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Hama Faraj GS, Hussen BM, Abdullah SR, Fatih Rasul M, Hajiesmaeili Y, Baniahmad A, Taheri M. Advanced approaches of the use of circRNAs as a replacement for cancer therapy. Noncoding RNA Res 2024; 9:811-830. [PMID: 38590433 PMCID: PMC10999493 DOI: 10.1016/j.ncrna.2024.03.012] [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: 12/14/2023] [Revised: 03/18/2024] [Accepted: 03/29/2024] [Indexed: 04/10/2024] Open
Abstract
Cancer is a broad name for a group of diseases in which abnormal cells grow out of control and are characterized by their complexity and recurrence. Although there has been progress in cancer therapy with the entry of precision medicine and immunotherapy, cancer incidence rates have increased globally. Non-coding RNAs in the form of circular RNAs (circRNAs) play crucial roles in the pathogenesis, clinical diagnosis, and therapy of different diseases, including cancer. According to recent studies, circRNAs appear to serve as accurate indicators and therapeutic targets for cancer treatment. However, circRNAs are promising candidates for cutting-edge cancer therapy because of their distinctive circular structure, stability, and wide range of capabilities; many challenges persist that decrease the applications of circRNA-based cancer therapeutics. Here, we explore the roles of circRNAs as a replacement for cancer therapy, highlight the main challenges facing circRNA-based cancer therapies, and discuss the key strategies to overcome these challenges to improve advanced innovative therapies based on circRNAs with long-term health effects.
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Affiliation(s)
- Goran Sedeeq Hama Faraj
- Department of Medical Laboratory Science, Komar University of Science and Technology, Sulaymaniyah, 46001, Iraq
| | - Bashdar Mahmud Hussen
- Department of Biomedical Sciences, College of Science, Cihan University-Erbil, Erbil, Kurdistan Region, 44001, Iraq
- Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, 44001, Iraq
| | - Snur Rasool Abdullah
- Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, 44001, Iraq
| | - Mohammed Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | | | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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2
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Mosca N, Alessio N, Di Paola A, Marrapodi MM, Galderisi U, Russo A, Rossi F, Potenza N. Osteosarcoma in a ceRNET perspective. J Biomed Sci 2024; 31:59. [PMID: 38835012 DOI: 10.1186/s12929-024-01049-y] [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: 12/27/2023] [Accepted: 05/24/2024] [Indexed: 06/06/2024] Open
Abstract
Osteosarcoma (OS) is the most prevalent and fatal type of bone tumor. It is characterized by great heterogeneity of genomic aberrations, mutated genes, and cell types contribution, making therapy and patients management particularly challenging. A unifying picture of molecular mechanisms underlying the disease could help to transform those challenges into opportunities.This review deeply explores the occurrence in OS of large-scale RNA regulatory networks, denominated "competing endogenous RNA network" (ceRNET), wherein different RNA biotypes, such as long non-coding RNAs, circular RNAs and mRNAs can functionally interact each other by competitively binding to shared microRNAs. Here, we discuss how the unbalancing of any network component can derail the entire circuit, driving OS onset and progression by impacting on cell proliferation, migration, invasion, tumor growth and metastasis, and even chemotherapeutic resistance, as distilled from many studies. Intriguingly, the aberrant expression of the networks components in OS cells can be triggered also by the surroundings, through cytokines and vesicles, with their bioactive cargo of proteins and non-coding RNAs, highlighting the relevance of tumor microenvironment. A comprehensive picture of RNA regulatory networks underlying OS could pave the way for the development of innovative RNA-targeted and RNA-based therapies and new diagnostic tools, also in the perspective of precision oncology.
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Affiliation(s)
- Nicola Mosca
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Nicola Alessio
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Alessandra Di Paola
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Maria Maddalena Marrapodi
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Umberto Galderisi
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Aniello Russo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Francesca Rossi
- Department of Woman, Child and General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Nicoletta Potenza
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy.
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3
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Slawski J, Jaśkiewicz M, Barton A, Kozioł S, Collawn JF, Bartoszewski R. Regulation of the HIF switch in human endothelial and cancer cells. Eur J Cell Biol 2024; 103:151386. [PMID: 38262137 DOI: 10.1016/j.ejcb.2024.151386] [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: 10/25/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024] Open
Abstract
Hypoxia-inducible factors (HIFs) are transcription factors that reprogram the transcriptome for cells to survive hypoxic insults and oxidative stress. They are important during embryonic development and reprogram the cells to utilize glycolysis when the oxygen levels are extremely low. This metabolic change facilitates normal cell survival as well as cancer cell survival. The key feature in survival is the transition between acute hypoxia and chronic hypoxia, and this is regulated by the transition between HIF-1 expression and HIF-2/HIF-3 expression. This transition is observed in many human cancers and endothelial cells and referred to as the HIF Switch. Here we discuss the mechanisms involved in the HIF Switch in human endothelial and cancer cells which include mRNA and protein levels of the alpha chains of the HIFs. A major continuing effort in this field is directed towards determining the differences between normal and tumor cell utilization of this important pathway, and how this could lead to potential therapeutic approaches.
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Affiliation(s)
- Jakub Slawski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Maciej Jaśkiewicz
- International Research Agenda 3P, Medicine Laboratory, Medical University of Gdansk, Gdansk, Poland
| | - Anna Barton
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Sylwia Kozioł
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - James F Collawn
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, USA
| | - Rafał Bartoszewski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland.
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Jawad SF, Altalbawy FMA, Hussein RM, Fadhil AA, Jawad MA, Zabibah RS, Taraki TY, Mohan CD, Rangappa KS. The strict regulation of HIF-1α by non-coding RNAs: new insight towards proliferation, metastasis, and therapeutic resistance strategies. Cancer Metastasis Rev 2024; 43:5-27. [PMID: 37552389 DOI: 10.1007/s10555-023-10129-8] [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: 02/11/2023] [Accepted: 07/21/2023] [Indexed: 08/09/2023]
Abstract
The hypoxic environment is prominently witnessed in most solid tumors and is associated with the promotion of cell proliferation, epithelial-mesenchymal transition (EMT), angiogenesis, metabolic reprogramming, therapeutic resistance, and metastasis of tumor cells. All the effects are mediated by the expression of a transcription factor hypoxia-inducible factor-1α (HIF-1α). HIF-1α transcriptionally modulates the expression of genes responsible for all the aforementioned functions. The stability of HIF-1α is regulated by many proteins and non-coding RNAs (ncRNAs). In this article, we have critically discussed the crucial role of ncRNAs [such as microRNAs (miRNAs), long non-coding RNAs (lncRNAs), circular RNAs (circRNAs), Piwi-interacting RNAs (piRNAs), and transfer RNA (tRNA)-derived small RNAs (tsRNAs)] in the regulation of stability and expression of HIF-1α. We have comprehensively discussed the molecular mechanisms and relationship of HIF-1α with each type of ncRNA in either promotion or repression of human cancers and therapeutic resistance. We have also elaborated on ncRNAs that are in clinical examination for the treatment of cancers. Overall, the majority of aspects concerning the relationship between HIF-1α and ncRNAs have been discussed in this article.
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Affiliation(s)
- Sabrean Farhan Jawad
- Department of Pharmacy, Al-Mustaqbal University College, Hilla, Babylon, 51001, Iraq
| | - Farag M A Altalbawy
- National Institute of Laser Enhanced Sciences, University of Cairo, Giza, 12613, Egypt
- Department of Chemistry, University College of Duba, University of Tabuk, Tabuk, Saudi Arabia
| | | | - Ali Abdulhussain Fadhil
- College of Medical Technology, Medical Lab Techniques, Al-Farahidi University, Baghdad, Iraq
| | - Mohammed Abed Jawad
- Department of Medical Laboratories Technology, Al-Nisour University College, Baghdad, Iraq
| | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | | | - Chakrabhavi Dhananjaya Mohan
- Department of Studies in Molecular Biology, University of Mysore, Manasagangotri, Mysore, 570006, India.
- FEST Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, Uttar Pradesh, 226 001, India.
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Xu Y, Liu X, Cao J, Wu Y, Jiang Q, Luo B. Rho GTPase-activating protein 1 promotes hepatocellular carcinoma progression via modulation by CircPIP5K1A/MiR-101-3p. Hepatol Res 2024; 54:174-188. [PMID: 37792600 DOI: 10.1111/hepr.13972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 09/04/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023]
Abstract
AIM There has been an increased focus on regulating cell function with Rho family GTPases, including proliferation, migration/invasion, polarity, and adhesion. Due to the challenges involved in targeting Rho family GTPases directly, it may be more effective to target their regulators, such as Rho GTPase-activating protein 1 (ARHGAP1). This present research was performed to define the clinical significance of ARHGAP1 expression, as well as its regulatory mechanisms in hepatocellular carcinoma. METHODS ARHGAP1 and miR-101-3p expression of liver cancer patients, and their relevance with clinicopathological characteristics and prognosis were analyzed by the Cancer Genome Atlas sequencing data, and verified using samples of hepatocellular carcinoma patients. The interactions between miR-101-3p and ARHGAP1 or circPIP5K1A were validated by bioinformatic analyses, as well as confirmed by quantitative reverse transcription polymerase chain reaction, western blotting, and dual-luciferase reporter analysis. Plate clonality assays, cell adhesion and migration experiments, and proliferation experiments were used for assessing the participation of the circPIP5K1A/miR-101-3p/ARHGAP1 pathway in cell proliferation and motility. RESULTS Elevated ARHGAP1 and reduced miR-101-3p expression are related to poorer survival. MiR-101-3p targets ARHGAP1 to suppress hepatocellular carcinoma cell colony formation and invasion, whereas miR-101-3p inhibitor reverses liver cancer proliferation and metastasis suppression caused by ARHGAP1 knockdown. In addition, circPIP5K1A, which is mainly distributed in the cytosol, showed carcinogenic effects by sponging miR-101-3p, thus regulating ARHGAP1 expression. CONCLUSIONS ARHGAP1 serves as an oncogenic gene in liver cancer, and the expression thereof is regulated by circPIP5K1A through sponging miR-101-3p.
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Affiliation(s)
- Yanni Xu
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Xiaodi Liu
- Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Ultrasound Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jincheng Cao
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Ye Wu
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Qiongchao Jiang
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Baoming Luo
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
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Hong W, Du K, Zhang Q, Ren Z, Gao X. Tanreqing suppresses the proliferation and migration of non-small cell lung cancer cells by mediating the inactivation of the HIF1α signaling pathway via exosomal circ-WDR78. J Biomol Struct Dyn 2024:1-12. [PMID: 38247231 DOI: 10.1080/07391102.2023.2301514] [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: 04/18/2023] [Accepted: 10/25/2023] [Indexed: 01/23/2024]
Abstract
Circular RNAs (circRNAs) have emerged as regulators of cancer progression, including non-small cell lung cancer (NSCLC). Tanreqing (TRQ), a traditional Chinese medicine, is used clinically for respiratory diseases. RT-qPCR quantified circ-WDR78 expression in NSCLC cells. Cell growth, apoptosis, invasion, and migration were assessed by functional assays. RNA-binding protein immunoprecipitation (RIP), luciferase reporter, and RNA pull-down assays determined the competing endogenous RNA (ceRNA) network of circ-WDR78. The interaction between HIF1α and CD274 (PD-L1) promoter was analyzed by chromatin immunoprecipitation (ChIP). Circ-WDR78 expression was up-regulated in TRQ-treated NSCLC cells. Functionally, circ-WDR78 exhibited anti-tumor effects in these cells. Additionally, circ-WDR78 could also induce reactive oxygen species (ROS) accumulation by down-regulating HIF1α expression, promoting autophagy. Mechanistically, circ-WDR78 destabilizes HIF1α via the miR-1265/FBXW8 axis. TRQ-induced exosome secretion from NSCLC cells inhibits PD-L1 expression, preventing immune escape. We found that TRQ-treated NSCLC cells secrete exosomes to transmit circ-WDR78 to untreated NSCLC cells, inhibiting the malignancy of recipient tumor cells. In conclusion, TRQ inhibits NSCLC cell proliferation, invasion, and migration through exosomal circ-WDR78-mediated inactivation of the HIF1α signaling pathway, providing potential insight into TRQ injection for NSCLC treatment.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Weijun Hong
- Department of Pulmonary and Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai, China
| | - Kaifeng Du
- Department of Pulmonary and Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai, China
| | - Qingqing Zhang
- Department of Pulmonary and Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai, China
| | - Zhiguo Ren
- Department of Respiratory Medicine, No.971 Hospital of People's Liberation Army Navy, Qingdao, Shandong, China
| | - Xiwen Gao
- Department of Pulmonary and Critical Care Medicine, Minhang Hospital, Fudan University, Shanghai, China
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Zhao Q, Li D, Feng J, Jinsihan D. MiR-600 mediates EZH2/RUNX3 signal axis to modulate breast cancer cell viability and sorafenib sensitivity. J Biochem Mol Toxicol 2024; 38:e23613. [PMID: 38229326 DOI: 10.1002/jbt.23613] [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: 04/18/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 01/18/2024]
Abstract
Breast cancer (BC) ranks as the most prevalent gynecologic tumor globally. Abnormal expression of miRNAs is concerned with the development of cancers such as BC. However, little is known about the role of miR-600 in BC. This work aimed to explore the role of miR-600 in the malignant progression and sorafenib sensitivity of BC cells. Expression and interaction of miR-600/EZH2/RUNX3 were analyzed by bioinformatics. qRT-PCR was utilized to assay RNA expression of miR-600 and mRNA expression of EZH2/RUNX3. The binding relationship between miR-600 and EZH2 was tested by dual luciferase assay and RNA immunoprecipitation (RIP). The effects of miR-600/EZH2/RUNX3 axis on the malignant behavior and sorafenib sensitivity of BC cells were detected by CCK-8 and colony formation assay. Low expression of miR-600 and RUNX3 in BC was found by bioinformatics and molecular assays. High expression of EZH2 in BC was negatively correlated with RUVX3. Dual luciferase assay and RIP demonstrated that MiR-600 could bind to EZH2. Cell assays displayed that miR-600 knockdown could foster the malignant progression of BC cells and reduce the sensitivity of BC cells to sorafenib. EZH2 knockdown or RUNX3 overexpression could offset the effect of miR-600 inhibitor on the malignant behavior and sorafenib sensitivity of BC cells. MiR-600 can hinder the malignant behavior of BC cells and foster sensitivity of BC cells to sorafenib via EZH2/RUNX3 axis, exhibiting the miR-600/EZH2/RUNX3 axis as a feasible therapeutic target for BC patients.
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Affiliation(s)
- Qian Zhao
- Department of Breast Surgery, The Affiliated Tumor Hospital of Xinjiang, Urumqi, China
| | - Dan Li
- Department of Breast Surgery, The Affiliated Tumor Hospital of Xinjiang, Urumqi, China
| | - Jinchun Feng
- Department of Breast Surgery, The Affiliated Tumor Hospital of Xinjiang, Urumqi, China
| | - Dilixiati Jinsihan
- Department of Breast Surgery, The Affiliated Tumor Hospital of Xinjiang, Urumqi, China
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Gilyazova I, Gimalova G, Nizamova A, Galimova E, Ishbulatova E, Pavlov V, Khusnutdinova E. Non-Coding RNAs as Key Regulators in Lung Cancer. Int J Mol Sci 2023; 25:560. [PMID: 38203731 PMCID: PMC10778604 DOI: 10.3390/ijms25010560] [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: 11/18/2023] [Revised: 12/21/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
For several decades, most lung cancer investigations have focused on the search for mutations in candidate genes; however, in the last decade, due to the fact that most of the human genome is occupied by sequences that do not code for proteins, much attention has been paid to non-coding RNAs (ncRNAs) that perform regulatory functions. In this review, we principally focused on recent studies of the function, regulatory mechanisms, and therapeutic potential of ncRNAs including microRNA (miRNA), long ncRNA (lncRNA), and circular RNA (circRNA) in different types of lung cancer.
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Affiliation(s)
- Irina Gilyazova
- Institute of Biochemistry and Genetics, Ufa Federal Research Center of Russian Academy of Sciences, 450054 Ufa, Russia
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia
| | - Galiya Gimalova
- Institute of Biochemistry and Genetics, Ufa Federal Research Center of Russian Academy of Sciences, 450054 Ufa, Russia
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia
| | - Aigul Nizamova
- Institute of Biochemistry and Genetics, Ufa Federal Research Center of Russian Academy of Sciences, 450054 Ufa, Russia
| | - Elmira Galimova
- Department of Pathological Physiology, Bashkir State Medical University, 450008 Ufa, Russia
| | - Ekaterina Ishbulatova
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia
| | - Valentin Pavlov
- Institute of Urology and Clinical Oncology, Department of Urology, Bashkir State Medical University, 450008 Ufa, Russia
| | - Elza Khusnutdinova
- Institute of Biochemistry and Genetics, Ufa Federal Research Center of Russian Academy of Sciences, 450054 Ufa, Russia
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia
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Ning J, Luo Y, Chen L, Xiao G, Tanzhu G, Zhou R. CircRNAs and lung cancer: Insight into their roles in metastasis. Biomed Pharmacother 2023; 166:115260. [PMID: 37633056 DOI: 10.1016/j.biopha.2023.115260] [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: 06/04/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/28/2023] Open
Abstract
Lung cancer is the leading cause of cancer-related mortality worldwide. A major contributing factor to the poor survival rates in lung cancer is the high prevalence of metastasis at the time of diagnosis. To address this critical issue, it is imperative to investigate the mechanisms underlying lung cancer metastasis. Circular RNAs (circRNAs), a distinct type of ribonucleic acid characterized by their unique circular structure, have been implicated in the progression of various diseases. Recent studies have highlighted the close association between circRNAs and the occurrence and development of lung cancer, particularly in relation to metastasis. In this review, we provide a concise overview of the expression patterns and prognostic significance of circRNAs in lung cancer. Additionally, we summarized the current understanding of the clinical relevance of circRNAs in lung cancer metastasis. Furthermore, we systematically focused on the roles of circRNAs in each step of lung cancer metastasis, reflecting the sequential progression of this process. Notably, circRNAs exhibit dual functionality in lung cancer metastasis, acting both as facilitators and inhibitors of metastatic processes. Given their potential, circRNAs hold promise as novel biomarkers and therapeutic targets for lung cancer metastasis, warranting further investigation.
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Affiliation(s)
- Jiaoyang Ning
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yi Luo
- Department of Geriatric Medicine, Center of Coronary Circulation, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, China
| | - Liu Chen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Gang Xiao
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Guilong Tanzhu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Rongrong Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China; Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China.
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Sun Z, Han J, Wang J. Circular RNA PIP5K1A promotes glycolysis and malignancy of non-small cell lung cancer via miR-656-3p/GBE1 axis under hypoxia. Mol Cell Toxicol 2023. [DOI: 10.1007/s13273-023-00343-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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11
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The Tumorigenic Role of Circular RNA-MicroRNA Axis in Cancer. Int J Mol Sci 2023; 24:ijms24033050. [PMID: 36769372 PMCID: PMC9917898 DOI: 10.3390/ijms24033050] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of endogenous RNAs that control gene expression at the transcriptional and post-transcriptional levels. Recent studies have increasingly demonstrated that circRNAs act as novel diagnostic biomarkers and promising therapeutic targets for numerous cancer types by interacting with other non-coding RNAs such as microRNAs (miRNAs). The miRNAs are presented as crucial risk factors and regulatory elements in cancer by regulating the expression of their target genes. Some miRNAs are derived from transposable elements (MDTEs) that can transfer their location to another region of the genome. Genetic interactions between miRNAs and circular RNAs can form complex regulatory networks with various carcinogenic processes that play critical roles in tumorigenesis and cancer progression. This review focuses on the biological regulation of the correlative axis among circular RNAs, miRNAs, and their target genes in various cancer types and suggests the biological importance of MDTEs interacting with oncogenic or tumor-suppressive circRNAs in tumor progression.
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Sheng H, Wang X. Knockdown of circ-PIP5K1A overcomes resistance to cisplatin in ovarian cancer by miR-942-5p/NFIB axis. Anticancer Drugs 2023; 34:214-226. [PMID: 36730637 DOI: 10.1097/cad.0000000000001406] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Cisplatin (DDP)-based chemotherapy is the main chemotherapeutic agent for ovarian cancer (OC) treatment. Circular RNA PIP5K1A (circ-PIP5K1A) was found to promote OC tumorigenesis. However, whether circ-PIP5K1A was involved in DDP resistance in OC remains unclear. Levels of circ-PIP5K1A, microRNA (miR)-942-5p, and nuclear factor I B (NFIB) were detected using quantitative real-time PCR and Western blot assays. In-vitro experiments were conducted by using cell counting kit-8, cell colony formation, 5-ethynyl-2'-deoxyuridine, flow cytometry, and transwell assays, respectively. In-vivo assay was performed using murine xenograft model. The binding interaction between miR-942-5p and circ-PIP5K1A or NFIB was confirmed using dual-luciferase reporter assay. Exosomes were obtained from culture media by the use of commercial kits and qualified by transmission electron microscopy and Western blot. Circ-PIP5K1A was highly expressed in DDP-resistant OC tissues and cells. Circ-PIP5K1A knockdown could constrain the proliferation, migration, and invasion, as well as increase apoptosis and sensitivity to DDP in DDP-resistant OC cells. Mechanistically, circ-PIP5K1A acted as a sponge for miR-942-5p to positively regulate NFIB expression. Moreover, rescue experiments demonstrated that the anticancer and DDP sensitization effects caused by circ-PIP5K1A silencing in DDP-resistant OC cells were achieved through the miR-942-5p/NFIB axis. Importantly, circ-PIP5K1A silencing enhanced DDP efficacy and impeded tumor growth in OC in vivo . Additionally, we also found that circ-PIP5K1A was packaged into exosomes and could be internalized by surrounding cells. Circ-PIP5K1A knockdown reduced the resistance to DDP in OC via regulating miR-942-5p/NFIB axis. Besides that, circ-PIP5K1A was packaged into exosomes and exosomal circ-SKA3 could mediate intercellular communication between OC cells. These findings provided a promising therapeutic target for OC.
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Affiliation(s)
- Hui Sheng
- Department of Radiology, Yantai Shan Hospital, Yantai, China
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13
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Beg A, Parveen R, Fouad H, Yahia ME, Hassanein AS. Identification of Driver Genes and miRNAs in Ovarian Cancer through an Integrated In-Silico Approach. BIOLOGY 2023; 12:biology12020192. [PMID: 36829472 PMCID: PMC9952540 DOI: 10.3390/biology12020192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/25/2022] [Accepted: 01/05/2023] [Indexed: 01/28/2023]
Abstract
Ovarian cancer is the eighth-most common cancer in women and has the highest rate of death among all gynecological malignancies in the Western world. Increasing evidence shows that miRNAs are connected to the progression of ovarian cancer. In the current study, we focus on the identification of miRNA and its associated genes that are responsible for the early prognosis of patients with ovarian cancer. The microarray dataset GSE119055 used in this study was retrieved via the publicly available GEO database by NCBI for the analysis of DEGs. The miRNA GSE119055 dataset includes six ovarian carcinoma samples along with three healthy/primary samples. In our study, DEM analysis of ovarian carcinoma and healthy subjects was performed using R Software to transform and normalize all transcriptomic data along with packages from Bioconductor. Results: We identified miRNA and its associated hub genes from the samples of ovarian cancer. We discovered the top five upregulated miRNAs (hsa-miR-130b-3p, hsa-miR-18a-5p, hsa-miR-182-5p, hsa-miR-187-3p, and hsa-miR-378a-3p) and the top five downregulated miRNAs (hsa-miR-501-3p, hsa-miR-4324, hsa-miR-500a-3p, hsa-miR-1271-5p, and hsa-miR-660-5p) from the network and their associated genes, which include seven common genes (SCN2A, BCL2, MAF, ZNF532, CADM1, ELAVL2, and ESRRG) that were considered hub genes for the downregulated network. Similarly, for upregulated miRNAs we found two hub genes (PRKACB and TAOK1).
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Affiliation(s)
- Anam Beg
- Department of Computer Science, Jamia Millia Islamia, New Delhi 110025, India
- Correspondence: or (A.B.); (R.P.); Tel.: +91-965-049-3477 (R.P.)
| | - Rafat Parveen
- Department of Computer Science, Jamia Millia Islamia, New Delhi 110025, India
- Correspondence: or (A.B.); (R.P.); Tel.: +91-965-049-3477 (R.P.)
| | - Hassan Fouad
- Applied Medical Science Department, CC, King Saud University, Riyadh 11433, Saudi Arabia
| | - M. E. Yahia
- Faculty of Engineering and Natural Sciences, International University of Sarajevo, Hrasnička Cesta 15, Ilidža, 71210 Sarajevo, Bosnia and Herzegovina
| | - Azza S. Hassanein
- Biomedical Engineering Department, Faculty of Engineering, Helwan University, Cairo 11792, Egypt
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14
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Sun Y, He P, Li L, Ding X. The significance of the crosstalk between ubiquitination or deubiquitination and ncRNAs in non-small cell lung cancer. Front Oncol 2023; 12:969032. [PMID: 36727069 PMCID: PMC9884829 DOI: 10.3389/fonc.2022.969032] [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: 06/14/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
Lung cancer (LC) remains the leading cause of cancer-related deaths worldwide, with extremely high morbidity and mortality rates. Non-small cell lung cancer (NSCLC) is the most critical type of LC. It seriously threatens the life and health of patients because of its early metastasis, late clinical symptoms, limited early screening methods, and poor treatment outcomes. Non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), participate in cell proliferation, metastasis, and chemoresistance. Several previous studies have proven that ncRNAs are vital regulators of tumorigenesis. Ubiquitination plays the most crucial role in protein post-translational modification (PTM). Deubiquitination and ubiquitination form a homeostasis. In summary, ubiquitination and deubiquitination play essential roles in mediating the degradation or overexpression of a range of crucial proteins in various cancers. A growing number of researchers have found that interactions between ncRNAs and ubiquitination (or deubiquitination) play a crucial role in NSCLC. This review presents several typical examples of the important effects of ncRNAs and ubiquitination (or deubiquitination) in NSCLC, aiming to provide more creative ideas for exploring the diagnosis and treatment of NSCLC.
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Affiliation(s)
- Yiyang Sun
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ping He
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, China,*Correspondence: Ping He,
| | - Li Li
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xue Ding
- General Medicine Department, Dalian Friendship Hospital, Dalian, China
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15
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Hussen BM, Abdullah SR, Hama Faraj GS, Rasul MF, Salihi A, Ghafouri-Fard S, Taheri M, Mokhtari M. Exosomal circular RNA: a signature for lung cancer progression. Cancer Cell Int 2022; 22:378. [PMID: 36457039 PMCID: PMC9714134 DOI: 10.1186/s12935-022-02793-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/15/2022] [Indexed: 12/03/2022] Open
Abstract
Membrane vesicles having a diameter of 30-150 nm are known as exosomes. Several cancer types secrete exosomes, which may contain proteins, circular RNAs (circRNAs), microRNAs, or DNA. CircRNAs are endogenous RNAs that do not code for proteins and can create continuous and covalently closed loops. In cancer pathogenesis, especially metastasis, exosomal circRNAs (exo-circRNAs) have a crucial role mainly due to the frequently aberrant expression levels within tumors. However, neither the activities nor the regulatory mechanisms of exo-circRNAs in advancing lung cancer (LC) are obvious. A better understanding of the regulation and network connections of exo-circRNAs will lead to better treatment for LCs. The main objective of the current review is to highlight the functions and mechanisms of exo-circRNAs in LC and assess the relationships between exo-circRNA dysregulation and LC progression. In addition, underline the possible therapeutic targets based on exo-circRNA modulating.
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Affiliation(s)
- Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
- Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | - Snur Rasool Abdullah
- Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | - Goran Sedeeq Hama Faraj
- Department of Medical Laboratory Science, Komar University of Science and Technology, Sulaymaniyah, Iraq
| | - Mohammed Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, Iraq
- Department of Biomedical Sciences, Cihan University-Erbil, Kurdistan Region, Erbil, 44001, Iraq
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Institute of Human Genetics, Jena University Hospital, Jena, Germany.
| | - Majid Mokhtari
- Tracheal Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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16
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Ren W, Yuan Y, Peng J, Mutti L, Jiang X. The function and clinical implication of circular RNAs in lung cancer. Front Oncol 2022; 12:862602. [PMID: 36338714 PMCID: PMC9629004 DOI: 10.3389/fonc.2022.862602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 08/26/2022] [Indexed: 12/02/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide. Despite the recent advent of promising new targeted therapies, lung cancer diagnostic strategies still have difficulty in identifying the disease at an early stage. Therefore, the characterizations of more sensible and specific cancer biomarkers have become an important goal for clinicians. Circular RNAs are covalently close, endogenous RNAs without 5' end caps or 3'poly (A) tails and have been characterized by high stability, abundance, and conservation as well as display cell/tissue/developmental stage-specific expressions. Numerous studies have confirmed that circRNAs act as microRNA (miRNA) sponges, RNA-binding protein, and transcriptional regulators; some circRNAs even act as translation templates that participate in multiple pathophysiological processes. Growing evidence have confirmed that circRNAs are involved in the pathogenesis of lung cancers through the regulation of proliferation and invasion, cell cycle, autophagy, apoptosis, stemness, tumor microenvironment, and chemotherapy resistance. Moreover, circRNAs have emerged as potential biomarkers for lung cancer diagnosis and prognosis and targets for developing new treatments. In this review, we will summarize recent progresses in identifying the biogenesis, biological functions, potential mechanisms, and clinical applications of these molecules for lung cancer diagnosis, prognosis, and targeted therapy.
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Affiliation(s)
- Wenjun Ren
- Department of Cardiovascular Surgery, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
- Department of Thoracic Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yixiao Yuan
- Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Peng
- Department of Thoracic Surgery, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Luciano Mutti
- The Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, United States
| | - Xiulin Jiang
- Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, China
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17
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Almouh M, Razmara E, Bitaraf A, Ghazimoradi MH, Hassan ZM, Babashah S. Circular RNAs play roles in regulatory networks of cell signaling pathways in human cancers. Life Sci 2022; 309:120975. [PMID: 36126723 DOI: 10.1016/j.lfs.2022.120975] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/10/2022] [Accepted: 09/14/2022] [Indexed: 10/31/2022]
Abstract
AIMS Circular RNAs (circRNAs) are endogenous covalently closed non-coding RNAs produced by reverse splicing of linear RNA. These molecules are highly expressed in mammalian cells and show cell/tissue-specific expression patterns. They are also significantly dysregulated in various cancers and function as oncogenes or tumor suppressors. Emerging evidence reveals that circRNAs contribute to cancer progression via modulating different cell signaling pathways. Nevertheless, the functional significance of circRNAs in cell signaling pathways regulation is still largely elusive. Considering this, shedding light on the multi-pathway effects of circRNAs may improve our understanding of targeted cancer therapy. Here, we discuss how circRNAs regulate the major cell signaling pathways in human cancers. MATERIALS AND METHODS We adopted a systematic search in PubMed using the following MeSH terms: circRNAs, non-coding RNAs, lncRNAs, exosomal circRNAs, cancer, and cell signaling. KEY FINDINGS We discussed different roles of circRNAs during tumorigenesis in which circRNAs affect tumor development through activating or inactivating certain cell signaling pathways via molecular interactions using various signaling pathways. We also discussed how crosstalk between circRNAs and lncRNAs modulate tumorigenesis and provides a resource for the identification of cancer therapeutic targets. SIGNIFICANCE We here elucidated how circRNAs can modulate different cell signaling pathways and play roles in cancer. This can broaden our horizons toward introducing promising prognostic, diagnostic, and therapeutic targets.
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Affiliation(s)
- Mansour Almouh
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ehsan Razmara
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800, Australia
| | - Amirreza Bitaraf
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad H Ghazimoradi
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Zuhair Mohammad Hassan
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sadegh Babashah
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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18
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Lai Q, Li W, Wang H, Xu S, Deng Z. Emerging role of circRNAs in cancer under hypoxia (Review). Oncol Lett 2022; 24:372. [PMID: 36238836 PMCID: PMC9494632 DOI: 10.3892/ol.2022.13492] [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: 03/30/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Circular RNA (circRNA), a recently identified type of non-coding RNAs (ncRNAs), forms a covalently closed loop with neither a 5′ cap structure nor a 3′ polyadenylated tail. Due to their lack of free ends, circRNAs are not easily cleaved by RNase R, thus avoiding degradation and being more stable than linear RNAs. Recent studies have suggested that circRNAs play a crucial role in regulating gene expression by acting as microRNAs sponges, RNA binding protein sponges and translational regulators. Currently, circRNAs are hot research topics due to their close association with the development of cancer and other diseases. Hypoxia is the most common microenvironment during tumor growth, and hypoxia-inducible factors have different effects on tumor growth and influence important cancer characteristics, including cell proliferation, apoptosis, differentiation, vascularization/angiogenesis, genetic instability, tumor metabolism, tumor immune response, invasion and metastasis. The present review aimed to study the biogenesis and mechanisms of gene regulation of circRNAs in hypoxia, to summarize the latest studies on circRNAs as potential diagnostic and prognostic biomarkers in hypoxia, and to understand the role of circRNAs in the process of tumor drug resistance under hypoxia.
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Affiliation(s)
- Qun Lai
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Wenqiang Li
- Department of Pulmonary and Critical Care Medicine, First People's Hospital of Zigong, Zigong, Sichuan 643000, P.R. China
| | - Hongping Wang
- Department of Neurosurgery, Tangshan Gongren Hospital of Hebei Medical University, Tangshan, Hebei 063000, P.R. China
| | - Siran Xu
- Department of Pulmonary and Critical Care Medicine, First People's Hospital of Zigong, Zigong, Sichuan 643000, P.R. China
| | - Zhiping Deng
- Department of Pulmonary and Critical Care Medicine, First People's Hospital of Zigong, Zigong, Sichuan 643000, P.R. China
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19
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Hypoxia-responsive circRNAs: A novel but important participant in non-coding RNAs ushered toward tumor hypoxia. Cell Death Dis 2022; 13:666. [PMID: 35915091 PMCID: PMC9343381 DOI: 10.1038/s41419-022-05114-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 01/21/2023]
Abstract
Given the rapid developments in RNA-seq technologies and bioinformatic analyses, circular RNAs (circRNAs) have gradually become recognized as a novel class of endogenous RNAs, characterized by covalent loop structures lacking free terminals, which perform multiple biological functions in cancer genesis, progression and metastasis. Hypoxia, a common feature of the tumor microenvironments, profoundly affects several fundamental adaptive responses of tumor cells by regulating the coding and non-coding transcriptomes and renders cancer's phenotypes more aggressive. Recently, hypoxia-responsive circRNAs have been recognized as a novel player in hypoxia-induced non-coding RNA transcriptomics to modulate the hypoxic responses and promote the progression and metastasis of hypoxic tumors. Moreover, via extracellular vesicles-exosomes, these hypoxia-responsive circRNAs could transmit hypoxia responses from cancer cells to the cells of surrounding matrices, even more distant cells of other organs. Here, we have summarized what is known about hypoxia-responsive circRNAs, with a focus on their interaction with hypoxia-inducible factors (HIFs), regulation of hypoxic responses and relevance with malignant carcinoma's clinical features, which will offer novel insights on the non-coding RNAs' regulation of cancer cells under hypoxic stress and might aid the identification of new theranostic targets and define new therapeutic strategies for those cancer patients with resistance to radiochemotherapy, because of the ubiquity of tumoral hypoxia.
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20
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Tian Q, Wu T, Zhang X, Xu K, Yin X, Wang X, Shi S, Wang P, Gao L, Xu S, Liu X. Immunomodulatory functions of the circ_001678/miRNA-326/ZEB1 axis in non-small cell lung cancer via the regulation of PD-1/PD-L1 pathway. Hum Mol Genet 2022; 31:4094-4106. [PMID: 35848890 DOI: 10.1093/hmg/ddac155] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 06/21/2022] [Accepted: 07/05/2022] [Indexed: 11/14/2022] Open
Abstract
High-throughput circRNA sequencing identified circRNA_001678 (circ_001678) as an upregulated circRNA in NSCLC tissues. Hence, the current study sought to investigate the function and the underlying mechanism of circRNA_001678 in immune escape of NSCLC. Briefly, commercially purchased NSCLC cell lines were adopted for in vitro experiment to evaluate the effects of circ_001678 over-expression or knockdown on cell biological functions, including proliferation, migration, and invasive abilities. In addition, the effects of circ_001678 on the in vivo tumorigenicity ability were evaluated for verification. Accordingly, we uncovered that circ_001678 over-expression augmented NSCLC progression in vitro and enhanced tumorigenicity ability in vivo. The interaction between circ_001678 and miR-326 predicted online was verified by means of luciferase and RNA pull-down assays. Furthermore, circ_001678 could sponge miR-326 to up-regulate ZEB1. On the other hand, the tumor-promoting effects of circ_001678 could be inhibited by anti-PD-L1/PD-1 treatment. Mechanistically, circ_001678 led to the activation of the PD-1/PD-L1 pathway to promote CD8+ T cell apoptosis, thereby inducing NSCLC cell immune escape via regulation of the miR-326/ZEB1 axis. To conclude, our findings revealed that circ_001678 sponges miR-326 to up-regulate ZEB1 expression and induce the PD-1/PD-L1 pathway-dependent immune escape, thereby promoting the malignant progression of NSCLC.
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Affiliation(s)
- Qi Tian
- Department of Respiratory, the First Hospital of Qinhuangdao, Qinhuangdao 066000, P.R. China
| | - Tong Wu
- Graduate School of Zunyi Medical University, Zunyi 563006, P.R. China
| | - Xiudi Zhang
- Graduate School of Hebei Medical University, Shijiazhuang 050017, P.R. China
| | - Ke Xu
- Graduate School of Hebei Medical University, Shijiazhuang 050017, P.R. China
| | - Xiaobo Yin
- Department of Respiratory, the First Hospital of Qinhuangdao, Qinhuangdao 066000, P.R. China
| | - Xiaojie Wang
- Department of Respiratory, the First Hospital of Qinhuangdao, Qinhuangdao 066000, P.R. China
| | - Shanshan Shi
- Department of Respiratory, the First Hospital of Qinhuangdao, Qinhuangdao 066000, P.R. China
| | - Ping Wang
- The First Medical Center of PLA General Hospital, Beijing 100853, P.R. China
| | - Liming Gao
- Department of Oncology, the First Hospital of Qinhuangdao, Qinhuangdao 066000, P.R. China
| | - Shufeng Xu
- Department of Respiratory, the First Hospital of Qinhuangdao, Qinhuangdao 066000, P.R. China
| | - Xinyan Liu
- Hebei Chest Hospital, Shijiazhuang 050047, P.R. China
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21
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Integrated analysis of the clinical consequence and associated gene expression of ALK in ALK-positive human cancers. Heliyon 2022; 8:e09878. [PMID: 35865984 PMCID: PMC9293659 DOI: 10.1016/j.heliyon.2022.e09878] [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: 09/28/2021] [Revised: 01/30/2022] [Accepted: 07/01/2022] [Indexed: 11/21/2022] Open
Abstract
Anaplastic lymphoma kinase (ALK) is a tyrosine kinase receptor that is genetically altered in several cancers, including NSCLC, melanoma, lymphoma, and other tumors. Although ALK is associated with various cancers, the relationship between ALK expression and patient prognosis in different cancers is poorly understood. Here, using multidimensional approaches, we revealed the correlation between ALK expression and the clinical outcomes of patients with LUAD, melanoma, OV, DLBC, AML, and BC. We analyzed ALK transcriptional expression, patient survival rate, genetic alteration, protein network, and gene and microRNA (miRNA) co-expression. Compared to that in normal tissues, higher ALK expression was found in LUAD, melanoma, and OV, which are associated with poor patient survival rates. In contrast, lower transcriptional expression was found to decrease the survival rate of patients with DLBC, AML, and BC. A total of 202 missense mutations, 17 truncating mutations, 7 fusions, and 3 in-frame mutations were identified. Further, 17 genes and 19 miRNAs were found to be exclusively co-expressed and echinoderm microtubule-associated protein-like 4 (EML4) was identified as the most positively correlated gene (log odds ratio >3). The gene ontology and signaling pathways of the genes co-expressed with ALK in these six cancers were also identified. Our findings offer a basis for ALK as a prognostic biomarker and therapeutic target in cancers, which will potentially contribute to precision oncology and assist clinicians in identifying suitable treatment options.
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22
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Zi H, Chen L, Ruan Q. Lidocaine represses the malignant behavior of lung carcinoma cells via the circ_PDZD8/miR-516b-5p/GOLT1A axis. Histol Histopathol 2022; 37:461-474. [PMID: 35060113 DOI: 10.14670/hh-18-423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Lung carcinoma is the most prevalent malignancy in adults. Lidocaine (Lido) has been confirmed to exert an anti-tumor role in many human cancers. However, the role and underlying mechanism of Lido in lung carcinoma remain poorly understood. Cell proliferation ability, migration, invasion, and apoptosis were measured by Colony formation, 5-ethynyl-2'-deoxyuridine (EdU), Cell Counting Kit-8 (CCK-8), transwell, and flow cytometry assays. Circ_PDZD8, microRNA-516b-5p (miR-516b-5p), and Golgi transport 1A (GOLT1A) levels were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Protein levels of proliferating cell nuclear antigen (PCNA) and GOLT1A were examined by western blot assay. The binding relationship between miR-516b-5p and circ_PDZD8 or GOLT1A was predicted by circular RNA Interactome or Starbase 3.0 and then verified by a dual-luciferase reporter assay. The biological roles of circ_PDZD8 and Lido on lung carcinoma cell growth were examined by the xenograft tumor model in vivo. Lido suppressed proliferation, migration, invasion, and induced apoptosis in lung carcinoma cells. Circ_PDZD8 and GOLT1A were increased, miR-516b-5p was decreased in lung carcinoma tissues and cell lines. Their expression presented the opposite trend in Lido-triggered lung carcinoma cells. Circ_PDZD8 might overturn the repression of Lido on cell growth ability and metastasis in this tumor. Mechanically, circ_PDZD8 might regulate GOLT1A expression by sponging miR-516b-5p. Circ_PDZD8 weakened the anti-lung carcinoma effect of Lido in vivo. Circ_PDZD8 might mitigate the inhibitory effect of Lido on tumor cell malignancy by modulating the miR-516b-5p/GOLT1A axis, providing a novel insight for lung carcinoma treatment.
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Affiliation(s)
- Huafen Zi
- Department of Anesthesiology, the First Affiliated Hospital of Chengdu Medical College, Sichuan, PR China
| | - Li Chen
- Department of Anesthesiology, the First Affiliated Hospital of Chengdu Medical College, Sichuan, PR China
| | - Qian Ruan
- Department of Anesthesiology, the First Affiliated Hospital of Chengdu Medical College, Sichuan, PR China.
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23
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Hypoxia-Induced circRNAs in Human Diseases: From Mechanisms to Potential Applications. Cells 2022; 11:cells11091381. [PMID: 35563687 PMCID: PMC9105251 DOI: 10.3390/cells11091381] [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: 02/15/2022] [Revised: 04/12/2022] [Accepted: 04/15/2022] [Indexed: 11/17/2022] Open
Abstract
Circular RNAs (circRNAs) are a special class of endogenous RNAs characterized by closed loop structures lacking 5′ to 3′ polarity and polyadenylated tails. They are widely present in various organisms and are more stable and conserved than linear RNAs. Accumulating evidence indicates that circRNAs play important roles in physiology-related processes. Under pathological conditions, hypoxia usually worsens disease progression by manipulating the microenvironment for inflammation and invasion through various dysregulated biological molecules. Among them, circRNAs, which are involved in many human diseases, including cancer, are associated with the overexpression of hypoxia-inducible factors. However, the precise mechanisms of hypoxic regulation by circRNAs remain largely unknown. This review summarizes emerging evidence regarding the interplay between circRNAs and hypoxia in the pathophysiological changes of diverse human diseases, including cancer. Next, the impact of hypoxia-induced circRNAs on cancer progression, therapeutic resistance, angiogenesis, and energy metabolism will be discussed. Last, but not least, the potential application of circRNAs in the early detection, prognosis, and treatment of various diseases will be highlighted.
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24
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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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25
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circBIRC6 contributes to the development of non-small cell lung cancer via regulating microRNA-217/amyloid beta precursor protein binding protein 2 axis. Chin Med J (Engl) 2022; 135:714-723. [PMID: 35191420 PMCID: PMC9276411 DOI: 10.1097/cm9.0000000000001940] [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: 06/07/2021] [Indexed: 12/24/2022] Open
Abstract
Background: Circular RNAs (circRNAs) are considered to be important regulators in cancer biology. In this study, we focused on the effect of circRNA baculoviral inhibitor of apoptosis protein (IAP) repeat containing 6 (circBIRC6) on non-small cell lung cancer (NSCLC) progression. Methods: The NSCLC and adjacent non-tumor tissues were collected at Shanghai Ninth People's Hospital. Quantitative real-time polymerase chain reaction was conducted for assessing the levels of circBIRC6, amyloid beta precursor protein binding protein 2 (APPBP2) messenger RNA (mRNA), baculoviral IAP repeat containing 6 mRNA (BIRC6), and microRNA-217 (miR-217). Western blot assay was adopted for measuring the protein levels of APPBP2, E-cadherin, N-cadherin, and vimentin. Colony formation assay, transwell assay, and flow cytometry analysis were utilized for evaluating cell colony formation, metastasis, and apoptosis. Dualluciferase reporter assay and RNA immunoprecipitation assay were carried out to determine the interaction between miR-217 and circBIRC6 and APPBP2 in NSCLC tissues. The murine xenograft model assay was used to investigate the function of circBIRC6 in tumor formation in vivo. Differences were analyzed via Student's t test or one-way analysis of variance. Pearson's correlation coefficient analysis was used to analyze linear correlation. Results: CircBIRC6 was overexpressed in NSCLC tissues and cells. Knockdown of circBIRC6 repressed the colony formation and metastasis and facilitated apoptosis of NSCLC cells in vitro and restrained tumorigenesis in vivo. Mechanically, circBIRC6 functioned as miR-217 sponge to promote APPBP2 expression in NSCLC cells. MiR-217 inhibition rescued circBIRC6 knockdown-mediated effects on NSCLC cell colony formation, metastasis, and apoptosis. Overexpression of miR-217 inhibited the malignant phenotypes of NSCLC cells, while the effects were abrogated by elevating APPBP2. Conclusion: CircBIRC6 aggravated NSCLC cell progression by elevating APPBP2 via sponging miR-217, which might provide a fresh perspective on NSCLC therapy.
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Xu Q, Shi J, Zhang L, Sheng Y, Zhang Y, Chu D, Xu A. Circ_0006006 facilitates non-small cell lung cancer progression by modulating miR-924/SRSF7 axis. J Gene Med 2022; 24:e3411. [PMID: 35037349 DOI: 10.1002/jgm.3411] [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: 06/04/2021] [Revised: 11/26/2021] [Accepted: 01/04/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is an aggressive tumor with high mortality. Circular RNAs (CircRNAs) played crucial roles in the development of cancers, including NSCLC. In this study, the action of circ_0006006 in NSCLC was investigated. METHODS Using real-time quantitative PCR (RT-qPCR), the relative gene expression was detected. The structure of circ_0006006 was identified using RNase R digestion and Actinomycin D treatment. The functional role of circ_0006006 in cell proliferation, migration, invasion, apoptosis and angiogenesis was explored using Cell Counting Kit-8 (CCK-8), EdU, colony formation, wound healing, transwell, flow cytometry, and tube formation assays, respectively. Using western blot, the relative proteins expression was measured. Dual-luciferase reporter and RNA immunoprecipitation (RIP) assays were employed to verify the correlation between microRNA-924 (miR-924) and circ_0006006 or serine/arginine-rich splicing factor 7 (SRSF7). Xenograft tumor experiment was used to investigate the effect of circ_0006006 on tumor growth in vivo. Immunohistochemistry (IHC) assay was performed to detect Ki-67, Bax, Bcl-2 and SRSF7 expression in tissues of mice. RESULTS Circ_0006006 was increased in NSCLC tissues and cells. Loss-of-function assays demonstrated that circ_0006006 silencing repressed the proliferative ability, cell migration and invasion, angiogenesis, and promoted cell apoptosis in A549 and H1299 cells. Follow-up mechanism experiments depicted that circ_0006006 sponged miR-924 and miR-924 inhibitor rescued circ_0006006 knockdown-mediated inhibition effect on the progression of NSCLC. Additionally, the inhibition effect of circ_0006006 knockdown on SRSF7 expression was reversed by miR-924 inhibitor. Moreover, the suppressive effect of miR-924 on NSCLC progression was reversed by SRSF7 overexpression. Xenograft tumor experiment unveiled that circ_0006006 knockdown inhibited tumor growth in vivo. CONCLUSION Circ_0006006 stimulated NSCLC progression by targeting miR-924 to regulate SRSF7 expression.
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Affiliation(s)
- Qinfu Xu
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiang Shi
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Long Zhang
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanbing Sheng
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yang Zhang
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dan Chu
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Aiguo Xu
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Ge L, Tan W, Li G, Gong N, Zhou L. Circ_0026134 promotes NSCLC progression by the miR-3619-5p/CHAF1B axis. Thorac Cancer 2022; 13:582-592. [PMID: 34985193 PMCID: PMC8841691 DOI: 10.1111/1759-7714.14301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the leading cause of cancer death worldwide. Circular RNAs (circRNAs) have been implicated in the pathogenesis of NSCLC. In this study, we explored the molecular determinants underlying the oncogenic property of circ_0026134 in NSCLC. METHODS The levels of circ_0026134, miR-3619-5p and chromatin assembly factor 1 subunit B axis (CHAF1B) were assessed by quantitative real-time polymerase chain reaction (qRT-PCR) and western blot. Cell colony formation, migration, invasion and apoptosis were detected by colony formation, Transwell, and flow cytometry assays, respectively. Direct relationships among circ_0026134, miR-3619-5p and CHAF1B were verified by dual-luciferase reporter assays. RESULTS Our results showed that circ_0026134 was highly expressed in NSCLC tissues and cells. Reduced circ_0026134 expression or miR-3619-5p overexpression inhibited NSCLC cell colony formation, migration, invasion, glycolysis and promoted cell apoptosis in vitro. Moreover, circ_0026134 directly targeted miR-3619-5p, and circ_0026134 regulated CHAF1B expression through miR-3619-5p. CHAF1B was a downstream effector of circ_0026134 in affecting NSCLC cell functional behaviors in vitro. Additionally, circ_0026134 silencing weakened tumor growth in vivo. CONCLUSIONS Our study identified a novel regulatory mechanism, the circ_0026134/miR-3619-5p/CHAF1B axis, for the oncogenic role of circ_0026134 in NSCLC, highlighting circ_00261345 inhibition as a potential therapeutic method against NSCLC.
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Affiliation(s)
- Liang Ge
- Department of Respiratory and Critical Care Medicine, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Wei Tan
- Department of Respiratory and Critical Care Medicine, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Guangcai Li
- Department of Respiratory and Critical Care Medicine, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Nianjin Gong
- Department of Respiratory and Critical Care Medicine, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Long Zhou
- Department of Respiratory and Critical Care Medicine, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
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Cammarata G, de Miguel-Perez D, Russo A, Peleg A, Dolo V, Rolfo C, Taverna S. Emerging noncoding RNAs contained in extracellular vesicles: rising stars as biomarkers in lung cancer liquid biopsy. Ther Adv Med Oncol 2022; 14:17588359221131229. [PMID: 36353504 PMCID: PMC9638531 DOI: 10.1177/17588359221131229] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/12/2022] [Indexed: 11/06/2022] Open
Abstract
Lung cancer has a high morbidity and mortality rate, and affected patients have a
poor prognosis and low survival. The therapeutic approaches for lung cancer
treatment, including surgery, radiotherapy, and chemotherapy, are not completely
effective, due to late diagnosis. Although the identification of genetic drivers
has contributed to the improvement of lung cancer clinical management, the
discovery of new diagnostic and prognostic tools remains a critical issue.
Liquid biopsy (LB) represents a minimally invasive approach and practical
alternative source to investigate tumor-derived alterations and to facilitate
the selection of targeted therapies. LB allows for the testing of different
analytes such as circulating tumor cells, extracellular vesicles (EVs),
tumor-educated platelets, and cell-free nucleic acids including DNAs, RNAs, and
noncoding RNAs (ncRNAs). Several regulatory factors control the key cellular
oncogenic pathways involved in cancers. ncRNAs have a wide range of regulatory
effects in lung cancers. This review focuses on emerging regulatory ncRNAs,
freely circulating in body fluids or shuttled by EVs, such as circular-RNAs,
small nucleolar-RNAs, small nuclear-RNAs, and piwi-RNAs, as new biomarkers for
early detection, prognosis, and monitoring of therapeutic strategy of lung
cancer treatment.
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Affiliation(s)
- Giuseppe Cammarata
- Institute of Translational Pharmacology (IFT), National Research Council (CNR) of Italy, Palermo, Italy
| | - Diego de Miguel-Perez
- Center for Thoracic Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alessandro Russo
- Medical Oncology Unit, A.O. Papardo & Department of Human Pathology, University of Messina, Messina, Italy
| | - Ariel Peleg
- Center for Thoracic Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Vincenza Dolo
- Department of Life, Health and Environmental Sciences, University of L’Aquila, L’Aquila, Italy
| | - Christian Rolfo
- Center for Thoracic Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, Box 1079, New York, NY 10029-6574, USA
| | - Simona Taverna
- Institute of Translational Pharmacology (IFT), National Research Council (CNR) of Italy, Via Ugo La Malfa, 153, Palermo 90146, Italy
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Zhang H, Zhang H, Zhu J, Liu H, Zhou Q. PESV represses non-small cell lung cancer cell malignancy through circ_0016760 under hypoxia. Cancer Cell Int 2021; 21:628. [PMID: 34838012 PMCID: PMC8626912 DOI: 10.1186/s12935-021-02336-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/12/2021] [Indexed: 12/25/2022] Open
Abstract
Background Non-small cell lung cancer (NSCLC) accounts for more than 80% of lung cancers, which is the most common malignant tumor worldwide. Polypeptide extract from scorpion venom (PESV) has been reported to inhibit NSCLC process. The present study aims to reveal the roles of PESV in NSCLC progression under hypoxia and the inner mechanism. Methods The expression levels of circular RNA 0016760 (circ_0016760) and microRNA-29b (miR-29b) were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Protein expression was determined by western blot and immunohistochemistry assays. Cell migration, invasion, proliferation and tube formation were investigated by transwell, cell colony formation, 3-(4,5-Dimethylthazol-2-yl)-2,5-diphenyltetrazolium bromide and tube formation assays. The impacts between PESV and circ_0016760 overexpression on tumor growth in vivo were investigated by in vivo tumor formation assay. Results Circ_0016760 expression was dramatically upregulated in NSCLC tissues and cells, compared with adjacent lung tissues and cells, respectively. PESV treatment downregulated circ_0016760 expression. Circ_0016760 silencing or PESV treatment repressed cell migration, invasion, proliferation and tube formation under hypoxia in NSCLC cells. Circ_0016760 overexpression restored the effects of PESV treatment on NSCLC process under hypoxia. Additionally, circ_0016760 acted as a sponge of miR-29b, and miR-29b bound to HIF1A. Meanwhile, miR-29b inhibitor impaired the influences of circ_0016760 knockdown on NSCLC process under hypoxia. Further, ectopic circ_0016760 expression restrained the effects of PESV exposure on tumor formation in vivo. Conclusion Circ_0016760 overexpression counteracted PESV-induced repression of NSCLC cell malignancy and angiogenesis under hypoxia through miR-29b/HIF1A axis. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02336-6.
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Affiliation(s)
- Hong Zhang
- Department of Oncology, The First Hospital of Hunan University of Chinese Medicine, No.95 Shaoshan Middle Road, Yuhua District, Changsha, 410007, Hunan, China.
| | - Haojian Zhang
- Department of Oncology, The First Hospital of Hunan University of Chinese Medicine, No.95 Shaoshan Middle Road, Yuhua District, Changsha, 410007, Hunan, China
| | - Jiye Zhu
- Department of Oncology, The First Hospital of Hunan University of Chinese Medicine, No.95 Shaoshan Middle Road, Yuhua District, Changsha, 410007, Hunan, China
| | - Huan Liu
- Department of Oncology, The First Hospital of Hunan University of Chinese Medicine, No.95 Shaoshan Middle Road, Yuhua District, Changsha, 410007, Hunan, China
| | - Qin Zhou
- Department of Oncology, The First Hospital of Hunan University of Chinese Medicine, No.95 Shaoshan Middle Road, Yuhua District, Changsha, 410007, Hunan, China
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Shi P, Li Y, Guo Q. Circular RNA circPIP5K1A contributes to cancer stemness of osteosarcoma by miR-515-5p/YAP axis. J Transl Med 2021; 19:464. [PMID: 34774083 PMCID: PMC8590363 DOI: 10.1186/s12967-021-03124-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/22/2021] [Indexed: 11/10/2022] Open
Abstract
Background Osteosarcoma is a common type of bone tumors and frequently occurs in children and adolescents. Cancer stem cells (CSCs) are a unique sub-type of self-renewal cancer cells and the stemness of cancer cells are involved in the spread, recurrence, metastasis, and even therapeutic resistance. However, the regulation mechanisms of CSCs in osteosarcoma are poorly understood. Circular RNA (circRNA) is a unique sort of non-coding RNAs and widely participate in the modulation of cancer progression. Methods In this study, we identified the critical function of circular RNA circPIP5K1A in stemness of osteosarcoma cells. Results CircPIP5K1A expression was significantly enhanced in clinical osteosarcoma tissues compared with the adjacent normal tissues. The depletion of circPIP5K1A by siRNA repressed osteosarcoma cell viabilities and induced osteosarcoma cell apoptosis. The suppression of circPIP5K1A attenuated the capabilities of invasion and migration of osteosarcoma cells. The circPIP5K1A knockdown increased E-Cadherin expression and decreased Vimentin expression in osteosarcoma cells. The sphere formation abilities of osteosarcoma cells were repressed by the depletion of circPIP5K1A. The CD133+CD44+ cell population of osteosarcoma cells was reduced by circPIP5K1A knockdown. The expression of ALDH1 and Nanog was decreased by the inhibition of circPIP5K1A in osteosarcoma cells. Mechanically, circPIP5K1A enhanced YAP expression by targeting miR-515-5p. MiR-515-5p inhibited stemness of osteosarcoma cells. The CSCs properties of osteosarcoma cells were repressed by circPIP5K1A knockdown or miR-515-5p mimic, while miR-515-5p inhibitor or YAP overexpression reversed circPIP5K1A knockdown-induced repression. Tumor xenograft analysis in nude mice demonstrated that the depletion of circPIP5K1A represses osteosarcoma cell growth in vivo. Conclusion In conclusion, we identified that circular RNA circPIP5K1A contributed to cancer stemness of osteosarcoma by miR-515-5p/YAP axis. Targeting circPIP5K1A may be considered as a potential therapeutic strategy for osteosarcoma treatment.
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Affiliation(s)
- Pengxu Shi
- Department of Bone Surgery, The People's Hospital of Liaoning Province, No. 33 Wenyi Road, Shenhe District, Shenyang, 110016, Liaoning, People's Republic of China.
| | - Yueting Li
- Department of Breast Surgery, Cancer Hospital of China Medical University, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning, People's Republic of China
| | - Qingsheng Guo
- Department of Bone Surgery, The People's Hospital of Liaoning Province, No. 33 Wenyi Road, Shenhe District, Shenyang, 110016, Liaoning, People's Republic of China
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Feng N, Guo Z, Wu X, Tian Y, Li Y, Geng Y, Yu Y. Circ_PIP5K1A regulates cisplatin resistance and malignant progression in non-small cell lung cancer cells and xenograft murine model via depending on miR-493-5p/ROCK1 axis. Respir Res 2021; 22:248. [PMID: 34537072 PMCID: PMC8449484 DOI: 10.1186/s12931-021-01840-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/07/2021] [Indexed: 02/08/2023] Open
Abstract
Background Chemoresistance limits the therapeutic effect of cisplatin (DDP) on non-small cell lung cancer (NSCLC). Circular RNAs (circRNAs) function as important regulators in chemoresistance. This study aimed to explore the regulation of circRNA Phosphatidylinositol-4-Phosphate 5-Kinase Type 1 Alpha (circ_PIP5K1A) in DDP resistance. Methods The expression analysis of circ_PIP5K1A, micoRNA-493-5p (miR-493-5p) and Rho Associated Coiled-Coil Containing Protein Kinase 1 (ROCK1) was conducted through reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Cell sensitivity was determined using 3-(4,5-dimethylthiazol-2-y1)-2,5-diphenyl tetrazolium bromide (MTT) assay. Cell proliferation and cell viability were evaluated by colony formation assay and MTT assay, respectively. Cell cycle and apoptosis detection was performed via flow cytometry. Cell motility was examined by transwell migration or invasion assay. Dual-luciferase reporter assay was applied to confirm the target binding. ROCK1 protein level was assayed via Western blot. In vivo assay was carried out using xenograft model in mice. Results Circ_PIP5K1A level was abnormally increased in DDP-resistant NSCLC tissues and cells. Silencing circ_PIP5K1A reduced DDP resistance, proliferation, cell cycle progression and cell motility in DDP-resistant NSCLC cells. Circ_PIP5K1A directly interacted with miR-493-5p in NSCLC cells. The function of circ_PIP5K1A was dependent on the negative regulation of miR-493-5p. MiR-493-5p directly targeted ROCK1 and circ_PIP5K1A regulated the ROCK1 level via acting as a sponge of miR-493-5p. Overexpression of miR-493-5p inhibited chemoresistance and cancer progression by downregulating ROCK1 expression in DDP-resistant NSCLC cells. Circ_PIP5K1A regulated DDP sensitivity in vivo via the miR-493-5p/ROCK1 axis. Conclusion These findings suggested that circ_PIP5K1A upregulated the ROCK1 expression to promote DDP resistance and cancer progression in NSCLC by sponging miR-493-5p.
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Affiliation(s)
- Nan Feng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157 West Fifth Road, Xincheng District, Xi'an, 710004, Shaanxi Province, China
| | - Zhi Guo
- Department of Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157 West Fifth Road, Xincheng District, Xi'an, 710004, Shaanxi Province, China
| | - Xiaokang Wu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157 West Fifth Road, Xincheng District, Xi'an, 710004, Shaanxi Province, China
| | - Ying Tian
- Department of Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157 West Fifth Road, Xincheng District, Xi'an, 710004, Shaanxi Province, China
| | - Yue Li
- Department of Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157 West Fifth Road, Xincheng District, Xi'an, 710004, Shaanxi Province, China
| | - Yan Geng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157 West Fifth Road, Xincheng District, Xi'an, 710004, Shaanxi Province, China.
| | - Yan Yu
- The Public Health, Xi'an Jiaotong University Health Science Center, No.76 Yanta West Road, Xi'an, 710061, Shaanxi Province, China.
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Dong H, Zhou J, Cheng Y, Wang M, Wang S, Xu H. Biogenesis, Functions, and Role of CircRNAs in Lung Cancer. Cancer Manag Res 2021; 13:6651-6671. [PMID: 34466035 PMCID: PMC8403226 DOI: 10.2147/cmar.s324812] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022] Open
Abstract
CircRNAs, a class of endogenous non-coding RNAs with closed-loop structures, have attracted increasing attention because of their good stability, high specificity of tissue expression, long half-life, and highly conserved sequence. CircRNAs have multiple biological functions, including miRNA sponge, transcription regulator, protein translation, interaction with protein, RNA maturation, and so on. These functions indicate the important role of circRNAs in tumorigenesis and malignant progression and their potential as potent diagnostic biomarkers and therapeutic molecules. In recent years, an increasing body of evidence suggests that circRNAs play a crucial role in proliferation, migration, invasion, and apoptosis of lung cancer cells. Therefore, circRNAs have gradually become a research focus in the diagnosis and treatment of lung cancer patients. This review summarizes the classification, biogenesis, and function of circRNAs, and discusses the role of circRNAs in the diagnosis, prognosis, and treatment of lung cancer patients.
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Affiliation(s)
- Huanhuan Dong
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Junliang Zhou
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Yue Cheng
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Meiqi Wang
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Shuqing Wang
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Hui Xu
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
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Ghafouri-Fard S, Abak A, Tavakkoli Avval S, Rahmani S, Shoorei H, Taheri M, Samadian M. Contribution of miRNAs and lncRNAs in osteogenesis and related disorders. Biomed Pharmacother 2021; 142:111942. [PMID: 34311172 DOI: 10.1016/j.biopha.2021.111942] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/07/2021] [Accepted: 07/14/2021] [Indexed: 12/11/2022] Open
Abstract
Non-coding RNAs have been found to regulate several developmental processes among them is osteogenesis. Although these transcripts have several distinct classes, two classes i.e. microRNAs and long non-coding RNAs have attained more attention. These transcripts regulate intramembranous as well as endochondral ossification processes. The effects of microRNAs on osteogenesis are mostly mediated through modulation of Wnt/β-catenin and TGFβ/BMP pathways. Long non-coding RNAs can directly affect expression of these pathways or osteogenic transcription factors. Moreover, they can serve as a molecular sponge for miRNAs. MALAT1/miR-30, MALAt1/miR-214, LEF1-AS1/miR-24-3p, MCF2L-AS1/miR-33a, MSC-AS1/miR-140-5p and KCNQ1OT1/miR-214 are examples of such kind of interaction between lncRNAs and miRNAs in the context of osteogenesis. In the current paper, we explain these two classes of non-coding RNAs in the osteogenesis and related disorders.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefe Abak
- Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Shayan Rahmani
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Samadian
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Gong L, Zhou X, Sun J. Circular RNAs Interaction with MiRNAs: Emerging Roles in Breast Cancer. Int J Med Sci 2021; 18:3182-3196. [PMID: 34400888 PMCID: PMC8364445 DOI: 10.7150/ijms.62219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/28/2021] [Indexed: 12/24/2022] Open
Abstract
Despite significant advances in cancer therapy strategies, breast cancer is one of the most common and lethal malignancies worldwide. Characterization of a new class of RNAs using next-generation sequencing opened new doors toward uncovering etiopathogenesis mechanisms of breast cancer as well as prognostic and diagnostic biomarkers. Circular RNAs (circRNAs) are a novel class of RNA with covalently closed and highly stable structures generated primarily from the back-splicing of precursor mRNAs. Although circRNAs exert their function through various mechanisms, acting as a sponge for miRNAs is their primary mechanism of function. Furthermore, growing evidence has shown that aberrant expression of circRNAs is involved in the various hallmarks of cancers. This paper reviews the biogenesis, characteristics, and mechanism of functions of circRNAs and their deregulation in various cancers. Finally, we focused on the circRNAs roles as a sponge for miRNAs in the development, metastasis, angiogenesis, drug resistance, apoptosis, and immune responses of breast cancer.
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Affiliation(s)
- Liu Gong
- Department of Medical Oncology, Hangzhou Xiasha Hospital, Hangzhou, Zhejiang Province, China
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35
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Chen HH, Zhang TN, Wu QJ, Huang XM, Zhao YH. Circular RNAs in Lung Cancer: Recent Advances and Future Perspectives. Front Oncol 2021; 11:664290. [PMID: 34295810 PMCID: PMC8290158 DOI: 10.3389/fonc.2021.664290] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/21/2021] [Indexed: 12/13/2022] Open
Abstract
Globally, lung cancer is the most commonly diagnosed cancer and carries with it the greatest mortality rate, with 5-year survival rates varying from 4–17% depending on stage and geographical differences. For decades, researchers have studied disease mechanisms, occurrence rates and disease development, however, the mechanisms underlying disease progression are not yet fully elucidated, thus an increased understanding of disease pathogenesis is key to developing new strategies towards specific disease diagnoses and targeted treatments. Circular RNAs (circRNAs) are a class of non-coding RNA widely expressed in eukaryotic cells, and participate in various biological processes implicated in human disease. Recent studies have indicated that circRNAs both positively and negatively regulate lung cancer cell proliferation, migration, invasion and apoptosis. Additionally, circRNAs could be promising biomarkers and targets for lung cancer therapies. This review systematically highlights recent advances in circRNA regulatory roles in lung cancer, and sheds light on their use as potential biomarkers and treatment targets for this disease.
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Affiliation(s)
- Huan-Huan Chen
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China.,Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tie-Ning Zhang
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China.,Department of Pediatric, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qi-Jun Wu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xin-Mei Huang
- Department of Endocrinology, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Yu-Hong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
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36
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Garlapati P, Ling J, Chiao PJ, Fu J. Circular RNAs regulate cancer-related signaling pathways and serve as potential diagnostic biomarkers for human cancers. Cancer Cell Int 2021; 21:317. [PMID: 34162394 PMCID: PMC8220689 DOI: 10.1186/s12935-021-02017-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 06/10/2021] [Indexed: 02/07/2023] Open
Abstract
Circular RNAs (circRNAs) are RNAs that have an important role in various pathological processes, including cancer. After the usage of high-throughput RNA sequencing, many circRNAs were found to be differentially expressed in various cancer cell lines and regulate cell signaling pathways by modulating particular gene expressions. Understanding their role in these pathways and what cancers they are found in can set the stage for identifying diagnostic and prognostic biomarkers and therapeutic targets of cancer. This paper will discuss which circRNAs are found in different cancers and what mechanisms they use to upregulate or downregulate certain cellular components.
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Affiliation(s)
- Pranavi Garlapati
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jinjie Ling
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY, 10032, USA
| | - Paul J Chiao
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jie Fu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
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Ma Z, Wang LZ, Cheng JT, Lam WST, Ma X, Xiang X, Wong ALA, Goh BC, Gong Q, Sethi G, Wang L. Targeting Hypoxia-Inducible Factor-1-Mediated Metastasis for Cancer Therapy. Antioxid Redox Signal 2021; 34:1484-1497. [PMID: 33198508 DOI: 10.1089/ars.2019.7935] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Significance: Hypoxia is emerging as a crucial regulator of the tumor microenvironment; it governs the metastatic potential of multiple primary cancers. It is also potentially involved in the regulation of tumorigenesis, tumor metabolism, and proangiogenic activity. Recent Advances: A wealth of clinical data across a wide range of cancer types has revealed strong correlations between hypoxia or the overexpression of hypoxia-inducible transcription factors and the rates of distant metastases and poor prognoses. Hypoxia-inducible factor (HIF)-1α, one of the key regulatory molecules of the HIF-1 signaling pathways, is involved in multiple crucial steps in the metastatic cascade. Critical Issues: Here, we present recent findings on the roles of the HIF-1 complex in tumor metastasis and highlight the potential of HIF-1α as a target for abrogating tumor metastasis. Moreover, we systematically describe the regulatory role of HIF-1 at each step of the metastatic cascade. Finally, we present the most recent advances in potential pharmacological interventions and the development of specific HIF-1 inhibitors for blocking tumor metastasis. Future Directions: Well-designed clinical trials are urgently needed to validate the anti-metastatic activity of HIF-1 inhibitors discovered in preclinical models. Antioxid. Redox Signal. 34, 1484-1497.
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Affiliation(s)
- Zhaowu Ma
- Department of Immunology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,The First School of Clinical Medicine, Health Science Center, Yangtze University, Nanhuan Road, Jingzhou, China
| | - Louis Zizhao Wang
- SingHealth Internal Medicine Residency Programme, Singapore General Hospital, Singapore, Singapore
| | - Jun-Ting Cheng
- Department of Immunology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,The First School of Clinical Medicine, Health Science Center, Yangtze University, Nanhuan Road, Jingzhou, China
| | - Walter Sze Tung Lam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Xiang Ma
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoqiang Xiang
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University, Shanghai, P.R. China
| | - Andrea Li-Ann Wong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Department of Haematology-Oncology, National University Cancer Institute, Singapore, Singapore
| | - Boon Cher Goh
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Department of Haematology-Oncology, National University Cancer Institute, Singapore, Singapore
| | - Quan Gong
- Department of Immunology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China.,The First School of Clinical Medicine, Health Science Center, Yangtze University, Nanhuan Road, Jingzhou, China
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lingzhi Wang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
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Ghafouri-Fard S, Dinger ME, Maleki P, Taheri M, Hajiesmaeili M. Emerging role of circular RNAs in the pathobiology of lung cancer. Biomed Pharmacother 2021; 141:111805. [PMID: 34120067 DOI: 10.1016/j.biopha.2021.111805] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/29/2021] [Accepted: 06/07/2021] [Indexed: 12/30/2022] Open
Abstract
Lung cancer is among the leading causes of cancer mortality and incidence in both sexes. Different classes of transcripts have been proposed as molecular markers in this type of cancer. Circular RNAs (circRNAs) are a group of transcripts with circular enclosed and stable configuration. These transcripts are stable in the blood, thus can be used as markers for detection of disorders. Moreover, dysregulation of circRNAs in the affected tissues of patients with different cancers shows their possible roles in the carcinogenesis. Several circRNAs including circPRKC1, circFGFR1, hsa-circ-0020123 and circTP63 have been found to be up-regulated in lung cancer samples. Meanwhile, cir-ITCH, hsa_circ_100395, hsa_circ_0033155, circRNF13, circNOL10, circ-UBR5, circPTK2 and circCRIM1 have been shown to be down-regulated in lung cancer tissues compared with noncancerous counterparts. Finally, prognostic values of circPRKC1, circFGFR1, has-circ-00120123, circTP63, circ_0067934, CDR1as, hsa_circRN_103809 and some other circRNAs have been appraised in lung cancer. In the current manuscript, we describe the impact and utility of circRNAs in the pathology of lung cancer.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marcel E Dinger
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Parichehr Maleki
- Department of Molecular Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Mohammad Taheri
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammadreza Hajiesmaeili
- Critical Care Quality Improvement Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Wang Y, Li L, Zhang W, Zhang G. Circular RNA circLDB2 functions as a competing endogenous RNA to suppress development and promote cisplatin sensitivity in non-squamous non-small cell lung cancer. Thorac Cancer 2021; 12:1959-1972. [PMID: 34096174 PMCID: PMC8258361 DOI: 10.1111/1759-7714.13993] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 12/26/2022] Open
Abstract
Background Circular RNAs (circRNAs) are covalently closed RNAs and are implicated in the development of non‐small cell lung cancer (NSCLC). Here, we identified the precise actions of circRNA LIM domain binding 2 (circLDB2, hsa_circ_0069244) in non‐squamous NSCLC development and drug sensitivity. Methods CircLDB2, microRNA (miR)‐346, and LIM and calponin‐homology domains 1 (LIMCH1) were quantified by quantitative real‐time polymerase chain reaction (qRT‐PCR) or western blot. Ribonuclease R (RNase R), actinomycin D, and subcellular localization assays were used to characterize circLDB2. Cell proliferation and viability, colony formation, apoptosis, migration, and invasion were gauged by Cell Counting Kit‐8 (CCK‐8), colony formation, flow cytometry, wound‐healing, and transwell assays, respectively. RNA immunoprecipitation (RIP), RNA pull‐down, and dual‐luciferase reporter assays were used to verify the direct relationship between miR‐346 and circLDB2 or LIMCH1. Animal studies were performed to evaluate the impact of circLDB2 in vivo. Results CircLDB2 was underexpressed in non‐squamous NSCLC and was identified as a bona fide circular transcript. Overexpression of circLDB2 impeded cell proliferation, migration, invasion, and enhanced apoptosis and cisplatin sensitivity in vitro, as well as promoted the antitumor effect of cisplatin in vivo. CircLDB2 regulated cell functional behaviors and cisplatin sensitivity by sponging miR‐346. LIMCH1 was a direct and functional target of miR‐346. Furthermore, circLDB2 acted as a competing endogenous RNA (ceRNA) for miR‐346 to induce LIMCH1 expression. Conclusion Our findings demonstrated that circLDB2 impeded non‐squamous NSCLC development and enhanced cisplatin sensitivity partially by acting as a ceRNA, highlighting circLDB2 as a promising candidate for the development of novel antitumor therapies.
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Affiliation(s)
- Yuanyuan Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Luguang Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Weiyu Zhang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Guojun Zhang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Liu S, Li Q, Ma Y, Corpe C, Wang J. Circular RNAs as novel potential biomarkers for pancreatic cancer. J Cancer 2021; 12:4604-4615. [PMID: 34149924 PMCID: PMC8210554 DOI: 10.7150/jca.58640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/19/2021] [Indexed: 12/13/2022] Open
Abstract
Pancreatic cancer (PaCa) is the fourth leading cause of cancer-related deaths in the United States, and the vast majority of these malignancies are pancreatic ductal adenocarcinomas (PDAC), but there is still a lack of early detection biomarkers for PaCa. Unlike linear RNAs, circRNAs form covalently closed continuous loops and can act as mammalian gene regulators. They may be diagnostic or predictive biomarkers for some tumors, also be novel potential therapeutic targets in different diseases. This review focuses on (1) the biogenesis of circRNAs, RNA binding proteins (RBPs) and complementary sequences of circRNAs; (2) the characteristics of circRNAs which allow them to interact with miRNAs; (3) the roles of circRNAs playing in the regulation of gene expression, cell behavior and cancer, and their potential role as novel biomarkers and therapeutic targets in pancreatic cancer.
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Affiliation(s)
- Shanshan Liu
- Shanghai Public Health Clinical Center, Fudan University, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
| | - Qiuyue Li
- Shanghai Public Health Clinical Center, Fudan University, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
| | - Yan Ma
- Shanghai Public Health Clinical Center, Fudan University, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
| | - Christopher Corpe
- King's College London, London, Nutritional Science Department, 150 Stamford street, waterloo, London, SE19NH, United Kingdom
| | - Jin Wang
- Shanghai Public Health Clinical Center, Fudan University, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
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Huang L, Rong Y, Tang X, Yi K, Wu J, Wang F. Circular RNAs Are Promising Biomarkers in Liquid Biopsy for the Diagnosis of Non-small Cell Lung Cancer. Front Mol Biosci 2021; 8:625722. [PMID: 34136531 PMCID: PMC8201604 DOI: 10.3389/fmolb.2021.625722] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/19/2021] [Indexed: 01/15/2023] Open
Abstract
The high incidence and mortality of lung cancer make early detection of lung cancer particularly important. At present, the diagnosis of lung cancer mainly depends on diagnostic imaging and tissue biopsy. However, current diagnostics are not satisfactory owing to the low specificity and inability of multiple sampling. Accumulating evidence indicates that circular RNAs (circRNAs) play a critical role in cancer progression and are promising cancer biomarkers. In particular, circRNAs are considered novel specific diagnostic markers for non-small cell lung cancer (NSCLC). Liquid biopsy is an important method in the early diagnosis of cancer due to its high sensitivity and specificity, as well as the possibility of performing multiple sampling. circRNAs are stably present in exosomes and sometimes become part of circulating nucleic acids, making them ideal for liquid biopsy. In this review, we summarize the advances in the research on circRNAs in NSCLC, and also highlight their potential applications for NSCLC detection.
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Affiliation(s)
- Lanxiang Huang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuan Rong
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xuan Tang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Kezhen Yi
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jianyuan Wu
- Clinical Trial Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Fubing Wang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan, China.,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
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42
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Du D, Cao X, Duan X, Zhang X. Blocking circ_0014130 suppressed drug resistance and malignant behaviors of docetaxel resistance-acquired NSCLC cells via regulating miR-545-3p-YAP1 axis. Cytotechnology 2021; 73:571-584. [PMID: 34349347 DOI: 10.1007/s10616-021-00478-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 05/15/2021] [Indexed: 12/26/2022] Open
Abstract
Recent evidences have claimed that circular RNAs are deregulated in docetaxel (DTX) resistance in malignant tumors, including non-small-cell lung cancer (NSCLC). Hsa_circ_0014130 (circ_0014130) is a new biomarker in NSCLC. However, its role in DTX-resistant NSCLC remained to be annotated. In this study, real-time PCR was used to measure expression of circ_0014130, and circ_0014130 was upregulated in NSCLC tumors and DTX-resistant NSCLC cells (NCI-H1299/DTX and A549/DTX). MTT assay analyzed the half inhibitory concentration (IC50) of DTX, and it was lowered by circ_0014130 interference in DTX-resistant NSCLC cells. Moreover, colony formation assay, flow cytometry, transwell assays, and xenograft tumor model revealed that silencing circ_0014130 facilitated apoptosis rate of DTX-resistant NSCLC cells, suppressed the colony formation, migration and invasion, and retarded xenograft tumor growth in nude mice. Dual-luciferase reporter assay and RNA immunoprecipitation confirmed that circ_0014130 was one competing endogenous RNA (ceRNA) for miRNA (miR)-545-3p, and circ_0014130 modulated expression of yes-associated protein 1 (YAP1), a target gene for miR-545-3p. YAP1 upregulation and miR-545-3p downregulation were allied with circ_0014130 upregulation in NSCLC tumors and DTX-resistant NSCLC cells. Functionally, downregulating miR-545-3p could abate the effects of circ_0014130 knockdown in DTX-resistant NSCLC cells in vitro, whereas its overexpression exerted similar effects of circ_0014130 knockdown. Either, restoring YAP1 partially reversed miR-545-3p effects in DTX-resistant NSCLC cells. Collectively, there might be a novel circ_0014130-miR-545-3p-YAP1 ceRNA pathway in regulation of chemoresistance and malignant behaviors of DTX-resistant NSCLC cells, suggesting a potential therapeutic approach for DTX resistance.
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Affiliation(s)
- Dongjie Du
- Oncology II, Hebei General Hospital, No. 348, Heping West Road, Xinhua District, Shijiazhuang, 050051 Hebei China
| | - Xiaoci Cao
- Oncology II, Hebei General Hospital, No. 348, Heping West Road, Xinhua District, Shijiazhuang, 050051 Hebei China
| | - Xinbo Duan
- Oncology II, Hebei General Hospital, No. 348, Heping West Road, Xinhua District, Shijiazhuang, 050051 Hebei China
| | - Xianbo Zhang
- Oncology II, Hebei General Hospital, No. 348, Heping West Road, Xinhua District, Shijiazhuang, 050051 Hebei China
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Yi S, Li Z, Wang X, Du T, Chu X. Circ_0001806 Promotes the Proliferation, Migration and Invasion of NSCLC Cells Through miR-1182/NOVA2 Axis. Cancer Manag Res 2021; 13:3067-3077. [PMID: 33854376 PMCID: PMC8041606 DOI: 10.2147/cmar.s290059] [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: 11/02/2020] [Accepted: 03/19/2021] [Indexed: 01/22/2023] Open
Abstract
Background Circular RNAs (circRNAs) are non-coding RNAs with a covalently closed loop. circRNAs affect the progression of diverse cancers. Nonetheless, circ_0001806 expression and function in non-small cell lung cancer (NSCLC) are undefined. Methods qRT-PCR was executed to examine circ_0001806, miR-1182 and NOVA2 mRNA expression levels in NSCLC tissues and cells. CCK-8, EdU, cell scratch test and Transwell assay were conducted to examine the viability, multiplication, migration and invasion of NSCLC cell lines H1650 and HCC827. The binding sites between circ_0001806 and miR-1182, miR-1182 and NOVA2 mRNA were predicted by the circular RNA Interactome and TargetScan databases, and the dual-luciferase reporter gene experiment was employed for verification. Western blot was implemented to examine NOVA2 expression. Results Circ_0001806 expression in NSCLC tissues and cell lines was substantially augmented, while miR-1182 expression was markedly decreased. Circ_0001806 facilitated the multiplication, migration and invasion of H1650 and HCC827 cells, while miR-1182 exerted the opposite effect. Circ_0001806 indirectly enhanced NOVA2 expression by specifically down-modulating miR-1182. Conclusion Circ_0001806 augments NOVA2 expression by targeting miR-1182 to enhance the multiplication, migration and invasion of NSCLC cells.
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Affiliation(s)
- Shenni Yi
- Department of Respiratory and Critical Medicine, Yantai Yuhuangding Hospital, Yantai, Shandong Province, 264000, People's Republic of China
| | - Zhan Li
- Department of Respiratory and Critical Medicine, Yantai Yuhuangding Hospital, Yantai, Shandong Province, 264000, People's Republic of China
| | - Xiuqin Wang
- Department of Respiratory and Critical Medicine, Yantai Yuhuangding Hospital, Yantai, Shandong Province, 264000, People's Republic of China
| | - Tiantian Du
- Department of Respiratory and Critical Medicine, Yantai Yuhuangding Hospital, Yantai, Shandong Province, 264000, People's Republic of China
| | - Xiuhong Chu
- Department of Nursing, Yantai YEDA Hospital, Yantai, Shandong Province, 264006, People's Republic of China
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Li S, Liu Y, Qiu G, Luo Y, Li X, Meng F, Li N, Xu T, Wang Y, Qin B, Xia S. Emerging roles of circular RNAs in non‑small cell lung cancer (Review). Oncol Rep 2021; 45:17. [PMID: 33649862 PMCID: PMC7876988 DOI: 10.3892/or.2021.7968] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 01/04/2021] [Indexed: 12/11/2022] Open
Abstract
Circular RNAs (circRNAs) are a class of novel endogenous transcripts with limited protein‑coding abilities. CircRNAs have been demonstrated to function as critical regulators of tumor development and distant metastasis through binding to microRNAs (miRNAs) and interacting with RNA‑binding proteins, thereby regulating transcription and translation. Emerging evidence has illustrated that certain circRNAs can serve as biomarkers for diagnosis and prognosis of cancer, and/or serve as potential therapeutic targets. Expression of functional circRNAs is commonly dysregulated in cancer and this is correlated with advanced Tumor‑Node‑Metastasis stage, lymph node status, distant metastasis, poor differentiation and shorter overall survival of cancer patients. Recently, an increasing number of studies have shown that circRNAs are closely associated with NSCLC. Functional experiments have revealed that circRNAs are intricately associated with the pathological progression of NSCLC. The present review provides an overview of the regulatory effect of circRNAs in the development and progression of NSCLC, taking into consideration various physiological and pathological processes, such as proliferation, apoptosis, invasion and migration, and their potential value as biomarkers and therapeutic targets.
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Affiliation(s)
- Shanshan Li
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yize Liu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Guanzhen Qiu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yinzhou Luo
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Xiang Li
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Fei Meng
- Department of Gynaecology and Obstetrics, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Nanyang Li
- Department of Pathology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Tiance Xu
- Second Department of Neurology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yong Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
- Central Laboratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Baoli Qin
- Department of Internal Medicine, Cancer Hospital of China Medical University/Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Shuyue Xia
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
- Dean's Office, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
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45
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Yuan H, Li Y, Shi X, Zou Y, Cai C. Circular RNA Phosphatidylinositol-4-Phosphate 5-Kinase Type 1 Alpha Affects Prostate Cancer Lymph Node Carcinoma of Prostate-Cell Multiplication and Apoptosis via Regulating MicroRNA-299-3p Expression. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Prostate cancer is a common cancer in aging men. This research explores the its molecular mechanisms of the circular RNA (circRNA) circPIP5K1A and its role in the multiplication and apoptosis of prostate cancer LNCaP cells. Cancerous tissue and adjacent non-cancerous tissue samples
were selected from 37 prostate cancer patients hospitalized from January 2016 to January 2020. Quantitative reverse transcription PCR (RT-qPCR) was used to amplify circPIP5K1A and detect the miR-299-3p levels. Cells from the LNCaP prostate cancer cell line were divided into the si-circPIP5K1A
group, si-negative control (NC) group, miR-299-3p group, miR-NC group, si-circPIP5K1A + anti-miR-299-3p group, and si-circPIP5K1A + anti-miR-NC group. Microculture tetrazolium (MTT) assay was used to assess the cell viability; flow cytometry was used to detect and analyze cell apoptosis; western
blot was used to study the protein expression; the dual-luciferase reporter assay was used to determine the targeted regulation of miR-299-3p by circPIP5K1A. CircPIP5K1A expression in prostate cancer tissue increased when miR-299-3p expression was reduced (P < 0.05) compared to those
in the adjacent tissue. After inhibition of circPIP5K1A or overexpression of miR-299-3p, the activity of LNCaP cells decreased, the apoptosis rate of LNCaP cells increased, Ki-67 and Bcl-2 expressions in LNCaP decreased, and Bax expression increased (P < 0.05). Due to CircPIP5K1A
regulation of miR-299-3p expression, mir-299-3p interference reversed the effect of circPIP5K1A inhibition of LNCaP-cell multiplication and apoptosis. Inhibiting the expression of circPIP5K1A may inhibit LNCaP-cell multiplication and expedite cell apoptosis by up-regulating miR-299-3p.
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Affiliation(s)
- Haofeng Yuan
- Department of Urology, SSL Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
| | - Yiqian Li
- Department of Gastroenterology, SSL Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
| | - Xiangmin Shi
- Department of Urology, SSL Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
| | - Yun Zou
- Department of Urology, SSL Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
| | - Chongyue Cai
- Department of Urology, SSL Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
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Zhou X, Deng J, Zhang W, Wang J. [MiR-600 suppresses HeLa cell proliferation by inhibiting hypoxia-inducible factor-1 α signaling pathway]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:210-215. [PMID: 33624593 DOI: 10.12122/j.issn.1673-4254.2021.02.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To determine whether miR-600 suppresses the proliferation of HeLa cells by inhibiting hypoxia-inducible factor-1α (HIF-1α) signaling pathway and its effect on expressions of cyclin D1 and vascular endothelial growth factor (VEGF). OBJECTIVE HeLa cells were transfected with miR-600 mimic and plasmid-HIF-1α, either alone or in combination, to up-regulate miR-600 and HIF-1α expressions in the cells. Six hours after the transfection, the cell viability was assessed using MTT assay, and the mRNA and protein expressions of VEGF, cyclin D1, and HIF-1α were analyzed with qPCR and Western blotting. OBJECTIVE The viability of HeLa cells showed no obvious changes 6 h after transfection with miR-600 mimic or Plasmid-HIF-1α. At 24 h and 48 h, the cells transfected with miR-600 mimic showed a time-dependent reduction of cell viability, while the cells transfected with Plasmid-HIF-1α alone and with both miR-600 mimic and Plasmid-HIF-1α showed increased cell viability. The cell viabilities in Plasmid-HIF-1α group were significantly higher than those in miR-600 mimic+Plasmid-HIF-1α group at 24 h and 48 h. Six hours after transfection with miR-600 mimic, the cells exhibited significantly decreased expressions of VEGF, cyclin D1, and HIF-1α, which were all significantly up-regulated in Plasmid-HIF-1α group and miR-600 mimic+Plasmid-HIF-1α group. VEGF, cyclin D1, and HIF-1α expressions were significant higher in Plasmid-HIF-1α group than in miR-600 mimic+ Plasmid-HIF-1α group. OBJECTIVE miR-600 suppresses the proliferation of HeLa cells and down-regulate the expressions of cyclin D1 and VEGF by inhibiting HIF-1α signaling pathway.
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Affiliation(s)
- X Zhou
- Department of Obstetrics and Gynecology, Chengdu Second People's Hospital, Chengdu 610000, China
| | - J Deng
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, China
| | - W Zhang
- Department of Respiratory Medicine, First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, China
| | - J Wang
- Department of Rheumatology Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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Yang X, Zheng Y, Tan J, Tian R, Shen P, Cai W, Liao H. MiR-199a-5p-HIF-1α-STAT3 Positive Feedback Loop Contributes to the Progression of Non-Small Cell Lung Cancer. Front Cell Dev Biol 2021; 8:620615. [PMID: 33681184 PMCID: PMC7929999 DOI: 10.3389/fcell.2020.620615] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/31/2020] [Indexed: 01/27/2023] Open
Abstract
Background: Non-small cell lung cancer (NSCLC) is the most common malignancy worldwide. MiR-199a-5p has been reported to play important roles in multiple tumors, inclusive of NSCLC. However, little is definitively known pertaining to its explicit mechanism of action in NSCLC. Methods: The expressions of miR-199a-5p and hypoxia-inducible factor-1α (HIF-1α) mRNA were quantified employing qRT-PCR. H1299 and A549 cells were transiently transfected with miR-199a-5p mimics or inhibitors. Then, CCK-8 assays, flow cytometry analysis, and Transwell assay were performed for detecting cell proliferation, cell cycle, apoptosis, migration, and invasion of NSCLC cells, respectively. HIF-1α, signal transducer and activator of transcription 3 (STAT3), and p-STAT3 expressions were detected via Western blotting. Bioinformatic analysis and dual-luciferase assay were performed to investigate the interactions among miR-199a-5p, HIF-1α, and STAT3. Xenograft models were established with nude mice for further analyzing the bevacizumab resistance of NSCLC cells. Results: MiR-199a-5p expression was markedly attenuated in NSCLC tissues and cell lines. Overexpression of miR-199a-5p repressed the proliferation, migration, and invasion but induced the apoptosis of NSCLC cells. HIF-1α was identified as a direct target of miR-199a-5p. There was a positive feedback loop among miR-199a-5p, HIF-1α, and STAT3. Co-transfection of HIF-1α or STAT3 overexpression plasmids counteracted the effects of miR-199a-5p. In vivo experiments indicated that the feedback loop was in association with the bevacizumab resistance of NSCLC cells. Conclusion: MiR-199a-5p blocked the progression of NSCLC and sensitized NSCLC cells to bevacizumab by suppressing HIF-1α and STAT3, while the HIF-1α/STAT3 axis suppressed the expression of miR-199a-5p, which forms a positive feedback loop to promote the sustaining progression of NSCLC.
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Affiliation(s)
- Xingping Yang
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuzhen Zheng
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian Tan
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Renjiang Tian
- Department of Thoracic Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Piao Shen
- Department of Thoracic Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Weijie Cai
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hongying Liao
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Shao N, Song L, Sun X. Exosomal circ_PIP5K1A regulates the progression of non-small cell lung cancer and cisplatin sensitivity by miR-101/ABCC1 axis. Mol Cell Biochem 2021; 476:2253-2267. [PMID: 33570734 DOI: 10.1007/s11010-021-04083-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 01/25/2021] [Indexed: 01/16/2023]
Abstract
Circular RNAs (circRNAs) play vital roles in various types of cancer and chemosentivity. In the progression of carcinogenesis, exosomes are messengers for intercellular communication. The aim of this study was to explore the role of exosomal circRNA phosphatidylinositol-4-phosphate 5-kinase type 1 alpha (circ_PIP5K1A) in non-small cell lung cancer (NSCLC) progression and cisplatin sensitivity. The expression levels of circ_PIP5K1A, miR-101 and ATP binding cassette subfamily C member 1 (ABCC1) were detected by quantitative real-time polymerase chain reaction or western blot assay. Cell Counting Kit-8 assay was used to detect cell viability and 50% inhibitory concentration value of cisplatin. Cell migration, invasion, proliferation, and apoptosis were determined by wound healing assay, transwell assay, colony formation assay, and flow cytometry, respectively. A xenograft tumor model was established to explore the role of circ_PIP5K1A in vivo. Exosomes were detected using transmission electron microscopy analysis. The interaction between miR-101 and circ_PIP5K1A or ABCC1 was predicted by bioinformatics analysis and verified by dual-luciferase reporter assay and RNA pull-down assay. Circ_PIP5K1A and ABCC1 were overexpressed and miR-101 was downregulated in NSCLC tissues, serum samples, and cells. Knockdown of exosomal circ_PIP5K1A inhibited NSCLC cell proliferation, migration, and invasion and promoted apoptosis and cisplatin sensitivity. Likewise, circ_PIP5K1A downregulation inhibited tumor growth. MiR-101 was a direct target of circ_PIP5K1A, and its knockdown reversed the effects of circ_PIP5K1A silence on inhibition of NSCLC progression and promotion of cisplatin sensitivity. Moreover, ABCC1 was a downstream target of miR-101, and miR-101 overexpression inhibited the progression of NSCLC cells and increased cisplatin sensitivity by targeting ABCC1. Besides, circ_PIP5K1A positively regulated ABCC1 expression by sponging miR-101. Exosomal circ_PIP5K1A knockdown inhibited NSCLC progression and promoted cisplatin sensitivity by regulating miR-101/ABCC1 axis, providing a novel avenue for treatment of NSCLC.
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Affiliation(s)
- Na Shao
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwuweiqi Road, Huaiyin District, Jinan, 250021, Shandong, China
| | - Liang Song
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Xiaogang Sun
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwuweiqi Road, Huaiyin District, Jinan, 250021, Shandong, China.
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Feng B, Zhou H, Wang T, Lin X, Lai Y, Chu X, Wang R. Insights Into circRNAs: Functional Roles in Lung Cancer Management and the Potential Mechanisms. Front Cell Dev Biol 2021; 9:636913. [PMID: 33634138 PMCID: PMC7900409 DOI: 10.3389/fcell.2021.636913] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/20/2021] [Indexed: 01/17/2023] Open
Abstract
Lung cancer is the most prevalent cancer globally. It is also the leading cause of cancer-related death because of the late diagnosis and the frequent resistance to therapeutics. Therefore, it is impending to identify novel biomarkers and effective therapeutic targets to improve the clinical outcomes. Identified as a new class of RNAs, circular RNAs (circRNAs) derive from pre-mRNA back splicing with considerable stability and conservation. Accumulating research reveal that circRNAs can function as microRNA (miRNA) sponges, regulators of gene transcription and alternative splicing, as well as interact with RNA-binding proteins (RBPs), or even be translated into proteins directly. Currently, a large body of circRNAs have been demonstrated differentially expressed in physiological and pathological processes including cancer. In lung cancer, circRNAs play multiple roles in carcinogenesis, development, and response to different therapies, indicating their potential as diagnostic and prognostic biomarkers as well as novel therapeutics. In this review, we summarize the multi-faceted functions of circRNAs in lung cancer and the underlying mechanisms, together with the possible future of these discoveries in clinical application.
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Affiliation(s)
- Bing Feng
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Hao Zhou
- Department of Medical Oncology, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Ting Wang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Xinrong Lin
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Yongting Lai
- Department of Medical Oncology, Nanjing School of Clinical Medicine, Jinling Hospital, Southern Medical University, Nanjing, China
| | - Xiaoyuan Chu
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Department of Medical Oncology, Jinling Hospital, Nanjing Medical University, Nanjing, China.,Department of Medical Oncology, Nanjing School of Clinical Medicine, Jinling Hospital, Southern Medical University, Nanjing, China
| | - Rui Wang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Department of Medical Oncology, Jinling Hospital, Nanjing Medical University, Nanjing, China.,Department of Medical Oncology, Nanjing School of Clinical Medicine, Jinling Hospital, Southern Medical University, Nanjing, China
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50
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Liao W, He J, Disoma C, Hu Y, Li J, Chen G, Sheng Y, Cai X, Li C, Cheng K, Yang C, Qin Y, Han D, Wen W, Ding C, Li M. Hsa_circ_0107593 Suppresses the Progression of Cervical Cancer via Sponging hsa-miR-20a-5p/93-5p/106b-5p. Front Oncol 2021; 10:590627. [PMID: 33585208 PMCID: PMC7874083 DOI: 10.3389/fonc.2020.590627] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 11/25/2020] [Indexed: 12/29/2022] Open
Abstract
Circular RNAs (circRNAs) are a new class of single-stranded RNAs that form a continuous loop with crucial role in regulation of gene expression. Because their circular conformation conforms numerous properties, circRNAs have been investigated recently to demonstrate their important role in the development and progression of various cancers. However, the function of circRNAs and their regulatory outcomes in cervical cancer (CC) have rarely been explored. In this study, the role and molecular mechanism of hsa_circ_0107593 in cervical cancer are demonstrated. Quantitative polymerase chain reaction (qRT-PCR) was used to determine the expression of hsa_circ_0107593 and three miRNAs (hsa-miR-20a-5p, 93-5p, and 106b-5p) in paired CC tissues (tumor tissue vs. adjacent normal cervical tissue), CC cell lines, and human normal cervical epithelial immortalized cell line. A series of functional experiments were conducted to assess the function of hsa_circ_0107593 in CC development. The Receiver Operating Characteristic (ROC) curve was plotted to estimate the diagnostic value of hsa_circ_0107593 in CC. The dual-luciferase reporter assay was used to explore the interaction between hsa_circ_0107593 and hsa-miR-20a-5p/93-5p/106b-5p. Bioinformatic analysis was conducted to predict the target mRNAs, pathways, and functional enrichment. The results revealed that hsa_circ_0107593 has low expression in CC tissues and CC cell lines. Moreover, negative correlations of hsa_circ_0107593 expression were found against tumor diameter, FIGO stage, and myometrial invasion. Also, hsa_circ_0107593 impedes CC cell proliferation, migration, and invasion. Based on ROC curve analysis, hsa_circ_0107593 could serve as a diagnostic biomarker. Its low expression may indicate increased patient's risk to developing cervical cancer. Mechanistically, hsa_circ_0107593 serves as a sponge of hsa-miR-20a-5p, hsa-miR-93-5p, and hsa-miR-106b-5p. Collectively, our study implies that hsa_circ_0107593 has tumor-suppressing activity in CC by physically binding with hsa-miR-20a-5p, hsa-miR-93-5p, and hsa-miR-106b-5p.
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Affiliation(s)
- Wenyan Liao
- Reproductive Medical Center, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Department of Gynaecology and Obstetrics, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Jun He
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Cyrollah Disoma
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Yi Hu
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Junhua Li
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Guodong Chen
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Ying Sheng
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Xinyu Cai
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Chuanfu Li
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Kai Cheng
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Chunfen Yang
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Yongxi Qin
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Dong Han
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Wu Wen
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Chengming Ding
- Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Mujun Li
- Reproductive Medical Center, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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