1
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Jin Y, Han X, Wang Y, Fan Z. METTL7A-mediated m6A modification of corin reverses bisphosphonates-impaired osteogenic differentiation of orofacial BMSCs. Int J Oral Sci 2024; 16:42. [PMID: 38782892 PMCID: PMC11116408 DOI: 10.1038/s41368-024-00303-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 03/06/2024] [Accepted: 04/15/2024] [Indexed: 05/25/2024] Open
Abstract
Bisphosphonate-related osteonecrosis of jaw (BRONJ) is characterized by impaired osteogenic differentiation of orofacial bone marrow stromal cells (BMSCs). Corin has recently been demonstrated to act as a key regulator in bone development and orthopedic disorders. However, the role of corin in BRONJ-related BMSCs dysfunction remains unclarified. A m6A epitranscriptomic microarray study from our group shows that the CORIN gene is significantly upregulated and m6A hypermethylated during orofacial BMSCs osteogenic differentiation. Corin knockdown inhibits BMSCs osteogenic differentiation, whereas corin overexpression or soluble corin (sCorin) exerts a promotion effect. Furthermore, corin expression is negatively regulated by bisphosphonates (BPs). Corin overexpression or sCorin reverses BPs-impaired BMSCs differentiation ability. Mechanistically, we find altered expression of phos-ERK in corin knockdown/overexpression BMSCs and BMSCs under sCorin stimulation. PD98059 (a selective ERK inhibitor) blocks the corin-mediated promotion effect. With regard to the high methylation level of corin during osteogenic differentiation, we apply a non-selective m6A methylase inhibitor, Cycloleucine, which also blocks the corin-mediated promotion effect. Furthermore, we demonstrate that METTL7A modulates corin m6A modification and reverses BPs-impaired BMSCs function, indicating that METTL7A regulates corin expression and thus contributes to orofacial BMSCs differentiation ability. To conclude, our study reveals that corin reverses BPs-induced BMSCs dysfunction, and METTL7A-mediated corin m6A modification underlies corin promotion of osteogenic differentiation via the ERK pathway. We hope this brings new insights into future clinical treatments for BRONJ.
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Affiliation(s)
- Yizhou Jin
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Xiao Han
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Yuejun Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Zhipeng Fan
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China.
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, China.
- Research Unit of Tooth Development and Regeneration, Chinese Academy of Medical Sciences, Beijing, China.
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2
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Zhang D, Zou T, Liu Q, Chen J, Xiao M, Zheng A, Zhang Z, Du F, Dai Y, Xiang S, Wu X, Li M, Chen Y, Zhao Y, Shen J, Chen G, Xiao Z. Transcriptomic characterization revealed that METTL7A inhibits melanoma progression via the p53 signaling pathway and immunomodulatory pathway. PeerJ 2023; 11:e15799. [PMID: 37547717 PMCID: PMC10404031 DOI: 10.7717/peerj.15799] [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: 03/07/2023] [Accepted: 07/05/2023] [Indexed: 08/08/2023] Open
Abstract
METTL7A is a protein-coding gene expected to be associated with methylation, and its expression disorder is associated with a range of diseases. However, few research have been carried out to explore the relationship between METTL7A and tumor malignant phenotype as well as the involvement potential mechanism. We conducted our research via a combination of silico analysis and molecular biology techniques to investigate the biological function of METTL7A in the progression of cancer. Gene expression and clinical information were extracted from the TCGA database to explore expression variation and prognostic value of METTL7A. In vitro, CCK8, transwell, wound healing and colony formation assays were conducted to explore the biological functions of METT7A in cancer cell. GSEA was performed to explore the signaling pathway involved in METTL7A and validated via western blotting. In conclusion, METTL7A was downregulated in most cancer tissues and its low expression was associated with shorter overall survival. In melanoma, METTL7A downregulation was associated with poorer clinical staging, lower levels of TIL infiltration, higher IC50 levels of chemotherapeutic agents, and poorer immunotherapy outcomes. QPCR results confirm that METTL7A is down-regulated in melanoma cells. Cell function assays showed that METTL7A knockdown promoted proliferation, invasion, migration and clone formation of melanoma cells. Mechanistic studies showed that METTL7A inhibits tumorigenicity through the p53 signaling pathway. Meanwhile, METTL7A is also a potential immune regulatory factor.
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Affiliation(s)
- Duoli Zhang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
| | - Tao Zou
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
| | - Qingsong Liu
- Department of Pathology, The First People’s Hospital of Neijiang, Neijiang, China
| | - Jie Chen
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
| | - Mintao Xiao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
| | - Anfu Zheng
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
| | - Zhuo Zhang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
| | - Fukuan Du
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
- Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Yalan Dai
- Department of Oncology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Shixin Xiang
- Department of Pharmacy, University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Xu Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
- Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Mingxing Li
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
- Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Yu Chen
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
- Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Yueshui Zhao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
- Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Jing Shen
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
- Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
| | - Guiquan Chen
- Chinese Medicine Hospital Affiliated to Southwest Medical University, Luzhou, Sichuan, China
| | - Zhangang Xiao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Laboratory of Molecular Pharmacology, Luzhou, China
- Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
- South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, China
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3
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Han X, Li G, Yang H, Zhang C, Cao Y, Wang N, Ge L, Fan Z. METTL3 Promotes Osteo/Odontogenic Differentiation of Stem Cells by Inhibiting miR-196b-5p Maturation. Stem Cells Int 2023; 2023:8992284. [PMID: 37323630 PMCID: PMC10266913 DOI: 10.1155/2023/8992284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 03/27/2023] [Accepted: 05/11/2023] [Indexed: 06/17/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been considered a potential method for the regeneration of tooth and maxillofacial bone defects based on the multidirectional differentiation characteristics of MSCs. miRNAs have been found to play a key role in the differentiation of MSCs. However, its effectiveness still needs to be improved, and its internal mechanism is still unclear. In the present study, our data discovered that the knockdown of miR-196b-5p promoted alkaline phosphatase (ALP) activity assay, mineralization in vitro, and expressions of osteo/odontogenic differentiation markers DSPP and OCN and enhanced in vivo osteo/odontogenic differentiation of stem cells of the apical papilla (SCAPs). Mechanistically, the results indicated that METTL3-dependent N6-methyladenosine (m6A) methylation inhibited miR-196b-5p maturation by the microprocessor protein DGCR8. Moreover, miR-196b-5p indirectly negatively regulates METTL3 in SCAPs. Then, METTL3 was found to strengthen the ALP activity assay, mineralization, and expressions of osteo/dentinogenic differentiation markers. Taken together, our findings highlight the critical roles of the METTL3-miR-196b-5p signaling axis in an m6A-dependent manner in osteo/odontogenic differentiation of SCAPs, identifying some potential targets for tooth and maxillofacial bone defects.
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Affiliation(s)
- Xiao Han
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Guoyue Li
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Haoqing Yang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Chen Zhang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Yangyang Cao
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Ning Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Lihua Ge
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Zhipeng Fan
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
- Research Unit of Tooth Development and Regeneration, Chinese Academy of Medical Sciences, China
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4
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Vera-Montecinos A, Galiano-Landeira J, Roldán M, Vidal-Domènech F, Claro E, Ramos B. A Novel Localization of METTL7A in Bergmann Glial Cells in Human Cerebellum. Int J Mol Sci 2023; 24:ijms24098405. [PMID: 37176112 PMCID: PMC10179429 DOI: 10.3390/ijms24098405] [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: 11/18/2022] [Revised: 04/28/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023] Open
Abstract
Methyltransferase-like protein 7A (METTL7A) is a member of the METTL family of methyltransferases.Little information is available regarding the cellular expression of METTL7A in the brain. METTL7A is commonly located in the endoplasmic reticulum and to a lesser extent, in the lipid droplets of some cells. Several studies have reported altered protein and RNA levels in different brain areas in schizophrenia. One of these studies found reduced protein levels of METTL7A in the cerebellar cortex in schizophrenia and stress murine models. Since there is limited information in the literature about METTL7A, we characterized its cellular and subcellular localizations in the human cerebellum using immunohistochemical analysis with laser confocal microscopy. Our study reveals a novel METTL7A localization in GFAP-positive cells, with higher expression in the end-feet of the Bergmann glia, which participate in the cerebrospinal fluid-brain parenchyma barrier. Further 3D reconstruction image analysis showed that METTL7A was expressed in the contacts between the Bergmann glia and Purkinje neurons. METTL7A was also detected in lipid droplets in some cells in the white matter. The localization of METTL7A in the human cerebellar glia limitans could suggest a putative role in maintaining the cerebellar parenchyma homeostasis and in the regulation of internal cerebellar circuits by modulating the synaptic activity of Purkinje neurons.
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Affiliation(s)
- América Vera-Montecinos
- Psiquiatria Molecular, Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
| | - Jordi Galiano-Landeira
- Psiquiatria Molecular, Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
| | - Mònica Roldán
- Unitat de Microscòpia Confocal i Imatge Cel·lular, Servei de Medicina Genètica i Molecular, Institut Pediàtric de Malalties Rares (IPER), Hospital Sant Joan de Déu, Esplugues de Llobregat, 08950 Barcelona, Spain
- Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, 08950 Barcelona, Spain
| | - Francisco Vidal-Domènech
- Psiquiatria Molecular, Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
| | - Enrique Claro
- Departament de Bioquímica i Biologia Molecular, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Institut de Neurociències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Belén Ramos
- Psiquiatria Molecular, Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
- Departament de Bioquímica i Biologia Molecular, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (Biomedical Network Research Center of Mental Health), Institute of Health Carlos III, 28029 Madrid, Spain
- Faculty of Medicine, University of Vic-Central University of Catalonia, 08500 Vic, Spain
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5
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Xu K, Liu Q, Huang W, Chu Y, Fan W, Liu J, He Y, Huang F. Promotive Effect of FBXO32 on the Odontoblastic Differentiation of Human Dental Pulp Stem Cells. Int J Mol Sci 2023; 24:ijms24097708. [PMID: 37175415 PMCID: PMC10178205 DOI: 10.3390/ijms24097708] [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: 03/17/2023] [Revised: 04/11/2023] [Accepted: 04/15/2023] [Indexed: 05/15/2023] Open
Abstract
Odontoblastic differentiation of human dental pulp stem cells (hDPSCs) is crucial for the intricate formation and repair processes in dental pulp. Until now, the literature is not able to demonstrate the role of ubiquitination in the odontoblastic differentiation of hDPSCs. This study investigated the role of F-box-only protein 32 (FBXO32), an E3 ligase, in the odontoblastic differentiation of hDPSCs. The mRNA expression profile was obtained from ribonucleic acid sequencing (RNA-Seq) data and analyzed. Immunofluorescence and immunohistochemical staining identify the FBXO32 expression in human dental pulp and hDPSCs. Small-hairpin RNA lentivirus was used for FBXO32 knockdown and overexpression. Odontoblastic differentiation of hDPSCs was determined via alkaline phosphatase activity, Alizarin Red S staining, and mRNA and protein expression levels were detected using real-time quantitative polymerase chain reaction and Western blotting. Furthermore, subcutaneous transplantation in nude mice was performed to evaluate the role of FBXO32 in mineralization in vivo using histological analysis. FBXO32 expression was upregulated in the odontoblast differentiated hDPSCs as evidenced by RNA-Seq data analysis. FBXO32 was detected in hDPSCs and the odontoblast layer of the dental pulp. Increased FBXO32 expression in hDPSCs during odontoblastic differentiation was confirmed. Through lentivirus infection method, FBXO32 downregulation in hDPSCs attenuated odontoblastic differentiation in vitro and in vivo, whereas FBXO32 upregulation promoted the hDPSCs odontoblastic differentiation, without affecting proliferation and migration. This study demonstrated, for the first time, the promotive role of FBXO32 in regulating the odontoblastic differentiation of hDPSCs, thereby providing novel insights into the regulatory mechanisms during odontoblastic differentiation in hDPSCs.
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Affiliation(s)
- Ke Xu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Qin Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Wushuang Huang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yanhao Chu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Wenguo Fan
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jiawei Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yifan He
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Fang Huang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
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6
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Abstract
The methyltransferase-like (METTL) family is a diverse group of methyltransferases that can methylate nucleotides, proteins, and small molecules. Despite this diverse array of substrates, they all share a characteristic seven-beta-strand catalytic domain, and recent evidence suggests many also share an important role in stem cell biology. The most well characterized family members METTL3 and METTL14 dimerize to form an N6-methyladenosine (m6A) RNA methyltransferase with established roles in cancer progression. However, new mouse models indicate that METTL3/METTL14 are also important for embryonic stem cell (ESC) development and postnatal hematopoietic and neural stem cell self-renewal and differentiation. METTL1, METTL5, METTL6, METTL8, and METTL17 also have recently identified roles in ESC pluripotency and differentiation, while METTL11A/11B, METTL4, METTL7A, and METTL22 have been shown to play roles in neural, mesenchymal, bone, and hematopoietic stem cell development, respectively. Additionally, a variety of other METTL family members are translational regulators, a role that could place them as important players in the transition from stem cell quiescence to differentiation. Here we will summarize what is known about the role of METTL proteins in stem cell differentiation and highlight the connection between their growing importance in development and their established roles in oncogenesis.
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Affiliation(s)
- John G Tooley
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, 955 Main St., Buffalo, NY, 14203, USA
| | - James P Catlin
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, 955 Main St., Buffalo, NY, 14203, USA
| | - Christine E Schaner Tooley
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, 955 Main St., Buffalo, NY, 14203, USA.
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Briata P, Caputo L, Zapparoli E, Marcaccini E, Passalacqua M, Brondolo L, Bordo D, Rossi A, Nicoletti C, Bucci G, Puri PL, Inga A, Gherzi R. LncRNA EPR-induced METTL7A1 modulates target gene translation. Nucleic Acids Res 2022; 50:7608-7622. [PMID: 35748870 PMCID: PMC9303270 DOI: 10.1093/nar/gkac544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/24/2022] [Accepted: 06/09/2022] [Indexed: 12/23/2022] Open
Abstract
EPR is a long non-coding RNA (lncRNA) that controls cell proliferation in mammary gland cells by regulating gene transcription. Here, we report on Mettl7a1 as a direct target of EPR. We show that EPR induces Mettl7a1 transcription by rewiring three-dimensional chromatin interactions at the Mettl7a1 locus. Our data indicate that METTL7A1 contributes to EPR-dependent inhibition of TGF-β signaling. METTL7A1 is absent in tumorigenic murine mammary gland cells and its human ortholog (METTL7A) is downregulated in breast cancers. Importantly, re-expression of METTL7A1 in 4T1 tumorigenic cells attenuates their transformation potential, with the putative methyltransferase activity of METTL7A1 being dispensable for its biological functions. We found that METTL7A1 localizes in the cytoplasm whereby it interacts with factors implicated in the early steps of mRNA translation, associates with ribosomes, and affects the levels of target proteins without altering mRNA abundance. Overall, our data indicates that METTL7A1-a transcriptional target of EPR-modulates translation of select transcripts.
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Affiliation(s)
- Paola Briata
- Correspondence may also be addressed to Paola Briata. Tel: +39 010555540;
| | | | - Ettore Zapparoli
- Center for Omics Sciences, IRCCS Ospedale, San Raffaele, 20132 Milano, Italy
| | - Elisa Marcaccini
- Gene Expression Regulation Laboratory, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Mario Passalacqua
- Department of Experimental Medicine (DIMES), University of Genoa, 16132 Genoa, Italy,Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (3R Center), 56122 Pisa, Italy
| | - Lorenzo Brondolo
- Gene Expression Regulation Laboratory, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Domenico Bordo
- Gene Expression Regulation Laboratory, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Annalisa Rossi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Chiara Nicoletti
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Gabriele Bucci
- Center for Omics Sciences, IRCCS Ospedale, San Raffaele, 20132 Milano, Italy
| | - Pier Lorenzo Puri
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | | | - Roberto Gherzi
- To whom correspondence should be addressed. Tel: +39 010555402; Emails: ;
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