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Wang S, Qi X, Liu D, Xie D, Jiang B, Wang J, Wang X, Wu G. The implications for urological malignancies of non-coding RNAs in the the tumor microenvironment. Comput Struct Biotechnol J 2024; 23:491-505. [PMID: 38249783 PMCID: PMC10796827 DOI: 10.1016/j.csbj.2023.12.016] [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: 10/03/2023] [Revised: 12/08/2023] [Accepted: 12/16/2023] [Indexed: 01/23/2024] Open
Abstract
Urological malignancies are a major global health issue because of their complexity and the wide range of ways they affect patients. There's a growing need for in-depth research into these cancers, especially at the molecular level. Recent studies have highlighted the importance of non-coding RNAs (ncRNAs) – these don't code for proteins but are crucial in controlling genes – and the tumor microenvironment (TME), which is no longer seen as just a background factor but as an active player in cancer progression. Understanding how ncRNAs and the TME interact is key for finding new ways to diagnose and predict outcomes in urological cancers, and for developing new treatments. This article reviews the basic features of ncRNAs and goes into detail about their various roles in the TME, focusing specifically on how different ncRNAs function and act in urological malignancies.
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Affiliation(s)
- Shijin Wang
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Xiaochen Qi
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Dequan Liu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Deqian Xie
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Bowen Jiang
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Jin Wang
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Xiaoxi Wang
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Guangzhen Wu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
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Lv Y, Yuan Z, Chen D, Chen Z, Zhu X, Ying X, Huang Y, Ji W, Qi D. Circular RNA LMBR1 inhibits bladder cancer progression by enhancing expression of the protein ALDH1A3. Noncoding RNA Res 2024; 9:1235-1248. [PMID: 39036604 PMCID: PMC11259990 DOI: 10.1016/j.ncrna.2024.05.004] [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: 10/19/2023] [Revised: 05/11/2024] [Accepted: 05/12/2024] [Indexed: 07/23/2024] Open
Abstract
Background Circular RNAs (circRNAs) have been identified as playing an integral role in the development of bladder cancer (BC). However, the mechanism by which circRNAs operate in the chemical carcinogenesis of BC remains unclear. Methods To explore this mechanism, we used RNA high-throughput sequencing to identify differentially expressed circRNA in bladder epithelial cells and chemically induced malignant transformed BC cells. Subsequently, in vitro experiments were conducted to investigate the biological function and molecular mechanism of circLMBR1 in BC. Finally, animal experiments were conducted to examine the clinical relevance of circLMBR1 in vivo. Results Our profiling of circular RNA expression during cellular malignant transformation induced by chemical carcinogens identified a subset of circRNAs associated with cell transformation. We verified that the expression of circLMBR1 in bladder epithelial malignant transformed cells was decreased compared with control cells, as well as in BC tissues and bladder cell lines. Furthermore, circLMBR1 was seen to inhibit the proliferation, invasion, and migration of BC cells both in vitro and in vivo. Mechanistically, circLMBR1 was found to exert its antitumor effect by binding to the protein ALDH1A3. Conclusions Our findings have revealed that circLMBR1 inhibits the progression of BC cells by binding to ALDH1A3 and upregulating its expression. As such, circLMBR1 serves as a promising predictor of BC and may provide a novel therapeutic target for the treatment of BC.
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Affiliation(s)
- Yifan Lv
- Department of Urology, Minimally Invasive Surgery Center, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510230, Guangdong, PR China
| | - Zusen Yuan
- Department of Pediatric Surgery, Maternal and Child Health Hospital of Hubei, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430071, Hubei, PR China
| | - Dongmao Chen
- Department of Urology, The First People's Hospital of Zhaoqing, Zhaoqing, 526060, Guangdong, PR China
| | - Zhibin Chen
- Department of Urology, Minimally Invasive Surgery Center, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510230, Guangdong, PR China
| | - Xiaowei Zhu
- Department of Urology, The People's Hospital of Enping, Jiangmen, 529499, Guangdong, PR China
| | - Xiaoling Ying
- The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, Guangdong, PR China
| | - Yapeng Huang
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510062, Guangdong, PR China
| | - Weidong Ji
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510062, Guangdong, PR China
| | - Defeng Qi
- Department of Urology, Minimally Invasive Surgery Center, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510230, Guangdong, PR China
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Malek Mohammadi M, Rismanchi H, Esmailzadeh S, Farahani A, Hedayati N, Alimohammadi M, Mafi A, Farahani N, Hushmandi K. The emerging role of circular RNAs in cisplatin resistance in ovarian cancer: From molecular mechanism to future potential. Noncoding RNA Res 2024; 9:1280-1291. [PMID: 39040815 PMCID: PMC11261309 DOI: 10.1016/j.ncrna.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/05/2024] [Accepted: 05/19/2024] [Indexed: 07/24/2024] Open
Abstract
Ovarian cancer (OC) is the most common cause of death in female cancers. The prognosis of OC is very poor due to delayed diagnosis and identification of most patients in advanced stages, metastasis, recurrence, and resistance to chemotherapy. As chemotherapy with platinum-based drugs such as cisplatin (DDP) is the main treatment in most OC cases, resistance to DDP is an important obstacle to achieving satisfactory therapeutic efficacy. Consequently, knowing the different molecular mechanisms involved in resistance to DDP is necessary to achieve new therapeutic approaches. According to numerous recent studies, non-coding RNAs (ncRNAs) could regulate proliferation, differentiation, apoptosis, and chemoresistance in many cancers, including OC. Most of these ncRNAs are released by tumor cells into human fluid, allowing them to be used as tools for diagnosis. CircRNAs are ncRNA family members that have a role in the initiation, progression, and chemoresistance regulation of various cancers. In the current study, we investigated the roles of several circRNAs and their signaling pathways on OC progression and also on DDP resistance during chemotherapy.
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Affiliation(s)
| | - Hamidreza Rismanchi
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shakiba Esmailzadeh
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aryan Farahani
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Mina Alimohammadi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Mafi
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Najma Farahani
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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Wang X, Xue Q, Duan Q, Sun Z, Wu Y, Yang S, Xu P, Cao H, Liao F, Wang X, Miao C. Circ_0011058 alleviates RA pathology through the circ_0011058/miR-335-5p/CUL4B signal axis. Autoimmunity 2024; 57:2299587. [PMID: 38254314 DOI: 10.1080/08916934.2023.2299587] [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: 02/05/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024]
Abstract
Our previous study found that Cullin 4B (CUL4B) inhibited rheumatoid arthritis (RA) pathology through glycogen synthase kinase-3beta (GSK3β)/canonical Wnt signalling pathway. In this work, pre-experiment and bioinformatics analysis suggested that circ_0011058 may lead to the up-regulation of CUL4B expression by inhibiting miR-335-5p. Therefore, we studied whether circ_0011058 can promote the expression of CUL4B through sponging the miR-335-5p and further promote the pathological development of RA. Bioinformatics prediction, real-time quantitative PCR (RT-qPCR), western blot (WB), double luciferase reporter gene and other relevant methods were used to study the inhibition of circ_0011058 on RA pathology and its molecular mechanism. Results showed that the expression of circ_0011058 was significantly increased in adjuvant arthritis (AA) rats and RA fibroblast-like synoviocytes (FLS). The knockout of circ_0011058 inhibited the proliferation of AA FLS and RA FLS, decreased the levels of interleukin-1 beta (IL-1β), interleukin 6 (IL-6), interleukin 8 (IL-8), and inhibited the expression of matrix metalloproteinase 3 (MMP3), fibronectin, which showed that circ_0011058 had a strong role in promoting RA pathology. Furthermore, miR-335-5p expression was reduced in AA rats and RA FLS. The highly expressed circ_0011058 directly sponged the miR-335-5p, which led to the increase of CUL4B expression and promoted the activation of the GSK3β/canonical signalling pathway. Finally, we confirmed that miR-335-5p mediated the roles of circ_0011058 in promoting RA pathological development, which showed that the circ_0011058/miR-335-5p/CUL4B signal axis was involved in RA pathology. This work was of great significance for clarifying the roles of circ_0011058 in RA pathology, and further work was needed to establish whether circ_0011058 was a potential therapeutic target or diagnostic marker for RA.
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Affiliation(s)
- Xiaomei Wang
- Department of Humanistic Nursing, School of Nursing, Anhui University of Chinese Medicine, Hefei, China
| | - Qiuyun Xue
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Qiangjun Duan
- Department of Experimental Teaching Center, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Ziyi Sun
- Department of Scientific Research Technology Center, Anhui University of Chinese Medicine, Hefei, China
| | - Yajie Wu
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Shuo Yang
- Department of Orthopaedics, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Public Health Clinical Center, Hefei, China
| | - Pengfei Xu
- Department of Orthopaedics, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Public Health Clinical Center, Hefei, China
| | - Huibo Cao
- Chuzhou Integrated Traditional Chinese and Western Medicine Hospital, Anhui University of Chinese Medicine, Chuzhou, China
| | - Faxue Liao
- Department of Orthopaedics, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Public Health Clinical Center, Hefei, China
| | - Xiao Wang
- Department of Clinical Nursing, School of Nursing, Anhui University of Chinese Medicine, Hefei, China
| | - Chenggui Miao
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
- Institute of Rheumatism, Anhui University of Chinese Medicine, Hefei, China
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Ren B, Su H, Bao C, Xu H, Xiao Y. Noncoding RNAs in chronic obstructive pulmonary disease: From pathogenesis to therapeutic targets. Noncoding RNA Res 2024; 9:1111-1119. [PMID: 39022682 PMCID: PMC11254503 DOI: 10.1016/j.ncrna.2024.06.005] [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: 12/25/2023] [Revised: 05/09/2024] [Accepted: 06/04/2024] [Indexed: 07/20/2024] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is the most prevalent chronic respiratory disorder that is becoming the leading cause of morbidity and mortality on a global scale. There is an unmet need to investigate the underlying pathophysiological mechanisms and unlock novel therapeutic avenues for COPD. Recent research has shed light on the significant roles played by diverse noncoding RNAs (ncRNAs), including microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs), in orchestrating the development and progression of COPD. This review provides an overview of the regulatory roles of ncRNAs in COPD, elucidating their underlying mechanisms, and illuminating the potential prospects of RNA-based therapeutics in the management of COPD.
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Affiliation(s)
- Bingbing Ren
- Department of Pulmonary and Critical Care Medicine, Regional Medical Center for National Institute of Respiratory Disease, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310020, Zhejiang, China
| | - Hua Su
- Department of Pulmonary and Critical Care Medicine, Regional Medical Center for National Institute of Respiratory Disease, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
| | - Chang Bao
- Department of Pulmonary and Critical Care Medicine, Regional Medical Center for National Institute of Respiratory Disease, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
| | - Hangdi Xu
- Department of Pulmonary and Critical Care Medicine, Regional Medical Center for National Institute of Respiratory Disease, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
| | - Ying Xiao
- Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310020, Zhejiang, China
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Zhang Y, Zhang C, Peng C, Jia J. Unraveling the crosstalk: circRNAs and the wnt signaling pathway in cancers of the digestive system. Noncoding RNA Res 2024; 9:853-864. [PMID: 38586314 PMCID: PMC10995981 DOI: 10.1016/j.ncrna.2024.03.004] [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: 01/04/2024] [Revised: 03/02/2024] [Accepted: 03/03/2024] [Indexed: 04/09/2024] Open
Abstract
Circular RNA (circRNA) is a unique type of noncoding RNA molecule characterized by its closed-loop structure. Functionally versatile, circRNAs play pivotal roles in gene expression regulation, protein activity modulation, and participation in cell signaling processes. In the context of cancers of the digestive system, the Wnt signaling pathway holds particular significance. Anomalous activation of the Wnt pathway serves as a primary catalyst for the development of colorectal cancer. Extensive research underscores the notable participation of circRNAs associated with the Wnt pathway in the progression of digestive system tumors. These circRNAs exhibit pronounced dysregulation across esophageal cancer, gastric cancer, liver cancer, colorectal cancer, pancreatic cancer, and cholangiocarcinoma. Furthermore, the altered expression of circRNAs linked to the Wnt pathway correlates with prognostic factors in digestive system tumors. Additionally, circRNAs related to the Wnt pathway showcase potential as diagnostic, therapeutic, and prognostic markers within the realm of digestive system tumors. This comprehensive review outlines the interplay between circRNAs and the Wnt signaling pathway in cancers of the digestive system. It seeks to provide a comprehensive perspective on their association while delving into ongoing research that explores the clinical applications of circRNAs associated with the Wnt pathway.
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Affiliation(s)
- Yu Zhang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Cheng Zhang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Chuanhui Peng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Junjun Jia
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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Li X, Wang Y, Cheng J, Qiu L, Wang R, Zhang Y, Wang H. METTL3 -mediated m6A modification of circ_0000620 regulates cisplatin sensitivity and apoptosis in lung adenocarcinoma via the MiR-216b-5p/KRAS axis. Cell Signal 2024:111349. [PMID: 39153585 DOI: 10.1016/j.cellsig.2024.111349] [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: 05/17/2024] [Revised: 07/25/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Circular RNAs (circRNAs) are stable non-coding RNAs characterized by the absence of the conventional 5' cap and 3' polyadenylated tail structure. Its involvement in various aspects of cancers underscores its significance in oncology. Elevated expression of circ_0000620 was observed in both lung adenocarcinoma (LUAD) tissues and cell lines. In vitro, experiments demonstrated that the downregulation of circ_0000620 increased cisplatin sensitivity and promoted cell apoptosis while suppressing malignant characteristics such as cell migration and proliferation. Further investigation into the mechanism underlying the increased expression of circ_0000620 revealed that Methyltransferase 3, N6-Adenosine-Methyltransferase Complex Catalytic Subunit (METTL3) mediates the m6A methylation modification of circ_0000620, thereby promoting its stability and expression. Furthermore, circ_0000620 modulates the miR-216b-5p/KRAS axis to influence apoptosis and cisplatin sensitivity in both A549 and H1299 cell lines. These findings were corroborated by in vivo nude mouse experiments, which showed that knockdown of circ_0000620 inhibited tumor growth and proliferation. In summary, METTL3 plays a role in regulating the stability of circ_0000620 expression, and circ_0000620 exerts its effects on LUAD apoptosis and cisplatin sensitivity through the miR-216b-5p/KRAS signaling pathway.
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Affiliation(s)
- Xiangmei Li
- Department of Respiratory Medicine, Zhengzhou University First Affiliated Hospital, Zhengzhou 450000, China
| | - Yinlu Wang
- Department of Respiratory Medicine, Zhengzhou University First Affiliated Hospital, Zhengzhou 450000, China
| | - Jiuling Cheng
- Department of Respiratory Medicine, Zhengzhou University First Affiliated Hospital, Zhengzhou 450000, China
| | - Liliang Qiu
- Department of Respiratory Medicine, Zhengzhou University First Affiliated Hospital, Zhengzhou 450000, China
| | - Ruiyang Wang
- Department of Respiratory Medicine, Zhengzhou University First Affiliated Hospital, Zhengzhou 450000, China
| | - Yuping Zhang
- Department of Respiratory Medicine, Zhengzhou University First Affiliated Hospital, Zhengzhou 450000, China
| | - Huaqi Wang
- Department of Respiratory Medicine, Zhengzhou University First Affiliated Hospital, Zhengzhou 450000, China.
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Guo M, Li X, Tao W, Teng F, Li C. Vibrio splendidus infection promotes circRNA-FGL1-regulated coelomocyte apoptosis via competitive binding to Myc with the deubiquitinase OTUB1 in Apostichopus japonicus. PLoS Pathog 2024; 20:e1012463. [PMID: 39146353 DOI: 10.1371/journal.ppat.1012463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 07/30/2024] [Indexed: 08/17/2024] Open
Abstract
Circular RNAs (circRNAs) are involved in various physiological and pathological processes in both vertebrates and invertebrates. However, most studies on circRNAs have focused on their roles as endogenous competitive RNAs. Here, we report a novel function of circRNA derived from the Fibrinogen-like protein 1 gene (circ-FGL1) that inhibits coelomocyte apoptosis via competing with the deubiquitinase AjOTUB1 to bind AjMyc in Apostichopus japonicus during Vibrio splendidus infection. The results showed that circ-FGL1 is significantly downregulated in coelomocytes of V. splendidus-induced A. japonicus and negatively regulates coelomocyte apoptosis through the AjBax-AjCyt c pathway. Mechanistically, the deubiquitinase AjOTUB1 and circ-FGL1 could interact with the transcription factor protein AjMyc in the same region with circ-FGL1/AjMyc having greater affinity. Under normal conditions, high levels of circ-FGL1 bind directly to AjMyc, inhibiting the deubiquitylation of AjMyc by AjOTUB1 and leading to the degradation of AjMyc. After V. splendidus infection, AjMyc disassociates from the depressed expression of circ-FGL1, promoting its deubiquitylation by binding to the induced deubiquitinase AjOTUB1 to inhibit its degradation. AjMyc is then transferred to nucleus and promotes the transcription of AjCyt c and AjBax to induce coelomocyte apoptosis. The new finding will expand our present outstanding on the functional role of circRNAs and suggests new therapeutic targets for the treatment of echinoderms during bacterial invasion.
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Affiliation(s)
- Ming Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Xin Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Wenjun Tao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Fei Teng
- College of Mathematics and Computer, Jilin Normal University, Siping, Jilin, China
| | - Chenghua Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
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Wang XF, Yu CQ, You ZH, Wang Y, Huang L, Qiao Y, Wang L, Li ZW. BEROLECMI: a novel prediction method to infer circRNA-miRNA interaction from the role definition of molecular attributes and biological networks. BMC Bioinformatics 2024; 25:264. [PMID: 39127625 DOI: 10.1186/s12859-024-05891-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 08/01/2024] [Indexed: 08/12/2024] Open
Abstract
Circular RNA (CircRNA)-microRNA (miRNA) interaction (CMI) is an important model for the regulation of biological processes by non-coding RNA (ncRNA), which provides a new perspective for the study of human complex diseases. However, the existing CMI prediction models mainly rely on the nearest neighbor structure in the biological network, ignoring the molecular network topology, so it is difficult to improve the prediction performance. In this paper, we proposed a new CMI prediction method, BEROLECMI, which uses molecular sequence attributes, molecular self-similarity, and biological network topology to define the specific role feature representation for molecules to infer the new CMI. BEROLECMI effectively makes up for the lack of network topology in the CMI prediction model and achieves the highest prediction performance in three commonly used data sets. In the case study, 14 of the 15 pairs of unknown CMIs were correctly predicted.
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Affiliation(s)
- Xin-Fei Wang
- School of Information Engineering, Xijing University, Xi'an, China
| | - Chang-Qing Yu
- School of Information Engineering, Xijing University, Xi'an, China.
| | - Zhu-Hong You
- School of Computer Science, Northwestern Polytechnical University, Xi'an, China.
| | - Yan Wang
- Key Laboratory of Symbol Computation and Knowledge Engineering of Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun, China.
- School of Artificial Intelligence, Jilin University, Changchun, China.
| | - Lan Huang
- Key Laboratory of Symbol Computation and Knowledge Engineering of Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun, China
| | - Yan Qiao
- College of Agriculture and Forestry, Longdong University, Qingyang, China
| | - Lei Wang
- School of Computer Science and Technology, China University of Mining and Technology, Xuzhou, China
- Guangxi Academy of Sciences, Nanning, China
| | - Zheng-Wei Li
- School of Computer Science and Technology, China University of Mining and Technology, Xuzhou, China
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Ma S, Qian H, Zhou Q, Lei C. Hsa_circ_0007765 Promotes Platelet-Derived Growth Factor-BB-Induced Proliferation and Migration of Human Aortic Vascular Smooth Muscle Cells in Atherosclerosis. Cardiovasc Toxicol 2024:10.1007/s12012-024-09899-6. [PMID: 39126580 DOI: 10.1007/s12012-024-09899-6] [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: 06/01/2024] [Accepted: 07/11/2024] [Indexed: 08/12/2024]
Abstract
Human aortic vascular smooth muscle cells (HA-VSMCs) play vital roles in the pathogenesis of vascular diseases, including Atherosclerosis (AS). Circular RNAs (circRNAs) have been reported to regulate the biological functions of HA-VSMCs. Therefore, this study aimed to explore the role and mechanism of hsa_circRNA_102353 (circ_0007765) in platelet-derived growth factor-BB (PDGF-BB)-induced HA-VSMCs. Circ_0007765, microRNA-654-3p (miR-654-3p), and Fibroblast Growth Factor Receptor Substrate 2 (FRS2) expression were measured using real-time quantitative polymerase chain reaction (RT-qPCR). Cell proliferative ability, invasion, and migration were detected by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT), 5-ethynyl-2'-deoxyuridine (EdU), Transwell, and wound healing assays. CyclinD1, MMP2, and FRS2 protein levels were assessed using a Western blot assay. Binding between miR-654-3p and circ_0007765 or FRS2 was predicted by Circinteractome or TargetScan, and verified using dual-luciferase reporter and RNA pull-down assays. PDGF-BB induced HA-VSMC proliferation, invasion, and migration. Circ_0007765 and FRS2 expression levels were increased in PDGF-BB-treated HA-VSMCs, and the miR-654-3p level was reduced. Moreover, circ_0007765 absence hindered PDGF-BB-induced HA-VSMC proliferation, invasion, and migration in vitro. At the molecular level, circ_0007765 increased FRS2 expression by acting as a sponge for miR-654-3p. Our findings revealed that circ_0007765 boosted PDGF-BB-induced HA-VSMC proliferation and migration through elevating FRS2 expression via adsorbing miR-654-3p, providing a feasible therapeutic strategy for AS.
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Affiliation(s)
- Shengwei Ma
- Surgical Department of Cardiothoracic Macrovascular, Jingzhou Hospital Affiliated to Yangtze University, No.26 Chuyuan Avenue, Jingzhou District, Jingzhou, 434020, Hubei, China
| | - Haiyun Qian
- Surgical Department of Cardiothoracic Macrovascular, Jingzhou Hospital Affiliated to Yangtze University, No.26 Chuyuan Avenue, Jingzhou District, Jingzhou, 434020, Hubei, China.
| | - Qian Zhou
- Surgical Department of Cardiothoracic Macrovascular, Jingzhou Hospital Affiliated to Yangtze University, No.26 Chuyuan Avenue, Jingzhou District, Jingzhou, 434020, Hubei, China
| | - Chengang Lei
- Surgical Department of Cardiothoracic Macrovascular, Jingzhou Hospital Affiliated to Yangtze University, No.26 Chuyuan Avenue, Jingzhou District, Jingzhou, 434020, Hubei, China
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Su X, Li J, Xu X, Ye Y, Wang C, Pang G, Liu W, Liu A, Zhao C, Hao X. Strategies to enhance the therapeutic efficacy of anti-PD-1 antibody, anti-PD-L1 antibody and anti-CTLA-4 antibody in cancer therapy. J Transl Med 2024; 22:751. [PMID: 39123227 PMCID: PMC11316358 DOI: 10.1186/s12967-024-05552-6] [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: 05/10/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
Although immune checkpoint inhibitors (anti-PD-1 antibody, anti-PD-L1 antibody, and anti-CTLA-4 antibody) have displayed considerable success in the treatment of malignant tumors, the therapeutic effect is still unsatisfactory for a portion of patients. Therefore, it is imperative to develop strategies to enhance the effect of these ICIs. Increasing evidence strongly suggests that the key to this issue is to transform the tumor immune microenvironment from a state of no or low immune infiltration to a state of high immune infiltration and enhance the tumor cell-killing effect of T cells. Therefore, some combination strategies have been proposed and this review appraise a summary of 39 strategies aiming at enhancing the effectiveness of ICIs, which comprise combining 10 clinical approaches and 29 foundational research strategies. Moreover, this review improves the comprehensive understanding of combination therapy with ICIs and inspires novel ideas for tumor immunotherapy.
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Affiliation(s)
- Xin Su
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Jian Li
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Xiao Xu
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Youbao Ye
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Cailiu Wang
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Guanglong Pang
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Wenxiu Liu
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Ang Liu
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Changchun Zhao
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China
| | - Xiangyong Hao
- Department of General Surgery, Gansu Provincial Hospital, No. 204 Donggang West Road, Chengguan District, Lanzhou, 730000, China.
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Luo R, Li S, Yang C, Tang B, Li L, Luo C. Curcumin Inhibits the Development of Pancreatic Cancer by Targeting the circ_0079440/miR-522-3p/EIF4A1 Pathway. Cell Biochem Biophys 2024:10.1007/s12013-024-01466-8. [PMID: 39102088 DOI: 10.1007/s12013-024-01466-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2024] [Indexed: 08/06/2024]
Abstract
Pancreatic cancer (PC) is a common gastrointestinal cancer with high invasiveness and high mortality. Curcumin is a natural polyphenol with anti-tumor activity against different cancers, including PC. Curcumin has been verified to mediate the expression of circular RNAs (circRNAs) to inhibit tumor development. This study aimed to explore the function and regulatory mechanism of curcumin on circ_0079440 in PC. PC cells were treated with different concentrations of curcumin (0, 5, 10 or 15 μM) for 24 h. Gene expression in PC cells and tissues was detected using RT-qPCR. Cell malignant phenotypes were determined by functional assays. The levels of EMT-related proteins were tested using western blot. RNA interaction was determined using RNA pulldown assay, luciferase reporter assay and RIP assay. The results showed that curcumin suppressed cell proliferative, migratory, and invasive capabilities, and weakened epithelial-mesenchymal transition (EMT) in a concentration-dependent way. Circ_0079440 was expressed at a high level in PC and its level was reduced via curcumin administration in PC cells. Rescue assays showed that circ_0079440 overexpression reversed the suppressive effects of curcumin on PC cell malignant phenotypes. Furthermore, in the xenograft mouse models, curcumin treatment inhibited tumor growth and metastasis, and circ_0079440 upregulation reversed the function of curcumin. Additionally, circ_0079440 was revealed to bind to miR-522-3p to upregulate eukaryotic initiation factor 4A1 (EIF4A1) expression in PC cells. EIF4A1 expression was also downregulated by curcumin, and EIF4A1 overexpression abolished the suppressive functions of curcumin. Moreover, EIF4A overexpression or miR-522-3p inhibition counteracted the anti-tumor effects of circ_0079440 depletion on PC development. To sum up, curcumin suppresses PC development by targeting the circ_0079440/miR-522-3p/EIF4A1 pathway, which might provide novel therapeutic targets for treatment of PC.
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Affiliation(s)
- Ruiying Luo
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, Gansu, China
| | - Shuang Li
- Department of respiratory medicine, The Third People's Hospital of Gansu Province, Lanzhou, 730000, Gansu, China
| | - Chi Yang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, Gansu, China
| | - Baoyuan Tang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, Gansu, China
| | - Long Li
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, Gansu, China
| | - Changjiang Luo
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, Gansu, China.
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13
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Ju L, Luo Y, Shan J, Lu R, Chen L, Shao J, Bian Z, Yao M. CircGNAO1 suppresses hepatocellular carcinoma progression and metastasis via sponging miR-182-5p and regulating FOXO1 expression. Int Immunopharmacol 2024; 140:112873. [PMID: 39098231 DOI: 10.1016/j.intimp.2024.112873] [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: 05/10/2024] [Revised: 08/01/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is an aggressive malignant tumor with poor prognosis. Using high-throughput sequencing, we identified a novel circRNA, circGNAO1, which is downregulated in HCC tissues compared to adjacent tissues. However, the potential functions and mechanisms of circGNAO1 in HCC metastasis remain unclear. METHODS qRT-PCR was used to detect the expression of circGNAO1, miR-182-5p, and FOXO1 in HCC cells and tissues. Bioinformatics analysis, RNA pull-down assyas, and dual-luciferase reporter assays were employed to verify the interaction between circGNAO1 and miR-182-5p. Functional experiments were conducted using circGNAO1 overexpression and knockdown cell lines, including Transwell, wound healing, and EdU assays. Liver metastasis models and subcutaneous xenograft mouse models were established to analyze the effect of circGNAO1 on HCC metastasis and growth in vivo. RESULTS High-throughput sequencing and qRT-PCR results showed that the expression of circGNAO1 dramatically decreased in HCC tissues. Functionally, in vivo and in vitro experiments verified that overexpression of circGNAO1 inhibited the proliferation, migration, invasion and EMT of HCC cells, while knockdown of circGNAO1 promoted these behaviors. Mechanistically, we have demonstrated that circGNAO1 functions as a sponge for miR-182-5p to regulate FOXO1 expression, thereby activating the TGF-β/Smad3 signaling pathway and EMT process. CONCLUSIONS circGNAO1 suppresses the progression and metastasis of HCC through the miR-182-5p/FOXO1 axis, and circGNAO1 may be an efficient therapeutic target in HCC.
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Affiliation(s)
- Linling Ju
- Medical School of Nantong University, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Yunfeng Luo
- Medical School of Nantong University, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Jiajia Shan
- Nantong Haimen People's Hospital, Nantong, Jiangsu, China
| | - Rujian Lu
- Medical School of Nantong University, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Lin Chen
- Medical School of Nantong University, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Jianguo Shao
- Medical School of Nantong University, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China.
| | - Zhaolian Bian
- Medical School of Nantong University, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China.
| | - Min Yao
- Medical School of Nantong University, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China.
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14
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Jin J, Du M, Ding D, Xuan R. CircRNA circ_0013339 Regulates the Progression of Colorectal Cancer Through miR-136-5p/SOX9 Axis. Biochem Genet 2024; 62:2362-2380. [PMID: 37925667 DOI: 10.1007/s10528-023-10540-4] [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: 05/05/2023] [Accepted: 09/28/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is a common gastrointestinal malignancy. Dysregulation of circular RNAs (circRNAs) is associated with the progression of CRC. However, the role of circ_0013339 (hsa_circ_0013339) in CRC is still not clear. METHODS The levels of circ_0013339, miR-136-5p, and SRY-box transcription factor 9 (SOX9) in CRC were gauged by quantitative real-time polymerase chain reaction (qRT-PCR). Colony formation and 5-Ethynyl-2'-deoxyuridine (EdU) assays were used to detect cell proliferation. Cell counting kit-8 (CCK8) assay was used to measure cell viability. Western blot assay was performed to examine protein expression. The relationship between miR-136-5p and circ_0013339 or SOX9 was tested by dual-luciferase reporter assay. The effect of sh-circ_0013339 on tumor growth in vivo was examined by xenograft experiments. RESULTS Circ_0013339 expression was elevated in CRC tissues and cells, and circ_0013339 knockdown diminished the growth of CRC cells. MiR-136-5p was regulated by circ_0013339. MiR-136-5p deficiency ameliorated the effects of circ_0013339 silencing on CRC cell malignant behaviors. Circ_0013339 modulated SOX9 expression through miR-136-5p. SOX9 addition reversed the effects of miR-136-5p overexpression on CRC cell behaviors. Moreover, silencing of circ_0013339 suppressed the growth of xenograft tumors in vivo. CONCLUSION Circ_0013339 regulates the progression of CRC through miR-136-5p-dependent regulation of SOX9, uncovering a novel regulatory mechanism of circ_0013339 in CRC.
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Affiliation(s)
- Juan Jin
- Department of Gastroenterology, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230000, Anhui, China
| | - Min Du
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Anhui Medical University(The First People's Hospital of Hefei), Hefei, 230000, Anhui, China.
| | - Ding Ding
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Anhui Medical University(The First People's Hospital of Hefei), Hefei, 230000, Anhui, China
| | - Ran Xuan
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Anhui Medical University(The First People's Hospital of Hefei), Hefei, 230000, Anhui, China
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15
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Li Q, Wang Z, Wang J, Wang J, Zheng X, Li D, Wang Z, Li J, Li Y. Regulatory feedback loop between circ-EIF4A3 and EIF4A3 Enhances autophagy and growth in colorectal cancer cells. Transl Oncol 2024; 46:101996. [PMID: 38795560 PMCID: PMC11153236 DOI: 10.1016/j.tranon.2024.101996] [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: 08/01/2023] [Revised: 04/29/2024] [Accepted: 05/10/2024] [Indexed: 05/28/2024] Open
Abstract
Recent studies indicate that circular RNAs (circRNAs) are crucial in the progression of colorectal cancer (CRC). Eukaryotic translation initiation factor 4A3 (EIF4A3) has been identified as a promoter of circRNA production. The biological roles and mechanisms of EIF4A3-derived circRNA (circEIF4A3) in CRC cell autophagy remain poorly understood. This study explores the effects of circEIF4A3 on CRC cell growth and autophagy, aiming to elucidate the underlying molecular mechanisms. We discovered that EIF4A3 and circEIF4A3 synergistically enhance CRC cell growth. CircEIF4A3 sequesters miR-3126-5p, consequently upregulating EIF4A3. Further, circEIF4A3 increases EIF4A3 expression, which promotes autophagy by stabilizing ATG5 mRNA and enhances ATG7 protein stability through the stabilization of USP14 mRNA, a deubiquitinating enzyme. Upregulation of ATG5 and ATG7 counteracts the growth-inhibitory effects of EIF4A3 knockdown on CRC cells. Moreover, our findings demonstrate that EIF4A3 induces the formation of circEIF4A3 in CRC cells. In conclusion, a positive feedback loop between circEIF4A3 and EIF4A3 supports CRC cell growth by facilitating autophagy.
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Affiliation(s)
- Qingke Li
- Department of Gastrointestinal Surgery, Tangshan People's Hospital, Tangshan 063000, Hebei, China
| | - Zhiwu Wang
- Department of Chemoradiotherapy, Tangshan People's Hospital, Tangshan 063000, Hebei, China
| | - Jian Wang
- Department of Gastrointestinal Surgery, Tangshan People's Hospital, Tangshan 063000, Hebei, China
| | - Jiangong Wang
- Department of Chemoradiotherapy, Tangshan People's Hospital, Tangshan 063000, Hebei, China
| | - Xuan Zheng
- Hebei Key Laboratory of Molecular Oncology, Tangshan 063001, Hebei, China; The Cancer Institute, Tangshan People's Hospital, Tangshan 063001, Hebei, China; Tangshan Key Laboratory of Cancer Prevention and Treatment, Tangshan 063001, Hebei, China
| | - Dan Li
- Hebei Key Laboratory of Molecular Oncology, Tangshan 063001, Hebei, China; The Cancer Institute, Tangshan People's Hospital, Tangshan 063001, Hebei, China; Tangshan Key Laboratory of Cancer Prevention and Treatment, Tangshan 063001, Hebei, China
| | - Zhuo Wang
- Hebei Key Laboratory of Molecular Oncology, Tangshan 063001, Hebei, China; The Cancer Institute, Tangshan People's Hospital, Tangshan 063001, Hebei, China; Tangshan Key Laboratory of Cancer Prevention and Treatment, Tangshan 063001, Hebei, China
| | - Jingwu Li
- Department of Gastrointestinal Surgery, Tangshan People's Hospital, Tangshan 063000, Hebei, China; Hebei Key Laboratory of Molecular Oncology, Tangshan 063001, Hebei, China; The Cancer Institute, Tangshan People's Hospital, Tangshan 063001, Hebei, China.
| | - Yufeng Li
- Hebei Key Laboratory of Molecular Oncology, Tangshan 063001, Hebei, China; The Cancer Institute, Tangshan People's Hospital, Tangshan 063001, Hebei, China; Tangshan Key Laboratory of Cancer Prevention and Treatment, Tangshan 063001, Hebei, China.
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16
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Ding P, Wu H, Wu J, Li T, He J, Ju Y, Liu Y, Li F, Deng H, Gu R, Zhang L, Guo H, Tian Y, Yang P, Meng N, Li X, Guo Z, Meng L, Zhao Q. N6-methyladenosine modified circPAK2 promotes lymph node metastasis via targeting IGF2BPs/VEGFA signaling in gastric cancer. Oncogene 2024; 43:2548-2563. [PMID: 39014193 DOI: 10.1038/s41388-024-03099-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 07/18/2024]
Abstract
Circular RNAs (circRNAs) have emerged as key regulators of cancer occurrence and progression, as well as promising biomarkers for cancer diagnosis and prognosis. However, the potential mechanisms of circRNAs implicated in lymph node (LN) metastasis of gastric cancer remain unclear. Herein, we identify a novel N6-methyladenosine (m6A) modified circRNA, circPAK2, which is significantly upregulated in gastric cancer tissues and metastatic LN tissues. Functionally, circPAK2 enhances the migration, invasion, lymphangiogenesis, angiogenesis, epithelial-mesenchymal transition (EMT), and metastasis of gastric cancer in vitro and in vivo. Mechanistically, circPAK2 is exported by YTH domain-containing protein 1 (YTHDC1) from the nucleus to the cytoplasm in an m6A methylation-dependent manner. Moreover, increased cytoplasmic circPAK2 interacts with Insulin-Like Growth Factor 2 mRNA-Binding Proteins (IGF2BPs) and forms a circPAK2/IGF2BPs/VEGFA complex to stabilize VEGFA mRNA, which contributes to gastric cancer vasculature formation and aggressiveness. Clinically, high circPAK2 expression is positively associated with LN metastasis and poor prognosis in gastric cancer. This study highlights m6A-modified circPAK2 as a key regulator of LN metastasis of gastric cancer, thus supporting circPAK2 as a promising therapeutic target and prognostic biomarker for gastric cancer.
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Affiliation(s)
- Ping'an Ding
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
| | - Haotian Wu
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
| | - Jiaxiang Wu
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
| | - Tongkun Li
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
| | - Jinchen He
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
| | - Yingchao Ju
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
- Animal Center of the Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yueping Liu
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Fang Li
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Huiyan Deng
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Renjun Gu
- School of Chinese Medicine & School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Department of Gastroenterology and Hepatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Lilong Zhang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Honghai Guo
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
| | - Yuan Tian
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
| | - Peigang Yang
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China
| | - Ning Meng
- Department of General Surgery, Shijiazhuang People's Hospital, Shijiazhuang, Hebei, China
| | - Xiaolong Li
- Department of General Surgery, Baoding Central Hospital, Baoding, Hebei, China
| | - Zhenjiang Guo
- General Surgery Department, Hengshui People's Hospital, Hengshui, Hebei, China
| | - Lingjiao Meng
- Research Center and Tumor Research Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
| | - Qun Zhao
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, Hebei, China.
- Big data analysis and mining application for precise diagnosis and treatment of gastric cancer Hebei Provincial Engineering Research Center, Shijiazhuang, Hebei, China.
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17
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Zhu H, Wang Y, Wang G, Ling Y, Tian J, Zhou Y, Zhu R, Wang R, Wang R, Zhang W, Zhang X. The circular RNA hsa_circ_0045800 serves as a favorable biomarker in pathogenesis of sjögren's syndrome. Clin Rheumatol 2024; 43:2585-2594. [PMID: 38866992 PMCID: PMC11269352 DOI: 10.1007/s10067-024-06999-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 04/08/2024] [Accepted: 04/25/2024] [Indexed: 06/14/2024]
Abstract
BACKGROUND Circular RNAs (circRNAs) play various roles in the development of many autoimmune diseases. However, their expression profiles and specific function in Sjögren's Syndrome remains largely unknown. OBJECTIVES We aimed to investigate circRNAs potential diagnostic value in primary Sjögren's syndrome (pSS) and contribution to the pathogenesis of pSS. METHODS This study included 102 subjects, 51 pSS patients and 51 healthy controls. The concentration of hsa_circ_0045800 was analyzed in peripheral blood mononuclear cells obtained from 51 pSS patients and 51 healthy controls by qRT-PCR. We established a receiver operating characteristic curve (ROC) to assess the biological diagnostic value of hsa_circ_0045800 for pSS. In addition, we analyzed the correlation between hsa_circ_0045800 and disease activity in Sjogren's syndrome. A differential analysis was also conducted on the concentration of hsa_circ_0045800 in patients in pSS patients before and after treatment. We studied the downstream mechanism of hsa_circ_0045800 through bioinformatics analysis and confirmed it using luciferase reporter gene assay. RESULTS We confirmed that the concentration of hsa_circ_0045800 was elevated 10.4-fold in peripheral blood mononuclear cells of pSS patients than in healthy controls (p = 0.00). In the pSS active disease group, the concentration of hsa_circ_0045800 is 2.5-fold higher compared to the pSS non-active disease group (p = 0.04). The concentration of hsa_circ_0045800 after treatment was decreased by 80% compared with that before treatment (p = 0.037), suggesting its utility as a potential marker for monitoring treatment efficacy. ROC curve analysis showed that the diagnostic value of hsa_circ_0045800 in pSS patients was significantly higher than that in healthy controls, with an area under the curve of 0.865, a sensitivity of 74%, and a specificity of 92%. The concentration of hsa_circ_0045800 is correlated with various clinical factors: the concentration of hsa_circ_0045800 is positively associated with age (r = 0.328, P = 0.019), oral dryness (r = 0.331, P = 0.017), while it is negatively correlated with HGB (r = -0.435, P = 0.001) and and hypothyroidism (r = -0.318, P = 0.023). Bioinformatics predictions and luciferase assays indicated that hsa_circ_0045800 acts as a molecular sponge for miR-1247-5p, with SMAD2 being a target gene of miR-1247-5p. CONCLUSION Our study results show that hsa_circ_0045800 potentially contributes to the development and progression of pSS via the miR-1247-5p/SMAD2 pathway. Peripheral blood mononuclear cells are directly involved in the pathogenesis of pSS, and the discovery of hsa_circ_0045800 in peripheral blood mononuclear cells highlights its potential as a novel biomarker for disease activity and diagnosis in patients with pSS. Key Points • The concentration of hsa_circ_0045800 was higher in peripheral blood mononuclear cells of pSS patients. • Hsa_circ_0045800 promoted pSS progression through miR-1247-5p-SMAD2 axis. • Hsa_circ_0045800 is a potential biomarker for pSS.
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Affiliation(s)
- Hong Zhu
- Department of Rheumatology, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yi Wang
- The Second Department of Internal Medicine, Ningxia Gem Flower Hospital, Yinchuan 750006, Ningxia, China
| | - Ge Wang
- University of Health and Rehabilitation Sciences, Qingdao Municipal Hospital Group, Qingdao 266000, Shandong, China
| | - Yitong Ling
- Department of Neurology, Jinan University First Afliated Hospital, Guangzhou 510000, Guangdong, China
| | - Jinhai Tian
- Biochip Center, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yan Zhou
- Department of Rheumatology, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Rong Zhu
- Department of Rheumatology, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Rui Wang
- First Clinical Medical College of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Ruixin Wang
- First Clinical Medical College of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Wenhui Zhang
- Department of Intensive Care Unit Ward, Rizhao People's Hospital, Rizhao, Shandong, China.
| | - Xiaoyu Zhang
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510000, Guangdong, China.
- Guangdong Provincial Key Laboratory of Liver Disease Research, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510000, Guangdong, China.
- Central Laboratory, Rizhao People's Hospital, Rizhao, China.
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Wang D, Chen D, Liang L, Hu J. The circZEB1/miR-337-3p/ OGT axis mediates angiogenesis and metastasis via O-GlcNAcylation and up-regulating YBX1 in breast cancer. Heliyon 2024; 10:e34079. [PMID: 39114035 PMCID: PMC11305230 DOI: 10.1016/j.heliyon.2024.e34079] [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: 01/04/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 08/10/2024] Open
Abstract
Background A growing corpus of research has revealed that circular RNAs (circRNAs) have become increasingly important for the growth of malignancies in recent years. CircRNAs as ideal candidates for breast cancer (BC) therapeutic targets is still absent. Methods In our study, the dysregulated circRNAs in BC progression were explored, we analysed the BC's circRNA expression profiles using publicly available datasets (GSE101124 and GSE101122). The expression of circZEB1 in BC and cell lines was investigated by qPCR. RNase and actinomycin D were used to examine the features of circZEB1. The function of circZEB1 was subsequently investigated through the utilisation of colony formation, tube formation, transwell assays, and xenograft animal models.RNA immunoprecipitation (RIP), luciferase reporter assays, immunoprecipitation (co-IP) test in conjunction with LC-MS, and ChIP-seq assay to investigate the molecular mechanism underlying the biological activity of circZEB1 in BC. Results Among the circRNAs, we were particularly interested in hsa_circ_0000228, which is spliced from the oncogene ZEB1. In BC cell lines, CircZEB1 expression was upregulated. CircZEB1 knockdown prevented BC cells from migrating and invading, as well as HUVECs from forming tubes and developing. By sponging miR-337-3p, functional testing revealed that circZEB1 promoted O-GlcNAcylation, increased YBX1, and OGT expression. Moreover, circZEB1 overexpression is reversible, in contrast to YBX1 knockdown, which mostly results in the downregulation of multiple oncogenes. Conclusion Our study indicate that circZEB1 had oncogenic function in BC by focusing on circZEB1/miR-337-3p/OGT and YBX1. It might be inferred that circZEB1 could be a promising new target for BC treatment.
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Affiliation(s)
- Dongying Wang
- Molecular Genetics Laboratory, Yiwu Maternity and Children Hospital, Jinhua, 321000, China
| | - Dengyi Chen
- Department of Clinical Laboratory, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, 441000, China
| | - Leilei Liang
- Zhejiang Cancer Hospital, Hangzhou, 310011, China
| | - Jialei Hu
- Molecular Genetics Laboratory, Yiwu Maternity and Children Hospital, Jinhua, 321000, China
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Farazi MM, Jafarinejad-Farsangi S, Miri Karam Z, Gholizadeh M, Hadadi M, Yari A. Circular RNAs: Epigenetic regulators of PTEN expression and function in cancer. Gene 2024; 916:148442. [PMID: 38582262 DOI: 10.1016/j.gene.2024.148442] [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: 12/29/2023] [Revised: 03/04/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Epigenetic regulation of gene expression, without altering the DNA sequence, is involved in many normal cellular growth and division events, as well as diseases such as cancer. Epigenetics is no longer limited to DNA methylation, and histone modification, but regulatory non-coding RNAs (ncRNAs) also play an important role in epigenetics. Circular RNAs (circRNAs), single-stranded RNAs without 3' and 5' ends, have recently emerged as a class of ncRNAs that regulate gene expression. CircRNAs regulate phosphatase and tensin homolog (PTEN) expression at various levels of transcription, post-transcription, translation, and post-translation under their own regulation. Given the importance of PTEN as a tumor suppressor in cancer that inhibits one of the most important cancer pathways PI3K/AKT involved in tumor cell proliferation and survival, significant studies have been conducted on the regulatory role of circRNAs in relation to PTEN. These studies will be reviewed in this paper to better understand the function of this protein in cancer and explore new therapeutic approaches.
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Affiliation(s)
| | - Saeideh Jafarinejad-Farsangi
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
| | - Zahra Miri Karam
- Department of Medical Genetics, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran; Endocrinology & Metabolism Research Center, Institute of Basic & Clinical Physiology Sciences, Kerman University of Medical Sciences Kerman, Iran
| | - Maryam Gholizadeh
- Institute of Bioinformatics, University of Medicine Greifswald, Greifwald, Germany
| | - Maryam Hadadi
- Cardiovascular Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Abolfazl Yari
- Endocrinology & Metabolism Research Center, Institute of Basic & Clinical Physiology Sciences, Kerman University of Medical Sciences Kerman, Iran; Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
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20
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Ji Y, Ni C, Shen Y, Xu Z, Tang L, Yu F, Zhu L, Lu H, Zhang C, Yang S, Wang X. ESRP1-mediated biogenesis of circPTPN12 inhibits hepatocellular carcinoma progression by PDLIM2/ NF-κB pathway. Mol Cancer 2024; 23:143. [PMID: 38992675 PMCID: PMC11238376 DOI: 10.1186/s12943-024-02056-1] [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: 06/29/2024] [Indexed: 07/13/2024] Open
Abstract
BACKGROUND Emerging evidence indicates the pivotal involvement of circular RNAs (circRNAs) in cancer initiation and progression. Understanding the functions and underlying mechanisms of circRNAs in tumor development holds promise for uncovering novel diagnostic indicators and therapeutic targets. In this study, our focus was to elucidate the function and regulatory mechanism of hsa-circ-0003764 in hepatocellular carcinoma (HCC). METHODS A newly discovered hsa-circ-0003764 (circPTPN12) was identified from the circbase database. QRT-PCR analysis was utilized to assess the expression levels of hsa-circ-0003764 in both HCC tissues and cells. We conducted in vitro and in vivo experiments to examine the impact of circPTPN12 on the proliferation and apoptosis of HCC cells. Additionally, RNA-sequencing, RNA immunoprecipitation, biotin-coupled probe pull-down assays, and FISH were employed to confirm and establish the relationship between hsa-circ-0003764, PDLIM2, OTUD6B, P65, and ESRP1. RESULTS In HCC, the downregulation of circPTPN12 was associated with an unfavorable prognosis. CircPTPN12 exhibited suppressive effects on the proliferation of HCC cells both in vitro and in vivo. Mechanistically, RNA sequencing assays unveiled the NF-κB signaling pathway as a targeted pathway of circPTPN12. Functionally, circPTPN12 was found to interact with the PDZ domain of PDLIM2, facilitating the ubiquitination of P65. Furthermore, circPTPN12 bolstered the assembly of the PDLIM2/OTUD6B complex by promoting the deubiquitination of PDLIM2. ESRP1 was identified to bind to pre-PTPN12, thereby fostering the generation of circPTPN12. CONCLUSIONS Collectively, our findings indicate the involvement of circPTPN12 in modulating PDLIM2 function, influencing HCC progression. The identified ESRP1/circPTPN12/PDLIM2/NF-κB axis shows promise as a novel therapeutic target in the context of HCC.
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Affiliation(s)
- Yang Ji
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China
- Medical College, Yangzhou University, Yangzhou, China
| | - Chuangye Ni
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China
| | - Yanjun Shen
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China
| | - Zhenggang Xu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China
| | - Lei Tang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China
| | - Fei Yu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China
- Department of General Surgery, Jinhu People's Hospital, Huaian City, China
| | - Lingbang Zhu
- Jiangdu People's Hospital Affiliated to Yangzhou University, Yangzhou, China
| | - Hao Lu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China.
| | - Chuanyong Zhang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China.
| | - Shikun Yang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China.
| | - Xuehao Wang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), No. 300 Guangzhou Road, Nanjing, Jiangsu Province, 210029, China.
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Tang JY, Yang L, Wu QJ, Yang Y, Su YY, Chen YR, Mu J. Circ-IP6K2 suppresses tumor progression by modulating the miR-1292-5p/CAMK2N1 signal in clear cell renal cell carcinoma. Funct Integr Genomics 2024; 24:122. [PMID: 38980439 DOI: 10.1007/s10142-024-01398-9] [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: 01/27/2024] [Revised: 06/12/2024] [Accepted: 06/20/2024] [Indexed: 07/10/2024]
Abstract
Renal cell carcinoma (RCC) is a malignant tumor originating from the epithelial cells of the renal tubules. The clear cell RCC subtype is closely linked to a poor prognosis due to its rapid progression. Circular RNA (circRNA) is a novel class of regulatory RNA molecules that play a role in the development of ccRCC, although their functions have not been fully elucidated. In this study, we identified a significant downregulation of circ-IP6K2 in ccRCC tissues based on data from the GSE100186 dataset. The decreased expression of circ-IP6K2 correlated with the progression of TNM stage and histological grade, and was also associated with decreased overall survival rates in ccRCC patients. Moreover, our findings revealed that circ-IP6K2 expression suppressed proliferation, migration, and invasion capabilities in vitro, and inhibited xenograft growth in vivo. Mechanistically, circ-IP6K2 acted as a sponge for miR-1292-5p in ccRCC cells, which in turn targeted the 3'UTR of CAMK2N1, leading to a decrease in its expression. CAMK2N1 was identified as a tumor suppressor that negatively regulated the β-catenin/c-Myc oncogenic signaling pathway. Additionally, we confirmed a positive correlation between the expression of circ-IP6K2 and CAMK2N1 in ccRCC. Circ-IP6K2 functions to impede the progression of ccRCC by modulating the miR-1292-5p/CAMK2N1 axis. These findings shed new light on the molecular mechanisms driving ccRCC progression and suggest potential therapeutic targets for the treatment of ccRCC.
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Affiliation(s)
- Jian-Ying Tang
- Department of Nephrology, University-Town Hospital of Chongqing Medical University, No 55 road of University-Town, Shapingba District, Chongqing, 401331, P.R. China
| | - Lu Yang
- Department of Nephrology, University-Town Hospital of Chongqing Medical University, No 55 road of University-Town, Shapingba District, Chongqing, 401331, P.R. China
| | - Qing-Jian Wu
- Department of Urology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Ying Yang
- Department of Nephrology, University-Town Hospital of Chongqing Medical University, No 55 road of University-Town, Shapingba District, Chongqing, 401331, P.R. China
| | - Yuan-Yuan Su
- Department of Nephrology, University-Town Hospital of Chongqing Medical University, No 55 road of University-Town, Shapingba District, Chongqing, 401331, P.R. China
| | - Yi-Rong Chen
- Department of Nephrology, University-Town Hospital of Chongqing Medical University, No 55 road of University-Town, Shapingba District, Chongqing, 401331, P.R. China
| | - Jiao Mu
- Department of Nephrology, University-Town Hospital of Chongqing Medical University, No 55 road of University-Town, Shapingba District, Chongqing, 401331, P.R. China.
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Mafi A, Hedayati N, Milasi YE, Kahkesh S, Daviran M, Farahani N, Hashemi M, Nabavi N, Alimohammadi M, Rahimzadeh P, Taheriazam A. The function and mechanism of circRNAs in 5-fluorouracil resistance in tumors: Biological mechanisms and future potential. Pathol Res Pract 2024; 260:155457. [PMID: 39018926 DOI: 10.1016/j.prp.2024.155457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/19/2024]
Abstract
5-Fluorouracil (5-FU) is a well-known chemotherapy drug extensively used in the treatment of breast cancer. It works by inhibiting cancer cell proliferation and inducing cell death through direct incorporation into DNA and RNA via thymidylate synthase (TS). Circular RNAs (circRNAs), a novel family of endogenous non-coding RNAs (ncRNAs) with limited protein-coding potential, contribute to 5-FU resistance. Their identification and targeting are crucial for enhancing chemosensitivity. CircRNAs can regulate tumor formation and invasion by adhering to microRNAs (miRNAs) and interacting with RNA-binding proteins, regulating transcription and translation. MiRNAs can influence enzymes responsible for 5-FU metabolism in cancer cells, affecting their sensitivity or resistance to the drug. In the context of 5-FU resistance, circRNAs can target miRNAs and regulate biological processes such as cell proliferation, cell death, glucose metabolism, hypoxia, epithelial-to-mesenchymal transition (EMT), and drug efflux. This review focuses on the function of circRNAs in 5-FU resistance, discussing the underlying molecular pathways and biological mechanisms. It also presents recent circRNA/miRNA-targeted cancer therapeutic strategies for future clinical application.
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Affiliation(s)
- Alireza Mafi
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Yaser Eshaghi Milasi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Samaneh Kahkesh
- Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Minoo Daviran
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Najma Farahani
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Noushin Nabavi
- Independent Researcher, Victoria, British Columbia V8V 1P7, Canada
| | - Mina Alimohammadi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Payman Rahimzadeh
- Surgical Research Society (SRS), Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - 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.
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Leng X, Zhang M, Xu Y, Wang J, Ding N, Yu Y, Sun S, Dai W, Xue X, Li N, Yang Y, Shi Z. Non-coding RNAs as therapeutic targets in cancer and its clinical application. J Pharm Anal 2024; 14:100947. [PMID: 39149142 PMCID: PMC11325817 DOI: 10.1016/j.jpha.2024.02.001] [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: 10/27/2023] [Revised: 01/12/2024] [Accepted: 02/01/2024] [Indexed: 08/17/2024] Open
Abstract
Cancer genomics has led to the discovery of numerous oncogenes and tumor suppressor genes that play critical roles in cancer development and progression. Oncogenes promote cell growth and proliferation, whereas tumor suppressor genes inhibit cell growth and division. The dysregulation of these genes can lead to the development of cancer. Recent studies have focused on non-coding RNAs (ncRNAs), including circular RNA (circRNA), long non-coding RNA (lncRNA), and microRNA (miRNA), as therapeutic targets for cancer. In this article, we discuss the oncogenes and tumor suppressor genes of ncRNAs associated with different types of cancer and their potential as therapeutic targets. Here, we highlight the mechanisms of action of these genes and their clinical applications in cancer treatment. Understanding the molecular mechanisms underlying cancer development and identifying specific therapeutic targets are essential steps towards the development of effective cancer treatments.
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Affiliation(s)
- Xuejiao Leng
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Mengyuan Zhang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yujing Xu
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jingjing Wang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Ning Ding
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yancheng Yu
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shanliang Sun
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Weichen Dai
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xin Xue
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Nianguang Li
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Ye Yang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zhihao Shi
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, Nanjing, 211198, China
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Yang TN, Xiao RW, Su F, Dai HY, Zhao D, Guo CH, Zhu KL, Jiang N, Guan QL, Hou XM. CircVDAC3 sequesters microRNA-592 and elevates EIF4E3 expression to inhibit the progression of gastric cancer. Transl Oncol 2024; 45:101972. [PMID: 38705053 PMCID: PMC11087954 DOI: 10.1016/j.tranon.2024.101972] [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: 01/26/2024] [Revised: 03/30/2024] [Accepted: 04/18/2024] [Indexed: 05/07/2024] Open
Abstract
BACKGROUND Accumulating evidence has shown that circular RNAs (circRNAs) are involved in gastric cancer (GC) tumorigenesis. However, specific functional circRNAs in GC remain to be discovered, and their underlying mechanisms remain to be elucidated. METHODS CircRNAs that were differentially expressed between GC tissues and controls were analyzed using a circRNA microarray dataset. The expression of circVDAC3 in GC was determined using quantitative real-time PCR (qRT-PCR), and the structural features of circVDAC3 were validated. Cell function assays and animal experiments were conducted to explore the effects of circVDAC3 on GC. Finally, bioinformatics analysis, fluorescent in situ hybridization, and dual luciferase assays were used to analyze the downstream mechanisms of circVDAC3. RESULTS Our results showed that circVDAC3 was downregulated in GC and inhibited the proliferation and metastasis of GC cells. Mechanistically, circVDAC3 acts as a competing endogenous RNA (ceRNA) of miR-592 and deregulates the repression of EIF4E3 by miR-592. EIF4E3 is downregulated in GC and overexpression of miR-592 or knockdown of EIF4E3 in circVDAC3-overexpressing cells weakens the anticancer effect of circVDAC3. CONCLUSION Our study provides evidence that circVDAC3 affects the growth and metastasis of GC cells via the circVDAC3/miR-592/EIF4E3 axis. Our findings offer valuable insights into the mechanisms underlying GC tumorigenesis and suggest novel therapeutic strategies.
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Affiliation(s)
- Tian-Ning Yang
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, PR China; Department of Oncology, The First Hospital of Lanzhou University, Lanzhou, Gansu, PR China
| | - Ruo-Wen Xiao
- Department of Oncology, The First Hospital of Lanzhou University, Lanzhou, Gansu, PR China
| | - Fei Su
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, PR China; Department of Oncology, The First Hospital of Lanzhou University, Lanzhou, Gansu, PR China
| | - Huan-Yu Dai
- Department of Oncology, The First Hospital of Lanzhou University, Lanzhou, Gansu, PR China
| | - Da Zhao
- Department of Oncology, The First Hospital of Lanzhou University, Lanzhou, Gansu, PR China
| | - Chen-Hao Guo
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, PR China
| | - Kai-Li Zhu
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, PR China
| | - Nan Jiang
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, PR China
| | - Quan-Lin Guan
- Department of Oncology Surgery, The First Hospital of Lanzhou University, Lanzhou, Gansu, PR China.
| | - Xiao-Ming Hou
- Department of Oncology, The First Hospital of Lanzhou University, Lanzhou, Gansu, PR China.
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Deng W, Fu J, Lin S, Wen Q, Fu L, Chen X. Hsa_circRNA_101036 aggravates hypoxic-induced endoplasmic reticulum stress via the miR-21-3p/TMTC1 axis in oral squamous cell carcinoma. Heliyon 2024; 10:e32969. [PMID: 38994041 PMCID: PMC11238011 DOI: 10.1016/j.heliyon.2024.e32969] [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: 07/25/2023] [Revised: 06/12/2024] [Accepted: 06/12/2024] [Indexed: 07/13/2024] Open
Abstract
Objective Circular RNAs (circRNAs) have been identified as potential biomarkers and therapeutic targets for various types of cancer, including Oral squamous cell carcinoma (OSCC). Hsa_circRNA_101036 was found to function as a cancer suppressor gene in OSCC; however, the underlying regulatory mechanism remains unclear. We investigated the role of hsa_circRNA_101036 in OSCC development and progression and explored its potential as a therapeutic target. Methods We performed a bioinformatics analysis and used experimental approaches to investigate the regulatory mechanism of hsa_circRNA_101036. The database StarBase v.2.0 was used to predict potential target-miRNAs of hsa_circRNA_101036. The levels of hsa_circRNA_101036, miR-21-3p, and TMTC2 expression in samples of OSCC cancer tissue (n = 15) and adjacent tissue (n = 15) were determined. We also examined the effects of hsa_circRNA_101036 overexpression on OSCC cell lines by using cell viability, migration, and invasion assays. The proportions of apoptotic cells and the reactive oxygen species (ROS) levels were analyzed by flow cytometry. We also investigated how hsa_circRNA_101036 overexpression affected the levels of miR-21-3p and TMTC2, and endoplasmic reticulum (ER) stress in OSCC cells. Results The levels of hsa_circRNA_101036 and TMTC2 expression were significantly lower, while miR-21-3p expression was higher in tumor tissues and OSCC cells when compared to adjacent tissues and normal oral fibroblasts, respectively. The levels of HIF-1α and miR-21-3p expression were significantly increased under conditions of hypoxia, while the levels of hsa_circRNA_101036 and TMTC2 were decreased. The expression levels of proteins associated with ER stress, the proportions of apoptotic cells, and the levels of ROS were all increased by hypoxia stimulation. In addition, overexpression of hsa_circRNA_101036, but not mutant hsa_circRNA_101036, was found to enhance the effect of hypoxia on HSC3 and OECM-1 cells. Hsa_circRNA_101036 overexpression suppressed tumor growth and induced ER stress. Finally, knockdown of miR-21-3p had the same effect as overexpression of hsa_circRNA_101036. Conclusion Our findings suggest that hsa_circRNA_101036 plays a critical role in the development and progression of OSCC. Overexpression of hsa_circRNA_101036 aggravated ER stress, and increased cell apoptosis and ROS production in OSCC under hypoxic conditions. Hsa_circRNA_101036 up-regulated TMTC2 expression by sponging miR-21-3p in OSCC.
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Affiliation(s)
- Wei Deng
- Department of Oral and Maxillofacial Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Juan Fu
- Department of Infectious Diseases, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Shigeng Lin
- Department of Oral and Maxillofacial Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Qitao Wen
- Department of Oral and Maxillofacial Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Liangbin Fu
- Department of Oral and Maxillofacial Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Xiaoze Chen
- Department of Oral and Maxillofacial Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
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Lv K, Xie P, Yang Q, Luo M, Li C. hsa_circ_0101050 regulated by ZC3H13 enhances tumorigenesis in papillary thyroid cancer via m 6A modification. Heliyon 2024; 10:e32913. [PMID: 38988519 PMCID: PMC11234023 DOI: 10.1016/j.heliyon.2024.e32913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/23/2024] [Accepted: 06/11/2024] [Indexed: 07/12/2024] Open
Abstract
While the regulatory roles of circular RNAs (circRNAs) and zinc finger CCCH-type containing 13 (ZC3H13) were previously reported in various human cancers, the mechanisms underlying their interaction in papillary thyroid cancer (PTC) remain unclear. We aimed to determine the role of hsa_circ_0101050 and its regulatory relationship with ZC3H13 in PTC. The expression levels of hsa_circ_0101050 and ZC3H13 were determined in tumor samples and adjacent normal tissues from 46 patients with PTC and in two PTC cell lines (IHH-4 and PTC-1) using quantitative reverse transcription-polymerase chain reaction. The roles of hsa_circ_0101050 and ZC3H13 in cell viability, wound healing, and migration were determined using knockdown and overexpression approaches in PTC cell lines, and a xenograft model in nude mice was used to determine their role in vivo. Methylated RNA immunoprecipitation assay was used to analyze N6-methyladenosine (m6A) modification of hsa_circ_0101050 by ZC3H13. We found hsa_circ_0101050 overexpression and ZC3H13 downregulation in PTC samples and PTC cell lines. In PTC cell lines, silencing hsa_circ_0101050 reduced cell viability and migration whereas its overexpression promoted an aggressive PTC phenotype. ZC3H13 increased the m6A modification of hsa_circ_0101050 and repressed its expression. ZC3H13 overexpression inhibited PTC cell viability, migration, and invasion, which were reversed in cells overexpressing hsa_circ_0101050. Taken together, these results suggested that the downregulation of hsa_circ_0101050 mediated by ZC3H13 through m6A modification contributed to its oncogenic effect in PTC development, revealing the ZC3H13-m6A-hsa_circ_0101050 as a potential therapeutic target in PTC.
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Affiliation(s)
- Kun Lv
- Department of Tradition Chinese Medicine, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Ping Xie
- Department of Tradition Chinese Medicine, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Qian Yang
- Department of Tradition Chinese Medicine, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Meng Luo
- Department of Tradition Chinese Medicine, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Chan Li
- Department of Tradition Chinese Medicine, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430060, Hubei, China
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Shi R, Zhang L. Circ_0004771 regulates malignant biological behaviors and has clinical significance in oral squamous cell carcinoma. J Oral Pathol Med 2024. [PMID: 38887835 DOI: 10.1111/jop.13566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 05/23/2024] [Accepted: 05/25/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND The incidence of oral squamous cell carcinoma (OSCC) is increasing, and more effective treatment protocols must rapidly be developed to prevent the death of patients and ensure favorable outcomes. CircRNAs are a unique class of noncoding ribonucleic acid (RNA) molecules unaffected by RNA exonucleases. CircRNAs have more stable expression than linear RNAs and are not readily degraded; therefore, they are the newest focus of RNA research. Here, we analyze the mechanism of hsa_circ_0004771 (circ_0004771) in OSCC to provide a clinical reference. METHODS Circ_0004771 expression was measured in peripheral blood, cancerous tissues and adjacent tissues of OSCC patients. Patients were followed up for 3 years. The diagnostic value of circ_0004771 for OSCC occurrence, prognosis, recurrence and survival was analyzed with receiver operating characteristic (ROC) curves. OSCC cells were lentivirally transduced with a circ_0004771-silencing or an empty vector to evaluate alterations in cell growth, invasion, and apoptosis. Apoptosis-related and epithelial-mesenchymal transition (EMT)-related protein expression was quantified. BALB/c nude mice were used for tumorigenesis experiments to evaluate tumor growth in vivo after silencing circ_0004771. RESULTS Circ_0004771 expression was higher in peripheral blood and cancerous tissue of OSCC patients than in control peripheral blood and paracancerous tissue, respectively, exhibiting excellent predictive value for OSCC occurrence, prognosis, recurrence and survival. Silencing circ_0004771 decreased the growth, invasiveness, and EMT capacity and increased the apoptosis of OCC cells. In mice implanted with OSCC cells transduced with the circ_0004771-silencing lentiviral vector, the tumor growth capacity was obviously decreased. CONCLUSION Silencing circ_0004771 inhibits the malignant growth of OSCC.
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Affiliation(s)
- Rongji Shi
- Department of Stomatology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lei Zhang
- Department of Stomatology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Mi Z, Wen W, Guo F, Shi Q, Long C, Zhou Y, Ma R. CircRNA hsa_circ_0069,399 as a potential clinical prognostic marker in laryngeal squamous cell carcinoma. Heliyon 2024; 10:e31969. [PMID: 38845955 PMCID: PMC11154600 DOI: 10.1016/j.heliyon.2024.e31969] [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: 02/26/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 06/09/2024] Open
Abstract
Objective Circular RNAs (circRNAs) significantly influence the invasion, metastasis, gene expression, proliferation, and apoptosis of tumor cells. However, the roles of circRNAs in laryngeal squamous cell carcinoma (LSCC) remain largely unexplored. This study aims to examine circRNA expression patterns in LSCC and adjacent non-tumorous tissues, with the goal of uncovering potential biomarkers for LSCC. Methods Tissue samples were collected from both the tumor and adjacent normal tissues of ten patients who had undergone surgical resection. The profiling of circRNAs was conducted through transcriptomic sequencing and analytical bioinformatics approaches. A ternary regulatory network based on the competitive endogenous RNA (ceRNA) hypothesis was established, linking target circRNAs to clinical immunohistochemical parameters for comparison. Verification of target circRNAs in LSCC tissues was performed using quantitative real-time PCR (RT-qPCR), whereas target mRNAs were analyzed through immunohistochemistry. Results A total of 126 significantly different circRNAs were identified, including 40 up-regulated genes and 86 down-regulated genes. Furthermore, 92 circRNA-miRNA-mRNA regulatory relationship axes related to clinical immunohistochemical indicators were found based on 5 candidate circRNAs. Interestingly, all axes related to the target genes MKI67 and TP53 were found to compete with the same circRNA: hsa_circ_0069,399. Further verification confirmed that the hsa_circ_0069,399 expression was overtly upregulated in tumor tissues from LSCC patients, which was consistent with the sequencing results. Conclusion hsa_circ_0069,399 could be a potential prognostic marker for LSCC.
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Affiliation(s)
- Zhipeng Mi
- The Second Clinical Medical College, Ningxia Medical University, 750000 Yinchuan, Ningxia, China
| | - Wulin Wen
- Yinchuan First People's Hospital, Otolaryngology Head and Neck Surgery Hospital, 750000 Yinchuan, Ningxia, China
| | - Fan Guo
- The Second Clinical Medical College, Ningxia Medical University, 750000 Yinchuan, Ningxia, China
| | - Qiangyou Shi
- Department of Otolaryngology Head and Neck Surgery, Gansu Maternal and Child Health Care Hospital, 730050 Lanzhou, Gansu, China
| | - Chao Long
- Yueyang City Central Hospital Otolaryngology Head and Neck Surgery, 414000 Yueyang, Hunan, China
| | - Yu Zhou
- Yinchuan First People's Hospital, Otolaryngology Head and Neck Surgery Hospital, 750000 Yinchuan, Ningxia, China
| | - Ruixia Ma
- Yinchuan First People's Hospital, Otolaryngology Head and Neck Surgery Hospital, 750000 Yinchuan, Ningxia, China
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Zhang Z, Westover D, Tang Z, Liu Y, Sun J, Sun Y, Zhang R, Wang X, Zhou S, Hesilaiti N, Xia Q, Du Z. Wnt/β-catenin signaling in the development and therapeutic resistance of non-small cell lung cancer. J Transl Med 2024; 22:565. [PMID: 38872189 PMCID: PMC11170811 DOI: 10.1186/s12967-024-05380-8] [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: 02/29/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024] Open
Abstract
Wnt/β-catenin signaling is a critical pathway that influences development and therapeutic response of non-small cell lung cancer (NSCLC). In recent years, many Wnt regulators, including proteins, miRNAs, lncRNAs, and circRNAs, have been found to promote or inhibit signaling by acting on Wnt proteins, receptors, signal transducers and transcriptional effectors. The identification of these regulators and their underlying molecular mechanisms provides important implications for how to target this pathway therapeutically. In this review, we summarize recent studies of Wnt regulators in the development and therapeutic response of NSCLC.
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Affiliation(s)
- Zixu Zhang
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - David Westover
- High-Throughput Analytics, Analytical Research and Development, Merck & Co. Inc., Rahway, NJ, USA
| | - Zhantong Tang
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Yue Liu
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Jinghan Sun
- School of Life Science and Technology, Southeast University, Nanjing, 210018, China
| | - Yunxi Sun
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Runqing Zhang
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Xingyue Wang
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Shihui Zhou
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Nigaerayi Hesilaiti
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Qi Xia
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Zhenfang Du
- Department of Genetic and Developmental Biology, School of Medicine, Southeast University, Nanjing, 210003, China.
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Wei G, Chen X, Ruan T, Ma X, Zhu X, Wen W, He D, Tao K, Wu C. Human gastric cancer progression and stabilization of ATG2B through RNF5 binding facilitated by autophagy-associated CircDHX8. Cell Death Dis 2024; 15:410. [PMID: 38866787 PMCID: PMC11169566 DOI: 10.1038/s41419-024-06782-8] [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: 01/11/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/14/2024]
Abstract
The role of circDHX8 in the interplay between autophagy and gastric cancer (GC) progression remains unclear. In this study, we investigated the mechanism underlying the role of hsa_circ_003899 (circDHX8) in the malignancy of GC. Differential expression of circRNAs between GC and normal tissues was determined using circle-seq and microarray datasets (GSE83521). These circRNAs were validated using qPCR and Sanger sequencing. The function of circDHX8 was investigated through interference with circDHX8 expression experiments using in vitro and in vivo functional assays. Western blotting, immunofluorescence, and transmission electron microscopy were used to establish whether circDHX8 promoted autophagy in GC cells. To elucidate the mechanism underlying the circDHX8-mediated regulation of autophagy, we performed bioinformatics analysis, RNA pull-down, mass spectrometry (MS), RNA immunoprecipitation (RIP), and other western Blot related experiments. Hsa_circ_0003899 (circDHX8) was identified as upregulated and shown to enhance the malignant progression in GC cells by promoting cellular autophagy. Mechanistically, circDHX8 increased ATG2B protein levels by preventing ubiquitin-mediated degradation, thereby facilitating cell proliferation and invasion in GC. Additionally, circDHX8 directly interacts with the E3 ubiquitin-protein ligase RNF5, inhibiting the RNF5-mediated degradation of ATG2B. Concurrently, ATG2B, an acetylated protein, is subjected to SIRT1-mediated deacetylation, enhancing its binding to RNF5. Consequently, we established a novel mechanism for the role of circDHX8 in the malignant progression of GC.
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Affiliation(s)
- Guanxin Wei
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiang Chen
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tuo Ruan
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xianxiong Ma
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiuxian Zhu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wenhao Wen
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Danzeng He
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Kaixiong Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chuanqing Wu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Zhang X, Yuan Y, Wang X, Wang H, Zhang L, He J. CircWHSC1 (CircNSD2): A Novel Circular RNA in Multiple Cancers. Clin Med Insights Oncol 2024; 18:11795549241254781. [PMID: 38855031 PMCID: PMC11159554 DOI: 10.1177/11795549241254781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 04/25/2024] [Indexed: 06/11/2024] Open
Abstract
Circular RNAs (circRNAs) are a type of non-coding RNA (ncRNA) that possesses a unique single-stranded circular structure. They are primarily formed through alternative splicing of pre-mRNA (messenger RNA). The primary biological function of circRNAs is to regulate gene expression at both the transcriptional and post-transcriptional levels. Recent studies have increasingly demonstrated a close association between the dysregulation of circRNAs and the progression of diverse cancers, where they can function as either tumor suppressors or oncogenes. circWHSC1 (circNSD2) is a circular ncRNA that originates from the first 2 exons of the Wolf-Hirschhorn syndrome candidate gene (WHSC1). As Chen 2019 discovery that circWHSC1 (circNSD2) functions as a sponge for miRNAs and promotes cancer, this circRNA has garnered significant interest among researchers. circWHSC1 (circNSD2) has been found to be up-regulated in various malignant tumors, including nasopharyngeal carcinoma, lung cancer, breast cancer, liver cancer, colorectal cancer, ovarian cancer, cervical cancer, and endometrial cancer. It exerts its effects on cancer by either inhibiting or promoting the expression of related genes through direct or indirect pathways, ultimately affecting cancer proliferation, invasion, and prognosis. This article provides a comprehensive review and discussion of the biological roles of circWHSC1 (circNSD2) and its target genes in various cancers, as well as the latest research progress on related molecular biological regulatory mechanisms. Furthermore, the potential significance of circWHSC1 (circNSD2) in future clinical applications and transformations is thoroughly analyzed and discussed.
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Affiliation(s)
- Xiaomin Zhang
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Yiran Yuan
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Xiaoxiao Wang
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Heyue Wang
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Lei Zhang
- Department of Hepatobiliary Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
- Hepatic Surgery Center, Institute of Hepato-Pancreato-Biliary Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiefeng He
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
- Department of Hepatobiliary Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
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Kim JM, Kim WR, Park EG, Lee DH, Lee YJ, Shin HJ, Jeong HS, Roh HY, Kim HS. Exploring the Regulatory Landscape of Dementia: Insights from Non-Coding RNAs. Int J Mol Sci 2024; 25:6190. [PMID: 38892378 PMCID: PMC11172830 DOI: 10.3390/ijms25116190] [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: 04/26/2024] [Revised: 05/24/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024] Open
Abstract
Dementia, a multifaceted neurological syndrome characterized by cognitive decline, poses significant challenges to daily functioning. The main causes of dementia, including Alzheimer's disease (AD), frontotemporal dementia (FTD), Lewy body dementia (LBD), and vascular dementia (VD), have different symptoms and etiologies. Genetic regulators, specifically non-coding RNAs (ncRNAs) such as microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), are known to play important roles in dementia pathogenesis. MiRNAs, small non-coding RNAs, regulate gene expression by binding to the 3' untranslated regions of target messenger RNAs (mRNAs), while lncRNAs and circRNAs act as molecular sponges for miRNAs, thereby regulating gene expression. The emerging concept of competing endogenous RNA (ceRNA) interactions, involving lncRNAs and circRNAs as competitors for miRNA binding, has gained attention as potential biomarkers and therapeutic targets in dementia-related disorders. This review explores the regulatory roles of ncRNAs, particularly miRNAs, and the intricate dynamics of ceRNA interactions, providing insights into dementia pathogenesis and potential therapeutic avenues.
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Affiliation(s)
- Jung-min Kim
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Republic of Korea; (J.-m.K.); (W.R.K.); (E.G.P.); (D.H.L.); (Y.J.L.); (H.J.S.); (H.-s.J.)
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
| | - Woo Ryung Kim
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Republic of Korea; (J.-m.K.); (W.R.K.); (E.G.P.); (D.H.L.); (Y.J.L.); (H.J.S.); (H.-s.J.)
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
| | - Eun Gyung Park
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Republic of Korea; (J.-m.K.); (W.R.K.); (E.G.P.); (D.H.L.); (Y.J.L.); (H.J.S.); (H.-s.J.)
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
| | - Du Hyeong Lee
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Republic of Korea; (J.-m.K.); (W.R.K.); (E.G.P.); (D.H.L.); (Y.J.L.); (H.J.S.); (H.-s.J.)
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
| | - Yun Ju Lee
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Republic of Korea; (J.-m.K.); (W.R.K.); (E.G.P.); (D.H.L.); (Y.J.L.); (H.J.S.); (H.-s.J.)
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
| | - Hae Jin Shin
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Republic of Korea; (J.-m.K.); (W.R.K.); (E.G.P.); (D.H.L.); (Y.J.L.); (H.J.S.); (H.-s.J.)
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
| | - Hyeon-su Jeong
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Republic of Korea; (J.-m.K.); (W.R.K.); (E.G.P.); (D.H.L.); (Y.J.L.); (H.J.S.); (H.-s.J.)
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
| | - Hyun-Young Roh
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
- Department of Biological Sciences, College of Natural Sciences, Pusan National University, Busan 46241, Republic of Korea
| | - Heui-Soo Kim
- Institute of Systems Biology, Pusan National University, Busan 46241, Republic of Korea;
- Department of Biological Sciences, College of Natural Sciences, Pusan National University, Busan 46241, Republic of Korea
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Yu F, Fang P, Fang Y, Chen D. Circ_0027791 contributes to the growth and immune evasion of hepatocellular carcinoma via the miR-496/programmed cell death ligand 1 axis in an m6A-dependent manner. ENVIRONMENTAL TOXICOLOGY 2024; 39:3721-3733. [PMID: 38546290 DOI: 10.1002/tox.24188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/03/2024] [Accepted: 02/10/2024] [Indexed: 05/16/2024]
Abstract
Emerging evidence indicates the critical roles of circular RNAs in the development of multiple cancers, containing hepatocellular carcinoma (HCC). Herein, our present research reported the biological function and mechanism of circ_0027791 in HCC progression. Circ_0027791, microRNA-496 (miR-496), programmed cell death ligand 1 (PDL1), and methyltransferase-like 3 (METTL3) levels were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Cell viability, proliferation, invasion, and sphere formation ability were detected using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide, 5-ethynyl-2'-deoxyuridine, transwell, and sphere formation assays. Macrophage polarization was detected using flow cytometry assay. To understand the role of circ_0027791 during the immune escape, HCC cells were cocultured with peripheral blood mononuclear cells or cytokine-induced killer (CIK) cells in vitro. A xenograft mouse model was applied to assess the function of circ_0027791 in vivo. After prediction using circinteractome and miRDB, the binding between miR-496 and circ_0027791 or PDL1 was validated based on a dual-luciferase reporter assay. Interaction between METTL3 and circ_0027791 was determined using methylated RNA immunoprecipitation (MeRIP)-qPCR, RIP-qPCR, and RNA pull-down assays. Circ_0027791, PDL1, and METTL3 expression were upregulated, and miR-496 was decreased in HCC patients and cells. Moreover, circ_0027791 knockdown might repress proliferation, invasion, sphere formation, M2 macrophage polarization, and antitumor immune response. Circ_0027791 knockdown repressed HCC tumor growth in vivo. In mechanism, circ_0027791 functioned as a sponge for miR-496 to increase PDL1 expression. In addition, METTL3 mediated the m6A methylation of circ_0027791 and stabilized its expression. METTL3-induced circ_0027791 facilitated HCC cell progression partly regulating the miR-496/PDL1 axis, which provided a new prognostic and therapeutic marker for HCC.
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Affiliation(s)
- Furong Yu
- Department of Medical Technology, Anhui Medical College, Hefei, China
| | - Peifei Fang
- School of Basic Medicine, Anhui Medical College, Hefei, Anhi, China
| | - Yonghong Fang
- Department of Medical Technology, Anhui Medical College, Hefei, China
| | - Daojun Chen
- Department of Medical Technology, Anhui Medical College, Hefei, China
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He J, Yu K, Liang G, Shen W, Tian H. circ_0000592 facilitates the progression of esophageal squamous cell carcinoma via miR-155-5p/FZD5 axis. J Biochem Mol Toxicol 2024; 38:e23742. [PMID: 38780005 DOI: 10.1002/jbt.23742] [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: 04/30/2023] [Revised: 03/10/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024]
Abstract
Esophageal squamous cell carcinoma (ESCC) is one of the gastrointestinal malignancies with high prevalence and poor prognosis. Previous reports suggested that circular ribose nucleic acids might exert regulatory functions in ESCC. This study aims to explore the role of circ_0000592 in ESCC progression, providing novel insights into the diagnosis and therapeutic avenues for ESCC. The GSE131969 data set was utilized to assess circ_0000592 expression in ESCC. The validation was performed in the tumorous tissues of ESCC patients (n = 80) and human-immortalized ESCC cell lines. The correlation between circ_0000592 expression and prognosis was analyzed. The impact of circ_0000592 on ESCC cell activity was evaluated through downregulating circ_0000592, as well as encompassing cell viability, migration, and invasion abilities. The downstream pathway of circ_0000592 was explored by binding site prediction from the TargetScan database, followed by in vitro and in vivo experiments. An in vivo xenograft tumor model was established to highlight the role of circ_0000592 in ESCC. Patients with ESCC exhibited higher circ_0000592 expression levels compared to noncancerous patients, which were associated with reduced survival time, higher TNM stage, and increased lymph node metastasis. The circ_0000592 downregulation suppressed cell viability, migration, and invasion abilities in vitro. Mechanistically, circ_0000592 countered the inhibitory effects on the target gene Frizzled 5 (FZD5) through interactions with miR-155-5p. The overexpression of miR-155-5p curtailed the luciferase activity of circ_0000592 in ESCC cells, inhibiting downstream molecule FZD5 protein expression and subsequently mitigating the detrimental consequences of escalated circ_0000592 expression in ESCC cells. Consistently, circ_0000592 downregulation curbed proliferation and metastasis of ESCC tumors in vivo. In summary, circ_0000592 promoted the progress of ESCC by counteracting the inhibitory impact on FZD5 through its interaction with miR-155-5p. Together, our findings highlighted circ_0000592 as a prospective therapeutic target for ESCC.
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Affiliation(s)
- Jinxian He
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, China
| | - Kaizhong Yu
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, China
| | - Gaofeng Liang
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, China
| | - Weiyu Shen
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, China
| | - Hui Tian
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, China
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Zhao Z, Deng Y, Han J, Ma L, Zhu Y, Zhang H, He Z, Song Y. CircMALAT1 promotes cancer stem-like properties and chemoresistance via regulating Musashi-2/c-Myc axis in esophageal squamous cell carcinoma. MedComm (Beijing) 2024; 5:e612. [PMID: 38881674 PMCID: PMC11176741 DOI: 10.1002/mco2.612] [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: 09/26/2023] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 06/18/2024] Open
Abstract
The primary challenge in treating esophageal squamous cell carcinoma (ESCC) is resistance to chemotherapy. Cancer stem cell (CSC) is the root cause of tumor drug resistance. Therefore, targeting CSCs has been considered promising therapeutic strategy for tumor treatment. Here, we report that circMALAT1 was significantly upregulated in ESCC CSC-like cells and primary tumors from ESCC patients. Clinically, there was a positive correlation between circMALAT1 expression and ESCC stage and lymph node metastasis, as well as poor prognosis for ESCC patients. In vitro and in vivo functional studies revealed that circMALAT1 promoted CSC-like cells expansion, tumor growth, lung metastasis and drug resistance of ESCC. Mechanistically, circMALAT1 directly interacted with CSC-functional protein Musashi RNA Binding Protein 2 (MSI2). CircMALAT1 inhibited MSI2 ubiquitination by preventing it from interacting with β-transducin repeat containing protein (BTRC) E3 ubiquitin ligase. Also, circMALAT1 knockdown inhibited the expression of MSI2-regulating CSC-markers c-Myc in ESCC. Collectively, circMALAT1 modulated the ubiquitination and degradation of the MSI2 protein signaling with ESCC CSCs and accelerated malignant progression of ESCC. CircMALAT1 has the potential to serve as a biomarker for drug resistance and as a target for therapy in CSCs within ESCC.
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Affiliation(s)
- Zitong Zhao
- Key Laboratory of Cancer and Microbiome State Key Laboratory of Molecular Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Yingni Deng
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine Zunyi Medical University Zunyi China
| | - Jing Han
- Department of Oncology The Fourth Hospital of Hebei Medical University Shijiazhuang Hebei China
| | - Liying Ma
- Key Laboratory of Cancer and Microbiome State Key Laboratory of Molecular Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Yumeng Zhu
- Key Laboratory of Cancer and Microbiome State Key Laboratory of Molecular Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
- Beijing No.4 High School International Campus Beijing China
| | - Hua Zhang
- School of Continuing Education Chinese Academy of Medical Sciences & Peking Union Medical College Beijing China
| | - Zhixu He
- Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine Zunyi Medical University Zunyi China
| | - Yongmei Song
- Key Laboratory of Cancer and Microbiome State Key Laboratory of Molecular Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
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Qiu Y, Zhang S, Man C, Gong D, Xu Y, Fan Y, Wang X, Zhang W. Advances on Senescence-associated secretory phenotype regulated by circular RNAs in tumors. Ageing Res Rev 2024; 97:102287. [PMID: 38570142 DOI: 10.1016/j.arr.2024.102287] [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: 02/26/2024] [Revised: 03/23/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024]
Abstract
The components that comprise the senescence-associated secretory phenotype (SASP) include growth factors, proteases, chemokines, cytokines, and bioactive lipids. It drives secondary aging and disrupts tissue homeostasis, ultimately leading to tissue repair and regeneration loss. It has a two-way regulatory effect on tumor cells, resisting cancer occurrence and promoting its progression. A category of single-stranded circular non-coding RNA molecules known as circular RNAs (circRNAs) carries out a series of cellular activities, including sequestering miRNAs and modulating gene editing and expression. Research has demonstrated that a large number of circRNAs exhibit aberrant expression in pathological settings, and play a part in the onset and progress of cancer via modulating SASP factors. However, the research related to SASP and circRNAs in tumors is still in its infancy at this stage. This review centers on the bidirectional modulation of SASP and the role of circRNAs in regulating SASP factors across different types of tumors. The aim is to present novel perspectives for the diagnosis and therapeutic management of malignancies.
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Affiliation(s)
- Yue Qiu
- Cancer Institute, Affiliated People's Hospital of Jiangsu University, No 8, Dianli Road, Zhenjiang, Jiangsu 212002, People's Republic of China
| | - Shiqi Zhang
- Department of Gastroenterology, Affiliated Suqian First People's Hospital of Nanjing Medical University, No 120, Suzhi Road, Suqian, Jiangsu 223812, People's Republic of China
| | - Changfeng Man
- Cancer Institute, Affiliated People's Hospital of Jiangsu University, No 8, Dianli Road, Zhenjiang, Jiangsu 212002, People's Republic of China
| | - Dandan Gong
- Cancer Institute, Affiliated People's Hospital of Jiangsu University, No 8, Dianli Road, Zhenjiang, Jiangsu 212002, People's Republic of China
| | - Ying Xu
- Laboratory Center, Jiangsu University Affiliated People's Hospital, Zhenjiang, Jiangsu, People's Republic of China
| | - Yu Fan
- Cancer Institute, Affiliated People's Hospital of Jiangsu University, No 8, Dianli Road, Zhenjiang, Jiangsu 212002, People's Republic of China.
| | - Xiaoyan Wang
- Department of Gastroenterology, Affiliated Suqian First People's Hospital of Nanjing Medical University, No 120, Suzhi Road, Suqian, Jiangsu 223812, People's Republic of China.
| | - Wenbo Zhang
- General Surgery Department, Jiangsu University Affiliated People's Hospital, Zhenjiang, Jiangsu, People's Republic of China.
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Liu X, Yao X, Chen L. Expanding roles of circRNAs in cardiovascular diseases. Noncoding RNA Res 2024; 9:429-436. [PMID: 38511061 PMCID: PMC10950605 DOI: 10.1016/j.ncrna.2024.02.001] [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: 12/26/2023] [Revised: 02/01/2024] [Accepted: 02/04/2024] [Indexed: 03/22/2024] Open
Abstract
CircRNAs are a class of single-stranded RNAs characterized by covalently looped structures. Emerging advances have promoted our understanding of circRNA biogenesis, nuclear export, biological functions, and functional mechanisms. Roles of circRNAs in diverse diseases have been increasingly recognized in the past decade, with novel approaches in bioinformatics analysis and new strategies in modulating circRNA levels, which have made circRNAs the hot spot for therapeutic applications. Moreover, due to the intrinsic features of circRNAs such as high stability, conservation, and tissue-/stage-specific expression, circRNAs are believed to be promising prognostic and diagnostic markers for diseases. Aiming cardiovascular disease (CVD), one of the leading causes of mortality worldwide, we briefly summarize the current understanding of circRNAs, provide the recent progress in circRNA functions and functional mechanisms in CVD, and discuss the future perspectives both in circRNA research and therapeutics based on existing knowledge.
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Affiliation(s)
- Xu Liu
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
| | - Xuelin Yao
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Liang Chen
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
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Chai B, Wu Y, Yang H, Fan B, Cao S, Zhang X, Xie Y, Hu Z, Ma Z, Zhang Y, Pan W, Meng W, Meng J, Tian W, Zhang J, Li Y, Shao Y, Wang S. Tau Aggregation-Dependent Lipid Peroxide Accumulation Driven by the hsa_circ_0001546/14-3-3/CAMK2D/Tau Complex Inhibits Epithelial Ovarian Cancer Peritoneal Metastasis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310134. [PMID: 38634567 PMCID: PMC11186043 DOI: 10.1002/advs.202310134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/28/2024] [Indexed: 04/19/2024]
Abstract
Intraperitoneal dissemination is the main method of epithelial ovarian cancer (EOC) metastasis, which is related to poor prognosis and a high recurrence rate. Circular RNAs (circRNAs) are a novel class of endogenous RNAs with covalently closed loop structures that are implicated in the regulation of tumor development. In this study, hsa_circ_0001546 is downregulated in EOC primary and metastatic tissues vs. control tissues and this phenotype has a favorable effect on EOC OS and DFS. hsa_circ_0001546 can directly bind with 14-3-3 proteins to act as a chaperone molecule and has a limited positive effect on 14-3-3 protein stability. This complex recruits CAMK2D to induce the Ser324 phosphorylation of Tau proteins, changing the phosphorylation status of Tau bound to 14-3-3 and ultimately forming the hsa_circ_0001546/14-3-3/CAMK2D/Tau complex. The existence of this complex stimulates the production of Tau aggregation, which then induces the accumulation of lipid peroxides (LPOs) and causes LPO-dependent ferroptosis. In vivo, treatment with ferrostatin-1 and TRx0237 rescued the inhibitory effect of hsa_circ_0001546 on EOC cell spreading. Therefore, based on this results, ferroptosis caused by Tau aggregation occurs in EOC cells, which is not only in Alzheimer's disease- or Parkinson's disease-related cells and this kind of ferroptosis driven by the hsa_circ_0001546/14-3-3/CAMK2D/Tau complex is LPO-dependent rather than GPX4-dependent is hypothesized.
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Affiliation(s)
- BinShu Chai
- Department of GynecologyThe Third Affiliated Hospital of Kunming Medical UniversityYunnan Cancer HospitalYunnan Cancer CenterKunming650118China
- Lab for Noncoding RNA & CancerSchool of Life SciencesShanghai UniversityShanghai200444China
| | - Yong Wu
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Department of Gynecologic OncologyFudan University Shanghai Cancer CenterShanghai200032China
| | - HengHui Yang
- Department of GynecologyThe Third Affiliated Hospital of Kunming Medical UniversityYunnan Cancer HospitalYunnan Cancer CenterKunming650118China
| | - BiaoFeng Fan
- Department of GynecologyThe Third Affiliated Hospital of Kunming Medical UniversityYunnan Cancer HospitalYunnan Cancer CenterKunming650118China
| | - SiYu Cao
- Department of Gynecologic OncologyFudan University Shanghai Cancer CenterShanghai200032China
| | - XiaoFei Zhang
- Department of GynecologyShanghai First Maternity and Infant HospitalTongji University School of Medicine2699 West Gaoke RoadShanghai201204China
| | - YaQing Xie
- Department of GynecologyThe Third Affiliated Hospital of Kunming Medical UniversityYunnan Cancer HospitalYunnan Cancer CenterKunming650118China
| | - ZhiXiang Hu
- Department of Integrative OncologyFudan University Shanghai Cancer Centerand Institutes of Biomedical SciencesFudan UniversityShanghai200032China
| | - ZhongLiang Ma
- Lab for Noncoding RNA & CancerSchool of Life SciencesShanghai UniversityShanghai200444China
| | - YunKui Zhang
- Department of AnesthesiologyFudan University Shanghai Cancer CenterShanghai200032China
| | - Wei Pan
- Lab for Noncoding RNA & CancerSchool of Life SciencesShanghai UniversityShanghai200444China
| | - Wei Meng
- Lab for Noncoding RNA & CancerSchool of Life SciencesShanghai UniversityShanghai200444China
| | - Jiao Meng
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Cancer InstituteFudan University Shanghai Cancer Center, and Shanghai Fifth People's HospitalShanghai200032China
| | - WenJuan Tian
- Department of Gynecologic OncologyFudan University Shanghai Cancer CenterShanghai200032China
| | - JiaLi Zhang
- Cancer InstituteFudan University Shanghai Cancer Center, and Shanghai Fifth People's HospitalShanghai200032China
| | - YanLi Li
- Lab for Noncoding RNA & CancerSchool of Life SciencesShanghai UniversityShanghai200444China
| | - Yang Shao
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Cancer InstituteFudan University Shanghai Cancer Center, and Shanghai Fifth People's HospitalShanghai200032China
| | - ShaoJia Wang
- Department of GynecologyThe Third Affiliated Hospital of Kunming Medical UniversityYunnan Cancer HospitalYunnan Cancer CenterKunming650118China
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Li Y, Wang Z, Yang J, Sun Y, He Y, Wang Y, Chen X, Liang Y, Zhang N, Wang X, Zhao W, Hu G, Yang Q. CircTRIM1 encodes TRIM1-269aa to promote chemoresistance and metastasis of TNBC via enhancing CaM-dependent MARCKS translocation and PI3K/AKT/mTOR activation. Mol Cancer 2024; 23:102. [PMID: 38755678 PMCID: PMC11097450 DOI: 10.1186/s12943-024-02019-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/08/2024] [Indexed: 05/18/2024] Open
Abstract
Peptides and proteins encoded by noncanonical open reading frames (ORFs) of circRNAs have recently been recognized to play important roles in disease progression, but the biological functions and mechanisms of these peptides and proteins are largely unknown. Here, we identified a potential coding circular RNA, circTRIM1, that was upregulated in doxorubicin-resistant TNBC cells by intersecting transcriptome and translatome RNA-seq data, and its expression was correlated with clinicopathological characteristics and poor prognosis in patients with TNBC. CircTRIM1 possesses a functional IRES element along with an 810 nt ORF that can be translated into a novel endogenously expressed protein termed TRIM1-269aa. Functionally, we demonstrated that TRIM1-269aa, which is involved in the biological functions of circTRIM1, promoted chemoresistance and metastasis in TNBC cells both in vitro and in vivo. In addition, we found that TRIM1-269aa can be packaged into exosomes and transmitted between TNBC cells. Mechanistically, TRIM1-269aa enhanced the interaction between MARCKS and calmodulin, thus promoting the calmodulin-dependent translocation of MARCKS, which further initiated the activation of the PI3K/AKT/mTOR pathway. Overall, circTRIM1, which encodes TRIM1-269aa, promoted TNBC chemoresistance and metastasis by enhancing MARCKS translocation and PI3K/AKT/mTOR activation. Our investigation has yielded novel insights into the roles of protein-coding circRNAs and supported circTRIM1/TRIM1-269aa as a novel promising prognostic and therapeutic target for patients with TNBC.
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Affiliation(s)
- Yaming Li
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Zekun Wang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Jingwen Yang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Yuhan Sun
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Yinqiao He
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Yuping Wang
- School of Basic Medicine, Jining Medical College, Jining, Shandong, 272067, China
| | - Xi Chen
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Yiran Liang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Ning Zhang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Xiaolong Wang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Wenjing Zhao
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China
| | - Guohong Hu
- Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Qifeng Yang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China.
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, China.
- Research Institute of Breast Cancer, Shandong University, Jinan, Shandong, 250012, China.
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Wang S, Zhu X, Hao Y, Su TT, Shi W. ALKBH5-mediated m6A modification of circFOXP1 promotes gastric cancer progression by regulating SOX4 expression and sponging miR-338-3p. Commun Biol 2024; 7:565. [PMID: 38745044 PMCID: PMC11094028 DOI: 10.1038/s42003-024-06274-7] [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: 11/01/2023] [Accepted: 05/01/2024] [Indexed: 05/16/2024] Open
Abstract
Circular RNAs (circRNAs) have recently been suggested as potential functional modulators of cellular physiology processes in gastric cancer (GC). In this study, we demonstrated that circFOXP1 was more highly expressed in GC tissues. High circFOXP1 expression was positively associated with tumor size, lymph node metastasis, TNM stage, and poor prognosis in patients with GC. Cox multivariate analysis revealed that higher circFOXP1 expression was an independent risk factor for disease-free survival (DFS) and overall survival (OS) in GC patients. Functional studies showed that increased circFOXP1 expression promoted cell proliferation, cell invasion, and cell cycle progression in GC in vitro. In vivo, the knockdown of circFOXP1 inhibited tumor growth. Mechanistically, we observed ALKBH5-mediated m6A modification of circFOXP1 and circFOXP1 promoted GC progression by regulating SOX4 expression and sponging miR-338-3p in GC cells. Thus, our findings highlight that circFOXP1 could serve as a novel diagnostic and prognostic biomarker and potential therapeutic target for GC.
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Affiliation(s)
- Shouhua Wang
- Department of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, 200092, China.
| | - Xiang Zhu
- Department of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, 200092, China
| | - Yuan Hao
- Department of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, 200092, China
| | - Ting Ting Su
- Department of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, 200092, China
| | - Weibin Shi
- Department of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, 200092, China.
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Ashrafizadeh M, Dai J, Torabian P, Nabavi N, Aref AR, Aljabali AAA, Tambuwala M, Zhu M. Circular RNAs in EMT-driven metastasis regulation: modulation of cancer cell plasticity, tumorigenesis and therapy resistance. Cell Mol Life Sci 2024; 81:214. [PMID: 38733529 PMCID: PMC11088560 DOI: 10.1007/s00018-024-05236-w] [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: 12/05/2023] [Revised: 03/05/2024] [Accepted: 04/03/2024] [Indexed: 05/13/2024]
Abstract
The non-coding RNAs comprise a large part of human genome lack of capacity in encoding functional proteins. Among various members of non-coding RNAs, the circular RNAs (circRNAs) have been of importance in the pathogenesis of human diseases, especially cancer. The circRNAs have a unique closed loop structure and due to their stability, they are potential diagnostic and prognostic factors in cancer. The increasing evidences have highlighted the role of circRNAs in the modulation of proliferation and metastasis of cancer cells. On the other hand, metastasis has been responsible for up to 90% of cancer-related deaths in patients, requiring more investigation regarding the underlying mechanisms modulating this mechanism. EMT enhances metastasis and invasion of tumor cells, and can trigger resistance to therapy. The cells demonstrate dynamic changes during EMT including transformation from epithelial phenotype into mesenchymal phenotype and increase in N-cadherin and vimentin levels. The process of EMT is reversible and its reprogramming can disrupt the progression of tumor cells. The aim of current review is to understanding the interaction of circRNAs and EMT in human cancers and such interaction is beyond the regulation of cancer metastasis and can affect the response of tumor cells to chemotherapy and radiotherapy. The onco-suppressor circRNAs inhibit EMT, while the tumor-promoting circRNAs mediate EMT for acceleration of carcinogenesis. Moreover, the EMT-inducing transcription factors can be controlled by circRNAs in different human tumors.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Radiation Oncology, Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong 250000, China
- Department of General Surgery and Integrated Chinese and Western Medicine, Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Carson International Cancer Center, Shenzhen University General Hospital, Shenzhen University, Shenzhen, Guangdong, 518060, China
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Jingyuan Dai
- School of computer science and information systems, Northwest Missouri State University, Maryville, MO, 64468, USA.
| | - Pedram Torabian
- Cumming School of Medicine, Arnie Charbonneau Cancer Research Institute, University of Calgary, Calgary, AB, T2N 4Z6, Canada
- Department of Medical Sciences, University of Calgary, Calgary, AB, T2N 4Z6, Canada
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC, V6H3Z6, Canada
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Department of Translational Sciences, Xsphera Biosciences Inc. Boston, Boston, MA, USA
| | - Alaa A A Aljabali
- Faculty of Pharmacy, Department of Pharmaceutics and Pharmaceutical Technology, Yarmouk University, Irbid, Jordan
| | - Murtaza Tambuwala
- Lincoln Medical School, University of Lincoln, Brayford Pool Campus, Lincoln, LN6 7TS, UK.
- College of Pharmacy, Ras Al Khaimah Medical and Health Sciences University, Ras Al Khaimah, United Arab Emirates.
| | - Minglin Zhu
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
- Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, Hubei, 430071, China.
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Feng Y, Zhang T, Liu H. circPDK1 competitively binds miR-4731-5p to mediate GIGYF1 expression and increase paclitaxel sensitivity in non-small cell lung cancer. Discov Oncol 2024; 15:157. [PMID: 38733530 PMCID: PMC11088590 DOI: 10.1007/s12672-024-01003-2] [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: 11/27/2023] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
OBJECTIVE To investigate the action of circPDK1 in paclitaxel (PTX) resistance in non-small cell lung cancer (NSCLC). METHODS circPDK1, miR-4731-5p, and GIGYF1 levels were determined by RT-qPCR and Western blot. Cell proliferation was detected by CCK-8 and colony formation assay, apoptosis by flow cytometry, invasion by Transwell assay. The targeting relationship between miR-4731-5p and circPDK1 or GIGYF1 was confirmed by dual luciferase reporter gene and RIP assay. A xenograft tumor model was established to determine the role of circPDK1 in PTX resistance. RESULTS circPDK1 was overexpressed in PTX-resistant NSCLC, and depleting circPDK1 hampered proliferation and invasion of PTX-resistant cells, activated apoptosis, and improved PTX sensitivity. circPDK1 bound to miR-4731-5p, and increasing miR-4731-5p expression salvaged the effect of circPDK1 depletion on PTX resistance. miR-4731-5p directly targeted GIGYF1, and upregulating GIGYF1 offset the promoting effect of circPDK1 knockdown on PTX sensitivity. NSCLC tumor growth was inhibited and PTX sensitivity improved when circPDK1 was suppressed. CONCLUSION Depleting circPDK1 promotes PTX sensitivity of NSCLC cells via miR-4731-5p/GIGYF1 axis, thereby inhibiting NSCLC pregnancy.
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Affiliation(s)
- YunYin Feng
- Department of Respiratory, Kaihua County Traditional Chinese Medicine Hospital, No.10 Zhongshan Road, Qinyang Office, Quzhou City, 324000, Zhejiang Province, China.
| | - TaoLong Zhang
- Department of Gastroenterology, Kaihua County Traditional Chinese Medicine Hospital, Quzhou City, 324300, Zhejiang Province, China
| | - Hong Liu
- Department of Respiratory, Kaihua County Traditional Chinese Medicine Hospital, No.10 Zhongshan Road, Qinyang Office, Quzhou City, 324000, Zhejiang Province, China
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Yin C, Yu J, Liu G, He J, Wu P. Riddle of the Sphinx: Emerging role of circular RNAs in cervical cancer. Pathol Res Pract 2024; 257:155315. [PMID: 38653090 DOI: 10.1016/j.prp.2024.155315] [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: 01/08/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Cervical cancer is a prominent cause of cancer-related mortality among women, with recent attention directed toward exploring the involvement of circular RNAs (circRNAs) in this particular cancer. CircRNAs, characterized by a covalently closed loop structure, belong to a class of single-stranded non-coding RNA (ncRNA) molecules that play crucial roles in cancer development and progression through diverse mechanisms. The abnormal expression of circRNAs in vivo is significantly associated with the development of cervical cancer. Notably, circRNAs actively interact with miRNAs in cervical cancer, leading to the regulation of diverse signaling pathways, and they can contribute to cancer hallmarks such as self-sufficiency in growth signals, insensitivity to antigrowth signals, limitless proliferation, evading apoptosis, tissue invasion and metastasis, and sustained angiogenesis. Moreover, the distinctive biomedical attributes exhibited by circRNAs, including their abundance, conservation, and stability in body fluids, position them as promising biomarkers for various cancers. In this review, we elucidate the tremendous potential of circRNAs as diagnostic markers or therapeutic targets in cervical cancer by expounding upon their biogenesis, characteristics, functions, and databases, highlighting the novel advances in the signaling pathways associated with circRNAs in cervical cancer.
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Affiliation(s)
- Caiyan Yin
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Hengyang Maternal and Child Health Hospital, Hengyang, Hunan 421001, China
| | - Jianwei Yu
- Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Gaohua Liu
- The First Affiliated Hospital, Institute of Clinical Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Jun He
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
| | - Peng Wu
- The Affiliated Nanhua Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Hengyang Maternal and Child Health Hospital, Hengyang, Hunan 421001, China.
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Qin C, Liu S, Chen W, Xue D, Guo T, Wu B. HuR-induced circ_0082319 contributes to hepatocellular carcinoma by elevating PTK2 through miR-505-3p. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:3111-3126. [PMID: 37878047 DOI: 10.1007/s00210-023-02793-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/13/2023] [Indexed: 10/26/2023]
Abstract
The aim of the present research is to explore the biological function and mechanism of circ_0082319 in HCC progression. Circ_0082319, microRNA-505-3p (miR-505-3p), protein tyrosine kinase 2 (PTK2), and human antigen R (HuR, also known as ELAVL1) level were detected by real-time quantitative polymerase chain reaction. Cell viability, proliferation, apoptosis, invasion, and angiogenesis were measured using (4-5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, 5-ethynyl-2'-deoxyuridine (EdU), flow cytometry, transwell, and tube formation assays. Protein levels of c-Myc, MMP2, PTK2, and HuR were examined using western blot. The glycolysis levels were assessed using specific kits. Binding between miR-505-3p and circ_0082319 or PTK2 was predicted by Starbase and verified by a dual-luciferase reporter and RNA immunoprecipitation assays. The biological role of circ_0082319 on HCC tumor growth was examined using xenograft tumor model in vivo. Circ_0082319, PTK2, and HuR were highly expressed, and miR-505-3p was reduced in HCC samples and cell lines. Moreover, the knockdown of circ_0082319 might repress HCC cell proliferation, invasion, angiogenesis, and induce apoptosis in vitro. In mechanism, circ_0082319 served as a sponge of miR-505-3p to regulate PTK2 expression. HuR expedited circ_0082319 expression in HCC cells. HuR-mediated circ_0082319 might accelerate HCC cell proliferation, invasion, angiogenesis, and suppress apoptosis by the miR-505-3p/PTK2 axis, hinting at a promising therapeutic target for HCC treatment.
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Affiliation(s)
- Chuntang Qin
- Department of Interventional, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Democratic South Road 17, Jiefang District, Jiaozuo, 454000, China.
| | - Shuyan Liu
- Department of Endocrinology, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Jiaozuo, 454000, China
| | - Weibin Chen
- Department of Interventional, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Democratic South Road 17, Jiefang District, Jiaozuo, 454000, China
| | - Dan Xue
- Department of Interventional, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Democratic South Road 17, Jiefang District, Jiaozuo, 454000, China
| | - Tianli Guo
- Department of Interventional, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Democratic South Road 17, Jiefang District, Jiaozuo, 454000, China
| | - Baojiang Wu
- Department of Interventional, The First Affiliated Hospital of Henan Polytechnic University (Jiaozuo Second People's Hospital), Democratic South Road 17, Jiefang District, Jiaozuo, 454000, China
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Sun X, Zhao X, Xu Y, Yan Y, Han L, Wei M, He M. Potential therapeutic strategy for cancer: Multi-dimensional cross-talk between circRNAs and parental genes. Cancer Lett 2024; 588:216794. [PMID: 38453043 DOI: 10.1016/j.canlet.2024.216794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
In many ways, circular RNAs (circRNAs) have been demonstrated to be crucial in the onset and advancement of cancer throughout the last ten years and have become a new focus of intense research in the field of RNAs. Accumulating studies have demonstrated that circRNAs can regulate parental gene expression via a variety of biological pathways. Furthermore, research into the complex interactions between circRNAs and their parental genes will shed light on their biological roles and open up new avenues for circRNAs' potential clinical translational uses. However, to date, multi-dimensional cross-talk between circRNAs and parental genes have not been systematically elucidated. Particularly intriguing is circRNA's exploration of tumor targeting, and potential therapeutic uses based on the parental gene regulation perspective. Here, we discuss their biogenesis, take a fresh look at the molecular mechanisms through which circRNAs control the expression of their parental genes in cancer. We further highlight We further highlight the latest circRNA clinical translational applications, including prognostic diagnostic markers, cancer vaccines, gDNA, and so on. Demonstrating the potential benefits and future applications of circRNA therapy.
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Affiliation(s)
- Xiaoyu Sun
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
| | - Xinyi Zhao
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
| | - Yan Xu
- Department of Urology, The First Hospital of China Medical University, Shenyang, China.
| | - Yuanyuan Yan
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
| | - Li Han
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
| | - Minjie Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China; Liaoning Medical Diagnosis and Treatment Center, Liaoning Province, China.
| | - Miao He
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
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Wei Z, Zhang C, Song Y, Han D, Liu J, Song X, Chao F, Wang S, Xu G, Chen G. CircUBE3A(2,3,4,5) promotes adenylate-uridylate-rich binding factor 1 nuclear translocation to suppress prostate cancer metastasis. Cancer Lett 2024; 588:216743. [PMID: 38423246 DOI: 10.1016/j.canlet.2024.216743] [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: 11/13/2023] [Revised: 02/07/2024] [Accepted: 02/18/2024] [Indexed: 03/02/2024]
Abstract
Metastatic progression is the primary cause of mortality in prostate cancer (PCa) patients. Although circular RNAs (circRNAs) have been implicated in cancer progression and metastasis, our current understanding of their role in PCa metastasis remains limited. In this study, we identified that circUBE3A(2,3,4,5), which originated from exons 2, 3, 4 and 5 of the human ubiquitin-protein ligase E3A (UBE3A) gene, was specifically downregulated in PCa tissues and correlated with the Gleason score, bone metastasis, and D'Amico risk classification. Through the in vitro and in vivo experiments, we demonstrated that overexpression of circUBE3A(2,3,4,5) inhibited PCa cell migration, invasion, metastasis, and proliferation. Mechanistically, circUBE3A(2,3,4,5) was found to bind to adenylate-uridylate-rich binding factor 1 (AUF1), promoting the translocation of AUF1 into the nucleus. This led to decreased AUF1 in the cytoplasm, resulting in methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) mRNA instability and a subsequent reduction at the protein level. The downregulation of MTHFD2 further inhibited vimentin expression, thereby suppressing PCa cell epithelial-mesenchymal transition. Additionally, two pairs of the short-inverted repeats (TSIRs) in flanking introns were identified to synergistically facilitate the generation of circUBE3A(2,3,4,5) and other circRNAs. In summary, TSIRs-induced circUBE3A(2,3,4,5) acts as a suppressor of PCa metastasis by enhancing AUF1 nuclear translocation, reducing MTHFD2, and subsequently inhibiting vimentin expression. This study characterizes circUBE3A(2,3,4,5) as a functional circRNA and proposes it as a highly promising target for preventing PCa metastasis.
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Affiliation(s)
- Ziwei Wei
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Cong Zhang
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China; Department of Urology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Yufeng Song
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Dunsheng Han
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Jinke Liu
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Xiaoming Song
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Fan Chao
- Department of Urology, Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, 361015, Fujian, China
| | - Shiyu Wang
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 201508, Shanghai, China.
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 201508, Shanghai, China.
| | - Gang Chen
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China.
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Liu Q, Li S. Exosomal circRNAs: Novel biomarkers and therapeutic targets for urinary tumors. Cancer Lett 2024; 588:216759. [PMID: 38417667 DOI: 10.1016/j.canlet.2024.216759] [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: 11/06/2023] [Revised: 02/06/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
Exosomal circRNAs have emerged as promising biomarkers and therapeutic targets for urinary tumors. In this review, we explored the intricate role of exosomal circRNAs in urological cancers, focusing on their biological functions, dysregulation in tumors, and potential clinical applications. The review delves into the mechanisms by which exosomal circRNAs contribute to tumor progression and highlights their diagnostic and therapeutic implications. By synthesizing current research findings, we present a compelling case for the significance of exosomal circRNAs in the context of urinary tumors. Furthermore, the review discusses the challenges and opportunities associated with utilizing exosomal circRNAs as diagnostic tools and targeted therapeutic agents. There is a need for further research to elucidate the specific mechanisms of exosomal circRNA secretion and delivery, as well as to enhance the detection methods for clinical translational applications. Overall, this comprehensive review underscores the pivotal role of exosomal circRNAs in urinary tumors and underscores their potential as valuable biomarkers and therapeutic tools in the management of urological cancers.
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Affiliation(s)
- Qiang Liu
- Department of Urology, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China
| | - Shenglong Li
- Second Ward of Bone and Soft Tissue Tumor Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning Province, 110042, China; The Liaoning Provincial Key Laboratory of Interdisciplinary Research on Gastrointestinal Tumor Combining Medicine with Engineering, Shenyang, Liaoning Province, 110042, China.
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Wang C, Yang X. CircRAPGEF5 sponges miR-582-3p and targets KIF3A to regulate bladder cancer cell proliferation, migration and invasion. Int Immunopharmacol 2024; 131:111613. [PMID: 38489970 DOI: 10.1016/j.intimp.2024.111613] [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: 12/01/2023] [Revised: 01/26/2024] [Accepted: 01/28/2024] [Indexed: 03/17/2024]
Abstract
BACKGROUND Bladder cancer (BCa) is a common malignant disease with high recurrence and poor prognosis. Several circular RNAs (circRNAs) have been found to be associated with the malignant progression of bladder cancer (BCa). Here, the aim of this study was to investigate the expression, role and mechanism of circRAPGEF5 in BCa progression. METHODS Quantitative real-time PCR (qRT-PCR) and immunoblotting were used to detect gene and protein expression levels. In vitro functional studies were performed using CCK-8, colony formation, wound healing and Transwell assays, respectively, and a mouse xenograft tumor model was established to perform in vivo experiments. Bioinformatic predictions as well as luciferase reporter assays and RNA pull-down assays were used to probe circRAPGEF5-mediated competitive endogenous RNA (ceRNA) network. RESULTS CircRAPGEF5 was significantly overexpressed in BCa patients (p < 0.05), indicating a potential unsatisfactory prognosis. Functionally, knockdown of circRAPGEF5 inhibited the growth, migration and invasion of BCa cells in vitro (p < 0.05), as well as BCa growth in vivo (p < 0.05). Mechanistically, circRAPGEF5 acted as a sponge for miR-582-3p and targeted kinesin family member 3A (KIF3A). In addition, rescue experiments showed that inhibition of miR-582-3p or overexpression of KIF3A reversed the anticancer effects of circRAPGEF5 knockdown on BCa cells (p < 0.05). CONCLUSION Silencing circRAPGEF5 inhibits BCa proliferation, migration and invasion via the miR-582-3p/KIF3A axis, demonstrating a promising target for BCa-targeted therapy.
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Affiliation(s)
- Chao Wang
- Department of Urology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, Liaoning Province, China
| | - Xianxu Yang
- Department of Urology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, Liaoning Province, China.
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Liu Y, Jiang H, Hu K, Zou H, Zhang W, Liu J, Jian X. CircPRMT5 promotes progression of osteosarcoma by recruiting CNBP to regulate the translation and stability of CDK6 mRNA. PLoS One 2024; 19:e0298947. [PMID: 38626179 PMCID: PMC11020494 DOI: 10.1371/journal.pone.0298947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 02/01/2024] [Indexed: 04/18/2024] Open
Abstract
Research has demonstrated that circular RNAs (circRNAs) exert critical functions in the occurrence and progression of numerous malignant tumors. CircPRMT5 was recently reported to be involved in the pathogenesis of cancers. However, the potential role of circPRMT5 in osteosarcoma needs further investigation. In present study, our results suggested that circPRMT5 was highly upregulated in osteosarcoma cells and mainly localizes in the cytoplasm. CircPRMT5 promoted the proliferation, migration and invasion capacities of osteosarcoma cells, and suppressed cell apoptosis. Knockdown of circPRMT5 exerted the opposite effects. Mechanically, circPRMT5 promoted the binding of CNBP to CDK6 mRNA, which enhanced the stability of CDK6 mRNA and facilitated its translation, thereby promoting the progression of osteosarcoma. Knockdown of CDK6 reversed the promoting effect of circPRMT5 on osteosarcoma cells. These findings suggest that circPRMT5 promotes osteosarcoma cell malignant activity by recruiting CNBP to regulate the translation and stability of CDK6 mRNA. Thus, circPRMT5 may represent a promising therapeutic target for osteosarcoma.
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Affiliation(s)
- Yunlu Liu
- Department of Orthopedics, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Hongyan Jiang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Keli Hu
- Department of Orthopedics, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Hui Zou
- Department of Orthopedics, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Weiguo Zhang
- Department of Orthopedics, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Jiangtao Liu
- Department of Orthopedics, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Xiaofei Jian
- Department of Orthopedics, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
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He W, Zhang X, Zou Y, Li J, Chang L, He YC, Jin Q, Ye J. Effective synthesis of circRNA via a thermostable T7 RNA polymerase variant as the catalyst. Front Bioeng Biotechnol 2024; 12:1356354. [PMID: 38655387 PMCID: PMC11035883 DOI: 10.3389/fbioe.2024.1356354] [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: 12/15/2023] [Accepted: 03/04/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Circular RNAs (circRNAs) are endogenous noncoding RNAs (ncRNAs) with transcriptional lengths ranging from hundreds to thousands. circRNAs have attracted attention owing to their stable structure and ability to treat complicated diseases. Our objective was to create a one-step reaction for circRNA synthesis using wild-type T7 RNA polymerase as the catalyst. However, T7 RNA polymerase is thermally unstable, and we streamlined circRNA synthesis via consensus and folding free energy calculations for hotspot selection. Because of the thermal instability, the permuted intron and exon (PIE) method for circRNA synthesis is conducted via tandem catalysis with a transcription reaction at a low temperature and linear RNA precursor cyclization at a high temperature. Methods To streamline the process, a multisite mutant T7 RNA polymerase (S430P, N433T, S633P, F849I, F880Y, and G788A) with significantly improved thermostability was constructed, and G788A was used. Results The resulting mutant exhibited stable activity at 45°C for over an hour, enabling the implementation of a one-pot transcription and cyclization reaction. The simplified circRNA production process demonstrated an efficiency comparable to that of the conventional two-step reaction, with a cyclization rate exceeding 95% and reduced production of immunostimulatory dsRNA byproducts.
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Affiliation(s)
- Wei He
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
- Vazyme Biotech Co., Ltd, Nanjing, China
| | | | | | - Ji Li
- Vazyme Biotech Co., Ltd, Nanjing, China
| | - Le Chang
- Vazyme Biotech Co., Ltd, Nanjing, China
| | - Yu-Cai He
- School of Pharmacy, Changzhou University, Changzhou, China
| | | | - Jianren Ye
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
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