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Lu L, Ning Y, Gu F, Lin Z, Qin Y, Feng L, Tang M, Cao Y. The circular RNA circSLC16A10 alleviates diabetic retinopathy by improving mitochondrial function via the miR-761-5p/MFN2 axis. Cell Signal 2024; 121:111283. [PMID: 38960059 DOI: 10.1016/j.cellsig.2024.111283] [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: 03/13/2024] [Revised: 06/14/2024] [Accepted: 06/29/2024] [Indexed: 07/05/2024]
Abstract
It has been demonstrated that circular RNAs (circRNAs) are associated with the development of diabetic retinopathy (DR). Nevertheless, the function of circSLC16A10 in the development of DR remains unclear. In order to investigate the role of circSLC16A10, we employed cell and animal models of DR. An analysis of a public database revealed that hsa_circSLC16A10 was expressed at lower levels in DR patients than in diabetic patients without DR or healthy controls. Additionally, the level of hsa_circSLC16A10 was lower in high glucose (HG)-exposed ARPE-19 cells and diabetic mice. hsa_circSLC16A10 was observed to be mainly distributed in the cytoplasm. Moreover, overexpression of hsa_circSLC16A10 alleviated HG-induced endoplasmic reticulum stress and cell apoptosis in vitro. Furthermore, overexpression of hsa_circSLC16A10 ameliorated HG-induced mitochondrial dysfunction, as evidenced by improvements in mitochondrial structure and function. hsa_circSLC16A10 acted as a hsa-miR-761-5p sponge to increase MFN2 expression. MFN2 knockdown or hsa-miR-761-5p overexpression partially reversed the protective effect of hsa_circSLC16A10 in vitro. The protective effect of mmu_circSLC16A10 against DR was confirmed in an animal model of DR. These findings indicate that circSLC16A10 may regulate DR progression by improving mitochondrial function via the miR-761-5p/MFN2 axis.
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Affiliation(s)
- Lu Lu
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Key Lens Research Laboratory of Liaoning Province, Shenyang, China
| | - Yuan Ning
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Key Lens Research Laboratory of Liaoning Province, Shenyang, China
| | - Feng Gu
- Department of Ophthalmology, The First Hospital of China Medical University, Shenyang, China
| | - Zhaohong Lin
- Operating Room, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Yu Qin
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Key Lens Research Laboratory of Liaoning Province, Shenyang, China
| | - Li Feng
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Key Lens Research Laboratory of Liaoning Province, Shenyang, China
| | - Mengsu Tang
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Key Lens Research Laboratory of Liaoning Province, Shenyang, China
| | - Yaming Cao
- Department of Immunology, College of Basic Medical Sciences, China Medical University, Shenyang, China.
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Tashakori N, Mikhailova MV, Mohammedali ZA, Mahdi MS, Ali Al-Nuaimi AM, Radi UK, Alfaraj AM, Kiasari BA. Circular RNAs as a novel molecular mechanism in diagnosis, prognosis, therapeutic target, and inhibiting chemoresistance in breast cancer. Pathol Res Pract 2024; 263:155569. [PMID: 39236498 DOI: 10.1016/j.prp.2024.155569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 08/21/2024] [Accepted: 08/28/2024] [Indexed: 09/07/2024]
Abstract
Breast cancer (BC) is the most common cancer among women, characterized by significant heterogeneity. Diagnosis of the disease in the early stages and appropriate treatment plays a crucial role for these patients. Despite the available treatments, many patients due to drug resistance do not receive proper treatments. Recently, circular RNAs (circRNAs), a type of non-coding RNAs (ncRNAs), have been discovered to be involved in the progression and resistance to drugs in BC. CircRNAs can promote or inhibit malignant cells by their function. Numerous circRNAs have been discovered to be involved in the proliferation, invasion, and migration of tumor cells, as well as the progression, pathogenesis, tumor metastasis, and drug resistance of BC. Circular RNAs can also serve as a biomarker for diagnosing, predicting prognosis, and targeting therapy. In this review, we present an outline of the variations in circRNAs expression in various BCs, the functional pathways, their impact on the condition, and their uses in clinical applications.
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Affiliation(s)
- Nafiseh Tashakori
- Department of Medicine, Faculty of Internal Medicine,Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Maria V Mikhailova
- Department of Prosthetic Dentistry, I.M. Schenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | | | | | | | - Usama Kadem Radi
- Collage of Pharmacy, National University of Science and Technology, Dhi Qar 64001, Iraq
| | | | - Bahman Abedi Kiasari
- Microbiology & Immunology Group, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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Xu A, Zhu L, Yao C, Zhou W, Guan Z. The therapeutic potential of circular RNA in triple-negative breast cancer. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2024; 7:13. [PMID: 38835343 PMCID: PMC11149105 DOI: 10.20517/cdr.2023.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 06/06/2024]
Abstract
Triple-negative breast cancer (TNBC) is among the most aggressive subtypes of the disease that does not express estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2. Circular RNAs (circRNAs) are a type of non-coding RNA with a circular shape formed by non-standard splicing or reverse splicing. Numerous circRNAs exhibit abnormal expression in various malignancies, showing their critical role in the emergence and growth of tumors. Recent studies have shown evidence supporting the idea that certain circRNAs regulate the proliferation and metastasis of TNBC. In addition, circRNAs alter metabolism and the immune microenvironment to promote or inhibit the development of TNBC. Notably, circRNAs may affect the efficacy of clinical drug therapy, serve as therapeutic targets, and be used as molecular biomarkers in the future. Herein, we will first summarize the biogenesis and function of circRNAs. Then, we will explain current research on circRNAs related to TNBC and their potential to serve as therapeutic targets or biomarkers for future drug development, providing a new direction and idea for TNBC therapy.
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Affiliation(s)
- Aiqi Xu
- Department of Breast Oncology, School of Medicine, South China University of Technology, Guangzhou 510006, Guangdong, China
- Authors contributed equally
| | - Lewei Zhu
- Department of Breast Surgery, The First People's Hospital of Foshan, Foshan 528000, Guangdong, China
- Authors contributed equally
| | - Chengcai Yao
- The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan 528200, Guangdong, China
| | - Wen Zhou
- The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan 528200, Guangdong, China
| | - Ziyun Guan
- The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan 528200, Guangdong, China
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Bao H, Li J, Zhao Q, Yang Q, Xu Y. Circular RNAs in Breast Cancer: An Update. Biomolecules 2024; 14:158. [PMID: 38397395 PMCID: PMC10887059 DOI: 10.3390/biom14020158] [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: 12/14/2023] [Revised: 01/14/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
Breast cancer (BC), characterized by high heterogeneity, is the most commonly reported malignancy among females across the globe. Every year, many BC patients die owing to delayed diagnosis and treatment. Increasing researches have indicated that aberrantly expressed circular RNAs (circRNAs) are implicated in the tumorigenesis and progression of various tumors, including BC. Hence, this article provides a summary of the biogenesis and functions of circRNAs, as well as an examination of how circRNAs regulate the progression of BC. Moreover, circRNAs have aroused incremental attention as potential diagnostic and prognostic biomarkers for BC. Exosomes enriched with circRNAs can be secreted into the tumor microenvironment to mediate intercellular communication, affecting the progression of BC. Detecting the expression levels of exosomal circRNAs may provide reference for BC diagnosis and prognosis prediction. Illuminating insights into the earlier diagnosis and better treatment regimens of BC will be potentially available following elucidation of deeper regulatory mechanisms of circRNAs in this malignancy.
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Affiliation(s)
- Haolin Bao
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Jiehan Li
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Qihang Zhao
- Department of Mammary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Qingling Yang
- Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, Bengbu 233030, China
| | - Yi Xu
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
- Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, Bengbu 233030, China
- State Key Laboratory of Oncology in South China, Cancer Center of Sun Yat-Sen University, Guangzhou 510060, China
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR 999077, China
- Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Wang H, Shan X, Peng Y, Zhou W. Circular RNAs in the chemoresistance of triple-negative breast cancer: A systematic review. Drug Dev Res 2023; 84:805-814. [PMID: 37114737 DOI: 10.1002/ddr.22069] [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: 10/08/2022] [Revised: 03/09/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023]
Abstract
This study aims to assess studies on circular RNAs (circRNAs) in the chemoresistance of triple-negative breast cancer (TNBC) and provide relevant references for the development of new TNBC chemotherapy sensitivity biomarkers and therapeutic targets. The PubMed, Embase, Web of Knowledge, Cochrane Library, and four Chinese databases were searched up to January 27, 2023, and studies related to TNBC chemoresistance were included. The basic characteristics of the studies and the mechanisms of circRNAs in regulating TNBC chemoresistance were analyzed. A total of 28 studies published between 2018 and 2023 were included, and the chemotherapeutics included adriamycin, paclitaxel, docetaxel, 5-fluorouracil, lapatinib, and so forth. A total of 30 circRNAs were identified, 86.67% (n = 26) of these circRNAs were reported to act as microRNA (miRNA) sponges to regulate chemotherapy sensitivity, while only two circRNAs (circRNA-MTO1 and circRNA-CREIT) interacted with proteins. A total of 14, 12, and 2 circRNAs were reported to be associated with chemoresistance to adriamycin, taxanes, and 5-fluorouracil, respectively. Six circRNAs were found to act as miRNA sponges that promote chemotherapy resistance by regulating the PI3K/Akt signalling pathway. CircRNAs participate in the regulation of TNBC chemoresistance and can be used as biomarkers and therapeutic targets for improving chemotherapy sensitivity. However, further studies are needed to confirm the role of circRNAs in TNBC chemoresistance.
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Affiliation(s)
- Hongmei Wang
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Drug Metabolism, Chongqing Medical University, Chongqing, China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
- Department of Pharmacy, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xuefeng Shan
- Department of Pharmacy, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yang Peng
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Weiying Zhou
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Drug Metabolism, Chongqing Medical University, Chongqing, China
- Key Laboratory for Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
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