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Collart MA, Audebert L, Bushell M. Roles of the CCR4-Not complex in translation and dynamics of co-translation events. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 15:e1827. [PMID: 38009591 PMCID: PMC10909573 DOI: 10.1002/wrna.1827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/06/2023] [Accepted: 10/30/2023] [Indexed: 11/29/2023]
Abstract
The Ccr4-Not complex is a global regulator of mRNA metabolism in eukaryotic cells that is most well-known to repress gene expression. Delivery of the complex to mRNAs through a multitude of distinct mechanisms accelerates their decay, yet Ccr4-Not also plays an important role in co-translational processes, such as co-translational association of proteins and delivery of translating mRNAs to organelles. The recent structure of Not5 interacting with the translated ribosome has brought to light that embedded information within the codon sequence can be monitored by recruitment of the Ccr4-Not complex to elongating ribosomes. Thereby, the Ccr4-Not complex is empowered with regulatory decisions determining the fate of proteins being synthesized and their encoding mRNAs. This review will focus on the roles of the complex in translation and dynamics of co-translation events. This article is categorized under: Translation > Mechanisms Translation > Regulation.
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Affiliation(s)
- Martine A. Collart
- Department of Microbiology and Molecular MedicineInstitute of Genetics and Genomics Geneva, University of Geneva, Faculty of MedicineGenèveSwitzerland
| | - Léna Audebert
- Department of Microbiology and Molecular MedicineInstitute of Genetics and Genomics Geneva, University of Geneva, Faculty of MedicineGenèveSwitzerland
| | - Martin Bushell
- Cancer Research UK Beatson InstituteGlasgowUK
- School of Cancer Sciences, University of GlasgowGlasgowUK
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Liang Y, Shen L, Ni W, Ding Y, Yang W, Gu T, Zhang C, Yik JHN, Haudenschild DR, Fan S, Shen S, Hu Z. CircGNB1 drives osteoarthritis pathogenesis by inducing oxidative stress in chondrocytes. Clin Transl Med 2023; 13:e1358. [PMID: 37537733 PMCID: PMC10400757 DOI: 10.1002/ctm2.1358] [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: 03/29/2023] [Revised: 07/20/2023] [Accepted: 07/24/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) have risen to prominence as important regulators of biological processes. This study investigated whether circGNB1 functions as a competitive endogenous RNA to regulate the pathological process of oxidative stress in age-related osteoarthritis (OA). METHODS The relationship between circGNB1 expression and oxidative stress/OA severity was determined in cartilages from OA patients at different ages. The biological roles of circGNB1 in oxidative stress and OA progression, and its downstream targets were determined using gain- and loss-of-function experiments in various biochemical assays in human chondrocytes (HCs). The in vivo effects of circGNB1 overexpression and knockdown were also determined using a destabilization of the medial meniscus (DMM) mouse model. RESULTS Increased circGNB1 expression was detected in HCs under oxidative and inflammatory stress and in the cartilage of older individuals. Mechanistically, circGNB1 sponged miR-152-3p and thus blocked its interaction with its downstream mRNA target, ring finger protein 219 (RNF219), which in turn stabilized caveolin-1 (CAV1) by preventing its ubiquitination at the K47 residue. CircGNB1 inhibited IL-10 signalling by antagonizing miR-152-3p-mediated RNF219 and CAV1 inhibition. Consequently, circGNB1 overexpression promoted OA progression by enhancing catabolic factor expression and oxidative stress and by suppressing anabolic genes in vitro and in vivo. Furthermore, circGNB1 knockdown alleviated the severity of OA, whereas circGNB1 overexpression had the opposite effect in a DMM mouse model of OA. CONCLUSION CircGNB1 regulated oxidative stress and OA progression via the miR-152-3p/RNF219/CAV1 axis. Modulating circGNB1 could be an effective strategy for treating OA.
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Affiliation(s)
- Yi Liang
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Lifeng Shen
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Weiyu Ni
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Yuhong Ding
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Wentao Yang
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Tianyuan Gu
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Chenfeng Zhang
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Jasper H. N. Yik
- Ellison Musculoskeletal Research CenterDepartment of Orthopaedic SurgeryUniversity of California SystemDavisCaliforniaUSA
| | - Dominik R. Haudenschild
- Ellison Musculoskeletal Research CenterDepartment of Orthopaedic SurgeryUniversity of California SystemDavisCaliforniaUSA
| | - Shunwu Fan
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Shuying Shen
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
| | - Ziang Hu
- Department of Orthopedic SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang ProvinceHangzhouChina
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Pavanello L, Hall M, Winkler GS. Regulation of eukaryotic mRNA deadenylation and degradation by the Ccr4-Not complex. Front Cell Dev Biol 2023; 11:1153624. [PMID: 37152278 PMCID: PMC10157403 DOI: 10.3389/fcell.2023.1153624] [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: 01/29/2023] [Accepted: 03/20/2023] [Indexed: 05/09/2023] Open
Abstract
Accurate and precise regulation of gene expression programmes in eukaryotes involves the coordinated control of transcription, mRNA stability and translation. In recent years, significant progress has been made about the role of sequence elements in the 3' untranslated region for the regulation of mRNA degradation, and a model has emerged in which recruitment of the Ccr4-Not complex is the critical step in the regulation of mRNA decay. Recruitment of the Ccr4-Not complex to a target mRNA results in deadenylation mediated by the Caf1 and Ccr4 catalytic subunits of the complex. Following deadenylation, the 5' cap structure is removed, and the mRNA subjected to 5'-3' degradation. Here, the role of the human Ccr4-Not complex in cytoplasmic deadenylation of mRNA is reviewed, with a particular focus on mechanisms of its recruitment to mRNA by sequence motifs in the 3' untranslated region, codon usage, as well as general mechanisms involving the poly(A) tail.
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Affiliation(s)
- Lorenzo Pavanello
- School of Pharmacy, University of Nottingham, University Park, Nottingham, United Kingdom
| | - Michael Hall
- School of Pharmacy, University of Nottingham, University Park, Nottingham, United Kingdom
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The human CNOT1-CNOT10-CNOT11 complex forms a structural platform for protein-protein interactions. Cell Rep 2022; 42:111902. [PMID: 36586408 PMCID: PMC9902336 DOI: 10.1016/j.celrep.2022.111902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/27/2022] [Accepted: 12/08/2022] [Indexed: 12/31/2022] Open
Abstract
The evolutionary conserved CCR4-NOT complex functions in the cytoplasm as the main mRNA deadenylase in both constitutive mRNA turnover and regulated mRNA decay pathways. The versatility of this complex is underpinned by its modular multi-subunit organization, with distinct structural modules actuating different functions. The structure and function of all modules are known, except for that of the N-terminal module. Using different structural approaches, we obtained high-resolution data revealing the architecture of the human N-terminal module composed of CNOT1, CNOT10, and CNOT11. The structure shows how two helical domains of CNOT1 sandwich CNOT10 and CNOT11, leaving the most conserved domain of CNOT11 protruding into solvent as an antenna. We discovered that GGNBP2, a protein identified as a tumor suppressor and spermatogenic factor, is a conserved interacting partner of the CNOT11 antenna domain. Structural and biochemical analyses thus pinpoint the N-terminal CNOT1-CNOT10-CNOT11 module as a conserved protein-protein interaction platform.
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Guénolé A, Velilla F, Chartier A, Rich A, Carvunis AR, Sardet C, Simonelig M, Sobhian B. RNF219 regulates CCR4-NOT function in mRNA translation and deadenylation. Sci Rep 2022; 12:9288. [PMID: 35660762 PMCID: PMC9166816 DOI: 10.1038/s41598-022-13309-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 05/05/2022] [Indexed: 11/30/2022] Open
Abstract
Post-transcriptional regulatory mechanisms play a role in many biological contexts through the control of mRNA degradation, translation and localization. Here, we show that the RING finger protein RNF219 co-purifies with the CCR4-NOT complex, the major mRNA deadenylase in eukaryotes, which mediates translational repression in both a deadenylase activity-dependent and -independent manner. Strikingly, RNF219 both inhibits the deadenylase activity of CCR4-NOT and enhances its capacity to repress translation of a target mRNA. We propose that the interaction of RNF219 with the CCR4-NOT complex directs the translational repressive activity of CCR4-NOT to a deadenylation-independent mechanism.
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Affiliation(s)
- Aude Guénolé
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM, Université de Montpellier, Institut Régional du Cancer de Montpellier (ICM), 34298, Montpellier, France.
| | - Fabien Velilla
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM, Université de Montpellier, Institut Régional du Cancer de Montpellier (ICM), 34298, Montpellier, France
| | - Aymeric Chartier
- Institut de Génétique Humaine, CNRS, Université de Montpellier, 34396, Montpellier, France
| | - April Rich
- Department of Computational and Systems Biology, Pittsburgh Center for Evolutionary Biology and Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Anne-Ruxandra Carvunis
- Department of Computational and Systems Biology, Pittsburgh Center for Evolutionary Biology and Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Claude Sardet
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM, Université de Montpellier, Institut Régional du Cancer de Montpellier (ICM), 34298, Montpellier, France
| | - Martine Simonelig
- Institut de Génétique Humaine, CNRS, Université de Montpellier, 34396, Montpellier, France
| | - Bijan Sobhian
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM, Université de Montpellier, Institut Régional du Cancer de Montpellier (ICM), 34298, Montpellier, France. .,Institut de Génétique Humaine, CNRS, Université de Montpellier, 34396, Montpellier, France.
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Liu L, He J, Sun G, Huang N, Bian Z, Xu C, Zhang Y, Cui Z, Xu W, Sun F, Zhuang C, Man Q, Gu S. The N6-methyladenosine modification enhances ferroptosis resistance through inhibiting SLC7A11 mRNA deadenylation in hepatoblastoma. Clin Transl Med 2022; 12:e778. [PMID: 35522946 PMCID: PMC9076012 DOI: 10.1002/ctm2.778] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 03/01/2022] [Accepted: 03/07/2022] [Indexed: 01/17/2023] Open
Abstract
Background Solute carrier family 7 member 11 (SLC7A11) is overexpressed in multiple human tumours and functions as a transporter importing cystine for glutathione biosynthesis. It promotes tumour development in part by suppressing ferroptosis, a newly identified form of cell death that plays a pivotal role in the suppression of tumorigenesis. However, the role and underlying mechanisms of SLC7A11‐mediated ferroptosis in hepatoblastoma (HB) remain largely unknown. Methods Reverse transcription quantitative real‐time PCR (RT‐qPCR) and western blotting were used to measure SLC7A11 levels. Cell proliferation, colony formation, lipid reactive oxygen species (ROS), MDA concentration, 4‐HNE, GSH/GSSG ratio and cell death assays as well as subcutaneous xenograft experiments were used to elucidate the effects of SLC7A11 in HB cell proliferation and ferroptosis. Furthermore, MeRIP‐qPCR, dual luciferase reporter, RNA pulldown, RNA immunoprecipitation (RIP) and RACE‐PAT assays were performed to elucidate the underlying mechanism through which SLC7A11 was regulated by the m6A modification in HB. Results SLC7A11 expression was highly upregulated in HB. SLC7A11 upregulation promoted HB cell proliferation in vitro and in vivo, inhibiting HB cell ferroptosis. Mechanistically, SLC7A11 mRNA exhibited abnormal METTL3‐mediated m6A modification, which enhanced its stability and expression. IGF2 mRNA‐binding protein 1 (IGF2BP1) was identified as the m6A reader of SLC7A11, enhancing SLC7A11 mRNA stability and expression by inhibiting SLC7A11 mRNA deadenylation in an m6A‐dependent manner. Moreover, IGF2BP1 was found to block BTG2/CCR4‐NOT complex recruitment via competitively binding to PABPC1, thereby suppressing SLC7A11 mRNA deadenylation. Conclusions Our findings demonstrated that the METTL3‐mediated SLC7A11 m6A modification enhances HB ferroptosis resistance. The METTL3/IGF2BP1/m6A modification promotes SLC7A11 mRNA stability and upregulates its expression by inhibiting the deadenylation process. Our study highlights a critical role of the m6A modification in SLC7A11‐mediated ferroptosis, providing a potential strategy for HB therapy through blockade of the m6A‐SLC7A11 axis.
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Affiliation(s)
- Li Liu
- Department of Clinical LaboratoryShanghai Fourth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Jiangtu He
- Department of Clinical LaboratoryShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Guifeng Sun
- Department of Clinical LaboratoryShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Nan Huang
- Department of Clinical LaboratoryShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Zhixuan Bian
- Department of Laboratory MedicineShanghai Children's Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Chang Xu
- Department of Clinical LaboratoryShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Yue Zhang
- Department of Central LaboratoryShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Zhongqi Cui
- Department of Clinical LaboratoryShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Wenqiang Xu
- Department of Clinical LaboratoryShanghai Fourth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Fenyong Sun
- Department of Clinical LaboratoryShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Chengle Zhuang
- Colorectal Cancer CenterShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Gastrointestinal SurgeryShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Qiuhong Man
- Department of Clinical LaboratoryShanghai Fourth People's HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Song Gu
- Department of SurgeryShanghai Children's Medical CenterSchool of medicineShanghai Jiaotong UniversityShanghaiChina
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Poetz F, Corbo J, Levdansky Y, Spiegelhalter A, Lindner D, Magg V, Lebedeva S, Schweiggert J, Schott J, Valkov E, Stoecklin G. RNF219 attenuates global mRNA decay through inhibition of CCR4-NOT complex-mediated deadenylation. Nat Commun 2021; 12:7175. [PMID: 34887419 PMCID: PMC8660800 DOI: 10.1038/s41467-021-27471-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 11/17/2021] [Indexed: 12/14/2022] Open
Abstract
The CCR4-NOT complex acts as a central player in the control of mRNA turnover and mediates accelerated mRNA degradation upon HDAC inhibition. Here, we explored acetylation-induced changes in the composition of the CCR4-NOT complex by purification of the endogenously tagged scaffold subunit NOT1 and identified RNF219 as an acetylation-regulated cofactor. We demonstrate that RNF219 is an active RING-type E3 ligase which stably associates with CCR4-NOT via NOT9 through a short linear motif (SLiM) embedded within the C-terminal low-complexity region of RNF219. By using a reconstituted six-subunit human CCR4-NOT complex, we demonstrate that RNF219 inhibits deadenylation through the direct interaction of the α-helical SLiM with the NOT9 module. Transcriptome-wide mRNA half-life measurements reveal that RNF219 attenuates global mRNA turnover in cells, with differential requirement of its RING domain. Our results establish RNF219 as an inhibitor of CCR4-NOT-mediated deadenylation, whose loss upon HDAC inhibition contributes to accelerated mRNA turnover.
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Affiliation(s)
- Fabian Poetz
- Division of Biochemistry, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany
- Center for Molecular Biology of Heidelberg University (ZMBH), German Cancer Research Center (DKFZ)-ZMBH Alliance, 69120, Heidelberg, Germany
| | - Joshua Corbo
- RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute (NCI), Frederick, MD, 21702-1201, USA
| | - Yevgen Levdansky
- RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute (NCI), Frederick, MD, 21702-1201, USA
| | - Alexander Spiegelhalter
- Division of Biochemistry, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany
- Center for Molecular Biology of Heidelberg University (ZMBH), German Cancer Research Center (DKFZ)-ZMBH Alliance, 69120, Heidelberg, Germany
| | - Doris Lindner
- Division of Biochemistry, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany
- Center for Molecular Biology of Heidelberg University (ZMBH), German Cancer Research Center (DKFZ)-ZMBH Alliance, 69120, Heidelberg, Germany
| | - Vera Magg
- Department of Infectious Diseases, Molecular Virology, Center for Integrative Infectious Disease Research (CIID), Heidelberg University, 69120, Heidelberg, Germany
| | - Svetlana Lebedeva
- Berlin Institute for Molecular Systems Biology (BIMSB), Max Delbrück Center for Molecular Medicine, 10115, Berlin, Germany
| | - Jörg Schweiggert
- Center for Molecular Biology of Heidelberg University (ZMBH), German Cancer Research Center (DKFZ)-ZMBH Alliance, 69120, Heidelberg, Germany
| | - Johanna Schott
- Division of Biochemistry, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany
- Center for Molecular Biology of Heidelberg University (ZMBH), German Cancer Research Center (DKFZ)-ZMBH Alliance, 69120, Heidelberg, Germany
| | - Eugene Valkov
- RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute (NCI), Frederick, MD, 21702-1201, USA.
| | - Georg Stoecklin
- Division of Biochemistry, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany.
- Center for Molecular Biology of Heidelberg University (ZMBH), German Cancer Research Center (DKFZ)-ZMBH Alliance, 69120, Heidelberg, Germany.
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