tumor microenvironment and metabolic reprogramming. Direct and indirect inhibitors of STAT3 in preclinical and clinical studies also have been summarized and discussed. Additionally, we highlight and propose new strategies of targeting STAT3 and STAT3-based combinations with established chemotherapy, targeted therapy, immunotherapy and combination therapy. These efforts may provide new perspectives for STAT3-based target therapy in cancer.
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Affiliation(s)
- Yamei Hu
- Tianjian Laboratory for Advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
- Medical Research Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Zigang Dong
- Tianjian Laboratory for Advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China.
- Cancer Chemoprevention International Collaboration Laboratory, Zhengzhou, Henan, China.
| | - Kangdong Liu
- Tianjian Laboratory for Advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China.
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou, Henan, China.
- Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou, Henan, China.
- Cancer Chemoprevention International Collaboration Laboratory, Zhengzhou, Henan, China.
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9
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Andrabi MQ, Kesavan Y, Ramalingam S. Non-coding RNAs as Biomarkers for Survival in Colorectal Cancer Patients. Curr Aging Sci 2024; 17:5-15. [PMID: 36733201 DOI: 10.2174/1874609816666230202101054] [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: 06/16/2022] [Revised: 11/25/2022] [Accepted: 12/19/2022] [Indexed: 02/04/2023]
Abstract
Colorectal cancer (CRC) has a high incidence and fatality rate worldwide. It ranks second concerning death worldwide. Cancer patients are diagnosed with the disease at a later stage due to the absence of early diagnostic methods, which leads to increased death. With the help of recent advancements in the fields of diagnosis and therapy, the development of novel methods using new targets could be helpful for the long-term survival of CRC patients when CRC is detected early. However, the prognosis for the advanced stage of CRC is abysmal. New biomarkers are emerging as promising alternatives since they can be utilized for early detection of CRC, are simple to use, and non-invasive. Non-coding RNAs (ncRNAs) have been seen to have an aberrant expression in the development of many malignancies, including CRC. In the past two decades, much research has been done on non-coding RNAs, which may be valuable as biomarkers and targets for antitumor therapy. Non-coding RNAs can be employed in detecting and treating CRC. Non-coding RNAs play an essential role in regulating gene expression. This article reviews ncRNAs and their expression levels in CRC patients that could be used as potential biomarkers. Various ncRNAs have been associated with CRC, such as microRNAs, long non-coding RNAs, circular RNAs, etc. The expression of these non-coding RNAs may provide insights into the stages of cancer and the prognosis of cancer patients and therefore proper precautionary measures can be taken to decrease cancer-related deaths.
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Affiliation(s)
- Mohammad Qasim Andrabi
- Department of Genetic Engineering, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Yasodha Kesavan
- Department of Biotechnology, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Satish Ramalingam
- Department of Genetic Engineering, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
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10
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Yang Q, Tian H, Guo Z, Ma Z, Wang G. The role of noncoding RNAs in the tumor microenvironment of hepatocellular carcinoma. Acta Biochim Biophys Sin (Shanghai) 2023; 55:1697-1706. [PMID: 37867435 PMCID: PMC10686793 DOI: 10.3724/abbs.2023231] [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: 04/23/2023] [Accepted: 07/11/2023] [Indexed: 10/24/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the leading fatal malignancy worldwide. The tumor microenvironment (TME) can affect the survival, proliferation, migration, and even dormancy of cancer cells. Hypoxia is an important component of the TME, and hypoxia-inducible factor-1α (HIF-1α) is the most important transcriptional regulator. Noncoding RNAs (ncRNAs), including microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs), comprise a large part of the human transcriptome and play an important role in regulating the tumorigenesis of HCC. This review discusses the role of ncRNAs in hepatocarcinogenesis, epithelial-mesenchymal transition (EMT), and angiogenesis in a hypoxic microenvironment, as well as the interactions between ncRNAs and key components of the TME. It further discusses their use as biomarkers and the potential clinical value of drugs, as well as the challenges faced in the future.
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Affiliation(s)
- Qianqian Yang
- Laboratory for Noncoding RNA and CancerSchool of Life SciencesShanghai UniversityShanghai200444China
| | - Hui Tian
- Department of GeriatricsZhongshan HospitalFudan UniversityShanghai200032China
| | - Ziyi Guo
- Laboratory for Noncoding RNA and CancerSchool of Life SciencesShanghai UniversityShanghai200444China
| | - Zhongliang Ma
- Laboratory for Noncoding RNA and CancerSchool of Life SciencesShanghai UniversityShanghai200444China
| | - Guangzhi Wang
- School of Medical ImagingWeifang Medical UniversityWeifang261053China
- Department of Medical Imaging CenterAffiliated Hospital of Weifang Medical UniversityWeifang261053China
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11
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Weidle UH, Nopora A. Hepatocellular Carcinoma: Up-regulated Circular RNAs Which Mediate Efficacy in Preclinical In Vivo Models. Cancer Genomics Proteomics 2023; 20:500-521. [PMID: 37889063 PMCID: PMC10614070 DOI: 10.21873/cgp.20401] [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: 07/03/2023] [Revised: 08/22/2023] [Accepted: 08/30/2023] [Indexed: 10/28/2023] Open
Abstract
Hepatocellular carcinoma (HCC) ranges as number two with respect to the incidence of tumors and is associated with a dismal prognosis. The therapeutic efficacy of approved multi-tyrosine kinase inhibitors and checkpoint inhibitors is modest. Therefore, the identification of new therapeutic targets and entities is of paramount importance. We searched the literature for up-regulated circular RNAs (circRNAs) which mediate efficacy in preclinical in vivo models of HCC. Our search resulted in 14 circRNAs which up-regulate plasma membrane transmembrane receptors, while 5 circRNAs induced secreted proteins. Two circRNAs facilitated replication of Hepatitis B or C viruses. Three circRNAs up-regulated high mobility group proteins. Six circRNAs regulated components of the ubiquitin system. Seven circRNAs induced GTPases of the family of ras-associated binding proteins (RABs). Three circRNAs induced redox-related proteins, eight of them up-regulated metabolic enzymes and nine circRNAs induced signaling-related proteins. The identified circRNAs up-regulate the corresponding targets by sponging microRNAs. Identified circRNAs and their targets have to be validated by standard criteria of preclinical drug development. Identified targets can potentially be inhibited by small molecules or antibody-based moieties and circRNAs can be inhibited by small-interfering RNAs (siRNAs) or short hairpin RNAs (shRNAs) for therapeutic purposes.
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Affiliation(s)
- Ulrich H Weidle
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | - Adam Nopora
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
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12
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Wenhao R, Yali C, Shaoming L, Jingjing Z, Ling G, Keqian Z. circAP1M2 activates ATG9A-associated autophagy by inhibiting miR-1249-3p to promote cisplatin resistance in oral squamous cell carcinoma. J Cell Physiol 2023; 238:2612-2624. [PMID: 37661341 DOI: 10.1002/jcp.31116] [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: 03/27/2023] [Revised: 08/14/2023] [Accepted: 08/18/2023] [Indexed: 09/05/2023]
Abstract
Cisplatin (CDDP) is the first-line chemotherapeutic agent for oral squamous cell carcinoma (OSCC). Susceptibility to drug resistance during treatment is a significant challenge in enhancing the therapeutic efficacy of OSCC. Autophagy is an essential element to guarantee the cancer cells' survival under chemo-stress conditions. We established a cisplatin-resistant OSCC cell line (CAL27/CDDP) and showed that circAP1M2 is a remarkably upregulated circular RNA in OSCC. Knockdown of circAP1M2 contributes to reversing cisplatin chemoresistance in vivo, while enhanced autophagic activity in cisplatin-resistant OSCC cells contributes to chemoresistance. Mechanistically, we showed that circAP1M2 induces autophagy-associated cisplatin resistance via the miR-1249-3p-ATG9A axis in OSCC cells. This study provides insights into the specific influence of a newly identified circular RNA circAP1M2 in OSCC regarding drug abuse and the treatment of a broad range of cancers that can benefit from cisplatin.
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Affiliation(s)
- Ren Wenhao
- Department of Oral and Maxillofacial Reconstruction, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Cheng Yali
- Department of Stomatology, Huaian Hospital of Huaian City, Huaian, Jiangsu, China
| | - Li Shaoming
- Department of Oral and Maxillofacial Reconstruction, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- School of Stomatology of Qingdao University, Qingdao, Shandong, China
| | - Zheng Jingjing
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Gao Ling
- Department of Oral and Maxillofacial Reconstruction, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Key Lab of Oral Clinical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Zhi Keqian
- Department of Oral and Maxillofacial Reconstruction, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Key Lab of Oral Clinical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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13
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Liu T, Long K, Zhu Z, Song Y, Chen C, Xu G, Ke X. Roles of circRNAs in regulating the tumor microenvironment. Med Oncol 2023; 40:329. [PMID: 37819576 PMCID: PMC10567871 DOI: 10.1007/s12032-023-02194-4] [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: 08/07/2023] [Accepted: 09/11/2023] [Indexed: 10/13/2023]
Abstract
CircRNAs, a type of non-coding RNA widely present in eukaryotic cells, have emerged as a prominent focus in tumor research. However, the functions of most circRNAs remain largely unexplored. Known circRNAs exert their regulatory roles through various mechanisms, including acting as microRNA sponges, binding to RNA-binding proteins, and functioning as transcription factors to modulate protein translation and coding. Tumor growth is not solely driven by gene mutations but also influenced by diverse constituent cells and growth factors within the tumor microenvironment (TME). As crucial regulators within the TME, circRNAs are involved in governing tumor growth and metastasis. This review highlights the role of circRNAs in regulating angiogenesis, matrix remodeling, and immunosuppression within the TME. Additionally, we discuss current research on hypoxia-induced circRNAs production and commensal microorganisms' impact on the TME to elucidate how circRNAs influence tumor growth while emphasizing the significance of modulating the TME.
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Affiliation(s)
- Tao Liu
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, Guizhou, China
| | - Kaijun Long
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, Guizhou, China
| | - Zhengfeng Zhu
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, Guizhou, China
| | - Yongxiang Song
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, Guizhou, China
| | - Cheng Chen
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, Guizhou, China.
| | - Gang Xu
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, Guizhou, China.
| | - Xixian Ke
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, Guizhou, China.
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14
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Li J, Song Y, Cai H, Zhou B, Ma J. Roles of circRNA dysregulation in esophageal squamous cell carcinoma tumor microenvironment. Front Oncol 2023; 13:1153207. [PMID: 37384299 PMCID: PMC10299836 DOI: 10.3389/fonc.2023.1153207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 05/30/2023] [Indexed: 06/30/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is the most prevalent histological esophageal cancer characterized by advanced diagnosis, metastasis, resistance to treatment, and frequent recurrence. In recent years, numerous human disorders such as ESCC, have been linked to abnormal expression of circular RNAs (circRNAs), suggesting that they are fundamental to the intricate system of gene regulation that governs ESCC formation. The tumor microenvironment (TME), referring to the area surrounding the tumor cells, is composed of multiple components, including stromal cells, immune cells, the vascular system, extracellular matrix (ECM), and numerous signaling molecules. In this review, we briefly described the biological purposes and mechanisms of aberrant circRNA expression in the TME of ESCC, including the immune microenvironment, angiogenesis, epithelial-to-mesenchymal transition, hypoxia, metabolism, and radiotherapy resistance. As in-depth research into the processes of circRNAs in the TME of ESCC continues, circRNAs are promising therapeutic targets or delivery systems for cancer therapy and diagnostic and prognostic indicators for ESCC.
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Affiliation(s)
- Jingyi Li
- Department of Clinical Laboratory, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yuxia Song
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Huihong Cai
- Department of Clinical Laboratory, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Bo Zhou
- Medical Research Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jun Ma
- Department of Clinical Laboratory, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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15
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Li M, Wang Y, Wu P, Zhang S, Gong Z, Liao Q, Guo C, Wang F, Li Y, Zeng Z, Yan Q, Xiong W. Application prospect of circular RNA-based neoantigen vaccine in tumor immunotherapy. Cancer Lett 2023; 563:216190. [PMID: 37062328 DOI: 10.1016/j.canlet.2023.216190] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 04/18/2023]
Abstract
Neoantigen is a protein produced by mutant gene, which is only expressed in tumor cells. It is an ideal target for therapeutic tumor vaccines. Although synthetic long peptide (SLP)-based neoantigen vaccine, DNA-based neoantigen vaccine, and mRNA-based neoantigen vaccine are all in the development stage, they have some inherent shortcomings. Therefore, researchers turned their attention to a new type of "non-coding RNA (ncRNA)", circular RNA (circRNA), for potential better choice. Because of its unique high stability and protein-coding capacity, circRNA is a promising target in the field of neoantigen vaccine. In this paper, we reviewed the feasibility of circRNA encoding neoantigens, summarized the construction process, explained the mechanism of circRNA vaccine in vitro, and discussed the advantages and disadvantages of circRNA vaccine and possible combination with other immunotherapies.
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Affiliation(s)
- Mohan Li
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410013, China; Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China; Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
| | - Yian Wang
- Key Laboratory of Translational Cancer Stem Cell Research, Department of Pathophysiology, Hunan Normal University School of Medicine, Changsha, Hunan, China
| | - Pan Wu
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Shanshan Zhang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
| | - Zhaojian Gong
- Department of Oral and Maxillofacial Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Qianjin Liao
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410013, China
| | - Can Guo
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Fuyan Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Yong Li
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410013, China; Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Qijia Yan
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410013, China; Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China.
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16
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Wu C, Cao X, Xu J, Wang L, Huang J, Wen J, Wang X, Sang X, Zhu W, Yao Y, Zhou C, Huang F, Wang M. Hsa_circ_0073453 modulates IL-8 secretion by GC-MSCs to promote gastric cancer progression by sponging miR-146a-5p. Int Immunopharmacol 2023; 119:110121. [PMID: 37044033 DOI: 10.1016/j.intimp.2023.110121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/13/2023] [Accepted: 03/27/2023] [Indexed: 04/14/2023]
Abstract
Gastric cancer associated mesenchymal stem cells (GC-MSCs) have been demonstrated to promote gastric cancer progression in a paracrine manner. IL-8 is highly secreted by GC-MSCs and is crucial for their oncogenic function. However, the mechanism underlying the modulation of IL-8 secretion by GC-MSCs has not been well elucidated. In this study, Shbio-human ceRNA array was used to identify dysregulated mRNAs and circRNAs between GC-MSCs and bone marrow derived mesenchymal stem cells (BM-MSCs). IL-8 was validated to be a critical paracrine cytokine for GC-MSCs promoting migration and invasion of gastric cancer cells. circ_0073453 was identified as a novel GC-MSC-derived circRNA which acted as a sponge of miR-146a-5p, thus increasing IL-8 expression and secretion to promote gastric cancer cell metastasis. Furthermore, circ_0073453 modulated IL-8 secretion by GC-MSCs to enhance gastric cancer cells PD-L1 expression to resist cytotoxic CD8+ T cell-killing. circ_0073453/miR-146a-5p/IL-8 axis was deregulated in gastric cancer tissues and associated with prognosis depending on MSC abundance in cancer tissues. Taken together, our findings suggest that circ_0073453/miR-146a-5p/IL-8 axis is critical for GC-MSCs promoting gastric cancer progression. Hence, hsa_circ_0073453 may be a potential therapeutic target for gastric cancer.
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Affiliation(s)
- Chen Wu
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Xiaoli Cao
- Department of Laboratory Medicine, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu Province, PR China
| | - Juan Xu
- Department of Laboratory Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, Jiangsu Province, PR China
| | - Lin Wang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Jiaying Huang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Jing Wen
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Xiang Wang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Xiao Sang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Wei Zhu
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Yongliang Yao
- Department of Clinical Laboratory, Affiliated Kunshan Hospital of Jiangsu University, Suzhou, Jiangsu Province, PR China
| | - Chenglin Zhou
- Department of Laboratory Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, Jiangsu Province, PR China
| | - Feng Huang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China; Department of Clinical Laboratory, Affiliated Kunshan Hospital of Jiangsu University, Suzhou, Jiangsu Province, PR China; Department of Clinical Laboratory, Maternal and Child Health Care Hospital of Kunshan, Suzhou, Jiangsu Province, PR China.
| | - Mei Wang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, PR China.
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17
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Wu R, Tang S, Wang Q, Kong P, Liu F. Hsa_circ_0003602 Contributes to the Progression of Colorectal Cancer by Mediating the miR-149-5p/SLC38A1 Axis. Gut Liver 2023; 17:267-279. [PMID: 36148577 PMCID: PMC10018293 DOI: 10.5009/gnl210542] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/27/2022] [Accepted: 03/02/2022] [Indexed: 11/04/2022] Open
Abstract
Background/Aims We aimed to investigate the role and working mechanism of Homo sapiens circular RNA_0003602 (hsa_circ_0003602) in colorectal cancer (CRC) development. Methods The expression of circ_0003602, miR-149-5p, and solute carrier family 38 member 1 (SLC38A1) was detected by quantitative real-time polymerase chain reaction. RNase R assays were conducted to determine the characteristics of circ_0003602. CCK-8 assays, flow cytometry analysis, transwell invasion assays, wound healing assays and tube formation assays were employed to evaluate cell viability, apoptosis, invasion, migration, and angiogenesis. All protein levels were examined by Western blot or immunohistochemistry assay. The glutamine metabolism was monitored by corresponding glutamine, α-ketoglutarate and glutamate assay kits. Dual-luciferase reporter assay was utilized to confirm the targeted combination between miR-149-5p and circ_0003602 or SLC38A1. A xenograft tumor model was established to analyze the role of circ_0003602 in CRC tumor growth in vivo. Results Circ_0003602 was upregulated in CRC tissues and cell lines. Circ_0003602 silencing suppressed CRC cell viability, migration, invasion, angiogenesis, and glutaminolysis; induced cell apoptosis in vitro; and blocked tumor growth in vivo. Moreover, circ_0003602 directly interacted with miR-149-5p to negatively regulate its expression, and circ_0003602 knockdown suppressed the malignant behaviors of CRC cells largely by upregulating miR-149-5p. MiR-149-5p directly bound to the 3' untranslated region of SLC38A1 to induce its degradation, and miR-149-5p overexpression reduced the malignant potential of CRC cells largely by downregulating SLC38A1. Circ_0003602 positively regulated SLC38A1 expression by sponging miR-149-5p in CRC cells. Conclusions Circ_0003602 knockdown impedes CRC development by targeting the miR-149-5p/SLC38A1 axis, which provides a novel theoretical basis and new insights for CRC treatment.
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Affiliation(s)
- Rong Wu
- Clinical Medicine College, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shiyu Tang
- Department of Clinical Medicine, North Sichuan Medical College, Nanchong, China
| | - Qiuxiao Wang
- Department of Clinical Medicine of Combination of Chinese and Western Medicine, North Sichuan Medical College, Nanchong, China
| | - Pengfei Kong
- Division of Anorectal, Department of Integrated Traditional Chinese and Western Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Fang Liu
- Department of Clinical Medicine of Combination of Chinese and Western Medicine, North Sichuan Medical College, Nanchong, China
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18
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Yang M, Mo Y, Ren D, Liu S, Zeng Z, Xiong W. Transfer RNA-derived small RNAs in tumor microenvironment. Mol Cancer 2023; 22:32. [PMID: 36797764 PMCID: PMC9933334 DOI: 10.1186/s12943-023-01742-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 02/06/2023] [Indexed: 02/18/2023] Open
Abstract
Transfer RNAs (tRNAs) are a class of non-coding RNAs responsible for amino acid translocation during protein synthesis and are ubiquitously found in organisms. With certain modifications and under specific conditions, tRNAs can be sheared and fragmented into small non-coding RNAs, also known as tRNA-derived small RNAs (tDRs). With the development of high-throughput sequencing technologies and bioinformatic strategies, more and more tDRs have been identified and their functions in organisms have been characterized. tRNA and it derived tDRs, have been shown to be essential not only for transcription and translation, but also for regulating cell proliferation, apoptosis, metastasis, and immunity. Aberrant expression of tDRs is associated with a wide range of human diseases, especially with tumorigenesis and tumor progression. The tumor microenvironment (TME) is a complex ecosystem consisting of various cellular and cell-free components that are mutually compatible with the tumor. It has been shown that tDRs regulate the TME by regulating cancer stem cells, immunity, energy metabolism, epithelial mesenchymal transition, and extracellular matrix remodeling, playing a pro-tumor or tumor suppressor role. In this review, the biogenesis, classification, and function of tDRs, as well as their effects on the TME and the clinical application prospects will be summarized and discussed based on up to date available knowledge.
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Affiliation(s)
- Mei Yang
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Yongzhen Mo
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Daixi Ren
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Shun Liu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.
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19
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Kumar P. miRNA dysregulation in traumatic brain injury and epilepsy: a systematic review to identify putative biomarkers for post-traumatic epilepsy. Metab Brain Dis 2023; 38:749-765. [PMID: 36715879 DOI: 10.1007/s11011-023-01172-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 01/18/2023] [Indexed: 01/31/2023]
Abstract
Traumatic brain injury (TBI) leads to post-traumatic epilepsy (PTE); hence, both TBI and PTE share various similar molecular mechanisms. MicroRNA (miRNA) is a small noncoding RNA that acts as a gene-silencing molecule. Notably, the dysregulation of miRNAs in various neurological diseases, including TBI and epilepsy, has been reported in several studies. However, studies on commonly dysregulated miRNAs and the regulation of shared pathways in both TBI and epilepsy that can identify potential biomarkers of PTE are still lacking. This systematic review covers the peer-review publications of TBI and database studies of epilepsy-dysregulated miRNAs of clinical studies. For TBI, 290 research articles were identified after screening, and 12 provided data for dysregulated miRNAs in humans. The compiled data suggest that 85 and 222 miRNAs are consecutively dysregulated in TBI and epilepsy. In both, 10 miRNAs were found to be commonly dysregulated, implying that they are potentially dysregulated miRNAs for PTE. Furthermore, the targets and involvement of each putative miRNA in different pathways were identified and evaluated. Additionally, clusters of predicted miRNAs were analyzed. Each miRNA's regulatory role was linked with apoptosis, inflammation, and cell cycle regulation pathways. Hence, these findings provide insight for future diagnostic biomarkers.
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Affiliation(s)
- Prince Kumar
- Department of Central Sophisticated Instrumentation Cell, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
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20
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Han X, Tian R, Wang C, Li Y, Song X. CircRNAs: Roles in regulating head and neck squamous cell carcinoma. Front Oncol 2022; 12:1026073. [PMID: 36483049 PMCID: PMC9723173 DOI: 10.3389/fonc.2022.1026073] [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: 08/23/2022] [Accepted: 10/31/2022] [Indexed: 09/15/2023] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC), the most common head and neck malignant tumor, with only monotherapy, is characterized by poor prognosis, and low 5-year survival rate. Due to the lack of therapeutic targets, the targeted drugs for HNSCC are rare. Therefore, exploring the regulation mechanism of HNSCC and identifying effective therapeutic targets will be beneficial to its treatment of. Circular RNA (CircRNA) is a class of RNA molecules with a circular structure, which is widely expressed in human body. CircRNAs regulate gene expression by exerting the function as a miRNA sponge, thereby mediating the occurrence and development of HNSCC cell proliferation, apoptosis, migration, invasion, and other processes. In addition, circRNAs are also involved in the regulation of tumor sensitivity to chemical drugs and other biological functions. In this review, we systematically listed the functions of circRNAs and explored the regulatory mechanisms of circRNAs in HNSCC from the aspects of tumor growth, cell death, angiogenesis, tumor invasion and metastasis, tumor stem cell regulation, tumor drug resistance, immune escape, and tumor microenvironment. It will assist us in discovering new diagnostic markers and therapeutic targets, while encourage new ideas for the diagnosis and treatment of HNSCC.
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Affiliation(s)
- Xiao Han
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, Shandong, China
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai, Shandong, China
| | - Ruxian Tian
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, Shandong, China
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai, Shandong, China
| | - Cai Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, Shandong, China
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai, Shandong, China
- School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Yumei Li
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, Shandong, China
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai, Shandong, China
| | - Xicheng Song
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, Shandong, China
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai, Shandong, China
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21
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Ju L, Yao M, Lu R, Cao Y, Wang H, Yuan L, Xiao F, Shao J, Cai W, Chen L, Bian Z. Circular RNA hsa_circ_0051040 Promotes Hepatocellular Carcinoma Progression by Sponging miR-569 and Regulating ITGAV Expression. Cells 2022; 11:cells11223571. [PMID: 36429000 PMCID: PMC9688127 DOI: 10.3390/cells11223571] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/26/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
Accumulating evidence has demonstrated the roles of circular RNAs (circRNAs) in hepatocellular carcinoma (HCC); however, their roles in HCC need to be further studied. Through high-throughput human circRNA microarray analysis of HCC and adjacent normal tissues, we identified hsa_circ_0051040 as a novel candidate circRNA for the diagnosis and treatment of HCC. In this study, we found that hsa_circ_0051040 was overexpressed in HCC tissues and cell lines and that its expression was correlated with poor prognosis. Knockdown of hsa_circ_0051040 inhibited the migration, invasion, and proliferation of HCC cells in vitro and in vivo, whereas overexpression of hsa_circ_0051040 had the opposite effects. Moreover, our data demonstrated that hsa_circ_0051040 acted as a sponge for miR-569 to regulate ITGAV expression and induce EMT progression. Our findings indicated that hsa_circ_0051040 promotes HCC development and progression by sponging miR-569 to increase ITGAV expression. Thus, hsa_circ_0051040 is a good candidate as a therapeutic target.
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Affiliation(s)
- Linling Ju
- Medical School of Nantong University, Nantong University, Nantong 226001, China
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
| | - Min Yao
- Medical School of Nantong University, Nantong University, Nantong 226001, China
| | - Rujian Lu
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
| | - Yali Cao
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
| | - Huixuan Wang
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
| | - Liuxia Yuan
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
| | - Feng Xiao
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
| | - Jianguo Shao
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
| | - Weihua Cai
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
| | - Lin Chen
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
- Correspondence: (L.C.); (Z.B.)
| | - Zhaolian Bian
- Nantong Institute of Liver Disease, Affiliated Nantong Hospital 3 of Nantong University, Nantong Third People’s Hospital, Nantong University, Nantong 226006, China
- Correspondence: (L.C.); (Z.B.)
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22
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Yu W, Liu R, Miao Z, Zhang L, Sheyhidin I, Ainiwaer J. The diagnostic significance of blood-derived circRNAs in NSCLC: Systematic review and meta-analysis. Front Oncol 2022; 12:987704. [PMID: 36353543 PMCID: PMC9638072 DOI: 10.3389/fonc.2022.987704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/03/2022] [Indexed: 12/24/2022] Open
Abstract
Background Using blood-derived circular RNAs (circRNAs) may be an efficient tool for noninvasive fluid biopsy in diagnosing non-small cell lung cancer (NSCLC). However, no relevant systemic meta-analysis has been conducted so far to support the diagnostic value of using blood-derived circRNAs in NSCLC clinically. The aim of this study is to clarify the issue through a meta-analysis. Methods A systematic search strategy was used to search relevant literature in the databases of PubMed, Web of Science, and Cochrane Library from 2017 to 2022. The relationship between the diagnostic accuracy of circRNAs and NSCLC was analyzed. For the purpose of evaluating the quality of the literature, Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) was used. Statistical analyses were assessed using Stata software (version 17.0) and META-DISC (version 1.4). Results The meta-analysis included 1,093 patients with NSCLC and 959 controls. Results are as follows: pooled sensitivity, 0.78 (95% CI = 0.71–0.83, I2 = 71.86); pooled specificity, 0.76 (95% CI = 0.70–0.82, I2 = 70.12); pooled positive likelihood ratio (PLR), 3.3 (95% CI = 2.6–4.2, I2 = 37.56); pooled negative likelihood ratio (NLR), 0.29 (95% CI = 0.23–0.37, I2 = 64.67); diagnostic odds ratio (DOR), 11.42 (95% CI = 7.88–16.56, I2 = 99.05); area under the receiver operating characteristic curve (AUC), 0.84 (95% CI = 0.80–0.87). Based on the subgroup analysis, it appears that the heterogeneity is primarily caused by the NSCLC subgroup. Conclusion circRNAs are highly useful diagnostic biomarkers for NSCLC in China. Further prospective studies on the diagnostic value of circRNAs should be conducted in multiple countries. Systematic review registration https://www.crd.york.ac.uk/prospero/, identifier CRD42022323804.
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Affiliation(s)
- Weijie Yu
- Department of Cardio-Thoracic Surgery, The Fourth Affiliated Hospital of Xinjiang Medical University, Xinjiang, China
| | - Ruixue Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China
| | - Zhoulin Miao
- Radiology Department, Qingdao Municipal Hospital, Qingdao, Shandong, China
| | - Liwei Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China
| | - Ilyar Sheyhidin
- Department of Thoracic Surgery, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China
| | - Julaiti Ainiwaer
- Department of Thoracic Surgery, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, China
- *Correspondence: Julaiti Ainiwaer,
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23
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Xing Y, Liang X, Lv X, Cheng Y, Du J, Liu C, Yang Y. New insights into the role of circular RNAs in ovarian cancer. Pathol Res Pract 2022; 238:154073. [PMID: 36007396 DOI: 10.1016/j.prp.2022.154073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/31/2022] [Accepted: 08/10/2022] [Indexed: 10/15/2022]
Abstract
Ovarian cancer (OC) is one of the most aggressive tumors in women and has a poor prognosis and the highest mortality rate. Circular RNAs (circRNAs) are a type of endogenous non-coding RNAs that have recently attracted interest in cancer research. Increasing evidence has demonstrated that circRNAs play an oncogenic or suppressive role in tumorigenesis and progression, and show tissue- or developmental-stage-specific expression. Due to high stability, conservation, abundance, and specificity, circRNAs are considered promising biomarkers for the diagnosis and prognosis of cancer. Herein, we have summarized the expression profiles of circRNAs in OC tissues, serums, and cell lines. Moreover, we discuss how circRNAs participate in the regulation of multiple biological processes in OC, including cell proliferation, apoptosis, migration, invasion, autophagy, epithelial-to-mesenchymal transition, glucose metabolism, angiogenesis, immune response, and chemotherapy resistance, by sponging microRNAs and interacting with proteins.
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Affiliation(s)
- Yijuan Xing
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000 Gansu, China; Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Key Laboratory of Gynecologic Oncology Gansu Province, Lanzhou 730000, Gansu, China
| | - Xiaolei Liang
- Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Key Laboratory of Gynecologic Oncology Gansu Province, Lanzhou 730000, Gansu, China; Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Lanzhou 730000 Gansu, China
| | - Xiao Lv
- Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Key Laboratory of Gynecologic Oncology Gansu Province, Lanzhou 730000, Gansu, China; Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Lanzhou 730000 Gansu, China
| | - Yuemei Cheng
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000 Gansu, China; Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Key Laboratory of Gynecologic Oncology Gansu Province, Lanzhou 730000, Gansu, China
| | - Junhong Du
- The First Clinical Medical College of Lanzhou University, Lanzhou 730000 Gansu, China; Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Key Laboratory of Gynecologic Oncology Gansu Province, Lanzhou 730000, Gansu, China
| | - Chang Liu
- Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Key Laboratory of Gynecologic Oncology Gansu Province, Lanzhou 730000, Gansu, China; Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Lanzhou 730000 Gansu, China
| | - Yongxiu Yang
- Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Key Laboratory of Gynecologic Oncology Gansu Province, Lanzhou 730000, Gansu, China; Department of Obstetrics and Gynecology, First Hospital of Lanzhou University, Lanzhou 730000 Gansu, China.
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24
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Wang P, Wang T, Dong L, Xu Z, Guo S, Chang C. Circular RNA circ_0079593 facilitates glioma development via modulating miR-324-5p/XBP1 axis. Metab Brain Dis 2022; 37:2389-2403. [PMID: 35793013 DOI: 10.1007/s11011-022-01040-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/17/2022] [Indexed: 10/17/2022]
Abstract
Glioma is a common brain tumor with high mortality. Circular RNAs (circRNAs) play crucial roles in tumor occurrence and development. However, the function and molecular basis of circ_0079593 in glioma remain unknown. Quantitative real-time PCR (qPCR) and Western blot were used for expression determination of circ_0079593, microRNA-324-5p (miR-324-5p) and X-box binding protein 1 (XBP1). Cell Counting Kit-8 (CCK-8), colony formation, flow cytometry, transwell assays, and tube formation assay were employed to evaluate cell functions. Glycolysis was determined via detecting glucose consumption, lactate production and ATP level. The binding relationship between miR-324-5p and circ_0079593 or XBP1 was validated by dual-luciferase reporter assay and RNA Immunoprecipitation (RIP) assay. Besides, xenograft assay was applied to test tumor growth in vivo. Circ_0079593 and XBP1 levels were elevated, while miR-324-5p level was declined in glioma. Silencing of circ_0079593 restrained proliferation, mobility, angiogenesis and glycolysis and induced apoptosis in glioma cells. Circ_0079593 accelerated glioma progression via sequestering miR-324-5p, one of the targets of circ_0079593. XBP1 was a target gene of miR-324-5p, and miR-324-5p alleviated the malignant growth of glioma by repressing XBP1. Furthermore, silence of circ_0079593 hindered tumor growth in vivo. Circ_0079593 contributed to the malignant evolution of glioma via modulating miR-324-5p and downstream XBP1 gene, suggesting that circ_0079593 might be a promising therapeutic target for glioma. Circ_0079593 was boosted in glioma. Circ_0079593 depletion restrained glioma progression. Circ_0079593 triggered glioma development via miR-324-5p/XBP1 axis. Circ_0079593 silence suppressed glioma tumorigenesis in vivo.
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Affiliation(s)
- Pengcheng Wang
- Department of Neurosurgery, Weifang People's Hospital, No 151 Guangwen Street, Kuiwen district, Weifang, 261000, China
| | - Tong Wang
- Department of Neurosurgery, Weifang People's Hospital, No 151 Guangwen Street, Kuiwen district, Weifang, 261000, China
| | - Lei Dong
- Department of Neurosurgery, Weifang People's Hospital, No 151 Guangwen Street, Kuiwen district, Weifang, 261000, China
| | - Zhenkuan Xu
- Department of Neurosurgery, Second Hospital of Shandong University, Jinan, China
| | - Shouzhong Guo
- Department of Neurosurgery, Linyi People's Hospital, Linyi, China
| | - Chengyue Chang
- Department of Neurosurgery, Weifang People's Hospital, No 151 Guangwen Street, Kuiwen district, Weifang, 261000, China.
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25
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Lin H, Long F, Zhang X, Wang P, Wang T. Upregulation of circ_0008812 and circ_0001583 predicts poor prognosis and promotes breast cancer proliferation. Front Mol Biosci 2022; 9:1017036. [PMID: 36200070 PMCID: PMC9527282 DOI: 10.3389/fmolb.2022.1017036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Accumulating evidence suggests that circular RNAs (circRNAs) are highly correlated with tumor progression and pathogenesis in breast cancer. Whereas, their regulatory roles and corresponding mechanisms in breast cancer are still not exhaustive. Thus, we intended to establish circRNA-mediated competive endogenous RNA (ceRNA) network to uncover the possible roles and clinical implications of circRNAs in breast cancer. Methods: Microarray and RNA-sequencing (RNA-seq) data were download from GEO and TCGA database to screen for differentially expressed RNAs (DEcircRNAs, DEmiRNAs, DEmRNAs) in breast cancer. By implementing online databases, we established ceRNA networks, performed gene set enrichment analysis, constructed protein-protein interaction (PPI) networks, and assessed the expression levels and prognostic significance of hub genes. Subsequently, we explored the functions of prognosis-related genes and constructed gene-drug interaction networks. Finally, the functional roles of DEcircRNAs in breast cancer were revealed via MTT and colony formation assay. Results: Based on the identified 8 DEcircRNAs, 25 miRNAs and 216 mRNAs, a ceRNA regulatory network was established. Further analysis revealed that prominent enrichments were transcription factor binding, transforming growth factor-beta (TGF-β) and Apelin signaling pathway etc. PPI network and survival curves analysis showed that elevated levels of hub genes (RACGAP1 and KPNA2) were associated with poorer prognosis. They were found to be positively relevant to cell cycle and proliferation. Then a prognostic sub-network of ceRNA was constructed, consisting of 2 circRNAs, 4 miRNAs and 2 mRNAs. The gene-drug interaction network showed that numerous drugs could regulate the expression of these two prognosis-related genes. Functional experiments showed that depletion of circ_0008812 and circ_0001583 could significantly inhibit the proliferation of MCF-7 cells. Conclusion: Our study constructed 4 prognostic regulatory axes that are significantly correlated with tumor prognosis in breast cancer patients, and uncover the roles of circ_0008812 and circ_0001583 in breast cancer, providing a new perspective into the molecular mechanisms of breast cancer pathogenesis.
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Affiliation(s)
- Hong Lin
- Department of Clinical Research, Sichuan Cancer Hospital and Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Fangyi Long
- Laboratory Medicine Center, Sichuan Provincial Maternity and Child Health Care Hospital, Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu Medical College, Chengdu, China
| | - Xiqian Zhang
- Department of Pharmacy, The Third People's Hospital of Chengdu & College of Medicine, Southwest Jiaotong University, Chengdu, China
| | - Pinghan Wang
- Laboratory Medicine Center, Sichuan Provincial Maternity and Child Health Care Hospital, Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu Medical College, Chengdu, China
| | - Ting Wang
- Department of Clinical Research, Sichuan Cancer Hospital and Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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26
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Huang CM, Tsai HL, Chen YC, Huang CW, Li CC, Su WC, Chang TK, Yeh YS, Chen PJ, Huang MY, Wang JY. Role of non-coding RNAs in radiosensitivity of colorectal cancer: A narrative review. Front Oncol 2022; 12:889658. [PMID: 35936676 PMCID: PMC9354854 DOI: 10.3389/fonc.2022.889658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/27/2022] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is a global public health concern because of its high prevalence and mortality. Although radiotherapy is a key method for treating CRC, radioresistance is an obstacle to radiotherapy use. The molecular mechanisms underlying the radioresistance of CRC remain unclear. Increasing evidence has revealed the multiple regulatory functions of non-coding RNAs (ncRNAs) in numerous malignancies, including CRC. Several ncRNAs have been reported to be involved in the determination of radiosensitivity of CRC cells, and some have excellent potential to be prognostic biomarkers or therapeutic targets in CRC treatment. The present review discusses the biological functions and underlying mechanisms of ncRNAs (primarily lncRNA, miRNA, and circRNA) in the regulation of the radiosensitivity of CRC. We also evaluate studies that examined ncRNAs as biomarkers of response to radiation and as therapeutic targets for enhancing radiosensitivity.
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Affiliation(s)
- Chun-Ming Huang
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Radiation Oncology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Radiation Oncology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsiang-Lin Tsai
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yen-Cheng Chen
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ching-Wen Huang
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ching-Chun Li
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wei-Chih Su
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tsung-Kun Chang
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yung-Sung Yeh
- Division of Trauma and Surgical Critical Care, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Emergency Medicine, Faculty of Post-Baccalaureate Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Po-Jung Chen
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Yii Huang
- Department of Radiation Oncology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Radiation Oncology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jaw-Yuan Wang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
- Pingtung Hospital, Ministry of Health and Welfare, Pingtung, Taiwan
- *Correspondence: Jaw-Yuan Wang, ;
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27
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Jia Z, Jia J, Yao L, Li Z. Crosstalk of Exosomal Non-Coding RNAs in The Tumor Microenvironment: Novel Frontiers. Front Immunol 2022; 13:900155. [PMID: 35663957 PMCID: PMC9162146 DOI: 10.3389/fimmu.2022.900155] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 04/22/2022] [Indexed: 12/18/2022] Open
Abstract
The tumor microenvironment (TME) is defined as a complex and dynamic tissue entity composed of endothelial, stromal, immune cells, and the blood system. The homeostasis and evolution of the TME are governed by intimate interactions among cellular compartments. The malignant behavior of cancer cells, such as infiltrating growth, proliferation, invasion, and metastasis, is predominantly dependent on the bidirectional communication between tumor cells and the TME. And such dialogue mainly involves the transfer of multifunctional regulatory molecules from tumor cells and/or stromal cells within the TME. Interestingly, increasing evidence has confirmed that exosomes carrying regulatory molecules, proteins, and nucleic acids act as an active link in cellular crosstalk in the TME. Notably, extensive studies have identified non-coding RNAs (ncRNAs), including long non-coding RNAs (lncRNAs), microRNAs (miRNAs), and circular RNAs (circRNAs), that could be encapsulated by exosomes, which regulate the coordinated function within the TME and thus participate in cancer development and progression. In this review, we summarize recent literature around the topic of the functions and mechanisms of exosomal ncRNAs in the TME and highlight their clinical significance.
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Affiliation(s)
- Zimo Jia
- Department of Biochemistry and Molecular Biology, Hebei Medical University, Shijiazhuang, China.,The Second General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jinlin Jia
- National Research Institute for Family Planning, National Human Genetic Resources Center, Beijing, China.,Graduate School, Peking Union Medical College, Beijing, China
| | - Lihui Yao
- Department of Otolaryngology, Henan Province Hospital of Traditional Chinese Medicine, Zhengzhou, China
| | - Zhihan Li
- The Second General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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28
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Upregulated circTMEM59 Inhibits Cell Growth and Metastasis by miR-668-3p/ID4 Axis in Colorectal Cancer. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7242124. [PMID: 35656024 PMCID: PMC9155906 DOI: 10.1155/2022/7242124] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 04/06/2022] [Accepted: 04/26/2022] [Indexed: 11/18/2022]
Abstract
The incidence and mortality of colorectal cancer (CRC) are ranked in the top three worldwide in 2020. Abundant studies have reported that circular RNAs (circRNAs) act critical roles in the genesis and development of tumors, including CRC. Nevertheless, the roles and detailed regulation mechanisms of circRNAs that are related to the initiation and development of CRC have not been fully found and clarified. This research primarily revealed that circTMEM59 was greatly downregulated in CRC tissues and cell lines via qRT-PCR. In addition, the decreased expression of circTMEM59 was closely related to adverse clinicopathological characteristics and the shorter survival time of CRC patients. Then, a further study found that the overexpression of circTMEM59 suppressed cell growth and accelerated the cell death of CRC via a series of experiments in vitro and in vivo. Furthermore, circTMEM59 also repressed the metastatic behaviors of CRC cells. Further study revealed that circTMEM59 played the role of competing endogenous RNAs (ceRNAs) by binding to miR-668-3p to increase the expression of inhibitor of DNA binding 4 (ID4) in CRC. In summary, the results of this study clarified the antitumor effects of circTMEM59/miR-668-3p/ID4 axis in CRC progression and provided potential therapeutic targets and clinical prognostic markers for CRC.
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29
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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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30
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Wu Z, Ju Q. Non-Coding RNAs Implicated in the Tumor Microenvironment of Colorectal Cancer: Roles, Mechanisms and Clinical Study. Front Oncol 2022; 12:888276. [PMID: 35574420 PMCID: PMC9096125 DOI: 10.3389/fonc.2022.888276] [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: 03/02/2022] [Accepted: 04/04/2022] [Indexed: 11/21/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumors. The morbidity and mortality rates have been increasing all over the world. It is critical to elucidate the mechanism of CRC occurrence and development. However, tumor microenvironment (TME) includes immune cells, fibroblasts, endothelial cells, cytokines, chemokines and other components that affect the progression of CRC and patients' prognosis. Non-coding RNAs (ncRNAs) including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), circular RNAs (circRNAs) without protein-coding ability have been shown to engage in tumor microenvironment-mediated angiogenesis and metastasis. Therefore, clarifying the mechanism of ncRNAs regulating the microenvironment is very important to develop the therapeutic target of CRC and improve the survival time of patients. This review focuses on the role and mechanism of ncRNAs in the CRC microenvironment and puts forward possible clinical treatment strategies.
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Affiliation(s)
| | - Qiang Ju
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, Qingdao, China
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31
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Chen C, Xia C, Tang H, Jiang Y, Wang S, Zhang X, Huang T, Yuan X, Wang J, Peng L. Circular RNAs Involve in Immunity of Digestive Cancers From Bench to Bedside: A Review. Front Immunol 2022; 13:833058. [PMID: 35464462 PMCID: PMC9020258 DOI: 10.3389/fimmu.2022.833058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/01/2022] [Indexed: 12/12/2022] Open
Abstract
The immune system plays a complex role in tumor formation and development. On the one hand, immune surveillance can inhibit the growth of tumors; on the other hand, immune evasion of tumors can create conditions conducive for tumor development and growth. CircRNAs are endogenous non-coding RNAs with a covalently closed loop structure that are abundantly expressed in eukaryotic organisms. They are characterized by stable structure, rich diversity, and high evolutionary conservation. In particular, circRNAs play a vital role in the occurrence, development, and treatment of tumors through their unique functions. Recently, the incidence and mortality of digestive cancers, especially those of gastric cancer, colorectal cancer, and liver cancer, have remained high. However, the functions of circRNAs in digestive cancers immunity are less known. The relationship between circRNAs and digestive tumor immunity is systematically discussed in our paper for the first time. CircRNA can influence the immune microenvironment of gastrointestinal tumors to promote their occurrence and development by acting as a miRNA molecular sponge, interacting with proteins, and regulating selective splicing. The circRNA vaccine even provides a new idea for tumor immunotherapy. Future studies should be focused on the location, transportation, and degradation mechanisms of circRNA in living cells and the relationship between circRNA and tumor immunity. This paper provides a new idea for the diagnosis and treatment of gastrointestinal tumors.
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Affiliation(s)
- Chunyue Chen
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Congcong Xia
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Hao Tang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Yirun Jiang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Shan Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Xin Zhang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Tao Huang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Xiaoqing Yuan
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Breast Tumour Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Junpu Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Li Peng, ; Junpu Wang,
| | - Li Peng
- Guangdong Provincial Key Laboratory of Malignant Tumour Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- *Correspondence: Li Peng, ; Junpu Wang,
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Sharma AR, Banerjee S, Bhattacharya M, Saha A, Lee SS, Chakraborty C. Recent progress of circular RNAs in different types of human cancer: Technological landscape, clinical opportunities and challenges (Review). Int J Oncol 2022; 60:56. [PMID: 35362541 DOI: 10.3892/ijo.2022.5346] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/10/2022] [Indexed: 11/11/2022] Open
Abstract
Circular RNAs (circRNAs) are a novel class of endogenous non‑coding RNAs that have been recently regarded as functionally active. CircRNAs are remarkably stable and known to possess several biological functions such as microRNA sponging, regulating transcription and splicing and occasionally acting as polypeptide‑producing templates. CircRNAs show tissue‑specific expression and have been reported to be associated with the progression of several types of malignancies. Given the recent progress in genome sequencing and bioinformatics techniques, a rapid increment in the biological role of circRNAs has been observed. Concurrently, the patent search from different patent databases shows that the patent number of circRNA is increasing very quickly. These phenomena reveal a rapid development of the technological landscape. In the present review, the recent progress on circRNAs in various kinds of cancer has been investigated and their function as biomarkers or therapeutic targets and their technological landscape have been appreciated. A new insight into circRNAs structure and functional capabilities in cancer has been reviewed. Continually increasing knowledge on their critical role during cancer progression is projecting them as biomarkers or therapeutic targets for various kinds of cancer. Thus, recent updates on the functional role of circRNAs in terms of the technological landscape, clinical opportunities (biomarkers and therapeutic targets), and challenges in cancer have been illustrated.
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Affiliation(s)
- Ashish Ranjan Sharma
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University‑Chuncheon Sacred Heart Hospital, Chuncheon, Gangwon 24252, Republic of Korea
| | - Shreya Banerjee
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal 700126, India
| | - Manojit Bhattacharya
- Department of Zoology, Fakir Mohan University, Vyasa Vihar, Balasore, Odisha 756020, India
| | - Abinit Saha
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal 700126, India
| | - Sang-Soo Lee
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University‑Chuncheon Sacred Heart Hospital, Chuncheon, Gangwon 24252, Republic of Korea
| | - Chiranjib Chakraborty
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal 700126, India
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Donda K, Torres BA, Maheshwari A. Non-coding RNAs in Neonatal Necrotizing Enterocolitis. NEWBORN 2022; 1:120-130. [PMID: 35754997 PMCID: PMC9219563 DOI: 10.5005/jp-journals-11002-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Keyur Donda
- Department of Pediatrics, University of South Florida Health Morsani College of Medicine, Tampa, Florida, United States of America
| | - Benjamin A Torres
- Department of Pediatrics, University of South Florida Health Morsani College of Medicine, Tampa, Florida, United States of America
| | - Akhil Maheshwari
- Global Newborn Society, Clarksville, Maryland, United States of America
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34
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Liu Y, Ao X, Yu W, Zhang Y, Wang J. Biogenesis, functions, and clinical implications of circular RNAs in non-small cell lung cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 27:50-72. [PMID: 34938606 PMCID: PMC8645422 DOI: 10.1016/j.omtn.2021.11.013] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lung cancer (LC) is the leading cause of cancer-related deaths worldwide, with high morbidity and mortality. Non-small cell lung cancer (NSCLC) is a major pathological type of LC and accounts for more than 80% of all cases. Circular RNAs (circRNAs) are a large class of non-coding RNAs (ncRNAs) with covalently closed-loop structures, a high abundance, and tissue-specific expression patterns. They participate in various pathophysiological processes by regulating complex gene networks involved in proliferation, apoptosis, migration, and epithelial-to-mesenchymal transition (EMT), as well as metastasis. A growing number of studies have revealed that the dysregulation of circRNAs contributes to many aspects of cancer progression, such as its occurrence, metastasis, and recurrence, suggesting their great potential as efficient and specific biomarkers in the diagnosis, prognosis, and therapeutic targeting of NSCLC. In this review, we systematically elucidate the characteristics, biogenesis, and functions of circRNAs and focus on their molecular mechanisms in NSCLC progression. Moreover, we highlight their clinical implications in NSCLC treatment.
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Affiliation(s)
- Ying Liu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, China.,School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Xiang Ao
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Wanpeng Yu
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Yuan Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266021, China
| | - Jianxun Wang
- School of Basic Medical Sciences, Qingdao Medical College, Qingdao University, Qingdao 266071, China
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35
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Jia Z, An J, Liu Z, Zhang F. Non-Coding RNAs in Colorectal Cancer: Their Functions and Mechanisms. Front Oncol 2022; 12:783079. [PMID: 35186731 PMCID: PMC8847166 DOI: 10.3389/fonc.2022.783079] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 01/12/2022] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) is a common malignancy with high mortality. However, the molecular mechanisms underlying CRC remain unclear. Controversies over the exact functions of non-coding RNAs (ncRNAs) in the progression of CRC have been prevailing for multiple years. Recently, accumulating evidence has demonstrated the regulatory roles of ncRNAs in various human cancers, including CRC. The intracellular signaling pathways by which ncRNAs act on tumor cells have been explored, and in CRC, various studies have identified numerous dysregulated ncRNAs that serve as oncogenes or tumor suppressors in the process of tumorigenesis through diverse mechanisms. In this review, we have summarized the functions and mechanisms of ncRNAs (mainly lncRNAs, miRNAs, and circRNAs) in the tumorigenesis of CRC. We also discuss the potential applications of ncRNAs as diagnostic and prognostic tools, as well as therapeutic targets in CRC. This review details strategies that trigger the recognition of CRC-related ncRNAs, as well as the methodologies and challenges of studying these molecules, and the forthcoming clinical applications of these findings.
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Affiliation(s)
- Zimo Jia
- Department of Biochemistry and Molecular Biology, Hebei Medical University, Shijiazhuang, China
| | - Jiaqi An
- Department of Biochemistry and Molecular Biology, Hebei Medical University, Shijiazhuang, China
| | - Ziyuan Liu
- School of Medicine, Shihezi University, Shihezi, China
| | - Fan Zhang
- Department of Biochemistry and Molecular Biology, Hebei Medical University, Shijiazhuang, China.,The Key Laboratory of Neural and Vascular Biology, Ministry of Education, Shijiazhuang, China
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36
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Huang Z, Wang C, Zhao X. circFIG 4 drives the carcinogenesis and metastasis of esophagus cancer via the miR-493-5p/E2F3 axis. Thorac Cancer 2022; 13:783-794. [PMID: 35083866 PMCID: PMC8930455 DOI: 10.1111/1759-7714.14321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/31/2021] [Accepted: 01/03/2022] [Indexed: 01/02/2023] Open
Abstract
Background Esophageal cancer (EC) is a highly malignant tumor of the digestive tract. Circular RNAs (circRNAs) have been verified to play a regulatory role in the occurrence and progression of different cancers, including EC. This research aimed to investigate the role and molecular mechanism of circFIG 4 in EC progression. Methods The analyses of circFIG 4, miR‐493‐5p, and neuro‐oncological ventral antigen 2 levels were administrated by quantitative real‐time polymerase chain reaction. The characteristics of circFIG 4 were determined by Ribonuclease R assay and Actinomycin D assay. Cell proliferation was assessed via colony formation assay and 5‐ethynyl‐2′‐deoxyuridine incorporation assay. Cell cycle distribution and apoptosis were evaluated by flow cytometry. Western blot was performed to assess protein expression. The targeted interaction among circFIG 4, miR‐493‐5p, and E2F transcription factor 3 (E2F3) were validated using dual‐luciferase reporter or RNA immunoprecipitation assays. Results circFIG 4 was overtly upregulated in EC and was relatively stable in EC cells. circFIG 4 knockdown impeded proliferation, migration, and invasion and expedited apoptosis in EC cells. circFIG 4 served as a miR‐493‐5p sponge to act in the development of EC. Furthermore, circFIG 4 modulated EC progression via targeting miR‐493‐5p and miR‐493‐5p suppressed EC progression via targeting E2F3. circFIG 4 modulated E2F3 expression through acting as a sponge of miR‐493‐5p. Moreover, circFIG 4 knockdown inhibited EC tumorigenesis by targeting miR‐493‐5p/E2F3 axis tumor growth in vivo. Conclusion circFIG 4 silence mitigated EC malignant progression at least partly by mediating the miR‐493‐5p/E2F3 pathway, highlighting new biomarkers and therapeutic targets for EC treatment.
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Affiliation(s)
- Zhen Huang
- Department of Thoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, China
| | - Chunyue Wang
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University, School of Clinical Medicine, Fujian Medical University, Xiamen, China
| | - Xin Zhao
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University, School of Clinical Medicine, Fujian Medical University, Xiamen, China
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Pan Z, Zhao R, Li B, Qi Y, Qiu W, Guo Q, Zhang S, Zhao S, Xu H, Li M, Gao Z, Fan Y, Xu J, Wang H, Wang S, Qiu J, Wang Q, Guo X, Deng L, Zhang P, Xue H, Li G. EWSR1-induced circNEIL3 promotes glioma progression and exosome-mediated macrophage immunosuppressive polarization via stabilizing IGF2BP3. Mol Cancer 2022; 21:16. [PMID: 35031058 PMCID: PMC8759291 DOI: 10.1186/s12943-021-01485-6] [Citation(s) in RCA: 140] [Impact Index Per Article: 70.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/20/2021] [Indexed: 12/13/2022] Open
Abstract
Background Gliomas are the most common malignant primary brain tumours with a highly immunosuppressive tumour microenvironment (TME) and poor prognosis. Circular RNAs (circRNA), a newly found type of endogenous noncoding RNA, characterized by high stability, abundance, conservation, have been shown to play an important role in the pathophysiological processes and TME remodelling of various tumours. Methods CircRNA sequencing analysis was performed to explore circRNA expression profiles in normal and glioma tissues. The biological function of a novel circRNA, namely, circNEIL3, in glioma development was confirmed both in vitro and in vivo. Mechanistically, RNA pull-down, mass spectrum, RNA immunoprecipitation (RIP), luciferase reporter, and co-immunoprecipitation assays were conducted. Results We identified circNEIL3, which could be cyclized by EWS RNA-binding protein 1(EWSR1), to be upregulated in glioma tissues and to correlate positively with glioma malignant progression. Functionally, we confirmed that circNEIL3 promotes tumorigenesis and carcinogenic progression of glioma in vitro and in vivo. Mechanistically, circNEIL3 stabilizes IGF2BP3 (insulin-like growth factor 2 mRNA binding protein 3) protein, a known oncogenic protein, by preventing HECTD4-mediated ubiquitination. Moreover, circNEIL3 overexpression glioma cells drives macrophage infiltration into the tumour microenvironment (TME). Finally, circNEIL3 is packaged into exosomes by hnRNPA2B1 and transmitted to infiltrated tumour associated macrophages (TAMs), enabling them to acquire immunosuppressive properties by stabilizing IGF2BP3 and in turn promoting glioma progression. Conclusions This work reveals that circNEIL3 plays a nonnegligible multifaceted role in promoting gliomagenesis, malignant progression and macrophage tumour-promoting phenotypes polarization, highlighting that circNEIL3 is a potential prognostic biomarker and therapeutic target in glioma. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01485-6.
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Affiliation(s)
- Ziwen Pan
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Rongrong Zhao
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Boyan Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Yanhua Qi
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Wei Qiu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Qindong Guo
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Shouji Zhang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Shulin Zhao
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Hao Xu
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China.,Department of Neurosurgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Ming Li
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China.,Department of Neurosurgery, Taian Central Hospital, Taian, Shandong, China
| | - Zijie Gao
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Yang Fan
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Jianye Xu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Huizhi Wang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Shaobo Wang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Jiawei Qiu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Qingtong Wang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Xing Guo
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Lin Deng
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Ping Zhang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China
| | - Hao Xue
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China. .,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China.
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, 107 Wenhua Western Road; Jinan, Shandong 250012, China, Jinan, 250012, Shandong, China. .,Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong, China.
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Li J, Zhang G, Liu CG, Xiang X, Le MT, Sethi G, Wang L, Goh BC, Ma Z. The potential role of exosomal circRNAs in the tumor microenvironment: insights into cancer diagnosis and therapy. Am J Cancer Res 2022; 12:87-104. [PMID: 34987636 PMCID: PMC8690929 DOI: 10.7150/thno.64096] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 10/21/2021] [Indexed: 12/11/2022] Open
Abstract
Exosomes are multifunctional regulators of intercellular communication by carrying various messages under both physiological and pathological status of cancer patients. Accumulating studies have identified the presence of circular RNAs (circRNAs) in exosomes with crucial regulatory roles in diverse pathophysiological processes. Exosomal circRNAs derived from donor cells can modulate crosstalk with recipient cells locally or remotely to enhance cancer development and propagation, and play crucial roles in the tumor microenvironment (TME), leading to significant enhancement of tumor immunity, metabolism, angiogenesis, drug resistance, epithelial mesenchymal transition (EMT), invasion and metastasis. In this review, we describe the advances of exosomal circRNAs and their roles in modulating cancer hallmarks, especially those in the TME. Moreover, clinical application potential of exosomal circRNAs in cancer diagnosis and therapy are highlighted, bridging the gap between basic knowledge and clinical practice.
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Eng GWL, Zheng Y, Yap DWT, Teo AYT, Cheong JK. Autophagy and ncRNAs: Dangerous Liaisons in the Crosstalk between the Tumor and Its Microenvironment. Cancers (Basel) 2021; 14:cancers14010020. [PMID: 35008183 PMCID: PMC8750064 DOI: 10.3390/cancers14010020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/14/2021] [Accepted: 12/18/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Tumor cells communicate with the stromal cells within the tumor microenvironment (TME) to create a conducive environment for tumor growth. One major avenue for mediating crosstalk between various cell types in the TME involves exchanges of molecular payloads in the form of extracellular vesicles/exosomes. Autophagy is a fundamental mechanism to maintain intracellular homeostasis but recent reports suggest that secretory autophagy plays an important role in promoting secretion of exosomes that are packaged with non-coding RNAs (ncRNAs) and other biomolecules from the donor cell. Uptake of exosomal autophagy-modulating ncRNAs by recipient cells may further perpetuate tumor progression. Abstract Autophagy is a fundamental cellular homeostasis mechanism known to play multifaceted roles in the natural history of cancers over time. It has recently been shown that autophagy also mediates the crosstalk between the tumor and its microenvironment by promoting the export of molecular payloads such as non-coding RNA (ncRNAs) via LC3-dependent Extracellular Vesicle loading and secretion (LDELS). In turn, the dynamic exchange of exosomal ncRNAs regulate autophagic responses in the recipient cells within the tumor microenvironment (TME), for both tumor and stromal cells. Autophagy-dependent phenotypic changes in the recipient cells further enhance tumor growth and metastasis, through diverse biological processes, including nutrient supplementation, immune evasion, angiogenesis, and therapeutic resistance. In this review, we discuss how the feedforward autophagy-ncRNA axis orchestrates vital communications between various cell types within the TME ecosystem to promote cancer progression.
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Affiliation(s)
- Gracie Wee Ling Eng
- Precision Medicine Programme, Yong Loo Lin School of Medicine (YLLSoM), National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 11, Singapore 119228, Singapore; (G.W.L.E.); (Y.Z.); (D.W.T.Y.); (A.Y.T.T.)
| | - Yilong Zheng
- Precision Medicine Programme, Yong Loo Lin School of Medicine (YLLSoM), National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 11, Singapore 119228, Singapore; (G.W.L.E.); (Y.Z.); (D.W.T.Y.); (A.Y.T.T.)
| | - Dominic Wei Ting Yap
- Precision Medicine Programme, Yong Loo Lin School of Medicine (YLLSoM), National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 11, Singapore 119228, Singapore; (G.W.L.E.); (Y.Z.); (D.W.T.Y.); (A.Y.T.T.)
| | - Andrea York Tiang Teo
- Precision Medicine Programme, Yong Loo Lin School of Medicine (YLLSoM), National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 11, Singapore 119228, Singapore; (G.W.L.E.); (Y.Z.); (D.W.T.Y.); (A.Y.T.T.)
| | - Jit Kong Cheong
- Precision Medicine Programme, Yong Loo Lin School of Medicine (YLLSoM), National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block Level 11, Singapore 119228, Singapore; (G.W.L.E.); (Y.Z.); (D.W.T.Y.); (A.Y.T.T.)
- NUS Centre for Cancer Research, National University of Singapore, 14 Medical Dr, Centre for Translational Medicine #12-01, Singapore 117599, Singapore
- Department of Biochemistry, YLLSoM, National University of Singapore, 8 Medical Drive, MD7 #03-09, Singapore 117597, Singapore
- Correspondence: ; Tel.: +65-66016388
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Duan S, Wang S, Huang T, Wang J, Yuan X. circRNAs: Insight Into Their Role in Tumor-Associated Macrophages. Front Oncol 2021; 11:780744. [PMID: 34926295 PMCID: PMC8671731 DOI: 10.3389/fonc.2021.780744] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/08/2021] [Indexed: 12/16/2022] Open
Abstract
Currently, it is well known that the tumor microenvironment not only provides energy support for tumor growth but also regulates tumor signaling pathways and promotes the proliferation, invasion, metastasis, and drug resistance of tumor cells. The tumor microenvironment, especially the function and mechanism of tumor-associated macrophages (TAMs), has attracted great attention. TAMs are the most common immune cells in the tumor microenvironment and play a vital role in the occurrence and development of tumors. circular RNA (circRNA) is a unique, widespread, and stable form of non-coding RNA (ncRNA), but little is known about the role of circRNAs in TAMs or how TAMs affect circRNAs. In this review, we summarize the specific manifestations of circRNAs that affect the tumor-associated macrophages and play a significant role in tumor progression. This review helps improve our understanding of the association between circRNAs and TAMs, thereby promoting the development and progress of potential clinical targeted therapies.
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Affiliation(s)
- Saili Duan
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha City, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Shan Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha City, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Tao Huang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha City, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Junpu Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha City, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Junpu Wang, ; Xiaoqing Yuan,
| | - Xiaoqing Yuan
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- *Correspondence: Junpu Wang, ; Xiaoqing Yuan,
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41
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Chen Y, Yao L, Tang Y, Jhong JH, Wan J, Chang J, Cui S, Luo Y, Cai X, Li W, Chen Q, Huang HY, Wang Z, Chen W, Chang TH, Wei F, Lee TY, Huang HD. CircNet 2.0: an updated database for exploring circular RNA regulatory networks in cancers. Nucleic Acids Res 2021; 50:D93-D101. [PMID: 34850139 PMCID: PMC8728223 DOI: 10.1093/nar/gkab1036] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/13/2021] [Accepted: 10/25/2021] [Indexed: 01/01/2023] Open
Abstract
Circular RNAs (circRNAs), which are single-stranded RNA molecules that have individually formed into a covalently closed continuous loop, act as sponges of microRNAs to regulate transcription and translation. CircRNAs are important molecules in the field of cancer diagnosis, as growing evidence suggests that they are closely related to pathological cancer features. Therefore, they have high potential for clinical use as novel cancer biomarkers. In this article, we present our updates to CircNet (version 2.0), into which circRNAs from circAtlas and MiOncoCirc, and novel circRNAs from The Cancer Genome Atlas database have been integrated. In total, 2732 samples from 37 types of cancers were integrated into CircNet 2.0 and analyzed using several of the most reliable circRNA detection algorithms. Furthermore, target miRNAs were predicted from the full-length circRNA sequence using three reliable tools (PITA, miRanda and TargetScan). Additionally, 384 897 experimentally verified miRNA-target interactions from miRTarBase were integrated into our database to facilitate the construction of high-quality circRNA-miRNA-gene regulatory networks. These improvements, along with the user-friendly interactive web interface for data presentation, search, and visualization, showcase the updated CircNet database as a powerful, experimentally validated resource, for providing strong data support in the biomedical fields. CircNet 2.0 is currently accessible at https://awi.cuhk.edu.cn/∼CircNet.
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Affiliation(s)
- Yigang Chen
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China.,School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Lantian Yao
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China.,School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Yun Tang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Jhih-Hua Jhong
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Jingting Wan
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Jingyue Chang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Shidong Cui
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Yijun Luo
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Xiaoxuan Cai
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Wenshuo Li
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China.,School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Qi Chen
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Hsi-Yuan Huang
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China.,School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Zhuo Wang
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Weiming Chen
- School of Data Science, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Tzu-Hao Chang
- Graduate Institute of Biomedical Informatics, Taipei Medical University, Taipei 110, Taiwan
| | - Fengxiang Wei
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China.,Department of Cell Biology, Jiamusi University, Jiamusi, Heilongjiang Province 154007, China.,Shenzhen Children's Hospital of China Medical University, Shenzhen, Guangdong Province 518172, China
| | - Tzong-Yi Lee
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Hsien-Da Huang
- The Genetics Laboratory, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, Guangdong Province 518172, China.,School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen 518172, China.,Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China
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Wang D, Cui L, Yang Q, Wang J. Circular RNA circZFPM2 promotes epithelial-mesenchymal transition in endometriosis by regulating miR-205-5p/ZEB1 signalling pathway. Cell Signal 2021; 87:110145. [PMID: 34517087 DOI: 10.1016/j.cellsig.2021.110145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/20/2021] [Accepted: 09/07/2021] [Indexed: 12/27/2022]
Abstract
Endometriosis is a debilitating gynecological disease affecting millions of women worldwide, but its exact pathogenesis remains unclear. Circular RNAs (circRNAs) have been demonstrated to be important regulators in multiple diseases. Nonetheless, the potential regulatory mechanism of aberrant circRNA expression in endometriosis has been elusive. The up-regulated circZFPM2 in ectopic endometrial tissues was previously screened by circRNA high-throughput sequencing and was furtherly validated by quantitative real time reverse transcriptase polymerase chain reaction (RT-qPCR). Overexpression of circZFPM2 promoted the proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) in Ishikawa and End1/E6E7 cells, whereas silencing circZFPM2 produced the opposite effect. Luciferase reporter assays validated that circZFPM2 could directly target miR-205-5p and miR-205-5p target ZEB1. RT-qPCR results showed that miR-205-5p was underexpressed while ZEB1 was overexpressed in ectopic endometrial tissues compared with their expression in eutopic endometria and non-endometriosis control endometria. The expression level of miR-205-5p was inversely proportional and that of ZEB1 was directly proportional with the proliferative, migrative, and invasive ability of endometrial cells. Further in vitro investigation indicated that miR-205-5p could inhibit EMT by targeting ZEB1. Subsequent rescue experiments confirmed that circZFPM2 could induce EMT and promote cell proliferation, migration, and invasion cascades through the miR-205-5p /ZEB1 signaling pathway. Conclusively, circZFPM2 may present a promising biomarker in the diagnosis and treatment of endometriosis.
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Affiliation(s)
- Dandan Wang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China
| | - Liangyi Cui
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China
| | - Qing Yang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China.
| | - Jiao Wang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China.
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Li X, Wang J, Long H, Lin W, Wang H, Chen Y, Yuan Q, Li X. circCDYL2, Overexpressed in Highly Migratory Colorectal Cancer Cells, Promotes Migration by Binding to Ezrin. Front Oncol 2021; 11:716073. [PMID: 34485151 PMCID: PMC8416158 DOI: 10.3389/fonc.2021.716073] [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: 05/28/2021] [Accepted: 07/26/2021] [Indexed: 11/28/2022] Open
Abstract
Background Colorectal cancer (CRC) is one of the most common malignancies with high mortality worldwide, particularly due to metastasis. However, there are no clinically available strategies for treating CRC metastasis. Exploring the mechanisms underlying CRC metastasis is the key to improve the treatment of CRC with metastasis. Methods In this study, we generated the highly migratory CRC cell subline H-RKO using a repeated transwell migration assay to identify circRNAs involved in CRC migration by high-throughput RNA sequencing. Upregulated circRNAs were validated by RT-qPCR to identify the most elevated circRNA. The expression of this circRNA (circCDYL2) was evaluated in 40 pairs of CRC tissues and four CRC cell lines by RT-qPCR. Transwell migration and wound healing assays were performed to verify the function of circCDYL2 in cell migration. The cellular distribution of circCDYL2 was confirmed using PCR. RNA pulldown and RNA immunoprecipitation were used to confirm the interaction between circCDYL2 and Ezrin. Western blotting, immunohistochemistry, and rescue experiments were used to determine the role of circCDYL2 in regulating Ezrin protein expression and AKT phosphorylation. Results Among the candidate circRNAs, circCDYL2 was the highest overexpressed circRNA in H-RKO compared to parental N-RKO cells. Furthermore, circCDYL2 expression was elevated in CRC tissues and cell lines. Gain- and loss-of-function assays indicated that circCDYL2 enhanced the migration of CRC cells. circCDYL2 was located in the cytoplasm of CRC cells and interacted with Ezrin to upregulate its protein levels, resulting in AKT phosphorylation. Ezrin knockdown abrogated the CRC cell migration induced by circCDYL2 overexpression. Conclusions Our study demonstrated for the first time that circCDYL2 promotes CRC migration by binding Ezrin and activating the AKT pathway. CircCDYL2 represents a potential therapeutic target for preventing CRC metastasis.
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Affiliation(s)
- Xiaomin Li
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jianjun Wang
- Department of Histology and Embryology, Wannan Medical College, Wuhu, China
| | - Huaicheng Long
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Weihao Lin
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Haowei Wang
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yujia Chen
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Qinzi Yuan
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xuenong Li
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
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Liu Z, Li M. Circular RNAs and their role in renal cell carcinoma: a current perspective. Cancer Cell Int 2021; 21:469. [PMID: 34488780 PMCID: PMC8422676 DOI: 10.1186/s12935-021-02181-7] [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: 04/01/2021] [Accepted: 08/27/2021] [Indexed: 02/07/2023] Open
Abstract
Circular RNAs (circRNAs) are a new class of long non-coding RNAs, that results from a special type of alternative splicing referred to as back-splicing. They are widely distributed in eukaryotic cells and demonstrate tissue-specific expression patterns in humans. CircRNAs actively participate in various important biological activities like gene transcription, pre-mRNA splicing, translation, sponging miRNA and proteins, etc. With such diverse biological functions, circRNAs not only play a crucial role in normal human physiology, as well as in multiple diseases, including cancer. In this review, we summarized our current understanding of circRNAs and their role in renal cell carcinoma (RCC), the most common cancer of kidneys. Studies have shown that the expression level of several circRNAs are considerably varied in RCC samples and RCC cell lines suggesting the potential role of these circRNAs in RCC progression. Several circRNAs promote RCC development and progression mostly via the miRNA/target gene axis making them ideal candidates for novel anti-cancer therapy. Apart from these, there are a few circRNAs that are significantly downregulated in RCC and overexpression of these circRNAs leads to suppression of RCC growth. Differential expression patterns and novel functions of circRNAs in RCC suggest that circRNAs can be utilized as potential biomarkers and therapeutic targets for RCC therapy. However, our current understanding of the role of circRNA in RCC is still in its infancy and much comprehensive research is needed to achieve clinical translation of circRNAs as biomarkers and therapeutic targets in developing effective treatment options for RCC.
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Affiliation(s)
- Zhongyuan Liu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Ming Li
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China.
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Qin S, Mao Y, Chen X, Xiao J, Qin Y, Zhao L. The functional roles, cross-talk and clinical implications of m6A modification and circRNA in hepatocellular carcinoma. Int J Biol Sci 2021; 17:3059-3079. [PMID: 34421350 PMCID: PMC8375232 DOI: 10.7150/ijbs.62767] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 07/06/2021] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related deaths worldwide. HCC has high rates of death and recurrence, as well as very low survival rates. N6-methyladenosine (m6A) is the most abundant modification in eukaryotic RNAs, and circRNAs are a class of circular noncoding RNAs that are generated by back-splicing and they modulate multiple functions in a variety of cellular processes. Although the carcinogenesis of HCC is complex, emerging evidence has indicated that m6A modification and circRNA play vital roles in HCC development and progression. However, the underlying mechanisms governing HCC, their cross-talk, and clinical implications have not been fully elucidated. Therefore, in this paper, we elucidated the biological functions and molecular mechanisms of m6A modification in the carcinogenesis of HCC by illustrating three different regulatory factors ("writer", "eraser", and "reader") of the m6A modification process. Additionally, we dissected the functional roles of circRNAs in various malignant behaviors of HCC, thereby contributing to HCC initiation, progression and relapse. Furthermore, we demonstrated the cross-talk and interplay between m6A modification and circRNA by revealing the effects of the collaboration of circRNA and m6A modification on HCC progression. Finally, we proposed the clinical potential and implications of m6A modifiers and circRNAs as diagnostic biomarkers and therapeutic targets for HCC diagnosis, treatment and prognosis evaluation.
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Affiliation(s)
- Sha Qin
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, China; and Department of Pathology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yitao Mao
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xue Chen
- Early Clinical Trial Center, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Juxiong Xiao
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yan Qin
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Luqing Zhao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, China; and Department of Pathology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Da Silva MLR, De Albuquerque BHDR, Allyrio TADMF, De Almeida VD, Cobucci RNDO, Bezerra FL, Andrade VS, Lanza DCF, De Azevedo JCV, De Araújo JMG, Fernandes JV. The role of HPV-induced epigenetic changes in cervical carcinogenesis (Review). Biomed Rep 2021; 15:60. [PMID: 34094536 PMCID: PMC8165754 DOI: 10.3892/br.2021.1436] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/10/2021] [Indexed: 12/12/2022] Open
Abstract
Cervical cancer is associated with infection by certain types of human papillomaviruses (HPVs), and this affects women worldwide. Despite the improvements in prevention and cure of HPV-induced cervical cancer, it remains the second most common type of cancer in women in the least developed regions of the world. Epigenetic modifications are stable long-term changes that occur in the DNA, and are part of a natural evolutionary process of necessary adaptations to the environment. They do not result in changes in the DNA sequence, but do affect gene expression and genomic stability. Epigenetic changes are important in several biological processes. The effects of the environment on gene expression can contribute to the development of numerous diseases. Epigenetic modifications may serve a critical role in cancer cells, by silencing tumor suppressor genes, activating oncogenes, and exacerbating defects in DNA repair mechanisms. Although cervical cancer is directly related to a persistent high-risk HPV infection, several epigenetic changes have been identified in both the viral DNA and the genome of the infected cells: DNA methylation, histone modification and gene silencing by non-coding RNAs, which initiate and sustain epigenetic changes. In the present review, recent advances in the role of epigenetic changes in cervical cancer are summarized.
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Affiliation(s)
- Martha Laysla Ramos Da Silva
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | | | | | - Valéria Duarte De Almeida
- Department of Biomedical Sciences, State University of Rio Grande do Norte, Mossoro 59607-360, Brazil
| | | | - Fabiana Lima Bezerra
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Vania Sousa Andrade
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Daniel Carlos Ferreira Lanza
- Laboratory of Applied Molecular Biology, Department of Biochemistry, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | | | - Josélio Maria Galvão De Araújo
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - José Veríssimo Fernandes
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
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Fu C, Wang S, Jin L, Zhang M, Li M. CircTET1 Inhibits Retinoblastoma Progression via Targeting miR-492 and miR-494-3p through Wnt/β-catenin Signaling Pathway. Curr Eye Res 2021; 46:978-987. [PMID: 33108919 DOI: 10.1080/02713683.2020.1843685] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose: Retinoblastoma (RB) is a frequent intraocular malignancy in children. Circular RNA (circRNA) plays an essential role in regulating the occurrence and development of tumors. This study aimed at investigating the function and molecular basis of hsa_circ_0093996 (circTET1) in RB.Methods: The expression of circTET1, miR-492 and miR-494-3p was examined using quantitative real-time polymerase chain reaction. Cell proliferation, cycle arrest, apoptosis, migration and invasion of RB cells were detected using Cell Counting Kit-8 (CCK-8), colony formation assay, flow cytometry, scratch assay and transwell analysis, respectively. The levels of matrix metalloproteinase (MMP) 2, MMP9 and Wnt/β-catenin pathway-related proteins were measured via western blot assay. The association between circTET1 and miR-492/miR-494-3p was validated via dual-luciferase reporter assay and RNA pull-down assay. Xenograft assay was employed to analyze tumor growth in vivo.Results: CircTET1 level was reduced, while miR-492 and miR-494-3p levels were increased in RB tissues and cells. Overexpression of circTET1 inhibited proliferation, migration and invasion, and promoted apoptosis and cell cycle arrest in Y79 and WERI-Rb1 cells. Moreover, circTET1 impeded RB cell progression by sponging miR-492/miR-494-3p. Also, up-regulation of circTET1 restrained Wnt/β-catenin pathway via regulating miR-492 and miR-494-3p. Furthermore, circTET1 suppressed tumor growth in xenograft models.Conclusion: CircTET1 inhibited RB progression by sponging miR-492/miR-494-3p and inactivating the Wnt/β-catenin pathway, which provided new insights for RB treatment.
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Affiliation(s)
- Changbo Fu
- Department of Ophthalmology, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Ophthalmology, The Affiliated Hospital of China University of Mining and Technology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China.,Department of Ophthalmology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China
| | - Suchang Wang
- Department of Ophthalmology, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Ophthalmology, The Affiliated Hospital of China University of Mining and Technology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China.,Department of Ophthalmology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China
| | - Lei Jin
- Department of Ophthalmology, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Ophthalmology, The Affiliated Hospital of China University of Mining and Technology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China.,Department of Ophthalmology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China
| | - Minmin Zhang
- Department of Ophthalmology, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Ophthalmology, The Affiliated Hospital of China University of Mining and Technology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China.,Department of Ophthalmology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China
| | - Mengmeng Li
- Department of Ophthalmology, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, China.,Department of Ophthalmology, The Affiliated Hospital of China University of Mining and Technology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China.,Department of Ophthalmology, Xuzhou Eye Research Institute, Xuzhou, Jiangsu, China
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Hatibaruah A, Rahman M, Agarwala S, Singh SA, Gupta S, Paul P. Circular RNAs in cancer and diabetes. J Genet 2021. [DOI: 10.1007/s12041-021-01268-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Liang Z, Zhao B, Hou J, Zheng J, Xin G. CircRNA circ-OGDH (hsa_circ_0003340) Acts as a ceRNA to Regulate Glutamine Metabolism and Esophageal Squamous Cell Carcinoma Progression by the miR-615-5p/PDX1 Axis. Cancer Manag Res 2021; 13:3041-3053. [PMID: 33854374 PMCID: PMC8039021 DOI: 10.2147/cmar.s290088] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/01/2021] [Indexed: 01/17/2023] Open
Abstract
Background Circular RNA hsa_circ_0003340 (circ-OGDH) has been uncovered to be involved in esophageal squamous cell carcinoma (ESCC) progression. However, the mechanism by which circ-OGDH regulates ESCC progression is unclear. Methods Expression levels of circ-OGDH, microRNA (miR)-615-5p, and PDX1 (pancreatic and duodenal homeobox 1) mRNA were evaluated with quantitative real-time polymerase chain reaction (qRT-PCR). The proliferation, apoptosis, migration, invasion, and cell cycle progression of ESCC cells were analyzed by MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide), colony formation, flow cytometry, and transwell assays. Measurement of glutamine consumption, α-KG (α-ketoglutarate) production, and ATP (Adenosine Triphosphate) content using corresponding kits. Protein levels were analyzed by Western blotting. The targeting relationship between circ-OGDH or PDX1 and miR-615-5p was verified by dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. The function of circ-OGDH in ESCC was confirmed by animal experiments. Results Circ-OGDH was upregulated in ESCC. Circ-OGDH inhibition reduced ESCC growth in vivo and accelerated cell apoptosis, cell cycle arrest, repressed cell proliferation, migration, invasion, and reduced cell glutamine metabolism in ESCC cells in vitro. MiR-615-5p was downregulated in ESCC, while PDX1 had an opposite result. Circ-OGDH sponged miR-615-5p to regulate PDX1 expression. MiR-615-5p inhibitor neutralized the repressive effect of circ-OGDH knockdown on malignancy and glutamine metabolism of ESCC cells. PDX1 overexpression counteracted the inhibitory impact of miR-615-5p mimic on malignancy and glutamine metabolism of ESCC cells. Conclusion Circ-OGDH sponged miR-615-5p to elevate PDX1 expression, thus elevating glutamine metabolism and promoting tumor growth in ESCC. The study offered evidence to support circ-OGDH as a promising target for ESCC therapy.
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Affiliation(s)
- Zongying Liang
- Department of Thoracic Surgery, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, People's Republic of China
| | - Baoshan Zhao
- Department of Thoracic Surgery, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, People's Republic of China
| | - Jishen Hou
- Department of Thoracic Surgery, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, People's Republic of China
| | - Jingxiong Zheng
- Department of Thoracic Surgery, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, People's Republic of China
| | - Guohua Xin
- Department of Thoracic Surgery, The Affiliated Hospital of Chengde Medical University, Chengde, 067000, People's Republic of China
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Long F, Lin Z, Li L, Ma M, Lu Z, Jing L, Li X, Lin C. Comprehensive landscape and future perspectives of circular RNAs in colorectal cancer. Mol Cancer 2021; 20:26. [PMID: 33536039 PMCID: PMC7856739 DOI: 10.1186/s12943-021-01318-6] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 01/19/2021] [Indexed: 12/14/2022] Open
Abstract
Colorectal cancer (CRC) is a common hereditary tumor that is often fatal. Its pathogenesis involves multiple genes, including circular RNAs (circRNAs). Notably, circRNAs constitute a new class of noncoding RNAs (ncRNAs) with a covalently closed loop structure and have been characterized as stable, conserved molecules that are abundantly expressed in tissue/development-specific patterns in eukaryotes. Based on accumulating evidence, circRNAs are aberrantly expressed in CRC tissues, cells, exosomes, and blood from patients with CRC. Moreover, numerous circRNAs have been identified as either oncogenes or tumor suppressors that mediate tumorigenesis, metastasis and chemoradiation resistance in CRC. Although the regulatory mechanisms of circRNA biogenesis and functions remain fairly elusive, interesting results have been obtained in studies investigating CRC. In particular, the expression of circRNAs in CRC is comprehensively modulated by multiple factors, such as splicing factors, transcription factors, specific enzymes and cis-acting elements. More importantly, circRNAs exert pivotal effects on CRC through various mechanisms, including acting as miRNA sponges or decoys, interacting with RNA binding proteins, and even translating functional peptides. Finally, circRNAs may serve as promising diagnostic and prognostic biomarkers and potential therapeutic targets in the clinical practice of CRC. In this review, we discuss the dysregulation, functions and clinical significance of circRNAs in CRC and further discuss the molecular mechanisms by which circRNAs exert their functions and how their expression is regulated. Based on this review, we hope to reveal the functions of circRNAs in the initiation and progression of cancer and highlight the future perspectives on strategies targeting circRNAs in cancer research.
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Affiliation(s)
- Fei Long
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, P.R. China
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of The University of South China, Hengyang, Hunan, 421001, P.R. China
| | - Zhi Lin
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P.R. China
| | - Liang Li
- Class 25 Grade 2016, The Five-Year Program in Clinical Medicine, School of Medicine, University of South China, Hengyang, Hunan, 421001, P.R. China
| | - Min Ma
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, P.R. China
| | - Zhixing Lu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, P.R. China
| | - Liang Jing
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, P.R. China
| | - Xiaorong Li
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, P.R. China.
| | - Changwei Lin
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, 410013, P.R. China.
- School of Life Sciences, Central South University, Changsha, 410078, Hunan, China.
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