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Cai H, Ma G, Zhang Z, Liu G, Lu R, Liu Y, Wang J, Wang S, Sun S, Mingyan E, Li Z, Fang S, Yu B. A potential early-atheroprotective target: Irgm1 mediates lymphangiogenesis through LEC autophagy by Tfeb translocation. Biochim Biophys Acta Mol Basis Dis 2024:167238. [PMID: 38759815 DOI: 10.1016/j.bbadis.2024.167238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/19/2024]
Abstract
Lymphatic dysfunction is a pivotal pathological mechanism underlying the development of early atherosclerotic plaques. Potential targets of lymphatic function must be identified to realize the early prevention and treatment of atherosclerosis (AS). The immunity-related GTPase Irgm1 is involved in orchestrating cellular autophagy and apoptosis. However, the effect of Irgm1 on early AS progression, particularly through alterations in lymphatic function, remains unclear. In this study, we confirmed the protective effect of lymphangiogenesis on early-AS in vivo. Subsequently, an in vivo model of early AS mice with Irgm1 knockdown shows that Irgm1 reduces early atherosclerotic plaque burden by promoting lymphangiogenesis. Given that lymphatic endothelial cell (LEC) autophagy significantly contributes to lymphangiogenesis, Irgm1 may enhance lymphatic circulation by promoting LEC autophagy. Moreover, Irgm1 orchestrates autophagy in LECs by inhibiting mTOR and facilitating nuclear translocation of Tfeb. Collectively, these processes lead to lymphangiogenesis. Thus, this study establishes a link between Irgm1 and early AS, thus revealing a novel mechanism by which Irgm1 exerts an early protective influence on AS within the context of lymphatic circulation. The insights gained from this study have the potential to revolutionize the approach and management of AS onset.
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Affiliation(s)
- Hengxuan Cai
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China
| | - Guanpeng Ma
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China
| | - Zhenming Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China
| | - Guojie Liu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China
| | - Rongzhe Lu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China
| | - Yige Liu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China
| | - Jiaxin Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China
| | - Shanjie Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China
| | - Song Sun
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan 250012, China
| | - E Mingyan
- Department of Thoracic Radiotherapy, Harbin Medical University Cancer Hospital, Nangang District, Harbin, China
| | - Zhaoying Li
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China.
| | - Shaohong Fang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China.
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China; National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150086, China.
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2
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Mende H, Khatri A, Lange C, Poveda-Cuevas SA, Tascher G, Covarrubias-Pinto A, Löhr F, Koschade SE, Dikic I, Münch C, Bremm A, Brunetti L, Brandts CH, Uckelmann H, Dötsch V, Rogov VV, Bhaskara RM, Müller S. An atypical GABARAP binding module drives the pro-autophagic potential of the AML-associated NPM1c variant. Cell Rep 2023; 42:113484. [PMID: 37999976 DOI: 10.1016/j.celrep.2023.113484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 09/22/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
The nucleolar scaffold protein NPM1 is a multifunctional regulator of cellular homeostasis, genome integrity, and stress response. NPM1 mutations, known as NPM1c variants promoting its aberrant cytoplasmic localization, are the most frequent genetic alterations in acute myeloid leukemia (AML). A hallmark of AML cells is their dependency on elevated autophagic flux. Here, we show that NPM1 and NPM1c induce the autophagy-lysosome pathway by activating the master transcription factor TFEB, thereby coordinating the expression of lysosomal proteins and autophagy regulators. Importantly, both NPM1 and NPM1c bind to autophagy modifiers of the GABARAP subfamily through an atypical binding module preserved within its N terminus. The propensity of NPM1c to induce autophagy depends on this module, likely indicating that NPM1c exerts its pro-autophagic activity by direct engagement with GABARAPL1. Our data report a non-canonical binding mode of GABARAP family members that drives the pro-autophagic potential of NPM1c, potentially enabling therapeutic options.
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Affiliation(s)
- Hannah Mende
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Anshu Khatri
- Goethe University Frankfurt, Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Max-von-Laue Street 9, 60438 Frankfurt, Germany
| | - Carolin Lange
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Goethe University Frankfurt, Buchmann Institute for Molecular Life Sciences, Max-von-Laue Street 15, 60438 Frankfurt, Germany
| | - Sergio Alejandro Poveda-Cuevas
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Goethe University Frankfurt, Buchmann Institute for Molecular Life Sciences, Max-von-Laue Street 15, 60438 Frankfurt, Germany
| | - Georg Tascher
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Adriana Covarrubias-Pinto
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Frank Löhr
- Goethe University Frankfurt, Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Max-von-Laue Street 9, 60438 Frankfurt, Germany
| | - Sebastian E Koschade
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Goethe University Frankfurt, University Hospital, Department of Medicine, Hematology/Oncology, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Ivan Dikic
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Christian Münch
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Anja Bremm
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Lorenzo Brunetti
- Marche Polytechnic University, Department of Clinical and Molecular Sciences, Via Tronto 10, 60020 Ancona, Italy
| | - Christian H Brandts
- Goethe University Frankfurt, University Hospital, Department of Medicine, Hematology/Oncology, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Hannah Uckelmann
- Goethe University Frankfurt, University Hospital, Department of Pediatrics, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Volker Dötsch
- Goethe University Frankfurt, Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Max-von-Laue Street 9, 60438 Frankfurt, Germany
| | - Vladimir V Rogov
- Goethe University Frankfurt, Institute of Pharmaceutical Chemistry, Max-von-Laue Street 15, 60438 Frankfurt, Germany; Goethe University Frankfurt, Structural Genomics Consortium, Buchmann Institute for Molecular Life Sciences, Max-von-Laue Street 15, 60438 Frankfurt, Germany
| | - Ramachandra M Bhaskara
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; Goethe University Frankfurt, Buchmann Institute for Molecular Life Sciences, Max-von-Laue Street 15, 60438 Frankfurt, Germany.
| | - Stefan Müller
- Goethe University Frankfurt, Institute of Biochemistry II, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany.
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Fang Q, Jing G, Zhang Y, Wang H, Luo H, Xia Y, Jin Q, Liu Y, Zuo J, Yang C, Zhang X, Liu S, Wu X, Song X. Erbin accelerates TFEB-mediated lysosome biogenesis and autophagy and alleviates sepsis-induced inflammatory responses and organ injuries. J Transl Med 2023; 21:916. [PMID: 38105228 PMCID: PMC10725606 DOI: 10.1186/s12967-023-04796-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023] Open
Abstract
Mounting attention has been focused on defects of the autophagy-lysosomal pathway in sepsis, however, the precise mechanisms governing the autophagy-lysosomal process in sepsis are poorly known. We have previously reported that Erbin deficiency aggravated the inflammatory response and organ injuries caused by sepsis. In the present study, we found that Erbin knockout impaired the autophagy process in both muramyl dipeptide (MDP)-induced bone marrow-derived macrophages (BMDMs) and sepsis mouse liver and lung, as detected by the accumulation of LC3-II and SQSTM1/p62, and autophagosomes. Pretreatment with autophagy inhibitor chloroquine (CQ) further aggravated inflammatory response and organ injuries in vivo and in vitro sepsis model. We also observed that the impaired lysosomal function mediated autophagic blockade, as detected by the decreased expression of ATP6V, cathepsin B (CTSB) and LAMP2 protein. Immunoprecipitation revealed that the C-terminal of Erbin (aa 391-964) interacts with the N-terminal of transcription factor EB (TFEB) (aa 1-247), and affects the stability of TFEB-14-3-3 and TFEB-PPP3CB complexes and the phosphorylation status of TFEB, thereby promote the nucleus translocation of TFEB and the TFEB target genes transcription. Thus, our study suggested that Erbin alleviated sepsis-induced inflammatory responses and organ injuries by rescuing dysfunction of the autophagy-lysosomal pathway through TFEB-14-3-3 and TFEB-PPP3CB pathway.
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Affiliation(s)
- Qing Fang
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Guoqing Jing
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Ying Zhang
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Hongyu Wang
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Huan Luo
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Yun Xia
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Qiyan Jin
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Yuping Liu
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Jing Zuo
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Cheng Yang
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China
| | - Xiaodong Zhang
- College of Life Sciences at, Wuhan University, Wuchang, 299 Bayi Road, Wuhan, 430072, Hubei Province, China
| | - Shi Liu
- College of Life Sciences at, Wuhan University, Wuchang, 299 Bayi Road, Wuhan, 430072, Hubei Province, China
| | - Xiaojing Wu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuchang, 238 Liberation Road, Wuhan, 430060, Hubei Province, China.
| | - Xuemin Song
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuchang, 169 Donghu Road, Wuhan, 430071, Hubei Province, China.
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4
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Sheng Y, Hua H, Yong Y, Zhou L. Identification of Hub Genes and Typing of Tuberculosis Infections Based on Autophagy-Related Genes. Pol J Microbiol 2023; 72:223-238. [PMID: 37725899 PMCID: PMC10561080 DOI: 10.33073/pjm-2023-022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/19/2023] [Indexed: 09/21/2023] Open
Abstract
Tuberculosis (TB) caused by Mycobacterium tuberculosis is one of the leading causes of morbidity and death in humans worldwide. Some autophagy genes associated with TB and some miRNAs regulating TB have been found, but the identification of autophagy-related genes in M. tuberculosis remains to be explored. Forty-seven autophagy-related genes differentially expressed in TB were identified in this study by analysis of TB-related datasets in the Gene Expression Omnibus (GEO) and autophagy-related genes in the Human Autophagy Database. The potential crucial genes affecting TB were found through the protein-protein interaction (PPI) network, and the possible pathways affected by these genes were verified. Analysis of the PPI network of miRNAs associated with M. tuberculosis infection and their target genes revealed that hsa-let-7, hsa-mir-155, hsa-mir-206, hsa-mir-26a, hsa-mir-30a, and hsa-mir-32 may regulate the expression of multiple autophagy-related genes (MAPK8, UVRAG, UKL2, and GABARAPL1) alone or in combination. Subsequently, Cytoscape was utilized to screen the differentially expressed genes related to autophagy. The hub genes (GABARAPL1 and ULK2) affecting TB were identified. Combined with Gene Set Enrichment Analysis (GSEA), the signaling pathways affected by the hub genes were verified. Finally, we divided TB patients into two subgroups based on autophagy-related genes, and the immune microenvironment of patients in different subgroups was significantly different. Our study found two autophagy-related hub genes that could affect TB and divide TB samples into two subgroups. This finding is of great significance for TB treatment and provides new ideas for exploring the pathogenesis of M. tuberculosis.
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Affiliation(s)
- Yunfeng Sheng
- Department of Tuberculosis, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Haibo Hua
- Department of Tuberculosis, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Yong
- Department of Tuberculosis, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lihong Zhou
- Department of Tuberculosis, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine, Hangzhou, China
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5
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Jiang G, Zhang L, Zhao J, Li L, Huang Z, Wang Z. Dynamic Autophagy Map in Mouse Female Germ Cells Throughout the Fetal to Postnatal Life. Reprod Sci 2023; 30:169-180. [PMID: 35501593 DOI: 10.1007/s43032-022-00940-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/08/2022] [Indexed: 01/06/2023]
Abstract
Autophagy plays vital roles in mouse female germ cells, but the potential mechanism is largely unknown. In this study, by interrogating single-cell RNA-seq dataset, we investigated the dynamic expression of autophagy-related genes in seven types of germ cells (mitosis, pre-leptotene, leptotene, zygotene, pachytene, diplotene, and dictyate) and discovered stage-specific autophagy-related genes. Using immunofluorescence (IF) and transmission electron microscopy (TEM), autophagy activity and autophagosome numbers were revealed from mitosis to follicular assembly (E12.5 (embryonic day 12.5) to P5 (postnatal day 5)). Furthermore, single-sample gene set enrichment analysis (ssGSEA) was performed to validate the autophagy kinetics from E12.5 to P5. Our study proved that the mitosis, diplotene, and dictyate female germ cells had relatively higher autophagy activity among the seven subtypes. In summary, our work provided an autophagy map, suggesting that autophagy was complicated in mouse female germ cell development from the fetal to postnatal life, which paved a new insight for deciphering the autophagy regulatory networks for cell-fate transition and female infertility issues like primary ovarian insufficiency (POI).
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Affiliation(s)
- Gurong Jiang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Li Zhang
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Proteomics, Southern Medical University, Guangzhou, 510515, China
| | - Jiexiang Zhao
- Dongguan People's Hospital, Southern Medical University, Dongguan, 523059, China.,Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Lin Li
- Department of Pathophysiology, Guangdong Provincial Key Laboratory of Proteomics, Southern Medical University, Guangzhou, 510515, China
| | - Zhenqin Huang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhijian Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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Varga VB, Keresztes F, Sigmond T, Vellai T, Kovács T. The evolutionary and functional divergence of the Atg8 autophagy protein superfamily. Biol Futur 2022; 73:375-384. [PMID: 35731422 DOI: 10.1007/s42977-022-00123-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 05/28/2022] [Indexed: 01/27/2023]
Abstract
Autophagy is a highly conserved self-degradation process of eukaryotic cells which is required for the effective elimination of damaged and unnecessary cytosolic constituents. Defects in the process can cause the intracellular accumulation of such damages, thereby leading to the senescence and subsequent loss of the affected cell. Defective autophagy hence is implicated in the development of various degenerative processes, including cancer, neurodegenerative diseases, diabetes, tissue atrophy and fibrosis, and immune deficiency, as well as in accelerated aging. The autophagic process is mediated by numerous autophagy-related (ATG) proteins, among which the ATG8/LC3/GABARAP (Microtubule-associated protein 1A/1B-light chain 3/Gammaaminobutyric acid receptor-associated protein) superfamily has a pivotal role in the formation and maturation of autophagosome, a key (macro) autophagic structure (the autophagosome sequesters parts of the cytoplasm which are destined for breakdown). While in the unicellular yeast there is only a single ATG8 protein, metazoan systems usually contain more ATG8 paralogs. ATG8 paralogs generally display tissue-specific expression patterns and their functions are not strictly restricted to autophagy. For example, GABARAP proteins also play a role in intracellular vesicle transport, and, in addition to autophagosome formation, ATG8 also functions in selective autophagy. In this review, we summarize the functional diversity of ATG8/LC3/GABARAP proteins, using tractable genetic models applied in autophagy research.
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Affiliation(s)
- Virginia B Varga
- Department of Genetics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary
| | - Fanni Keresztes
- Department of Genetics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary
| | - Tímea Sigmond
- Department of Genetics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary
| | - Tibor Vellai
- Department of Genetics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary.,ELKH-ELTE Genetics Research Group, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary
| | - Tibor Kovács
- Department of Genetics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary.
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7
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Chen Z, Wu H, Yang J, Li B, Ding J, Cheng S, Bsoul N, Zhang C, Li J, Liu H, Lin D, Gao W. Activating Parkin-dependent mitophagy alleviates oxidative stress, apoptosis, and promotes random-pattern skin flaps survival. Commun Biol 2022; 5:616. [PMID: 35732814 DOI: 10.1038/s42003-022-03556-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 06/01/2022] [Indexed: 11/09/2022] Open
Abstract
The random-pattern skin flap is a crucial technique in reconstructive surgery and flap necrosis caused by ischemia/reperfusion injury is a major postoperative complication. Herein, we investigated the mechanism of mitophagy induced by Melatonin (ML) and its effect on the survival of skin flaps. Our results demonstrated that ML could activate mitophagy, ameliorate oxidative stress and alleviate apoptosis in Tert-Butyl hydroperoxide solution (TBHP)-stimulated human umbilical vein endothelial cells in vitro. Inhibiting ML-induced mitophagy considerably abolished its protective effects. Moreover, knockdown of Parkin by siRNA inhibited ML-induced mitophagy, and subsequently exacerbated oxidative stress and apoptosis. Further study demonstrated that inhibition of AMPK reversed these protective effects of ML and downregulated the expression of TFEB. In the vivo study, ML effectively promoted flap survival by activating mitophagy and subsequently ameliorating oxidative stress and mitigating apoptosis. These results established that ML is a potent agent capable for increasing random-pattern skin flap survival by activating Parkin-dependent mitophagy through the AMPK-TFEB signaling pathway.
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Abstract
Autophagy is a cellular degradative pathway that plays diverse roles in maintaining cellular homeostasis. Cellular stress caused by starvation, organelle damage, or proteotoxic aggregates can increase autophagy, which uses the degradative capacity of lysosomal enzymes to mitigate intracellular stresses. Early studies have shown a role for autophagy in the suppression of tumorigenesis. However, work in genetically engineered mouse models and in vitro cell studies have now shown that autophagy can be either cancer-promoting or inhibiting. Here, we summarize the effects of autophagy on cancer initiation, progression, immune infiltration, and metabolism. We also discuss the efforts to pharmacologically target autophagy in the clinic and highlight future areas for exploration.
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Affiliation(s)
- Ryan C Russell
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada.,Center for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, ON, Canada.,Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada
| | - Kun-Liang Guan
- Department of Pharmacology and Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
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9
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Huang HL, Lee JY, Lo YS, Liu IH, Huang SH, Huang YW, Lee MR, Lee CH, Cheng MH, Lu PL, Wang JY, Yang JM, Chong IW. Whole-blood 3-gene Signature as a Decision Aid for Rifapentine-based TB Preventive Therapy. Clin Infect Dis 2022; 75:743-752. [PMID: 34989801 PMCID: PMC9477448 DOI: 10.1093/cid/ciac003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 12/20/2022] Open
Abstract
Background Systemic drug reaction (SDR) is a major safety concern with weekly rifapentine plus isoniazid for 12 doses (3HP) for latent tuberculosis infection (LTBI). Identifying SDR predictors and at-risk participants before treatment can improve cost-effectiveness of the LTBI program. Methods We prospectively recruited 187 cases receiving 3HP (44 SDRs and 143 non-SDRs). A pilot cohort (8 SDRs and 12 non-SDRs) was selected for generating whole-blood transcriptomic data. By incorporating the hierarchical system biology model and therapy–biomarker pathway approach, candidate genes were selected and evaluated using reverse-transcription quantitative polymerase chain reaction (RT-qPCR). Then, interpretable machine learning models presenting as SHapley Additive exPlanations (SHAP) values were applied for SDR risk prediction. Finally, an independent cohort was used to evaluate the performance of these predictive models. Results Based on the whole-blood transcriptomic profile of the pilot cohort and the RT-qPCR results of 2 SDR and 3 non-SDR samples in the training cohort, 6 genes were selected. According to SHAP values for model construction and validation, a 3-gene model for SDR risk prediction achieved a sensitivity and specificity of 0.972 and 0.947, respectively, under a universal cutoff value for the joint of the training (28 SDRs and 104 non-SDRs) and testing (8 SDRs and 27 non-SDRs) cohorts. It also worked well across different subgroups. Conclusions The prediction model for 3HP-related SDRs serves as a guide for establishing a safe and personalized regimen to foster the implementation of an LTBI program. Additionally, it provides a potential translational value for future studies on drug-related hypersensitivity.
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Affiliation(s)
- Hung-Ling Huang
- Division of Pulmonary and Critical Care Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine; Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jung-Yu Lee
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Yu-Shu Lo
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - I-Hsin Liu
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Sing-Han Huang
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Yu-Wei Huang
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Meng-Rui Lee
- Department of Internal Medicine, National Taiwan University Hospital, Hsinchu Branch, Hsinchu, Taiwan
| | - Chih-Hsin Lee
- Division of Pulmonary Medicine and Pulmonary Research Center, Wanfang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Meng-Hsuan Cheng
- Division of Pulmonary and Critical Care Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine; Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-devices, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Po-Liang Lu
- Department of Internal Medicine; Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Liquid Biopsy and Cohort, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jann-Yuan Wang
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jinn-Moon Yang
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.,partment of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-devices, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Inn-Wen Chong
- Division of Pulmonary and Critical Care Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Internal Medicine; Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Respiratory Therapy, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Joint Appointment Professor, Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
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10
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Chen H, Wang J, Zeng R, Luo Y, Guo K, Wu H, Yang Q, Jiang R, Sha W, Zhuo Z. Development and Validation of a Novel Mitophagy-Related Gene Prognostic Signature for Hepatocellular Carcinoma Based on Immunoscore Classification of Tumor. J Oncol 2021; 2021:5070099. [PMID: 34733329 PMCID: PMC8560278 DOI: 10.1155/2021/5070099] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/03/2021] [Accepted: 10/06/2021] [Indexed: 02/06/2023]
Abstract
Emerging evidence suggested that mitophagy may play an important role in the progression of hepatocellular carcinoma (HCC), whereas the association between mitophagy-related genes and HCC patients' prognosis remains unknown. In this study, we aimed to investigate the potential prognostic values of mitophagy-related genes (MRGs) on HCC patients at the genetic level. According to median immunoscore, we categorized HCC patients from TCGA cohort into two immune score groups, while 39 differential expression MRGs were identified. By using univariate analysis, we screened out 18 survival-associated MRGs, and then, the least absolute shrinkage and selection operator (LASSO) analysis was applied to construct a prognosis model that consisted of 9 MRGs (ATG7, ATG9A, BNIP3L, GABARAPL1, HTRA2, MAP1LC3B2, TFE3, TIGAR, and TOMM70). In our prognostic model, overall survival in the high and low-risk groups was significantly different (P < 0.001), and the respective areas under the curve (AUC) of our prognostic model were 0.686 for 3-year survival in the TCGA cohort and 0.776 for 3-year survival in the ICGC cohort. Moreover, we identified the risk score as the independent factor for predicting the HCC patients' prognosis by using single and multifactor analyses, and a nomogram was also constructed for future clinical application. Further functional analyses showed that the immune status between two risk groups was significantly different. Our findings may provide a novel mitophagy-related gene signature, and these will be better used for prognostic prediction in HCC, thus improving patient outcome.
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Affiliation(s)
- Hao Chen
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Jinghua Wang
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Ruijie Zeng
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Shantou University Medical College, Shantou 515041, China
| | - Yujun Luo
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Kehang Guo
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Huihuan Wu
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Qi Yang
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Rui Jiang
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China
| | - Weihong Sha
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Zewei Zhuo
- Department of Gastroenterology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China
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11
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Wang HQ, Song KY, Feng JZ, Huang SY, Guo XM, Zhang L, Zhang G, Huo YC, Zhang RR, Ma Y, Hu QZ, Qin XY. Caffeine Inhibits Activation of the NLRP3 Inflammasome via Autophagy to Attenuate Microglia-Mediated Neuroinflammation in Experimental Autoimmune Encephalomyelitis. J Mol Neurosci 2021; 72:97-112. [PMID: 34478049 DOI: 10.1007/s12031-021-01894-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/19/2021] [Indexed: 12/19/2022]
Abstract
The activation of microglia is an important cause of central nervous system (CNS) inflammatory cell infiltration and inflammatory demyelination in experimental autoimmune encephalomyelitis (EAE). Furthermore, the proinflammatory response induced by the NLR family pyrin domain containing 3 (NLRP3) inflammasome can be amplified in microglia after NLRP3 inflammasome activation. Autophagy is closely related to the inflammatory response. Caffeine exerts anti-inflammatory and autophagy-stimulating effects, but the specific mechanism remains unclear. This study examined the mechanism underlying the anti-inflammatory effect of caffeine on EAE. In this study, C57BL/6 mice were immunized to induce EAE and treated with caffeine to observe its effect on prognosis. The effects of caffeine on autophagy and inflammation were also analysed in mouse primary microglia (PM) and the BV2 cell line. The data demonstrated that caffeine reduced the clinical score, the infiltration of inflammatory cells, the demyelination level, and the activation of microglia in EAE mice. Furthermore, caffeine increased the LC3-II/LC3-I levels and decreased the NLRP3 and P62 levels in EAE mice, whereas the autophagy inhibitor 3-methylamine (3-MA) blocked these effects. In vitro, caffeine promoted autophagy by suppressing the mechanistic target of rapamycin (mTOR) pathway and inhibited activation of the NLRP3 inflammasome. However, autophagy-related gene 5 (ATG5)-specific siRNA abolished the anti-inflammatory effect of caffeine treatment in PM and BV2 cells. Taken together, these data suggest that caffeine exerts a newly discovered effect on EAE by reducing NLRP3 inflammasome activation via the induction of autophagy in microglia.
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Affiliation(s)
- Hui-Qi Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.,Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Kai-Yi Song
- Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Jin-Zhou Feng
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Si-Yuan Huang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Xiu-Ming Guo
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Lei Zhang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Gang Zhang
- Cerebravascular Disease Department. Number 98, The First People's Hospital of Zunyi, (The third affiliated hospital of Zunyi Medical University), Fenghuang Road, Zunyi, Guizhou Province, 563000, China
| | - Ying-Chao Huo
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Rong-Rong Zhang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Yue Ma
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Qing-Zhe Hu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China
| | - Xin-Yue Qin
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.
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