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Luo A, Liu H, Huang C, Wei S. Exosome-transmitted circular RNA circ-LMO7 facilitates the progression of osteosarcoma by regulating miR-21-5p/ARHGAP24 axis. Cancer Biol Ther 2024; 25:2343450. [PMID: 38742566 PMCID: PMC11095575 DOI: 10.1080/15384047.2024.2343450] [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: 11/04/2023] [Accepted: 04/11/2024] [Indexed: 05/16/2024] Open
Abstract
The potential function and mechanism of circRNAs in regulating malignant performances of Osteosarcoma (OS) cells have not been well investigated. The expression level of CircLMO7, miR-21-5p and ARHGAP24 were detected by RT-qPCR. The relationship between miR-21-5p and circ-LMO7, as well as between miR-21-5p and ARHGAP24, was predicted and examined through bioinformatics analysis and luciferase reporter gene experiments. Moreover, OS cell growth, invasion, migration, and apoptosis were detected using the cell counting kit-8 (CCK-8), transwell and flow cytometry assays, respectively. ARHGAP24 protein level was measured using western blotting. In present study, we choose to investigate the role and mechanism of circ-LOM7 on OS cell proliferation, migration and invasion. circ-LOM7 was found to be down-regulated in OS tissues and cell lines. Enforced expression of circ-LOM7 suppressed the growth, invasion, and migration of OS cells. In contrast, decreasing circ-LMO7 expression had opposite effects. Furthermore, miR-21-5p was predicted to be sponged by circ-LMO7, and had an opposite role of circ-LMO7 in OS. Moreover, ARHGAP24 served as miR-21-5p's downstream target. Mechanistically, circ-LMO7 was packed in exosomes and acted as a cancer-suppresser on OS by sponging miR-21-5p and upregulating the expression of ARHGAP24. The exosomal circ-LMO7 expression was significantly decreased in OS cell exosomes, and co-culture experiments showed that exosomal circ-LMO7 suppressed the proliferation ability of OS cells. Circ-LMO7 exerts as a tumor suppressor in OS, and the circ-LMO7/miR-21-5P/ARHGAP24 axis is involved in OS progression.
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Affiliation(s)
- Anyu Luo
- Department of Orthopedics, Hanyang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Hanlin Liu
- Department of Orthopedics, Hanyang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Chen Huang
- Department of Orthopedics, Hanyang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Sheng Wei
- Department of Orthopedics, Hanyang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei, China
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Hama Faraj GS, Hussen BM, Abdullah SR, Fatih Rasul M, Hajiesmaeili Y, Baniahmad A, Taheri M. Advanced approaches of the use of circRNAs as a replacement for cancer therapy. Noncoding RNA Res 2024; 9:811-830. [PMID: 38590433 PMCID: PMC10999493 DOI: 10.1016/j.ncrna.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/18/2024] [Accepted: 03/29/2024] [Indexed: 04/10/2024] Open
Abstract
Cancer is a broad name for a group of diseases in which abnormal cells grow out of control and are characterized by their complexity and recurrence. Although there has been progress in cancer therapy with the entry of precision medicine and immunotherapy, cancer incidence rates have increased globally. Non-coding RNAs in the form of circular RNAs (circRNAs) play crucial roles in the pathogenesis, clinical diagnosis, and therapy of different diseases, including cancer. According to recent studies, circRNAs appear to serve as accurate indicators and therapeutic targets for cancer treatment. However, circRNAs are promising candidates for cutting-edge cancer therapy because of their distinctive circular structure, stability, and wide range of capabilities; many challenges persist that decrease the applications of circRNA-based cancer therapeutics. Here, we explore the roles of circRNAs as a replacement for cancer therapy, highlight the main challenges facing circRNA-based cancer therapies, and discuss the key strategies to overcome these challenges to improve advanced innovative therapies based on circRNAs with long-term health effects.
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Affiliation(s)
- Goran Sedeeq Hama Faraj
- Department of Medical Laboratory Science, Komar University of Science and Technology, Sulaymaniyah, 46001, Iraq
| | - Bashdar Mahmud Hussen
- Department of Biomedical Sciences, College of Science, Cihan University-Erbil, Erbil, Kurdistan Region, 44001, Iraq
- Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, 44001, Iraq
| | - Snur Rasool Abdullah
- Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, 44001, Iraq
| | - Mohammed Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | | | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Song Y, Luo X, Yao L, Chen Y, Mao X. A Novel Mechanism Linking Melatonin, Ferroptosis and Microglia Polarization via the Circodz3/HuR Axis in Subarachnoid Hemorrhage. Neurochem Res 2024; 49:2556-2572. [PMID: 38888828 DOI: 10.1007/s11064-024-04193-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/23/2024] [Accepted: 06/06/2024] [Indexed: 06/20/2024]
Abstract
A subarachnoid hemorrhage (SAH) is life-threatening bleeding into the subarachnoid space that causes brain damage. Growing evidence has suggested that melatonin provides neuroprotection following SAH. Exploring the mechanisms underlying melatonin-mediated neuroprotection contributes to its clinical application in SAH. The plasma and cerebrospinal fluid (CSF) were collected from SAH patients, and SAH mice were established via pre-chiasmatic injection. Circodz3 expression, levels of IL-1β and TNF-α, brain water content, neurological and beam-waling scores were determined. Ferroptosis was evaluated by analyzing levels of iron, lipid ROS, MDA, and GSH. The colocalization of circodz3 and Iba-1 was analyzed by immunofluorescence staining. Interaction of circodz3 and HuR was determined with RNA pull-down and RNA immunoprecipitation assays. Herein, we found that circodz3 was highly abundant in SAH patients and mice. Colocalization of circodz3 and Iba-1 in the left hemisphere of SAH mice suggested the implication of circodz3 in regulating microglia activation following SAH. Melatonin alleviated brain edema, neurological impairment, and microglia activation and inhibited circodz3 expression in SAH mice. Moreover, melatonin inhibited M1 polarization, oxidative stress and ferroptosis and restrained circodz3 expression in primary microglia following SAH. These effects were abrogated by circodz3 overexpression. Circodz3 knockdown inhibited ferroptosis and M1 polarization of BV2 microglia after SAH. Circodz3 interacted with HuR to facilitate β-Trcp1-mediated ubiquitination and degradation, thus restraining the expression of SLC7A11 and GPX4. Collectively, melatonin exerted neuroprotection following SAH via inhibiting ferroptosis and M1 polarization through the circodz3/HuR axis. Our study suggests potential application of melatonin in the treatment of SAH.
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Affiliation(s)
- Yanju Song
- Department of Neurology, The Third Hospital of Changsha, No.176 Laodong West Road, Tianxin District, Changsha, 410015, Hunan Province, People's Republic of China
| | - Xin Luo
- Department of Neurology, The Third Hospital of Changsha, No.176 Laodong West Road, Tianxin District, Changsha, 410015, Hunan Province, People's Republic of China
| | - Liping Yao
- Department of Neurology, The Third Hospital of Changsha, No.176 Laodong West Road, Tianxin District, Changsha, 410015, Hunan Province, People's Republic of China
| | - YingChao Chen
- Department of Neurology, The Third Hospital of Changsha, No.176 Laodong West Road, Tianxin District, Changsha, 410015, Hunan Province, People's Republic of China
| | - Xinfa Mao
- Department of Neurology, The Third Hospital of Changsha, No.176 Laodong West Road, Tianxin District, Changsha, 410015, Hunan Province, People's Republic of China.
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4
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Zhang W, Xu C, Yang Z, Zhou J, Peng W, Zhang X, Li H, Qu S, Tao K. Circular RNAs in tumor immunity and immunotherapy. Mol Cancer 2024; 23:171. [PMID: 39169354 PMCID: PMC11337656 DOI: 10.1186/s12943-024-02082-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Accepted: 08/13/2024] [Indexed: 08/23/2024] Open
Abstract
Circular RNAs (circRNAs) are unique noncoding RNAs that have a closed and stable loop structure generated through backsplicing. Due to their conservation, stability and tissue specificity, circRNAs can potentially be used as diagnostic indicators and therapeutic targets for certain tumors. Many studies have shown that circRNAs can act as microRNA (miRNA) sponges, and engage in interactions with proteins and translation templates to regulate gene expression and signal transduction, thereby participating in the occurrence and development of a variety of malignant tumors. Immunotherapy has revolutionized the treatment of cancer. Early researches have indicated that circRNAs are involved in regulating tumor immune microenvironment and antitumor immunity. CircRNAs may have the potential to be important targets for increasing sensitivity to immunotherapy and expanding the population of patients who benefit from cancer immunotherapy. However, few studies have investigated the correlation between circRNAs and tumor immunity. In this review, we summarize the current researches on circRNAs involved in antitumor immune regulation through different mechanisms and their potential value in increasing immunotherapy efficacy with the goal of providing new targets for cancer immunotherapy.
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Affiliation(s)
- Wenjie Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- College of Life Sciences, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Chen Xu
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Zhipeng Yang
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- College of Life Sciences, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Jingshi Zhou
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Wei Peng
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xuan Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Haimin Li
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Shibin Qu
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
| | - Kaishan Tao
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
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Wu X, Fu M, Ge C, Zhou H, Huang H, Zhong M, Zhang M, Xu H, Zhu G, Hua W, Lv K, Yang H. m 6A-Mediated Upregulation of lncRNA CHASERR Promotes the Progression of Glioma by Modulating the miR-6893-3p/TRIM14 Axis. Mol Neurobiol 2024; 61:5418-5440. [PMID: 38193984 DOI: 10.1007/s12035-023-03911-w] [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] [Accepted: 12/28/2023] [Indexed: 01/10/2024]
Abstract
Long noncoding RNAs (lncRNAs) play crucial roles in tumor progression and are dysregulated in glioma. However, the functional roles of lncRNAs in glioma remain largely unknown. In this study, we utilized the TCGA (the Cancer Genome Atlas database) and GEPIA2 (Gene Expression Profiling Interactive Analysis 2) databases and observed the overexpression of lncRNA CHASERR in glioma tissues. We subsequently investigated this phenomenon in glioma cell lines. The effects of lncRNA CHASERR on glioma proliferation, migration, and invasion were analyzed using in vitro and in vivo experiments. Additionally, the regulatory mechanisms among PTEN/p-Akt/mTOR and Wnt/β-catenin, lncRNA CHASERR, Micro-RNA-6893-3p(miR-6893-3p), and tripartite motif containing14 (TRIM14) were investigated via bioinformatics analyses, quantitative real-time PCR (qRT-PCR), western blot (WB), RNA immunoprecipitation (RIP), dual luciferase reporter assay, fluorescence in situ hybridization (FISH), and RNA sequencing assays. RIP and RT-qRCR were used to analyze the regulatory effect of N6-methyladenosine(m6A) on the aberrantly expressed lncRNA CHASERR. High lncRNA CHASERR expression was observed in glioma tissues and was associated with unfavorable prognosis in glioma patients. Further functional assays showed that lncRNA CHASERR regulates glioma growth and metastasis in vitro and in vivo. Mechanistically, lncRNA CHASERR sponged miR-6893-3p to upregulate TRIM14 expression, thereby facilitating glioma progression. Additionally, the activation of PTEN/p-Akt/mTOR and Wnt/β-catenin pathways by lncRNA CHASERR, miR-6893-3p, and TRIM14 was found to regulate glioma progression. Moreover, the upregulation of lncRNA CHASERR was observed in response to N6-methyladenosine modification, which was facilitated by METTL3/YTHDF1-mediated RNA transcripts. This study elucidates the m6A/lncRNACHASERR/miR-6893-3p/TRIM14 pathway that contributes to glioma progression and underscores the potential of lncRNA CHASERR as a novel prognostic indicator and therapeutic target for glioma.
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Affiliation(s)
- Xingwei Wu
- Anhui Province Key Laboratory of Non-Coding RNA Basic Research and Clinical Transformation, Wannan Medical College, Wuhu, 241001, China
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui, China
- Central Laboratory, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China
| | - Minjie Fu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Neurosurgical Institute of Fudan University, Shanghai, China
| | - Chang Ge
- Department of Psychology, Zhejiang Sci-Tech University, Hangzhou, 310000, Zhejiang, China
| | - Hanyu Zhou
- Anhui Province Key Laboratory of Non-Coding RNA Basic Research and Clinical Transformation, Wannan Medical College, Wuhu, 241001, China
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui, China
- Central Laboratory, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China
- Department of Psychology, Zhejiang Sci-Tech University, Hangzhou, 310000, Zhejiang, China
| | - Haoyu Huang
- Anhui Province Key Laboratory of Non-Coding RNA Basic Research and Clinical Transformation, Wannan Medical College, Wuhu, 241001, China
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui, China
- Central Laboratory, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China
| | - Min Zhong
- Anhui Province Key Laboratory of Non-Coding RNA Basic Research and Clinical Transformation, Wannan Medical College, Wuhu, 241001, China
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui, China
- Central Laboratory, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China
- Department of Psychology, Zhejiang Sci-Tech University, Hangzhou, 310000, Zhejiang, China
| | - Mengying Zhang
- Anhui Province Key Laboratory of Non-Coding RNA Basic Research and Clinical Transformation, Wannan Medical College, Wuhu, 241001, China
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui, China
- Central Laboratory, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China
- Department of Psychology, Zhejiang Sci-Tech University, Hangzhou, 310000, Zhejiang, China
| | - Hao Xu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Guoping Zhu
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241001, Anhui, China.
- College of Life Sciences, Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, 241001, Anhui, China.
- Auhui Provincial Engineering Research Centre for Molecular Detection and Diagnostics, College of Life Sciences, Anhui Normal University, Wuhu, 241001, Anhui, China.
| | - Wei Hua
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Neurosurgical Institute of Fudan University, Shanghai, China.
| | - Kun Lv
- Anhui Province Key Laboratory of Non-Coding RNA Basic Research and Clinical Transformation, Wannan Medical College, Wuhu, 241001, China.
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui, China.
- Central Laboratory, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China.
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241001, Anhui, China.
- College of Life Sciences, Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, 241001, Anhui, China.
- Auhui Provincial Engineering Research Centre for Molecular Detection and Diagnostics, College of Life Sciences, Anhui Normal University, Wuhu, 241001, Anhui, China.
- Clinical Research Center for Critical Respiratory Medicine of Anhui Province, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China.
| | - Hui Yang
- Anhui Province Key Laboratory of Non-Coding RNA Basic Research and Clinical Transformation, Wannan Medical College, Wuhu, 241001, China.
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution (Yijishan Hospital of Wannan Medical College), Wuhu, 241001, Anhui, China.
- Central Laboratory, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China.
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241001, Anhui, China.
- College of Life Sciences, Key Laboratory of Biomedicine in Gene Diseases and Health of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, 241001, Anhui, China.
- Auhui Provincial Engineering Research Centre for Molecular Detection and Diagnostics, College of Life Sciences, Anhui Normal University, Wuhu, 241001, Anhui, China.
- Clinical Research Center for Critical Respiratory Medicine of Anhui Province, Yijishan Hospital, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China.
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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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7
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Xu F, Ren Y, Teng Y, Mu J, Tang J, Sundaram K, Zhang L, Park JW, Hwang JY, Yan J, Dryden G, Zhang H. Tryptophan As a New Member of RNA-Induced Silencing Complexes Prevents Colon Cancer Liver Metastasis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307937. [PMID: 39031551 PMCID: PMC11336974 DOI: 10.1002/advs.202307937] [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: 10/20/2023] [Revised: 05/15/2024] [Indexed: 07/22/2024]
Abstract
Essential amino acids (EAA) and microRNAs (miRs) control biological activity of a cell. Whether EAA regulates the activity of miR has never been demonstrated. Here, as proof-of-concept, a tryptophan (Trp, an EAA) complex containing Argonaute 2 (Ago2) and miRs including miR-193a (Trp/Ago2/miR-193a) is identified. Trp binds miR-193a-3p and interacts with Ago2. Trp/Ago2/miR-193a increases miR-193a-3p activity via enhancing Argonaute 2 (Ago2) RNase activity. Other miRs including miR-103 and miR-107 in the Trp complex enhance miR-193a activity by targeting the same genes. Mechanistically, the Trp/Ago2/miR-193a complex interacts with Trp-binding pockets of the PIWI domain of Ago2 to enhance Ago2 mediated miR activity. This newly formed Ago2/Trp/miR-193a-3p complex is more efficient than miR-193a-3p alone in inhibiting the expression of targeted genes and inhibiting colon cancer liver metastasis. The findings show that Trp regulates miR activity through communication with the RNA-induced silencing complexes (RISC), which provides the basis for tryptophan based miR therapy.
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Affiliation(s)
- Fangyi Xu
- Brown Cancer CenterUniversity of LouisvilleLouisvilleKY40202USA
- Department of Central LaboratoryCancer CenterThe affiliated Huaian No. 1 People's Hospital of Nanjing Medical UniversityHuai'an223300China
| | - Yi Ren
- Department of Breast and Thyroid SurgeryThe affiliated Huaian first People's Hospital of Nanjing Medical UniversityHuaianJiangsu223300China
| | - Yun Teng
- Brown Cancer CenterUniversity of LouisvilleLouisvilleKY40202USA
| | - Jingyao Mu
- Brown Cancer CenterUniversity of LouisvilleLouisvilleKY40202USA
| | - Jie Tang
- Department of Breast and Thyroid SurgeryThe affiliated Huaian first People's Hospital of Nanjing Medical UniversityHuaianJiangsu223300China
| | | | - Lifeng Zhang
- Brown Cancer CenterUniversity of LouisvilleLouisvilleKY40202USA
| | - Juw Won Park
- Department of Computer Science and EngineeringUniversity of LouisvilleLouisvilleKY40202USA
| | - Jae Yeon Hwang
- Department of Computer Science and EngineeringUniversity of LouisvilleLouisvilleKY40202USA
| | - Jun Yan
- Brown Cancer CenterUniversity of LouisvilleLouisvilleKY40202USA
| | - Gerald Dryden
- Robley Rex Veterans Affairs Medical CenterLouisvilleKY40206USA
| | - Huang‐Ge Zhang
- Brown Cancer CenterUniversity of LouisvilleLouisvilleKY40202USA
- Robley Rex Veterans Affairs Medical CenterLouisvilleKY40206USA
- Department of Microbiology & ImmunologyUniversity of LouisvilleLouisvilleKY40202USA
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8
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Aquino-Jarquin G. CircRNA knockdown based on antisense strategies. Drug Discov Today 2024; 29:104066. [PMID: 38908546 DOI: 10.1016/j.drudis.2024.104066] [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: 02/27/2024] [Revised: 06/12/2024] [Accepted: 06/18/2024] [Indexed: 06/24/2024]
Abstract
Circular RNAs (circRNAs) are a type of noncoding RNA that are formed by back-splicing from eukaryotic protein-coding genes. The most frequently reported and well-characterized function of circRNAs is their ability to act as molecular decoys, most often as miRNA and protein sponges. However, the functions of most circRNAs still need to be better understood. To more fully understand the biological relevance of validated circRNAs, knockdown functional analyses can be performed using antisense oligonucleotides, RNA interference (RNAi) experiments (e.g., targeting back-splicing junction sites), the clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated (Cas)-9 system (e.g., generating circRNA-specific knockouts), and CRISPR-Cas13 technology to effectively target circRNAs without affecting host genes. In this review, I summarize the feasibility and effectiveness of circRNA knockdown through antisense strategies for investigating the biological roles of circRNAs in cultured cells and animal models.
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Affiliation(s)
- Guillermo Aquino-Jarquin
- RNA Biology and Genome Editing Section. Genomics, Genetics, and Bioinformatics Research Laboratory. 'Federico Gómez' Children's Hospital of Mexico. Dr. Márquez 162, Doctores, Cuauhtémoc, CP 06720, CDMX, Mexico.
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9
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Yang N, Jiao M, Zhang Y, Mo S, Wang L, Liang J. Roles and mechanisms of circular RNA in respiratory system cancers. Front Oncol 2024; 14:1430051. [PMID: 39077467 PMCID: PMC11284073 DOI: 10.3389/fonc.2024.1430051] [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: 05/09/2024] [Accepted: 07/01/2024] [Indexed: 07/31/2024] Open
Abstract
Circular RNAs (circRNAs) constitute a class of endogenous non-coding RNAs (ncRNAs) that lack a 5'-ended cap and 3'-ended poly (A) tail and form a closed ring structure with covalent bonds. Due to its special structure, circRNA is resistant to Exonuclease R (RNaseR), making its distribution in the cytoplasm quite rich. Advanced high-throughput sequencing and bioinformatics methods have revealed that circRNA is highly conserved, stable, and disease- and tissue-specific. Furthermore, increasing research has confirmed that circRNA, as a driver or suppressor, regulates cancer onset and progression by modulating a series of pathophysiological mechanisms. As a result, circRNA has emerged as a clinical biomarker and therapeutic intervention target. This article reviews the biological functions and regulatory mechanisms of circRNA in the context of respiratory cancer onset and progression.
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Affiliation(s)
- Nan Yang
- School of Basic Medical, Gansu University of Chinese Medicine, Lanzhou, China
| | - Mengwen Jiao
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, China
| | - Yuewen Zhang
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, China
| | - Shaokang Mo
- Department of Obstetrics and Gynecology, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, China
| | - Ling Wang
- Department of Obstetrics and Gynecology, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, China
| | - Jianqing Liang
- School of Basic Medical, Gansu University of Chinese Medicine, Lanzhou, China
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10
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Rac M. Synthesis and Regulation of miRNA, Its Role in Oncogenesis, and Its Association with Colorectal Cancer Progression, Diagnosis, and Prognosis. Diagnostics (Basel) 2024; 14:1450. [PMID: 39001340 PMCID: PMC11241650 DOI: 10.3390/diagnostics14131450] [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: 05/20/2024] [Revised: 06/27/2024] [Accepted: 07/05/2024] [Indexed: 07/16/2024] Open
Abstract
The dysfunction of several types of regulators, including miRNAs, has recently attracted scientific attention for their role in cancer-associated changes in gene expression. MiRNAs are small RNAs of ~22 nt in length that do not encode protein information but play an important role in post-transcriptional mRNA regulation. Studies have shown that miRNAs are involved in tumour progression, including cell proliferation, cell cycle, apoptosis, and tumour angiogenesis and invasion, and play a complex and important role in the regulation of tumourigenesis. The detection of selected miRNAs may help in the early detection of cancer cells, and monitoring changes in their expression profile may serve as a prognostic factor in the course of the disease or its treatment. MiRNAs may serve as diagnostic and prognostic biomarkers, as well as potential therapeutic targets for colorectal cancer. In recent years, there has been increasing evidence for an epigenetic interaction between DNA methylation and miRNA expression in tumours. This article provides an overview of selected miRNAs, which are more frequently expressed in colorectal cancer cells, suggesting an oncogenic nature.
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Affiliation(s)
- Monika Rac
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
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11
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Wang H, Shui X, Zhang Z, He M, Tai S, Lin Y. Construction of m7G RNA modification-related prognostic model and prediction of immune therapy response in hepatocellular carcinoma. Transl Cancer Res 2024; 13:2799-2811. [PMID: 38988942 PMCID: PMC11231774 DOI: 10.21037/tcr-24-22] [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] [Accepted: 04/28/2024] [Indexed: 07/12/2024]
Abstract
Background RNA plays an important role in tumorigenesis. Changes in RNA may cause changes in the biological function. The N7-methylguanosine (m7G) methylation modification performs an integral function in tumor progression as the most widely existed RNA modification. Hepatocellular carcinoma (HCC) is among the greatest threats to human health worldwide. Low detection rates remain the main cause of advanced disease progression. Therefore, finding significant biomarkers for prognosis prediction and immune therapy response in HCC is valuable and urgently needed. Methods RNA expression and clinical data were acquired from The Cancer Genome Atlas (TCGA) database and the Gene Expression Omnibus (GEO) database. Different subtypes screening was finished by consensus cluster. Different expression was performed by R software. The results were validated by western blot (WB) methods. Genes with HCC prognostic potential were identified utilizing least absolute shrinkage and selection operator (LASSO) analyses. A prognosis model was established with the help of the risk score that we calculated. Related genes screening and protein-protein interactions (PPI) network construction were performed using the GeneMANIA database. Functional annotation was performed using the Database for Annotation, Visualization and Integrated Discovery (DAVID) databases. In addition, gene set enrichment analysis (GSEA) of key genes and immune infiltration status were both done by R software. Finally, the immune infiltration was performed by cibersort method and single sample GSEA (ssGSEA) method. The response of immune therapy was validated by Tumor Immune Dysfunction and Exclusion database (TIDE) and the immune therapy cohort in GEO database. Results We found that two different subtypes related with m7G RNA modification and four genes associated with m7G RNA modification were differentially expressed in the TCGA-Liver Hepatocellular Carcinoma (TCGA-LIHC) database. Additionally, to examine the value of these four genes in the HCC patients' prognoses according to the LASSO, we selected three genes, including WDR4, AGO2, and NCBP2, as prognostic related genes. Premised on the expression of these three genes, a risk score model and nomogram were constructed to provide a prediction of the HCC patients' prognoses. We performed functional annotation and created a PPI network based on the three genes (WDR4, NCBP2, and AGO2). Using R software, we performed the GSEA and immune regulation analyses. Finally, we predicted the relationship between the gene expression and the response of immune therapy. Conclusions Our study suggests that high expression of m7G RNA modification subtype is related with poor prognosis and immune response. WDR4, AGO2, and NCBP2 are key regulators of m7G RNA modification which can be clinically promising biomarkers that can be used to treat HCC. In addition, our risk score model was shown to have a strong link to OS in patients with HCC.
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Affiliation(s)
- Haoran Wang
- Department of Hepatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xian Shui
- Department of Hepatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zheng Zhang
- Department of Hepatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Meng He
- Department of Hepatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Sheng Tai
- Department of Hepatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yujia Lin
- Department of Hepatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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12
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Wang J, Hong M, Cheng Y, Wang X, Li D, Chen G, Bao B, Song J, Du X, Yang C, Zheng L, Tong Q. Targeting c-Myc transactivation by LMNA inhibits tRNA processing essential for malate-aspartate shuttle and tumour progression. Clin Transl Med 2024; 14:e1680. [PMID: 38769668 PMCID: PMC11106511 DOI: 10.1002/ctm2.1680] [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: 11/25/2023] [Revised: 03/28/2024] [Accepted: 04/19/2024] [Indexed: 05/22/2024] Open
Abstract
BACKGROUND A series of studies have demonstrated the emerging involvement of transfer RNA (tRNA) processing during the progression of tumours. Nevertheless, the roles and regulating mechanisms of tRNA processing genes in neuroblastoma (NB), the prevalent malignant tumour outside the brain in children, are yet unknown. METHODS Analysis of multi-omics results was conducted to identify crucial regulators of downstream tRNA processing genes. Co-immunoprecipitation and mass spectrometry methods were utilised to measure interaction between proteins. The impact of transcriptional regulators on expression of downstream genes was measured by dual-luciferase reporter, chromatin immunoprecipitation, western blotting and real-time quantitative reverse transcription-polymerase chain reaction (RT-PCR) methods. Studies have been conducted to reveal impact and mechanisms of transcriptional regulators on biological processes of NB. Survival differences were analysed using the log-rank test. RESULTS c-Myc was identified as a transcription factor driving tRNA processing gene expression and subsequent malate-aspartate shuttle (MAS) in NB cells. Mechanistically, c-Myc directly promoted the expression of glutamyl-prolyl-tRNA synthetase (EPRS) and leucyl-tRNA synthetase (LARS), resulting in translational up-regulation of glutamic-oxaloacetic transaminase 1 (GOT1) as well as malate dehydrogenase 1 (MDH1) via inhibiting general control nonrepressed 2 or activating mechanistic target of rapamycin signalling. Meanwhile, lamin A (LMNA) inhibited c-Myc transactivation via physical interaction, leading to suppression of MAS, aerobic glycolysis, tumourigenesis and aggressiveness. Pre-clinically, lobeline was discovered as a LMNA-binding compound to facilitate its interaction with c-Myc, which inhibited aminoacyl-tRNA synthetase expression, MAS and tumour progression of NB, as well as growth of organoid derived from c-Myc knock-in mice. Low levels of LMNA or elevated expression of c-Myc, EPRS, LARS, GOT1 or MDH1 were linked to a worse outcome and a shorter survival time of clinical NB patients. CONCLUSIONS These results suggest that targeting c-Myc transactivation by LMNA inhibits tRNA processing essential for MAS and tumour progression.
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Affiliation(s)
- Jianqun Wang
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Mei Hong
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Yang Cheng
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Xiaojing Wang
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
- Department of GeriatricsUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Dan Li
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Guo Chen
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Banghe Bao
- Department of PathologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Jiyu Song
- Department of PathologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Xinyi Du
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Chunhui Yang
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Liduan Zheng
- Department of PathologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
| | - Qiangsong Tong
- Department of Pediatric SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceP. R. China
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13
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Yu C, Zhao J, Cheng F, Chen J, Chen J, Xu H, Shi K, Xia K, Ding S, Wang K, Wang R, Chen Y, Li Y, Li H, Chen Q, Yu X, Shao F, Liang C, Li F. Silencing circATXN1 in Aging Nucleus Pulposus Cell Alleviates Intervertebral Disc Degeneration via Correcting Progerin Mislocalization. RESEARCH (WASHINGTON, D.C.) 2024; 7:0336. [PMID: 38533181 PMCID: PMC10964222 DOI: 10.34133/research.0336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 02/17/2024] [Indexed: 03/28/2024]
Abstract
Circular RNAs (circRNAs) play a critical regulatory role in degenerative diseases; however, their functions and therapeutic applications in intervertebral disc degeneration (IVDD) have not been explored. Here, we identified that a novel circATXN1 highly accumulates in aging nucleus pulposus cells (NPCs) accountable for IVDD. CircATXN1 accelerates cellular senescence, disrupts extracellular matrix organization, and inhibits mitochondrial respiration. Mechanistically, circATXN1, regulated by heterogeneous nuclear ribonucleoprotein A2B1-mediated splicing circularization, promotes progerin translocation from the cell nucleus to the cytoplasm and inhibits the expression of insulin-like growth factor 1 receptor (IGF-1R). To demonstrate the therapeutic potential of circATXN1, siRNA targeting the backsplice junction of circATNX1 was screened and delivered by tetrahedral framework nucleic acids (tFNAs) due to their unique compositional and tetrahedral structural features. Our siRNA delivery system demonstrates superior abilities to transfect aging cells, clear intracellular ROS, and enhanced biological safety. Using siRNA-tFNAs to silence circATXN1, aging NPCs exhibit reduced mislocalization of progerin in the cytoplasm and up-regulation of IGF-1R, thereby demonstrating a rejuvenated cellular phenotype and improved mitochondrial function. In vivo, administering an aging cell-adapted siRNA nucleic acid framework delivery system to progerin pathologically expressed premature aging mice (zmpste24-/-) can ameliorate the cellular matrix in the nucleus pulposus tissue, effectively delaying IVDD. This study not only identified circATXN1 functioning as a cell senescence promoter in IVDD for the first time, but also successfully demonstrated its therapeutic potential via a tFNA-based siRNA delivery strategy.
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Affiliation(s)
- Chao Yu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Jing Zhao
- Department of Chemistry,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
| | - Feng Cheng
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Jiangjie Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Jinyang Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Haibin Xu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Kesi Shi
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Kaishun Xia
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Siwen Ding
- Westlake Street Community Health Service Center, Hangzhou 310009, Zhejiang, PR China
| | - Kanbin Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Ronghao Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Yazhou Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Yi Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Hao Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Qixin Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Xiaohua Yu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Fangwei Shao
- Zhejiang University-University of Illinois at Urbana-Champaign Institute,
Zhejiang University, Haining 314400, Zhejiang, PR China
- Biomedical and Health Translational Research Centre,
Zhejiang University, Haining 314400, Zhejiang, PR China
| | - Chengzhen Liang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
| | - Fangcai Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Orthopedics Research Institute of Zhejiang University,
Zhejiang University, Hangzhou 310009, Zhejiang, PR China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
- Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou 310009, Zhejiang, PR China
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14
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Wang Y, Wang B, Cao W, Xu X. TGF-β-activated circRYK drives glioblastoma progression by increasing VLDLR mRNA expression and stability in a ceRNA- and RBP-dependent manner. J Exp Clin Cancer Res 2024; 43:73. [PMID: 38454465 PMCID: PMC10921701 DOI: 10.1186/s13046-024-03000-3] [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: 11/05/2023] [Accepted: 03/01/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND The TGF-β signalling pathway is intricately associated with the progression of glioblastoma (GBM). The objective of this study was to examine the role of circRNAs in the TGF-β signalling pathway. METHODS In our research, we used transcriptome analysis to search for circRNAs that were activated by TGF-β. After confirming the expression pattern of the selected circRYK, we carried out in vitro and in vivo cell function assays. The underlying mechanisms were analysed via RNA pull-down, luciferase reporter, and RNA immunoprecipitation assays. RESULTS CircRYK expression was markedly elevated in GBM, and this phenotype was strongly associated with a poor prognosis. Functionally, circRYK promotes epithelial-mesenchymal transition and GSC maintenance in GBM. Mechanistically, circRYK sponges miR-330-5p and promotes the expression of the oncogene VLDLR. In addition, circRYK could enhance the stability of VLDLR mRNA via the RNA-binding protein HuR. CONCLUSION Our findings show that TGF-β promotes epithelial-mesenchymal transition and GSC maintenance in GBM through the circRYK-VLDLR axis, which may provide a new therapeutic target for the treatment of GBM.
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Affiliation(s)
- Yuhang Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210000, China
| | - Binbin Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210000, China
| | - Wenping Cao
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210000, China.
| | - Xiupeng Xu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210000, China.
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15
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Chen W, Chen Z, Jia Y, Guo Y, Zheng L, Yao S, Shao Y, Li M, Mao R, Jiang Y. Circ_0008657 regulates lung DNA damage induced by hexavalent chromium through the miR-203a-3p/ATM axis. ENVIRONMENT INTERNATIONAL 2024; 185:108515. [PMID: 38394914 DOI: 10.1016/j.envint.2024.108515] [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: 09/28/2023] [Revised: 12/17/2023] [Accepted: 02/17/2024] [Indexed: 02/25/2024]
Abstract
Hexavalent chromium [Cr (VI)] is an important environmental pollutant and may cause lung injury when inhaled into the human body. Cr (VI) is genotoxic and can cause DNA damage, although the underlying epigenetic mechanisms remain unclear. To simulate the real-life workplace exposure to Cr (VI), we used a novel exposure dose calculation method. We evaluated the effect of Cr (VI) on DNA damage in human bronchial epithelial cells (16HBE and BEAS-2B) by calculating the equivalent real-time exposure dose of Cr (VI) (0 to 10 μM) in an environmental population. Comet experiments and olive tail moment measurements revealed increased DNA damage in cells exposed to Cr (VI). Cr (VI) treatment increased nuclear γ-H2AX foci and γ-H2AX protein expression, and caused DNA damage in the lung tissues of mice. An effective Cr (VI) dose (6 μM) was determined and used for cell treatment. Cr (VI) exposure upregulated circ_0008657, and knockdown of circ_0008657 decreased Cr (VI)-induced DNA damage, whereas circ_0008657 overexpression had the opposite effect. Mechanistically, we found that circ_0008657 binds to microRNA (miR)-203a-3p and subsequently regulates ATM serine/threonine kinase (ATM), a key protein involved in homologous recombination repair downstream of miR-203a-3p, thereby regulating DNA damage induced by Cr (VI). The present findings suggest that circ_0008657 competitively binds to miR-203a-3p to activate the ATM pathway and regulate the DNA damage response after environmental chemical exposure in vivo and in vitro.
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Affiliation(s)
- Wei Chen
- The Key Laboratory of Advanced Interdisciplinary Studies, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Zehao Chen
- The Key Laboratory of Advanced Interdisciplinary Studies, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Yangyang Jia
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Yaozheng Guo
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Liting Zheng
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Shuwei Yao
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Yueting Shao
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Meizhen Li
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Rulin Mao
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China
| | - Yiguo Jiang
- The Key Laboratory of Advanced Interdisciplinary Studies, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China.
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16
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Xie G, Lei B, Yin Z, Xu F, Liu X. Circ MTA2 Drives Gastric Cancer Progression through Suppressing MTA2 Degradation via Interacting with UCHL3. Int J Mol Sci 2024; 25:2817. [PMID: 38474064 DOI: 10.3390/ijms25052817] [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: 11/06/2023] [Revised: 01/31/2024] [Accepted: 02/10/2024] [Indexed: 03/14/2024] Open
Abstract
Our previous study has reported that metastasis-associated protein 2 (MTA2) plays essential roles in tumorigenesis and aggressiveness of gastric cancer (GC). However, the underlying molecular mechanisms of MTA2-mediated GC and its upstream regulation mechanism remain elusive. In this study, we identified a novel circular RNA (circRNA) generated from the MTA2 gene (circMTA2) as a crucial regulator in GC progression. CircMTA2 was highly expressed in GC tissues and cell lines, and circMTA2 promoted the proliferation, invasion, and metastasis of GC cells both in vitro and in vivo. Mechanistically, circMTA2 interacted with ubiquitin carboxyl-terminal hydrolase L3 (UCHL3) to restrain MTA2 ubiquitination and stabilize MTA2 protein expression, thereby facilitating tumor progression. Moreover, circMTA2 was mainly encapsulated and transported by exosomes to promote GC cell progression. Taken together, these findings uncover that circMTA2 suppresses MTA2 degradation by interacting with UCHL3, thereby promoting GC progression. In conclusion, we identified a cancer-promoting axis (circMTA2/UCHL3/MTA2) in GC progression, which paves the way for us to design and synthesize targeted inhibitors as well as combination therapies.
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Affiliation(s)
- Gengchen Xie
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Bo Lei
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhijie Yin
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Fei Xu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xinghua Liu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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17
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Ma Q, Yang F, Xiao B, Guo X. Emerging roles of circular RNAs in tumorigenesis, progression, and treatment of gastric cancer. J Transl Med 2024; 22:207. [PMID: 38414006 PMCID: PMC10897999 DOI: 10.1186/s12967-024-05001-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Accepted: 02/15/2024] [Indexed: 02/29/2024] Open
Abstract
With an estimated one million new cases reported annually, gastric cancer (GC) ranks as the fifth most diagnosed malignancy worldwide. The early detection of GC remains a major challenge, and the prognosis worsens either when patients develop resistance to chemotherapy or radiotherapy or when the cancer metastasizes. The precise pathogenesis underlying GC is not well understood, which further complicates its treatment. Circular RNAs (circRNAs), a recently discovered class of noncoding RNAs that originate from parental genes through "back-splicing", have been shown to play a key role in various biological processes in both eukaryotes and prokaryotes. CircRNAs have been linked to cardiovascular diseases, diabetes, hypertension, Alzheimer's disease, and the occurrence and progression of tumors. Prior studies have established that circRNAs play a crucial role in GC, impacting tumorigenesis, diagnosis, progression, and therapy resistance. This review aims to summarize how circRNAs contribute to GC tumorigenesis and progression, examine their roles in the development of drug resistance, discuss their potential as biotechnological drugs, and summarize their response to therapeutic drugs and microorganism in GC.
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Affiliation(s)
- Qiang Ma
- Department of Clinical Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, People's Republic of China
- Translational Medicine Research Center & School of Laboratory Medicine, North Sichuan Medical College, Nanchong, 637000, People's Republic of China
| | - Feifei Yang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Bin Xiao
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Xiaolan Guo
- Department of Clinical Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, People's Republic of China.
- Translational Medicine Research Center & School of Laboratory Medicine, North Sichuan Medical College, Nanchong, 637000, People's Republic of China.
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18
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Wang Q, Cheng B, Singh S, Tao Y, Xie Z, Qin F, Shi X, Xu J, Hu C, Tan W, Li H, Huang H. A protein-encoding CCDC7 circular RNA inhibits the progression of prostate cancer by up-regulating FLRT3. NPJ Precis Oncol 2024; 8:11. [PMID: 38225404 PMCID: PMC10789799 DOI: 10.1038/s41698-024-00503-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 01/04/2024] [Indexed: 01/17/2024] Open
Abstract
Circular RNAs (circRNAs) are a family of endogenous RNAs that have become a focus of biological research in recent years. Emerging evidence has revealed that circRNAs exert biological functions by acting as transcriptional regulators, microRNA sponges, and binding partners with RNA-binding proteins. However, few studies have identified coding circRNAs, which may lead to a hidden repertoire of proteins. In this study, we unexpectedly discovered a protein-encoding circular RNA circCCDC7(15,16,17,18,19) while we were searching for prostate cancer related chimeric RNAs. circCCDC7(15,16,17,18,19) is derived from exon 19 back spliced to exon 15 of the CCDC7 gene. It is significantly downregulated in patients with high Gleason score. Prostate cancer patients with decreased circCCDC7(15,16,17,18,19) expression have a worse prognosis, while linear CCDC7 had no such association. Overexpressed circCCDC7(15,16,17,18,19) inhibited prostate cancer cell migration, invasion, and viability, supporting classification of circCCDC7(15,16,17,18,19) as a bona fide tumor suppressor gene. We provide evidence that its tumor suppressive activity is driven by the protein it encodes, and that circCCDC7(15,16,17,18,19) encodes a secretory protein. Consistently, conditioned media from circCCDC7(15,16,17,18,19) overexpressing cells has the same tumor suppressive activity. We further demonstrate that the tumor suppressive activity of circCCDC7(15,16,17,18,19) is at least partially mediated by FLRT3, whose expression also negatively correlates with Gleason score and clinical prognosis. In conclusion, circCCDC7(15,16,17,18,19) functions as a tumor suppressor in prostate cancer cells through the circCCDC7-180aa secretory protein it encodes, and is a promising therapeutic peptide for prostate cancer.
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Affiliation(s)
- Qiong Wang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Bisheng Cheng
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Sandeep Singh
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Yiran Tao
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Zhongqiu Xie
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Fujun Qin
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Xinrui Shi
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Jingjing Xu
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chenxi Hu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wanlong Tan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Hui Li
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
| | - Hai Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.
- Department of Urology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China.
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19
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Xu Y, Xu T, Huang Y, Wan J, Jiang Z. Silencing hsa_circ_0032449 inhibits the pancreatic differentiation of human embryonic stem cells via the hsa_miR-195-5p/CCND1/PI3K/AKT signaling pathway. Exp Cell Res 2024; 434:113879. [PMID: 38072304 DOI: 10.1016/j.yexcr.2023.113879] [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: 09/25/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023]
Abstract
Stem cell-derived β cells (SC-β cells) differentiated from stem cell-derived pancreatic progenitor (PP) cells are promising tools for enabling normal glucose control of islet transplants and have therapeutic potential for type 1 diabetes treatment. Pancreatic specification is essential for SC-β cell induction in vitro and low-quality PP cells may convert into derivatives of non-pancreatic lineages both in vivo and in vitro, impeding PP-derived β cell safety and differentiation efficiency. Circular RNA (circRNA) commonly determines the fate of stem cells by acting as competing endogenous RNA (ceRNA). Currently, the relationships between endogenous circRNA and pancreatic specification remain elusive. Herein, we used whole transcriptome sequencing analysis and functional experiments to reveal that deficiency of hsa_circ_0032449 resulted in posterior foregut-derived PP cells with a weakened the progenitor state with decreased expression of PDX1, NKX6.1 and CCND1. As differentiation processed into maturation, silencing of hsa_circ_0032449 suppressed PP cell development into functionally mature and glucose-responsive SC-β cells. These SC-β cells exhibited lower serum C-peptide levels compared with those of control groups in nude mice and had difficulties in reversing hyperglycemia in STZ-induced diabetic nude mice. Mechanistically, loss of hsa_circ_0032449 participated in PI3K-AKT signaling transduction by acting as a ceRNA to sponge miR-195-5p and by influencing the expression of the downstream target CCND1 at transcription and translation levels. Overall, our findings identified hsa_circ_0032449 as an essential PP cell-fate specification regulator, indicating a promising potential in clinical applications and basic research.
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Affiliation(s)
- Yang Xu
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Tianxin Xu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Yan Huang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Jian Wan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China.
| | - Zhaoyan Jiang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China.
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20
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Wang C, Liu Y, Cui D, Jiang Y, Li L. The critical roles of lnc-GLYATL2-2/PD-L1 axis in immune microenvironment and the clinical value of intracranial chordomas. Am J Cancer Res 2023; 13:6313-6332. [PMID: 38187065 PMCID: PMC10767344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/15/2023] [Indexed: 01/09/2024] Open
Abstract
Intracranial chordomas (ICs) are associated with a poor prognosis due to low total resection rates and high recurrence rates. However, the role of immunotherapy in ICs remains unknown. RNA sequencing and immunohistochemical staining were performed on IC tissues and normal tissues, and the long noncoding RNA (lncRNA) lnc-GLYATL2-2 was identified. The results indicated that high expression of lnc-GLYATL2-2 was positively correlated with the tumor-infiltrating lymphocyte (TIL) markers CD4 and Foxp3, negatively correlated with CD8, and positively correlated with the expression of the immune checkpoint molecules programmed death receptor-1 (PD-1) and programmed death ligand 1 (PD-L1). Additionally, Kaplan-Meier and univariate or multivariate Cox regression analyses revealed the predictive value of lnc-GLYATL2-2 for survival based on clinical data from patients with ICs. A high expression level of lnc-GLYATL2-2 is potentially correlated with a suppressive tumor immune microenvironment and adverse clinical outcomes in IC patients. Mechanistically, the upregulation of lnc-GLYATL2-2 can result in increased cytoplasmic levels of ELAVL1, leading to enhanced binding to the 3'-UTR of PD-L1 mRNA and maintenance of its stability. In contrast, lnc-GLYATL2-2 can directly interact with the PD-L1 protein to prevent degradation, thereby promoting high levels of PD-L1 expression simultaneously at the transcriptional and translational levels in chordoma cells. These results provide a new perspective on the diagnosis and prognosis of ICs and provide theoretical evidence for immunotherapy in patients with ICs.
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Affiliation(s)
- Chengbin Wang
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Yingliang Liu
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Daming Cui
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Yang Jiang
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Li Li
- Hospital for Chronic Neurological Diseases, Xi’an International Meidical Center Hospital Affiliated to Northwest UniversityXi’an 710000, Shaanxi, China
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21
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Yang J, Tan C, Wang Y, Zong T, Xie T, Yang Q, Wu M, Liu Y, Mu T, Wang X, Yao Y. The circRNA MKLN1 regulates autophagy in the development of diabetic retinopathy. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166839. [PMID: 37549719 DOI: 10.1016/j.bbadis.2023.166839] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/09/2023]
Abstract
Diabetic retinopathy (DR) is a common complication in patients with diabetes and has become an important cause of blindness in working-age people. However, the mechanisms involved have not been fully elucidated. Circular RNAs (circRNAs) can play an important role in DR, and they can accurately regulate the expression of target genes through a new regulatory model: the competing endogenous RNA (ceRNA) model. We isolated total RNA from extracellular vesicles in the serum of healthy individuals (Con) and individuals with diabetes mellitus without DR (DM), nonproliferative DR (NPDR), or proliferative DR (PDR) and subjected them to deep sequencing. We found aberrantly high expression of circMKLN1. In a streptozotocin (STZ)-induced mice model of diabetes, the inhibition of circMKLN1 with AAV2 transduction markedly ameliorated retinal acellular vessels and vascular leakage, which was reversed by intravitreal injection of rapamycin, a potent autophagy inducer. In addition, circMKLN1 adsorbs miR-26a-5p as a molecular sponge and mediates high glucose (HG)/methylglyoxal (MG)-induced autophagy in hRMECs. CircMKLN1-silencing treatment reduces HG/MG-related reactive autophagy and inflammation. In addition, miR-26a-5p targeting by circMKLN1 plays an important role in the regulation of Rab11a expression. Thus, either new biomarkers or new therapeutic targets may be identified with the translation of these findings.
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Affiliation(s)
- Jiahui Yang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Chengye Tan
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Yan Wang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Tianyi Zong
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Tianhua Xie
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Qian Yang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China; Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Meili Wu
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Yanqiu Liu
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Tong Mu
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China
| | - Xiaolu Wang
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China.
| | - Yong Yao
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, 299 Qingyang Road, Wuxi, Jiangsu 214023, People's Republic of China.
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22
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Kong Z, Lu Y, Yang Y, Chang K, Lin Y, Huang Y, Wang C, Zhang L, Xu W, Zhao S, Li Y. m6A-Mediated Biogenesis of circDDIT4 Inhibits Prostate Cancer Progression by Sequestrating ELAVL1/HuR. Mol Cancer Res 2023; 21:1342-1355. [PMID: 37647111 PMCID: PMC10690048 DOI: 10.1158/1541-7786.mcr-22-0271] [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: 04/06/2022] [Revised: 08/11/2022] [Accepted: 08/28/2023] [Indexed: 09/01/2023]
Abstract
The pathologic significance of the circular RNA DDIT4 (circDDIT4), which is formed by backsplicing at the 3'-untranslated region (UTR) with a 5' splice acceptor site in exon 2 of linear DDIT4 mRNA, has yet to be determined. Our study found that circDDIT4 is downregulated in prostate cancer and functions as a tumor suppressor during prostate cancer progression. By competitively binding to ELAV-like RNA binding protein 1 (ELAVL1/HuR) through its 3'-UTR, circDDIT4 acts as a protein sponge to decrease the expression of prostate cancer-overexpressed anoctamin 7 (ANO7). This promotes prostate cancer cell apoptosis while inhibiting cell proliferation and metastasis. Furthermore, we discovered that N6-methyladenosine (m6A) modification facilitates the biogenesis of circDDIT4. The methyltransferase complex consisting of WTAP/METTL3/METTL14 increases the level of circDDIT4, while the RNA demethylase FTO decreases it. IMPLICATIONS These findings suggest that abnormal cotranscriptional modification of m6A promotes prostate cancer initiation and progression via a circular RNA-protein-cell signaling network.
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Affiliation(s)
- Zhe Kong
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, P.R. China
| | - Yali Lu
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, P.R. China
| | - Yue Yang
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, P.R. China
| | - Kun Chang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, P.R. China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, P.R. China
| | - Yan Lin
- Institutes of Biomedical Sciences, Fudan University, Shanghai, P.R. China
| | - Yan Huang
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, P.R. China
| | - Chenji Wang
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, P.R. China
| | - Lu Zhang
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, P.R. China
| | - Wei Xu
- Institutes of Biomedical Sciences, Fudan University, Shanghai, P.R. China
| | - Shimin Zhao
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, P.R. China
- Institute of Metabolism and Integrative Biology (IMIB), Key Laboratory of Reproduction Regulation of NPFPC, Fudan University, Shanghai, P.R. China
| | - Yao Li
- Obstetrics and Gynecology Hospital of Fudan University, State Key Lab of Genetic Engineering, MOE Engineering Research Center of Gene Technology, School of Life Sciences, Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, P.R. China
- Shanghai Engineering Research Center of Industrial Microorganisms, School of Life Science, Fudan University, Shanghai, P.R. China
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23
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Chen H, Zhang LF, Zhang L, Miao Y, Xi Y, Liu MF, Zhang M, Li B. CircANKRD17 promotes glycolysis by inhibiting miR-143 in breast cancer cells. J Cell Physiol 2023; 238:2765-2777. [PMID: 37812578 DOI: 10.1002/jcp.31128] [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: 03/31/2023] [Revised: 08/30/2023] [Accepted: 09/12/2023] [Indexed: 10/11/2023]
Abstract
Glucose metabolic reprogramming, known as the Warburg effect, is one of the metabolic hallmarks of tumor cells. Cancer cells preferentially metabolize glucose by glycolysis rather than mitochondrial oxidative phosphorylation regardless of oxygen availability, but the regulatory mechanism underlying this switch has been incompletely understood. Here, we report that the circular RNA circ ankyrin repeat domain 17 (ANKRD17) functions as a key regulator for glycolysis to promote cell growth, migration, invasion, and cell-cycle progression in breast cancer (BC) cells. We further show that circANKRD17 acts to accelerate glycolysis in BC cells by acting as a sponge for miR-143 and in turn overrides the repressive effect of miR-143, a well-documented glycolytic repressor, on hexokinase 2 in BC cells, thus resulting in enhanced glycolysis in BC cells. These data suggest the circANKRD17-miR-143 cascade as a novel mechanism in controlling glucose metabolic reprogramming in BC cells and suggest circANKRD17 as a promising therapeutic target to interrupt cancerous glycolysis.
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Affiliation(s)
- Hong Chen
- Department of Nuclear Medicine, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, China
| | - Ling-Fei Zhang
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
- State Key Laboratory of Molecular Biology, State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Lu Zhang
- Department of Nuclear Medicine, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, China
| | - Ying Miao
- Department of Nuclear Medicine, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, China
| | - Yun Xi
- Department of Nuclear Medicine, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, China
| | - Mo-Fang Liu
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
- State Key Laboratory of Molecular Biology, State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China
| | - Min Zhang
- Department of Nuclear Medicine, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, China
| | - Biao Li
- Department of Nuclear Medicine, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, China
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Lan J, Chen X, Xu F, Tao F, Liu L, Cheng R, Li N, Pan Y. Self-assembled miR-134-5p inhibitor nanoparticles ameliorate experimental bronchopulmonary dysplasia (BPD) via suppressing ferroptosis. Mikrochim Acta 2023; 190:491. [PMID: 38030848 PMCID: PMC10687138 DOI: 10.1007/s00604-023-06069-3] [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: 07/21/2023] [Accepted: 10/22/2023] [Indexed: 12/01/2023]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic lung disease in premature infants with increased levels of reactive oxygen species (ROS) and ferroptosis. Herein, we designed a peptide-based nanoparticle to deliver therapeutic molecules to pulmonary, thereby ameliorating BPD. The BPD-induced damages of lung tissues were detected by H&E and immunohistochemistry staining. Inflammatory cytokines, Fe2+, and ROS levels were quantified by the indicated kits, respectively. The targeting relationship was verified by luciferase reporter assay and pull-down assay. Subsequently, self-assembled miR-134-5p inhibitor nanoparticles with pulmonary epithelial cell-targeting were synthesized. The characteristics were detected by transmission electron microscopy, luminescence imaging, and dynamic light scattering. A significant ferroptosis was observed in the BPD mice. The protein level of GPX4 was decreased significantly compared to the control group. Constantly, miR-134-5p showed positive regulation on ferroptosis by targeting GPX4. The designed nanoparticles were mainly accumulated in the lung region. Besides, it ameliorated experimental bronchopulmonary dysplasia via suppressing ferroptosis, in vivo and in vitro. Our findings provided a miR-134-5p/GPX4 axis in regulating ferroptosis of BPD and prompted the potential of applying the peptide-based nanoparticle to BPD treatment.
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Affiliation(s)
- Jiang Lan
- Shenzhen Longhua Maternity and Child Health Care Hospital, Shenzhen, 518000, China
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Xu Chen
- Children's Hospital Affiliated to Nanjing Medical University (Nanjing Children's Hospital), Nanjing, 210008, China
| | - Fengdan Xu
- Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan, 523325, China
| | - Fangfei Tao
- Children's Hospital Affiliated to Nanjing Medical University (Nanjing Children's Hospital), Nanjing, 210008, China
| | - Liyuan Liu
- Shenzhen Longhua Maternity and Child Health Care Hospital, Shenzhen, 518000, China
| | - Rui Cheng
- Children's Hospital Affiliated to Nanjing Medical University (Nanjing Children's Hospital), Nanjing, 210008, China.
| | - Ning Li
- Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan, 523325, China.
| | - Ya Pan
- Shenzhen Longhua Maternity and Child Health Care Hospital, Shenzhen, 518000, China.
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25
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Li H, Jiao W, Song J, Wang J, Chen G, Li D, Wang X, Bao B, Du X, Cheng Y, Yang C, Tong Q, Zheng L. circ-hnRNPU inhibits NONO-mediated c-Myc transactivation and mRNA stabilization essential for glycosylation and cancer progression. J Exp Clin Cancer Res 2023; 42:313. [PMID: 37993881 PMCID: PMC10666356 DOI: 10.1186/s13046-023-02898-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 11/12/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND Recent evidence reveals the emerging functions of circular RNA (circRNA) and protein glycosylation in cancer progression. However, the roles of circRNA in regulating glycosyltransferase expression in gastric cancer remain to be determined. METHODS Circular RNAs (circRNAs) were validated by Sanger sequencing. Co-immunoprecipitation, mass spectrometry, and RNA sequencing assays were applied to explore protein interaction and target genes. Gene expression regulation was observed by chromatin immunoprecipitation, RNA immunoprecipitation, dual-luciferase reporter, real-time quantitative RT-PCR, and western blot assays. Gain- and loss-of-function studies were performed to observe the impacts of circRNA and its partners on the glycosylation, growth, invasion, and metastasis of gastric cancer cells. RESULTS Circ-hnRNPU, an exonic circRNA derived from heterogenous nuclear ribonuclear protein U (hnRNPU), was identified to exert tumor suppressive roles in protein glycosylation and progression of gastric cancer. Mechanistically, circ-hnRNPU physically interacted with non-POU domain containing octamer binding (NONO) protein to induce its cytoplasmic retention, resulting in down-regulation of glycosyltransferases (GALNT2, GALNT6, MGAT1) and parental gene hnRNPU via repression of nuclear NONO-mediated c-Myc transactivation or cytoplasmic NONO-facilitated mRNA stability. Rescue studies indicated that circ-hnRNPU inhibited the N- and O-glycosylation, growth, invasion, and metastasis of gastric cancer cells via interacting with NONO protein. Pre-clinically, administration of lentivirus carrying circ-hnRNPU suppressed the protein glycosylation, tumorigenesis, and aggressiveness of gastric cancer xenografts. In clinical cases, low circ-hnRNPU levels and high NONO or c-Myc expression were associated with poor survival outcome of gastric cancer patients. CONCLUSIONS These findings indicate that circ-hnRNPU inhibits NONO-mediated c-Myc transactivation and mRNA stabilization essential for glycosylation and cancer progression.
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Affiliation(s)
- Hongjun Li
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Wanju Jiao
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Jiyu Song
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Jianqun Wang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Guo Chen
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Dan Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Xiaojing Wang
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Banghe Bao
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Xinyi Du
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Yang Cheng
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Chunhui Yang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China
| | - Qiangsong Tong
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China.
| | - Liduan Zheng
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China.
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Wang R, Zhong J, Pan X, Su Z, Xu Y, Zhang M, Chen X, Chen N, Yu T, Zhou Q. A novel intronic circular RNA circFGFR1 int2 up-regulates FGFR1 by recruiting transcriptional activators P65/FUS and suppressing miR-4687-5p to promote prostate cancer progression. J Transl Med 2023; 21:840. [PMID: 37993879 PMCID: PMC10664560 DOI: 10.1186/s12967-023-04718-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/10/2023] [Indexed: 11/24/2023] Open
Abstract
Fibroblast growth factor receptor 1 (FGFR1) is a core component of the FGFs/FGFR pathway that activates multiple signalling pathways, including ERK1/2, PI3K/AKT, PLCγ, and NF-κB. Aberrant expression of FGFR1 due to gene amplification, chromosome rearrangement, point mutation, and epigenetic deregulations, have been reported in various cancers. FGFR1 overexpression has also been reported in prostate cancer (PCa), but the underlining mechanisms are not clear. Here we report a novel circular RNA, circFGFR1int2, derived from intron 2 of FGFR1 gene, which is overexpressed in PCa and associated with tumor progression. Importantly, we show that circFGFR1int2 facilitates FGFR1 transcription by recruiting transcription activators P65/FUS and by interacting with FGFR1 promoter. Moreover, we show that circFGFR1int2 suppresses post-transcriptional inhibitory effects of miR-4687-5p on FGFR1 mRNA. These mechanisms synergistically promote PCa cell growth, migration, and invasion. Overexpression of circFGFR1int2 is significantly correlated with higher tumor grade, Gleason score, and PSA level, and is a significant unfavorable prognosticator for CRPC-free survival (CFS) (RR = 3.277, 95% confidence interval: 1.192-9.009; P = 0.021). These findings unravelled novel mechanisms controlling FGFR1 gene expression by intronic circRNA and its potential clinicopathological utility as a diagnostic or therapeutic target.
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Affiliation(s)
- Ruyue Wang
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jinjing Zhong
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiuyi Pan
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhengzheng Su
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yunyi Xu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Mengni Zhang
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xueqin Chen
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ni Chen
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ting Yu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Qiao Zhou
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Guo W, Liu H, Zhong M, Qi Q, Li Y. circ_0006528 promotes nonsmall cell lung cancer progression by sponging miR-892a and regulating NRAS expression. Anticancer Drugs 2023:00001813-990000000-00224. [PMID: 37982201 DOI: 10.1097/cad.0000000000001439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Micro-RNAs play essential roles in developing and progressing nonsmall cell lung cancer (NSCLC) and drug resistance. Nevertheless, the functions and mechanisms are partly explored. Therefore, the present study analyzes the effect of circ_0006528 and the mechanism of regulation of NSCLC cell progression by sponging miR-892a to regulate neuroblastoma rat sarcoma viral oncogene (NRAS) expression. Initially, circ_0006528 is identified using divergent primers-based PCR and RNase R exonuclease treatments. After administration of the designed circ_0006528-specific siRNA, the RT-qPCR analysis is used to determine the interference efficiency of siRNA. At the same time, cell growth, invasion, and migration are assessed by 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT), Transwell, and scratch assays in the NSCLC cell lines (secretory pathway Ca2+-ATPase isoform 1 [SPCA-1] and A549) in vitro, respectively. Further, miR-892a inhibitor is added to the cells for functional recovery assay. Finally, the xenograft mouse model is constructed to explore the effect of circ_0006528 on tumor growth in vivo. The RT-qPCR analysis in 66 pairs of NSCLC cancer and noncancerous tissues revealed that circ_0006528 is highly expressed in NSCLC patient tissues. The RNase R experiments revealed that HSA_circ_0006528 is unaffected by RNase R exonuclease. MTT assay showed that knockdown of hsa_circ_0006528 by siRNA significantly decreased cell proliferation and viability in A549 and SPCA-1 cells. The luciferase reporter assay showed direct binding of hsa_circ_0006528 to miR-892a, and miR-892a targets binding NRAS. In addition, the miR-892a inhibitor terminated the hsa_circ_0006528 siRNA, triggering inhibition of proliferation, invasion, and migration of NSCLC cells. In summary, the study revealed that the knockout of hsa_circ_0006528 downregulation of NRAS expression by sponging miR-892a inhibited NSCLC cell growth and invasion.
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Affiliation(s)
- Weixi Guo
- Department of Thoracic Surgery, The First Affiliated Hospital of Xiamen University and
| | - Hongming Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Xiamen University and
| | - Ming Zhong
- Department of Thoracic Surgery, The First Affiliated Hospital of Xiamen University and
| | - Qinghua Qi
- Department of Thoracic Surgery, The First Affiliated Hospital of Xiamen University and
| | - Yibin Li
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University, Xiamen, China
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Li J, Cao H, Yang J, Wang B. CircCDK1 blocking IGF2BP2-mediated m6A modification of CPPED1 promotes laryngeal squamous cell carcinoma metastasis via the PI3K/AKT signal pathway. Gene 2023; 884:147686. [PMID: 37543219 DOI: 10.1016/j.gene.2023.147686] [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: 05/12/2023] [Revised: 07/05/2023] [Accepted: 08/01/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND Circular RNA (circRNA) is a novel noncoding RNA (ncRNA) that plays a critical role in various cancers. However, the clinical significance, biological function, and molecular mechanisms of circRNAs in laryngeal squamous cell carcinoma (LSCC) remain unclear. METHODS A circRNA array was performed to identify the differentially expressed circRNAs. In vitro and in vivo assays were proceeded to verify the biological function of circCDK1 in LSCC. RNA pulldown assays and RNA immunoprecipitation (RIP) were used to confirm the binding between circCDK1 and insulin-like growth factor 2 mRNA binding protein 2(IGF2BP2). The MeRIP assay was then used to identified the N6-methyladenisine (m6A) methylation of calcineurin like phosphatase domain containing1 (CPPED1). RESULTS Hsa_circ_0005774 (circCDK1) was found upregulated in LSCC tissues compared to adjacent normal tissues. The level of circCDK1 was positively correlated with poor prognosisof LSCC patients. In vitro and in vivo, circCDK1 promoted migration and invasion of LSCC cells. Mechanistically, eukaryotic translation initiation factor4A3(EIF4A3) induced biogenesis of circCDK1 by binding to its flanking. By competitively binding to IGF2BP2, circCDK1 blocked the m6A modification of CPPED1 in IGF2BP2-dependent manner. Moreover, the circCDK1-mediated decrease of CPPED1 activated the PI3K/AKT signal pathway to facilitate progression of LSCC. CONCLUSIONS Our findings demonstrated that EIF4A3-induced upregulation of circCDK1 promoted LSCC metastasis via EIF4A3-circCDK1-IGF2BP2-CPPED1 to activate PI3K-AKT signal pathway. CircCDK1 might serve as a new diagnostic and prognostic marker or potential therapeutic target for LSCC.
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Affiliation(s)
- Jinling Li
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Huan Cao
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jianwang Yang
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Baoshan Wang
- Department of Otorhinolaryngology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
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29
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Ayyildiz D, Bergonzoni G, Monziani A, Tripathi T, Döring J, Kerschbamer E, Di Leva F, Pennati E, Donini L, Kovalenko M, Zasso J, Conti L, Wheeler VC, Dieterich C, Piazza S, Dassi E, Biagioli M. CAG repeat expansion in the Huntington's disease gene shapes linear and circular RNAs biogenesis. PLoS Genet 2023; 19:e1010988. [PMID: 37831730 PMCID: PMC10617732 DOI: 10.1371/journal.pgen.1010988] [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: 03/06/2022] [Revised: 10/31/2023] [Accepted: 09/19/2023] [Indexed: 10/15/2023] Open
Abstract
Alternative splicing (AS) appears to be altered in Huntington's disease (HD), but its significance for early, pre-symptomatic disease stages has not been inspected. Here, taking advantage of Htt CAG knock-in mouse in vitro and in vivo models, we demonstrate a correlation between Htt CAG repeat length and increased aberrant linear AS, specifically affecting neural progenitors and, in vivo, the striatum prior to overt behavioral phenotypes stages. Remarkably, a significant proportion (36%) of the aberrantly spliced isoforms are not-functional and meant to non-sense mediated decay (NMD). The expanded Htt CAG repeats further reflect on a previously neglected, global impairment of back-splicing, leading to decreased circular RNAs production in neural progenitors. Integrative transcriptomic analyses unveil a network of transcriptionally altered micro-RNAs and RNA-binding proteins (Celf, hnRNPs, Ptbp, Srsf, Upf1, Ythd2) which might influence the AS machinery, primarily in neural cells. We suggest that this unbalanced expression of linear and circular RNAs might alter neural fitness, contributing to HD pathogenesis.
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Affiliation(s)
- Dilara Ayyildiz
- Bioinformatic facility, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
- Biomedical Sciences and Biotechnology, University of Udine, Udine, Italy
| | - Guendalina Bergonzoni
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Alan Monziani
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Takshashila Tripathi
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Jessica Döring
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Emanuela Kerschbamer
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Francesca Di Leva
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Elia Pennati
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Luisa Donini
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Marina Kovalenko
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Jacopo Zasso
- Laboratory of Stem Cell Biology, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Luciano Conti
- Laboratory of Stem Cell Biology, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Vanessa C. Wheeler
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Department of Neurology Harvard Medical School, Boston, Massachusetts, United States of America
| | - Christoph Dieterich
- Section of Bioinformatics and Systems Cardiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Silvano Piazza
- Bioinformatic facility, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Erik Dassi
- Laboratory of RNA Regulatory Networks, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
| | - Marta Biagioli
- NeuroEpigenetics laboratory, Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Trento, Italy
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30
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Wang L, Wang C, Sun Z, Du A, Shan F, Sun Z. Knockdown of Mmu-circ-0001380 Attenuates Myocardial Ischemia/Reperfusion Injury via Modulating miR-106b-5p/Phlpp2 Axis. J Cardiovasc Transl Res 2023; 16:1064-1077. [PMID: 37474690 DOI: 10.1007/s12265-023-10383-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/22/2023] [Indexed: 07/22/2023]
Abstract
Myocardial ischemia/reperfusion (MI/R) injury induces myocardial damage and dysfunction. Increasing evidence has confirmed that circular RNAs (circRNAs) play crucial roles in regulating MI/R. Mmu-circ-0001380 has identified to be highly expressed in myocardium of MI/R mouse model. However, its biological function and molecular mechanism in MI/R injury are still unclear. Here, we demonstrated that knockdown of cric-0001380 attenuated myocardial injury of MI/R mice. In vitro, silence of circ-0001380 significantly enhanced viability, and inhibited apoptosis and oxidative stress in HL-1 cells under oxygen-glucose deprivation/reoxygenation (OGD/R). Mmu-miR-106b-5p interacted with circ-0001380, and suppressed the expression of pleckstrin homology domain and leucine rich repeat protein phosphatase 2 (Phlpp2). The miR-106b-5p/Phlpp2 axis mediated the effect of circ-0001380 on OGD/R-induced apoptosis through regulating the phosphorylation of p38, and further involved in regulating the viability and oxidative stress of HL-1 cells. In conclusion, circ-0001380 downregulation relieves MI/R injury via regulating the miR-106b-5p/Phlpp2 axis. The present study indicates that mmu-circ-0001380 exacerbates the myocardial ischemia/reperfusion injury through modulating the miR-106b-5p/Phlpp2 axis in vitro and in vivo.
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Affiliation(s)
- Li Wang
- Department of Cardiology, Dalian Municipal Central Hospital, No. 826, Xinan Road, Dalian, Liaoning, China.
| | - Chuanhe Wang
- Department of Cardiology, Shengjing Hospital of China Medical University, No. 39, Huaxiang Road, Shenyang, Liaoning, China
| | - Zhaoqing Sun
- Department of Cardiology, Shengjing Hospital of China Medical University, No. 39, Huaxiang Road, Shenyang, Liaoning, China
| | - Aolin Du
- Department of Cardiology, Shengjing Hospital of China Medical University, No. 39, Huaxiang Road, Shenyang, Liaoning, China
| | - Fei Shan
- Department of Cardiology, Shengjing Hospital of China Medical University, No. 39, Huaxiang Road, Shenyang, Liaoning, China
| | - Zhijun Sun
- Department of Cardiology, Shengjing Hospital of China Medical University, No. 39, Huaxiang Road, Shenyang, Liaoning, China.
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31
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Huang Z, Luo Y, Chen C, Zhou C, Su Z, Cai C, Li X, Wu W. miR-325-3p Reduces Proliferation and Promotes Apoptosis of Gastric Cancer Cells by Inhibiting Human Antigen R. Can J Gastroenterol Hepatol 2023; 2023:6882851. [PMID: 37766807 PMCID: PMC10522435 DOI: 10.1155/2023/6882851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 07/03/2023] [Accepted: 07/24/2023] [Indexed: 09/29/2023] Open
Abstract
Human antigen R (HuR), also known as ELAVL1, is a widely expressed RNA-binding protein (RBP) that has a significant impact on the development and advancement of tumors. Our previous study found that 5-fluorouracil (5-FU) may impede the proliferation and increase apoptosis in gastric cancer cells by reducing the nucleocytoplasmic shuttling of HuR. However, how posttranscriptional regulation influences HuR functions in gastric cancer remains to be elucidated. Here, we demonstrated that miR-325-3p has the potential to regulate the expression level of HuR by directly binding to its 3'UTR, which in turn led to a significant reduction in proliferation and an increase in apoptosis in gastric cancer cells. In addition, xenograft experiment showed that knockdown of HuR or overexpression of miR-325-3p group exhibited smaller tumor sizes after transplant of gastric cancer cells into zebrafish larvae. Thus, our findings offer new insights into the pathogenesis of gastric cancer and may potentially assist in identifying novel targets for drug therapy.
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Affiliation(s)
- Zhengwei Huang
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- The Affiliated Kangning Hospital of Wenzhou Medical University, Zhejiang Provincial Clinical Research Center for Mental Disorder, Wenzhou, China
| | - Yacan Luo
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Congcong Chen
- The Affiliated Kangning Hospital of Wenzhou Medical University, Zhejiang Provincial Clinical Research Center for Mental Disorder, Wenzhou, China
| | - Chaoyang Zhou
- Intensive Care Unit, The People's Hospital of Yuhuan, Yuhuan, China
| | - Zhengkang Su
- The Affiliated Kangning Hospital of Wenzhou Medical University, Zhejiang Provincial Clinical Research Center for Mental Disorder, Wenzhou, China
| | - Chang Cai
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xi Li
- The Affiliated Kangning Hospital of Wenzhou Medical University, Zhejiang Provincial Clinical Research Center for Mental Disorder, Wenzhou, China
| | - Wenzhi Wu
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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Anoushirvani AA, Jafarian Yazdi A, Amirabadi S, Asouri SA, Shafabakhsh R, Sheida A, Hosseini Khabr MS, Jafari A, Tamehri Zadeh SS, Hamblin MR, Kalantari L, Talaei Zavareh SA, Mirzaei H. Role of non-coding RNAs in neuroblastoma. Cancer Gene Ther 2023; 30:1190-1208. [PMID: 37217790 DOI: 10.1038/s41417-023-00623-0] [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: 11/02/2022] [Revised: 03/25/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023]
Abstract
Neuroblastoma is known as the most prevalent extracranial malignancy in childhood with a neural crest origin. It has been widely accepted that non-coding RNAs (ncRNAs) play important roles in many types of cancer, including glioma and gastrointestinal cancers. They may regulate the cancer gene network. According to recent sequencing and profiling studies, ncRNAs genes are deregulated in human cancers via deletion, amplification, abnormal epigenetic, or transcriptional regulation. Disturbances in the expression of ncRNAs may act either as oncogenes or as anti-tumor suppressor genes, and can lead to the induction of cancer hallmarks. ncRNAs can be secreted from tumor cells inside exosomes, where they can be transferred to other cells to affect their function. However, these topics still need more study to clarify their exact roles, so the present review addresses different roles and functions of ncRNAs in neuroblastoma.
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Affiliation(s)
- Ali Arash Anoushirvani
- Department of Internal Medicine, Firoozgar Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Sanaz Amirabadi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Sahar Ahmadi Asouri
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University, Kashan, Iran
| | - Rana Shafabakhsh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University, Kashan, Iran
| | - Amirhossein Sheida
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Maryam Sadat Hosseini Khabr
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Ameneh Jafari
- ATMP Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, P.O. BOX: 15179/64311, Tehran, Iran
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
| | - Leila Kalantari
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
| | | | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University, Kashan, Iran.
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Pisignano G, Michael DC, Visal TH, Pirlog R, Ladomery M, Calin GA. Going circular: history, present, and future of circRNAs in cancer. Oncogene 2023; 42:2783-2800. [PMID: 37587333 PMCID: PMC10504067 DOI: 10.1038/s41388-023-02780-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 08/18/2023]
Abstract
To date, thousands of highly abundant and conserved single-stranded RNA molecules shaped into ring structures (circRNAs) have been identified. CircRNAs are multifunctional molecules that have been shown to regulate gene expression transcriptionally and post-transcriptionally and exhibit distinct tissue- and development-specific expression patterns associated with a variety of normal and disease conditions, including cancer pathogenesis. Over the past years, due to their intrinsic stability and resistance to ribonucleases, particular attention has been drawn to their use as reliable diagnostic and prognostic biomarkers in cancer diagnosis, treatment, and prevention. However, there are some critical caveats to their utility in the clinic. Their circular shape limits their annotation and a complete functional elucidation is lacking. This makes their detection and biomedical application still challenging. Herein, we review the current knowledge of circRNA biogenesis and function, and of their involvement in tumorigenesis and potential utility in cancer-targeted therapy.
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Affiliation(s)
- Giuseppina Pisignano
- Department of Life Sciences, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | - David C Michael
- Department of Life Sciences, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Tanvi H Visal
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Radu Pirlog
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael Ladomery
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbour Lane, Frenchay, Bristol, BS16 1QY, UK
| | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Hong Z, Chen X, Wang L, Zhou X, He H, Zou G, Liu Q, Wang Y. ROCK2-RNA interaction map reveals multiple biological mechanisms underlying tumor progression in renal cell carcinoma. Hum Cell 2023; 36:1790-1803. [PMID: 37418232 DOI: 10.1007/s13577-023-00947-x] [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: 03/12/2023] [Accepted: 06/24/2023] [Indexed: 07/08/2023]
Abstract
Renal cell carcinoma (RCC) is the most common form of kidney cancer in adults. Despite new therapeutic modalities, the outcomes for RCC patients remain unsatisfactory. Rho-associated coiled-coil forming protein kinase 2 (ROCK2) has previously been shown to be upregulated in RCC, and its expression was negatively correlated with patient survival. However, the precise molecular function of ROCK2 has remained unclear. Herein, using RNA-seq analysis of ROCK2 knockdown and control cells, we identified 464 differentially expressed genes, and 1287 alternative splicing events in 786-O RCC cells. Furthermore, mapping of iRIP-seq reads in 786-O cells showed a biased distribution at 5' UTR, intronic and intergenic regions. By comparing ROCK2-regulated alternative splicing and iRIP-seq data, we found 292 overlapping genes that are enriched in multiple tumorigenic pathways. Taken together, our work defined a complex ROCK2-RNA interaction map on a genomic scale in a human RCC cell line, which deepens our understanding of the molecular function of ROCK2 in cancer development.
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Affiliation(s)
- Zhengdong Hong
- Department of Urology Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xuexin Chen
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou, 511436, China
| | - Lei Wang
- School of Pharmacy, Nanchang Medical College, Nanchang, China
- Jiangxi Health Vocational College, Nanchang, China
| | - Xiaocheng Zhou
- Department of Urology Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Haowei He
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou, 511436, China
| | - Gaode Zou
- Department of Urology Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qingnan Liu
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Yiqian Wang
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou, 511436, China.
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Li J, Dong X, Kong X, Wang Y, Li Y, Tong Y, Zhao W, Duan W, Li P, Wang Y, Wang C. Circular RNA hsa_circ_0067842 facilitates tumor metastasis and immune escape in breast cancer through HuR/CMTM6/PD-L1 axis. Biol Direct 2023; 18:48. [PMID: 37592296 PMCID: PMC10436663 DOI: 10.1186/s13062-023-00397-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 07/19/2023] [Indexed: 08/19/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) have been shown to play diverse biological functions in the progression of multiple diseases. However, the impacts of circRNAs on breast cancer (BC) progression remains unclear. Therefore, the objective of this paper is to investigate the role and mechanisms of a functional circRNA in BC metastasis and immune escape. METHODS This study used a circRNA microarray and identified a novel circRNA hsa_circ_0067842. The validation and characteristics of hsa_circ_0067842 were investigated using qRT-PCR, sanger sequencing, RNase R treatment, actinomycin D treatment and fluorescence in situ hybridization (FISH). Gain- and loss-of-function assays were performed to evaluate the biological function of hsa_circ_0067842 in BC progression and immune escape. Mechanistically, the interaction between hsa_circ_0067842 and HuR was explored by RNA pull down, mass spectrometry (MS), subcellular component protein extraction and immunofluorescence (IF). The regulatory mechanisms of hsa_circ_0067842/HuR/CMTM6/PD-L1 axis were investigated by qRT-PCR, western blot, FISH, immunoprecipitation and rescue assays. RESULTS The expression of hsa_circ_0067842 was upregulated in BC tissues and cells, which was found to be significantly associated with poor prognosis, regardless of other clinical covariates. Function assays showed that hsa_circ_0067842 promoted the migration and invasion capacities of BC cells. Moreover, co-culture experiment with peripheral blood mononuclear cells (PBMCs) showed that hsa_circ_0067842 played a role in the immune escape of BC cells. Mechanistically, our study showed that hsa_circ_0067842 interacted with HuR, affecting its nuclear translocation, thus enhancing the stability of CMTM6. CMTM6 not only enhances the migration and invasion ability of BC cells, but also affects the ubiquitination of PD-L1 and inhibits its degradation. CONCLUSION Collectively, our results demonstrated that hsa_circ_0067842 promoted BC progression through the HuR/CMTM6/PD-L1 axis, providing new insight and a potential target for BC prognosis and therapy.
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Affiliation(s)
- Juan Li
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Xiangjun Dong
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Xue Kong
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Yafen Wang
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Yanru Li
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Yao Tong
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Wenjing Zhao
- Pathology Tissue Bank, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Weili Duan
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Peilong Li
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China.
| | - Yanqun Wang
- Department of Clinical Laboratory, The 960th Hospital of the PLA Joint Logistics Support Force, Jinan, 250031, Shandong, China.
| | - Chuanxin Wang
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China.
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Wang Y, Wang H, Wang H, Zhou R, Wu J, Zhang Z, Jin Y, Li T, Kohnen MV, Liu X, Wei W, Chen K, Gao Y, Ding J, Zhang H, Liu B, Lin C, Gu L. Multi-omics of Circular RNAs and Their Responses to Hormones in Moso Bamboo (Phyllostachys edulis). GENOMICS, PROTEOMICS & BIOINFORMATICS 2023; 21:866-885. [PMID: 36805531 PMCID: PMC10787125 DOI: 10.1016/j.gpb.2023.01.007] [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: 12/10/2021] [Revised: 01/04/2023] [Accepted: 01/31/2023] [Indexed: 02/18/2023]
Abstract
Circular RNAs (circRNAs) are endogenous non-coding RNAs with covalently closed structures, which have important functions in plants. However, their biogenesis, degradation, and function upon treatment with gibberellins (GAs) and auxins (1-naphthaleneacetic acid, NAA) remain unknown. Here, we systematically identified and characterized the expression patterns, evolutionary conservation, genomic features, and internal structures of circRNAs using RNase R-treated libraries from moso bamboo (Phyllostachys edulis) seedlings. Moreover, we investigated the biogenesis of circRNAs dependent on both cis- and trans-regulation. We explored the function of circRNAs, including their roles in regulating microRNA (miRNA)-related genes and modulating the alternative splicing of their linear counterparts. Importantly, we developed a customized degradome sequencing approach to detect miRNA-mediated cleavage of circRNAs. Finally, we presented a comprehensive view of the participation of circRNAs in the regulation of hormone metabolism upon treatment of bamboo seedlings with GA and NAA. Collectively, our study provides insights into the biogenesis, function, and miRNA-mediated degradation of circRNAs in moso bamboo.
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Affiliation(s)
- Yongsheng Wang
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Huihui Wang
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Huiyuan Wang
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ruifan Zhou
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ji Wu
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zekun Zhang
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yandong Jin
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Tao Li
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Markus V Kohnen
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xuqing Liu
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wentao Wei
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Kai Chen
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yubang Gao
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiazhi Ding
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hangxiao Zhang
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Bo Liu
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chentao Lin
- Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - Lianfeng Gu
- Basic Forestry and Proteomics Research Center, College of Forestry, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Yang TX, Xue RF. CircSHKBP1 regulates colon cancer cell proliferation and apoptosis by targeting miR-125a-5p. Shijie Huaren Xiaohua Zazhi 2023; 31:537-543. [DOI: 10.11569/wcjd.v31.i13.537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/10/2023] [Accepted: 06/29/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Colon cancer is a common malignant tumor in clinical practice. It has been reported that circular RNAs (circRNAs) are involved in the occurrence and development of cancer. Among them, circSHKBP1 acts as an oncogene to promote cancer progression. Thus, we hypothesized that circSHKBP1 might be also implicated in the development of colon cancer.
AIM To explore the role of circSHKBP1 in colon cancer cell proliferation and apoptosis and the possible mechanism involved.
METHODS Sixty-nine cancer tissues and matched adjacent normal tissues were selected from March 2020 to July 2020 at our hospital. The expression of circSHKBP1 and miR-125a-5p was detected by qRT-PCR. Human colon cancer cells (HT29) cultured in vitro were randomly divided into sh-NC group, sh-circSHKBP1 group, miR-NC group, miR-125a-5p group, sh-circSHKBP1 + anti-miR-NC group, and sh-circSHKBP1 + anti-miR-125a-5p group. MTT assay, colony formation experiment, and flow cytometry were used to detect cell proliferation, colony formation, and apoptosis, respectively. The dual luciferase reporter experiment was used to detect the impact of miR-125a-5p overexpression on the luciferase activity of the wild-type vector wt-circSHKBP1. Western blot was used to detect the protein expression of Bax and Bcl-2.
RESULTS Compared with adjacent tissues, the expression of circSHKBP1 in colon cancer tissues was increased (P < 0.05), while the expression of miR-125a-5p was decreased (P < 0.05). Cell proliferation inhibition rate, apoptosis rate, and Bax protein level in the sh-circSHKBP1 group were increased (P < 0.05), while the number of cell colonies (P < 0.05) and Bcl-2 protein level were decreased (P < 0.05). Overexpression of miR-125a-5p could reduce the luciferase activity of wt-circSHKBP1 (P < 0.05). Relative to the miR-NC group, miR-125a-5p reduced cell proliferation, increased apoptosis rate and Bax protein level (P < 0.05), decreased the number of cell colonies (P < 0.05), and reduced Bcl-2 protein level (P < 0.05). Compared with the sh-circSHKBP1 + anti-miR-NC group, cell proliferation inhibition rate, apoptosis, and the protein level of Bax in the sh-circSHKBP1 + anti-miR-125a-5p group were decreased (P < 0.05), while the number of cell colonies and Bcl-2 protein level were increased (P < 0.05).
CONCLUSION Knockdown of circSHKBP1 could inhibit colon cancer cell proliferation and promote apoptosis via up-regulating miR-125a-5p expression.
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Affiliation(s)
- Ting-Xu Yang
- Department of General Medicine, Jiuquan People's Hospital, Jiuquan 735000, Gansu Province, China
| | - Rui-Fang Xue
- Department of General Medicine, Jiuquan People's Hospital, Jiuquan 735000, Gansu Province, China
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Chen D, Shi L, Zhong D, Nie Y, Yang Y, Liu D. Hsa_circ_0002019 promotes cell proliferation, migration, and invasion by regulating TNFAIP6/NF-κB signaling in gastric cancer. Genomics 2023; 115:110641. [PMID: 37201873 DOI: 10.1016/j.ygeno.2023.110641] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/25/2023] [Accepted: 05/14/2023] [Indexed: 05/20/2023]
Abstract
BACKGROUND Gastric cancer (GC) is a common cancer with a high incidence and mortality rate. Herein, the role of hsa_circ_0002019 (circ_0002019) in GC was investigated. METHODS The molecular structure and stability of circ_0002019 were identified by RNase R, and Actinomycin D treatment. Molecular associations were verified by RIP. Proliferation, migration, and invasion were detected by CCK-8, EdU, and Transwell, respectively. The effect of circ_0002019 on tumor growth was analyzed in vivo. RESULTS Circ_0002019 was elevated in GC tissues and cells. Circ_0002019 knockdown inhibited the proliferation, migration, and invasion. Mechanically, circ_0002019 activated NF-κB signaling by increasing TNFAIP6 mRNA stability by PTBP1. Activation of NF-κB signaling limited the antitumor effect of circ_0002019 silencing in GC. Circ_0002019 knockdown inhibited tumor growth in vivo by reducing TNFAIP6 expression. CONCLUSIONS Circ_0002019 accelerated the proliferation, migration, and invasion by regulating TNFAIP6/NF-κB pathway, suggesting circ_0002019 could be a key regulatory factor in GC progression.
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Affiliation(s)
- Dan Chen
- Department of Gastroenterology, Jinhua People's Hospital, Jinhua 321000, Zhejiang Province, China
| | - Li Shi
- Department of Gastroenterology, Jinhua People's Hospital, Jinhua 321000, Zhejiang Province, China
| | - Dingfu Zhong
- Department of Gastroenterology, Jinhua People's Hospital, Jinhua 321000, Zhejiang Province, China
| | - Ying Nie
- Department of Gastroenterology, Jinhua People's Hospital, Jinhua 321000, Zhejiang Province, China
| | - Yi Yang
- Department of Gastroenterology, Jinhua People's Hospital, Jinhua 321000, Zhejiang Province, China
| | - Dong Liu
- Department of Hepatobiliary and Pancreatic Gastroenterology, Jinhua People's Hospital, Jinhua 321000, Zhejiang Province, China.
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Zhang Y, Luo J, Yang W, Ye WC. CircRNAs in colorectal cancer: potential biomarkers and therapeutic targets. Cell Death Dis 2023; 14:353. [PMID: 37296107 PMCID: PMC10250185 DOI: 10.1038/s41419-023-05881-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/09/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
Globally, colorectal cancer (CRC) is the third most prevalent cancer and the second leading cause of cancer-related deaths. Circular RNAs (circRNAs) are single-stranded RNA with covalently closed-loop structures and are highly stable, conserved, and abundantly expressed in various organs and tissues. Recent research found abnormal circRNA expression in CRC patients' blood/serum, cells, CRC tissues, and exosomes. Furthermore, mounting data demonstrated that circRNAs are crucial to the development of CRC. CircRNAs have been shown to exert biological functions by acting as microRNA sponges, RNA-binding protein sponges, regulators of gene splicing and transcription, and protein/peptide translators. These characteristics make circRNAs potential markers for CRC diagnosis and prognosis, potential therapeutic targets, and circRNA-based therapies. However, further studies are still necessary to improve the understanding of the roles and biological mechanisms of circRNAs in the development of CRC. In this review, up-to-date research on the role of circRNAs in CRC was examined, focusing on their potential application in CRC diagnosis and targeted therapy, which would advance the knowledge of the functions of circRNAs in the development and progression of CRC.
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Affiliation(s)
- Yuying Zhang
- Central Laboratory, Shenzhen Longhua Maternity and Child Healthcare Hospital, Shenzhen, 518109, China
| | - Jingyan Luo
- Forevergen Biosciences Centre, Guangzhou International Biotech Island, Guangzhou, 510300, China
| | - Weikang Yang
- Department of Prevention and Healthcare, Shenzhen Longhua Maternity and Child Healthcare Hospital, Shenzhen, 518109, China
| | - Wen-Chu Ye
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.
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Zhao S, Ly A, Mudd JL, Rozycki EB, Webster J, Coonrod E, Othoum G, Luo J, Dang H, Fields RC, Maher C. Characterization of cell-type specific circular RNAs associated with colorectal cancer metastasis. NAR Cancer 2023; 5:zcad021. [PMID: 37213253 PMCID: PMC10198730 DOI: 10.1093/narcan/zcad021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/02/2023] [Accepted: 05/16/2023] [Indexed: 05/23/2023] Open
Abstract
Colorectal cancer (CRC) is the most common gastrointestinal malignancy and a leading cause of cancer deaths in the United States. More than half of CRC patients develop metastatic disease (mCRC) with an average 5-year survival rate of 13%. Circular RNAs (circRNAs) have recently emerged as important tumorigenesis regulators; however, their role in mCRC progression remains poorly characterized. Further, little is known about their cell-type specificity to elucidate their functions in the tumor microenvironment (TME). To address this, we performed total RNA sequencing (RNA-seq) on 30 matched normal, primary and metastatic samples from 14 mCRC patients. Additionally, five CRC cell lines were sequenced to construct a circRNA catalog in CRC. We detected 47 869 circRNAs, with 51% previously unannotated in CRC and 14% novel candidates when compared to existing circRNA databases. We identified 362 circRNAs differentially expressed in primary and/or metastatic tissues, termed circular RNAs associated with metastasis (CRAMS). We performed cell-type deconvolution using published single-cell RNA-seq datasets and applied a non-negative least squares statistical model to estimate cell-type specific circRNA expression. This predicted 667 circRNAs as exclusively expressed in a single cell type. Collectively, this serves as a valuable resource, TMECircDB (accessible at https://www.maherlab.com/tmecircdb-overview), for functional characterization of circRNAs in mCRC, specifically in the TME.
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Affiliation(s)
- Sidi Zhao
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Amy Ly
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Jacqueline L Mudd
- Department of Surgery, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Emily B Rozycki
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Jace Webster
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Emily Coonrod
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Ghofran Othoum
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Jingqin Luo
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St Louis, MO 63108, USA
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Ha X Dang
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Ryan C Fields
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St Louis, MO 63108, USA
- Department of Surgery, Washington University School of Medicine, St Louis, MO 63108, USA
| | - Christopher A Maher
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO 63108, USA
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St Louis, MO 63108, USA
- Department of Biomedical Engineering, Washington University School of Medicine, St Louis, MO 63108, USA
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Wei J, Li M, Xue C, Chen S, Zheng L, Deng H, Tang F, Li G, Xiong W, Zeng Z, Zhou M. Understanding the roles and regulation patterns of circRNA on its host gene in tumorigenesis and tumor progression. J Exp Clin Cancer Res 2023; 42:86. [PMID: 37060016 PMCID: PMC10105446 DOI: 10.1186/s13046-023-02657-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/29/2023] [Indexed: 04/16/2023] Open
Abstract
Circular RNAs (circRNAs) are a novel type of endogenous non-coding RNAs, which are covalently closed loop structures formed by precursor mRNAs (pre-mRNAs) through back-splicing. CircRNAs are abnormally expressed in many tumors, and play critical roles in a variety of tumors as oncogenes or tumor suppressor genes by sponging miRNAs, regulating alternative splicing and transcription, cis-regulating host genes, interacting with RNA binding proteins (RBPs) or encoding polypeptides. Among them, the regulation of circRNAs on their corresponding host genes is a critical way for circRNAs to exit their functions. Accumulating evidence suggests that circRNAs are able to regulate the expression of host genes at the transcriptional level, post-transcriptional level, translational level, post-translational level, or by encoding polypeptides. Therefore, this paper mainly summarized the roles and association of circRNAs and their corresponding host genes in tumorigenesis and tumor progression, generalized the circRNAs that function synergistically or antagonistically with their host genes, and elaborated the mechanisms of mutual regulation between circRNAs and their host genes. More importantly, this review provides specific references for revealing the potential application of circRNAs combined with their host genes in tumor diagnosis, treatment and prognosis.
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Affiliation(s)
- Jianxia Wei
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China
| | - Mengna Li
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China
| | - Changning Xue
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China
| | - Shipeng Chen
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China
| | - Lemei Zheng
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China
| | - Hongyu Deng
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
| | - Faqing Tang
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
| | - Guiyuan Li
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
- Cancer Research Institute, Central South University, Changsha, 410078, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China
| | - Ming Zhou
- NHC Key Laboratory of Carcinogenesis, Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China.
- Cancer Research Institute, Central South University, Changsha, 410078, China.
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Central South University, Changsha, 410078, China.
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Wu K, Tan J, Yang C. Recent advances and application value of circRNA in neuroblastoma. Front Oncol 2023; 13:1180300. [PMID: 37091173 PMCID: PMC10116045 DOI: 10.3389/fonc.2023.1180300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 03/27/2023] [Indexed: 04/09/2023] Open
Abstract
Neuroblastoma (NB) is children’s most prevalent solid malignant tumor, accounting for 15% of childhood cancer mortality. Non-coding RNA is important in NB pathogenesis. As a newly identified non-coding RNA, abnormal regulation (abnormal up-regulation or down-regulation) of the circRNAs expression is implicated in the tumorigenesis of various tumors, including NB. CircRNAs primarily regulate the expression of microRNA (miRNA) target genes by microRNA (miRNA) sponge adsorption. Clinical evidence suggests that the expression of certain circRNAs is associated with the prognosis and clinical features of NB and hence may be exploited as a biomarker or therapeutic target. This review examines circRNAs that have been demonstrated to play a function in NB.
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Affiliation(s)
- Ke Wu
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, China
| | - Juan Tan
- Child Healthcare Department, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Chao Yang
- Child Healthcare Department, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Department of Pediatric Surgical Oncology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Children’s Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Chao Yang,
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Wu W, Chen X, Liu X, Bao HJ, Li QH, Xian JY, Lu BF, Zhao Y, Chen S. SNORD60 promotes the tumorigenesis and progression of endometrial cancer through binding PIK3CA and regulating PI3K/AKT/mTOR signaling pathway. Mol Carcinog 2023; 62:413-426. [PMID: 36562475 DOI: 10.1002/mc.23495] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 11/17/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022]
Abstract
Endometrial carcinoma is a common gynecological malignant tumor, small nucleolar RNAs (snoRNAs) are involved in cancer development. However, researches on the roles of snoRNAs in endometrial carcinoma are limited. The expression levels of snoRNAs in endometrial cancer tissues were analyzed using The Cancer Genome Atlas (TCGA) database. Antisense oligonucleotides (ASOs) and plasmids were used for transfection. Moreover, CCK-8, EdU, wound-healing assay, transwell, cell apoptosis, western blotting, and xenograft model were employed to examine the biological functions of related molecules. real-time reverse transcription polymerase chain reaction and western blotting were performed to detect messenger RNA (mRNA) and protein levels. Including bioinformatics, fluorescence in situ hybridization, RNA pulldown, actinomycin D and RTL-P assays were also carried out to explore the molecular mechanism. Analysis of data from TCGA showed that the expression level of small nucleolar RNA, C/D box 60 (SNORD60) in endometrial cancer tissues is observably higher than that in normal endometrial tissues. Further research suggested that SNORD60 played a carcinogenic role both in vitro and in vivo, and significantly upregulated the expression of PIK3CA. However, the carcinogenic effects can be reversed by knocking down fibrillarin (FBL) or PIK3CA. SNORD60 forms complexes by binding with 2'-O-methyltransferase fibrillarin, thus catalyzes the 2'-O-methylation (Nm) modification of PIK3CA mRNA and modulates the PI3K/AKT/mTOR signaling pathway, so as to promote the development of endometrial cancer. In short, SNORD60 might become a new biomarker for the therapy of endometrial cancer in the future and provide new strategies for diagnosis and treatment.
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Affiliation(s)
- Wu Wu
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xi Chen
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xin Liu
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hai-Juan Bao
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qian-Hui Li
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jing-Yuan Xian
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Bing-Feng Lu
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yang Zhao
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shuo Chen
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Zhang N, Lei T, Xu T, Zou X, Wang Z. Long noncoding RNA SNHG15: A promising target in human cancers. Front Oncol 2023; 13:1108564. [PMID: 37056344 PMCID: PMC10086267 DOI: 10.3389/fonc.2023.1108564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 03/10/2023] [Indexed: 03/30/2023] Open
Abstract
As oncogenes or tumor suppressor genes, lncRNAs played an important role in tumorigenesis and the progression of human cancers. The lncRNA SNHG15 has recently been revealed to be dysregulated in malignant tumors, suggesting the aberrant expression of which contributes to clinical features and regulates various oncogenic processes. We have selected extensive literature focused on SNHG15 from electronic databases, including studies relevant to its clinical significance and the critical events in cancer-related processes such as cell proliferation, apoptosis, autophagy, metastasis, and drug resistance. This review summarized the current understanding of SNHG15 in cancer, mainly focusing on the pathological features, known biological functions, and underlying molecular mechanisms. Furthermore, SNHG15 has been well-documented to be an effective diagnostic and prognostic marker for tumors, offering novel therapeutic interventions in specific subsets of cancer cells.
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Affiliation(s)
- Niu Zhang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tianyao Lei
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tianwei Xu
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaoteng Zou
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhaoxia Wang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- *Correspondence: Zhaoxia Wang,
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Xie F, Shen J, Han Z, Luo W, Liao L, He J. circSPECC1 Promotes Proliferation and Migration of LNCaP Prostate Cancer Cells by Affecting Their Epithelial-Mesenchymal Transition. J Immunol Res 2023; 2023:6956038. [PMID: 37020791 PMCID: PMC10070022 DOI: 10.1155/2023/6956038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/01/2022] [Accepted: 08/06/2022] [Indexed: 03/29/2023] Open
Abstract
Objective. To determine the effects of circSPECC1 (hsa_circ_0000745) on the proliferation and migration of LNCaP prostate cancer cells and to explore the potential molecular mechanism. Methods. Stable circSPECC1 shRNA-expressing and circSPECC1-overexpressing LNCaP cell lines were constructed, and relative gene expression levels were determined by RT-PCR. MTT and clonogenic assays were used to assess proliferative ability while a scratch test was used to analyze cell migration. Western blotting was used to determine protein expression levels. The effects of circSPECC1 on the proliferation of LNCaP prostate cancer cells were observed in vivo. Results. circSPECC1 was found to be derived from the SPECC1 (sperm antigen with calponin homology and coiled-coil domains 1) parent gene and to form a loop. Overexpression of circSPECC1 promoted the proliferation and migration of the LNCaP cells, whereas decreased expression of circSPECC1 inhibited these properties. Overexpression of circSPECC1 promoted the expression of MMP-2, MMP-9, VEGF, vimentin, and N-cad but downregulated the expression of E-cad. Decreased expression of circSPECC1 inhibited the expression of MMP-2, MMP-9, VEGF, vimentin, and N-cad but increased the expression of E-cad. Conclusion. circSPECC1 promotes cell proliferation and migration by affecting the epithelial-mesenchymal transition of LNCaP prostate cancer cells.
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Tong Y, Zhang S, Riddle S, Song R, Yue D. Circular RNAs in the Origin of Developmental Lung Disease: Promising Diagnostic and Therapeutic Biomarkers. Biomolecules 2023; 13:biom13030533. [PMID: 36979468 PMCID: PMC10046088 DOI: 10.3390/biom13030533] [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: 02/09/2023] [Revised: 03/11/2023] [Accepted: 03/12/2023] [Indexed: 03/17/2023] Open
Abstract
Circular RNA (circRNA) is a newly discovered noncoding RNA that regulates gene transcription, binds to RNA-related proteins, and encodes protein microRNAs (miRNAs). The development of molecular biomarkers such as circRNAs holds great promise in the diagnosis and prognosis of clinical disorders. Importantly, circRNA-mediated maternal-fetus risk factors including environmental (high altitude), maternal (preeclampsia, smoking, and chorioamnionitis), placental, and fetal (preterm birth and low birth weight) factors are the early origins and likely to contribute to the occurrence and progression of developmental and pediatric cardiopulmonary disorders. Although studies of circRNAs in normal cardiopulmonary development and developmental diseases have just begun, some studies have revealed their expression patterns. Here, we provide an overview of circRNAs’ biogenesis and biological functions. Furthermore, this review aims to emphasize the importance of circRNAs in maternal-fetus risk factors. Likewise, the potential biomarker and therapeutic target of circRNAs in developmental and pediatric lung diseases are explored.
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Affiliation(s)
- Yajie Tong
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Shuqing Zhang
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Suzette Riddle
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Rui Song
- Lawrence D. Longo MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
- Correspondence: (R.S.); (D.Y.); Tel.: +01-909-558-4325 (R.S.); +86-24-9661551125 (D.Y.)
| | - Dongmei Yue
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Correspondence: (R.S.); (D.Y.); Tel.: +01-909-558-4325 (R.S.); +86-24-9661551125 (D.Y.)
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Zhu X, Luo X, Long X, Jiang S, Xie X, Zhang Q, Wang H. CircAGO2 promotes colorectal cancer progression by inhibiting heat shock protein family B (small) member 8 via miR-1-3p/retinoblastoma binding protein 4 axis. Funct Integr Genomics 2023; 23:78. [PMID: 36881338 DOI: 10.1007/s10142-023-00990-9] [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: 11/16/2022] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 03/08/2023]
Abstract
This paper was to uncover the mechanism of circular RNA Argonaute 2 (circAGO2) in colorectal cancer (CRC) progression. The expression of circAGO2 was detected in CRC cells and tissues, and the relationship between clinicopathological features of CRC and circAGO2 level was evaluated. The growth and invasion of CRC cells and subcutaneous xenograft of nude mice were measured to evaluate the effect of circAGO2 on CRC development. Bioinformatics databases were applied to analyze levels of retinoblastoma binding protein 4 (RBBP4) and heat shock protein family B 8 (HSPB8) in cancer tissues. The relevance of circAGO2 and RBBP4 expression and the relationship between RBBP4 and HSPB8 during histone acetylation were assessed. The targeting relationship between miR-1-3p and circAGO2 or RBBP4 was predicted and confirmed. The effects of miR-1-3p and RBBP4 on biological functions of CRC cells were also verified. CircAGO2 was upregulated in CRC. CircAGO2 promoted the growth and invasion of CRC cells. CircAGO2 competitively bound to miR-1-3p and regulated RBBP4 expression, thus inhibiting HSPB8 transcription by promoting histone deacetylation. Silencing circAGO2 enhanced miR-1-3p expression and reduced RBBP4 expression, while suppression of miR-1-3p downgraded levels of miR-1-3p, up-regulated RBBP4, and facilitated cell proliferation and invasion in the presence of silencing circAGO2. RBBP4 silencing decreased RBBP4 expression and reduced proliferation and invasion of cells where circAGO2 and miR-1-3p were silenced. CircAGO2 overexpression decoyed miR-1-3p to increase RBBP4 expression, which inhibited HSPB8 transcription via histone deacetylation in HSPB8 promoter region, promoting proliferation and invasion of CRC cells.
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Affiliation(s)
- Xijia Zhu
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Guilin Medical University, No. 212 Renmin Road, Lingui District, Guilin, Guangxi, 541100, People's Republic of China
| | - Xishun Luo
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Guilin Medical University, No. 212 Renmin Road, Lingui District, Guilin, Guangxi, 541100, People's Republic of China
| | - Xiangkai Long
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Guilin Medical University, No. 212 Renmin Road, Lingui District, Guilin, Guangxi, 541100, People's Republic of China
| | - Shiyu Jiang
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Guilin Medical University, No. 212 Renmin Road, Lingui District, Guilin, Guangxi, 541100, People's Republic of China
| | - Xinyang Xie
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Guilin Medical University, No. 212 Renmin Road, Lingui District, Guilin, Guangxi, 541100, People's Republic of China
| | - Qiqi Zhang
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Guilin Medical University, No. 212 Renmin Road, Lingui District, Guilin, Guangxi, 541100, People's Republic of China
| | - Haipeng Wang
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Guilin Medical University, No. 212 Renmin Road, Lingui District, Guilin, Guangxi, 541100, People's Republic of China.
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Peña-Paladines JJ, Wong CH, Chen Y. Circularized RNA as novel therapeutics in cancer. Int J Biochem Cell Biol 2023; 156:106364. [PMID: 36639095 DOI: 10.1016/j.biocel.2023.106364] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/22/2022] [Accepted: 01/07/2023] [Indexed: 01/12/2023]
Abstract
Circular RNAs (CircRNAs) regulate gene expression by functioning as microRNA sponges, regulating protein stability, and gilding proteins for gene transcription and translation. Also, limited circRNAs harbour protein-coding ability through cap-independent pathways. These molecular mechanisms of circRNAs contribute to their importance in several cellular processes. Particularly, the dysregulation of circRNAs also plays a critical role in disease development. Targeting disease-causing circRNAs by restoring their normal expression by gain-of-function or loss-of-function approach and regulating their molecular activities could be potential direction for the development of anti-cancer therapies. Furthermore, due to unique covalently closed circular structure, the superior stability of circRNAs also grants them as novel therapeutic tools replacing the therapeutic small interfering RNAs and messenger RNAs. Here, we will review the functional and molecular mechanisms of circRNAs in pathogenesis, the current methods for targeting the dysregulated circRNAs, and the potential of using synthetic circRNAs in disease treatment and prevention.
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Affiliation(s)
| | - Chi Hin Wong
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518087, China
| | - Yangchao Chen
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518087, China.
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Circular RNAs-New Kids on the Block in Cancer Pathophysiology and Management. Cells 2023; 12:cells12040552. [PMID: 36831219 PMCID: PMC9953808 DOI: 10.3390/cells12040552] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/30/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023] Open
Abstract
The ever-increasing number of cancer cases and persistently high mortality underlines the urgent need to acquire new perspectives for developing innovative therapeutic approaches. As the research on protein-coding genes brought significant yet only incremental progress in the development of anticancer therapy, much attention is now devoted to understanding the role of non-coding RNAs (ncRNAs) in various types of cancer. Recent years have brought about the awareness that ncRNAs recognized previously as "dark matter" are, in fact, key players in shaping cancer development. Moreover, breakthrough discoveries concerning the role of a new group of ncRNAs, circular RNAs, have evidenced their high importance in many diseases, including malignancies. Therefore, in the following review, we focus on the role of circular RNAs in cancer, particularly in cancer stem-like cells, summarize their mechanisms of action, and provide an overview of the state-of-the-art toolkits to study them.
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50
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Chen Y, Lin L, Hu X, Li Q, Wu M. Silencing of circular RNA circPDE5A suppresses neuroblastoma progression by targeting the miR-362-5p/NOL4L axis. Int J Neurosci 2023; 133:141-151. [PMID: 33635749 DOI: 10.1080/00207454.2021.1896505] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVE Neuroblastoma (NB) is the most common extra-cranial solid tumour in early childhood. Circular RNAs (circRNAs) have been implicated in the development of NB. The purpose of the current study was to explore the molecular action of circRNA phosphodiesterase 5 A (circPDE5A) in NB malignant progression. MATERIALS AND METHODS The expression levels of circPDE5A, miR-362-5p and nucleolar protein 4 like (NOL4L) were assessed by quantitative real-time polymerase chain reaction (qRT-PCR) and western blot. Cell proliferation was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTS) assay. Cell migration and invasion were evaluated by transwell assay. The levels of glucose consumption and lactate production were measured using the commercial assay kits. Targeted correlations among circPDE5A, miR-362-5p and NOL4L were confirmed by dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. In vivo assays were performed to examine the role of circPDE5A in tumour growth in vivo. RESULTS Our results revealed that circPDE5A was up-regulated in NB tissues and cells. The silencing of circPDE5A suppressed NB cell proliferation, migration, invasion, and glycolysis in vitro and diminished tumour growth in vivo. Moreover, circPDE5A directly targeted miR-362-5p by binding to miR-362-5p. CircPDE5A silencing impeded NB malignant progression in vitro through up-regulating miR-362-5p. Furthermore, NOL4L was a direct target of miR-362-5p, and NOL4L mediated the regulation of miR-362-5p on NB malignant progression in vitro. Additionally, circPDE5A functioned as a regulator of NOL4L expression via targeting miR-362-5p. CONCLUSIONS Our current findings identified that the knockdown of circPDE5A suppressed NB malignant progression at least in part by the regulation of the miR-362-5p/NOL4L axis, providing a novel rationale for developing circPDE5A as a potential target for NB management.
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Affiliation(s)
- Yongcun Chen
- Department of Paediatrics, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Liangfeng Lin
- Department of Paediatrics, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Xiaohao Hu
- Department of Paediatrics, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Qiaoyu Li
- Department of Paediatrics, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Min Wu
- Department of Paediatrics, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
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