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Ma T, Zhang Q, Zhang S, Yue D, Wang F, Ren Y, Zhang H, Wang Y, Wu Y, Liu LE, Yu F. Research progress of human key DNA and RNA methylation-related enzymes assay. Talanta 2024; 273:125872. [PMID: 38471421 DOI: 10.1016/j.talanta.2024.125872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/18/2024] [Accepted: 03/03/2024] [Indexed: 03/14/2024]
Abstract
Gene methylation-related enzymes (GMREs) are disfunction and aberrantly expressed in a variety of cancers, such as lung, gastric, and pancreatic cancers and have important implications for human health. Therefore,it is critical for early diagnosis and therapy of tumor to develop strategies that allow rapid and sensitive quantitative and qualitative detection of GMREs. With the development of modern analytical techniques and the application of various biosensors, there are numerous methods have been developed for analysis of GMREs. Therefore, this paper provides a systematic review of the strategies for level and activity assay of various GMREs including methyltransferases and demethylase. The detection methods mainly involve immunohistochemistry, colorimetry, fluorescence, chemiluminescence, electrochemistry, etc. Then, this review also addresses the coordinated role of various detection probes, novel nanomaterials, and signal amplification methods. The aim is to highlight potential challenges in the present field, to expand the analytical application of GMREs detection strategies, and to meet the urgent need for future disease diagnosis and intervention.
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Affiliation(s)
- Tiantian Ma
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Qiongwen Zhang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Shuying Zhang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Dan Yue
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Fanting Wang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yujie Ren
- School of Information Management, Zhengzhou University, Zhengzhou 450001, China
| | - Hengmiao Zhang
- School of Information Management, Zhengzhou University, Zhengzhou 450001, China
| | - Yinuo Wang
- Zhengzhou Foreign Language School, Zhengzhou 450001, China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Li-E Liu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Fei Yu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China.
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2
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Song J, Hao J, Lu Y, Ding X, Li M, Xin Y. Increased m 6A modification of BDNF mRNA via FTO promotes neuronal apoptosis following aluminum-induced oxidative stress. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 349:123848. [PMID: 38548149 DOI: 10.1016/j.envpol.2024.123848] [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: 01/29/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/07/2024]
Abstract
N6-methyladenosine (m6A) RNA modification is a new epigenetic molecular mechanism involved in various biological or pathological processes. Exposure to aluminum (Al) has been considered to promote neuronal apoptosis resulting in cognitive dysfunction, yet whether m6A modification participates in the underlying mechanism remains largely unknown. Here, rats exposed to aluminum-maltolate [Al(mal)3] for 90 days showed impaired learning and memory function and elevated apoptosis, which were related to the increased m6A level and decreased fat mass and obesity-associated protein (FTO, an m6A demethylase) in the hippocampus. Accordingly, similar results presented in PC12 cells following Al(mal)3 treatment and FTO overexpression relieved the increased apoptosis and m6A level in vitro. Next, we identified brain-derived neurotrophic factor (BDNF) as the functional downstream target of FTO in a m6A-dependent manner. Furthermore, it was found that as the onset of aluminum neurotoxicity, oxidative stress may be the upstream regulator of FTO in aluminum-induced apoptosis. Taken together, these results suggest that increased m6A modification of BDNF mRNA via FTO promotes neuronal apoptosis following aluminum-induced oxidative stress.
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Affiliation(s)
- Jing Song
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; MOE Key Laboratory of coal environmental pathogenicity and prevention, Taiyuan, China; NHC Key Laboratory of Pneumoconiosis, Taiyuan, China.
| | - Jiarui Hao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; MOE Key Laboratory of coal environmental pathogenicity and prevention, Taiyuan, China
| | - Yang Lu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; NHC Key Laboratory of Pneumoconiosis, Taiyuan, China
| | - Xiaohui Ding
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; MOE Key Laboratory of coal environmental pathogenicity and prevention, Taiyuan, China
| | - Mujia Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; NHC Key Laboratory of Pneumoconiosis, Taiyuan, China
| | - Yulu Xin
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; NHC Key Laboratory of Pneumoconiosis, Taiyuan, China
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3
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Guo J, Zhao L, Duan M, Yang Z, Zhao H, Liu B, Wang Y, Deng L, Wang C, Jiang X, Jiang X. Demethylases in tumors and the tumor microenvironment: Key modifiers of N 6-methyladenosine methylation. Biomed Pharmacother 2024; 174:116479. [PMID: 38537580 DOI: 10.1016/j.biopha.2024.116479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/09/2024] [Accepted: 03/19/2024] [Indexed: 05/01/2024] Open
Abstract
RNA methylation modifications are widespread in eukaryotes and prokaryotes, with N6-methyladenosine (m6A) the most common among them. Demethylases, including Fat mass and obesity associated gene (FTO) and AlkB homolog 5 (ALKBH5), are important in maintaining the balance between RNA methylation and demethylation. Recent studies have clearly shown that demethylases affect the biological functions of tumors by regulating their m6A levels. However, their effects are complicated, and even opposite results have appeared in different articles. Here, we summarize the complex regulatory networks of demethylases, including the most important and common pathways, to clarify the role of demethylases in tumors. In addition, we describe the relationships between demethylases and the tumor microenvironment, and introduce their regulatory mechanisms. Finally, we discuss evaluation of demethylases for tumor diagnosis and prognosis, as well as the clinical application of demethylase inhibitors, providing a strong basis for their large-scale clinical application in the future.
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Affiliation(s)
- Junchen Guo
- Departmentof Radiology, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Liang Zhao
- Department of Anorectal Surgery, Shenyang Anorectal Hospital, Shenyang, Liaoning 110002, China
| | - Meiqi Duan
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Zhi Yang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - He Zhao
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Baiming Liu
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Yihan Wang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Liping Deng
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Chen Wang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China
| | - Xiaodi Jiang
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110002, China.
| | - Xiaofeng Jiang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, China.
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4
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Qian W, Yang L, Li T, Li W, Zhou J, Xie S. RNA modifications in pulmonary diseases. MedComm (Beijing) 2024; 5:e546. [PMID: 38706740 PMCID: PMC11068158 DOI: 10.1002/mco2.546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 02/26/2024] [Accepted: 03/14/2024] [Indexed: 05/07/2024] Open
Abstract
Threatening public health, pulmonary disease (PD) encompasses diverse lung injuries like chronic obstructive PD, pulmonary fibrosis, asthma, pulmonary infections due to pathogen invasion, and fatal lung cancer. The crucial involvement of RNA epigenetic modifications in PD pathogenesis is underscored by robust evidence. These modifications not only shape cell fates but also finely modulate the expression of genes linked to disease progression, suggesting their utility as biomarkers and targets for therapeutic strategies. The critical RNA modifications implicated in PDs are summarized in this review, including N6-methylation of adenosine, N1-methylation of adenosine, 5-methylcytosine, pseudouridine (5-ribosyl uracil), 7-methylguanosine, and adenosine to inosine editing, along with relevant regulatory mechanisms. By shedding light on the pathology of PDs, these summaries could spur the identification of new biomarkers and therapeutic strategies, ultimately paving the way for early PD diagnosis and treatment innovation.
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Affiliation(s)
- Weiwei Qian
- Emergency Department of Emergency MedicineLaboratory of Emergency Medicine, West China Hospital, And Disaster Medical, Sichuan UniversityChengduSichuanChina
- Emergency DepartmentShangjinnanfu Hospital, West China Hospital, Sichuan UniversityChengduSichuanChina
| | - Lvying Yang
- The Department of Respiratory and Critical Care MedicineThe First Veterans Hospital of Sichuan ProvinceChengduSichuanChina
| | - Tianlong Li
- Department of Critical Care Medicine Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuanChina
| | - Wanlin Li
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's HospitalShenzhenGuangdongChina
| | - Jian Zhou
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National‐Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical SchoolShenzhenChina
- Department of ImmunologyInternational Cancer Center, Shenzhen University Health Science CenterShenzhenGuangdongChina
| | - Shenglong Xie
- Department of Thoracic SurgerySichuan Provincial People's Hospital, University of Electronic Science and Technology of ChinaChengduSichuanChina
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Li P, Xiong P, Li X, Zhang X, Chen X, Zhang W, Jia B, Lai Y. Tumor microenvironment characteristics and prognostic role of m 6A modification in lung squamous cell carcinoma. Heliyon 2024; 10:e26851. [PMID: 38455573 PMCID: PMC10918158 DOI: 10.1016/j.heliyon.2024.e26851] [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: 08/03/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/09/2024] Open
Abstract
Background It has recently been determined that N6-methyladenosine (m6A) RNA methylation regulators have prominent effects on several cancers. However, the potential role of m6A modification in lung squamous cell carcinoma (LUSC) remains unclear. Methods We evaluated the modification pattern of m6A and studied the biological function of m6A regulators in LUSC. Then, we constructed the m6Ascore to predict the prognosis of LUSC and analyzed the relationship between the m6Ascore and tumor mutation burden, immune cell infiltration, and immunotherapy. Result In the unsupervised consensus cluster analysis, three different m6Aclusters were identified, which correspond to an immune activation state, a moderate immune activation state, and an immune tolerance state. Forty-two genes related to the m6A phenotype were used to construct the m6Ascore; subsequently, multiple validations of the m6Ascore were carried out to determine the relationship between the score and immune cell infiltration and response to CTLA-4/PD-1 inhibitor treatment. Further analysis revealed that the m6Ascore could effectively predict the prognosis of LUSC and that the m6A phenotype-related genes, FAM162A and LOM4, might be potential biomarkers. Conclusion These findings highlight the potential role of m6A modification in the prognosis, TME, and immunotherapy of LUSC and have profound implications for developing more effective personalized treatment strategies for LUSC.
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Affiliation(s)
- Pei Li
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Peiyu Xiong
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xinyun Li
- Sichuan College of Traditional Chinese Medicine, Mianyang, 621000, China
| | - Xiaobo Zhang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xu Chen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wei Zhang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Bo Jia
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yu Lai
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
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Ma S, Chen F, Lin C, Sun W, Wang D, Zhou S, Chang S, Lu Z, Zhang D. MiR-186-5p prevents hepatocellular carcinoma progression by targeting methyltransferase-like 3 that regulates m6A-mediated stabilization of follistatin-like 5. Heliyon 2024; 10:e26767. [PMID: 38463829 PMCID: PMC10920164 DOI: 10.1016/j.heliyon.2024.e26767] [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: 06/28/2023] [Revised: 02/08/2024] [Accepted: 02/20/2024] [Indexed: 03/12/2024] Open
Abstract
Background Hepatocellular carcinoma (HCC) is a multistep process involving sophisticated genetic, epigenetic, and transcriptional changes. However, studies on microRNA (miRNA)'s regulatory effects of N6-methyladenosine (m6A) modifications on HCC progression are limited. Methods Cell Counting Kit-8 (CCK-8), clone formation, and Transwell assays were used to investigate changes in cancer cell proliferation, invasion, and migration. RNA m6A levels were verified using methylated RNA immunoprecipitation. Luciferase reporter assay was used to study the potential binding between miRNAs and mRNA. A mouse tumor transplant model was established to study the changes in tumor progression. Results Follistatin-like 5 (FSTL5) was significantly downregulated in HCC and inhibited its further progression. Additionally, methyltransferase-like 3 (METTL3) reduced FSTL5 mRNA stability in an m6A-YTH domain family 2(YTHDF2)-dependent manner. Functional experiments revealed that METTL3 downregulation inhibited HCC progression by upregulating FSTL5 in vitro and in vivo. Luciferase reporter assay verified that miR-186-5p directly targets METTL3. Additionally, miR-186-5p inhibits the proliferation, migration, and invasion of HCC cells by downregulating METTL3 expression. Conclusions The miR-186-5p/METTL3/YTHDF2/FSTL5 axis may offer new directions for targeted HCC therapy.
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Affiliation(s)
- Shuoshuo Ma
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
- Liver Transplantation Center and Hepatobiliary and Pancreatic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Fangfang Chen
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
| | - Chuanle Lin
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
| | - Wanliang Sun
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
| | - Dongdong Wang
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
| | - Shuo Zhou
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
| | - ShiRu Chang
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
| | - Zheng Lu
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
| | - Dengyong Zhang
- Department of General Surgery, The First Affiliated Hospital of BengBu Medical College, BengBu, 233000, China
- The University of Texas MD Anderson Cancer Center, Department of Translational Molecular Pathology, Houston, USA
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7
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Wang K, Mei Z, Zheng M, Liu X, Li D, Wang H. FTO-mediated autophagy inhibition promotes non-small cell lung cancer progression by reducing the stability of SESN2 mRNA. Heliyon 2024; 10:e27571. [PMID: 38495179 PMCID: PMC10943454 DOI: 10.1016/j.heliyon.2024.e27571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/19/2024] Open
Abstract
The role of fat mass and obesity-associated protein (FTO), an N6-methyladenosine (m6A) demethylase, in non-small cell lung cancer (NSCLC) has recently received widespread attention. However the underlying mechanisms of FTO-mediated autophagy regulation in NSCLC progression remain elusive. In this study, we found that FTO was significantly upregulated in NSCLC, and downregulation of FTO suppressed the growth, invasion and migration of NSCLC cells by inducing autophagy. FTO knockdown resulted in elevated m6A levels in NSCLC cells. Methylated RNA immunoprecipitation sequencing showed that sestrin 2 (SESN2) was involved in m6A regulation during autophagy in NSCLC cells. Interestingly, m6A modifications in exon 9 of SESN2 regulated its stability. FTO deficiency promoted the binding of insulin-like growth factor 2 mRNA-binding protein 1 to SESN2 mRNA, enhancing its stability and elevating its protein expression. FTO inhibited autophagic flux by downregulating SESN2, thereby promoting the growth, invasion and migration of NSCLC cells. Besides, the mechanism by which FTO blocked SESN2-mediated autophagy activation was associated with the AMPK-mTOR signaling pathway. Taken together, these findings uncover an essential role of the FTO-autophagy-SESN2 axis in NSCLC progression.
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Affiliation(s)
- Kai Wang
- Key Laboratory of Epigenetics and Oncology, Research Center for Preclinical Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Zhiqiang Mei
- Key Laboratory of Epigenetics and Oncology, Research Center for Preclinical Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Meiling Zheng
- Key Laboratory of Epigenetics and Oncology, Research Center for Preclinical Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Xiaoyan Liu
- Key Laboratory of Epigenetics and Oncology, Research Center for Preclinical Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Dabing Li
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China
| | - Haiyong Wang
- Department of Internal Medicine Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, China
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8
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Zhao Y, Huang J, Zhao K, Li M, Wang S. Ubiquitination and deubiquitination in the regulation of N 6-methyladenosine functional molecules. J Mol Med (Berl) 2024; 102:337-351. [PMID: 38289385 DOI: 10.1007/s00109-024-02417-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 10/17/2023] [Accepted: 01/09/2024] [Indexed: 02/21/2024]
Abstract
N6 methyladenosine (m6A) is the most prevalent RNA epigenetic modification, regulated by methyltransferases and demethyltransferases and recognized by methylation-related reading proteins to impact mRNA splicing, translocation, stability, and translation efficiency. It significantly affects a variety of activities, including stem cell maintenance and differentiation, tumor formation, immune regulation, and metabolic disorders. Ubiquitination refers to the specific modification of target proteins by ubiquitin molecule in response to a series of enzymes. E3 ligases connect ubiquitin to target proteins and usually lead to protein degradation. On the contrary, deubiquitination induced by deubiquitinating enzymes (DUBs) can separate ubiquitin and regulate the stability of protein. Recent studies have emphasized the potential importance of ubiquitination and deubiquitination in controlling the function of m6A modification. In this review, we discuss the impact of ubiquitination and deubiquitination on m6A functional molecules in diseases, such as metabolism, cellular stress, and tumor growth.
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Affiliation(s)
- Yue Zhao
- Department of Laboratory Medicine, Affiliated Hospital, Jiangsu University, Jiefang Road No 438, Zhenjiang, 212002, China
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jiaojiao Huang
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Kexin Zhao
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Min Li
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Shengjun Wang
- Department of Laboratory Medicine, Affiliated Hospital, Jiangsu University, Jiefang Road No 438, Zhenjiang, 212002, China.
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China.
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Zhang QC, Qian YM, Ren YH, Chen MM, Cao LM, Zheng SJ, Li BB, Wang M, Wu X, Xu K. Phenethyl isothiocyanate inhibits metastasis potential of non-small cell lung cancer cells through FTO mediated TLE1 m 6A modification. Acta Pharmacol Sin 2024; 45:619-632. [PMID: 37848553 PMCID: PMC10834501 DOI: 10.1038/s41401-023-01178-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 09/26/2023] [Indexed: 10/19/2023] Open
Abstract
N6-methyladenosine (m6A) modification is a prevalent RNA epigenetic modification, which plays a crucial role in tumor progression including metastasis. Isothiocyanates (ITCs) are natural compounds and inhibit the tumorigenesis of various cancers. Our previous studies show that ITCs inhibit the proliferation and metastasis of non-small cell lung cancer (NSCLC) cells, and have synergistic effects with chemotherapy drugs. In this study, we investigated the molecular mechanisms underlying the inhibitory effects of ITCs on cancer cell metastasis. We showed that phenethyl isothiocyanate (PEITC) dose-dependently inhibited the cell viability of both NSCLC cell lines H1299 and H226 with IC50 values of 17.6 and 15.2 μM, respectively. Furthermore, PEITC dose-dependently inhibited the invasion and migration of H1299 and H226 cells. We demonstrated that PEITC treatment dose-dependently increased m6A methylation levels and inhibited the expression of the m6A demethylase fat mass and obesity-associated protein (FTO) in H1299 and H226 cells. Knockdown of FTO significantly increased m6A methylation in H1299 and H226 cells, impaired their abilities of invasion and migration in vitro, and enhanced the inhibition of PEITC on tumor growth in vivo. Overexpression of FTO promoted the migration of NSCLC cells, and also mitigated the inhibitory effect of PEITC on migration of NSCLC cells. Furthermore, we found that FTO regulated the mRNA m6A modification of a transcriptional co-repressor Transducin-Like Enhancer of split-1 (TLE1) and further affected its stability and expression. TCGA database analysis revealed TLE1 was upregulated in NSCLC tissues compared to normal tissues, which might be correlated with the metastasis status. Moreover, we showed that PEITC suppressed the migration of NSCLC cells by inhibiting TLE1 expression and downstream Akt/NF-κB pathway. This study reveals a novel mechanism underlying ITC's inhibitory effect on metastasis of lung cancer cells, and provided valuable information for developing new therapeutics for lung cancer by targeting m6A methylation.
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Affiliation(s)
- Qi-Cheng Zhang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Yong-Mei Qian
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Ying-Hui Ren
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, 300192, China
| | - Meng-Meng Chen
- Department of Clinical Laboratory, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, China
| | - Li-Min Cao
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Si-Jia Zheng
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Bing-Bing Li
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Min Wang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xiang Wu
- Core Facility Center, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Ke Xu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China.
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Mao-Mao, Zhang JJ, Xu YP, Shao MM, Wang MC. Regulatory effects of natural products on N6-methyladenosine modification: A novel therapeutic strategy for cancer. Drug Discov Today 2024; 29:103875. [PMID: 38176674 DOI: 10.1016/j.drudis.2023.103875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/17/2023] [Accepted: 12/28/2023] [Indexed: 01/06/2024]
Abstract
N6-methyladenosine (m6A) is considered to be the most common and abundant epigenetics modification in messenger RNA (mRNA) and noncoding RNA. Abnormal modification of m6A is closely related to the occurrence, development, progression, and prognosis of cancer. m6A regulators have been identified as novel targets for anticancer drugs. Natural products, a rich source of traditional anticancer drugs, have been utilized for the development of m6A-targeting drugs. Here, we review the key role of m6A modification in cancer progression and explore the prospects and structural modification mechanisms of natural products as potential drugs targeting m6A modification for cancer treatment.
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Affiliation(s)
- Mao-Mao
- Affiliated Cixi Hospital, Wenzhou Medical University, Cixi, China
| | - Jin-Jing Zhang
- Affiliated Cixi Hospital, Wenzhou Medical University, Cixi, China
| | - Yue-Ping Xu
- Affiliated Cixi Hospital, Wenzhou Medical University, Cixi, China
| | - Min-Min Shao
- Affiliated Cixi Hospital, Wenzhou Medical University, Cixi, China
| | - Meng-Chuan Wang
- Affiliated Cixi Hospital, Wenzhou Medical University, Cixi, China.
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11
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Ning B, Mei Y. LAMA3 Promotes Tumorigenesis of Oral Squamous Cell Carcinoma by METTL3-Mediated N6-Methyladenosine Modification. Crit Rev Immunol 2024; 44:49-59. [PMID: 38305336 DOI: 10.1615/critrevimmunol.2023051066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Laminin subunit alpha 3 (LAMA3) is a cancer regulator. However, its effects and regulatory pathways in oral squamous cell carcinoma (OSCC) progression remain unknown. This research aimed to determine the influence of LAMA3 regulation via methyltransferase-like 3 (METTL3) on OSCC progression. Using quantitative real-time polymerase chain reaction and bioinformatics analysis, the expression levels of LAMA3 and METTL3 in OSCC tissues were examined. The functional roles of LAMA3 and METTL3 were analyzed using cell functional experiments. Using methylated RNA immunoprecipitation and mRNA stability assays, LAMA3 and METTL3 regulation was investigated. In OSCC tissues, LAMA3 was upregulated. LAMA3 inhibition hampered OSCC cell proliferation, invasion, and migration while its overexpression facilitated OSCC cell progression. METTL3 serves as a crucial upstream regulator of LAMA3 in OSCC and upregulates LAMA3 expression via an m6A-dependent mechanism. The low METTL3 expression partially restored the enhanced malignant phenotype induced by LAMA3 overexpression. Our findings indicate that METTL3 and LAMA3 act as pro-oncogenic factors in OSCC, with METTL3 promoting OSCC malignancy via m6A modification-dependent stabilization of LAMA3 transcripts, representing a novel regulatory mechanism in OSCC.
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Affiliation(s)
- Baoshan Ning
- Department of Stomatology, Wuhan Dongxihu District People's Hospital, Wuhan 430040, Hubei, China
| | - Yine Mei
- Department of Stomatology, Wuhan Dongxihu District People's Hospital, Wuhan 430040, Hubei, China
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12
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Lu D, Chen A. lncRNA POU6F2-AS1 Regulated by KIAA1429 Contributes to Colorectal Cancer Progression in an m 6A Modification Manner. Mol Biotechnol 2023:10.1007/s12033-023-00986-7. [PMID: 38103097 DOI: 10.1007/s12033-023-00986-7] [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: 09/13/2023] [Accepted: 11/10/2023] [Indexed: 12/17/2023]
Abstract
Long non-coding RNAs (lncRNAs) are participated in tumourigenesis, including colorectal cancer (CRC). However, the effects and mechanisms of lncRNA POU6F2-AS1 in CRC have not been investigated. KIAA1429 act as a member of N6-methyladenosine (m6A) modification, has been knew as an oncogenic factor in various cancer containing CRC. We focus to investigate the regulation effect of lncRNA POU6F2-AS1, and the mechanism among lncRNA POU6F2-AS1 and KIAA1429 in CRC. The lncRNA POU6F2-AS1 and KIAA1429 levels in CRC tissue samples as well as cells were clarified by qRT-PCR, and their relationship was predicted by bioinformatics, MeRIP and Pearson analysis. Cell survival, migration and invasion were analyzed via EdU, wound healing and Transwell assays after lncRNA POU6F2-AS1 was down-regulated and KIAA1429 was up-regulated. LncRNA POU6F2-AS1 and KIAA1429 were enriched in CRC tissue samples. LncRNA POU6F2-AS1 silencing suppressed CRC cell survival, migration, and invasion, and KIAA1429 overexpression facilitated CRC cell malignancy. KIAA1429 promoted lncRNA POU6F2-AS1 expression via m6A modification. Furthermore, KIAA1429 upregulation reversed the inhibitory effect of lncRNA POU6F2-AS1 interference on the malignant behavior of CRC cells. lncRNA POU6F2-AS1 was modulated by KIAA1429 in the form of m6A modification to regulate the malignant phenotype of CRC, which may provide new insights into the potential application of KIAA1429-m6A-lncRNA POU6F2-AS1-based CRC therapy.
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Affiliation(s)
- Dunfeng Lu
- Department of General Surgery (Gastrointestinal and Thoracichoracic Surgery), People's Hospital of Dongxihu District, Wuhan, 430040, Hubei, China
| | - Aihua Chen
- Emergency Department, People's Hospital of Dongxihu District, No.48, Jinbeiyi Road, Jinghe Street, Dongxihu District, Wuhan, 430040, Hubei, China.
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13
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Wen T, Li T, Xu Y, Zhang Y, Pan H, Wang Y. The role of m6A epigenetic modifications in tumor coding and non-coding RNA processing. Cell Commun Signal 2023; 21:355. [PMID: 38102645 PMCID: PMC10722709 DOI: 10.1186/s12964-023-01385-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: 08/07/2023] [Accepted: 11/04/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Epigenetic modifications of RNA significantly contribute to the regulatory processes in tumors and have, thus, received considerable attention. The m6A modification, known as N6-methyladenosine, is the predominant epigenetic alteration found in both eukaryotic mRNAs and ncRNAs. MAIN BODY m6A methylation modifications are dynamically reversible and are catalyzed, removed, and recognized by the complex of m6A methyltransferase (MTases), m6A demethylase, and m6A methyl recognition proteins (MRPs). Published evidence suggests that dysregulated m6A modification results in abnormal biological behavior of mature mRNA, leading to a variety of abnormal physiological processes, with profound implications for tumor development in particular. CONCLUSION Abnormal RNA processing due to dysregulation of m6A modification plays an important role in tumor pathogenesis and potential mechanisms of action. In this review, we comprehensively explored the mechanisms by which m6A modification regulates mRNA and ncRNA processing, focusing on their roles in tumors, and aiming to understand the important regulatory function of m6A modification, a key RNA epigenetic modification, in tumor cells, with a view to providing theoretical support for tumor diagnosis and treatment. Video Abstract.
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Affiliation(s)
- Tongxuan Wen
- Department of Neurosurgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, 110024, P.R. China
| | - Tong Li
- Department of Neurosurgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, 110024, P.R. China
| | - Yeqiu Xu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, 110024, P.R. China
| | - Yuanzhuang Zhang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, 110024, P.R. China
| | - Hai Pan
- Department of Neurosurgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, 110024, P.R. China.
| | - Yong Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, 110024, P.R. China.
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14
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Wei Y, Guo X, Li L, Xue W, Wang L, Chen C, Sun S, Yang Y, Yao W, Wang W, Zhao J, Duan X. The role of N6-methyladenosine methylation in PAHs-induced cancers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:118078-118101. [PMID: 37924411 DOI: 10.1007/s11356-023-30710-6] [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: 07/15/2023] [Accepted: 10/23/2023] [Indexed: 11/06/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), which are a wide range of environmental toxicants, may act on humans through inhalation, ingestion, and skin contact, resulting in a range of toxic reactions. Epidemiological studies showed that long-term exposure to PAHs in the occupational and living environment results in a substantial rise in the incidence rate of many cancers in the population, so the prevention and treatment of these diseases have become a major worldwide public health problem. N6-methyladenosine (m6A) modification greatly affects the metabolism of RNA and is implicated in the etiopathogenesis of many kinds of diseases. In addition, m6A-binding proteins have an important role in disease development. The abnormal expression of these can cause the malignant proliferation, migration, invasion, and metastasis of cancers. Furthermore, a growing number of studies revealed that environmental toxicants are one of the cancer risk factors and are related to m6A modifications. Exposure to environmental toxicants can alter the methylation level of m6A and the expression of the m6A-binding protein, thus promoting the occurrence and development of cancers through diverse mechanisms. m6A may serve as a biomarker for early environmental exposure. Through the study of m6A, we can find the health injury early, thus providing a new sight for preventing and curing environmental health-related diseases.
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Affiliation(s)
- Yujie Wei
- National Engineering Laboratory for Internet Medical Systems and Applications, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No. 1 Jianshe Road, Erqi District, Zhengzhou, 450052, Henan, China
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaona Guo
- Medical School, Huanghe Science and Technology University, Zhengzhou, Henan, China
| | - Lifeng Li
- National Engineering Laboratory for Internet Medical Systems and Applications, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No. 1 Jianshe Road, Erqi District, Zhengzhou, 450052, Henan, China
| | - Wenhua Xue
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Longhao Wang
- National Engineering Laboratory for Internet Medical Systems and Applications, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No. 1 Jianshe Road, Erqi District, Zhengzhou, 450052, Henan, China
| | - Chengxin Chen
- National Engineering Laboratory for Internet Medical Systems and Applications, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No. 1 Jianshe Road, Erqi District, Zhengzhou, 450052, Henan, China
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Shilong Sun
- National Engineering Laboratory for Internet Medical Systems and Applications, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No. 1 Jianshe Road, Erqi District, Zhengzhou, 450052, Henan, China
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yaqi Yang
- National Engineering Laboratory for Internet Medical Systems and Applications, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No. 1 Jianshe Road, Erqi District, Zhengzhou, 450052, Henan, China
| | - Wu Yao
- Department of Occupational and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Wei Wang
- Department of Occupational and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Jie Zhao
- National Engineering Laboratory for Internet Medical Systems and Applications, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No. 1 Jianshe Road, Erqi District, Zhengzhou, 450052, Henan, China
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaoran Duan
- National Engineering Laboratory for Internet Medical Systems and Applications, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No. 1 Jianshe Road, Erqi District, Zhengzhou, 450052, Henan, China.
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
- Medical School, Huanghe Science and Technology University, Zhengzhou, Henan, China.
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15
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Yu M, Ji W, Yang X, Tian K, Ma X, Yu S, Chen L, Zhao X. The role of m6A demethylases in lung cancer: diagnostic and therapeutic implications. Front Immunol 2023; 14:1279735. [PMID: 38094306 PMCID: PMC10716209 DOI: 10.3389/fimmu.2023.1279735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023] Open
Abstract
m6A is the most prevalent internal modification of eukaryotic mRNA, and plays a crucial role in tumorigenesis and various other biological processes. Lung cancer is a common primary malignant tumor of the lungs, which involves multiple factors in its occurrence and progression. Currently, only the demethylases FTO and ALKBH5 have been identified as associated with m6A modification. These demethylases play a crucial role in regulating the growth and invasion of lung cancer cells by removing methyl groups, thereby influencing stability and translation efficiency of mRNA. Furthermore, they participate in essential biological signaling pathways, making them potential targets for intervention in lung cancer treatment. Here we provides an overview of the involvement of m6A demethylase in lung cancer, as well as their potential application in the diagnosis, prognosis and treatment of the disease.
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Affiliation(s)
- Mengjiao Yu
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Wenqian Ji
- College of International Studies, Southwest University, Chongqing, China
| | - Xu Yang
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Kai Tian
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Xinyi Ma
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Shali Yu
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
| | - Lin Chen
- Nantong Institute of Liver Diseases, Nantong Third People’s Hospital Affiliated Nantong Hospital of Nantong University, Nantong, China
| | - Xinyuan Zhao
- Department of Occupational Medicine and Environmental Toxicology, Nantong Key Laboratory of Environmental Toxicology, School of Public Health, Nantong University, Nantong, China
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16
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Gao L, Wang A, Chen Y, Cai X, Li Y, Zhao J, Zhang Y, Zhang W, Zhu J, Zeng Y, Liu Z, Huang JA. FTO facilitates cancer metastasis by modifying the m 6A level of FAP to induce integrin/FAK signaling in non-small cell lung cancer. Cell Commun Signal 2023; 21:311. [PMID: 37919739 PMCID: PMC10623768 DOI: 10.1186/s12964-023-01343-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/27/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Emerging evidence suggests the critical roles of N6-methyladenosine (m6A) RNA modification in tumorigenesis and tumor progression. However, the role of m6A in non-small cell lung cancer (NSCLC) is still unclear. This study aimed to explore the role of the m6A demethylase fat mass and obesity-associated protein (FTO) in the tumor metastasis of NSCLC. METHODS A human m6A epitranscriptomic microarray analysis was used to identify downstream targets of FTO. Quantitative real-time PCR (qRT‒PCR) and western blotting were employed to evaluate the expression levels of FTO and FAP in NSCLC cell lines and tissues. Gain-of-function and loss-of-function assays were conducted in vivo and in vitro to assess the effects of FTO and FAP on NSCLC metastasis. M6A-RNA immunoprecipitation (MeRIP), RNA immunoprecipitation (RIP), luciferase reporter assays, and RNA stability assays were used to explore the mechanism of FTO action. Co-immunoprecipitation (co-IP) assays were used to determine the mechanism of FAP in NSCLC metastasis. RESULTS FTO was upregulated and predicted poor prognosis in patients with NSCLC. FTO promoted cell migration and invasion in NSCLC, and the FAK inhibitor defactinib (VS6063) suppressed NSCLC metastasis induced by overexpression of FTO. Mechanistically, FTO facilitated NSCLC metastasis by modifying the m6A level of FAP in a YTHDF2-dependent manner. Moreover, FTO-mediated metastasis formation depended on the interactions between FAP and integrin family members, which further activated the FAK signaling. CONCLUSION Our current findings provided valuable insights into the role of FTO-mediated m6A demethylation modification in NSCLC metastasis. FTO was identified as a contributor to NSCLC metastasis through the activation of the FAP/integrin/FAK signaling, which may be a potential therapeutic target for NSCLC. Video Abstract.
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Affiliation(s)
- Lirong Gao
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
| | - Anqi Wang
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
| | - Yuling Chen
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
| | - Xin Cai
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
| | - Yue Li
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
| | - Jian Zhao
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
| | - Yang Zhang
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
| | - Weijie Zhang
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
| | - Jianjie Zhu
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
- Suzhou Key Laboratory for Respiratory Diseases, Suzhou, 215006, China
| | - Yuanyuan Zeng
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China
- Suzhou Key Laboratory for Respiratory Diseases, Suzhou, 215006, China
| | - Zeyi Liu
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China.
- Suzhou Key Laboratory for Respiratory Diseases, Suzhou, 215006, China.
| | - Jian-An Huang
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
- Institute of Respiratory Diseases, Soochow University, Suzhou, 215006, China.
- Suzhou Key Laboratory for Respiratory Diseases, Suzhou, 215006, China.
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17
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Yao S, Chen X, Hu N, Zhang N, Qiu M, Jia Y, Zhang H, Liang J, Chen Z, Zheng L, Zhu J, Mao R, Jiang Y. Benzo[a]pyrene-induced up-regulation of circ_0003552 via ALKBH5-mediated m 6A modification promotes DNA damage in human bronchial epithelial cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122367. [PMID: 37573961 DOI: 10.1016/j.envpol.2023.122367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/03/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023]
Abstract
Benzo [a]pyrene (B [a]P) is a widespread environmental chemical pollutant that has been linked to the development of various diseases. However, the specific mechanism of action remains unclear. In this study, human bronchial epithelial 16HBE and BEAS-2B cells were exposed to B [a]P at 0-32 μM to assess the DNA-damaging effects. B [a]P exposure resulted in elevated expression of γ-H2AX, a marker of DNA damage. The m6A RNA methylation assay showed that B [a]P exposure increased the extent of m6A modification and the demethylase ALKBH5 played an integral role in this process. Moreover, the results of the comet assay and Western blot analysis showed an increase in m6A modification mediated by ALKBH5 that promoted DNA damage. Furthermore, the participation of a novel circular RNA, circ_0003552, was assessed by high-throughput sequencing under the condition of high m6A modification induced by B [a]P exposure. In subsequent functional studies, an interference/overexpression system was created to confirm that circ_0003552 participated in regulation of DNA damage. Mechanistically, circ_0003552 had an m6A binding site that could regulate its generation. This study is the first to report that B [a]P upregulated circ_0003552 through m6A modification, thereby promoting DNA damage. These findings revealed that epigenetics played a key role in environmental carcinogen-induced DNA damage, and the quantitative changes it brought might provide an early biomarker for future medical studies of genetic-related diseases and a new platform for investigations of the interaction between epigenetics and genetics.
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Affiliation(s)
- Shuwei Yao
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China; Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China
| | - Xintong Chen
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China; Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China
| | - Ningdong Hu
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Nan Zhang
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China
| | - Miaoyun Qiu
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yangyang Jia
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China
| | - Han Zhang
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China
| | - Jihuan Liang
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China
| | - Zehao Chen
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China
| | - Liting Zheng
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China
| | - Jialu Zhu
- 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 Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, China; Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China.
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18
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Zhou C, She X, Gu C, Hu Y, Ma M, Qiu Q, Sun T, Xu X, Chen H, Zheng Z. FTO fuels diabetes-induced vascular endothelial dysfunction associated with inflammation by erasing m6A methylation of TNIP1. J Clin Invest 2023; 133:e160517. [PMID: 37781923 PMCID: PMC10541204 DOI: 10.1172/jci160517] [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: 03/28/2022] [Accepted: 08/01/2023] [Indexed: 10/03/2023] Open
Abstract
Endothelial dysfunction is a critical and initiating factor of the vascular complications of diabetes. Inflammation plays an important role in endothelial dysfunction regulated by epigenetic modifications. N6-methyladenosine (m6A) is one of the most prevalent epigenetic modifications in eukaryotic cells. In this research, we identified an m6A demethylase, fat mass and obesity-associated protein (FTO), as an essential epitranscriptomic regulator in diabetes-induced vascular endothelial dysfunction. We showed that enhanced FTO reduced the global level of m6A in hyperglycemia. FTO knockdown in endothelial cells (ECs) resulted in less inflammation and compromised ability of migration and tube formation. Compared with EC Ftofl/fl diabetic mice, EC-specific Fto-deficient (EC FtoΔ/Δ) diabetic mice displayed less retinal vascular leakage and acellular capillary formation. Furthermore, methylated RNA immunoprecipitation sequencing (MeRIP-Seq) combined with RNA-Seq indicated that Tnip1 served as a downstream target of FTO. Luciferase activity assays and RNA pull-down demonstrated that FTO repressed TNIP1 mRNA expression by erasing its m6A methylation. In addition, TNIP1 depletion activated NF-κB and other inflammatory factors, which aggravated retinal vascular leakage and acellular capillary formation, while sustained expression of Tnip1 by intravitreal injection of adeno-associated virus alleviated endothelial impairments. These findings suggest that the FTO-TNIP1-NF-κB network provides potential targets to treat diabetic vascular complications.
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Affiliation(s)
- Chuandi Zhou
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Xinping She
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Chufeng Gu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Yanan Hu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Mingming Ma
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Qinghua Qiu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Tao Sun
- Shanghai Eye Diseases Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai General Hospital, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
| | - Xun Xu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Haibing Chen
- Department of Endocrinology and Metabolism, Shanghai 10th People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zhi Zheng
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
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19
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Wang Q, Zhang L, Su Z, Li W, Jia Y, Zhang J. Serum exosomal m6A demethylase FTO promotes gefitinib resistance in non-small cell lung cancer by up-regulating FLRT3, PTGIS and SIRPα expression. Pulm Pharmacol Ther 2023; 82:102227. [PMID: 37330168 DOI: 10.1016/j.pupt.2023.102227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/10/2023] [Accepted: 06/07/2023] [Indexed: 06/19/2023]
Abstract
This study investigates the molecular mechanism of FTO m6A demethylase in non-small cell lung cancer (NSCLC) and gefitinib resistance using GEO and TCGA databases. Differentially expressed genes (DEGs) were screened from RNA-seq data sets of serum exosomes of gefitinib-resistant NSCLC patients in the GEO database and the NSCLC data set in the GEPIA2 database. From this analysis, FTO m6A demethylase was found to be significantly upregulated in the serum exosomes of gefitinib-resistant NSCLC patients. To identify downstream genes affected by FTO m6A demethylase, weighted correlation network analysis and differential expression analysis were performed, resulting in the identification of three key downstream genes (FLRT3, PTGIS, and SIRPA). Using these genes, the authors constructed a prognostic risk assessment model. Patients with high-risk scores exhibited a significantly worse prognosis. The model could predict the prognosis of NSCLC with high accuracy measured by AUC values of 0.588, 0.608, and 0.603 at 1, 3, and 5 years respectively. Furthermore, m6A sites were found in FLRT3, PTGIS, and SIRPA genes, and FTO was significantly positively correlated with the expression of these downstream genes. Overall, FTO m6A demethylase promotes gefitinib resistance in NSCLC patients by upregulating downstream FLRT3, PTGIS, and SIRPA expression, with these three downstream genes serving as strong prognostic indicators.
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Affiliation(s)
- Qi Wang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Lin Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Zhenzhong Su
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Wei Li
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Yuxi Jia
- Orthopedic Research Center, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China.
| | - Jie Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China.
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Song B, Huang D, Zhang Y, Wei Z, Su J, Pedro de Magalhães J, Rigden DJ, Meng J, Chen K. m6A-TSHub: Unveiling the Context-specific m 6A Methylation and m 6A-affecting Mutations in 23 Human Tissues. GENOMICS, PROTEOMICS & BIOINFORMATICS 2023; 21:678-694. [PMID: 36096444 PMCID: PMC10787194 DOI: 10.1016/j.gpb.2022.09.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 08/19/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
As the most pervasive epigenetic marker present on mRNAs and long non-coding RNAs (lncRNAs), N6-methyladenosine (m6A) RNA methylation has been shown to participate in essential biological processes. Recent studies have revealed the distinct patterns of m6A methylome across human tissues, and a major challenge remains in elucidating the tissue-specific presence and circuitry of m6A methylation. We present here a comprehensive online platform, m6A-TSHub, for unveiling the context-specific m6A methylation and genetic mutations that potentially regulate m6A epigenetic mark. m6A-TSHub consists of four core components, including (1) m6A-TSDB, a comprehensive database of 184,554 functionally annotated m6A sites derived from 23 human tissues and 499,369 m6A sites from 25 tumor conditions, respectively; (2) m6A-TSFinder, a web server for high-accuracy prediction of m6A methylation sites within a specific tissue from RNA sequences, which was constructed using multi-instance deep neural networks with gated attention; (3) m6A-TSVar, a web server for assessing the impact of genetic variants on tissue-specific m6A RNA modifications; and (4) m6A-CAVar, a database of 587,983 The Cancer Genome Atlas (TCGA) cancer mutations (derived from 27 cancer types) that were predicted to affect m6A modifications in the primary tissue of cancers. The database should make a useful resource for studying the m6A methylome and the genetic factors of epitranscriptome disturbance in a specific tissue (or cancer type). m6A-TSHub is accessible at www.xjtlu.edu.cn/biologicalsciences/m6ats.
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Affiliation(s)
- Bowen Song
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350004, China; Department of Mathematical Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China; Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - Daiyun Huang
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China; Department of Computer Science, University of Liverpool, Liverpool L69 7ZB, United Kingdom.
| | - Yuxin Zhang
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - Zhen Wei
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China; Institute of Ageing & Chronic Disease, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - Jionglong Su
- School of AI and Advanced Computing, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - João Pedro de Magalhães
- Institute of Ageing & Chronic Disease, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - Daniel J Rigden
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - Jia Meng
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom; Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China; AI University Research Centre, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - Kunqi Chen
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350004, China.
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21
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Zhai J, Chen H, Wong CC, Peng Y, Gou H, Zhang J, Pan Y, Chen D, Lin Y, Wang S, Kang W, To KF, Chen Z, Nie Y, He HH, Sung JJY, Yu J. ALKBH5 Drives Immune Suppression Via Targeting AXIN2 to Promote Colorectal Cancer and Is a Target for Boosting Immunotherapy. Gastroenterology 2023; 165:445-462. [DOI: https:/doi.org/10.1053/j.gastro.2023.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2023]
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22
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Zhai J, Chen H, Wong CC, Peng Y, Gou H, Zhang J, Pan Y, Chen D, Lin Y, Wang S, Kang W, To KF, Chen Z, Nie Y, He HH, Sung JJY, Yu J. ALKBH5 Drives Immune Suppression Via Targeting AXIN2 to Promote Colorectal Cancer and Is a Target for Boosting Immunotherapy. Gastroenterology 2023; 165:445-462. [PMID: 37169182 DOI: 10.1053/j.gastro.2023.04.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 04/18/2023] [Accepted: 04/23/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND & AIMS Immune checkpoint blockade therapy benefits only a small subset of patients with colorectal cancer (CRC), and identification of CRC-intrinsic events modulating immune checkpoint blockade efficacy is an unmet need. We found that AlkB homolog 5 (ALKBH5), an RNA N6-methyladenosine eraser, drives immunosuppression and is a molecular target to boost immune checkpoint blockade therapy in CRC. METHODS Clinical significance of ALKBH5 was evaluated in human samples (n = 205). Function of ALKBH5 was investigated in allografts, CD34+ humanized mice, and Alkbh5 knockin mice. Immunity change was determined by means of flow cytometry, immunofluorescence, and functional investigation. Methylated RNA immunoprecipitation sequencing and RNA sequencing were used to identify ALKBH5 targets. Vesicle-like nanoparticle-encapsulated ALKBH5-small interfering RNA was constructed for targeting ALKBH5 in vivo. RESULTS High ALKBH5 expression predicts poor prognosis in CRC. ALKBH5 induced myeloid-derived suppressor cell accumulation but reduced natural killer cells and cytotoxic CD8+ T cells to induce colorectal tumorigenesis in allografts, CD34+ humanized mice, and intestine-specific Alkbh5 knockin mice. Mechanistically, AXIN2, a Wnt suppressor, was identified as a target of ALKBH5. ALKBH5 binds and demethylates AXIN2 messenger RNA, which caused its dissociation from N6-methyladenosine reader IGF2BP1 and degradation, resulting in hyperactivated Wnt/β-catenin. Subsequently, Wnt/β-catenin targets, including Dickkopf-related protein 1 (DKK1) were induced by ALKBH5. ALKBH5-induced DKK1 recruited myeloid-derived suppressor cells to drive immunosuppression in CRC, and this effect was abolished by anti-DKK1 in vitro and in vivo. Finally, vesicle-like nanoparticle-encapsulated ALKBH5-small interfering RNA, or anti-DKK1 potentiated anti-PD1 treatment in suppressing CRC growth by enhancing antitumor immunity. CONCLUSIONS This study identified an ALKBH5-N6-methyladenosine-AXIN2-Wnt-DKK1 axis in CRC, which drives immune suppression to facilitate tumorigenesis. Targeting of ALKBH5 is a promising strategy for sensitizing CRC to immunotherapy.
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Affiliation(s)
- Jianning Zhai
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong
| | - Huarong Chen
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong; Department of Anesthesia and Intensive Care and Peter Hung Pain Research Institute, The Chinese University of Hong Kong, Hong Kong
| | - Chi Chun Wong
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong
| | - Yao Peng
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong; Department of Gastroenterology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Hongyan Gou
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong
| | - Jingwan Zhang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong
| | - Yasi Pan
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong
| | - Danyu Chen
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong
| | - Yufeng Lin
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong
| | - Shiyan Wang
- Princess Margaret Cancer Centre, University Health Network, Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Wei Kang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Ka Fai To
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Zhiwei Chen
- AIDS Institute and Department of Microbiology, State Key Laboratory of Emerging Infectious Disease, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Yuqiang Nie
- Department of Gastroenterology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Housheng Hansen He
- Princess Margaret Cancer Centre, University Health Network, Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Joseph Jao-Yiu Sung
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong; Lee Kong Chian School of Medicine, Nanyang Technology University, Singapore
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong-Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong.
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Meng Q, Schatten H, Zhou Q, Chen J. Crosstalk between m6A and coding/non-coding RNA in cancer and detection methods of m6A modification residues. Aging (Albany NY) 2023; 15:6577-6619. [PMID: 37437245 PMCID: PMC10373953 DOI: 10.18632/aging.204836] [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: 03/01/2023] [Accepted: 06/15/2023] [Indexed: 07/14/2023]
Abstract
N6-methyladenosine (m6A) is one of the most common and well-known internal RNA modifications that occur on mRNAs or ncRNAs. It affects various aspects of RNA metabolism, including splicing, stability, translocation, and translation. An abundance of evidence demonstrates that m6A plays a crucial role in various pathological and biological processes, especially in tumorigenesis and tumor progression. In this article, we introduce the potential functions of m6A regulators, including "writers" that install m6A marks, "erasers" that demethylate m6A, and "readers" that determine the fate of m6A-modified targets. We have conducted a review on the molecular functions of m6A, focusing on both coding and noncoding RNAs. Additionally, we have compiled an overview of the effects noncoding RNAs have on m6A regulators and explored the dual roles of m6A in the development and advancement of cancer. Our review also includes a detailed summary of the most advanced databases for m6A, state-of-the-art experimental and sequencing detection methods, and machine learning-based computational predictors for identifying m6A sites.
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Affiliation(s)
- Qingren Meng
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated with the Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA
| | - Qian Zhou
- International Cancer Center, Shenzhen University Medical School, Shenzhen, Guangdong Province, China
| | - Jun Chen
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated with the Southern University of Science and Technology, Shenzhen, Guangdong Province, China
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24
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Diao MN, Zhang XJ, Zhang YF. The critical roles of m6A RNA methylation in lung cancer: from mechanism to prognosis and therapy. Br J Cancer 2023; 129:8-23. [PMID: 36997662 PMCID: PMC10307841 DOI: 10.1038/s41416-023-02246-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 03/05/2023] [Accepted: 03/17/2023] [Indexed: 04/03/2023] Open
Abstract
Lung cancer, a highly malignant disease, greatly affects patients' quality of life. N6-methyladenosine (m6A) is one of the most common posttranscriptional modifications of various RNAs, including mRNAs and ncRNAs. Emerging studies have demonstrated that m6A participates in normal physiological processes and that its dysregulation is involved in many diseases, especially pulmonary tumorigenesis and progression. Among these, regulators including m6A writers, readers and erasers mediate m6A modification of lung cancer-related molecular RNAs to regulate their expression. Furthermore, the imbalance of this regulatory effect adversely affects signalling pathways related to lung cancer cell proliferation, invasion, metastasis and other biological behaviours. Based on the close association between m6A and lung cancer, various prognostic risk models have been established and novel drugs have been developed. Overall, this review comprehensively elaborates the mechanism of m6A regulation in the development of lung cancer, suggesting its potential for clinical application in the therapy and prognostic assessment of lung cancer.
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Affiliation(s)
- Mei-Ning Diao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Xiao-Jing Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yin-Feng Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China.
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25
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Singh M, Bhaskar D, Bhatia P, Thakur R, Sharma P, Bansal D, Jain R, Trehan A. Evaluation of FTO polymorphism in 6-mercaptopurine related intolerance in children with acute lymphoblastic leukemia. Cancer Chemother Pharmacol 2023; 92:51-56. [PMID: 37256334 DOI: 10.1007/s00280-023-04546-3] [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: 02/10/2023] [Accepted: 05/17/2023] [Indexed: 06/01/2023]
Abstract
PURPOSE Thiopurine drugs like 6-Mercaptopurine (6MP) are the cornerstone of maintenance therapy in acute lymphoblastic leukemia (ALL). A recently described variant in alpha-ketoglutarate dependent dioxygenase (FTO) gene has been reported to play an important role in thiopurine induced myelosuppression. METHODS In this study, we genotyped a coding variant (p.Ala134Thr, rs79206939) and an intronic variant (rs16952570) of FTO in 174 Indian children (age ≤ 12 years) with ALL on maintenance phase of chemotherapy and examined correlation with the risk of thiopurine induced myelosuppression and hepatic toxicity. RESULTS The prevalence of FTO-rs16952570 polymorphism was 18.4% (32/174) with 142 (82%) cases having TT genotype, 26 (15%) cases with TC genotype and 6 (3.4%) cases having CC genotype. FTO-rs79206939 was absent and non-polymorphic in our study group. The mean dose of 6-MP during 36 weeks of maintenance of TT, TC and CC carriers of FTO-rs16952570 was 53.7, 53.6 and 54.1 mg/m2/day. Number of patients tolerating starting dose of 60 mg/m2/day was significantly higher in CC (50%) than TT/TC (14%) genotype carrying cases (p = 0.014). However, no statistical significance was observed for total leukocyte count (TLC), absolute neutrophil count (ANC) as well as for platelets counts in patients harboring FTO-rs16952570 TT/TC/CC genotype at 4, 8, 12, 24 and 36 weeks after start of thiopurine therapy. Further, no significant correlation was noted between number of weeks of chemotherapy interruptions or episodes of febrile neutropenia and no evidence of hepatotoxicity was found with the genotype studied. CONCLUSION Polymorphism in FTO-rs16952570 did not show any correlation with thiopurine related toxicity in ALL patients.
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Affiliation(s)
- Minu Singh
- Haematology-Oncology Unit, Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Divya Bhaskar
- Haematology-Oncology Unit, Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Prateek Bhatia
- Haematology-Oncology Unit, Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Rozy Thakur
- Haematology-Oncology Unit, Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pankaj Sharma
- Haematology-Oncology Unit, Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepak Bansal
- Haematology-Oncology Unit, Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Richa Jain
- Haematology-Oncology Unit, Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Amita Trehan
- Haematology-Oncology Unit, Department of Paediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
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Xu J, Yin D, Zhang W, Xu Y. The role and mechanism of FTO in pulmonary vessels. Biotechnol Genet Eng Rev 2023:1-16. [PMID: 37154010 DOI: 10.1080/02648725.2023.2209413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Pulmonary vascular remodeling (PVR) is the main factor of pulmonary hypertension (PH). The pathological characteristics of PVR are vascular smooth muscle hyperplasia, hypertrophy, and extensive damage. In vivo experiments, the expression of FTO in PH rat lung tissues of different rat models of hypoxia PH was observed by immunohistochemical method. mRNA microarray analysis was used to analyze the differential expressed genes in rat lung tissues. In vitro experiments, we developed models of overexpression and knockdown of FTO to study the effect of FTO protein expression on cell apoptotic, cell cycle, and the abundance of m6A. The expression of FTO was increased in PH rats. FTO knockdown can inhibit the proliferation of PASMCs, thereby regulating the cell cycle and reducing the expression of Cyclin D1 and the abundance of m6A, while overexpression of FTO leads to increased expression of Cyclin D1 and the abundance of m6A. FTO destroys the stability of Cyclin D1 by regulating the abundance of Cyclin D1 m6A, causing cell cycle arrest and inducing cell proliferation, thus inducing the occurrence and development of PVR in PH.
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Affiliation(s)
- Jing Xu
- Department of Pharmacy, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, Jiangsu, China
| | - Dong Yin
- Department of endocrinology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, Jiangsu, China
| | - Wenjing Zhang
- Department of Pharmacy, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, Jiangsu, China
| | - Yi Xu
- Department of Pharmacy, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, Jiangsu, China
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Yang Q, Al-Hendy A. The Functional Role and Regulatory Mechanism of FTO m 6A RNA Demethylase in Human Uterine Leiomyosarcoma. Int J Mol Sci 2023; 24:7957. [PMID: 37175660 PMCID: PMC10178470 DOI: 10.3390/ijms24097957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Uterine leiomyosarcoma (uLMS) is the most frequent subtype of uterine sarcoma that presents a poor prognosis and high rates of recurrence and metastasis. The origin and molecular mechanism underlying and driving its clinical and biological behavior remain largely unknown. Recently, we and others have revealed the role of microRNAs, DNA methylation, and histone modifications in contributing to the pathogenesis of uLMS. However, the connection between reversible m6A RNA methylation and uLMS pathogenesis remains unclear. In this study, we assessed the role and mechanism of FTO m6A RNA demethylase in the pathogenesis of uLMS. Immunohistochemistry analysis revealed that the levels of RNA demethylases FTO and ALKBH5 were aberrantly upregulated in uLMS tissues compared to adjacent myometrium with a significant change by histochemical scoring assessment (p < 0.01). Furthermore, the inhibition of FTO demethylase with its small, potent inhibitor (Dac51) significantly decreased the uLMS proliferation dose-dependently via cell cycle arrest. Notably, RNA-seq analysis revealed that the inhibition of FTO with Dac51 exhibited a significant decrease in cell-cycle-related genes, including several CDK members, and a significant increase in the expression of CDKN1A, which correlated with a Dac51-exerted inhibitory effect on cell proliferation. Moreover, Dac51 treatment allowed the rewiring of several critical pathways, including TNFα signaling, KRAS signaling, inflammation response, G2M checkpoint, and C-Myc signaling, among others, leading to the suppression of the uLMS phenotype. Moreover, transcription factor (TF) analyses suggested that epitranscriptional alterations by Dac51 may alter the cell cycle-related gene expression via TF-driven pathways and epigenetic networks in uLMS cells. This intersection of RNA methylation and other epigenetic controls and pathways provides a framework to better understand uterine diseases, particularly uLMS pathogenesis with a dysregulation of RNA methylation machinery. Therefore, targeting the vulnerable epitranscriptome may provide an additional regulatory layer for a promising and novel strategy for treating patients with this aggressive uterine cancer.
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Affiliation(s)
- Qiwei Yang
- Department of Obstetrics and Gynecology, University of Chicago, Chicago, IL 60637, USA
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Liu W, Yasui M, Sassa A, You X, Wan J, Cao Y, Xi J, Zhang X, Honma M, Luan Y. FTO regulates the DNA damage response via effects on cell-cycle progression. MUTATION RESEARCH/GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2023; 887:503608. [PMID: 37003652 DOI: 10.1016/j.mrgentox.2023.503608] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/02/2023]
Abstract
The fat mass and obesity-associated protein FTO is an "eraser" of N6-methyladenosine, the most abundant mRNA modification. FTO plays important roles in tumorigenesis. However, its activities have not been fully elucidated and its possible involvement in DNA damage - the early driving event in tumorigenesis - remains poorly characterized. Here, we have investigated the role of FTO in the DNA damage response (DDR) and its underlying mechanisms. We demonstrate that FTO responds to various DNA damage stimuli. FTO is overexpressed in mice following exposure to the promutagens aristolochic acid I and benzo[a]pyrene. Knockout of the FTO gene in TK6 cells, via CRISPR/Cas9, increased genotoxicity induced by DNA damage stimuli (micronucleus and TK mutation assays). Cisplatin- and diepoxybutane-induced micronucleus frequencies and methyl methanesulfonate- and azathioprine-induced TK mutant frequencies were also higher in FTO KO cells. We investigated the potential roles of FTO in DDR. RNA sequencing and enrichment analysis revealed that FTO deletion disrupted the p38 MAPK pathway and inhibited the activation of nucleotide excision repair and cell-cycle-related pathways following cisplatin (DNA intrastrand cross-links) treatment. These effects were confirmed by western blotting and qRT-PCR. FTO deletion impaired cell-cycle arrest at the G2/M phase following cisplatin and diepoxybutane treatment (flow cytometry analysis). Our findings demonstrated that FTO is involved in several aspects of DDR, acting, at least in part, by impairing cell cycle progression.
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Zhu Y, Yang J, Li Y, Xu J, Fang Z. Demethylase FTO enhances the PI3K/Akt signaling to promote gastric cancer malignancy. Med Oncol 2023; 40:130. [PMID: 36971873 DOI: 10.1007/s12032-023-01990-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/06/2023] [Indexed: 03/29/2023]
Abstract
Enhanced expression of fat mass and obesity-associated protein (FTO) has been reported in gastric cancer (GC). Bioinformatical studies indicate that FTO expression is correlated with the patients' overall survival (OS). How FTO exerts its promotion effects on GC development and affects OS remains largely unknown. In this study, the prognostic relevance of FTO expression in human GC tissues and the molecular mechanisms underlying FTO's promotion roles were investigated. Kaplan-Meier survival curve analysis revealed that the patients with high FTO levels had shorter OS compared to those with low FTO expression (p < 0.0001). Univariate and multivariate COX regression analyses showed that the patients' OS was affected by FTO status (p < 0.0001, p = 0.001, respectively). FTO knockdown in HGC27 cells by shRNAs reduced cell proliferation, colony formation, migration and invasion, while FTO overexpression in AGS cells had reverse effects. FTO knockdown in HGC27 cells also suppressed the tumor growth in a mouse xenograft model. High-throughput transcriptome sequencing indicated that FTO enhanced the PI3K/Akt signaling, which was confirmed in vitro. In summary, our research revealed that FTO is a potent prognostic biomarker of GC. FTO enhances the PI3K/Akt signaling and thus, promotes GC development.
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Li Q, Zhu Q. The role of demethylase AlkB homologs in cancer. Front Oncol 2023; 13:1153463. [PMID: 37007161 PMCID: PMC10060643 DOI: 10.3389/fonc.2023.1153463] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023] Open
Abstract
The AlkB family (ALKBH1-8 and FTO), a member of the Fe (II)- and α-ketoglutarate-dependent dioxygenase superfamily, has shown the ability to catalyze the demethylation of a variety of substrates, including DNA, RNA, and histones. Methylation is one of the natural organisms’ most prevalent forms of epigenetic modifications. Methylation and demethylation processes on genetic material regulate gene transcription and expression. A wide variety of enzymes are involved in these processes. The methylation levels of DNA, RNA, and histones are highly conserved. Stable methylation levels at different stages can coordinate the regulation of gene expression, DNA repair, and DNA replication. Dynamic methylation changes are essential for the abilities of cell growth, differentiation, and division. In some malignancies, the methylation of DNA, RNA, and histones is frequently altered. To date, nine AlkB homologs as demethylases have been identified in numerous cancers’ biological processes. In this review, we summarize the latest advances in the research of the structures, enzymatic activities, and substrates of the AlkB homologs and the role of these nine homologs as demethylases in cancer genesis, progression, metastasis, and invasion. We provide some new directions for the AlkB homologs in cancer research. In addition, the AlkB family is expected to be a new target for tumor diagnosis and treatment.
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Affiliation(s)
- Qiao Li
- Department of Orthopedic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Qingsan Zhu
- Department of Orthopedic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
- *Correspondence: Qingsan Zhu,
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Yin H, Hong H, Yin P, Lu W, Niu S, Chen X, Xia Y, Jiang P, Huang Z. Increased levels of N6-methyladenosine in peripheral blood RNA: a perspective diagnostic biomarker and therapeutic target for non-small cell lung cancer. Clin Chem Lab Med 2023; 61:473-484. [PMID: 36542027 DOI: 10.1515/cclm-2022-1033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 12/11/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Due to lack of effective biomarkers for non-small cell lung cancer (NSCLC), many patients are diagnosed at an advanced stage, which leads to poor prognosis. Dysregulation of N6-methyladenosine (m6A) RNA contributes significantly to tumorigenesis and tumor progression. However, the diagnostic value of m6A RNA status in peripheral blood to screen NSCLC remains unclear. METHODS Peripheral blood samples from 152 NSCLC patients and 64 normal controls (NCs) were applied to assess the m6A RNA levels. Bioinformatics and qRT-PCR analysis were performed to identify the specific immune cells in peripheral blood cells and investigate the mechanism of the alteration of m6A RNA levels. RESULTS Robust elevation of m6A RNA levels of peripheral blood cells was exhibited in the NSCLC group. Moreover, the m6A levels increased as NSCLC progressed, and reduced after treatment. The m6A levels contained area under the curve (AUC) was 0.912, which was remarkably greater than the AUCs for CEA (0.740), CA125 (0.743), SCC (0.654), and Cyfra21-1 (0.730). Furthermore, the combination of these traditional biomarkers with m6A levels elevated the AUC to 0.970. Further analysis established that the expression of m6A erasers FTO and ALKBH5 were both markedly reduced and negatively correlated with m6A levels in peripheral blood of NSCLC. Additionally, GEO database and flow cytometry analysis implied that FTO and ALKBH5 attributes to peripheral CD4+ T cells proportion and activated the immune functions of T cells. CONCLUSIONS These findings unraveled that m6A RNA of peripheral blood immune cells was a prospective biomarker for the diagnosis of NSCLC.
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Affiliation(s)
- Haofan Yin
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China.,Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, P.R. China.,Department of Clinical Laboratory, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, P.R. China
| | - Honghai Hong
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Ping Yin
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Wenhua Lu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, P.R. China
| | - Shiqiong Niu
- Department of Clinical Laboratory, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, P.R. China
| | - Xinchun Chen
- Blood Transfusion Department, University of Chineses Academy of Sciences-Shenzhen Hospital, Shenzhen, Guangdong, P.R. China
| | - Yong Xia
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Ping Jiang
- Department of Clinical Medical Laboratory, Guangzhou First' People Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, P.R. China
| | - Zhijian Huang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, P.R. China
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Luo Q, Yang Z, Deng R, Pang X, Han X, Liu X, Du J, Tian Y, Wu J, Tang C. Comprehensive analysis of prognosis of patients with GBM based on 4 m6A-related lncRNAs and immune cell infiltration. Heliyon 2023; 9:e12838. [PMID: 36747529 PMCID: PMC9898620 DOI: 10.1016/j.heliyon.2023.e12838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 12/25/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023] Open
Abstract
Objective To investigate the immune cell infiltration status in glioblastoma multiforme (GBM) and construct a novel prognostic risk model that can predict patients' prognosis. Methods The Cancer Genome Atlas (TCGA) database was used to obtain RNA-sequence information and relevant clinical data. We performed Pearson correlation, univariate Cox regression to screen m6A-related prognostic lncRNA. GMB patients' samples were separated into different clusters through the ConsensusClusterPlus package. The risk score model was established through LASSO regression analysis. Besides, KEGG pathway enrichment analysis was implemented. CIBERSORT algorithm was used to analyze the difference of 22 types of immune cell infiltration in different cluster of GBM patient. Cox regression analyses were used to verify the independence of the model and correlation analysis was performed to demonstrate the link between our model and clinical characteristics of GBM patients. Experiments were used to validate the differential expression of the model lncRNA in patients with different prognosis. Results 17 lncRNA related to prognosis were screened from 1021 m6A-related lncRNAs. Further, four m6A-related lncRNAs that were significantly correlated with GBM prognosis were selected to establish our prognostic risk model, which had excellent accuracy and can independently predict the prognosis of GBM patients. The infiltration fractions of T regulatory cells, T cells CD4 memory activated and neutrophils were positively associated with risk score, which suggested a significant relationship between the model and tumor immune microenvironment. Conclusion The m6A-related RNA risk model offered potential for identifying biomarkers of therapy and predicting prognosis of GBM patients.
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Affiliation(s)
- Qisheng Luo
- Department of Neurosurgery, Affiliated Hospital of Youjiang Medical University for Nationalities, BaiSe,Guangxi province, 533000, China
| | - Zhenxiu Yang
- Department of Oncology, The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China
| | - Renzhi Deng
- Department of Neurosurgery(Trauma Surgery), The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China
| | - Xianhui Pang
- Department of Neurosurgery(Trauma Surgery), The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China
| | - Xu Han
- Department of Neurosurgery(Trauma Surgery), The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China
| | - Xinfu Liu
- Department of Neurosurgery(Trauma Surgery), The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China
| | - Jiahai Du
- Department of Neurosurgery(Trauma Surgery), The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China
| | - Yingzhao Tian
- Department of Neurosurgery(Trauma Surgery), The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China
| | - Jingzhan Wu
- Department of Neurosurgery(Trauma Surgery), The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China,Corresponding author.
| | - Chunhai Tang
- Department of Neurosurgery(Trauma Surgery), The Second Affiliated Hospital of Guangxi Medical University,NanNing, Guangxi province,530000, China,Corresponding author.
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Abdollahi S, Hasanpour Ardekanizadeh N, Poorhosseini SM, Gholamalizadeh M, Roumi Z, Goodarzi MO, Doaei S. Unraveling the Complex Interactions between the Fat Mass and Obesity-Associated (FTO) Gene, Lifestyle, and Cancer. Adv Nutr 2022; 13:2406-2419. [PMID: 36104156 PMCID: PMC9776650 DOI: 10.1093/advances/nmac101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/28/2022] [Accepted: 09/12/2022] [Indexed: 01/29/2023] Open
Abstract
Carcinogenesis is a complicated process and originates from genetic, epigenetic, and environmental factors. Recent studies have reported a potential critical role for the fat mass and obesity-associated (FTO) gene in carcinogenesis through different signaling pathways such as mRNA N6-methyladenosine (m6A) demethylation. The most common internal modification in mammalian mRNA is the m6A RNA methylation that has significant biological functioning through regulation of cancer-related cellular processes. Some environmental factors, like physical activity and dietary intake, may influence signaling pathways engaged in carcinogenesis, through regulating FTO gene expression. In addition, people with FTO gene polymorphisms may be differently influenced by cancer risk factors, for example, FTO risk allele carriers may need a higher intake of nutrients to prevent cancer than others. In order to obtain a deeper viewpoint of the FTO, lifestyle, and cancer-related pathway interactions, this review aims to discuss upstream and downstream pathways associated with the FTO gene and cancer. The present study discusses the possible mechanisms of interaction of the FTO gene with various cancers and provides a comprehensive picture of the lifestyle factors affecting the FTO gene as well as the possible downstream pathways that lead to the effect of the FTO gene on cancer.
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Affiliation(s)
- Sepideh Abdollahi
- Department of Medical Genetics, School of Medicine, Tehran University of
Medical Sciences, Tehran, Iran
| | - Naeemeh Hasanpour Ardekanizadeh
- Department of Clinical Nutrition, School of Nutrition and Food Sciences,
Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Maryam Gholamalizadeh
- Cancer Research Center, Shahid Beheshti University of Medical
Sciences, Tehran, Iran
| | - Zahra Roumi
- Department of Nutrition, Science and Research Branch, Islamic Azad
University, Tehran, Iran
| | - Mark O Goodarzi
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine,
Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Saeid Doaei
- Department of Community Nutrition, School of Nutrition and Food Sciences,
Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Wang X, Guo Z, Yan F. RNA Epigenetics in Chronic Lung Diseases. Genes (Basel) 2022; 13:genes13122381. [PMID: 36553648 PMCID: PMC9777603 DOI: 10.3390/genes13122381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/29/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Chronic lung diseases are highly prevalent worldwide and cause significant mortality. Lung cancer is the end stage of many chronic lung diseases. RNA epigenetics can dynamically modulate gene expression and decide cell fate. Recently, studies have confirmed that RNA epigenetics plays a crucial role in the developing of chronic lung diseases. Further exploration of the underlying mechanisms of RNA epigenetics in chronic lung diseases, including lung cancer, may lead to a better understanding of the diseases and promote the development of new biomarkers and therapeutic strategies. This article reviews basic information on RNA modifications, including N6 methylation of adenosine (m6A), N1 methylation of adenosine (m1A), N7-methylguanosine (m7G), 5-methylcytosine (m5C), 2'O-methylation (2'-O-Me or Nm), pseudouridine (5-ribosyl uracil or Ψ), and adenosine to inosine RNA editing (A-to-I editing). We then show how they relate to different types of lung disease. This paper hopes to summarize the mechanisms of RNA modification in chronic lung disease and finds a new way to develop early diagnosis and treatment of chronic lung disease.
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Affiliation(s)
- Xiaorui Wang
- Department of Ophthalmology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362002, China
| | - Zhihou Guo
- Center for Molecular Diagnosis and Therapy, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362002, China
| | - Furong Yan
- Center for Molecular Diagnosis and Therapy, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362002, China
- Correspondence:
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Wang Z, Shen L, Wang J, Huang J, Tao H, Zhou X. Prognostic analysis of m6A-related genes as potential biomarkers in idiopathic pulmonary fibrosis. Front Genet 2022; 13:1059325. [PMID: 36523766 PMCID: PMC9744785 DOI: 10.3389/fgene.2022.1059325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/07/2022] [Indexed: 10/28/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive, fatal lung disease with limited treatment options. N6-methyladenosine (m6A) is a reversible RNA modification and has been implicated in various biological processes. However, there are few studies on m6A in IPF. This project mainly explores the prognostic value of m6A-related genes as potential biomarkers in IPF, in order to establish a set of accurate prognostic prediction model. In this study, we used GSE28042 dataset in GEO database to screen out 218 m6A-related candidate genes with high IPF correlation and high differential expression through differentially expressed gene analysis, WGCNA and m6A correlation analysis. The genes associated with the prognosis of IPF were screened out by univariate Cox regression analysis, LASSO analysis, and multivariate Cox regression analysis, and the multivariate Cox model of prognostic risk of related genes was constructed. We found that RBM11, RBM47, RIC3, TRAF5 and ZNF14 were key genes in our model. Finally, the prognostic prediction ability and independent prognostic characteristics of the risk model were evaluated by survival analysis and independent prognostic analysis, and verified by the GSE93606 dataset, which proved that the prognostic risk model we constructed has a strong and stable prediction efficiency.
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Affiliation(s)
- Zhiqiang Wang
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Department of Biochemistry and Molecular Biology, Medical College, Soochow University, Suzhou, China
| | - Lanyu Shen
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Junjie Wang
- Department of Biochemistry and Molecular Biology, Medical College, Soochow University, Suzhou, China
| | - Jiaqian Huang
- Department of Biochemistry and Molecular Biology, Medical College, Soochow University, Suzhou, China
| | - Huimin Tao
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiumin Zhou
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
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36
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Zhang L, Zhang Y, Zhang S, Qiu L, Zhang Y, Zhou Y, Han J, Xie J. Translational Regulation by eIFs and RNA Modifications in Cancer. Genes (Basel) 2022; 13:2050. [PMID: 36360287 PMCID: PMC9690228 DOI: 10.3390/genes13112050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/25/2022] [Accepted: 11/04/2022] [Indexed: 11/04/2023] Open
Abstract
Translation is a fundamental process in all living organisms that involves the decoding of genetic information in mRNA by ribosomes and translation factors. The dysregulation of mRNA translation is a common feature of tumorigenesis. Protein expression reflects the total outcome of multiple regulatory mechanisms that change the metabolism of mRNA pathways from synthesis to degradation. Accumulated evidence has clarified the role of an increasing amount of mRNA modifications at each phase of the pathway, resulting in translational output. Translation machinery is directly affected by mRNA modifications, influencing translation initiation, elongation, and termination or altering mRNA abundance and subcellular localization. In this review, we focus on the translation initiation factors associated with cancer as well as several important RNA modifications, for which we describe their association with cancer.
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Affiliation(s)
- Linzhu Zhang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- The Third People’s Hospital of Chengdu, Clinical College of Southwest Jiao Tong University, Chengdu 610014, China
| | - Yaguang Zhang
- State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-Related Molecular Network and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Su Zhang
- State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-Related Molecular Network and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lei Qiu
- State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-Related Molecular Network and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yang Zhang
- State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-Related Molecular Network and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ying Zhou
- State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-Related Molecular Network and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Junhong Han
- State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-Related Molecular Network and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jiang Xie
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- The Third People’s Hospital of Chengdu, Clinical College of Southwest Jiao Tong University, Chengdu 610014, China
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Zhang D, Wornow S, Peehl DM, Rankin EB, Brooks JD. The controversial role and therapeutic development of the m6A demethylase FTO in renal cell carcinoma. Transl Oncol 2022; 25:101518. [PMID: 36037557 PMCID: PMC9440419 DOI: 10.1016/j.tranon.2022.101518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 11/22/2022] Open
Abstract
Fat mass and obesity-associated (FTO) protein, the first m6A demethylase identified in 2011, regulates multiple aspects of RNA biology including splicing, localization, stability, and translation. Accumulating data show that FTO is involved in numerous physiological processes and is implicated in multiple cancers including renal cell carcinoma (RCC). However, the exact role of FTO in RCC remains controversial. Some studies demonstrated that decreased FTO expression was associated with aggressive clinical features and shorter overall survival in clear cell RCC (ccRCC) patients, while others found that FTO inhibition selectively reduced the growth and survival of VHL-deficient ccRCC cells in vitro and in vivo. Here, we review the evidence supporting either a promoting or suppressive role of FTO in kidney cancers, the mechanisms of action of FTO, and recent progress in developing FTO inhibitors.
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Affiliation(s)
- Dalin Zhang
- Department of Urology, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Sarah Wornow
- Undergraduate Student Program, Brown University, Providence, RI, USA
| | - Donna M Peehl
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Erinn B Rankin
- Department of Radiation Oncology, School of Medicine, Stanford University, Stanford, CA, USA
| | - James D Brooks
- Department of Urology, School of Medicine, Stanford University, Stanford, CA 94305, USA.
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lncRNAs AC156455.1 and AC104532.2 as Biomarkers for Diagnosis and Prognosis in Colorectal Cancer. DISEASE MARKERS 2022; 2022:4872001. [PMID: 36277972 PMCID: PMC9584711 DOI: 10.1155/2022/4872001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/14/2022] [Accepted: 09/21/2022] [Indexed: 11/18/2022]
Abstract
Background. There have been countless studies to date assessing specific oncogenic pathways in a range of tumor classes, but the role of N6-methyladenosine- (m6A-) related long noncoding RNAs (lncRNAs) in colorectal cancer (CRC) remains to be defined. Methods. We analyzed such m6A-related lncRNAs by conducting analyses of the Pearson correlation with information originating from the databank of The Cancer Genome Atlas (TCGA). The prognostic relevance of these lncRNAs in CRC was then assessed through a series of univariate Cox regression analyses, leading to the identification of two different m6A modification patterns; they are associated with clinical outcomes and have been used to estimate tumor immune microenvironment (TIME) by the CIBERSORT and ESTIMATE algorithms. We tested the expression of m6A-related lncRNAs in twelve pairs of colorectal cancer tissues and adjacent normal tissues from patients by qRT-PCR. Results. We discovered the prognostic risk signature composed of six m6A-related lncRNAs based upon TCGA data. When the overall survival of cases in the dataset of TCGA was investigated, the low-risk cases survived longer than the high-risk CRC cases in both the training and testing cohorts. ROC curves further indicated that m6A-related lncRNA prognostic signature (m6A-LPS) can effectively estimate the survival outcomes of patients in both of these cohorts. We found that lncRNAs AC156455.1 and AC104532.2 were upregulated in twelve colorectal cancer tissues compared with adjacent normal tissues using qRT-PCR. Conclusions. This data highlights that the lncRNAs AC156455.1 and AC104532.2 in CRC can be used as biomarkers for diagnostics and prognosis in CRC, demonstrating their potential as targets when designing novel immunotherapeutic regimens.
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Huang H, Wu W, Lu Y, Pan X. The development and validation of a m6A-lncRNAs based prognostic model for overall survival in lung squamous cell carcinoma. J Thorac Dis 2022; 14:4055-4072. [PMID: 36389308 PMCID: PMC9641337 DOI: 10.21037/jtd-22-1185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/28/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND No biomarkers have been identified for the prognosis of lung squamous cell carcinoma (LUSC). Risk models based on m6A-lncRNAs help to predict survival in some cancers. However, very few studies have reported m6A-lncRNA risk models in LUSC. We aimed to construct a prognostic model based on m6A-lncRNAs in LUSC. METHODS The clinical and RNA-sequencing information of 504 LUSC patients were downloaded from The Cancer Genome Atlas (TCGA) database. Prognostic m6A-lncRNAs were identified by a Pearson correlation analysis and univariate Cox regression analysis. The ConsensusClusterPlus algorithm was used to cluster the prognostic m6A-lncRNAs. The overall survival (OS) and clinicopathological characteristics of the 2 clusters were compared. A gene set enrichment analysis (GSEA) analysis was performed to analyze the genes enriched in the 2 clusters. A least absolute shrinkage and selection operator (LASSO) Cox regression analysis was used to construct the risk-score model. Two hundred and forty eight patients were randomly chosen from TCGA-LUSC cohort for the training set. The receiver operating characteristic (ROC) curve analysis was used to assess the predictive ability of the model. The clinical characteristics and OS in the high- and low-risk groups were compared. The independent prognostic value of the model was tested by Cox regression analyses. RESULTS Thirteen m6A-lncRNAs were identified as prognostic lncRNAs and classified into cluster A and cluster B. The OS of patients in cluster A was better than that of patients in cluster B (P<0.001). Patients in cluster B had higher expressions of immune checkpoints. Immune score, stromal score, and ESTIMATE score were higher in cluster B (P<0.001). Seven of the 13 lncRNAs were used to construct the risk-score model. Patients in the high-risk group had a worse OS. ROC curves showed a under the curve (AUC) of 0.639 in the training set and 0.624 in the validation set. A high risk was associated with cluster B, a high immune score, and stage III-IV disease. Patients in the high-risk group had increased expressions of immune checkpoints. The Cox regression analyses showed that the risk-score model had independent prognostic value for OS. The risk-score model retained its prognostic value in different subgroups. CONCLUSIONS The m6A-lncRNA risk-score model is an independent prognostic factor for OS in LUSC patients. However, the risk-score model need to be further tested clinically.
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Affiliation(s)
- Hanwen Huang
- Department of Oncology, Yunfu People’s Hospital, Yunfu, China
| | - Weibin Wu
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yiyu Lu
- Oncology Department, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan, China
| | - Xiaofen Pan
- Department of Oncology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
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Tsuchiya K, Yoshimura K, Iwashita Y, Inoue Y, Ohta T, Watanabe H, Yamada H, Kawase A, Tanahashi M, Ogawa H, Funai K, Shinmura K, Suda T, Sugimura H. m 6A demethylase ALKBH5 promotes tumor cell proliferation by destabilizing IGF2BPs target genes and worsens the prognosis of patients with non-small-cell lung cancer. Cancer Gene Ther 2022; 29:1355-1372. [PMID: 35318440 PMCID: PMC9576599 DOI: 10.1038/s41417-022-00451-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 01/03/2022] [Accepted: 02/24/2022] [Indexed: 12/14/2022]
Abstract
The modification of N6-methyladenosine (m6A) in RNA and its eraser ALKBH5, an m6A demethylase, play an important role across various steps of human carcinogenesis. However, the involvement of ALKBH5 in non-small-cell lung cancer (NSCLC) development remains to be completely elucidated. The current study revealed that the expression of ALKBH5 was increased in NSCLC and increased expression of ALKBH5 worsened the prognosis of patients with NSCLC. In vitro study revealed that ALKBH5 knockdown suppressed cell proliferation ability of PC9 and A549 cells and promoted G1 arrest and increased the number of apoptotic cells. Furthermore, ALKBH5 overexpression increased the cell proliferation ability of the immortalized cell lines. Microarray analysis and western blotting revealed that the expression of CDKN1A (p21) or TIMP3 was increased by ALKBH5 knockdown. These alterations were offset by a double knockdown of both ALKBH5 and one of the IGF2BPs. The decline of mRNAs was, at least partly, owing to the destabilization of these mRNAs by one of the IGF2BPs. In conclusions, the ALKBH5-IGF2BPs axis promotes cell proliferation and tumorigenicity, which in turn causes the unfavorable prognosis of NSCLC.
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Affiliation(s)
- Kazuo Tsuchiya
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Katsuhiro Yoshimura
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yuji Iwashita
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yusuke Inoue
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Tsutomu Ohta
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
- Department of Physical Therapy, Faculty of Health and Medical Sciences, Tokoha University, Hamamatsu, Japan
| | - Hirofumi Watanabe
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hidetaka Yamada
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Akikazu Kawase
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Masayuki Tanahashi
- Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, Hamamatsu, Japan
| | - Hiroshi Ogawa
- Department of Pathology, Seirei Mikatahara General Hospital, Hamamatsu, Japan
| | - Kazuhito Funai
- First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kazuya Shinmura
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Haruhiko Sugimura
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
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41
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Xu L, Zhou L, Yan C, Li L. Emerging role of N6-methyladenosine RNA methylation in lung diseases. Exp Biol Med (Maywood) 2022; 247:1862-1872. [PMID: 36278325 PMCID: PMC9679358 DOI: 10.1177/15353702221128564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
In recent years, with the increase of air pollution, smoking, aging, and respiratory infection, the incidence rate and mortality of lung diseases are increasing annually, which has become a major hazard to human health. N6-methyladenosine (m6A) RNA methylation is the most abundant modifications in eukaryotes, and such modified RNA can be specifically recognized and combined by m6A recognition proteins and then mediate RNA splicing, maturation, enucleation, degradation, and translation. More and more studies have revealed that the m6A modification is involved in the pathogenesis and development of some diseases; however, the mechanisms of m6A in lung diseases are poorly understood. In this review, we summarize the latest progress in the biological function of m6A modifications in lung diseases and discuss the potential therapeutic and prognostic strategies. The dysregulation of global m6A levels and m6A regulators may affect the occurrence and development of asthma, chronic obstructive pulmonary disease, lung cancer, and other lung diseases through inflammation and immune function. In lung cancer, this modification has an important impact on malignant cell proliferation, migration, invasion, and drug resistance. In addition, abnormally changed m6A-modified proteins in lung cancer tissue samples and circulating tumor cells (CTCs) may be used as diagnostic and prognostic markers of lung cancer. Models composed of multiple m6A regulators can be used to evaluate the risk prediction or prognosis of asthma and pulmonary fibrosis. In general, the in-depth study of m6A modifications is a frontier direction in disease research. It provides novel insights for understanding of the molecular mechanisms underlying disease occurrence, development, and drug resistance, as well as for the development of effective novel therapeutics.
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Affiliation(s)
- Limin Xu
- Huzhou Central Hospital, Affiliated Hospital of Huzhou Normal University, Huzhou 313000, China,Huzhou Hospital, Zhejiang University, Huzhou 313000, China
| | - Lingyan Zhou
- Huzhou Central Hospital, Affiliated Hospital of Huzhou Normal University, Huzhou 313000, China,Huzhou Hospital, Zhejiang University, Huzhou 313000, China
| | - Chenxin Yan
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China
| | - Liqin Li
- Huzhou Central Hospital, Affiliated Hospital of Huzhou Normal University, Huzhou 313000, China,Huzhou Hospital, Zhejiang University, Huzhou 313000, China,Liqin Li.
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Loss of METTL3 attenuates blastic plasmacytoid dendritic cell neoplasm response to PRMT5 inhibition via IFN signaling. Blood Adv 2022; 6:5330-5344. [PMID: 35482445 PMCID: PMC9631685 DOI: 10.1182/bloodadvances.2021006306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 04/08/2022] [Indexed: 02/05/2023] Open
Abstract
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare and aggressive hematologic malignancy with poor clinical outcomes. Dysregulated MYC expression, which is associated with protein arginine methyltransferase 5 (PRMT5) dependency, is a recurrent feature of BPDCN. Although recent studies have reported a PRMT5 gene signature in BPDCN patient samples, the role of PRMT5 in BPDCN remains unexplored. Here, we demonstrate that BPDCN is highly sensitive to PRMT5 inhibition. Consistent with the upregulation of PRMT5 in BPDCN, we show that pharmacological inhibition (GSK3326595) of PRMT5 inhibits the growth of the patient-derived BPDCN cell line CAL-1 in vitro and mitigated tumor progression in our mouse xenograft model. Interestingly, RNA-sequencing (RNA-seq) analysis revealed that PRMT5 inhibition increases intron retention in several key RNA methylation genes, including METTL3, which was accompanied by a dose-dependent decrease in METTL3 expression. Notably, the function of cellular m6A RNA modification of METTL3 was also affected by PRMT5 inhibition in CAL-1 cells. Intriguingly, METTL3 depletion in CAL-1 caused a significant increase in interferon (IFN) signaling, which was further elevated upon PRMT5 inhibition. Importantly, we discovered that this increase in IFN signaling attenuated the sensitivity of METTL3-depleted CAL-1 cells to PRMT5 inhibition. Correspondingly, stimulation of IFN signaling via TLR7 agonists weakened CAL-1 cell sensitivity to PRMT5 inhibition. Overall, our findings implicate PRMT5 as a therapeutic target in BPDCN and provide insight into the involvement of METTL3 and the IFN pathway in regulating the response to PRMT5 inhibition.
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Islam R, Zhao L, Wang Y, Lu-Yao G, Liu LZ. Epigenetic Dysregulations in Arsenic-Induced Carcinogenesis. Cancers (Basel) 2022; 14:cancers14184502. [PMID: 36139662 PMCID: PMC9496897 DOI: 10.3390/cancers14184502] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Arsenic is a crucial environmental metalloid whose high toxicity levels negatively impact human health. It poses significant health concerns to millions of people in developed and developing countries such as the USA, Canada, Bangladesh, India, China, and Mexico by enhancing sensitivity to various types of diseases, including cancers. However, how arsenic causes changes in gene expression that results in heinous conditions remains elusive. One of the proposed essential mechanisms that still has seen limited research with regard to causing disease upon arsenic exposure is the dysregulation of epigenetic components. In this review, we have extensively summarized current discoveries in arsenic-induced epigenetic modifications in carcinogenesis and angiogenesis. Importantly, we highlight the possible mechanisms underlying epigenetic reprogramming through arsenic exposure that cause changes in cell signaling and dysfunctions of different epigenetic elements.
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Gan X, Dai Z, Ge C, Yin H, Wang Y, Tan J, Sun S, Zhou W, Yuan S, Yang F. FTO promotes liver inflammation by suppressing m6A mRNA methylation of IL-17RA. Front Oncol 2022; 12:989353. [PMID: 36172147 PMCID: PMC9511030 DOI: 10.3389/fonc.2022.989353] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022] Open
Abstract
Background Previous studies have demonstrated that inflammation-related interleukin-17 (IL-17) signaling plays a pivotal role in the pathogenesis of non-alcoholic steatohepatitis (NASH)- and alcoholic liver disease (ALD)-induced hepatocellular carcinoma (HCC). However, rare efforts have been intended at implementing the analysis of N6-methyladenosine (m6A) mRNA methylation to elucidate the underpinning function of the IL-17 receptor A (IL-17RA) during the inflammation-carcinogenesis transformation of HCC. Methods We performed methylated RNA immunoprecipitation sequencing (MeRIP-seq) using normal, HCC tumor and paired tumor adjacent tissues from patients to investigate the dynamic changes of m6A mRNA methylation in the process of HCC. Additionally, murine non-alcoholic fatty liver disease (NAFLD) model and murine chronic liver injury model were utilized to investigate the role of IL-17RA regulated by m6A mRNA modulator fat mass and obesity-associated (FTO) in chronic hepatic inflammation. Results MeRIP-seq revealed the reduction of m6A mRNA methylation of IL-17RA in tumor adjacent tissues with chronic inflammation, suggesting the potential role of IL-17RA in the inflammation-carcinogenesis transformation of HCC. Besides, we demonstrated that FTO, rather than methyltransferase-like 3 (METTL3), methyltransferase-like 14 (METTL14), and alkB homolog 5 (ALKBH5) functions as a main modulator for the decrease of m6A mRNA methylation of IL-17RA via knockdown and overexpression of FTO in vitro and in vivo. Conclusions Overall, we elaborated the underlying mechanisms of the increase of IL-17RA resulting in chronic inflammation via the demethylation of FTO in tumor adjacent tissues and demonstrated that targeting the specific m6A modulator FTO may provide an effective treatment for hepatitis patients to prevent the development of HCC.
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Affiliation(s)
- Xiaojie Gan
- The department of Medical Genetics, Naval Medical University, Shanghai, China
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
| | - Zhihui Dai
- The department of Medical Genetics, Naval Medical University, Shanghai, China
| | - Chunmei Ge
- The department of Medical Genetics, Naval Medical University, Shanghai, China
| | - Haozan Yin
- The department of Medical Genetics, Naval Medical University, Shanghai, China
| | - Yuefan Wang
- The department of Medical Genetics, Naval Medical University, Shanghai, China
| | - Jian Tan
- The department of Medical Genetics, Naval Medical University, Shanghai, China
| | - Shuhan Sun
- The department of Medical Genetics, Naval Medical University, Shanghai, China
| | - Weiping Zhou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
- *Correspondence: Weiping Zhou, ; Shengxian Yuan, ; Fu Yang,
| | - Shengxian Yuan
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
- *Correspondence: Weiping Zhou, ; Shengxian Yuan, ; Fu Yang,
| | - Fu Yang
- The department of Medical Genetics, Naval Medical University, Shanghai, China
- *Correspondence: Weiping Zhou, ; Shengxian Yuan, ; Fu Yang,
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45
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Qiu FS, He JQ, Zhong YS, Guo MY, Yu CH. Implications of m6A methylation and microbiota interaction in non-small cell lung cancer: From basics to therapeutics. Front Cell Infect Microbiol 2022; 12:972655. [PMID: 36118041 PMCID: PMC9478539 DOI: 10.3389/fcimb.2022.972655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
N6-methyladenine (m6A) is one of the most common RNA epigenetic modifications in all higher eukaryotes. Increasing evidence demonstrated that m6A-related proteins, acted as oncogenes or tumor suppressors, are abnormally expressed in the cell lines and tissues of non-small cell lung cancer (NSCLC). In addition, lung as the special immune organ contacts with the outer environments and thereby inevitably suffers from different types of microbial pathogen attack. Those microbial pathogens affect the development, progression, and clinical outcomes of NSCLC via altering host m6A modification to disrupt pulmonary immune homeostasis and increase the susceptibility; conversely, host cells modulate m6A modification to repress bacterial colonization. Therefore, m6A harbors the potential to be the novel biomarkers and targets for predicting poor prognosis and chemotherapy sensitivity of patients with lung cancer. In this paper, we provided an overview of the biological properties of m6A-modifying enzymes, and the mechanistic links among lung microbiota, m6A modification and NSCLC. Although the flood of novel m6A-related inhibitors represents many dramatic improvements in NSCLC therapy, their efficacy and toxicity in NSCLC are explored to address these pivotal gaps in the field.
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Affiliation(s)
- Fen-Sheng Qiu
- Key Laboratory of Experimental Animal and Safety Evaluation, Zhejiang Academy of Medical Sciences (Hangzhou Medical College), Hangzhou, China
| | - Jia-Qi He
- Pharmaceutical Department, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu-Sen Zhong
- Key Laboratory of Experimental Animal and Safety Evaluation, Zhejiang Academy of Medical Sciences (Hangzhou Medical College), Hangzhou, China
| | - Mei-Ying Guo
- Key Laboratory of Experimental Animal and Safety Evaluation, Zhejiang Academy of Medical Sciences (Hangzhou Medical College), Hangzhou, China
| | - Chen-Huan Yu
- Key Laboratory of Experimental Animal and Safety Evaluation, Zhejiang Academy of Medical Sciences (Hangzhou Medical College), Hangzhou, China
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China
- Institute of Basic Medicine and Cancer, Chinese Academy of Sciences, Hangzhou, China
- *Correspondence: Chen-Huan Yu,
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46
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Jing L, Du Y, Fu D. Characterization of tumor immune microenvironment and cancer therapy for head and neck squamous cell carcinoma through identification of a genomic instability-related lncRNA prognostic signature. Front Genet 2022; 13:979575. [PMID: 36105083 PMCID: PMC9465021 DOI: 10.3389/fgene.2022.979575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/20/2022] [Indexed: 11/13/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) represents one of the most prevalent and malignant tumors of epithelial origins with unfavorable outcomes. Increasing evidence has shown that dysregulated long non-coding RNAs (lncRNAs) correlate with tumorigenesis and genomic instability (GI), while the roles of GI-related lncRNAs in the tumor immune microenvironment (TIME) and predicting cancer therapy are still yet to be clarified. In this study, transcriptome and somatic mutation profiles with clinical parameters were obtained from the TCGA database. Patients were classified into GI-like and genomic stable (GS)-like groups according to the top 25% and bottom 25% cumulative counts of somatic mutations. Differentially expressed lncRNAs (DElncRNAs) between GI- and GS-like groups were identified as GI-related lncRNAs. These lncRNA-related coding genes were enriched in cancer-related KEGG pathways. Patients totaling 499 with clinical information were randomly divided into the training and validation sets. A total of 18 DElncRNAs screened by univariate Cox regression analysis were associated with overall survival (OS) in the training set. A GI-related lncRNA signature that comprised 10 DElncRNAs was generated through least absolute shrinkage and selection operator (Lasso)-Cox regression analysis. Patients in the high-risk group have significantly decreased OS vs. patients in the low-risk group, which was verified in internal validation and entire HNSCC sets. Integrated HNSCC sets from GEO confirmed the notable survival stratification of the signature. The time-dependent receiver operating characteristic curve demonstrated that the signature was reliable. In addition, the signature retained a strong performance of OS prediction for patients with various clinicopathological features. Cell composition analysis showed high anti-tumor immunity in the low-risk group which was evidenced by increased infiltrating CD8+ T cells and natural killer cells and reduced cancer-associated fibroblasts, which was convinced by immune signatures analysis via ssGSEA algorithm. T helper/IFNγ signaling, co-stimulatory, and co-inhibitory signatures showed increased expression in the low-risk group. Low-risk patients were predicted to be beneficial to immunotherapy, which was confirmed by patients with progressive disease who had high risk scores vs. complete remission patients. Furthermore, the drugs that might be sensitive to HNSCC were identified. In summary, the novel prognostic GILncRNA signature provided a promising approach for characterizing the TIME and predicting therapeutic strategies for HNSCC patients.
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Affiliation(s)
- Lijun Jing
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Denggang Fu,
| | - Yabing Du
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Denggang Fu,
| | - Denggang Fu
- School of Medicine, Indiana University, Indianapolis, IN, United States
- *Correspondence: Denggang Fu,
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RNA Editing Enzyme ADAR1 Regulates METTL3 in an Editing Dependent Manner to Promote Breast Cancer Progression via METTL3/ARHGAP5/YTHDF1 Axis. Int J Mol Sci 2022; 23:ijms23179656. [PMID: 36077054 PMCID: PMC9456332 DOI: 10.3390/ijms23179656] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/15/2022] [Accepted: 08/23/2022] [Indexed: 11/29/2022] Open
Abstract
A-to-I RNA editing and m6A modification are two of the most prevalent types of RNA modifications controlling gene expression in mammals and play very important roles in tumorigenesis and tumor progression. However, the functional roles and correlations of these two RNA modifications remain to be further investigated in cancer. Herein, we show that ADAR1, an A-to-I RNA-editing enzyme, interacts with METTL3 and increases its protein level to promote the proliferation, migration and invasion of breast cancer cells through a mechanism connecting ADAR1, METTL3 and YTHDF1. We show that both ADAR1 and METTL3 are upregulated in breast cancer samples, and ADAR1 positively correlates with METTL3; ADAR1 edits METTL3 mRNA and changes its binding site to miR532-5p, leading to increased METTL3 protein, which further targets ARHGAP5, recognized by YTHDF1. Additionally, we show that loss of ADAR1 significantly inhibits breast cancer growth in vivo. Collectively, our findings identify the ADAR1–METTL3 axis as a novel, important pathway that connects A-to-I editing and m6A RNA modifications during breast cancer progression.
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48
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Fang Z, Mei W, Qu C, Lu J, Shang L, Cao F, Li F. Role of m6A writers, erasers and readers in cancer. Exp Hematol Oncol 2022; 11:45. [PMID: 35945641 PMCID: PMC9361621 DOI: 10.1186/s40164-022-00298-7] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 08/04/2022] [Indexed: 02/06/2023] Open
Abstract
The N(6)-methyladenosine (m6A) modification is the most pervasive modification of human RNAs. In recent years, an increasing number of studies have suggested that m6A likely plays important roles in cancers. Many studies have demonstrated that m6A is involved in the biological functions of cancer cells, such as proliferation, invasion, metastasis, and drug resistance. In addition, m6A is closely related to the prognosis of cancer patients. In this review, we highlight recent advances in understanding the function of m6A in various cancers. We emphasize the importance of m6A to cancer progression and look forward to describe future research directions.
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Affiliation(s)
- Zhen Fang
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wentong Mei
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Chang Qu
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jiongdi Lu
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Liang Shang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
| | - Feng Cao
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
| | - Fei Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
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del Valle-Morales D, Le P, Saviana M, Romano G, Nigita G, Nana-Sinkam P, Acunzo M. The Epitranscriptome in miRNAs: Crosstalk, Detection, and Function in Cancer. Genes (Basel) 2022; 13:genes13071289. [PMID: 35886072 PMCID: PMC9316458 DOI: 10.3390/genes13071289] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/09/2022] [Accepted: 07/19/2022] [Indexed: 02/06/2023] Open
Abstract
The epitranscriptome encompasses all post-transcriptional modifications that occur on RNAs. These modifications can alter the function and regulation of their RNA targets, which, if dysregulated, result in various diseases and cancers. As with other RNAs, miRNAs are highly modified by epitranscriptomic modifications such as m6A methylation, 2′-O-methylation, m5C methylation, m7G methylation, polyuridine, and A-to-I editing. miRNAs are a class of small non-coding RNAs that regulates gene expression at the post-transcriptional level. miRNAs have gathered high clinical interest due to their role in disease, development, and cancer progression. Epitranscriptomic modifications alter the targeting, regulation, and biogenesis of miRNAs, increasing the complexity of miRNA regulation. In addition, emerging studies have revealed crosstalk between these modifications. In this review, we will summarize the epitranscriptomic modifications—focusing on those relevant to miRNAs—examine the recent crosstalk between these modifications, and give a perspective on how this crosstalk expands the complexity of miRNA biology.
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Affiliation(s)
- Daniel del Valle-Morales
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; (D.d.V.-M.); (P.L.); (M.S.); (G.R.); (P.N.-S.)
| | - Patricia Le
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; (D.d.V.-M.); (P.L.); (M.S.); (G.R.); (P.N.-S.)
| | - Michela Saviana
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; (D.d.V.-M.); (P.L.); (M.S.); (G.R.); (P.N.-S.)
| | - Giulia Romano
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; (D.d.V.-M.); (P.L.); (M.S.); (G.R.); (P.N.-S.)
| | - Giovanni Nigita
- Comprehensive Cancer Center, Department of Cancer Biology and Genetics, The Ohio State University, Columbus, OH 43210, USA;
| | - Patrick Nana-Sinkam
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; (D.d.V.-M.); (P.L.); (M.S.); (G.R.); (P.N.-S.)
| | - Mario Acunzo
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; (D.d.V.-M.); (P.L.); (M.S.); (G.R.); (P.N.-S.)
- Correspondence:
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50
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Epitranscriptomics Changes the Play: m 6A RNA Modifications in Apoptosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1401:163-171. [PMID: 35781217 DOI: 10.1007/5584_2022_721] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Apoptosis is a form of programmed cell death that is essential for cellular and organismal homeostasis. Any irregularities that disturb the balance between apoptosis and cell survival have severe implications, such as improper development or life-threatening diseases. Thus, it is highly critical to maintain a proper rate of apoptosis throughout development. In fact, several complex transcriptional and posttranscriptional mechanisms exist in eukaryotes to critically regulate the rate of apoptotic processes. Recent studies suggest that not only RNA sequences but also their modifications, such as m6A methylation, play a fundamental role in these transcriptional and posttranscriptional processes. A specific set of proteins, called writer, eraser, and reader of m6A marks, modulate the rate of apoptosis by determining the m6A repertoire and the fate of certain transcripts associated with apoptosis. In this Review, we will cover the dynamic m6A RNA modifications and their impact on modulation of apoptosis.
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