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Fang L, Zhu Z, Han M, Li S, Kong X, Yang L. Unlocking the potential of extracellular vesicle circRNAs in breast cancer: From molecular mechanisms to therapeutic horizons. Biomed Pharmacother 2024; 180:117480. [PMID: 39357330 DOI: 10.1016/j.biopha.2024.117480] [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: 07/30/2024] [Revised: 09/17/2024] [Accepted: 09/20/2024] [Indexed: 10/04/2024] Open
Abstract
Breast cancer remains the leading cause of cancer-related morbidity and mortality among women worldwide, underscoring the urgent need for novel diagnostic and therapeutic strategies. This review explores the emerging roles of circular RNAs (circRNAs) within extracellular vesicles (exosomes) in breast cancer. circRNAs, known for their stability and tissue-specific expression, are aberrantly expressed in breast cancer and regulate critical cellular processes such as proliferation, migration, and apoptosis, positioning them as promising biomarkers. Exosomes facilitate intercellular communication by delivering circRNAs, reflecting the physiological and pathological state of their source cells. This review highlights the multifaceted roles of exosomal circRNAs in promoting tumor growth, metastasis, and drug resistance through their modulation of tumor metabolism, the tumor microenvironment, and immune responses. In particular, we emphasize their contributions to chemotherapy resistance and their potential as both diagnostic markers and therapeutic targets. By synthesizing current research, this review provides novel insights into the clinical applications of exosomal circRNAs, offering a foundation for future studies aimed at improving breast cancer management through non-invasive diagnostics and targeted therapies.
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Affiliation(s)
- Lijuan Fang
- Department of Laboratory Medicine, Hangzhou Ninth People's Hospital, Hangzhou, Zhejaing Province 311200, China
| | - Zehua Zhu
- Department of Laboratory Medicine, Hangzhou Ninth People's Hospital, Hangzhou, Zhejaing Province 311200, China
| | - Mingyue Han
- Department of Laboratory Medicine, Hangzhou Ninth People's Hospital, Hangzhou, Zhejaing Province 311200, China
| | - Shaojie Li
- Department of Laboratory Medicine, Hangzhou Ninth People's Hospital, Hangzhou, Zhejaing Province 311200, China
| | - Xiangyi Kong
- Department of Breast Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Lusen Yang
- Department of Laboratory Medicine, Hangzhou Ninth People's Hospital, Hangzhou, Zhejaing Province 311200, China.
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2
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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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3
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Li F, Fu H, Zeng L, Liu P. CIRCVMA21-RELATED PATHWAY ALLEVIATES LIPOPOLYSACCHARIDE-INDUCED HK-2 CELL INJURY. Shock 2024; 62:119-126. [PMID: 38662613 DOI: 10.1097/shk.0000000000002364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
ABSTRACT Background : It is reported that circVMA21 has an inhibition effect on sepsis-induced acute kidney injury (AKI). Therefore, the underlying molecular mechanisms of circVMA21 in AKI are worthy of further investigation. Material and Methods : Lipopolysaccharide (LPS) was used to induce HK2 cell injury. CircVMA21, miR-337-3p and ZEB2 expression was tested by qRT-PCR. Cell growth was detected by CCK8 assay, EdU assay, and flow cytometry. Protein levels were examined by western blot. The levels of inflammatory factors and oxidative stress markers were measured to evaluate cell inflammatory response and oxidative stress. RNA relationship as verified by dual-luciferase reporter assay, RIP assay, and RNA pull-down assay. Results : CircVMA21 had decreased expression in AKI patients. Overexpressed circVMA21 alleviated LPS-induced HK2 cell inflammation, apoptosis, and oxidative stress. Moreover, circVMA21 sponged miR-337-3p, and miR-337-3p targeted ZEB2. The inhibitory effect of circVMA21 on LPS-induced HK2 cell injury was reversed by miR-337-3p overexpression, and ZEB2 overexpression abolished the promotion effect of miR-337-3p on LPS-induced HK2 cell injury. Conclusions : CircVMA21 could inhibit LPS-induced HK2 cell injury via miR-337-3p/ZEB2 axis.
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Affiliation(s)
- Fuzhu Li
- The First Affiliated Hospital, Department of Neurosurgical Intensive Care Unit, Hengyang Medical School, University of South China, Hengyang, China
| | - Hongyun Fu
- The First Affiliated Hospital, Department of Docimasiology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Linna Zeng
- Department of Endocrinology, The Third People's Hospital of Yongzhou City, Yongzhou City, China
| | - Pingping Liu
- The First Affiliated Hospital, Department of Emergency, Hengyang Medical School, University of South China, Hengyang, China
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4
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Almalki WH, Almujri SS. The dual roles of circRNAs in Wnt/β-Catenin signaling and cancer progression. Pathol Res Pract 2024; 255:155132. [PMID: 38335783 DOI: 10.1016/j.prp.2024.155132] [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: 12/06/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 02/12/2024]
Abstract
Cancer, a complex pathophysiological condition, arises from the abnormal proliferation and survival of cells due to genetic mutations. Dysregulation of cell cycle control, apoptosis, and genomic stability contribute to uncontrolled growth and metastasis. Tumor heterogeneity, microenvironmental influences, and immune evasion further complicate cancer dynamics. The intricate interplay between circular RNAs (circRNAs) and the Wnt/β-Catenin signalling pathway has emerged as a pivotal axis in the landscape of cancer biology. The Wnt/β-Catenin pathway, a critical regulator of cell fate and proliferation, is frequently dysregulated in various cancers. CircRNAs, a class of non-coding RNAs with closed-loop structures, have garnered increasing attention for their diverse regulatory functions. This review systematically explores the intricate crosstalk between circRNAs and the Wnt/β-Catenin pathway, shedding light on their collective impact on cancer initiation and progression. The review explores the diverse mechanisms through which circRNAs modulate the Wnt/β-Catenin pathway, including sponging microRNAs, interacting with RNA-binding proteins, and influencing the expression of key components in the pathway. Furthermore, the review highlights specific circRNAs implicated in various cancer types, elucidating their roles as either oncogenic or tumour-suppressive players in the context of Wnt/β-Catenin signaling. The intricate regulatory networks formed by circRNAs in conjunction with the Wnt/β-Catenin pathway are discussed, providing insights into potential therapeutic targets and diagnostic biomarkers. This comprehensive review delves into the multifaceted roles of circRNAs in orchestrating tumorigenesis through their regulatory influence on the Wnt/β-Catenin pathway.
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Affiliation(s)
- Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia.
| | - Salem Salman Almujri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 61421, Aseer, Saudi Arabia
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5
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Kamali MJ, Salehi M, Mostafavi M, Morovatshoar R, Akbari M, Latifi N, Barzegari O, Ghadimi F, Daraei A. Hijacking and rewiring of host CircRNA/miRNA/mRNA competitive endogenous RNA (ceRNA) regulatory networks by oncoviruses during development of viral cancers. Rev Med Virol 2024; 34:e2530. [PMID: 38517354 DOI: 10.1002/rmv.2530] [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: 11/17/2023] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024]
Abstract
A significant portion of human cancers are caused by oncoviruses (12%-25%). Oncoviruses employ various strategies to promote their replication and induce tumourigenesis in host cells, one of which involves modifying the gene expression patterns of the host cells, leading to the rewiring of genes and resulting in significant changes in cellular processes and signalling pathways. In recent studies, a specific mode of gene regulation known as circular RNA (circRNA)-mediated competing endogenous RNA (ceRNA) networks has emerged as a key player in this context. CircRNAs, a class of non-coding RNA molecules, can interact with other RNA molecules, such as mRNAs and microRNAs (miRNAs), through a process known as ceRNA crosstalk. This interaction occurs when circRNAs, acting as sponges, sequester miRNAs, thereby preventing them from binding to their target mRNAs and modulating their expression. By rewiring the host cell genome, oncoviruses have the ability to manipulate the expression and activity of circRNAs, thereby influencing the ceRNA networks that can profoundly impact cellular processes such as cell proliferation, differentiation, apoptosis, and immune responses. This review focuses on a comprehensive evaluation of the latest findings on the involvement of virus-induced reprogramming of host circRNA-mediated ceRNA networks in the development and pathophysiology of human viral cancers, including cervical cancer, gastric cancer, nasopharyngeal carcinoma, Kaposi's sarcoma, hepatocellular carcinoma, and diffuse large B cell lymphoma. Understanding these mechanisms can improve our knowledge of how oncoviruses contribute to human tumourigenesis and identify potential targets for developing optimised therapies and diagnostic tools for viral cancers.
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Affiliation(s)
- Mohammad Javad Kamali
- Department of Medical Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Salehi
- Department of Medical Genetics, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mehrnaz Mostafavi
- Department of Physics, Faculty of Allied Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Morovatshoar
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mitra Akbari
- Eye Department, Eye Research Center, Amiralmomenin Hospital, School of Medicine, Guilan University of Medical Science, Rasht, Iran
| | - Narges Latifi
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Omid Barzegari
- Department of Medical Genetics, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Fatemeh Ghadimi
- Department of Medical Genetics, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abdolreza Daraei
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
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6
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Kansara S, Singh A, Badal AK, Rani R, Baligar P, Garg M, Pandey AK. The emerging regulatory roles of non-coding RNAs associated with glucose metabolism in breast cancer. Semin Cancer Biol 2023; 95:1-12. [PMID: 37364663 DOI: 10.1016/j.semcancer.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 04/20/2023] [Accepted: 06/20/2023] [Indexed: 06/28/2023]
Abstract
Altered energy metabolism is one of the hallmarks of tumorigenesis and essential for fulfilling the high demand for metabolic energy in a tumor through accelerating glycolysis and reprogramming the glycolysis metabolism through the Warburg effect. The dysregulated glucose metabolic pathways are coordinated not only by proteins coding genes but also by non-coding RNAs (ncRNAs) during the initiation and cancer progression. The ncRNAs are responsible for regulating numerous cellular processes under developmental and pathological conditions. Recent studies have shown that various ncRNAs such as microRNAs, circular RNAs, and long noncoding RNAs are extensively involved in rewriting glucose metabolism in human cancers. In this review, we demonstrated the role of ncRNAs in the progression of breast cancer with a focus on outlining the aberrant expression of glucose metabolic pathways. Moreover, we have discussed the existing and probable future applications of ncRNAs to regulate energy pathways along with their importance in the prognosis, diagnosis, and future therapeutics for human breast carcinoma.
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Affiliation(s)
- Samarth Kansara
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
| | - Agrata Singh
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
| | - Abhishesh Kumar Badal
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
| | - Reshma Rani
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 201313, India
| | - Prakash Baligar
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University, Sector-125, Noida 201313, India
| | - Manoj Garg
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University, Sector-125, Noida 201313, India
| | - Amit Kumar Pandey
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India; National Institute of Pharmaceutical Education and Research, Ahmedabad, Palaj, Gandhinagar 382355, Gujarat, India.
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7
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Taheriazam A, Bayanzadeh SD, Heydari Farahani M, Mojtabavi S, Zandieh MA, Gholami S, Heydargoy MH, Jamali Hondori M, Kangarloo Z, Behroozaghdam M, Khorrami R, Sheikh Beig Goharrizi MA, Salimimoghadam S, Rashidi M, Hushmandi K, Entezari M, Hashemi M. Non-coding RNA-based therapeutics in cancer therapy: An emphasis on Wnt/β-catenin control. Eur J Pharmacol 2023; 951:175781. [PMID: 37179043 DOI: 10.1016/j.ejphar.2023.175781] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/22/2023] [Accepted: 05/10/2023] [Indexed: 05/15/2023]
Abstract
Non-coding RNA transcripts are RNA molecules that have mainly regulatory functions and they do not encode proteins. microRNAs (miRNAs), lncRNAs and circRNAs are major types of this family and these epigenetic factors participate in disease pathogenesis, especially cancer that their abnormal expression may lead to cancer progression. miRNAs and lncRNAs possess a linear structure, whereas circRNAs possess ring structures and high stability. Wnt/β-catenin is an important factor in cancer with oncogenic function and it can increase growth, invasion and therapy resistance in tumors. Wnt upregulation occurs upon transfer of β-catenin to nucleus. Interaction of ncRNAs with Wnt/β-catenin signaling can determine tumorigenesis. Wnt upregulation is observed in cancers and miRNAs are able to bind to 3'-UTR of Wnt to reduce its level. LncRNAs can directly/indirectly regulate Wnt and in indirect manner, lncRNAs sponge miRNAs. CircRNAs are new emerging regulators of Wnt and by its stimulation, they increase tumor progression. CircRNA/miRNA axis can affect Wnt and carcinogenesis. Overall, interaction of ncRNAs with Wnt can determine proliferation rate, migration ability and therapy response of cancers. Furthermore, ncRNA/Wnt/β-catenin axis can be utilized as biomarker in cancer and for prognostic applications in patients.
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Affiliation(s)
- Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Melika Heydari Farahani
- Faculty of Veterinary Medicine, Islamic Azad University, Shahr-e Kord Branch, Chaharmahal and Bakhtiari, Iran
| | - Sarah Mojtabavi
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Mohammad Arad Zandieh
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Sadaf Gholami
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Hossein Heydargoy
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Microbiology, Shahr-e Ghods Branch, Azad Islamic University, Tehran, Iran
| | - Maryam Jamali Hondori
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Zahra Kangarloo
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mitra Behroozaghdam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ramin Khorrami
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | | | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, 4815733971, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, 4815733971, Iran.
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Maliheh Entezari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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8
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Zhang H, Wang X, Li Y, Bai Y, Li Q, Wang S, Wei Y, Li J, Wen S, Zhao W. The hsa_circ_0000276-ceRNA regulatory network and immune infiltration in cervical cancer. BMC Cancer 2023; 23:222. [PMID: 36894874 PMCID: PMC9999601 DOI: 10.1186/s12885-023-10636-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 02/13/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Our previous studies have confirmed that miR-154-5p can regulate pRb expression, and thus, play a tumor suppressor role in HPV16 E7-induced cervical cancer. However, its upstream molecules have not been elucidated in the progression of cervical cancer. This study aimed to explore the role of the miR-154-5p upstream molecule, hsa_circ_0000276 in cervical cancer development and its possible mechanisms of action. METHODS We detected differences in whole transcriptome expression profiles of cervical squamous carcinoma and tissues adjacent to cervical cancer tissues from patients using microarray technology to predict circular RNAs (circRNAs) with binding sites to miR-154-5p. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used to detect the expression of hsa_circ_0000276 (which had the strongest binding capacity to miR-154 and was selected as the target molecule) in cervical cancer tissues, followed by in vitro functional assays. Downstream microRNAs (miRNAs) and mRNAs of hsa_circ_0000276 were identified using transcriptome microarray data and databases, while the protein-protein interaction networks were obtained using STRING. A competing endogenous RNA (ceRNA) network centered on hsa_circ_0000276 was constructed using Cytoscape and GO and KEGG databases. Abnormal expression and prognosis of critical downstream molecules were analyzed using gene databases and molecular experiments. qRT-PCR and western blot analysis was performed to verify the expression of candidate genes. RESULTS We identified 4,001 differentially expressed circRNAs between HPV16-positive cervical squamous carcinoma and benign cervical tissues and 760 circRNAs targeting miR-154-5p, including hsa_circ_0000276. hsa_circ_0000276 and miR-154-5p directly bound, and hsa_circ_0000276 was upregulated, in cervical precancerous lesions and cervical cancer tissues and cells. Silencing hsa_circ_0000276 inhibited G1/S transition and cell proliferation and promoted apoptosis in SiHa and CaSki cells. Bioinformatics analysis showed that the hsa_circ_0000276 ceRNA network included 17 miRNAs and seven mRNAs, and downstream molecules of hsa_circ_0000276 were upregulated in cervical cancer tissues. These downstream molecules were associated with a poor prognosis and affected cervical cancer-associated immune infiltration. Of these, expression of CD47, LDHA, PDIA3, and SLC16A1 was downregulated in sh_hsa_circ_0000276 cells. CONCLUSIONS Our findings show that hsa_circ_0000276 exerts cancer-promoting effects in cervical cancer and is an underlying biomarker for cervical squamous cell carcinoma.
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Affiliation(s)
- Honglei Zhang
- Pathology and Pathophysiology Department, Basic Medical College, Shanxi Medical University, Taiyuan, 030001, China
| | - Xiuting Wang
- Biochemistry and Molecular Biology Department, Basic Medical College, Shanxi Medical University, Taiyuan, 030001, China
| | - Yaqin Li
- The Second Clinical Medical College, Shanxi Medical University, Taiyuan, 030001, China
| | - Ying Bai
- The Second Clinical Medical College, Shanxi Medical University, Taiyuan, 030001, China
| | - Qi Li
- The Second Clinical Medical College, Shanxi Medical University, Taiyuan, 030001, China
| | - Shuling Wang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China
| | - Yimiao Wei
- The Second Clinical Medical College, Shanxi Medical University, Taiyuan, 030001, China
| | - Jiarong Li
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, 030001, China
| | - Songquan Wen
- The Second Clinical Medical College, Shanxi Medical University, Taiyuan, 030001, China
| | - Weihong Zhao
- Department of Obstetrics and Gynecology, The Second Hospital of Shanxi Medical University, Taiyuan, 030001, China.
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9
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Hussen BM, Mohamadtahr S, Abdullah SR, Hidayat HJ, Rasul MF, Hama Faraj GS, Ghafouri-Fard S, Taheri M, Khayamzadeh M, Jamali E. Exosomal circular RNAs: New player in breast cancer progression and therapeutic targets. Front Genet 2023; 14:1126944. [PMID: 36926585 PMCID: PMC10011470 DOI: 10.3389/fgene.2023.1126944] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
Breast cancer is the most prevalent type of malignancy among women. Exosomes are extracellular vesicles of cell membrane origin that are released via exocytosis. Their cargo contains lipids, proteins, DNA, and different forms of RNA, including circular RNAs. Circular RNAs are new class of non-coding RNAs with a closed-loop shape involved in several types of cancer, including breast cancer. Exosomes contained a lot of circRNAs which are called exosomal circRNAs. By interfering with several biological pathways, exosomal circRNAs can have either a proliferative or suppressive role in cancer. The involvement of exosomal circRNAs in breast cancer has been studied with consideration to tumor development and progression as well as its effects on therapeutic resistance. However, its exact mechanism is still unclear, and there have not been available clinical implications of exo-circRNAs in breast cancer. Here, we highlight the role of exosomal circRNAs in breast cancer progression and to highlight the most recent development and potential of circRNAas therapeutic targets and diagnostics for breast cancer.
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Affiliation(s)
- Bashdar Mahmud Hussen
- Department of Medical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Iraq.,Center of Research and Strategic Studies, Lebanese French University, Erbil, Iraq
| | - Sayran Mohamadtahr
- Department of Medical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | | | - Hazha Jamal Hidayat
- Department of Biology, College of Education, Salahaddin University-Erbil, Erbil, Iraq
| | - Mohammad Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Iraq
| | - Goran Sedeeq Hama Faraj
- Department of Medical Laboratory Science, Komar University of Science and Technology, Sulaimany, Iraq
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany.,Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Khayamzadeh
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Academy of Medical Sciences, Tehran, Iran
| | - Elena Jamali
- Department of Pathology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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10
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Ye R, Lu X, Liu J, Duan Q, Xiao J, Duan X, Yue Z, Liu F. CircSOD2 Contributes to Tumor Progression, Immune Evasion and Anti-PD-1 Resistance in Hepatocellular Carcinoma by Targeting miR-497-5p/ANXA11 Axis. Biochem Genet 2022; 61:597-614. [PMID: 36008700 DOI: 10.1007/s10528-022-10273-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 06/22/2022] [Indexed: 11/25/2022]
Abstract
Circular RNAs (circRNAs) can function as functional molecules in hepatocellular carcinoma (HCC). Herein, circRNA superoxide dismutase 2 (circSOD2) was researched in HCC progression and immune system. The real-time polymerase chain reaction (qRT-PCR) was used for quantification of circSOD2, microRNA-497-5p (miR-497-5p) and Annexin A11 (ANXA11). Cell assays were performed by 3-(4, 5-dimethylthiazol-2-y1)-2, 5-diphenyl tetrazolium bromide (MTT) and colony formation assays for proliferation, flow cytometry for apoptosis and cell cycle, wound healing assay for migration and transwell assay for migration/invasion. ANXA11 and metastatic protein levels were measured by western blot. Dual-luciferase reporter and RNA immunoprecipitation (RIP) assays were performed to analyze target binding. CD8+ T cell immunity was assessed by Immunohistochemistry (IHC) assay, and the effect of circSOD2 on programmed cell death 1 (PD-1) immune checkpoint inhibitors (anti-PD-1) therapy was evaluated by mice xenograft assay. CircSOD2 was upregulated in HCC tissues and cells. Knockdown of circSOD2 resulted in HCC cell growth inhibition, apoptosis promotion, cell cycle arrest and metastasis suppression. Mechanically, circSOD2 promoted HCC development by acting as a miR-497-5p sponge and miR-497-5p played a tumor-inhibitory role in HCC cells by targeting ANXA11. Moreover, circSOD2 induced upregulation of ANXA11 expression by interacting with miR-497-5p. Also, the promoting effects of circSOD2 on immune evasion and anti-PD-1 resistance were related to miR-497-5p/ANXA11 axis. This study elucidated the pivotal function of circSOD2 in HCC progression and immunosuppression by mediating miR-497-6p/ANXA11 axis. CircSOD2/miR-497-5p/ANXA11 axis was a novel view of circRNA research in HCC.
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Affiliation(s)
- Rong Ye
- Department of General Surgery 3, The First Affiliated Hospital of Gannan Medical University, No. 128 Jinling Road, Jingkai District, Ganzhou, 341000, China
| | - Xingyu Lu
- Outpatient department, Ganzhou City Third People's Hospital, Ganzhou, 341001, China
| | - Jianping Liu
- Department of General Surgery 3, The First Affiliated Hospital of Gannan Medical University, No. 128 Jinling Road, Jingkai District, Ganzhou, 341000, China
| | - Qing Duan
- Department of General Surgery 3, The First Affiliated Hospital of Gannan Medical University, No. 128 Jinling Road, Jingkai District, Ganzhou, 341000, China
| | - Junqi Xiao
- Department of General Surgery 3, The First Affiliated Hospital of Gannan Medical University, No. 128 Jinling Road, Jingkai District, Ganzhou, 341000, China
| | - Xunhong Duan
- Department of General Surgery 3, The First Affiliated Hospital of Gannan Medical University, No. 128 Jinling Road, Jingkai District, Ganzhou, 341000, China
| | - Zhibiao Yue
- Department of General Surgery 3, The First Affiliated Hospital of Gannan Medical University, No. 128 Jinling Road, Jingkai District, Ganzhou, 341000, China.
| | - Fengen Liu
- Department of General Surgery 3, The First Affiliated Hospital of Gannan Medical University, No. 128 Jinling Road, Jingkai District, Ganzhou, 341000, China.
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11
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Kan B, Yan G, Shao Y, Zhang Z, Xue H. CircRNA RNF10 inhibits tumorigenicity by targeting miR-942-5p/GOLIM4 axis in breast cancer. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2022; 63:362-372. [PMID: 36054164 DOI: 10.1002/em.22506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 08/04/2022] [Accepted: 08/28/2022] [Indexed: 05/12/2023]
Abstract
We aimed to explore the action of a circRNA produced by ring finger protein 10 (circ_RNF10; hsa_circ_0028899) in the malignant behaviors of breast cancer (BC) and to explore its potential action-of-mechanism. The levels of circ_RNF10, miR-942-5p and Golgi integral membrane protein 4 (GOLIM4) were measured through quantitative real-time polymerase chain reaction, western blot, or immunohistochemistry, and the competing endogenous RNA (ceRNA) relationship among them was verified by dual-luciferase reporter assay. Cell counting kit-8, 5-ethynyl-2'-deoxyuridine, and colony formation assays, transwell assays, and flow cytometry were used to examine cell proliferation, migration and invasion, and apoptosis, respectively. Levels of proliferation and invasion-related markers were determined by western blot. Xenograft assay was performed to assess tumor growth. Circ_RNF10 level was significantly reduced in BC tissues and cells. Elevation of circ_RNF10 blocked BC cell proliferation, migration and invasion while promoted the apoptosis in vitro, companied with decreased PCNA and Twist1 and increased E-cadherin. Furthermore, upregulating circ_RNF10 delayed tumor growth of BC cells in nude mice. Mechanistically, circ_RNF10 acted as a ceRNA for miR-942-5p, and miR-942-5p could target GOLIM4. In addition, miR-942-5p overexpression reversed the influence of circ_RNF10 overexpression on BC progression. Furthermore, GOLIM4 silencing attenuated the inhibitory effect of miR-942-5p knockdown on BC progression. We found that circ_RNF10 suppressed BC malignant behavior by targeting miR-942-5p/GOLIM4 axis.
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Affiliation(s)
- Binghua Kan
- Surgical Oncology, Hanzhong Central Hospital, Hanzhong, China
| | - Guiru Yan
- Surgical Oncology, Hanzhong Central Hospital, Hanzhong, China
| | - Yuan Shao
- Surgical Oncology, Hanzhong Central Hospital, Hanzhong, China
| | - Ziliang Zhang
- Surgical Oncology, Hanzhong Central Hospital, Hanzhong, China
| | - Hui Xue
- Oncology Department, Hanzhong Central Hospital, Hanzhong, China
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12
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Xue C, Li G, Zheng Q, Gu X, Bao Z, Lu J, Li L. The functional roles of the circRNA/Wnt axis in cancer. Mol Cancer 2022; 21:108. [PMID: 35513849 PMCID: PMC9074313 DOI: 10.1186/s12943-022-01582-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/22/2022] [Indexed: 01/09/2023] Open
Abstract
CircRNAs, covalently closed noncoding RNAs, are widely expressed in a wide range of species ranging from viruses to plants to mammals. CircRNAs were enriched in the Wnt pathway. Aberrant Wnt pathway activation is involved in the development of various types of cancers. Accumulating evidence indicates that the circRNA/Wnt axis modulates the expression of cancer-associated genes and then regulates cancer progression. Wnt pathway-related circRNA expression is obviously associated with many clinical characteristics. CircRNAs could regulate cell biological functions by interacting with the Wnt pathway. Moreover, Wnt pathway-related circRNAs are promising potential biomarkers for cancer diagnosis, prognosis evaluation, and treatment. In our review, we summarized the recent research progress on the role and clinical application of Wnt pathway-related circRNAs in tumorigenesis and progression.
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Affiliation(s)
- Chen Xue
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, National Clinical Research Center for Infectious Diseases, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, 310003 Hangzhou, China
| | - Ganglei Li
- grid.13402.340000 0004 1759 700XDepartment of Neurosurgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 310003 Hangzhou, China
| | - Qiuxian Zheng
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, National Clinical Research Center for Infectious Diseases, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, 310003 Hangzhou, China
| | - Xinyu Gu
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, National Clinical Research Center for Infectious Diseases, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, 310003 Hangzhou, China
| | - Zhengyi Bao
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, National Clinical Research Center for Infectious Diseases, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, 310003 Hangzhou, China
| | - Juan Lu
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, National Clinical Research Center for Infectious Diseases, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, 310003 Hangzhou, China
| | - Lanjuan Li
- grid.13402.340000 0004 1759 700XState Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, National Clinical Research Center for Infectious Diseases, Zhejiang University, No. 79 Qingchun Road, Shangcheng District, 310003 Hangzhou, China
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13
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Huang J, Yu S, Ding L, Ma L, Chen H, Zhou H, Zou Y, Yu M, Lin J, Cui Q. The Dual Role of Circular RNAs as miRNA Sponges in Breast Cancer and Colon Cancer. Biomedicines 2021; 9:biomedicines9111590. [PMID: 34829818 PMCID: PMC8615412 DOI: 10.3390/biomedicines9111590] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/13/2021] [Accepted: 10/27/2021] [Indexed: 02/07/2023] Open
Abstract
Breast cancer (BC) and colon cancer (CRC) are the two most deadly cancers in the world. These cancers partly share the same genetic background and are partially regulated by the same genes. The outcomes of traditional chemoradiotherapy and surgery remain suboptimal, with high postoperative recurrence and a low survival rate. It is, therefore, urgent to innovate and improve the existing treatment measures. Many studies primarily reported that the microRNA (miRNA) sponge functions of circular RNA (circRNA) in BC and CRC have an indirect relationship between the circRNA–miRNA axis and malignant behaviors. With a covalent ring structure, circRNAs can regulate the expression of target genes in multiple ways, especially by acting as miRNA sponges. Therefore, this review mainly focuses on the roles of circRNAs as miRNA sponges in BC and CRC based on studies over the last three years, thus providing a theoretical reference for finding new therapeutic targets in the future.
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Affiliation(s)
- Jiashu Huang
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Shenghao Yu
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Lei Ding
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Lingyuan Ma
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Hongjian Chen
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Hui Zhou
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Yayan Zou
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Min Yu
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Jie Lin
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
| | - Qinghua Cui
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (J.H.); (S.Y.); (L.D.); (L.M.); (H.C.); (H.Z.); (Y.Z.); (M.Y.); (J.L.)
- Key Lab of Molecular Cancer Biology, Yunnan Education Department, Kunming 650091, China
- Correspondence: ; Tel.: +86-871-65031412
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14
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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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15
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Xu J, Chen X, Sun Y, Shi Y, Teng F, Lv M, Liu C, Jia X. The Regulation Network and Clinical Significance of Circular RNAs in Breast Cancer. Front Oncol 2021; 11:691317. [PMID: 34307155 PMCID: PMC8299466 DOI: 10.3389/fonc.2021.691317] [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: 04/06/2021] [Accepted: 06/23/2021] [Indexed: 12/31/2022] Open
Abstract
Breast cancer is one of the most common malignant tumors in women worldwide. Circular RNA (circRNA) is a class of structurally stable non-coding RNA with a covalently closed circular structure. In recent years, with the development of high-throughput RNA sequencing, many circRNAs have been discovered and have proven to be clinically significant in the development and progression of breast cancer. Importantly, several regulators of circRNA biogenesis have been discovered. Here, we systematically summarize recent progress regarding the network of regulation governing the biogenesis, degradation, and distribution of circRNAs, and we comprehensively analyze the functions, mechanisms, and clinical significance of circRNA in breast cancer.
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Affiliation(s)
- Juan Xu
- Deparment of Gynecology, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Xiyi Chen
- Deparment of Gynecology, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Yu Sun
- Deparment of Gynecology, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Yaqian Shi
- Deparment of Gynecology, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Fang Teng
- Deparment of Gynecology, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Mingming Lv
- Department of Breast, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Chen Liu
- Department of Medical Genetics, Nanjing Medical University, Nanjing, China
| | - Xuemei Jia
- Deparment of Gynecology, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
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16
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Fan L, Yang J, Shen C, Wu Z, Hu H. Circ_0030586 inhibits cell proliferation and stemness in bladder cancer by inactivating the ERK signaling via miR-665/NR4A3 axis. Acta Histochem 2021; 123:151745. [PMID: 34175686 DOI: 10.1016/j.acthis.2021.151745] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/15/2021] [Accepted: 06/16/2021] [Indexed: 10/21/2022]
Abstract
Increasing evidence reveals that circular RNAs (circRNAs) serve as oncogenes or tumor suppressors in the development of various tumors including bladder cancer (BCa). In this study, we explored the function and mechanism of circ_0030586 (also named circABCC4, ATP binding cassette subfamily C member 4) in BCa. The expression of circ_0030586 was significantly decreased in BCa tissues and cells, as suggested by RT-qPCR. The circular characteristics of circ_0030586 were verified by agarose gel electrophoresis and RNase R treatment. Colony formation, 5-Ethynyl-2'-deoxyuridine and sphere formation assays revealed that overexpression of circ_0030586 suppressed BCa cell proliferation and stemness in vitro. According to xenograft experiment, circ_0030586 overexpression suppressed tumor growth in vivo. Mechanistically, RNA pulldown and luciferase reporter assays were carried out to explore the interaction between genes. Circ_0030586 served as a competing endogenous RNA (ceRNA) for hsa-miR-665 to upregulate the expression of nuclear receptor subfamily 4 group A member 3 (NR4A3) which is a downstream target gene of miR-665 in BCa. MiR-665 exhibited high expression in BCa tissues and cells while NR4A3 expression was downregulated in BCa. MiR-665 overexpression or NR4A3 silencing reversed the suppressive effect of circ_0030586 overexpression on BCa cell proliferation and stemness. Moreover, western blot analysis revealed that circ_0030586 inactivated the extracellular signal-regulated kinase (ERK) pathway by upregulating NR4A3 expression. In conclusion, circ_0030586 inhibits BCa cell proliferation and stemness by serving as a ceRNA for miR-665 to upregulate NR4A3 expression and thus inactivate the ERK signaling.
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17
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Regulation of Nuclear Factor-KappaB (NF-κB) signaling pathway by non-coding RNAs in cancer: Inhibiting or promoting carcinogenesis? Cancer Lett 2021; 509:63-80. [PMID: 33838282 DOI: 10.1016/j.canlet.2021.03.025] [Citation(s) in RCA: 167] [Impact Index Per Article: 55.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/18/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022]
Abstract
The nuclear factor-kappaB (NF-κB) signaling pathway is considered as a potential therapeutic target in cancer therapy. It has been well established that transcription factor NF-κB is involved in regulating physiological and pathological events including inflammation, immune response and differentiation. Increasing evidences suggest that deregulated NF-κB signaling can enhance cancer cell proliferation, metastasis and also mediate radio-as well as chemo-resistance. On the contrary, non-coding RNAs (ncRNAs) have been found to modulate NF-κB signaling pathway under different settings. MicroRNAs (miRNAs) can dually inhibit/induce NF-κB signaling thereby affecting the growth and migration of cancer cells. Furthermore, the response of cancer cells to radiotherapy and chemotherapy may also be regulated by miRNAs. Regulation of NF-κB by miRNAs may be mediated via binding to 3/-UTR region. Interestingly, anti-tumor compounds can increase the expression of tumor-suppressor miRNAs in inhibiting NF-κB activation and the progression of cancers. Long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) can also effectively modulate NF-κB signaling thus affecting tumorigenesis. It is noteworthy that several studies have demonstrated that lncRNAs and circRNAs can affect miRNAs in targeting NF-κB activation. They can act as competing endogenous RNA (ceRNA) thereby reducing miRNA expression to induce NF-κB activation that can in turn promote cancer progression and malignancy.
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Li Y, Yuan H, Chen Y, Xu B, Zhang Y. CircABCC4 Regulates the Proliferation, Migration, and Invasion of Colorectal Cancer SW620 Cells by Targeting Micro RNA-216a-3p. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2605] [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
This work investigates the effect of circABCC4 on the proliferation, migration, and invasion of colorectal cancer SW620 cells; circABCC4’s regulation of miR-216a-3p is also studied. qRT-PCR was used to measure the levels of circABCC4 and miR-216a-3p in colorectal cancer and adjacent
tissues. The human colorectal cancer SW620 cells were transfected with different constructs of circABCC4 or miR-216a-3p or both to study their interactions and combined effects on cell behavior. A dual-luciferase reporter experiment tested the targeted relationship between circABCC4 to miR-216a-3p.
Furthermore, the behaviors of SW620 cells, such as cell viability, migration, and invasion, were investigated. Also, the proteins related to cell behaviors were investigated with western blotting. Our results showed that colorectal cancer tissues had a higher level of circABCC4 but a lower
level miR-216a-3p. The increased level of circABCC4 and the reduced level of miR-216a-3p had analogous influences on the behaviors of SW620 cells, resulting in reduced cell proliferation, migration, and invasion; the levels of related protein were also decreased. Moreover, we found that disrupting
miR-548c-3p could reverse the influence of inhibiting circABCC4 on SW620 cells. In addition, the dual-luciferase reporter assay results confirmed the targeting of miR-216a-3p by circABCC4. These data demonstrate that the silencing of circABCC4 may inhibit the proliferation, migration, and
invasion of colorectal cancer cells by upregulating miR-548c-3p.
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Affiliation(s)
- Yiqian Li
- Department of Gastroenterology, SongShan Lake Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
| | - Haofeng Yuan
- Department of Urology, SongShan Lake Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
| | - Yibin Chen
- Department of Gastroenterology, SongShan Lake Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
| | - Baoqi Xu
- Department of Gastroenterology, SongShan Lake Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
| | - Yanhong Zhang
- Department of Gastroenterology, SongShan Lake Central Hospital of Dongguan City, Dongguan 523000, Guangdong, PR China
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