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Gan Z, Guo Y, Zhao M, Ye Y, Liao Y, Liu B, Yin J, Zhou X, Yan Y, Yin Y, Ren W. Excitatory amino acid transporter supports inflammatory macrophage responses. Sci Bull (Beijing) 2024; 69:2405-2419. [PMID: 38614854 DOI: 10.1016/j.scib.2024.03.055] [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: 12/20/2023] [Revised: 01/28/2024] [Accepted: 03/25/2024] [Indexed: 04/15/2024]
Abstract
Excitatory amino acid transporters (EAATs) are responsible for excitatory amino acid transportation and are associated with auto-immune diseases in the central nervous system and peripheral tissues. However, the subcellular location and function of EAAT2 in macrophages are still obscure. In this study, we demonstrated that LPS stimulation increases expression of EAAT2 (coded by Slc1a2) via NF-κB signaling. EAAT2 is necessary for inflammatory macrophage polarization through sustaining mTORC1 activation. Mechanistically, lysosomal EAAT2 mediates lysosomal glutamate and aspartate efflux to maintain V-ATPase activation, which sustains macropinocytosis and mTORC1. We also found that mice with myeloid depletion of Slc1a2 show alleviated inflammatory responses in LPS-induced systemic inflammation and high-fat diet induced obesity. Notably, patients with type II diabetes (T2D) have a higher level of expression of lysosomal EAAT2 and activation of mTORC1 in blood macrophages. Taken together, our study links the subcellular location of amino acid transporters with the fate decision of immune cells, which provides potential therapeutic targets for the treatment of inflammatory diseases.
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Affiliation(s)
- Zhending Gan
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yan Guo
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Muyang Zhao
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yuyi Ye
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yuexia Liao
- School of Nursing & School of Public Health, Yangzhou University, Yangzhou 225009, China
| | - Bingnan Liu
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Jie Yin
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Xihong Zhou
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yuqi Yan
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yulong Yin
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Wenkai Ren
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China.
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Wu S, Wang H, Yang Q, Liu Z, Du J, Wang L, Chen S, Lu Q, Yang DH. METTL3 regulates M6A methylation-modified EBV-pri-miR-BART3-3p to promote NK/T cell lymphoma growth. Cancer Lett 2024; 597:217058. [PMID: 38880226 DOI: 10.1016/j.canlet.2024.217058] [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: 02/17/2024] [Revised: 05/20/2024] [Accepted: 06/08/2024] [Indexed: 06/18/2024]
Abstract
OBJECTIVE N6-methyladenosine (M6A) is the most prevalent epigenetic alteration. Methyltransferase-like 3 (METTL3) is a key player in the control of M6A modification. Methyltransferase promote the processing of mature miRNA in an M6A-dependent manner, thereby participating in disease occurrence and development. However, the regulatory mechanism of M6A in NK/T cell lymphoma (NKTCL) remains unclear. PATIENTS AND METHODS We determined the expression of METTL3 and its correlation with clinicopathological features using qRT-PCR and immunohistochemistry. We evaluated the effects of METTL3 on NKTCL cells using dot blot assay, CCK8 assay and subcutaneous xenograft experiment. We then applied M6A sequencing combined with gene expression omnibus data to screen candidate targets of METTL3. Finally, we investigated the regulatory mechanism of METTL3 in NKTCL by methylated RNA immunoprecipitation and RNA immunoprecipitation (RIP) assays. RESULTS We demonstrated that METTL3 was highly expressed in NKTCL cells and tissues and indicated poor prognosis. The METTL3 expression was associated with NKTCL survival. Functionally, METTL3 promoted the proliferation capability of NKTCL cells in vitro and in vivo. Furthermore, EBV-miR-BART3-3p was identified as the downstream effector of METTL3, and silencing EBV-miR-BART3-3p inhibited the proliferation of NKTCL. Finally, we confirmed that PLCG2 as a target gene of EBVmiR-BART3-3p by relative assays. CONCLUSIONS We identified that METTL3 is significantly up-regulated in NKTCL and promotes NKTCL development. M6A modification contributes to the progression of NKTCL via the METTL3/EBV-miR-BART3-3p/PLCG2 axis. Our study is the first to report that M6A methylation has a critical role in NKTCL oncogenesis, and could be a potential target for NKTCL treatment.
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Affiliation(s)
- Shaojie Wu
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Hua Wang
- Department of Hematologic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
| | - Qixuan Yang
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Zhengyun Liu
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Jingwen Du
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Lei Wang
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Shuaijun Chen
- Department of ENT&HN Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Qisi Lu
- Department of Hematology, Foresea Life Insurance Guangzhou General Hospital, Guangzhou, 515500, China.
| | - Dong-Hua Yang
- New York College of Traditional Chinese Medicine, Mineola, NY, 11501, United States.
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Shi X, Wang X, Yao W, Shi D, Shao X, Lu Z, Chai Y, Song J, Tang W, Wang X. Mechanism insights and therapeutic intervention of tumor metastasis: latest developments and perspectives. Signal Transduct Target Ther 2024; 9:192. [PMID: 39090094 PMCID: PMC11294630 DOI: 10.1038/s41392-024-01885-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 05/29/2024] [Accepted: 06/10/2024] [Indexed: 08/04/2024] Open
Abstract
Metastasis remains a pivotal characteristic of cancer and is the primary contributor to cancer-associated mortality. Despite its significance, the mechanisms governing metastasis are not fully elucidated. Contemporary findings in the domain of cancer biology have shed light on the molecular aspects of this intricate process. Tumor cells undergoing invasion engage with other cellular entities and proteins en route to their destination. Insights into these engagements have enhanced our comprehension of the principles directing the movement and adaptability of metastatic cells. The tumor microenvironment plays a pivotal role in facilitating the invasion and proliferation of cancer cells by enabling tumor cells to navigate through stromal barriers. Such attributes are influenced by genetic and epigenetic changes occurring in the tumor cells and their surrounding milieu. A profound understanding of the metastatic process's biological mechanisms is indispensable for devising efficacious therapeutic strategies. This review delves into recent developments concerning metastasis-associated genes, important signaling pathways, tumor microenvironment, metabolic processes, peripheral immunity, and mechanical forces and cancer metastasis. In addition, we combine recent advances with a particular emphasis on the prospect of developing effective interventions including the most popular cancer immunotherapies and nanotechnology to combat metastasis. We have also identified the limitations of current research on tumor metastasis, encompassing drug resistance, restricted animal models, inadequate biomarkers and early detection methods, as well as heterogeneity among others. It is anticipated that this comprehensive review will significantly contribute to the advancement of cancer metastasis research.
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Affiliation(s)
- Xiaoli Shi
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Hepatobiliary Cancers, Nanjing, Jiangsu, China
- School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Xinyi Wang
- The First Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wentao Yao
- Department of Urology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu, China
| | - Dongmin Shi
- Department of Medical Oncology, Shanghai Changzheng Hospital, Shanghai, China
| | - Xihuan Shao
- The Fourth Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhengqing Lu
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Hepatobiliary Cancers, Nanjing, Jiangsu, China
| | - Yue Chai
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Hepatobiliary Cancers, Nanjing, Jiangsu, China
| | - Jinhua Song
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Hepatobiliary Cancers, Nanjing, Jiangsu, China.
| | - Weiwei Tang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Hepatobiliary Cancers, Nanjing, Jiangsu, China.
| | - Xuehao Wang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Hepatobiliary Cancers, Nanjing, Jiangsu, China.
- School of Medicine, Southeast University, Nanjing, Jiangsu, China.
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Li R, Kuang Y, Niu Y, Zhang S, Chen S, Su F, Wang J, Lin S, Liu D, Shen C, Liang L, Zheng SG, Jie L, Xiao Y, Xu H. FTO-mediated RNA m 6A methylation regulates synovial aggression and inflammation in rheumatoid arthritis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167341. [PMID: 39025373 DOI: 10.1016/j.bbadis.2024.167341] [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: 04/14/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 07/20/2024]
Abstract
Fibroblast-like synoviocytes (FLS) plays an important role in synovial inflammation and joint damage in rheumatoid arthritis (RA). As the most abundant mRNA modification, N6-methyladenosine (m6A) is involved in the development of various diseases; however, its role in RA remains to be defined. In this study, we reported the elevated expression of the m6A demethylase fat mass and obesity-associated protein (FTO) in FLS and synovium from RA patients. Functionally, FTO knockdown or treatment with FB23-2, an inhibitor of the mRNA m6A demethylase FTO, inhibited the migration, invasion and inflammatory response of RA FLS, however, FTO-overexpressed RA FLS exhibited increased migration, invasion and inflammatory response. We further demonstrated that FTO promoted ADAMTS15 mRNA stability in an m6A-IGF2BP1 dependent manner. Notably, the severity of arthritis was significantly reduced in CIA mice with FB23-2 administration or CIA rats with intra-articular injection of FTO shRNA. Our results illustrate the contribution of FTO-mediated m6A modification to joint damage and inflammation in RA and suggest that FTO might be a potential therapeutic target in RA.
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Affiliation(s)
- Ruiru Li
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Yu Kuang
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Yuanyuan Niu
- Department of General Practice, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Shuoyang Zhang
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Simin Chen
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Fan Su
- Department of Geriatrics, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Jingnan Wang
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Shuibin Lin
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Di Liu
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Chuyu Shen
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Liuqin Liang
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Song Guo Zheng
- Department of Immunology, School of Cell and Gene Therapy, Song Jiang Research Institutes, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Ligang Jie
- Department of Rheumatology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China.
| | - Youjun Xiao
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China.
| | - Hanshi Xu
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China.
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Vera R, Lamberti MJ, Gonzalez AL, Fernandez-Zapico ME. Epigenetic regulation of the tumor microenvironment: A leading force driving pancreatic cancer. Pancreatology 2024:S1424-3903(24)00685-9. [PMID: 39095296 DOI: 10.1016/j.pan.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 07/11/2024] [Accepted: 07/14/2024] [Indexed: 08/04/2024]
Abstract
Dysregulation of the epigenomic landscape of tumor cells has been implicated in the pathogenesis of pancreatic cancer. However, these alterations are not only restricted to neoplastic cells. The behavior of other cell populations in the tumor stroma such as cancer-associated fibroblasts, immune cells, and others are mostly regulated by epigenetic pathways. Here, we present an overview of the main cellular and acellular components of the pancreatic cancer tumor microenvironment and discuss how the epigenetic mechanisms operate at different levels in the stroma to establish a differential gene expression to regulate distinct cellular phenotypes contributing to pancreatic tumorigenesis.
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Affiliation(s)
- Renzo Vera
- Schulze Center for Novel Therapeutics, Division of Oncology Research, Rochester, MN, 55901, USA.
| | - María Julia Lamberti
- INBIAS-CONICET, Universidad Nacional de Río Cuarto (UNRC), Río Cuarto, Córdoba, 5800, Argentina
| | - Alina L Gonzalez
- Facultad de Ciencias Exactas y Naturales, Instituto de Ciencias de La Tierra y Ambientales de La Pampa (INCITAP), Universidad Nacional de La Pampa - Consejo Nacional de Investigaciones Científicas y Técnicas (UNLPam-CONICET), Santa Rosa, Argentina
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Zou Z, He C. The YTHDF proteins display distinct cellular functions on m 6A-modified RNA. Trends Biochem Sci 2024; 49:611-621. [PMID: 38677920 PMCID: PMC11227416 DOI: 10.1016/j.tibs.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/17/2024] [Accepted: 04/03/2024] [Indexed: 04/29/2024]
Abstract
YTHDF proteins are main cytoplasmic 'reader' proteins of RNA N6-methyladenosine (m6A) methylation in mammals. They are largely responsible for m6A-mediated regulation in the cell cytosol by controlling both mRNA translation and degradation. Recent functional and mechanistic investigations of the YTHDF proteins revealed that these proteins have different functions to enable versatile regulation of the epitranscriptome. Their divergent functions largely originate from their different amino acid sequences in the low-complexity N termini. Consequently, they have different phase separation propensities and possess distinct post-translational modifications (PTMs). Different PTMs, subcellular localizations, and competition among partner proteins have emerged as three major mechanisms that control the functions of these YTHDF proteins. We also summarize recent progress on critical roles of these YTHDF proteins in anticancer immunity and the potential for targeting these proteins for developing new anticancer therapies.
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Affiliation(s)
- Zhongyu Zou
- Department of Chemistry, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA
| | - Chuan He
- Department of Chemistry, The University of Chicago, Chicago, IL 60637, USA; Howard Hughes Medical Institute, The University of Chicago, Chicago, IL 60637, USA; Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics, The University of Chicago, Chicago, IL 60637, USA.
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Jia HR, Li WC, Wu L. The prognostic value of immune escape-related genes in lung adenocarcinoma. Transl Cancer Res 2024; 13:2647-2661. [PMID: 38988926 PMCID: PMC11231773 DOI: 10.21037/tcr-23-2295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 04/24/2024] [Indexed: 07/12/2024]
Abstract
Background Lung cancer is one of the most common cancers in humans, and lung adenocarcinoma (LUAD) has become the most common histological type of lung cancer. Immune escape promotes progression of LUAD from the early to metastatic late stages and is one of the main obstacles to improving clinical outcomes for immunotherapy targeting immune detection points. Our study aims to explore the immune escape related genes that are abnormally expressed in lung adenocarcinoma, providing assistance in predicting the prognosis of lung adenocarcinoma and targeted. Methods RNA data and related clinical details of patients with LUAD were obtained from The Cancer Genome Atlas (TCGA) database. Through weighted gene coexpression network analysis (WGCNA), 3112 key genes were screened and intersected with 182 immune escape genes obtained from a previous study to identify the immune escape-related genes (IERGs). The role of IERGs in LUAD was systematically explored through gene ontology (GO) and Kyoto Encyclopedia of Genes and Genome (KEGG) analyses, which were used to enrich the relevant pathways of IERGs. The least absolute shrinkage and selection operator (LASSO) algorithm and multivariate Cox regression analysis were used to identify the key prognostic genes, and a prognostic risk model was constructed. Estimation of Stromal and Immune Cells in Malignant Tumor Tissues Using Expression Data (ESTIMATE) and microenvironment cell populations (MCP) counter methods (which can accurately assess the amount of eight immune cell populations and two stromal cell groups) were used to analyze the tumor immune status of the high and low risk subgroups. The protein expression level of the differentially expressed genes in lung cancer samples was determined by using the Human Protein Atlas (HPA) database. A nomogram was constructed, and the prognostic risk model was verified via the Gene Expression Omnibus (GEO) datasets GSE72094 and GSE30219. Results Twenty differentially expressed IERGs were obtained. GO analysis of these 20 IERGs revealed that they were mainly associated with the regulation of immune system processes, immune responses, and interferon-γ enrichment in mediating signaling pathways and apoptotic signaling pathways; meanwhile, KEGG analysis revealed that IERGs were associated with necroptosis, antigen processing and presentation, programmed cell death ligand 1 (PD-L1) expression and programmed cell death 1 (PD-1) pathway in tumors, cytokine-cytokine receptor interactions, T helper cell 1 (Th1) and Th2 differentiation, and tumor necrosis factor signaling pathways. Using LASSO and Cox regression analysis, we constructed a four-gene model that could predict the prognosis of patients with LUAD, and the model was validated with a validation cohort. The immunohistochemical results of the HPA database showed that AHSA1 and CEP55 had low expression in normal lung tissue but high expression in lung cancer tissue. Conclusions We constructed an IERG-based model for predicting the prognosis of LUAD. Among the genes identified, CEP55 and AHSA1 may be potential prognostic and therapeutic targets, and reducing their expression may represent a novel approach in the treatment of LUAD.
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Affiliation(s)
- Hao Ran Jia
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wen Chao Li
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lin Wu
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
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Chen Q, Ao L, Zhao Q, Tang L, Xiong Y, Yuan Y, Wu X, Xing W, Li Z, Guo W, Liang H, Zheng SG, Lian Q, Lu D, Wan W, Xu X. WTAP/YTHDF1-mediated m 6A modification amplifies IFN-γ-induced immunosuppressive properties of human MSCs. J Adv Res 2024:S2090-1232(24)00256-X. [PMID: 38944238 DOI: 10.1016/j.jare.2024.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 06/21/2024] [Indexed: 07/01/2024] Open
Abstract
INTRODUCTION The immunosuppressive capacity of mesenchymal stem cells (MSCs) is dependent on the "license" of several pro-inflammatory factors to express immunosuppressive molecular profiles, which determines the therapeutic efficacy of MSCs in immune-mediated inflammatory diseases. Of those, interferon-γ (IFN-γ) is a key inducer for the expression of immunosuppressive molecular profiles; however, the mechanism underlying this effect is unknown. OBJECTIVES To elucidate the regulation mechanism and biological functions of N6-methyladenosine (m6A) modification in the immunosuppressive functions by the IFN-γ-licensing MSCs. METHODS Epitranscriptomic microarray analysis and MeRIP-qPCR assay were performed to identify the regulatory effect of WTAP in the IFN-γ-licensing MSCs. RIP-qPCR, western blot, qRT-PCR and RNA stability assays were used to determine the regulation of WTAP/m6A/YTHDF1 signaling axis in the expression of immunosuppressive molecules. Further, functional capacity of T cells was tested using flow cytometry, and both DSS-induced colitis mice and CIA mice were constructed to clarify the effect of WTAP and YTHDF1 in MSC-mediated immunosuppression. RESULTS We identified that IFN-γ increased the m6A methylation levels of immunosuppressive molecules, while WTAP deficiency abolished the IFN-γ-induced promotion of m6A modification. IFN-γ activated ERK signaling, which induced WTAP phosphorylation. Additionally, the stabilization of WTAP post-transcriptionally increased the mRNA expression of immunosuppressive molecules (IDO1, PD-L1, ICAM1, and VCAM1) in an m6A-YTHDF1-dependent manner; this effect further impacted the immunosuppressive capacity of IFN-γ licensing MSCs on activated T cells. Notably, WTAP/YTHDF1 overexpression enhanced the therapeutic efficacy of IFN-γ licensing MSCs and restructures the ecology of inflammation in both colitis and arthritis models. CONCLUSION Our results showed that m6A modification of IDO1, PD-L1, ICAM1, and VCAM1 mRNA mediated by WTAP-YTHDF1 is involved in the regulation of IFN-γ licensing MSCs immunosuppressive abilities, and shed a light to enhance the clinical therapeutic potential of IFN-γ-licensing MSCs.
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Affiliation(s)
- Quan Chen
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China; Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming 650500, China
| | - Luoquan Ao
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Qing Zhao
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Lu Tang
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Yanli Xiong
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China; Cancer Center, Daping Hospital, Army Medical University, Chongqing, China, No.10 Changjiang Zhi Rd, Yuzhong District, Chongqing 400042, China
| | - Yuchuan Yuan
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Xiaofeng Wu
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Wei Xing
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Zhan Li
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Wei Guo
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Huaping Liang
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Song Guo Zheng
- Department of Immunology, School of Cell and Gene Therapy, Songjiang Research Institute, Shanghai Songjiang District Central Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201600, China
| | - Qizhou Lian
- Faculty of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518000, China; Cord Blood Bank, Guangzhou Institute of Eugenics and Perinatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510000, China; State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Di Lu
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming 650500, China
| | - Weijun Wan
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China.
| | - Xiang Xu
- State Key Laboratory of Trauma and Chemical Poisoning, Department of Stem Cell and Regenerative Medicine, Daping Hospital, Army Medical University, Chongqing 400042, China; Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming 650500, China; Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China.
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Li Y, Jin H, Li Q, Shi L, Mao Y, Zhao L. The role of RNA methylation in tumor immunity and its potential in immunotherapy. Mol Cancer 2024; 23:130. [PMID: 38902779 PMCID: PMC11188252 DOI: 10.1186/s12943-024-02041-8] [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: 12/24/2023] [Accepted: 06/10/2024] [Indexed: 06/22/2024] Open
Abstract
RNA methylation, a prevalent post-transcriptional modification, has garnered considerable attention in research circles. It exerts regulatory control over diverse biological functions by modulating RNA splicing, translation, transport, and stability. Notably, studies have illuminated the substantial impact of RNA methylation on tumor immunity. The primary types of RNA methylation encompass N6-methyladenosine (m6A), 5-methylcytosine (m5C), N1-methyladenosine (m1A), and N7-methylguanosine (m7G), and 3-methylcytidine (m3C). Compelling evidence underscores the involvement of RNA methylation in regulating the tumor microenvironment (TME). By affecting RNA translation and stability through the "writers", "erasers" and "readers", RNA methylation exerts influence over the dysregulation of immune cells and immune factors. Consequently, RNA methylation plays a pivotal role in modulating tumor immunity and mediating various biological behaviors, encompassing proliferation, invasion, metastasis, etc. In this review, we discussed the mechanisms and functions of several RNA methylations, providing a comprehensive overview of their biological roles and underlying mechanisms within the tumor microenvironment and among immunocytes. By exploring how these RNA modifications mediate tumor immune evasion, we also examine their potential applications in immunotherapy. This review aims to provide novel insights and strategies for identifying novel targets in RNA methylation and advancing cancer immunotherapy efficacy.
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Affiliation(s)
- Yan Li
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Pathology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Haoer Jin
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Pathology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Qingling Li
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Pathology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Liangrong Shi
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yitao Mao
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Luqing Zhao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
- Department of Pathology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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10
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Sun X, Wang H, Pu X, Wu Y, Yuan X, Wang X, Lu H. Manipulating the tumour immune microenvironment by N6-methyladenosine RNA modification. Cancer Gene Ther 2024:10.1038/s41417-024-00791-7. [PMID: 38834772 DOI: 10.1038/s41417-024-00791-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/06/2024]
Abstract
N6-methyladenosine (m6A), a posttranscriptional regulatory mechanism, is the most common epigenetic modification in mammalian mRNA. M6A modifications play a crucial role in the developmental network of immune cells. The expression of m6A-related regulators often affects carcinogenesis and tumour suppression networks. In the tumour microenvironment, m6A-modified enzymes can affect the occurrence and progression of tumours by regulating the activation and invasion of tumour-associated immune cells. Immunotherapy, which utilises immune cells, has been demonstrated to be a powerful weapon in tumour treatment and is increasingly being used in the clinic. Here, we provide an updated and comprehensive overview of how m6A modifications affect invasive immune cells and their potential role in immune regulation. In addition, we summarise the regulation of epigenetic regulators associated with m6A modifications in tumour cells on the antitumour response of immune cells in the tumour immune microenvironment. These findings provide new insights into the role of m6A modifications in the immune response and tumour development, leading to the development of novel immunotherapies for cancer treatment.
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Affiliation(s)
- Xinyu Sun
- Department of Otorhinolaryngology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Department of Radiation Oncology, Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Huirong Wang
- Department of Otorhinolaryngology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xi Pu
- Department of Radiation Oncology, Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yuting Wu
- Department of Radiation Oncology, Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiao Yuan
- Department of Radiation Oncology, Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xu Wang
- Department of Radiation Oncology, Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Hanqiang Lu
- Department of Otorhinolaryngology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
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11
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Ma RT, Wang Y, Ji F, Chen JN, Wang TJ, Liu Y, Hou MX, Guo ZG. YTHDF1's grip on CRC vasculature: insights into LINC01106 and miR-449b-5p-VEGFA axis. Cancer Cell Int 2024; 24:195. [PMID: 38835070 DOI: 10.1186/s12935-024-03360-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 05/07/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND Investigating the unexplored territory of lncRNA m6A modification in colorectal cancer (CRC) vasculature, this study focuses on LINC01106 and YTHDF1. METHODS Clinical assessments reveal upregulated LINC01106 promoting vascular generation via the miR-449b-5p-VEGFA pathway. RESULTS YTHDF1, elevated in CRC tissues, emerges as an adverse prognostic factor. Functional experiments showcase YTHDF1's inhibitory effects on CRC cell dynamics. Mechanistically, Me-CLIP identifies m6A-modified LINC01106, validated as a YTHDF1 target through Me-RIP. CONCLUSIONS This study sheds light on the YTHDF1-mediated m6A modification of LINC01106, presenting it as a key player in suppressing CRC vascular generation.
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Affiliation(s)
- Rui-Ting Ma
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
- The Affiliated Hospital of Inner Mongolia Medical University, No.1, North Channel Road, Huimin District, Hohhot, 010050, China
| | - Yuanyuan Wang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Feng Ji
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Jian-Nan Chen
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Tian-Jun Wang
- Nanjing Medical University, Nanjing, Jiangsu, 210097, China
| | - Yan Liu
- The Affiliated Hospital of Inner Mongolia Medical University, No.1, North Channel Road, Huimin District, Hohhot, 010050, China
| | - Ming-Xing Hou
- The Affiliated Hospital of Inner Mongolia Medical University, No.1, North Channel Road, Huimin District, Hohhot, 010050, China.
| | - Zhi-Gang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China.
- The Academy of Life Sciences, Nanjing Normal University, Nanjing, 210097, China.
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12
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Xu C, Wang Z, Liu YJ, Duan K, Guan J. Harnessing GMNP-loaded BMSC-derived EVs to target miR-3064-5p via MEG3 overexpression: Implications for diabetic osteoporosis therapy in rats. Cell Signal 2024; 118:111055. [PMID: 38246512 DOI: 10.1016/j.cellsig.2024.111055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/07/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
Diabetic osteoporosis (DO) is a significant complication of diabetes, characterized by a decrease in bone mineral density and an increase in fracture risk. Magnetic nanoparticles (GMNPs) have emerged as potential drug carriers for various therapeutic applications. This study investigated the molecular mechanism of GMNPs loaded with bone marrow mesenchymal stem cell (BMSC) derived extracellular vesicles (EVs) overexpressing MEG3 target miR-3064-5p to induce NR4A3 for treating DO in rats. Initial analysis was carried out on GEO datasets GSE7158 and GSE62589, revealing a notable downregulation of NR4A3 in osteoporotic samples. Subsequent in vitro studies demonstrated the effective uptake of BMSC-EVs-MEG3 by osteoblasts and its potential to inhibit miR-3064-5p, activating the PINK1/Parkin signaling pathway and thus promoting mitochondrial autophagy, osteoblast proliferation, and differentiation. In vivo, experiments using DO rat models further substantiated the therapeutic efficacy of GMNPE-EVs-MEG3 in alleviating osteoporosis symptoms. In conclusion, GMNPs loaded with BMSC-EVs, through the delivery of MEG3 targeting miR-3064-5p, can effectively promote NR4A3 expression, activate the PINK1/Parkin pathway, and thereby enhance osteoblast proliferation and differentiation, offering a promising treatment for DO.
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Affiliation(s)
- Chen Xu
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China
| | - Zhaodong Wang
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China
| | - Ya Jun Liu
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China
| | - Keyou Duan
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China
| | - Jianzhong Guan
- Department of Orthopedics, Bengbu Medical University Affiliated to First Hospital, Bengbu 233000, Anhui Province, China; Anhui Province Key Laboratory of Tissue Transplantation (Bengbu Medical College), 2600 Donghai Avenue, Bengbu 233030, Anhui Province, China.
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13
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Yin H, Ju Z, Zhang X, Zuo W, Yang Y, Zheng M, Zhang X, Liu Y, Peng Y, Xing Y, Yang A, Zhang R. Inhibition of METTL3 in macrophages provides protection against intestinal inflammation. Cell Mol Immunol 2024; 21:589-603. [PMID: 38649449 PMCID: PMC11143309 DOI: 10.1038/s41423-024-01156-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/20/2024] [Indexed: 04/25/2024] Open
Abstract
Inflammatory bowel disease (IBD) is prevalent, and no satisfactory therapeutic options are available because the mechanisms underlying its development are poorly understood. In this study, we discovered that increased expression of methyltransferase-like 3 (METTL3) in macrophages was correlated with the development of colitis and that depletion of METTL3 in macrophages protected mice against dextran sodium sulfate (DSS)-induced colitis. Mechanistic characterization indicated that METTL3 depletion increased the YTHDF3-mediated expression of phosphoglycolate phosphatase (PGP), which resulted in glucose metabolism reprogramming and the suppression of CD4+ T helper 1 (Th1) cell differentiation. Further analysis revealed that glucose metabolism contributed to the ability of METTL3 depletion to ameliorate colitis symptoms. In addition, we developed two potent small molecule METTL3 inhibitors, namely, F039-0002 and 7460-0250, that strongly ameliorated DSS-induced colitis. Overall, our study suggests that METTL3 plays crucial roles in the progression of colitis and highlights the potential of targeting METTL3 to attenuate intestinal inflammation for the treatment of colitis.
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Affiliation(s)
- Huilong Yin
- Henan Key Laboratory of Immunology and Targeted Therapy, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- Molecular Immunology and Immunotherapy Laboratory, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Zhuan Ju
- Henan Key Laboratory of Immunology and Targeted Therapy, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xiang Zhang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Wenjie Zuo
- Henan Key Laboratory of Immunology and Targeted Therapy, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- Molecular Immunology and Immunotherapy Laboratory, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Yuhang Yang
- Henan Key Laboratory of Immunology and Targeted Therapy, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- Molecular Immunology and Immunotherapy Laboratory, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Minhua Zheng
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xiaofang Zhang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yuning Liu
- Henan Key Laboratory of Immunology and Targeted Therapy, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- Molecular Immunology and Immunotherapy Laboratory, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Yingran Peng
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Ying Xing
- Department of Endocrinology, Xi'an Daxing Hospital, Xi'an, Shaanxi, 710000, China
| | - Angang Yang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
| | - Rui Zhang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
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14
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Zhang J, Huang WQ, Zhang YR, Liang N, Li NP, Tan GK, Gong SX, Wang AP. Upregulation of eIF2α by m 6A modification accelerates the proliferation of pulmonary artery smooth muscle cells in MCT-induced pulmonary arterial hypertension rats. J Cardiovasc Transl Res 2024; 17:598-608. [PMID: 37973667 DOI: 10.1007/s12265-023-10458-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
Pulmonary arterial hypertension (PAH) is a malignant cardiovascular disease. Eukaryotic initiation factor 2α (eIF2α) plays an important role in the proliferation of pulmonary artery smooth muscle cells (PASMCs) in hypoxia-induced pulmonary hypertension (HPH) rats. However, the regulatory mechanism of eIF2α remains poorly understood in PAH rats. Here, we discover eIF2α is markedly upregulated in monocrotaline (MCT)-induced PAH rats, eIF2α can be upregulated by mRNA methylation, and upregulated eIF2α can promote PASMC proliferation in MCT-PAH rats. GSK2606414, eIF2α inhibitor, can downregulate the expression of eIF2α and alleviate PASMC proliferation in MCT-PAH rats. And we further discover the mRNA of eIF2α has a common sequence with N 6-methyladenosine (m6A) modification by bioinformatics analysis, and the expression of METTL3, WTAP, and YTHDF1 is upregulated in MCT-PAH rats. These findings suggest a potentially novel mechanism by which eIF2α is upregulated by m6A modification in MCT-PAH rats, which is involved in the pathogenesis of PAH.
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MESH Headings
- Animals
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- Pulmonary Artery/drug effects
- Cell Proliferation/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Myocytes, Smooth Muscle/drug effects
- Eukaryotic Initiation Factor-2/metabolism
- Eukaryotic Initiation Factor-2/genetics
- Up-Regulation
- Disease Models, Animal
- Rats, Sprague-Dawley
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/drug effects
- Male
- Cells, Cultured
- Pulmonary Arterial Hypertension/metabolism
- Pulmonary Arterial Hypertension/chemically induced
- Pulmonary Arterial Hypertension/pathology
- Pulmonary Arterial Hypertension/physiopathology
- Pulmonary Arterial Hypertension/genetics
- Monocrotaline/toxicity
- Adenosine/analogs & derivatives
- Adenosine/metabolism
- Methylation
- Signal Transduction
- RNA, Messenger/metabolism
- RNA, Messenger/genetics
- Methyltransferases/metabolism
- Methyltransferases/genetics
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Affiliation(s)
- Jing Zhang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Wen-Qian Huang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Institute of Clinical Research, Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, Hunan, People's Republic of China
- Department of Blood Transfusion, the First Affiliated of Hainan Medical University, Haikou, 570102, Hainan, People's Republic of China
| | - Yu-Rong Zhang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Na Liang
- Department of Anesthesiology, Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, Hunan, People's Republic of China
| | - Nan-Ping Li
- Department of Physiology, Institute of Neuroscience Research, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Department of Anesthesiology, Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, Hunan, People's Republic of China
| | - Gang-Kai Tan
- Department of Physiology, Institute of Neuroscience Research, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Department of Anesthesiology, Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, Hunan, People's Republic of China
| | - Shao-Xin Gong
- Department of Pathology, First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
| | - Ai-Ping Wang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
- Institute of Clinical Research, Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, Hunan, People's Republic of China.
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15
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Yang S, Xu L, Zhuang H, Li F, Lu Y. A new perspective on hematological malignancies: m6A modification in immune microenvironment. Front Immunol 2024; 15:1374390. [PMID: 38868768 PMCID: PMC11168112 DOI: 10.3389/fimmu.2024.1374390] [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: 01/22/2024] [Accepted: 05/08/2024] [Indexed: 06/14/2024] Open
Abstract
Immunotherapy for hematological malignancies is a rapidly advancing field that has gained momentum in recent years, primarily encompassing chimeric antigen receptor T-cell (CAR-T) therapies, immune checkpoint inhibitors, and other modalities. However, its clinical efficacy remains limited, and drug resistance poses a significant challenge. Therefore, novel immunotherapeutic targets and agents need to be identified. Recently, N6-methyladenosine (m6A), the most prevalent RNA epitope modification, has emerged as a pivotal factor in various malignancies. Reportedly, m6A mutations influence the immunological microenvironment of hematological malignancies, leading to immune evasion and compromising the anti-tumor immune response in hematological malignancies. In this review, we comprehensively summarize the roles of the currently identified m6A modifications in various hematological malignancies, with a particular focus on their impact on the immune microenvironment. Additionally, we provide an overview of the research progress made in developing m6A-targeted drugs for hematological tumor therapy, to offer novel clinical insights.
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Affiliation(s)
- Shiyu Yang
- Department of Hematology, The Affiliated People’s Hospital of Ningbo University, Ningbo, China
- Institute of Hematology, Ningbo University, Ningbo, China
| | - Liping Xu
- Department of Hematology, The Affiliated People’s Hospital of Ningbo University, Ningbo, China
- Institute of Hematology, Ningbo University, Ningbo, China
| | - Haihui Zhuang
- Department of Hematology, The Affiliated People’s Hospital of Ningbo University, Ningbo, China
- Institute of Hematology, Ningbo University, Ningbo, China
| | - Fenglin Li
- Department of Hematology, The Affiliated People’s Hospital of Ningbo University, Ningbo, China
- Institute of Hematology, Ningbo University, Ningbo, China
| | - Ying Lu
- Department of Hematology, The Affiliated People’s Hospital of Ningbo University, Ningbo, China
- Institute of Hematology, Ningbo University, Ningbo, China
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16
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Pinello N, Song R, Lee Q, Calonne E, Duan KL, Wong E, Tieng J, Mehravar M, Rong B, Lan F, Roediger B, Ma CJ, Yuan BF, Rasko JEJ, Larance M, Ye D, Fuks F, Wong JJL. Dynamic changes in RNA m 6A and 5 hmC influence gene expression programs during macrophage differentiation and polarisation. Cell Mol Life Sci 2024; 81:229. [PMID: 38780787 PMCID: PMC11116364 DOI: 10.1007/s00018-024-05261-9] [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: 02/06/2024] [Revised: 04/27/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024]
Abstract
RNA modifications are essential for the establishment of cellular identity. Although increasing evidence indicates that RNA modifications regulate the innate immune response, their role in monocyte-to-macrophage differentiation and polarisation is unclear. While m6A has been widely studied, other RNA modifications, including 5 hmC, remain poorly characterised. We profiled m6A and 5 hmC epitranscriptomes, transcriptomes, translatomes and proteomes of monocytes and macrophages at rest and pro- and anti-inflammatory states. Transcriptome-wide mapping of m6A and 5 hmC reveals enrichment of m6A and/or 5 hmC on specific categories of transcripts essential for macrophage differentiation. Our analyses indicate that m6A and 5 hmC modifications are present in transcripts with critical functions in pro- and anti-inflammatory macrophages. Notably, we also discover the co-occurrence of m6A and 5 hmC on alternatively-spliced isoforms and/or opposing ends of the untranslated regions (UTR) of mRNAs with key roles in macrophage biology. In specific examples, RNA 5 hmC controls the decay of transcripts independently of m6A. This study provides (i) a comprehensive dataset to interrogate the role of RNA modifications in a plastic system (ii) a resource for exploring different layers of gene expression regulation in the context of human monocyte-to-macrophage differentiation and polarisation, (iii) new insights into RNA modifications as central regulators of effector cells in innate immunity.
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Affiliation(s)
- Natalia Pinello
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown, 2050, Australia
- Functional Genomics Laboratory, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay
| | - Renhua Song
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown, 2050, Australia
| | - Quintin Lee
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown, 2050, Australia
| | - Emilie Calonne
- Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB Cancer Research Center (U-CRC), Jules Bordet Institute, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Kun-Long Duan
- The Molecular and Cell Biology Lab, Key Laboratory of Medical Epigenetics and Metabolism, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Emilie Wong
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown, 2050, Australia
| | - Jessica Tieng
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown, 2050, Australia
| | - Majid Mehravar
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown, 2050, Australia
| | - Bowen Rong
- Shanghai Key Laboratory of Medical Epigenetics, International Co-Laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, and Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Fei Lan
- Shanghai Key Laboratory of Medical Epigenetics, International Co-Laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, and Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Ben Roediger
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Skin Inflammation Group, Centenary Institute, The University of Sydney, Camperdown, 2050, Australia
- Autoimmunity, Transplantation and Inflammation (ATI) Disease Area, Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Cheng-Jie Ma
- School of Public Health, Wuhan University, Wuhan, 430071, China
| | - Bi-Feng Yuan
- School of Public Health, Wuhan University, Wuhan, 430071, China
| | - John E J Rasko
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Gene and Stem Cell Therapy Program, Centenary Institute, The University of Sydney, Camperdown, 2050, Australia
- Cell and Molecular Therapies, Royal Prince Alfred Hospital, Camperdown, 2050, NSW, Australia
| | - Mark Larance
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia
- Charles Perkins Centre, School of Medical Sciences, University of Sydney, Sydney, 2006, Australia
| | - Dan Ye
- The Molecular and Cell Biology Lab, Key Laboratory of Medical Epigenetics and Metabolism, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - François Fuks
- Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB Cancer Research Center (U-CRC), Jules Bordet Institute, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Justin J-L Wong
- Faculty of Medicine and Health, The University of Sydney, Camperdown, 2050, Australia.
- Epigenetics and RNA Biology Program Centenary Institute, The University of Sydney, Camperdown, 2050, Australia.
- Charles Perkins Centre, School of Medical Sciences, University of Sydney, Sydney, 2006, Australia.
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17
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Wu C, Li L, Tang Q, Liao Q, Chen P, Guo C, Zeng Z, Xiong W. Role of m 6A modifications in immune evasion and immunotherapy. Med Oncol 2024; 41:159. [PMID: 38761335 DOI: 10.1007/s12032-024-02402-9] [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: 03/15/2024] [Accepted: 04/29/2024] [Indexed: 05/20/2024]
Abstract
RNA modification has garnered increasing attention in recent years due to its pivotal role in tumorigenesis and immune surveillance. N6-methyladenosine (m6A) modification is the most prevalent RNA modification, which can affect the expression of RNA by methylating adenylate at the sixth N position to regulate the occurrence and development of tumors. Dysregulation of m6A affects the activation of cancer-promoting pathways, destroys immune cell function, maintains immunosuppressive microenvironment, and promotes tumor cell growth. In this review, we delve into the latest insights into how abnormalities in m6A modification in both tumor and immune cells orchestrate immune evasion through the activation of signaling pathways. Furthermore, we explore how dysregulated m6A modification in tumor cells influences immune cells, thereby regulating tumor immune evasion via interactions within the tumor microenvironment (TME). Lastly, we highlight recent discoveries regarding specific inhibitors of m6A modulators and the encapsulation of m6A-targeting nanomaterials for cancer therapy, discussing their potential applications in immunotherapy.
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Affiliation(s)
- Chunyu Wu
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Lvyuan Li
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Qiling Tang
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Qianjin Liao
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Pan Chen
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Can Guo
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhaoyang Zeng
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China
| | - Wei Xiong
- NHC Key Laboratory of Carcinogenesis and Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, China.
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18
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Ma Q, Ye S, Liu H, Zhao Y, Zhang W. The emerging role and mechanism of HMGA2 in breast cancer. J Cancer Res Clin Oncol 2024; 150:259. [PMID: 38753081 PMCID: PMC11098884 DOI: 10.1007/s00432-024-05785-4] [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: 03/17/2024] [Accepted: 05/06/2024] [Indexed: 05/19/2024]
Abstract
High mobility group AT-hook 2 (HMGA2) is a member of the non-histone chromosomal high mobility group (HMG) protein family, which participate in embryonic development and other biological processes. HMGA2 overexpression is associated with breast cancer (BC) cell growth, proliferation, metastasis, and drug resistance. Furthermore, HMGA2 expression is positively associated with poor prognosis of patients with BC, and inhibiting HMGA2 signaling can stimulate BC cell progression and metastasis. In this review, we focus on HMGA2 expression changes in BC tissues and multiple BC cell lines. Wnt/β-catenin, STAT3, CNN6, and TRAIL-R2 proteins are upstream mediators of HMGA2 that can induce BC invasion and metastasis. Moreover, microRNAs (miRNAs) can suppress BC cell growth, invasion, and metastasis by inhibiting HMGA2 expression. Furthermore, long noncoding RNAs (LncRNAs) and circular RNAs (CircRNAs) mainly regulate HMGA2 mRNA and protein expression levels by sponging miRNAs, thereby promoting BC development. Additionally, certain small molecule inhibitors can suppress BC drug resistance by reducing HMGA2 expression. Finally, we summarize findings demonstrating that HMGA2 siRNA and HMGA2 siRNA-loaded nanoliposomes can suppress BC progression and metastasis.
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Affiliation(s)
- Qing Ma
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University /West China School of Nursing, Sichuan University, Chengdu, China
| | - Sisi Ye
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University /West China School of Nursing, Sichuan University, Chengdu, China
| | - Hong Liu
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University /West China School of Nursing, Sichuan University, Chengdu, China
| | - Yu Zhao
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University /West China School of Nursing, Sichuan University, Chengdu, China
| | - Wei Zhang
- Emergency Department of West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu, China.
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19
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Huang E, Frydman C, Xiao X. Navigating the landscape of epitranscriptomics and host immunity. Genome Res 2024; 34:515-529. [PMID: 38702197 PMCID: PMC11146601 DOI: 10.1101/gr.278412.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2024]
Abstract
RNA modifications, also termed epitranscriptomic marks, encompass chemical alterations to individual nucleotides, including processes such as methylation and editing. These marks contribute to a wide range of biological processes, many of which are related to host immune system defense. The functions of immune-related RNA modifications can be categorized into three main groups: regulation of immunogenic RNAs, control of genes involved in innate immune response, and facilitation of adaptive immunity. Here, we provide an overview of recent research findings that elucidate the contributions of RNA modifications to each of these processes. We also discuss relevant methods for genome-wide identification of RNA modifications and their immunogenic substrates. Finally, we highlight recent advances in cancer immunotherapies that aim to reduce cancer cell viability by targeting the enzymes responsible for RNA modifications. Our presentation of these dynamic research avenues sets the stage for future investigations in this field.
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Affiliation(s)
- Elaine Huang
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, California 90095, USA
| | - Clara Frydman
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, California 90095, USA
| | - Xinshu Xiao
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, California 90095, USA;
- Department of Integrative Biology and Physiology, University of California, Los Angeles, California 90095, USA
- Molecular Biology Interdepartmental Program, University of California, Los Angeles, California 90095, USA
- Molecular Biology Institute, University of California, Los Angeles, California 90095, USA
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20
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Zhang YQ, Li J, Qin Z, Li DM, Ye FZ, Bei SH, Zhang XH, Feng L. METTL5 promotes gastric cancer progression via sphingomyelin metabolism. World J Gastrointest Oncol 2024; 16:1925-1946. [PMID: 38764837 PMCID: PMC11099429 DOI: 10.4251/wjgo.v16.i5.1925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/09/2024] [Accepted: 02/19/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND The treatment of gastric cancer (GC) has caused an enormous social burden worldwide. Accumulating studies have reported that N6-methyladenosine (m6A) is closely related to tumor progression. METTL5 is a m6A methyltransferase that plays a pivotal role in maintaining the metabolic stability of cells. However, its aberrant regulation in GC has not been fully elucidated. AIM To excavate the role of METTL5 in the development of GC. METHODS METTL5 expression and clinicopathological characteristics were analyzed via The Cancer Genome Atlas dataset and further verified via immunohistochemistry, western blotting and real-time quantitative polymerase chain reaction in tissue microarrays and clinical samples. The tumor-promoting effect of METTL5 on HGC-27 and AGS cells was explored in vitro by Cell Counting Kit-8 assays, colony formation assays, scratch healing assays, transwell assays and flow cytometry. The tumor-promoting role of METTL5 in vivo was evaluated in a xenograft tumor model. The EpiQuik m6A RNA Methylation Quantification Kit was used for m6A quantification. Next, liquid chromatography-mass spectrometry was used to evaluate the association between METTL5 and sphingomyelin metabolism, which was confirmed by Enzyme-linked immunosorbent assay and rescue tests. In addition, we investigated whether METTL5 affects the sensitivity of GC cells to cisplatin via colony formation and transwell experiments. RESULTS Our research revealed substantial upregulation of METTL5, which suggested a poor prognosis of GC patients. Increased METTL5 expression indicated distant lymph node metastasis, advanced cancer stage and pathological grade. An increased level of METTL5 correlated with a high degree of m6A methylation. METTL5 markedly promotes the proliferation, migration, and invasion of GC cells in vitro. METTL5 also promotes the growth of GC in animal models. METTL5 knockdown resulted in significant changes in sphingomyelin metabolism, which implies that METTL5 may impact the development of GC via sphingomyelin metabolism. In addition, high METTL5 expression led to cisplatin resistance. CONCLUSION METTL5 was found to be an oncogenic driver of GC and may be a new target for therapy since it facilitates GC carcinogenesis through sphingomyelin metabolism and cisplatin resistance.
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Affiliation(s)
- Ya-Qiong Zhang
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Jian Li
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Zhe Qin
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - De-Ming Li
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Fang-Zhou Ye
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Song-Hua Bei
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Xiao-Hong Zhang
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Li Feng
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
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21
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Pang J, Kuang TD, Yu XY, Novák P, Long Y, Liu M, Deng WQ, Zhu X, Yin K. N6-methyladenosine in myeloid cells: a novel regulatory factor for inflammation-related diseases. J Physiol Biochem 2024; 80:249-260. [PMID: 38158555 DOI: 10.1007/s13105-023-01002-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024]
Abstract
N6-methyladenosine (m6A) is one of the most abundant epitranscriptomic modifications on eukaryotic mRNA. Evidence has highlighted that m6A is altered in response to inflammation-related factors and it is closely associated with various inflammation-related diseases. Multiple subpopulations of myeloid cells, such as macrophages, dendritic cells, and granulocytes, are crucial for the regulating of immune process in inflammation-related diseases. Recent studies have revealed that m6A plays an important regulatory role in the functional of multiple myeloid cells. In this review, we comprehensively summarize the function of m6A modification in myeloid cells from the perspective of myeloid cell production, activation, polarization, and migration. Furthermore, we discuss how m6A-mediated myeloid cell function affects the progression of inflammation-related diseases, including autoimmune diseases, chronic metabolic diseases, and malignant tumors. Finally, we discuss the challenges encountered in the study of m6A in myeloid cells, intended to provide a new direction for the study of the pathogenesis of inflammation-related diseases.
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Affiliation(s)
- Jin Pang
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Tong-Dong Kuang
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Xin-Yuan Yu
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Petr Novák
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China
| | - Yuan Long
- Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Min Liu
- Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Wei-Qian Deng
- Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Xiao Zhu
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi, China.
| | - Kai Yin
- Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.
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22
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Zhang Y, Zhang Y, Song J, Cheng X, Zhou C, Huang S, Zhao W, Zong Z, Yang L. Targeting the "tumor microenvironment": RNA-binding proteins in the spotlight in colorectal cancer therapy. Int Immunopharmacol 2024; 131:111876. [PMID: 38493688 DOI: 10.1016/j.intimp.2024.111876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/04/2024] [Accepted: 03/13/2024] [Indexed: 03/19/2024]
Abstract
Colorectal cancer (CRC) is the third most common cancer and has the second highest mortality rate among cancers. The development of CRC involves both genetic and epigenetic abnormalities, and recent research has focused on exploring the ex-transcriptome, particularly post-transcriptional modifications. RNA-binding proteins (RBPs) are emerging epigenetic regulators that play crucial roles in post-transcriptional events. Dysregulation of RBPs can result in aberrant expression of downstream target genes, thereby affecting the progression of colorectal tumors and the prognosis of patients. Recent studies have shown that RBPs can influence CRC pathogenesis and progression by regulating various components of the tumor microenvironment (TME). Although previous research on RBPs has primarily focused on their direct regulation of colorectal tumor development, their involvement in the remodeling of the TME has not been systematically reported. This review aims to highlight the significant role of RBPs in the intricate interactions within the CRC tumor microenvironment, including tumor immune microenvironment, inflammatory microenvironment, extracellular matrix, tumor vasculature, and CRC cancer stem cells. We also highlight several compounds under investigation for RBP-TME-based treatment of CRC, including small molecule inhibitors such as antisense oligonucleotides (ASOs), siRNAs, agonists, gene manipulation, and tumor vaccines. The insights gained from this review may lead to the development of RBP-based targeted novel therapeutic strategies aimed at modulating the TME, potentially inhibiting the progression and metastasis of CRC.
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Affiliation(s)
- Yiwei Zhang
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Nanchang University, No. 1 MinDe Road, 330006 Nanchang, China; Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, No. 1 Mingde Rd., Nanchang 330006, Jiangxi, China; Queen Mary School, Nanchang University, 330006 Nanchang, China
| | - Yujun Zhang
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Nanchang University, No. 1 MinDe Road, 330006 Nanchang, China; Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, No. 1 Mingde Rd., Nanchang 330006, Jiangxi, China
| | - Jingjing Song
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Nanchang University, No. 1 MinDe Road, 330006 Nanchang, China; Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, No. 1 Mingde Rd., Nanchang 330006, Jiangxi, China; School of Ophthalmology and Optometry of Nanchang University, China
| | - Xifu Cheng
- School of Ophthalmology and Optometry of Nanchang University, China
| | - Chulin Zhou
- The Second Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Shuo Huang
- The Second Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Wentao Zhao
- The 3rd Clinical Department of China Medical University, 10159 Shenyang, China
| | - Zhen Zong
- Department of Gastrointestinal Surgery, the Second Affiliated Hospital of Nanchang University, No. 1 MinDe Road, 330006 Nanchang, China.
| | - Lingling Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, No. 1 Mingde Rd., Nanchang 330006, Jiangxi, China.
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23
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An Y, Duan H. ALKBH5 modulates macrophages polarization in tumor microenvironment of ovarian cancer. J Ovarian Res 2024; 17:84. [PMID: 38637813 PMCID: PMC11025218 DOI: 10.1186/s13048-024-01394-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 03/14/2024] [Indexed: 04/20/2024] Open
Abstract
BACKGROUND Macrophages play an essential role in regulating ovarian cancer immune microenvironment. Studies have shown that m6A methylation could influence immune microenvironment in cancer. In this study, we investigated the roles of m6A demethylase ALKBH5 and m6A recognition protein IGF2BP2 played in regulating macrophages polarization in ovarian cancer. METHODS In this study, we first explored the differentially expressed m6A methylation enzymes in M0 and M2 macrophages according to two independent GEO datasets. TIMER2.0 and GSCA database were used to explore the immune analysis of ALKBH5 and IGF2BP2 in ovarian cancer. K-M plotter and TIMER2.0 databases were used to evaluate the prognostic role of ALKBH5 and IGF2BP2 in ovarian cancer. For CNV mutation analysis of ALKBH5 and IGF2BP2, cBioPortal and GSCA databases were used. For single-cell analysis, sc-TIME and HPA softwares were used to analyze the roles of ALKBH5 and IGF2BP2 played in immune cells in ovarian cancer. To identify the role of ALKBH5 played in macrophage polarization, RT-PCR was used to verify the macrophage polarization related markers in vitro study. The function of ALKBH5 played in ovarian cancer was further analyzed through GO and KEGG analysis. FINDINGS In this study, we found that ALKBH5 and IGF2BP2 were up-regulated in M2 macrophages, which showed closely correlation with immune cells expressions in ovarian cancer, especially with macrophages. Ovarian cancer patients with higher expression of ALKBH5 and IGF2BP2 showed worse prognosis, possibly because of their close correlation with immune response. ALKBH5 also correlated with macrophage phenotypes in single-cell levels analysis. However, the expression level of IGF2BP2 in ovarian cancer immune microenvironment was very low. The results of RT-PCR indicated the potential role of ALKBH5 in M2 polarization of macrophages. INTERPRETATION ALKBH5 participated in regulating macrophage M2 polarization in ovarian cancer immune microenvironment.
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Affiliation(s)
- Yuanyuan An
- Gynecological Mini-Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, 17 Qihelou Street, Beijing, 100006, China
| | - Hua Duan
- Gynecological Mini-Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, 17 Qihelou Street, Beijing, 100006, China.
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24
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Sun M, Yue Y, Wang X, Feng H, Qin Y, Chen M, Wang Y, Yan S. ALKBH5-mediated upregulation of CPT1A promotes macrophage fatty acid metabolism and M2 macrophage polarization, facilitating malignant progression of colorectal cancer. Exp Cell Res 2024; 437:113994. [PMID: 38479704 DOI: 10.1016/j.yexcr.2024.113994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/27/2024] [Accepted: 03/06/2024] [Indexed: 04/06/2024]
Abstract
m6A modification has been studied in tumors, but its role in host anti-tumor immune response and TAMs polarization remains unclear. The fatty acid oxidation (FAO) process of TAMs is also attracting attention. A co-culture model of colorectal cancer (CRC) cells and macrophages was used to simulate the tumor microenvironment. Expression changes of m6A demethylase genes FTO and ALKBH5 were screened. ALKBH5 was further investigated. Gain-of-function experiments were conducted to study ALKBH5's effects on macrophage M2 polarization, CRC cell viability, proliferation, migration, and more. Me-RIP and Actinomycin D assays were performed to study ALKBH5's influence on CPT1A, the FAO rate-limiting enzyme. AMP, ADP, and ATP content detection, OCR measurement, and ECAR measurement were used to explore ALKBH5's impact on macrophage FAO level. Rescue experiments validated ALKBH5's mechanistic role in macrophage M2 polarization and CRC malignant development. In co-culture, CRC cells enhance macrophage FAO and suppress m6A modification in M2 macrophages. ALKBH5 was selected as the gene for further investigation. ALKBH5 mediates CPT1A upregulation by removing m6A modification, promoting M2 macrophage polarization and facilitating CRC development. These findings indicate that ALKBH5 enhances fatty acid metabolism and M2 polarization of macrophages by upregulating CPT1A, thereby promoting CRC development.
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Affiliation(s)
- Mingming Sun
- Department of Anorectal Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China
| | - Yinzi Yue
- Department of General Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China
| | - Xiaopeng Wang
- Department of Anorectal Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China
| | - Huayi Feng
- Department of Anorectal Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China
| | - Yuanyuan Qin
- Department of Pharmacy, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China
| | - Mengyao Chen
- Department of Anorectal Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China
| | - Yahui Wang
- Department of Anorectal Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China
| | - Shuai Yan
- Department of General Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China.
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25
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Fan D, Geng Q, Wang B, Wang X, Xia Y, Yang L, Zhang Q, Deng T, Xu Y, Zhao H, Liu B, Lu C, Gu X, Xiao C. Hypoxia-induced ALKBH5 aggravates synovial aggression and inflammation in rheumatoid arthritis by regulating the m6A modification of CH25H. Clin Immunol 2024; 261:109929. [PMID: 38331303 DOI: 10.1016/j.clim.2024.109929] [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: 12/15/2023] [Revised: 01/20/2024] [Accepted: 02/04/2024] [Indexed: 02/10/2024]
Abstract
Previous studies have shown that epigenetic factors are involved in the occurrence and development of rheumatoid arthritis (RA). However, the role of N6-methyladenosine (m6A) methylation in RA has not been determined. The aim of this study was to investigate the role and regulatory mechanisms of hypoxia-induced expression of the m6A demethylase alkB homolog 5 (ALKBH5) in RA fibroblast-like synoviocytes (FLSs). Synovial tissues were collected from RA and osteoarthritis (OA) patients, and RA FLSs were obtained. ALKBH5 expression in RA FLSs and collagen-induced arthritis (CIA) model rats was determined using quantitative reverse transcription-PCR (qRT-PCR), western blotting and immunohistochemistry (IHC). Using ALKBH5 overexpression and knockdown, we determined the role of ALKBH5 in RA FLS aggression and inflammation. The role of ALKBH5 in RA FLS regulation was explored using m6A-methylated RNA sequencing and methylated RNA immunoprecipitation coupled with quantitative real-time PCR. The expression of ALKBH5 was increased in RA synovial tissues, CIA model rats and RA FLSs, and a hypoxic environment increased the expression of ALKBH5 in FLSs. Increased expression of ALKBH5 promoted the proliferation and migration of RA-FLSs and inflammation. Conversely, decreased ALKBH5 expression inhibited the migration of RA-FLSs and inflammation. Mechanistically, hypoxia-induced ALKBH5 expression promoted FLS aggression and inflammation by regulating CH25H mRNA stability. Our study elucidated the functional roles of ALKBH5 and mRNA m6A methylation in RA and revealed that the HIF1α/2α-ALKBH5-CH25H pathway may be key for FLS aggression and inflammation. This study provides a novel approach for the treatment of RA by targeting the HIF1α/2α-ALKBH5-CH25H pathway.
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Affiliation(s)
- Danping Fan
- China-Japan Friendship Hospital (Department of Emergency, Institute of Clinical Medical Sciences), Beijing 100029, China; Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qishun Geng
- China-Japan Friendship Hospital (Department of Emergency, Institute of Clinical Medical Sciences), Beijing 100029, China; China-Japan Friendship Clinical Medical College, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100029, China
| | - Bailiang Wang
- Department of Orthopaedic Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xing Wang
- China-Japan Friendship Hospital (Department of Emergency, Institute of Clinical Medical Sciences), Beijing 100029, China; China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Ya Xia
- China-Japan Friendship Hospital (Department of Emergency, Institute of Clinical Medical Sciences), Beijing 100029, China; China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Liwen Yang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qian Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Tingting Deng
- China-Japan Friendship Hospital (Department of Emergency, Institute of Clinical Medical Sciences), Beijing 100029, China
| | - Yuan Xu
- Department of TCM Rheumatology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Hongyan Zhao
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Bin Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Xiaofeng Gu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Cheng Xiao
- China-Japan Friendship Hospital (Department of Emergency, Institute of Clinical Medical Sciences), Beijing 100029, China.
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Miao T, Qiu Y, Chen J, Li P, Li H, Zhou W, Shen W. METTL3 knockdown suppresses RA-FLS activation through m 6A-YTHDC2-mediated regulation of AMIGO2. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167112. [PMID: 38432455 DOI: 10.1016/j.bbadis.2024.167112] [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: 10/10/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
The dysregulation of N6-methyladenosine (m6A) on mRNAs is involved in the pathogenesis of rheumatoid arthritis (RA). Methyltransferase-like 3 (METTL3), serving as a central m6A methyltransferase, is highly expressed in macrophages, synovial tissues and RA fibroblast-like synoviocytes (RA-FLS) of RA patients. However, METTL3-mediated m6A modification on target mRNAs and the molecular mechanisms involved in RA-FLS remain poorly defined. Our research demonstrated that METTL3 knockdown decreased the proliferation, migratory and invasive abilities of RA-FLS. Notably, we identified the adhesion molecule with Ig like domain 2 (AMIGO2) as a probable downstream target of both METTL3 and YTH Domain Containing 2 (YTHDC2) in RA-FLS. We revealed that AMIGO2 augmented the activation of RA-FLS and can potentially reverse the phenotypic effects induced by the knockdown of either METTL3 or YTHDC2. Mechanistically, METTL3 knockdown decreased m6A modification in the 5'-untranslated region (5'UTR) of AMIGO2 mRNA, which diminished its interaction with YTHDC2 in RA-FLS. Our findings unveiled that silencing of METTL3 inhibited the proliferation and aggressive behaviors of RA-FLS by downregulating AMIGO2 expression in an m6A-YTHDC2 dependent mechanism, thereby underscoring the pivotal role of the METTL3-m6A-YTHDC2-AMIGO2 axis in modulating RA-FLS phenotypes.
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Affiliation(s)
- Tingyu Miao
- Department of Cell Biology, School of Medicine, Yangzhou University, Yangzhou 215000, China
| | - Yue Qiu
- Department of Cell Biology, School of Medicine, Yangzhou University, Yangzhou 215000, China
| | - Jing Chen
- Department of Cell Biology, School of Medicine, Yangzhou University, Yangzhou 215000, China
| | - Peifen Li
- Department of Cell Biology, School of Medicine, Yangzhou University, Yangzhou 215000, China
| | - Huanan Li
- Department of Cell Biology, School of Medicine, Yangzhou University, Yangzhou 215000, China.
| | - Wei Zhou
- Department of Rheumatology and Immunology, Affiliated Hospital of Yangzhou University, Yangzhou 215000, China.
| | - Weigan Shen
- Department of Cell Biology, School of Medicine, Yangzhou University, Yangzhou 215000, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou 215000, China.
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Mei L, Long J, Wu S, Mei M, Mei D, Qiu H. APOC1 reduced anti-PD-1 immunotherapy of nonsmall cell lung cancer via the transformation of M2 into M1 macrophages by ferroptosis by NRF2/HO-1. Anticancer Drugs 2024; 35:333-343. [PMID: 38241194 DOI: 10.1097/cad.0000000000001573] [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: 01/21/2024]
Abstract
The treatment strategy for nonsmall cell lung cancer (NSCLC) has always been a hot topic of concern, and its treatment strategies are also emerging. This experiment wants to know the effects of apolipoprotein C1 (APOC1) in immunotherapy of NSCLC. APOC1 mRNA and protein expression were upregulated in lung cancer tissue of patients with NSCLC. programmed cell death protein 1 (PD-1) mRNA expression was negatively correlated with PD-1 mRNA expression in patients. The survival rate of APOC1 high expression was lower than that of low expression in patients with NSCLC. APOC1 gene reduced the transformation of M2 into M1 macrophages (TMMM). APOC1 gene promoted cell growth, and the gene reduced ferroptosis of NSCLC. APOC1-induced nuclear factor erythroid 2-related factor 2/heme oxygenase-1 (NRF2/HO-1) signaling pathway. Sh-APOC1 gene reduced cell growth in mice of NSCLC through the inhibition of NRF2/HO-1 signaling pathway. The inhibition of NRF2 reduced the TMMM by APOC1. The activation of NRF2 reduced the TMMM by si-APOC1. In conclusion, APOC1 reduced anti-PD-1 immunotherapy of NSCLC via the TMMM by ferroptosis by NRF2/HO-1, suggesting that targeting this mechanism of APOC1 may be a feasible strategy for anti-PD-1 immunotherapy for NSCLC.
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Affiliation(s)
- Langhua Mei
- Department of Oncology, Fuzhou, Jiangxi First People's Hospital
| | - Jian Long
- Department of Oncology, Fuzhou, Jiangxi First People's Hospital
| | | | - Meie Mei
- Department of Nursing, Jiangxi College Of Traditional Chinese Medicine, Fuzhou City, China
| | | | - Huaping Qiu
- Department of Oncology, Fuzhou, Jiangxi First People's Hospital
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Liu Q, Xu P, Jin M, Wang L, Hu F, Yang Q, Bi R, Xiao H, Jiang L, Ding F. circFTO from M2 macrophage-derived small extracellular vesicles (sEV) enhances NSCLC malignancy by regulation miR-148a-3pPDK4 axis. Cancer Immunol Immunother 2024; 73:91. [PMID: 38554157 PMCID: PMC10981622 DOI: 10.1007/s00262-024-03634-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/13/2024] [Indexed: 04/01/2024]
Abstract
BACKGROUND Accumulation studies found that tumor-associated macrophages (TAMs) are a predominant cell in tumor microenvironment (TME), which function essentially during tumor progression. By releasing bioactive molecules, including circRNA, small extracellular vesicles (sEV) modulate immune cell functions in the TME, thereby affecting non-small cell lung cancer (NSCLC) progression. Nevertheless, biology functions and molecular mechanisms of M2 macrophage-derived sEV circRNAs in NSCLC are unclear. METHODS Cellular experiments were conducted to verify the M2 macrophage-derived sEV (M2-EV) roles in NSCLC. Differential circRNA expression in M0 and M2-EV was validated by RNA sequencing. circFTO expression in NSCLC patients and cells was investigated via real-time PCR and FISH. The biological mechanism of circFTO in NSCLC was validated by experiments. Our team isolated sEV from M2 macrophages (M2Ms) and found that M2-EV treatment promoted NSCLC CP, migration, and glycolysis. RESULTS High-throughput sequencing found that circFTO was highly enriched in M2-EV. FISH and RT-qPCR confirmed that circFTO expression incremented in NSCLC tissues and cell lines. Clinical studies confirmed that high circFTO expression correlated negatively with NSCLC patient survival. Luciferase reporter analysis confirmed that miR-148a-3p and PDK4 were downstream targets of circFTO. circFTO knockdown inhibited NSCLC cell growth and metastasis in in vivo experiments. Downregulating miR-148a-3p or overexpressing PDK4 restored the malignancy of NSCLC, including proliferation, migration, and aerobic glycolysis after circFTO silencing. CONCLUSION The study found that circFTO from M2-EV promoted NSCLC cell progression and glycolysis through miR-148a-3p/PDK4 axis. circFTO is a promising prognostic and diagnostic NSCLC biomarker and has the potential to be a candidate NSCLC therapy target.
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Affiliation(s)
- Qingtao Liu
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China
| | - Pei Xu
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China
| | - Mingming Jin
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai, 201318, People's Republic of China
| | - Lei Wang
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China
| | - Fengqing Hu
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China
| | - Qi Yang
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China
| | - Rui Bi
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China
| | - Haibo Xiao
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China.
| | - Lianyong Jiang
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China.
| | - Fangbao Ding
- Department of Cardiothoracic Surgery, School of Medicine, Xinhua Hospital Affiliated Shanghai Jiao Tong University, Shanghai, 200092, People's Republic of China.
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Sun M, Liu X, Liu Z, Zhang W, Li G, Ren J, Qu X. Single-Atom Catalysts Mediated Bioorthogonal Modulation of N 6-Methyladenosine Methylation for Boosting Cancer Immunotherapy. J Am Chem Soc 2024; 146:8216-8227. [PMID: 38486429 DOI: 10.1021/jacs.3c12726] [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: 03/28/2024]
Abstract
Bioorthogonal reactions provide a powerful tool to manipulate biological processes in their native environment. However, the transition-metal catalysts (TMCs) for bioorthogonal catalysis are limited to low atomic utilization and moderate catalytic efficiency, resulting in unsatisfactory performance in a complex physiological environment. Herein, sulfur-doped Fe single-atom catalysts with atomically dispersed and uniform active sites are fabricated to serve as potent bioorthogonal catalysts (denoted as Fe-SA), which provide a powerful tool for in situ manipulation of cellular biological processes. As a proof of concept, the N6-methyladensoine (m6A) methylation in macrophages is selectively regulated by the mannose-modified Fe-SA nanocatalysts (denoted as Fe-SA@Man NCs) for potent cancer immunotherapy. Particularly, the agonist prodrug of m6A writer METTL3/14 complex protein (pro-MPCH) can be activated in situ by tumor-associated macrophage (TAM)-targeting Fe-SA@Man, which can upregulate METTL3/14 complex protein expression and then reprogram TAMs for tumor killing by hypermethylation of m6A modification. Additionally, we find the NCs exhibit an oxidase (OXD)-like activity that further boosts the upregulation of m6A methylation and the polarization of macrophages via producing reactive oxygen species (ROS). Ultimately, the reprogrammed M1 macrophages can elicit immune responses and inhibit tumor proliferation. Our study not only sheds light on the design of single-atom catalysts for potent bioorthogonal catalysis but also provides new insights into the spatiotemporal modulation of m6A RNA methylation for the treatment of various diseases.
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Affiliation(s)
- Mengyu Sun
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Xuemeng Liu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Zhengwei Liu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
| | - Wenting Zhang
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Guangming Li
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
| | - Jinsong Ren
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
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Yoshinaga M, Takeuchi O. Regulation of inflammatory diseases via the control of mRNA decay. Inflamm Regen 2024; 44:14. [PMID: 38491500 PMCID: PMC10941436 DOI: 10.1186/s41232-024-00326-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 03/02/2024] [Indexed: 03/18/2024] Open
Abstract
Inflammation orchestrates a finely balanced process crucial for microorganism elimination and tissue injury protection. A multitude of immune and non-immune cells, alongside various proinflammatory cytokines and chemokines, collectively regulate this response. Central to this regulation is post-transcriptional control, governing gene expression at the mRNA level. RNA-binding proteins such as tristetraprolin, Roquin, and the Regnase family, along with RNA modifications, intricately dictate the mRNA decay of pivotal mediators and regulators in the inflammatory response. Dysregulated activity of these factors has been implicated in numerous human inflammatory diseases, underscoring the significance of post-transcriptional regulation. The increasing focus on targeting these mechanisms presents a promising therapeutic strategy for inflammatory and autoimmune diseases. This review offers an extensive overview of post-transcriptional regulation mechanisms during inflammatory responses, delving into recent advancements, their implications in human diseases, and the strides made in therapeutic exploitation.
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Affiliation(s)
- Masanori Yoshinaga
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan.
| | - Osamu Takeuchi
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan.
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31
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Xu X, Zhuang X, Yu H, Li P, Li X, Lin H, Teoh JP, Chen Y, Yang Y, Cheng Y, Chen W, Fu X. FSH induces EMT in ovarian cancer via ALKBH5-regulated Snail m6A demethylation. Theranostics 2024; 14:2151-2166. [PMID: 38505602 PMCID: PMC10945345 DOI: 10.7150/thno.94161] [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: 01/11/2024] [Accepted: 02/26/2024] [Indexed: 03/21/2024] Open
Abstract
Background: The therapeutic benefits of targeting follicle-stimulating hormone (FSH) receptor in treatment of ovarian cancer are significant, whereas the role of FSH in ovarian cancer progresses and the underlying mechanism remains to be developed. Methods: Tissue microarray of human ovarian cancer, tumor xenograft mouse model, and in vitro cell culture were used to investigate the role of FSH in ovarian carcinogenesis. siRNA, lentivirus and inhibitors were used to trigger the inactivation of genes, and plasmids were used to increase transcription of genes. Specifically, pathological characteristic was assessed by histology and immunohistochemistry (IHC), while signaling pathway was studied using western blot, quantitative RT-PCR, and immunofluorescence. Results: Histology and IHC of human normal ovarian and tumor tissue confirmed the association between FSH and Snail in ovarian cancer metastasis. Moreover, in epithelial ovarian cancer cells and xenograft mice, FSH was showed to promote epithelial mesenchymal transition (EMT) progress and metastasis of ovarian cancer via prolonging the half-life of Snail mRNA in a N6-methyladenine methylation (m6A) dependent manner, which was mechanistically through the CREB/ALKBH5 signaling pathway. Conclusions: These findings indicated that FSH induces EMT progression and ovarian cancer metastasis via CREB/ALKBH5/Snail pathway. Thus, this study provided new insight into the therapeutic strategy of ovarian cancer patients with high level of FSH.
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Affiliation(s)
- Xingyan Xu
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Xuefen Zhuang
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Haowei Yu
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Ping Li
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Xiaosa Li
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Huiping Lin
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Jian-peng Teoh
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yiwen Chen
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yuanlan Yang
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yang Cheng
- Department of Gynecology and Obstetrics, Guangzhou First People's Hospital, Guangzhou, China
| | - Weiyu Chen
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Xiaodong Fu
- Guangzhou Institute of Cardiovascular Disease, the Second Affiliated Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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32
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Hashemi M, Daneii P, Zandieh MA, Raesi R, Zahmatkesh N, Bayat M, Abuelrub A, Khazaei Koohpar Z, Aref AR, Zarrabi A, Rashidi M, Salimimoghadam S, Entezari M, Taheriazam A, Khorrami R. Non-coding RNA-Mediated N6-Methyladenosine (m 6A) deposition: A pivotal regulator of cancer, impacting key signaling pathways in carcinogenesis and therapy response. Noncoding RNA Res 2024; 9:84-104. [PMID: 38075202 PMCID: PMC10700483 DOI: 10.1016/j.ncrna.2023.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/23/2023] [Accepted: 11/08/2023] [Indexed: 06/20/2024] Open
Abstract
The emergence of RNA modifications has recently been considered as critical post-transcriptional regulations which governed gene expression. N6-methyladenosine (m6A) modification is the most abundant type of RNA modification which is mediated by three distinct classes of proteins called m6A writers, readers, and erasers. Accumulating evidence has been made in understanding the role of m6A modification of non-coding RNAs (ncRNAs) in cancer. Importantly, aberrant expression of ncRNAs and m6A regulators has been elucidated in various cancers. As the key role of ncRNAs in regulation of cancer hallmarks is well accepted now, it could be accepted that m6A modification of ncRNAs could affect cancer progression. The present review intended to discuss the latest knowledge and importance of m6A epigenetic regulation of ncRNAs including mircoRNAs, long non-coding RNAs, and circular RNAs, and their interaction in the context of cancer. Moreover, the current insight into the underlying mechanisms of therapy resistance and also immune response and escape mediated by m6A regulators and ncRNAs are discussed.
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Affiliation(s)
- Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Pouria Daneii
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Arad Zandieh
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Rasoul Raesi
- Department of Health Services Management, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical-Surgical Nursing, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Neda Zahmatkesh
- Department of Genetics, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | - Mehrsa Bayat
- Department of Health Sciences, Bahcesehir University, Istanbul, Turkey
| | - Anwar Abuelrub
- Neuroscience Laboratory, Health Sciences Institute, Bahcesehir University, Istanbul, Turkey
| | - Zeinab Khazaei Koohpar
- Department of Cell and Molecular Biology, Faculty of Biological Sciences, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul, 34396, Turkey
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Maliheh Entezari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ramin Khorrami
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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Esteva-Socias M, Aguilo F. METTL3 as a master regulator of translation in cancer: mechanisms and implications. NAR Cancer 2024; 6:zcae009. [PMID: 38444581 PMCID: PMC10914372 DOI: 10.1093/narcan/zcae009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/18/2024] [Accepted: 02/21/2024] [Indexed: 03/07/2024] Open
Abstract
Translational regulation is an important step in the control of gene expression. In cancer cells, the orchestration of both global control of protein synthesis and selective translation of specific mRNAs promote tumor cell survival, angiogenesis, transformation, invasion and metastasis. N6-methyladenosine (m6A), the most prevalent mRNA modification in higher eukaryotes, impacts protein translation. Over the past decade, the development of m6A mapping tools has facilitated comprehensive functional investigations, revealing the involvement of this chemical mark, together with its writer METTL3, in promoting the translation of both oncogenes and tumor suppressor transcripts, with the impact being context-dependent. This review aims to consolidate our current understanding of how m6A and METTL3 shape translation regulation in the realm of cancer biology. In addition, it delves into the role of cytoplasmic METTL3 in protein synthesis, operating independently of its catalytic activity. Ultimately, our goal is to provide critical insights into the interplay between m6A, METTL3 and translational regulation in cancer, offering a deeper comprehension of the mechanisms sustaining tumorigenesis.
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Affiliation(s)
- Margalida Esteva-Socias
- Department of Molecular Biology, Umeå University, SE-901 85Umeå, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, SE-901 85Umeå, Sweden
| | - Francesca Aguilo
- Department of Molecular Biology, Umeå University, SE-901 85Umeå, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, SE-901 85Umeå, Sweden
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Yu Y, Chen H, Ouyang W, Zeng J, Huang H, Mao L, Jia X, Guan T, Wang Z, Lin R, Huang Z, Yin H, Yao H, Zhang K. Unraveling the role of M1 macrophage and CXCL9 in predicting immune checkpoint inhibitor efficacy through multicohort analysis and single-cell RNA sequencing. MedComm (Beijing) 2024; 5:e471. [PMID: 38434763 PMCID: PMC10906808 DOI: 10.1002/mco2.471] [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: 07/31/2023] [Revised: 12/23/2023] [Accepted: 12/24/2023] [Indexed: 03/05/2024] Open
Abstract
The exact function of M1 macrophages and CXCL9 in forecasting the effectiveness of immune checkpoint inhibitors (ICIs) is still not thoroughly investigated. We investigated the potential of M1 macrophage and C-X-C Motif Chemokine Ligand 9 (CXCL9) as predictive markers for ICI efficacy, employing a comprehensive approach integrating multicohort analysis and single-cell RNA sequencing. A significant correlation between high M1 macrophage and improved overall survival (OS) and objective response rate (ORR) was found. M1 macrophage expression was most pronounced in the immune-inflamed phenotype, aligning with increased expression of immune checkpoints. Furthermore, CXCL9 was identified as a key marker gene that positively correlated with M1 macrophage and response to ICIs, while also exhibiting associations with immune-related pathways and immune cell infiltration. Additionally, through exploring RNA epigenetic modifications, we identified Apolipoprotein B MRNA Editing Enzyme Catalytic Subunit 3G (APOBEC3G) as linked to ICI response, with high expression correlating with improved OS and immune-related pathways. Moreover, a novel model based on M1 macrophage, CXCL9, and APOBEC3G-related genes was developed using multi-level attention graph neural network, which showed promising predictive ability for ORR. This study illuminates the pivotal contributions of M1 macrophages and CXCL9 in shaping an immune-active microenvironment, correlating with enhanced ICI efficacy. The combination of M1 macrophage, CXCL9, and APOBEC3G provides a novel model for predicting clinical outcomes of ICI therapy, facilitating personalized immunotherapy.
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Affiliation(s)
- Yunfang Yu
- Faculty of MedicineMacau University of Science and TechnologyMacaoP. R. China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationGuangdong‐Hong Kong Joint Laboratory for RNA MedicineDepartment of Medical OncologyBreast Tumor CentrePhase I Clinical Trial CentreSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouP. R. China
| | - Haizhu Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationGuangdong‐Hong Kong Joint Laboratory for RNA MedicineDepartment of Medical OncologyBreast Tumor CentrePhase I Clinical Trial CentreSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouP. R. China
| | - Wenhao Ouyang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationGuangdong‐Hong Kong Joint Laboratory for RNA MedicineDepartment of Medical OncologyBreast Tumor CentrePhase I Clinical Trial CentreSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouP. R. China
| | - Jin Zeng
- Faculty of Sustainable DevelopmentMacau University of Science and TechnologyMacauP. R. China
- Guangzhou National LaboratoryGuangzhouP. R. China
| | - Hong Huang
- School of MedicineGuilin Medical UniversityGuilinP. R. China
| | - Luhui Mao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationGuangdong‐Hong Kong Joint Laboratory for RNA MedicineDepartment of Medical OncologyBreast Tumor CentrePhase I Clinical Trial CentreSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouP. R. China
| | - Xueyuan Jia
- Faculty of MedicineMacau University of Science and TechnologyMacaoP. R. China
| | - Taihua Guan
- Guangzhou National LaboratoryGuangzhouP. R. China
| | - Zehua Wang
- Division of Science and TechnologyBeijing Normal University‐Hong Kong Baptist University United International CollegeZhuhaiP. R. China
| | - Ruichong Lin
- Faculty of Innovation EngineeringMacau University of Science and TechnologyMacaoP. R. China
| | - Zhenjun Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationGuangdong‐Hong Kong Joint Laboratory for RNA MedicineDepartment of Medical OncologyBreast Tumor CentrePhase I Clinical Trial CentreSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouP. R. China
| | - Hanqi Yin
- South China Institute of BiomedineGuangzhouChina
| | - Herui Yao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationGuangdong‐Hong Kong Joint Laboratory for RNA MedicineDepartment of Medical OncologyBreast Tumor CentrePhase I Clinical Trial CentreSun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouP. R. China
| | - Kang Zhang
- Faculty of MedicineMacau University of Science and TechnologyMacaoP. R. China
- Guangzhou National LaboratoryGuangzhouP. R. China
- Zhuhai International Eve CenterZhuhai People's Hospital and the First Affiliated Hospital of Faculty of MedicineMacau University of Science and Technology and University HospitalZhuhaiChina
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Sheng B, Pan S, Ye M, Liu H, Zhang J, Zhao B, Ji H, Zhu X. Single-cell RNA sequencing of cervical exfoliated cells reveals potential biomarkers and cellular pathogenesis in cervical carcinogenesis. Cell Death Dis 2024; 15:130. [PMID: 38346944 PMCID: PMC10861450 DOI: 10.1038/s41419-024-06522-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/15/2024]
Abstract
Cervical cancer (CC) is a common gynecological malignancy. Despite the current screening methods have been proved effectively and significantly decreased CC morbidity and mortality, deficiencies still exist. Single-cell RNA sequencing (scRNA-seq) approach can identify the complex and rare cell populations at single-cell resolution. By scRNA-seq, the heterogeneity of tumor microenvironment across cervical carcinogenesis has been mapped and described. Whether these alterations could be detected and applied to CC screening is unclear. Herein, we performed scRNA-seq of 56,173 cervical exfoliated cells from 15 samples, including normal cervix, low-grade squamous intraepithelial lesion (LSIL), high-grade squamous intraepithelial lesion (HSIL), and malignancy. The present study delineated the alteration of immune and epithelial cells derived during the cervical lesion progression. A subset of lipid-associated macrophage was identified as a tumor-promoting element and could serve as a biomarker for predicting the progression of LSIL into HSIL, which was then verified by immunofluorescence. Furthermore, cell-cell communication analysis indicated the SPP1-CD44 axis might exhibit a protumor interaction between epithelial cell and macrophage. In this study, we investigated the cervical multicellular ecosystem in cervical carcinogenesis and identified potential biomarkers for early detection.
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Affiliation(s)
- Bo Sheng
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Shuya Pan
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Miaomiao Ye
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Hejing Liu
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Jiamin Zhang
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Bo Zhao
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Huihui Ji
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China.
| | - Xueqiong Zhu
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China.
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Zhang Y, Du C, Wang W, Qiao W, Li Y, Zhang Y, Sheng S, Zhou X, Zhang L, Fan H, Yu Y, Chen Y, Liao Y, Chen S, Chang Y. Glucocorticoids increase adiposity by stimulating Krüppel-like factor 9 expression in macrophages. Nat Commun 2024; 15:1190. [PMID: 38331933 PMCID: PMC10853261 DOI: 10.1038/s41467-024-45477-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 01/25/2024] [Indexed: 02/10/2024] Open
Abstract
The mechanisms underlying glucocorticoid (GC)-induced obesity are poorly understood. Macrophages are the primary targets by which GCs exert pharmacological effects and perform critical functions in adipose tissue homeostasis. Here, we show that macrophages are essential for GC-induced obesity. Dexamethasone (Dex) strongly induced Krüppel-like factor 9 (Klf9) expression in macrophages. Similar to Dex, lentivirus-mediated Klf9 overexpression inhibits M1 and M2a markers expression, causing macrophage deactivation. Furthermore, the myeloid-specific Klf9 transgene promotes obesity. Conversely, myeloid-specific Klf9-knockout (mKlf9KO) mice are lean. Moreover, myeloid Klf9 knockout largely blocks obesity induced by chronic GC treatment. Mechanistically, GC-inducible KLF9 recruits the SIN3A/HDAC complex to the promoter regions of Il6, Ptgs2, Il10, Arg1, and Chil3 to inhibit their expression, subsequently reducing thermogenesis and increasing lipid accumulation by inhibiting STAT3 signaling in adipocytes. Thus, KLF9 in macrophages integrates the beneficial anti-inflammatory and adverse metabolic effects of GCs and represents a potential target for therapeutic interventions.
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Affiliation(s)
- Yinliang Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China
| | - Chunyuan Du
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China
| | - Wei Wang
- Key Laboratory of Biotechnology of Hubei Province, Key Laboratory of Biotechnology of Chinese Traditional Medicine, National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, Hubei University, Wuhan, China
| | - Wei Qiao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China
| | - Yuhui Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China
| | - Yujie Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China
| | - Sufang Sheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China
| | - Xuenan Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China
| | - Lei Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China
| | - Heng Fan
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Ningxia, China
| | - Ying Yu
- Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Yong Chen
- Key Laboratory of Biotechnology of Hubei Province, Key Laboratory of Biotechnology of Chinese Traditional Medicine, National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, Hubei University, Wuhan, China
| | - Yunfei Liao
- Department of Endocrinology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Shihong Chen
- Department of Endocrinology, The Second Hospital of Shandong University, Jinan, China.
| | - Yongsheng Chang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Key Laboratory of Cellular Homeostasis and Disease, Tianjin Medical University, Tianjin, China.
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Kuang Y, Li R, Wang J, Xu S, Qiu Q, Lin S, Liu D, Shen C, Liu Y, Xu M, Lin W, Zhang S, Liang L, Xu H, Xiao Y. ALKBH5-Mediated RNA m 6 A Methylation Regulates the Migration, Invasion, and Proliferation of Rheumatoid Fibroblast-Like Synoviocytes. Arthritis Rheumatol 2024; 76:192-205. [PMID: 37584615 DOI: 10.1002/art.42676] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 06/27/2023] [Accepted: 08/09/2023] [Indexed: 08/17/2023]
Abstract
OBJECTIVE Fibroblast-like synoviocytes (FLSs) are critical for promoting joint damage in rheumatoid arthritis (RA). N6 -methyladenosine (m6 A) modification plays key roles in various diseases, but its role in the pathogenesis of RA is largely unknown. Here, we investigate increased demethylase ALKBH5 promotion of proliferation, migration, and invasion of RA FLSs via regulating JARID2 expression. METHODS ALKBH5 expression in FLSs was evaluated using real-time quantitative polymerase chain reaction (RT-qPCR) and Western blot. 5-ethynyl-2'-deoxyuridine, scratch wound healing, and transwell assays were implemented to determine the role of ALKBH5 on RA FLS proliferation, mobility, and migration. Then, m6 A sequencing combined with RNA sequencing was performed to identify the potential targets of ALKBH5. RNA immunoprecipitation and RNA pulldown were then used to validate the interaction between the protein and messenger RNA (mRNA). Collagen-induced arthritis (CIA) and delayed-type hypersensitivity arthritis (DTHA) models were further established to assess the therapeutic potency of ALKBH5 in vivo. RESULTS We demonstrated that ALKBH5 expression was increased in FLSs and synovium from RA. Functionally, ALKBH5 knockdown inhibited the proliferation, migration, and invasion of RA FLSs, whereas overexpression of ALKBH5 displayed the opposite effect. Mechanistically, ALKBH5 mediated m6 A modification in the JARID2 mRNA and enhanced its mRNA stability in cooperation with IGF2BP3. Intriguingly, the severity of arthritis was attenuated in mice with DTHA and ALKBH5 knockout or rats with CIA and intra-articular injection of ALKBH5 short hairpin RNA. CONCLUSION Our findings suggest that ALKBH5-mediated m6 A modification is crucial for synovial hyperplasia and invasion in RA. ALKBH5 might be a potential therapeutic target for RA and even for dysregulated fibroblasts in a wide range of diseases.
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Affiliation(s)
- Yu Kuang
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Ruiru Li
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jingnan Wang
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Siqi Xu
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Qian Qiu
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Shuibin Lin
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Di Liu
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Chuyu Shen
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yingli Liu
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Meilin Xu
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Wei Lin
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Shuoyang Zhang
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Liuqin Liang
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Hanshi Xu
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Youjun Xiao
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
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Wang Z, Chen C, Shu J, Ai J, Liu Y, Cao H, Jia Y, Qin Y. Single-cell N 6-methyladenosine-related genes function within the tumor microenvironment to affect the prognosis and treatment sensitivity in patients with gastric cancer. Cancer Cell Int 2024; 24:44. [PMID: 38273348 PMCID: PMC10811812 DOI: 10.1186/s12935-024-03227-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/12/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Gastric cancer (GC) ranks fifth for morbidity and third for mortality worldwide. The N6-methyladenosine (m6A) mRNA methylation is crucial in cancer biology and progression. However, the relationship between m6A methylation and gastric tumor microenvironment (TME) remains to be elucidated. METHODS We combined single-cell and bulk transcriptome analyses to explore the roles of m6A-related genes (MRG) in gastric TME. RESULTS Nine TME cell subtypes were identified from 23 samples. Fibroblasts were further grouped into four subclusters according to different cell markers. M6A-mediated fibroblasts may guide extensive intracellular communications in the gastric TME. The m6A-related genes score (MRGs) was output based on six differentially expressed single-cell m6A-related genes (SCMRDEGs), including GHRL, COL4A1, CAV1, GJA1, TIMP1, and IGFBP3. The protein expression level was assessed by immunohistochemistry. We identified the prognostic value of MRGs and constructed a nomogram model to predict GC patients' overall survival. MRGs may affect treatment sensitivity in GC patients. CONCLUSION Our study visualized the cellular heterogeneity of TME at the single-cell level, revealed the association between m6A mRNA modification and intracellular communication, clarified MRGs as an independent risk factor of prognosis, and provided a reference for follow-up treatment.
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Affiliation(s)
- Zehua Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Chen Chen
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jiao Shu
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jiaoyu Ai
- The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Yihan Liu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Haoyue Cao
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yongxu Jia
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Yanru Qin
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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Su W, Che L, Liao W, Huang H. The RNA m 6A writer METTL3 in tumor microenvironment: emerging roles and therapeutic implications. Front Immunol 2024; 15:1335774. [PMID: 38322265 PMCID: PMC10845340 DOI: 10.3389/fimmu.2024.1335774] [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: 11/09/2023] [Accepted: 01/04/2024] [Indexed: 02/08/2024] Open
Abstract
The tumor microenvironment (TME) is a heterogeneous ecosystem comprising cancer cells, immune cells, stromal cells, and various non-cellular components, all of which play critical roles in controlling tumor progression and response to immunotherapies. Methyltransferase-like 3 (METTL3), the core component of N 6-methyladenosine (m6A) writer, is frequently associated with abnormalities in the m6A epitranscriptome in different cancer types, impacting both cancer cells and the surrounding TME. While the impact of METTL3 on cancer cells has been extensively reviewed, its roles in TME and anti-cancer immunity have not been comprehensively summarized. This review aims to systematically summarize the functions of METTL3 in TME, particularly its effects on tumor-infiltrating immune cells. We also elaborate on the underlying m6A-dependent mechanism. Additionally, we discuss ongoing endeavors towards developing METTL3 inhibitors, as well as the potential of targeting METTL3 to bolster the efficacy of immunotherapy.
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Affiliation(s)
- Weiqi Su
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Lin Che
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wenting Liao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Huilin Huang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, China
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Wu Q, Fu X, He X, Liu J, Li Y, Ou C. Experimental prognostic model integrating N6-methyladenosine-related programmed cell death genes in colorectal cancer. iScience 2024; 27:108720. [PMID: 38299031 PMCID: PMC10829884 DOI: 10.1016/j.isci.2023.108720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/30/2023] [Accepted: 12/11/2023] [Indexed: 02/02/2024] Open
Abstract
Colorectal cancer (CRC) intricacies, involving dysregulated cellular processes and programmed cell death (PCD), are explored in the context of N6-methyladenosine (m6A) RNA modification. Utilizing the TCGA-COADREAD/CRC cohort, 854 m6A-related PCD genes are identified, forming the basis for a robust 10-gene risk model (CDRS) established through LASSO Cox regression. qPCR experiments using CRC cell lines and fresh tissues was performed for validation. The CDRS served as an independent risk factor for CRC and showed significant associations with clinical features, molecular subtypes, and overall survival in multiple datasets. Moreover, CDRS surpasses other predictors, unveiling distinct genomic profiles, pathway activations, and associations with the tumor microenvironment. Notably, CDRS exhibits predictive potential for drug sensitivity, presenting a novel paradigm for CRC risk stratification and personalized treatment avenues.
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Affiliation(s)
- Qihui Wu
- Department of Gynecology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xiaodan Fu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xiaoyun He
- Departments of Ultrasound Imaging, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jiaxin Liu
- Department of Pathology, School of Basic Medical Sciences, Central South University, Changsha 410078, China
| | - Yimin Li
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Chunlin Ou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008, China
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Shan Y, Chen W, Li Y. The role of m 6A RNA methylation in autoimmune diseases: Novel therapeutic opportunities. Genes Dis 2024; 11:252-267. [PMID: 37588214 PMCID: PMC10425809 DOI: 10.1016/j.gendis.2023.02.013] [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: 06/07/2022] [Revised: 08/02/2022] [Accepted: 02/08/2023] [Indexed: 03/29/2023] Open
Abstract
N6-methyladenosine (m6A) modifications, as one of the most common forms of internal RNA chemical modifications in eukaryotic cells, have gained increasing attention in recent years. The m6A RNA modifications exert various crucial roles in various biological processes, such as embryonic development, neurogenesis, circadian rhythms, and tumorigenesis. Recent advances have highlighted that m6A RNA modification plays an important role in immune response, especially in the initiation and progression of autoimmune diseases. In this review, we summarized the regulatory mechanisms of m6A methylation and its biological functions in the immune system and mainly focused on recent progress in research on the potential role of m6A RNA methylation in the pathogenesis of autoimmune diseases, thus providing possible biomarkers and potential targets for the prevention and treatment of autoimmune diseases.
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Affiliation(s)
- Yunan Shan
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250013, China
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Neuroimmunology, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, Shandong 250013, China
| | - Wei Chen
- Department of Gastroenterology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Yanbin Li
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Neuroimmunology, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Jinan, Shandong 250013, China
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Yang X, Zhao Y, Wei Q, Zhu X, Wang L, Zhang W, Liu X, Kuai J, Wang F, Wei W. GRK2 inhibits Flt-1 + macrophage infiltration and its proangiogenic properties in rheumatoid arthritis. Acta Pharm Sin B 2024; 14:241-255. [PMID: 38261818 PMCID: PMC10792976 DOI: 10.1016/j.apsb.2023.09.013] [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: 06/05/2023] [Revised: 09/04/2023] [Accepted: 09/15/2023] [Indexed: 01/25/2024] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease with a complex etiology. Monocyte-derived macrophages (MDMs) infiltration are associated with RA severity. We have reported the deletion of G-protein-coupled receptor kinase 2 (GRK2) reprograms macrophages toward an anti-inflammatory phenotype by recovering G-protein-coupled receptor signaling. However, as more GRK2-interacting proteins were discovered, the GRK2 interactome mechanisms in RA have been understudied. Thus, in the collagen-induced arthritis mouse model, we performed genetic GRK2 deletion using GRK2f/fLyz2-Cre+/- mice. Synovial inflammation and M1 polarization were improved in GRK2f/fLyz2-Cre+/- mice. Supporting experiments with RNA-seq and dual-luciferase reporter assays identified peroxisome proliferator-activated receptor γ (PPARγ) as a new GRK2-interacting protein. We further confirmed that fms-related tyrosine kinase 1 (Flt-1), which promoted macrophage migration to induce angiogenesis, was inhibited by GRK2-PPARγ signaling. Mechanistically, excess GRK2 membrane recruitment in CIA MDMs reduced the activation of PPARγ ligand-binding domain and enhanced Flt-1 transcription. Furthermore, the treatment of mice with GRK2 activity inhibitor resulted in significantly diminished CIA pathology, Flt-1+ macrophages induced-synovial inflammation, and angiogenesis. Altogether, we anticipate to facilitate the elucidation of previously unappreciated details of GRK2-specific intracellular signaling. Targeting GRK2 activity is a viable strategy to inhibit MDMs infiltration, affording a distinct way to control joint inflammation and angiogenesis of RA.
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Affiliation(s)
- Xuezhi Yang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Yingjie Zhao
- Department of Clinical Pharmacology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Qi Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Xuemin Zhu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Luping Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Wankang Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Xiaoyi Liu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Jiajie Kuai
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Fengling Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
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Yoshinaga M, Takeuchi O. RNA Metabolism Governs Immune Function and Response. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1444:145-161. [PMID: 38467978 DOI: 10.1007/978-981-99-9781-7_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Inflammation is a complex process that protects our body from various insults such as infection, injury, and stress. Proper inflammation is beneficial to eliminate the insults and maintain organ homeostasis, however, it can become detrimental if uncontrolled. To tightly regulate inflammation, post-transcriptional mechanisms governing RNA metabolism play a crucial role in monitoring the expression of immune-related genes, such as tumor necrosis factor (TNF) and interleukin-6 (IL-6). These mechanisms involve the coordinated action of various RNA-binding proteins (RBPs), including the Regnase family, Roquin, and RNA methyltransferases, which are responsible for mRNA decay and/or translation regulation. The collaborative efforts of these RBPs are essential in preventing aberrant immune response activation and consequently safeguarding against inflammatory and autoimmune diseases. This review provides an overview of recent advancements in our understanding of post-transcriptional regulation within the immune system and explores the specific roles of individual RBPs in RNA metabolism and regulation.
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Affiliation(s)
- Masanori Yoshinaga
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Osamu Takeuchi
- Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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Zhao M, Li P, Qiao D, Hua S, Yue Q, Dai Y, Huang Y, Jiang J, Yin H, Li M, Ding Y, Yang X, Ma Y, Ding K, Zeng L. N6-methyladenosine modification of TSC1 mRNA contributes to macrophage polarization regulated by Coptisine in DSS-induced ulcerative colitis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 122:155153. [PMID: 38014839 DOI: 10.1016/j.phymed.2023.155153] [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: 05/17/2023] [Revised: 09/29/2023] [Accepted: 10/14/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND AND PURPOSE Ulcerative colitis (UC) is a global refractory disease characterized by recurrent episodes. Coptisine (COP) is an isoquinoline alkaloid derived from Coptis chinensis, which has strong anti-inflammatory activity. Macrophages are key cells mediating inflammation. It is reported that N6-methyladenosine (m6A) RNA methylation regulates the polarization of macrophages and affects the development of inflammation. COP exerts an exact inhibitory effect on macrophages inflammation, while the specific mechanism remains unclear. The current study is designed to conduct a further investigation into the protective mechanism of COP against dextran sulfate sodium (DSS) -induced UC in mice. METHODS Using a DSS-induced UC model, we evaluated the pharmacodynamic effect of COP on UC mice, and verified the regulatory mechanism of COP on macrophage polarization in vivo and in vitro. The methylation level of m6A was detected by methylated RNA immunoprecipitation sequence (MeRIP) -qPCR, and the expression level of Methyltransferase Like (METTL)14 was determined by western blotting. Then METTL14 was knocked down in macrophages, and its effects on Tuberous sclerosis complex (TSC1) mRNA and m6A methylation regulation were observed. RESULTS COP improved the symptoms, alleviated tissue damage and reduced inflammation levels in DSS-induced UC mice. COP increased TSC1 expression, inhibited the Mitogen-activated protein kinase (MEK) / Extracellular regulated protein kinases (ERK) signaling pathway, and thus inhibited macrophage M1 polarization, whereas COP increased CCAAT Enhancer Binding Protein beta (c/EBPβ) expression, and thus promoted macrophage M2 polarization. COP also significantly increased the expression of METTL14, which enhanced m6A methylation and ultimately improved the stability of TSC1 mRNA. CONCLUSIONS COP was effective in treating UC and could regulate the polarization of macrophages. The possible mechanisms might be related to m6A modification-mediated TSC1.
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Affiliation(s)
- Min Zhao
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing 210023, China
| | - Peiyi Li
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; The First School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Dan Qiao
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Siyi Hua
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Qiyu Yue
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; The First School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yuxin Dai
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; The First School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yuqiu Huang
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jiaxin Jiang
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Huiting Yin
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Meng Li
- Nanjing hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210022, China
| | - Yang Ding
- Nanjing hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210022, China
| | - Xu Yang
- Nanjing hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210022, China
| | - Yong Ma
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Kang Ding
- Nanjing hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210022, China.
| | - Li Zeng
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, Macau, China; Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing 210023, China; The First School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Gu J, Cao H, Chen X, Zhang XD, Thorne RF, Liu X. RNA m6A modifications regulate crosstalk between tumor metabolism and immunity. WILEY INTERDISCIPLINARY REVIEWS. RNA 2024; 15:e1829. [PMID: 38114887 DOI: 10.1002/wrna.1829] [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: 05/10/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 12/21/2023]
Abstract
In recent years, m6A modifications in RNA transcripts have arisen as a hot topic in cancer research. Indeed, a number of independent studies have elaborated that the m6A modification impacts the behavior of tumor cells and tumor-infiltrating immune cells, altering tumor cell metabolism along with the differentiation and functional activity of immune cells. This review elaborates on the links between RNA m6A modifications, tumor cell metabolism, and immune cell behavior, discussing this topic from the viewpoint of reciprocal regulation through "RNA m6A-tumor cell metabolism-immune cell behavior" and "RNA m6A-immune cell behavior-tumor cell metabolism" axes. In addition, we discuss the various factors affecting RNA m6A modifications in the tumor microenvironment, particularly the effects of hypoxia associated with cancer cell metabolism along with immune cell-secreted cytokines. Our analysis proposes the conclusion that RNA m6A modifications support widespread interactions between tumor metabolism and tumor immunity. With the current viewpoint that long-term cancer control must tackle cancer cell malignant behavior while strengthening anti-tumor immunity, the recognition of RNA m6A modifications as a key factor provides a new direction for the targeted therapy of tumors. This article is categorized under: RNA Processing > RNA Editing and Modification RNA in Disease and Development > RNA in Disease RNA Interactions with Proteins and Other Molecules > Protein-RNA Interactions: Functional Implications.
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Affiliation(s)
- Jinghua Gu
- School of Life Sciences, Anhui Medical University, Hefei, China
- The First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Huake Cao
- School of Life Sciences, Anhui Medical University, Hefei, China
- The First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Xiaoli Chen
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
| | - Xu Dong Zhang
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Rick F Thorne
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Xiaoying Liu
- School of Life Sciences, Anhui Medical University, Hefei, China
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
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Gan Z, Zhao M, Xia Y, Yan Y, Ren W. Carbon metabolism in the regulation of macrophage functions. Trends Endocrinol Metab 2024; 35:62-73. [PMID: 37778898 DOI: 10.1016/j.tem.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 10/03/2023]
Abstract
Carbon metabolism, including one-carbon (1C) metabolism and central carbon metabolism (CCM), provides energy for the cell and generates metabolites with signaling activities. The regulation of macrophage polarization involves complex signals and includes an epigenetic level. Epigenetic modifications through changes in carbon metabolism allow macrophages to respond in a timely manner to their environment and adapt to metabolic demands during macrophage polarization. Here we summarize the current understanding of the crosstalk between carbon metabolism and epigenetic modifications in macrophages under physiological conditions and in the tumor microenvironment (TME) and provide targets and further directions for macrophage-associated diseases.
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Affiliation(s)
- Zhending Gan
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510000, Guangdong, China
| | - Muyang Zhao
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510000, Guangdong, China
| | - Yaoyao Xia
- Laboratory for Bio-feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Yuqi Yan
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Wenkai Ren
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510000, Guangdong, China.
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Zhu X, Yu J, Ai F, Wang Y, Lv W, Yu G, Cao X, Lin J. CD24 May Serve as an Immunotherapy Target in Triple-Negative Breast Cancer by Regulating the Expression of PD-L1. BREAST CANCER (DOVE MEDICAL PRESS) 2023; 15:967-984. [PMID: 38164371 PMCID: PMC10758189 DOI: 10.2147/bctt.s409054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Purpose CD24 mediates a "don't eat me" signal to escape the immune environment. However, the correlation between CD24 and PD-L1 is unclear. This study aimed to assess if CD24 can serve as a target for immunotherapy of triple-negative breast cancer (TNBC). Methods Data on CD24 expression in breast cancer were acquired using the Oncomine and UALCAN tools. The role of CD24 expression on the prognosis of patients with TNBC was assessed using Kaplan-Meier analyses. Subsequently, STRING and TISIDB databases were used to construct protein-protein interaction networks and to explore immune-related molecules regulated by CD24. Immunofluorescence and immunohistochemistry assays were conducted to validate CD24 and PD-L1 expression and tumor infiltration lymphocyte (TIL) level. Survival analysis was also performed to explore the effect of CD24 and PD-L1 expression and TIL level in patients with TNBC. ShRNA was also used to explore the regulation role of CD24 on PD-L1 expression. Results CD24 expression was significantly higher in breast cancer than in normal tissues, with high expression being significantly associated with a worse prognosis. CD24 was found to be significantly regulated by chemokines, immunoinhibitors, immunostimulators and TILs. Furthermore, CD24 expression showed a significant positive correlation with PD-L1 expression and a negative correlation with TIL level. In association with PD-L1, CD24 was found to positively regulate lymphocyte costimulation, T cell costimulation, and leukocyte activation. Furthermore, CD24 and PD-L1 co-expression contributed to worse survival outcomes. In addition, CD24 expression was found to attenuate the positive effects of high-level TILs on the prognosis of patients with TNBC. CD24 can also regulate the expression of PD-L1 in TNBC cells. Conclusion CD24 may attenuate the positive effects of high TIL levels on survival and may facilitate the immune escape of TNBC by regulating PD-L1 expression. Thus, it is a potential target for immunotherapy in TNBC.
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Affiliation(s)
- Xudong Zhu
- Department of General Surgery, Cancer Hospital of China Medical University, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, 110042, People’s Republic of China
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People’s Republic of China
| | - Jiahui Yu
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People’s Republic of China
| | - Fulu Ai
- Department of General Surgery, Cancer Hospital of China Medical University, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, 110042, People’s Republic of China
| | - Yue Wang
- Department of General Surgery, Cancer Hospital of China Medical University, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, 110042, People’s Republic of China
| | - Wu Lv
- Department of General Surgery, Cancer Hospital of China Medical University, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, 110042, People’s Republic of China
| | - Guilin Yu
- Department of General Surgery, Cancer Hospital of China Medical University, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, 110042, People’s Republic of China
| | - Xiankui Cao
- Department of General Surgery, Cancer Hospital of China Medical University, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, 110042, People’s Republic of China
| | - Jie Lin
- Department of General Surgery, Cancer Hospital of China Medical University, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, 110042, People’s Republic of China
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Zhong K, Wu Y, Zhou J, Yang X, Yi C, Ge L, Li Z, He W, Cao J, Jiang G, Wang H, Li J. Isothermal Amplification-Based Detection of Single-Base RNA N6-Methyladenosine. Anal Chem 2023; 95:18821-18827. [PMID: 38049147 DOI: 10.1021/acs.analchem.3c03961] [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: 12/06/2023]
Abstract
N6-methyladenosine (m6A) has recently gained much attention due to its diverse biological functions. Currently, the commonly used detection methods for locus-specific m6A marks are complicated to operate, it is difficult to quantify the methylation level, and they have high false-positive levels. Here, we report a new method for locus-specific m6A detection based on the methylate-sensitive endonuclease activity of MazF and the simultaneous amplification and testing (SAT) method, termed "m6A-MazF-SAT". Mechanically, MazF fails to cleave the A (m6A) CA motif; therefore, the undigested template can be SAT-amplified using specific probes targeting the upstream and downstream of sites of interest. Fluorescent signals of SAT amplification can be detected by real-time PCR, and therefore, they achieve the detection of m6A existence. After the condition optimization, m6A-MazF-SAT can significantly, accurately, and rapidly detect the m6A-modified sites in mRNA, rRNA, and lncRNA at the fmol level, as well as 10% m6A at the fmol level. In addition, m6A-MazF-SAT can quantify the abundance of target m6A in biological samples and can be used for the inhibitor selection of m6A-related enzymes. Together, we offer a new approach to detect locus-specific m6A both qualitatively and quantitatively; it is easy to operate, results can be obtained rapidly, and it has low false-positive levels and high repeatability.
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Affiliation(s)
- Ke Zhong
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - You Wu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jiangli Zhou
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xianyuan Yang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Cheng Yi
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Lichen Ge
- Department of Laboratory Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Zigang Li
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 518067, China
| | - Weiling He
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, China
| | - Jie Cao
- Department of General Surgery, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, The Second Affiliated Hospital of South China University of Technology, Guangzhou 510180, China
| | - Guanmin Jiang
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 2528000, Guangdong, China
| | - Hongsheng Wang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jiexin Li
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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Rong H, Wang D, Wang Y, Dong C, Wang G. YTHDF1 in Tumor Cell Metabolism: An Updated Review. Molecules 2023; 29:140. [PMID: 38202722 PMCID: PMC10779796 DOI: 10.3390/molecules29010140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
With the advancement of research on m6A-related mechanisms in recent years, the YTHDF protein family within m6A readers has garnered significant attention. Among them, YTHDF1 serves as a pivotal member, playing a crucial role in protein translation, tumor proliferation, metabolic reprogramming of various tumor cells, and immune evasion. In addition, YTHDF1 also exerts regulatory effects on tumors through multiple signaling pathways, and numerous studies have confirmed its ability to assist in the reprogramming of the tumor cell-related metabolic processes. The focus of research on YTHDF1 has shifted in recent years from its m6A-recognition and -modification function to the molecular mechanisms by which it regulates tumor progression, particularly by exploring the regulatory factors that interact with YTHDF1 upstream and downstream. In this review, we elucidate the latest signaling pathway mechanisms of YTHDF1 in various tumor cells, with a special emphasis on its distinctive characteristics in tumor cell metabolic reprogramming. Furthermore, we summarize the latest pathological and physiological processes involving YTHDF1 in tumor cells, and analyze potential therapeutic approaches that utilize YTHDF1. We believe that YTHDF1 represents a highly promising target for future tumor treatments and a novel tumor biomarker.
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Affiliation(s)
| | | | | | | | - Guiling Wang
- Key Laboratory of Cell Biology, Department of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang 110122, China; (H.R.); (D.W.); (Y.W.); (C.D.)
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Chaib M, Holt JR, Fisher EL, Sipe LM, Bohm MS, Joseph SC, Simmons BW, Eugin Simon S, Yarbro JR, Tanveer U, Halle JL, Carson JA, Hollingsworth T, Wei Q, Rathmell JC, Thomas PG, Hayes DN, Makowski L. Protein kinase C delta regulates mononuclear phagocytes and hinders response to immunotherapy in cancer. SCIENCE ADVANCES 2023; 9:eadd3231. [PMID: 38134280 PMCID: PMC10745701 DOI: 10.1126/sciadv.add3231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 11/21/2023] [Indexed: 12/24/2023]
Abstract
Mononuclear phagocytes (MPs) play a crucial role in tissue homeostasis; however, MPs also contribute to tumor progression and resistance to immune checkpoint blockade (ICB). Targeting MPs could be an effective strategy to enhance ICB efficacy. We report that protein kinase C delta (PKCδ), a serine/threonine kinase, is abundantly expressed by MPs in human and mouse tumors. PKCδ-/- mice displayed reduced tumor progression compared to wild types, with increased response to anti-PD-1. Tumors from PKCδ-/- mice demonstrated TH1-skewed immune response including increased antigen presentation and T cell activation. Depletion of MPs in vivo altered tumor growth in control but not PKCδ-/- mice. Coinjection of PKCδ-/- M2-like macrophages with cancer cells into wild-type mice markedly delayed tumor growth and significantly increased intratumoral T cell activation compared to PKCδ+/+ controls. PKCδ deficiency reprogrammed MPs by activating type I and type II interferon signaling. Thus, PKCδ might be targeted to reprogram MPs to augment ICB efficacy.
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Affiliation(s)
- Mehdi Chaib
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Jeremiah R. Holt
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Emilie L. Fisher
- Vanderbilt Center for Immunobiology and Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37235, USA
| | - Laura M. Sipe
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Margaret S. Bohm
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Sydney C. Joseph
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Boston W. Simmons
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Samson Eugin Simon
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Johnathan R. Yarbro
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Ubaid Tanveer
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Jessica L. Halle
- Department of Physical Therapy, College of Health Professions, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - James A. Carson
- Department of Physical Therapy, College of Health Professions, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - T.J. Hollingsworth
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Department of Ophthalmology, Hamilton Eye Institute, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - QingQing Wei
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA 30912, USA
| | - Jeffrey C. Rathmell
- Vanderbilt Center for Immunobiology and Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37235, USA
| | - Paul G. Thomas
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - D. Neil Hayes
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
- UTHSC Center for Cancer Research, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Liza Makowski
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Department of Medicine, Division of Hematology and Oncology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
- UTHSC Center for Cancer Research, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
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