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Keeley O, Coyne AN. Nuclear and degradative functions of the ESCRT-III pathway: implications for neurodegenerative disease. Nucleus 2024; 15:2349085. [PMID: 38700207 PMCID: PMC11073439 DOI: 10.1080/19491034.2024.2349085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 04/24/2024] [Indexed: 05/05/2024] Open
Abstract
The ESCRT machinery plays a pivotal role in membrane-remodeling events across multiple cellular processes including nuclear envelope repair and reformation, nuclear pore complex surveillance, endolysosomal trafficking, and neuronal pruning. Alterations in ESCRT-III functionality have been associated with neurodegenerative diseases including Frontotemporal Dementia (FTD), Amyotrophic Lateral Sclerosis (ALS), and Alzheimer's Disease (AD). In addition, mutations in specific ESCRT-III proteins have been identified in FTD/ALS. Thus, understanding how disruptions in the fundamental functions of this pathway and its individual protein components in the human central nervous system (CNS) may offer valuable insights into mechanisms underlying neurodegenerative disease pathogenesis and identification of potential therapeutic targets. In this review, we discuss ESCRT components, dynamics, and functions, with a focus on the ESCRT-III pathway. In addition, we explore the implications of altered ESCRT-III function for neurodegeneration with a primary emphasis on nuclear surveillance and endolysosomal trafficking within the CNS.
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Affiliation(s)
- Olivia Keeley
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Brain Science Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Alyssa N. Coyne
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Brain Science Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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2
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Hushmandi K, Saadat SH, Raei M, Aref AR, Reiter RJ, Nabavi N, Taheriazam A, Hashemi M. The science of exosomes: Understanding their formation, capture, and role in cellular communication. Pathol Res Pract 2024; 259:155388. [PMID: 38850846 DOI: 10.1016/j.prp.2024.155388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/06/2024] [Accepted: 06/01/2024] [Indexed: 06/10/2024]
Abstract
Extracellular vesicles (EVs) serve as a crucial method for transferring information among cells, which is vital in multicellular organisms. Among these vesicles, exosomes are notable for their small size, ranging from 20 to 150 nm, and their role in cell-to-cell communication. They carry lipids, proteins, and nucleic acids between cells. The creation of exosomes begins with the inward budding of the cell membrane, which then encapsulates various macromolecules as cargo. Once filled, exosomes are released into the extracellular space and taken up by target cells via endocytosis and similar processes. The composition of exosomal cargo varies, encompassing diverse macromolecules with specific functions. Because of their significant roles, exosomes have been isolated from various cell types, including cancer cells, endothelial cells, macrophages, and mesenchymal cells, with the aim of harnessing them for therapeutic applications. Exosomes influence cellular metabolism, and regulate lipid, glucose, and glutamine pathways. Their role in pathogenesis is determined by their cargo, which can manipulate processes such as apoptosis, proliferation, inflammation, migration, and other molecular pathways in recipient cells. Non-coding RNA transcripts, a common type of cargo, play a pivotal role in regulating disease progression. Exosomes are implicated in numerous biological and pathological processes, including inflammation, cancer, cardiovascular diseases, diabetes, wound healing, and ischemic-reperfusion injury. As a result, they hold significant potential in the treatment of both cancerous and non-cancerous conditions.
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Affiliation(s)
- Kiavash Hushmandi
- Nephrology and Urology Research Center, Clinical Sciences Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Seyed Hassan Saadat
- Nephrology and Urology Research Center, Clinical Sciences Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mehdi Raei
- Health Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran; Department of Epidemiology and Biostatistics, School of Health, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Amir Reza Aref
- Department of Translational Sciences, Xsphera Biosciences Inc. Boston, MA, USA; Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, Long School of Medicine, San Antonio, TX, USA
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6, Vancouver, BC, Canada
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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3
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Lv LX, Gao J, Wang H, Zhao XF, Wang JX. Infection and intracellular transport of white spot syndrome virus require the ESCRT machinery in shrimp. J Virol 2024:e0043324. [PMID: 38888346 DOI: 10.1128/jvi.00433-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 05/23/2024] [Indexed: 06/20/2024] Open
Abstract
The cellular endosomal sorting complex required for transport (ESCRT) system comprises five distinct components and is involved in many different physiological processes. Recent studies have shown that different viruses rely upon the host ESCRT system for viral infection. However, whether this system is involved in white spot syndrome virus (WSSV) infection remains unclear. Here, we identified 24 homologs of ESCRT subunits in kuruma shrimp, Marsupenaeus japonicus, and found that some key components were strongly upregulated in shrimp after WSSV infection. Knockdown of key components of the ESCRT system using RNA interference inhibited virus replication, suggesting that the ESCRT system is beneficial for WSSV infection. We further focused on TSG101, a crucial member of the ESCRT-I family that plays a central role in recognizing cargo and activating the ESCRT-II and ESCRT-III complexes. TSG101 colocalized with WSSV in hemocytes. The addition of N16 (a TSG101 inhibitor) markedly decreased WSSV replication. TSG101 and ALIX of the ESCRT system interact with WSSV envelope proteins. The host proteins TSG101, RAB5, and RAB7, the viral protein VP28, and DNA were detected in endosomes isolated from hemocytes of WSSV-infected shrimp. Knockdown of Rab5 and Rab7 expression reduced viral replication. Taken together, these results suggest that the ESCRT system is hijacked by WSSV for transport through the early to late endosome pathway. Our work identified a novel requirement for the intracellular trafficking and infection of WSSV, and provided novel therapeutic targets for the prevention and control of WSSV in shrimp aquaculture. IMPORTANCE Viruses utilize the ESCRT machinery in a variety of strategies for their replication and infection. This study revealed that the interaction of ESCRT complexes with WSSV envelope proteins plays a crucial role in WSSV infection in shrimp. The ESCRT system is conserved in the shrimp Marsupenaeus japonicus, and 24 homologs of the ESCRT system were identified in the shrimp. WSSV exploits the ESCRT system for transport and propagation via the interaction of envelope proteins with host TSG101 and ALIX in an endosome pathway-dependent manner. Understanding the underlying mechanisms of WSSV infection is important for disease control and breeding in shrimp aquaculture.
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Affiliation(s)
- Li-Xia Lv
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Jie Gao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Hao Wang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Xiao-Fan Zhao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Jin-Xing Wang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
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4
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Alimohamadi H, Luo EWC, Gupta S, de Anda J, Yang R, Mandal T, Wong GCL. Comparing Multifunctional Viral and Eukaryotic Proteins for Generating Scission Necks in Membranes. ACS NANO 2024; 18:15545-15556. [PMID: 38838261 DOI: 10.1021/acsnano.4c00277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Deterministic formation of membrane scission necks by protein machinery with multiplexed functions is critical in biology. A microbial example is M2 viroporin, a proton pump from the influenza A virus that is multiplexed with membrane remodeling activity to induce budding and scission in the host membrane during viral maturation. In comparison, the dynamin family constitutes a class of eukaryotic proteins implicated in mitochondrial fission, as well as various budding and endocytosis pathways. In the case of Dnm1, the mitochondrial fission protein in yeast, the membrane remodeling activity is multiplexed with mechanoenzyme activity to create fission necks. It is not clear why these functions are combined in these scission processes, which occur in drastically different compositions and solution conditions. In general, direct experimental access to changing neck sizes induced by individual proteins or peptide fragments is challenging due to the nanoscale dimensions and influence of thermal fluctuations. Here, we use a mechanical model to estimate the size of scission necks by leveraging small-angle X-ray scattering structural data of protein-lipid systems under different conditions. The influence of interfacial tension, lipid composition, and membrane budding morphology on the size of the induced scission necks is systematically investigated using our data and molecular dynamic simulations. We find that the M2 budding protein from the influenza A virus has robust pH-dependent membrane activity that induces nanoscopic necks within the range of spontaneous hemifission for a broad range of lipid compositions. In contrast, the sizes of scission necks generated by mitochondrial fission proteins strongly depend on lipid composition, which suggests a role for mechanical constriction.
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Affiliation(s)
- Haleh Alimohamadi
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90025, United States
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Elizabeth Wei-Chia Luo
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90025, United States
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Shivam Gupta
- Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Jaime de Anda
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90025, United States
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Rena Yang
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90025, United States
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Taraknath Mandal
- Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Gerard C L Wong
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90025, United States
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
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5
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Velez-Brochero M, Behera P, Afreen KS, Odle A, Rajsbaum R. Ubiquitination in viral entry and replication: Mechanisms and implications. Adv Virus Res 2024; 119:1-38. [PMID: 38897707 DOI: 10.1016/bs.aivir.2024.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
The ubiquitination process is a reversible posttranslational modification involved in many essential cellular functions, such as innate immunity, cell signaling, trafficking, protein stability, and protein degradation. Viruses can use the ubiquitin system to efficiently enter host cells, replicate and evade host immunity, ultimately enhancing viral pathogenesis. Emerging evidence indicates that enveloped viruses can carry free (unanchored) ubiquitin or covalently ubiquitinated viral structural proteins that can increase the efficiency of viral entry into host cells. Furthermore, viruses continuously evolve and adapt to take advantage of the host ubiquitin machinery, highlighting its importance during virus infection. This review discusses the battle between viruses and hosts, focusing on how viruses hijack the ubiquitination process at different steps of the replication cycle, with a specific emphasis on viral entry. We discuss how ubiquitination of viral proteins may affect tropism and explore emerging therapeutics strategies targeting the ubiquitin system for antiviral drug discovery.
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Affiliation(s)
- Maria Velez-Brochero
- Center for Virus-Host-Innate Immunity and Department of Medicine, Rutgers Biomedical and Health Sciences, Institute for Infectious and Inflammatory Diseases, Rutgers University, Newark, NJ, United States
| | - Padmanava Behera
- Center for Virus-Host-Innate Immunity and Department of Medicine, Rutgers Biomedical and Health Sciences, Institute for Infectious and Inflammatory Diseases, Rutgers University, Newark, NJ, United States
| | - Kazi Sabrina Afreen
- Center for Virus-Host-Innate Immunity and Department of Medicine, Rutgers Biomedical and Health Sciences, Institute for Infectious and Inflammatory Diseases, Rutgers University, Newark, NJ, United States
| | - Abby Odle
- Center for Virus-Host-Innate Immunity and Department of Medicine, Rutgers Biomedical and Health Sciences, Institute for Infectious and Inflammatory Diseases, Rutgers University, Newark, NJ, United States
| | - Ricardo Rajsbaum
- Center for Virus-Host-Innate Immunity and Department of Medicine, Rutgers Biomedical and Health Sciences, Institute for Infectious and Inflammatory Diseases, Rutgers University, Newark, NJ, United States.
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Wardhani K, Levina A, Grau GER, Lay PA. Fluorescent, phosphorescent, magnetic resonance contrast and radioactive tracer labelling of extracellular vesicles. Chem Soc Rev 2024. [PMID: 38828885 DOI: 10.1039/d2cs00238h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
This review focusses on the significance of fluorescent, phosphorescent labelling and tracking of extracellular vesicles (EVs) for unravelling their biology, pathophysiology, and potential diagnostic and therapeutic uses. Various labeling strategies, such as lipid membrane, surface protein, luminal, nucleic acid, radionuclide, quantum dot labels, and metal complex-based stains, are evaluated for visualizing and characterizing EVs. Direct labelling with fluorescent lipophilic dyes is simple but generally lacks specificity, while surface protein labelling offers selectivity but may affect EV-cell interactions. Luminal and nucleic acid labelling strategies have their own advantages and challenges. Each labelling approach has strengths and weaknesses, which require a suitable probe and technique based on research goals, but new tetranuclear polypyridylruthenium(II) complexes as phosphorescent probes have strong phosphorescence, selective staining, and stability. Future research should prioritize the design of novel fluorescent probes and labelling platforms that can significantly enhance the efficiency, accuracy, and specificity of EV labeling, while preserving their composition and functionality. It is crucial to reduce false positive signals and explore the potential of multimodal imaging techniques to gain comprehensive insights into EVs.
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Affiliation(s)
- Kartika Wardhani
- School of Chemistry, The University of Sydney, Sydney, New South Wales, 2006, Australia.
- Biochemistry and Biotechnology (B-TEK) Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
| | - Aviva Levina
- School of Chemistry, The University of Sydney, Sydney, New South Wales, 2006, Australia.
| | - Georges E R Grau
- Sydney Nano, The University of Sydney, Sydney, New South Wales, 2006, Australia
- Sydney Cancer Network, The University of Sydney, Sydney, New South Wales, 2006, Australia
- Marie Bashir Institute, The University of Sydney, Sydney, New South Wales, 2006, Australia
- Vascular Immunology Unit, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Peter A Lay
- School of Chemistry, The University of Sydney, Sydney, New South Wales, 2006, Australia.
- Sydney Nano, The University of Sydney, Sydney, New South Wales, 2006, Australia
- Sydney Cancer Network, The University of Sydney, Sydney, New South Wales, 2006, Australia
- Marie Bashir Institute, The University of Sydney, Sydney, New South Wales, 2006, Australia
- Sydney Analytical, The University of Sydney, Sydney, New South Wales, 2006, Australia
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7
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Hu Y, Zang W, Feng Y, Mao Q, Chen J, Zhu Y, Xue W. mir-605-3p prevents liver premetastatic niche formation by inhibiting angiogenesis via decreasing exosomal nos3 release in gastric cancer. Cancer Cell Int 2024; 24:184. [PMID: 38802855 PMCID: PMC11131241 DOI: 10.1186/s12935-024-03359-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 05/06/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Cancer-induced pre-metastatic niches (PMNs) play a decisive role in promoting metastasis by facilitating angiogenesis in distant sites. Evidence accumulates suggesting that microRNAs (miRNAs) exert significant influence on angiogenesis during PMN formation, yet their specific roles and regulatory mechanisms in gastric cancer (GC) remain underexplored. METHODS miR-605-3p was identified through miRNA-seq and validated by qRT-PCR. Its correlation with the clinicopathological characteristics and prognosis was analyzed in GC. Functional assays were performed to examine angiogenesis both in vitro and in vivo. The related molecular mechanisms were elucidated using RNA-seq, immunofluorescence, transmission electron microscopy, nanoparticle tracking analysis, enzyme-linked immunosorbent assay, luciferase reporter assays and bioinformatics analysis. RESULTS miR-605-3p was screened as a candidate miRNA that may regulate angiogenesis in GC. Low expression of miR-605-3p is associated with shorter overall survival and disease-free survival in GC. miR-605-3p-mediated GC-secreted exosomes regulate angiogenesis by regulating exosomal nitric oxide synthase 3 (NOS3) derived from GC cells. Mechanistically, miR-605-3p reduced the secretion of exosomes by inhibiting vesicle-associated membrane protein 3 (VAMP3) expression and affects the transport of multivesicular bodies to the GC cell membrane. At the same time, miR-605-3p reduces NOS3 levels in exosomes by inhibiting the expression of intracellular NOS3. Upon uptake of GC cell-derived exosomal NOS3, human umbilical vein endothelial cells exhibited increased nitric oxide levels, which induced angiogenesis, established liver PMN and ultimately promoted the occurrence of liver metastasis. Furthermore, a high level of plasma exosomal NOS3 was clinically associated with metastasis in GC patients. CONCLUSIONS miR-605-3p may play a pivotal role in regulating VAMP3-mediated secretion of exosomal NOS3, thereby affecting the formation of GC PMN and thus inhibiting GC metastasis.
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Affiliation(s)
- Yilin Hu
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, Jiangsu, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Weijie Zang
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, Jiangsu, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Ying Feng
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, Jiangsu, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Qinsheng Mao
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, Jiangsu, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Junjie Chen
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China
| | - Yizhun Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, School of Pharmacy, Macau University of Science and Technology, Macau, 999078, China.
| | - Wanjiang Xue
- Department of Gastrointestinal Surgery, Affliated Hospital of Nantong University, Medical School of Nantong University, 20 Xisi Street, Nantong, Jiangsu, 226001, China.
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, China.
- Nantong Key Laboratory of Gastrointestinal Oncology, Nantong, 226001, China.
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Liu M, Liu Y, Song T, Yang L, Qi L, Zhang YZ, Wang Y, Shen QT. Three-dimensional architecture of ESCRT-III flat spirals on the membrane. Proc Natl Acad Sci U S A 2024; 121:e2319115121. [PMID: 38709931 PMCID: PMC11098116 DOI: 10.1073/pnas.2319115121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 04/01/2024] [Indexed: 05/08/2024] Open
Abstract
The endosomal sorting complexes required for transport (ESCRTs) are responsible for membrane remodeling in many cellular processes, such as multivesicular body biogenesis, viral budding, and cytokinetic abscission. ESCRT-III, the most abundant ESCRT subunit, assembles into flat spirals as the primed state, essential to initiate membrane invagination. However, the three-dimensional architecture of ESCRT-III flat spirals remained vague for decades due to highly curved filaments with a small diameter and a single preferred orientation on the membrane. Here, we unveiled that yeast Snf7, a component of ESCRT-III, forms flat spirals on the lipid monolayers using cryogenic electron microscopy. We developed a geometry-constrained Euler angle-assigned reconstruction strategy and obtained moderate-resolution structures of Snf7 flat spirals with varying curvatures. Our analyses showed that Snf7 subunits recline on the membrane with N-terminal motifs α0 as anchors, adopt an open state with fused α2/3 helices, and bend α2/3 gradually from the outer to inner parts of flat spirals. In all, we provide the orientation and conformations of ESCRT-III flat spirals on the membrane and unveil the underlying assembly mechanism, which will serve as the initial step in understanding how ESCRTs drive membrane abscission.
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Affiliation(s)
- Mingdong Liu
- School of Life Sciences, Department of Chemical Biology, Southern University of Science and Technology, Shenzhen518055, China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao266237, China
- Institute for Biological Electron Microscopy, Southern University of Science and Technology, Shenzhen518055, China
- iHuman Institute and School of Life Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Yunhui Liu
- Institute for Biological Electron Microscopy, Southern University of Science and Technology, Shenzhen518055, China
| | - Tiefeng Song
- College of Life Sciences, Zhejiang University, Hangzhou310058, China
- The Provincial International Science and Technology Cooperation Base on Engineering Biology, International Campus of Zhejiang University, Haining314400, China
| | - Liuyan Yang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao266237, China
| | - Lei Qi
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao266237, China
- Biomedical Research Center for Structural Analysis, Shandong University, Jinan250012, China
| | - Yu-Zhong Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao266237, China
| | - Yong Wang
- College of Life Sciences, Zhejiang University, Hangzhou310058, China
- The Provincial International Science and Technology Cooperation Base on Engineering Biology, International Campus of Zhejiang University, Haining314400, China
| | - Qing-Tao Shen
- School of Life Sciences, Department of Chemical Biology, Southern University of Science and Technology, Shenzhen518055, China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao266237, China
- Institute for Biological Electron Microscopy, Southern University of Science and Technology, Shenzhen518055, China
- iHuman Institute and School of Life Science and Technology, ShanghaiTech University, Shanghai201210, China
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9
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Wang X, Han S, Liang J, Xu C, Cao R, Liu S, Luan Y, Gu Y, Han P. Essential role of Alix in regulating cardiomyocyte exosome biogenesis under physiological and stress conditions. J Mol Cell Cardiol 2024; 190:35-47. [PMID: 38593639 DOI: 10.1016/j.yjmcc.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 03/04/2024] [Accepted: 04/02/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Exosomes released by cardiomyocytes are essential mediators of intercellular communications within the heart, and various exosomal proteins and miRNAs are associated with cardiovascular diseases. However, whether the endosomal sorting complex required for transport (ESCRT) and its key component Alix is required for exosome biogenesis within cardiomyocyte remains poorly understood. METHODS Super-resolution imaging was performed to investigate the subcellular location of Alix and multivesicular body (MVB) in primary cardiomyocytes. Cardiomyocyte-specific Alix-knockout mice were generated using AAV9/CRISPR/Cas9-mediated in vivo gene editing. A stable Alix-knockdown H9c2 cardiomyocyte line was constructed through lentiviral-mediated delivery of short hairpin RNA. In order to determine the role of Alix in controlling exosome biogenesis, exosomes from cardiomyocyte-specific Alix-knockout mice plasma and Alix-knockdown H9c2 culture medium were isolated and examined by western blot, NTA analysis and transmission electron microscopy. Biochemical and immunofluorescence analysis were performed to determine the role of ESCRT machinery in regulating MVB formation. Lastly, transverse aortic constriction (TAC)-induced cardiac pressure overload model was established to further explore the role of Alix-mediated exosome biogenesis under stress conditions. RESULTS A significant proportion of Alix localized to the MVB membrane within cardiomyocytes. Genetic deletion of Alix in murine heart resulted in a reduction of plasma exosome content without affecting cardiac structure or contractile function. Consistently, the downregulation of Alix in H9c2 cardiomyocyte line also suppressed the biogenesis of exosomes. We found the defective ESCRT machinery and suppressed MVB formation upon Alix depletion caused compromised exosome biogenesis. Remarkably, TAC-induced cardiac pressure overload led to increased Alix, MVB levels, and elevated plasma exosome content, which could be totally abolished by Alix deletion. CONCLUSION These results establish Alix as an essential and stress-sensitive regulator of cardiac exosome biogenesis and the findings may yield valuable therapeutic implications.
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Affiliation(s)
- Xinjian Wang
- Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, Zhejiang, China; Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, Zhejiang, China
| | - Shuxian Han
- Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, Zhejiang, China; Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, Zhejiang, China
| | - Jinxiu Liang
- Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, Zhejiang, China; Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, Zhejiang, China
| | - Chen Xu
- Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, Zhejiang, China; Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, Zhejiang, China
| | - Ranran Cao
- Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, Zhejiang, China; Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, Zhejiang, China
| | - Shuoyang Liu
- Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, Zhejiang, China; Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, Zhejiang, China
| | - Yi Luan
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, School of Medicine, Hangzhou, Zhejiang 310016, China
| | - Ying Gu
- Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, Zhejiang, China; Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, Zhejiang, China
| | - Peidong Han
- Center for Genetic Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, Zhejiang, China; Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, Zhejiang, China.
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Panagopoulos I, Andersen K, Stavseth V, Torkildsen S, Heim S, Tandsæther MR. Germline MYOF1::WNK4 and VPS25::MYOF1 Chimeras Generated by the Constitutional Translocation t(17;19)(q21;p13) in Two Siblings With Myelodysplastic Syndrome. Cancer Genomics Proteomics 2024; 21:272-284. [PMID: 38670586 PMCID: PMC11059592 DOI: 10.21873/cgp.20446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND/AIM Constitutional chromosomal aberrations are rare in hematologic malignancies and their pathogenetic role is mostly poorly understood. We present a comprehensive molecular characterization of a novel constitutional chromosomal translocation found in two siblings - sisters - diagnosed with myelodysplastic syndrome (MDS). MATERIALS AND METHODS Bone marrow and blood cells from the two patients were examined using G-banding, RNA sequencing, PCR, and Sanger sequencing. RESULTS We identified a balanced t(17;19)(q21;p13) translocation in both siblings' bone marrow, blood cells, and phytohemagglutinin-stimulated lymphocytes. The translocation generated a MYO1F::WNK4 chimera on the der(19)t(17;19), encoding a chimeric serine/threonine kinase, and a VPS25::MYO1F on the der(17), potentially resulting in an aberrant VPS25 protein. CONCLUSION The t(17;19)(q21;p13) translocation found in the two sisters probably predisposed them to myelodysplasia. How the MYO1F::WNK4 and/or VPS25::MYO1F chimeras, perhaps especially MYO1F::WNK4 that encodes a chimeric serine/threonine kinase, played a role in MDS pathogenesis, remains incompletely understood.
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Affiliation(s)
- Ioannis Panagopoulos
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway;
| | - Kristin Andersen
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Vidar Stavseth
- Department of Haematology, Levanger Hospital, Levanger, Norway
| | - Synne Torkildsen
- Department of Haematology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Sverre Heim
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
- Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Maren Randi Tandsæther
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
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Xu C, Zhang G, Wang X, Huang X, Zhang J, Han S, Wang J, Hall DD, Xu R, He F, Chang X, Wang F, Xie W, Wu Z, Song LS, Han P. Ptpn23 Controls Cardiac T-Tubule Patterning by Promoting the Assembly of Dystrophin-Glycoprotein Complex. Circulation 2024; 149:1375-1390. [PMID: 38214189 PMCID: PMC11039371 DOI: 10.1161/circulationaha.123.065767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 12/14/2023] [Indexed: 01/13/2024]
Abstract
BACKGROUND Cardiac transverse tubules (T-tubules) are anchored to sarcomeric Z-discs by costameres to establish a regular spaced pattern. One of the major components of costameres is the dystrophin-glycoprotein complex (DGC). Nevertheless, how the assembly of the DGC coordinates with the formation and maintenance of T-tubules under physiological and pathological conditions remains unclear. METHODS Given the known role of Ptpn23 (protein tyrosine phosphatase, nonreceptor type 23) in regulating membrane deformation, its expression in patients with dilated cardiomyopathy was determined. Taking advantage of Cre/Loxp, CRISPR/Cas9, and adeno-associated virus 9 (AAV9)-mediated in vivo gene editing, we generated cardiomyocyte-specific Ptpn23 and Actn2 (α-actinin-2, a major component of Z-discs) knockout mice. We also perturbed the DGC by using dystrophin global knockout mice (DmdE4*). MM 4-64 and Di-8-ANEPPS staining, Cav3 immunofluorescence, and transmission electron microscopy were performed to determine T-tubule structure in isolated cells and intact hearts. In addition, the assembly of the DGC with Ptpn23 and dystrophin loss of function was determined by glycerol-gradient fractionation and SDS-PAGE analysis. RESULTS The expression level of Ptpn23 was reduced in failing hearts from dilated cardiomyopathy patients and mice. Genetic deletion of Ptpn23 resulted in disorganized T-tubules with enlarged diameters and progressive dilated cardiomyopathy without affecting sarcomere organization. AAV9-mediated mosaic somatic mutagenesis further indicated a cell-autonomous role of Ptpn23 in regulating T-tubule formation. Genetic and biochemical analyses showed that Ptpn23 was essential for the integrity of costameres, which anchor the T-tubule membrane to Z-discs, through interactions with α-actinin and dystrophin. Deletion of α-actinin altered the subcellular localization of Ptpn23 and DGCs. In addition, genetic inactivation of dystrophin caused similar T-tubule defects to Ptpn23 loss-of-function without affecting Ptpn23 localization at Z-discs. Last, inducible Ptpn23 knockout at 1 month of age showed Ptpn23 is also required for the maintenance of T-tubules in adult cardiomyocytes. CONCLUSIONS Ptpn23 is essential for cardiac T-tubule formation and maintenance along Z-discs. During postnatal heart development, Ptpn23 interacts with sarcomeric α-actinin and coordinates the assembly of the DGC at costameres to sculpt T-tubule spatial patterning and morphology.
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Affiliation(s)
- Chen Xu
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
| | - Ge Zhang
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
| | - Xinjian Wang
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
| | - Xiaozhi Huang
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
| | - Jiayin Zhang
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
| | - Shuxian Han
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
| | - Jinxi Wang
- Department of Internal Medicine, Abboud Cardiovascular Research Center, Carver College of Medicine, University of Iowa, Iowa City (J.W., D.D.H., L.-S.S.)
| | - Duane D Hall
- Department of Internal Medicine, Abboud Cardiovascular Research Center, Carver College of Medicine, University of Iowa, Iowa City (J.W., D.D.H., L.-S.S.)
| | - Ruoqing Xu
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
| | - Feng He
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
| | - Xing Chang
- Research Center for Industries of the Future, Westlake University, Hangzhou, China (X.C.)
| | - Fudi Wang
- School of Public Health, State Key Laboratory of Experimental Hematology (F.W.), Zhejiang University School of Medicine, Hangzhou, China
| | - Wenjun Xie
- Department of Cardiology, First Affiliated Hospital of Xi'an Jiaotong University, China (W.X.)
| | - Zhichao Wu
- Department of Thoracic Surgery, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, China (Z.W.)
- Department of Cardiovascular Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China (Z.W.)
| | - Long-Sheng Song
- Department of Internal Medicine, Abboud Cardiovascular Research Center, Carver College of Medicine, University of Iowa, Iowa City (J.W., D.D.H., L.-S.S.)
| | - Peidong Han
- Center for Genetic Medicine, The Fourth Affiliated Hospital (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.), Zhejiang University School of Medicine, Hangzhou, China
- Institute of Genetics, Zhejiang University International School of Medicine, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
- Zhejiang Provincial Key Laboratory of Genetic & Developmental Disorders, Hangzhou, China (C.X., G.Z., X.W., X.H., J.Z., S.H., R.X., F.H., P.H.)
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12
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Yue Y, Dai W, Wei Y, Cao S, Liao S, Li A, Liu P, Lin J, Zeng H. Unlocking the potential of exosomes: a breakthrough in the theranosis of degenerative orthopaedic diseases. Front Bioeng Biotechnol 2024; 12:1377142. [PMID: 38699435 PMCID: PMC11064847 DOI: 10.3389/fbioe.2024.1377142] [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: 01/26/2024] [Accepted: 04/01/2024] [Indexed: 05/05/2024] Open
Abstract
Degenerative orthopaedic diseases pose a notable worldwide public health issue attributable to the global aging population. Conventional medical approaches, encompassing physical therapy, pharmaceutical interventions, and surgical methods, face obstacles in halting or reversing the degenerative process. In recent times, exosome-based therapy has gained widespread acceptance and popularity as an effective treatment for degenerative orthopaedic diseases. This therapeutic approach holds the potential for "cell-free" tissue regeneration. Exosomes, membranous vesicles resulting from the fusion of intracellular multivesicles with the cell membrane, are released into the extracellular matrix. Addressing challenges such as the rapid elimination of natural exosomes in vivo and the limitation of drug concentration can be effectively achieved through various strategies, including engineering modification, gene overexpression modification, and biomaterial binding. This review provides a concise overview of the source, classification, and preparation methods of exosomes, followed by an in-depth analysis of their functions and potential applications. Furthermore, the review explores various strategies for utilizing exosomes in the treatment of degenerative orthopaedic diseases, encompassing engineering modification, gene overexpression, and biomaterial binding. The primary objective is to provide a fresh viewpoint on the utilization of exosomes in addressing bone degenerative conditions and to support the practical application of exosomes in the theranosis of degenerative orthopaedic diseases.
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Affiliation(s)
- Yaohang Yue
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Wei Dai
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Yihao Wei
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Siyang Cao
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Shuai Liao
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Aikang Li
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Peng Liu
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Jianjing Lin
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Hui Zeng
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- National and Local Joint Engineering Research Centre of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Key Laboratory of Orthopaedic Diseases and Biomaterials Research, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Shenzhen Second People’s Hospital, Shenzhen, Guangdong, China
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13
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Swords SB, Jia N, Norris A, Modi J, Cai Q, Grant BD. A conserved requirement for RME-8/DNAJC13 in neuronal autophagic lysosome reformation. Autophagy 2024; 20:792-808. [PMID: 37942902 PMCID: PMC11062384 DOI: 10.1080/15548627.2023.2269028] [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: 03/09/2023] [Accepted: 10/02/2023] [Indexed: 11/10/2023] Open
Abstract
Autophagosomes fuse with lysosomes, forming autolysosomes that degrade engulfed cargo. To maintain lysosomal capacity, autophagic lysosome reformation (ALR) must regenerate lysosomes from autolysosomes using a membrane tubule-based process. Maintaining lysosomal capacity is required to maintain cellular health, especially in neurons where lysosomal dysfunction has been repeatedly implicated in neurodegenerative disease. The DNA-J domain HSC70 co-chaperone RME-8/DNAJC13 has been linked to endosomal coat protein regulation and to neurological disease. We report new analysis of the requirements for the RME-8/DNAJC13 protein in neurons, focusing on intact C. elegans mechanosensory neurons, and primary mouse cortical neurons in culture. Loss of RME-8/DNAJC13 in both systems results in accumulation of grossly elongated autolysosomal tubules. Further C. elegans analysis revealed a similar autolysosome tubule accumulation defect in mutants known to be required for ALR in mammals, including mutants lacking bec-1/BECN1/Beclin1 and vps-15/PIK3R4/p150 that regulate the class III phosphatidylinositol 3-kinase (PtdIns3K) VPS-34, and dyn-1/dynamin that severs ALR tubules. Clathrin is also an important ALR regulator implicated in autolysosome tubule formation and release. In C. elegans we found that loss of RME-8 causes severe depletion of clathrin from neuronal autolysosomes, a phenotype shared with bec-1 and vps-15 mutants. We conclude that RME-8/DNAJC13 plays a previously unrecognized role in ALR, likely affecting autolysosome tubule severing. Additionally, in both systems, loss of RME-8/DNAJC13 reduced macroautophagic/autophagic flux, suggesting feedback regulation from ALR to autophagy. Our results connecting RME-8/DNAJC13 to ALR and autophagy provide a potential mechanism by which RME-8/DNAJC13 could influence neuronal health and the progression of neurodegenerative disease.Abbreviation: ALR, autophagic lysosome reformation; ATG-13/EPG-1, AuTophaGy (yeast Atg homolog)-13; ATG-18, AuTophaGy (yeast Atg homolog)-18; AV, autophagic vacuole; CLIC-1, Clathrin Light Chain-1; EPG-3, Ectopic P Granules-3; EPG-6, Ectopic P Granules-6; LGG-1, LC3, GABARAP and GATE-16 family-1; MAP1LC3/LC3, microtubule-associated protein 1 light chain 3; PD, Parkinson disease; PtdIns3P, phosphatidylinositol-3-phosphate; PtdIns(4,5)P2, phosphatidylinositol-4,5-bisphosphate; RME-8, Receptor Mediated Endocytosis-8; SNX-1, Sorting NeXin-1; VPS-34, related to yeast Vacuolar Protein Sorting factor-34.
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Affiliation(s)
- Sierra B. Swords
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ, USA
| | - Nuo Jia
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, USA
| | - Anne Norris
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ, USA
| | - Jil Modi
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ, USA
| | - Qian Cai
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, USA
| | - Barth D. Grant
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ, USA
- Center for Lipid Research, New Brunswick, NJ, USA
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Nair S, Razo-Azamar M, Jayabalan N, Dalgaard LT, Palacios-González B, Sørensen A, Kampmann U, Handberg A, Carrion F, Salomon C. Advances in extracellular vesicles as mediators of cell-to-cell communication in pregnancy. Cytokine Growth Factor Rev 2024; 76:86-98. [PMID: 38233286 DOI: 10.1016/j.cytogfr.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 12/27/2023] [Indexed: 01/19/2024]
Abstract
Cell-to-cell communication mediated by Extracellular Vesicles (EVs) is a novel and emerging area of research, especially during pregnancy, in which placenta derived EVs can facilitate the feto-maternal communication. EVs comprise a heterogeneous group of vesicle sub-populations with diverse physical and biochemical characteristics and originate by specific biogenesis mechanisms. EVs transfer molecular cargo (including proteins, nucleic acids, and lipids) between cells and are critical mediators of cell communication. There is growing interest among researchers to explore into the molecular cargo of EVs and their functions in a physiological and pathological context. For example, inflammatory mediators such as cytokines are shown to be released in EVs and EVs derived from immune cells play key roles in mediating the immune response as well as immunoregulatory pathways. Pregnancy complications such as gestational diabetes mellitus, preeclampsia, intrauterine growth restriction and preterm birth are associated with altered levels of circulating EVs, with differential EV cargo and bioactivity in target cells. This implicates the intriguing roles of EVs in reprogramming the maternal physiology during pregnancy. Moreover, the capacity of EVs to carry bioactive molecules makes them a promising tool for biomarker development and targeted therapies in pregnancy complications. This review summarizes the physiological and pathological roles played by EVs in pregnancy and pregnancy-related disorders and describes the potential of EVs to be translated into clinical applications in the diagnosis and treatment of pregnancy complications.
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Affiliation(s)
- Soumyalekshmi Nair
- Translational Extracellular Vesicles in Obstetrics and Gynae-Oncology Group, University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4029, Australia.
| | - Melissa Razo-Azamar
- Translational Extracellular Vesicles in Obstetrics and Gynae-Oncology Group, University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4029, Australia; Laboratorio de Envejecimiento Saludable del Instituto Nacional de Medicina Genómica (INMEGEN) en el Centro de Investigación sobre Envejecimiento (CIE-CINVESTAV Sede Sur), CDMX, 14330, Mexico
| | - Nanthini Jayabalan
- Translational Extracellular Vesicles in Obstetrics and Gynae-Oncology Group, University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4029, Australia
| | | | - Berenice Palacios-González
- Laboratorio de Envejecimiento Saludable del Instituto Nacional de Medicina Genómica (INMEGEN) en el Centro de Investigación sobre Envejecimiento (CIE-CINVESTAV Sede Sur), CDMX, 14330, Mexico
| | - Anne Sørensen
- Department of Obstetrics and Gynecology, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Ulla Kampmann
- Steno Diabetes Center Aarhus, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Denmark
| | - Aase Handberg
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark; Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark
| | - Flavio Carrion
- Departamento de Investigación, Postgrado y Educación Continua (DIPEC), Facultad de Ciencias de la Salud, Universidad del Alba, Santiago, Chile
| | - Carlos Salomon
- Translational Extracellular Vesicles in Obstetrics and Gynae-Oncology Group, University of Queensland Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4029, Australia; Departamento de Investigación, Postgrado y Educación Continua (DIPEC), Facultad de Ciencias de la Salud, Universidad del Alba, Santiago, Chile.
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15
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Lai WQ, Xia HF, Chen GH, Wang XL, Yang JG, Wu LZ, Zhao YF, Jia YL, Chen G. p-AKT/VPS4B regulates the small extracellular vesicle size in venous malformation endothelial cells. Oral Dis 2024; 30:1273-1285. [PMID: 37154262 DOI: 10.1111/odi.14608] [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: 10/29/2022] [Revised: 04/08/2023] [Accepted: 04/22/2023] [Indexed: 05/10/2023]
Abstract
OBJECTIVE Small extracellular vesicle (sEV)-mediated intercellular communication is increasingly the key for the understanding of venous malformations (VMs). This study aims to clarify the detailed changes of sEVs in VMs. SUBJECTS AND METHODS Fifteen VM patients without treatment history and twelve healthy donors were enrolled in the study. sEVs were isolated from both fresh lesions and cell supernatant, and were examined by western blotting, nanoparticle tracking analysis and transmission electron microscopy. Western blot analysis, immunohistochemistry and immunofluorescence were adopted to screening candidate regulator of sEV size. Specific inhibitors and siRNA were employed to validate the role of dysregulated p-AKT/vacuolar protein sorting-associated protein 4B (VPS4B) signaling on the size of sEVs in endothelial cells. RESULTS The size of sEVs derived from both VM lesion tissues and cell model was significantly increased. VPS4B, whose expression level was mostly significantly downregulated in VM endothelial cells, was responsible for the size change of sEVs. Targeting abnormal AKT activation corrected the size change of sEVs by recovering the expression level of VPS4B. CONCLUSION Downregulated VPS4B in endothelial cells, resulted from abnormally activated AKT signaling, contributed to the increased size of sEVs in VMs.
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Affiliation(s)
- Wen-Qiang Lai
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hou-Fu Xia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Gao-Hong Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xiao-Le Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jie-Gang Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Lian-Zhi Wu
- Department of Obstetrics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yi-Fang Zhao
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yu-Lin Jia
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gang Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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16
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Gupta R, Gupta J, Roy S. Exosomes: Key Players for Treatment of Cancer and Their Future Perspectives. Assay Drug Dev Technol 2024; 22:118-147. [PMID: 38407852 DOI: 10.1089/adt.2023.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024] Open
Affiliation(s)
- Reena Gupta
- Institute of Pharmaceutical Research, GLA University, Mathura, India
| | - Jitendra Gupta
- Institute of Pharmaceutical Research, GLA University, Mathura, India
| | - Suchismita Roy
- Institute of Pharmaceutical Research, GLA University, Mathura, India
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17
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Izhiman Y, Esfandiari L. Emerging role of extracellular vesicles and exogenous stimuli in molecular mechanisms of peripheral nerve regeneration. Front Cell Neurosci 2024; 18:1368630. [PMID: 38572074 PMCID: PMC10989355 DOI: 10.3389/fncel.2024.1368630] [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: 01/10/2024] [Accepted: 02/29/2024] [Indexed: 04/05/2024] Open
Abstract
Peripheral nerve injuries lead to significant morbidity and adversely affect quality of life. The peripheral nervous system harbors the unique trait of autonomous regeneration; however, achieving successful regeneration remains uncertain. Research continues to augment and expedite successful peripheral nerve recovery, offering promising strategies for promoting peripheral nerve regeneration (PNR). These include leveraging extracellular vesicle (EV) communication and harnessing cellular activation through electrical and mechanical stimulation. Small extracellular vesicles (sEVs), 30-150 nm in diameter, play a pivotal role in regulating intercellular communication within the regenerative cascade, specifically among nerve cells, Schwann cells, macrophages, and fibroblasts. Furthermore, the utilization of exogenous stimuli, including electrical stimulation (ES), ultrasound stimulation (US), and extracorporeal shock wave therapy (ESWT), offers remarkable advantages in accelerating and augmenting PNR. Moreover, the application of mechanical and electrical stimuli can potentially affect the biogenesis and secretion of sEVs, consequently leading to potential improvements in PNR. In this review article, we comprehensively delve into the intricacies of cell-to-cell communication facilitated by sEVs and the key regulatory signaling pathways governing PNR. Additionally, we investigated the broad-ranging impacts of ES, US, and ESWT on PNR.
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Affiliation(s)
- Yara Izhiman
- Esfandiari Laboratory, Department of Biomedical Engineering, College of Engineering and Applied Sciences, University of Cincinnati, Cincinnati, OH, United States
| | - Leyla Esfandiari
- Esfandiari Laboratory, Department of Biomedical Engineering, College of Engineering and Applied Sciences, University of Cincinnati, Cincinnati, OH, United States
- Department of Environmental and Public Health Sciences, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
- Department of Electrical and Computer Engineering, College of Engineering and Applied Sciences, University of Cincinnati, Cincinnati, OH, United States
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18
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Dey S, Mohapatra S, Khokhar M, Hassan S, Pandey RK. Extracellular Vesicles in Malaria: Shedding Light on Pathogenic Depths. ACS Infect Dis 2024; 10:827-844. [PMID: 38320272 PMCID: PMC10928723 DOI: 10.1021/acsinfecdis.3c00649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 02/08/2024]
Abstract
Malaria, a life-threatening infectious disease caused by Plasmodium falciparum, remains a significant global health challenge, particularly in tropical and subtropical regions. The epidemiological data for 2021 revealed a staggering toll, with 247 million reported cases and 619,000 fatalities attributed to the disease. This formidable global health challenge continues to perplex researchers seeking a comprehensive understanding of its pathogenesis. Recent investigations have unveiled the pivotal role of extracellular vesicles (EVs) in this intricate landscape. These tiny, membrane-bound vesicles, secreted by diverse cells, emerge as pivotal communicators in malaria's pathogenic orchestra. This Review delves into the multifaceted roles of EVs in malaria pathogenesis, elucidating their impact on disease progression and immune modulation. Insights into EV involvement offer potential therapeutic and diagnostic strategies. Integrating this information identifies targets to mitigate malaria's global impact. Moreover, this Review explores the potential of EVs as diagnostic biomarkers and therapeutic targets in malaria. By deciphering the intricate dialogue facilitated by these vesicles, new avenues for intervention and novel strategies for disease management may emerge.
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Affiliation(s)
- Sangita Dey
- CSO
Department, Cellworks Research India Pvt
Ltd, Bengaluru 560066, Karnataka, India
| | - Salini Mohapatra
- Department
of Biotechnology, Chandigarh University, Punjab 140413, India
| | - Manoj Khokhar
- Department
of Biochemistry, All India Institute of
Medical Sciences Jodhpur, Rajasthan 342005, India
| | - Sana Hassan
- Department
of Life Sciences, Manipal Academy of Higher
Education, Dubai 345050, United Arab Emirates
| | - Rajan Kumar Pandey
- Department
of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm 17177, Sweden
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19
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Shukla S, Chen W, Rao S, Yang S, Ou C, Larsen KP, Hummer G, Hanson PI, Hurley JH. Mechanism and cellular function of direct membrane binding by the ESCRT and ERES-associated Ca 2+-sensor ALG-2. Proc Natl Acad Sci U S A 2024; 121:e2318046121. [PMID: 38386713 PMCID: PMC10907313 DOI: 10.1073/pnas.2318046121] [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: 10/17/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
Apoptosis linked Gene-2 (ALG-2) is a multifunctional intracellular Ca2+ sensor and the archetypal member of the penta-EF hand protein family. ALG-2 functions in the repair of damage to both the plasma and lysosome membranes and in COPII-dependent budding at endoplasmic reticulum exit sites (ERES). In the presence of Ca2+, ALG-2 binds to ESCRT-I and ALIX in membrane repair and to SEC31A at ERES. ALG-2 also binds directly to acidic membranes in the presence of Ca2+ by a combination of electrostatic and hydrophobic interactions. By combining giant unilamellar vesicle-based experiments and molecular dynamics simulations, we show that charge-reversed mutants of ALG-2 at these locations disrupt membrane recruitment. ALG-2 membrane binding mutants have reduced or abrogated ERES localization in response to Thapsigargin-induced Ca2+ release but still localize to lysosomes following lysosomal Ca2+ release. In vitro reconstitution shows that the ALG-2 membrane-binding defect can be rescued by binding to ESCRT-I. These data thus reveal the nature of direct Ca2+-dependent membrane binding and its interplay with Ca2+-dependent protein binding in the cellular functions of ALG-2.
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Affiliation(s)
- Sankalp Shukla
- Department of Molecular and Cell Biology, University of California, Berkeley, CA94720
- California Institute for Quantitative Biosciences, University of California, Berkeley, CA94720
| | - Wei Chen
- Department of Biological Chemistry, University of Michigan School of Medicine, Ann Arbor, MI48109
| | - Shanlin Rao
- Department of Theoretical Biophysics, Max Planck Institute of Biophysics, Frankfurt am Main60438, Germany
| | - Serim Yang
- Department of Molecular and Cell Biology, University of California, Berkeley, CA94720
| | - Chenxi Ou
- Department of Molecular and Cell Biology, University of California, Berkeley, CA94720
- California Institute for Quantitative Biosciences, University of California, Berkeley, CA94720
| | - Kevin P. Larsen
- Department of Molecular and Cell Biology, University of California, Berkeley, CA94720
- California Institute for Quantitative Biosciences, University of California, Berkeley, CA94720
| | - Gerhard Hummer
- Department of Theoretical Biophysics, Max Planck Institute of Biophysics, Frankfurt am Main60438, Germany
- Institute of Biophysics, Goethe UniversityFrankfurt, Frankfurt am Main60438, Germany
| | - Phyllis I. Hanson
- Department of Biological Chemistry, University of Michigan School of Medicine, Ann Arbor, MI48109
| | - James H. Hurley
- Department of Molecular and Cell Biology, University of California, Berkeley, CA94720
- California Institute for Quantitative Biosciences, University of California, Berkeley, CA94720
- Helen Wills Neuroscience Institute, University of California, Berkeley, CA94720
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20
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Parolini I, Degrassi M, Spadaro F, Caponnetto F, Fecchi K, Mastantuono S, Zhouyiyuan X, Demple B, Cesselli D, Tell G. Intraluminal vesicle trafficking is involved in the secretion of base excision repair protein APE1. FEBS J 2024. [PMID: 38401056 DOI: 10.1111/febs.17088] [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: 07/18/2023] [Revised: 11/24/2023] [Accepted: 01/31/2024] [Indexed: 02/26/2024]
Abstract
The apurinic/apyrimidinic endodeoxyribonuclease 1 (APE1) is an essential enzyme of the base excision repair pathway of non-distorting DNA lesions. In response to genotoxic treatments, APE1 is highly secreted (sAPE1) in association with small-extracellular vesicles (EVs). Interestingly, its presence in the serum of patients with hepatocellular or non-small-cell-lung cancers may represent a prognostic biomarker. The mechanism driving APE1 to associate with EVs is unknown, but is of paramount importance in better understanding the biological roles of sAPE1. Because APE1 lacks an endoplasmic reticulum-targeting signal peptide, it can be secreted through an unconventional protein secretion endoplasmic reticulum-Golgi-independent pathway, which includes an endosome-based secretion of intraluminal vesicles, mediated by multivesicular bodies (MVBs). Using HeLa and A549 cell lines, we investigated the role of endosomal sorting complex required for transport protein pathways (either-dependent or -independent) in the constitutive or trichostatin A-induced secretion of sAPE1, by means of manumycin A and GW 4869 treatments. Through an in-depth biochemical analysis of late-endosomes (LEs) and early-endosomes (EEs), we observed that the distribution of APE1 on density gradient corresponded to that of LE-CD63, LE-Rab7, EE-EEA1 and EE-Rab 5. Interestingly, the secretion of sAPE1, induced by cisplatin genotoxic stress, involved an autophagy-based unconventional secretion requiring MVBs. The present study enlightens the central role played by MVBs in the secretion of sAPE1 under various stimuli, and offers new perspectives in understanding the biological relevance of sAPE1 in cancer cells.
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Affiliation(s)
- Isabella Parolini
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
- Laboratory of Molecular Biology and DNA Repair, Department of Medicine, University of Udine, Italy
| | - Monica Degrassi
- Laboratory of Molecular Biology and DNA Repair, Department of Medicine, University of Udine, Italy
| | - Francesca Spadaro
- Core Facilities - Confocal Microscopy Unit, Istituto Superiore di Sanità, Rome, Italy
| | - Federica Caponnetto
- Department of Medicine, University of Udine, Italy
- Institute of Pathology, Academic Hospital Santa Maria della Misericordia, Udine, Italy
| | - Katia Fecchi
- Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Serena Mastantuono
- Department of Medicine, University of Udine, Italy
- Institute of Pathology, Academic Hospital Santa Maria della Misericordia, Udine, Italy
| | - Xue Zhouyiyuan
- Department of Pharmacological Sciences, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Bruce Demple
- Department of Pharmacological Sciences, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Daniela Cesselli
- Department of Medicine, University of Udine, Italy
- Institute of Pathology, Academic Hospital Santa Maria della Misericordia, Udine, Italy
| | - Gianluca Tell
- Laboratory of Molecular Biology and DNA Repair, Department of Medicine, University of Udine, Italy
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21
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Li J, Lin Y, Wang X, Lu M. Interconnection of cellular autophagy and endosomal vesicle trafficking and its role in hepatitis B virus replication and release. Virol Sin 2024; 39:24-30. [PMID: 38211880 PMCID: PMC10877419 DOI: 10.1016/j.virs.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/06/2024] [Indexed: 01/13/2024] Open
Abstract
Hepatitis B virus (HBV) produces and releases various particle types, including complete virions, subviral particles with envelope proteins, and naked capsids. Recent studies demonstrate that HBV exploits distinct intracellular membrane trafficking pathways, including the endosomal vesicle trafficking and autophagy pathway, to assemble and release viral and subviral particles. Herein, we summarize the findings about the distinct roles of autophagy and endosomal membrane trafficking and the interaction of both pathways in HBV replication, assembly, and release.
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Affiliation(s)
- Jia Li
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, 45122, Germany
| | - Yong Lin
- Key Laboratory of Molecular Biology of Infectious Diseases (Chinese Ministry of Education), Chongqing Medical University, Chongqing, 400016, China
| | - Xueyu Wang
- The Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310000, China
| | - Mengji Lu
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, 45122, Germany.
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22
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Bansal S, Rahman M, Ravichandran R, Canez J, Fleming T, Mohanakumar T. Extracellular Vesicles in Transplantation: Friend or Foe. Transplantation 2024; 108:374-385. [PMID: 37482627 DOI: 10.1097/tp.0000000000004693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
The long-term function of transplanted organs, even under immunosuppression, is hindered by rejection, especially chronic rejection. Chronic rejection occurs more frequently after lung transplantation, termed chronic lung allograft dysfunction (CLAD), than after transplantation of other solid organs. Pulmonary infection is a known risk factor for CLAD, as transplanted lungs are constantly exposed to the external environment; however, the mechanisms by which respiratory infections lead to CLAD are poorly understood. The role of extracellular vesicles (EVs) in transplantation remains largely unknown. Current evidence suggests that EVs released from transplanted organs can serve as friend and foe. EVs carry not only major histocompatibility complex antigens but also tissue-restricted self-antigens and various transcription factors, costimulatory molecules, and microRNAs capable of regulating alloimmune responses. EVs play an important role in antigen presentation by direct, indirect, and semidirect pathways in which CD8 and CD4 cells can be activated. During viral infections, exosomes (small EVs <200 nm in diameter) can express viral antigens and regulate immune responses. Circulating exosomes may also be a viable biomarker for other diseases and rejection after organ transplantation. Bioengineering the surface of exosomes has been proposed as a tool for targeted delivery of drugs and personalized medicine. This review focuses on recent studies demonstrating the role of EVs with a focus on exosomes and their dual role (immune activation or tolerance induction) after organ transplantation, more specifically, lung transplantation.
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Affiliation(s)
- Sandhya Bansal
- Norton Thoracic Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ
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23
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Alimohamadi H, Luo EWC, Gupta S, de Anda J, Yang R, Mandal T, Wong GCL. Comparing multifunctional viral and eukaryotic proteins for generating scission necks in membranes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.05.574447. [PMID: 38260291 PMCID: PMC10802413 DOI: 10.1101/2024.01.05.574447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Deterministic formation of membrane scission necks by protein machinery with multiplexed functions is critical in biology. A microbial example is the M2 viroporin, a proton pump from the influenza A virus which is multiplexed with membrane remodeling activity to induce budding and scission in the host membrane during viral maturation. In comparison, the dynamin family constitutes a class of eukaryotic proteins implicated in mitochondrial fission, as well as various budding and endocytosis pathways. In the case of Dnm1, the mitochondrial fission protein in yeast, the membrane remodeling activity is multiplexed with mechanoenzyme activity to create fission necks. It is not clear why these functions are combined in these scission processes, which occur in drastically different compositions and solution conditions. In general, direct experimental access to changing neck sizes induced by individual proteins or peptide fragments is challenging due to the nanoscale dimensions and influence of thermal fluctuations. Here, we use a mechanical model to estimate the size of scission necks by leveraging Small-Angle X-ray Scattering (SAXS) structural data of protein-lipid systems under different conditions. The influence of interfacial tension, lipid composition, and membrane budding morphology on the size of the induced scission necks is systematically investigated using our data and molecular dynamic simulations. We find that the M2 budding protein from the influenza A virus has robust pH-dependent membrane activity that induces nanoscopic necks within the range of spontaneous hemi-fission for a broad range of lipid compositions. In contrast, the sizes of scission necks generated by mitochondrial fission proteins strongly depend on lipid composition, which suggests a role for mechanical constriction.
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24
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Abdul-Rahman T, Ghosh S, Kalmanovich JB, Awuah AW, Zivcevska M, Khalifa S, Bassey EE, Ali NA, Ferreira MMDS, Umar TP, Garg N, Nweze VN, Inturu VSS, Abdelwahab MM, Kurian S, Alexiou A, Alfaleh M, Alqurashi TMA, Ashraf GM. The role of membrane trafficking and retromer complex in Parkinson's and Alzheimer's disease. J Neurosci Res 2024; 102:e25261. [PMID: 38284858 DOI: 10.1002/jnr.25261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 09/16/2023] [Accepted: 10/03/2023] [Indexed: 01/30/2024]
Abstract
Membrane trafficking is a physiological process encompassing different pathways involved in transporting cellular products across cell membranes to specific cell locations via encapsulated vesicles. This process is required for cells to mature and function properly, allowing them to adapt to their surroundings. The retromer complex is a complex composed of nexin proteins and peptides that play a vital role in the endosomal pathway of membrane trafficking. In humans, any interference in normal membrane trafficking or retromer complex can cause profound changes such as those seen in neurodegenerative disorders such as Alzheimer's and Parkinson's. Several studies have explored the potential causative mechanisms in developing both disease processes; however, the role of retromer trafficking in their pathogenesis is becoming increasingly significant with promising therapeutic applications. This manuscript describes the processes involved in membrane transport and the roles of the retromer in the onset and progression of Alzheimer's and Parkinson's. Moreover, we will also explore how these aberrant mechanisms may serve as possible avenues for treatment development in both diseases and the prospect of its future application.
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Affiliation(s)
| | - Shankhaneel Ghosh
- Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan, Bhubaneswar, India
| | | | | | - Marija Zivcevska
- Liberty University College of Osteopathic Medicine, Lynchburg, Virginia, USA
| | - Samar Khalifa
- Clinical Psychology Department, Faculty of Arts, Kafrelsheikh University, Kafr Elsheikh, Egypt
| | | | | | | | - Tungki Pratama Umar
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London, UK
| | - Neil Garg
- Rowan-Virtua School of Osteopathic Medicine, One Medical Center Drive Stratford, Stratford, New Jersey, USA
| | | | | | | | | | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, New South Wales, Australia
- AFNP Med, Wien, Austria
| | - Mohammed Alfaleh
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Vaccines and Immunotherapy Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Thamer M A Alqurashi
- Department of Pharmacology, Medical College, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Ghulam Md Ashraf
- Department of Medical Laboratory Sciences, College of Health Sciences, Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
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25
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Deng L, Solichin MR, Adyaksa DNM, Septianastiti MA, Fitri RA, Suwardan GNR, Matsui C, Abe T, Shoji I. Cellular Release of Infectious Hepatitis C Virus Particles via Endosomal Pathways. Viruses 2023; 15:2430. [PMID: 38140670 PMCID: PMC10747773 DOI: 10.3390/v15122430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Hepatitis C virus (HCV) is a positive-sense, single-stranded RNA virus that causes chronic hepatitis, liver cirrhosis and hepatocellular carcinoma. The release of infectious HCV particles from infected hepatocytes is a crucial step in viral dissemination and disease progression. While the exact mechanisms of HCV particle release remain poorly understood, emerging evidence suggests that HCV utilizes intracellular membrane trafficking and secretory pathways. These pathways include the Golgi secretory pathway and the endosomal trafficking pathways, such as the recycling endosome pathway and the endosomal sorting complex required for transport (ESCRT)-dependent multivesicular bodies (MVBs) pathway. This review provides an overview of recent advances in understanding the release of infectious HCV particles, with a particular focus on the involvement of the host cell factors that participate in HCV particle release. By summarizing the current knowledge in this area, this review aims to contribute to a better understanding of endosomal pathways involved in the extracellular release of HCV particles and the development of novel antiviral strategies.
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Affiliation(s)
- Lin Deng
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
| | - Muchamad Ridotu Solichin
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Dewa Nyoman Murti Adyaksa
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Maria Alethea Septianastiti
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Rhamadianti Aulia Fitri
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Gede Ngurah Rsi Suwardan
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
- Department of Clinical Microbiology, Faculty of Medicine, Universitas Udayana, Bali 80361, Indonesia
| | - Chieko Matsui
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
| | - Takayuki Abe
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
| | - Ikuo Shoji
- Division of Infectious Disease Control, Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (L.D.); (D.N.M.A.); (M.A.S.); (T.A.)
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26
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Shukla S, Chen W, Rao S, Yang S, Ou C, Larsen KP, Hummer G, Hanson PI, Hurley JH. Mechanism and cellular function of direct membrane binding by the ESCRT and ERES-associated Ca 2+-sensor ALG-2. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.17.562764. [PMID: 37904979 PMCID: PMC10614929 DOI: 10.1101/2023.10.17.562764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Apoptosis Linked Gene-2 (ALG-2) is a multifunctional intracellular Ca2+ sensor and the archetypal member of the penta-EF hand protein family. ALG-2 functions in the repair of damage to both the plasma and lysosome membranes and in COPII-dependent budding at endoplasmic reticulum exit sites (ERES). In the presence of Ca2+, ALG-2 binds to ESCRT-I and ALIX in membrane repair and to SEC31A at ERES. ALG-2 also binds directly to acidic membranes in the presence of Ca2+ by a combination of electrostatic and hydrophobic interactions. By combining GUV-based experiments and molecular dynamics simulations, we show that charge-reversed mutants of ALG-2 at these locations disrupt membrane recruitment. ALG-2 membrane binding mutants have reduced or abrogated ERES localization in response to Thapsigargin-induced Ca2+ release but still localize to lysosomes following lysosomal Ca2+ release. In vitro reconstitution shows that the ALG-2 membrane-binding defect can be rescued by binding to ESCRT-I. These data thus reveal the nature of direct Ca2+-dependent membrane binding and its interplay with Ca2+-dependent protein binding in the cellular functions of ALG-2.
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Affiliation(s)
- Sankalp Shukla
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Wei Chen
- Department of Biological Chemistry, University of Michigan School of Medicine, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA
| | - Shanlin Rao
- Department of Theoretical Biophysics, Max Planck Institute of Biophysics, Frankfurt am Main, Germany
| | - Serim Yang
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Chenxi Ou
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Kevin P. Larsen
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Gerhard Hummer
- Department of Theoretical Biophysics, Max Planck Institute of Biophysics, Frankfurt am Main, Germany
- Institute of Biophysics, Goethe University Frankfurt, Frankfurt am Main 60438, Germany
| | - Phyllis I. Hanson
- Department of Biological Chemistry, University of Michigan School of Medicine, 1150 W. Medical Center Drive, Ann Arbor, MI, 48109, USA
| | - James H. Hurley
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA
- Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
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27
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Singh S, Yeat NY, Wang YT, Lin SY, Kuo IY, Wu KP, Wang WJ, Wang WC, Su WC, Wang YC, Chen RH. PTPN23 ubiquitination by WDR4 suppresses EGFR and c-MET degradation to define a lung cancer therapeutic target. Cell Death Dis 2023; 14:671. [PMID: 37821451 PMCID: PMC10567730 DOI: 10.1038/s41419-023-06201-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/19/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
Aberrant overexpression or activation of EGFR drives the development of non-small cell lung cancer (NSCLC) and acquired resistance to EGFR tyrosine kinase inhibitors (TKIs) by secondary EGFR mutations or c-MET amplification/activation remains as a major hurdle for NSCLC treatment. We previously identified WDR4 as a substrate adaptor of Cullin 4 ubiquitin ligase and an association of WDR4 high expression with poor prognosis of lung cancer. Here, using an unbiased ubiquitylome analysis, we uncover PTPN23, a component of the ESCRT complex, as a substrate of WDR4-based ubiquitin ligase. WDR4-mediated PTPN23 ubiquitination leads to its proteasomal degradation, thereby suppressing lysosome trafficking and degradation of wild type EGFR, EGFR mutant, and c-MET. Through this mechanism, WDR4 sustains EGFR and c-MET signaling to promote NSCLC proliferation, migration, invasion, stemness, and metastasis. Clinically, PTPN23 is downregulated in lung cancer and its low expression correlates with WDR4 high expression and poor prognosis. Targeting WDR4-mediated PTPN23 ubiquitination by a peptide that competes with PTPN23 for binding WDR4 promotes EGFR and c-MET degradation to block the growth and progression of EGFR TKI-resistant NSCLC. These findings identify a central role of WDR4/PTPN23 axis in EGFR and c-MET trafficking and a potential therapeutic target for treating EGFR TKI-resistant NSCLC.
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Affiliation(s)
- Shaifali Singh
- Institute of Biological Chemistry, Academia Sinica, Taipei, 115, Taiwan
- Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program, Academia Sinica, Taipei, 115, Taiwan
- Institute of Molecular & Cellular Biology and Department of Life Science, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Nai Yang Yeat
- Institute of Biological Chemistry, Academia Sinica, Taipei, 115, Taiwan
- Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program, Academia Sinica, Taipei, 115, Taiwan
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Ya-Ting Wang
- Institute of Biological Chemistry, Academia Sinica, Taipei, 115, Taiwan
| | - Shu-Yu Lin
- Institute of Biological Chemistry, Academia Sinica, Taipei, 115, Taiwan
| | - I-Ying Kuo
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Kuen-Phon Wu
- Institute of Biological Chemistry, Academia Sinica, Taipei, 115, Taiwan
- Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program, Academia Sinica, Taipei, 115, Taiwan
| | - Won-Jing Wang
- Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan
| | - Wen-Ching Wang
- Institute of Molecular & Cellular Biology and Department of Life Science, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Wu-Chou Su
- Division of Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Yi-Ching Wang
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Ruey-Hwa Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei, 115, Taiwan.
- Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program, Academia Sinica, Taipei, 115, Taiwan.
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28
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Wang C, Chen Y, Hu S, Liu X. Insights into the function of ESCRT and its role in enveloped virus infection. Front Microbiol 2023; 14:1261651. [PMID: 37869652 PMCID: PMC10587442 DOI: 10.3389/fmicb.2023.1261651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/20/2023] [Indexed: 10/24/2023] Open
Abstract
The endosomal sorting complex required for transport (ESCRT) is an essential molecular machinery in eukaryotic cells that facilitates the invagination of endosomal membranes, leading to the formation of multivesicular bodies (MVBs). It participates in various cellular processes, including lipid bilayer remodeling, cytoplasmic separation, autophagy, membrane fission and re-modeling, plasma membrane repair, as well as the invasion, budding, and release of certain enveloped viruses. The ESCRT complex consists of five complexes, ESCRT-0 to ESCRT-III and VPS4, along with several accessory proteins. ESCRT-0 to ESCRT-II form soluble complexes that shuttle between the cytoplasm and membranes, mainly responsible for recruiting and transporting membrane proteins and viral particles, as well as recruiting ESCRT-III for membrane neck scission. ESCRT-III, a soluble monomer, directly participates in vesicle scission and release, while VPS4 hydrolyzes ATP to provide energy for ESCRT-III complex disassembly, enabling recycling. Studies have confirmed the hijacking of ESCRT complexes by enveloped viruses to facilitate their entry, replication, and budding. Recent research has focused on the interaction between various components of the ESCRT complex and different viruses. In this review, we discuss how different viruses hijack specific ESCRT regulatory proteins to impact the viral life cycle, aiming to explore commonalities in the interaction between viruses and the ESCRT system.
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Affiliation(s)
- Chunxuan Wang
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yu Chen
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Shunlin Hu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
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29
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Soltani-Fard E, Asadi M, Taghvimi S, Vafadar A, Vosough P, Tajbakhsh A, Savardashtaki A. Exosomal microRNAs and long noncoding RNAs: as novel biomarkers for endometriosis. Cell Tissue Res 2023; 394:55-74. [PMID: 37480408 DOI: 10.1007/s00441-023-03802-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 06/23/2023] [Indexed: 07/24/2023]
Abstract
Endometriosis is a gynecological inflammatory disorder characterized by the development of endometrial-like cells outside the uterine cavity. This disease is associated with a wide range of clinical presentations, such as debilitating pelvic pain and infertility issues. Endometriosis diagnosis is not easily discovered by ultrasound or clinical examination. Indeed, difficulties in noninvasive endometriosis diagnosis delay the confirmation and management of the disorder, increase symptoms, and place a significant medical and financial burden on patients. So, identifying specific and sensitive biomarkers for this disease should therefore be a top goal. Exosomes are extracellular vesicles secreted by most cell types. They transport between cells' bioactive molecules such as noncoding RNAs and proteins. MicroRNAs and long noncoding RNAs which are key molecules transferred by exosomes have recently been identified to have a significant role in endometriosis by modulating different proteins and their related genes. As a result, the current review focuses on exosomal micro-and-long noncoding RNAs that are involved in endometriosis disease. Furthermore, major molecular mechanisms linking corresponding RNA molecules to endometriosis development will be briefly discussed to better clarify the potential functions of exosomal noncoding RNAs in the therapy and diagnosis of endometriosis.
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Affiliation(s)
- Elahe Soltani-Fard
- Department of Molecular Medicine, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Marzieh Asadi
- Department of Medical Biotechnology, School of Advanced Medical Sciences and, Technologies, Shiraz University of, Medical Sciences, Shiraz, 71362 81407, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sina Taghvimi
- Department of Biology, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Asma Vafadar
- Department of Medical Biotechnology, School of Advanced Medical Sciences and, Technologies, Shiraz University of, Medical Sciences, Shiraz, 71362 81407, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parisa Vosough
- Department of Medical Biotechnology, School of Advanced Medical Sciences and, Technologies, Shiraz University of, Medical Sciences, Shiraz, 71362 81407, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Tajbakhsh
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences and, Technologies, Shiraz University of, Medical Sciences, Shiraz, 71362 81407, Iran.
- Infertility Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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30
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Zhang Z, Zhao S, Sun Z, Zhai C, Xia J, Wen C, Zhang Y, Zhang Y. Enhancement of the therapeutic efficacy of mesenchymal stem cell-derived exosomes in osteoarthritis. Cell Mol Biol Lett 2023; 28:75. [PMID: 37770821 PMCID: PMC10540339 DOI: 10.1186/s11658-023-00485-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 08/29/2023] [Indexed: 09/30/2023] Open
Abstract
Osteoarthritis (OA), a common joint disorder with articular cartilage degradation as the main pathological change, is the major source of pain and disability worldwide. Despite current treatments, the overall treatment outcome is unsatisfactory. Thus, patients with severe OA often require joint replacement surgery. In recent years, mesenchymal stem cells (MSCs) have emerged as a promising therapeutic option for preclinical and clinical palliation of OA. MSC-derived exosomes (MSC-Exos) carrying bioactive molecules of the parental cells, including non-coding RNAs (ncRNAs) and proteins, have demonstrated a significant impact on the modulation of various physiological behaviors of cells in the joint cavity, making them promising candidates for cell-free therapy for OA. This review provides a comprehensive overview of the biosynthesis and composition of MSC-Exos and their mechanisms of action in OA. We also discussed the potential of MSC-Exos as a therapeutic tool for modulating intercellular communication in OA. Additionally, we explored bioengineering approaches to enhance MSC-Exos' therapeutic potential, which may help to overcome challenges and achieve clinically meaningful OA therapies.
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Affiliation(s)
- Zehao Zhang
- School of Clinical Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Sheng Zhao
- School of Clinical Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Zhaofeng Sun
- School of Clinical Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Chuanxing Zhai
- School of Clinical Medicine, Jining Medical University, Jining, 272067, Shandong, China
| | - Jiang Xia
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR, China
| | - Caining Wen
- Department of Joint Surgery and Sports Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, 272029, Shandong, China.
| | - Yuge Zhang
- Department of Joint Surgery and Sports Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, 272029, Shandong, China.
| | - Yuanmin Zhang
- Department of Joint Surgery and Sports Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, 272029, Shandong, China.
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31
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Liu C, Liu X, Li H, Kang Z. Advances in the regulation of adipogenesis and lipid metabolism by exosomal ncRNAs and their role in related metabolic diseases. Front Cell Dev Biol 2023; 11:1173904. [PMID: 37791070 PMCID: PMC10543472 DOI: 10.3389/fcell.2023.1173904] [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: 02/25/2023] [Accepted: 08/15/2023] [Indexed: 10/05/2023] Open
Abstract
Exosomes are membrane-bound extracellular vesicles released following the fusion of multivesicular bodies (MVBs) with the cell membrane. Exosomes transport diverse molecules, including proteins, lipids, DNA and RNA, and regulate distant intercellular communication. Noncoding RNA (ncRNAs) carried by exosomes regulate cell-cell communication in tissues, including adipose tissue. This review summarizes the action mechanisms of ncRNAs carried by exosomes on adipocyte differentiation and modulation of adipogenesis by exosomal ncRNAs. This study aims to provide valuable insights for developing novel therapeutics.
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Affiliation(s)
- Cong Liu
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xilin Liu
- Department of Hand and Foot Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Hong Li
- Department of Nursing, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zhichen Kang
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun, China
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32
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Santiago JA, Monroy F. Inhomogeneous Canham-Helfrich Abscission in Catenoid Necks under Critical Membrane Mosaicity. MEMBRANES 2023; 13:796. [PMID: 37755218 PMCID: PMC10534449 DOI: 10.3390/membranes13090796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/28/2023]
Abstract
The mechanical effects of membrane compositional inhomogeneities are analyzed in a process analogous to neck formation in cellular membranes. We cast on the Canham-Helfrich model of fluid membranes with both the spontaneous curvature and the surface tension being non-homogeneous functions along the cell membrane. The inhomogeneous distribution of necking forces is determined by the equilibrium mechanical equations and the boundary conditions as considered in the axisymmetric setting compatible with the necking process. To establish the role played by mechanical inhomogeneity, we focus on the catenoid, a surface of zero mean curvature. Analytic solutions are shown to exist for the spontaneous curvature and the constrictive forces in terms of the border radii. Our theoretical analysis shows that the inhomogeneous distribution of spontaneous curvature in a mosaic-like neck constrictional forces potentially contributes to the membrane scission under minimized work in living cells.
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Affiliation(s)
- José Antonio Santiago
- Departamento de Matemáticas Aplicadas y Sistemas, Universidad Autónoma Metropolitana Cuajimalpa, Vasco de Quiroga 4871, Ciudad de México 05384, Mexico
- Departamento de Química Física, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid, Spain;
- Translational Biophysics, Institute for Biomedical Research, Hospital Doce de Octubre (imas12), Av. Andalucía s/n, 28041 Madrid, Spain
| | - Francisco Monroy
- Departamento de Química Física, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid, Spain;
- Translational Biophysics, Institute for Biomedical Research, Hospital Doce de Octubre (imas12), Av. Andalucía s/n, 28041 Madrid, Spain
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33
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Liang Y. Phagophore-lysosome/vacuole fusion in mutant yeast and mammalian cells. Autophagy 2023; 19:2595-2600. [PMID: 37083184 PMCID: PMC10392725 DOI: 10.1080/15548627.2023.2205272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 04/22/2023] Open
Abstract
Macroautophagy/autophagy is a process through which the phagophores engulf non-essential or damaged cellular materials, forming double-membrane autophagosomes (APs) and fusing with lysosomes/vacuoles, after which the materials are degraded for recycling purposes. Autophagy is associated with increased cell survival under different stress conditions. AP-lysosome/vacuole fusion is a critical step in autophagy. Some mutant cells can accumulate phagophores under autophagy-induction conditions. Autophagy is interrupted when accumulated phagophores cannot fuse with lysosomes/vacuoles, resulting in a significant decrease in cell survivability. However, phagophore-lysosome/vacuole fusion has been reported in related mammalian cells and yeast mutant cells. This observation indicates that it is possible to restore a partial autophagy process after interruption. Furthermore, these findings indicate that phagophore closure is not a prerequisite for its fusion with the lysosome/vacuole in the mutant cells. The phagophore-lysosome/vacuole fusion strategy can significantly rescue defective autophagy due to failed phagophore closure. This commentary discusses the fusion of phagophores and lysosomes/vacuoles and implications of such fusion events.Abbreviations: AB: autophagic body; AL: autolysosome; AP: autophagosome; ATG: autophagy related; EM: electron microscopy; ESCRT: endosomal sorting complex required for transport; ET: electron tomography; FIB: focus ion beam; IM: inner membrane; KO: knockout; LAMP1: lysosomal-associated membrane protein 1; OM; outer membrane; STX17: syntaxin 17; TEM: transmission electron microscopy; TM: transmembrane domain; Vps: vacuolar protein sorting; WT: wild-type.
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Affiliation(s)
- Yongheng Liang
- College of Life Sciences, Key Laboratory of Agricultural Environmental Microbiology of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
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34
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Nair S, Ormazabal V, Carrion F, Handberg A, McIntyre H, Salomon C. Extracellular vesicle-mediated targeting strategies for long-term health benefits in gestational diabetes. Clin Sci (Lond) 2023; 137:1311-1332. [PMID: 37650554 PMCID: PMC10472199 DOI: 10.1042/cs20220150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 07/23/2023] [Accepted: 08/09/2023] [Indexed: 09/01/2023]
Abstract
Extracellular vesicles (EVs) are critical mediators of cell communication, playing important roles in regulating molecular cross-talk between different metabolic tissues and influencing insulin sensitivity in both healthy and gestational diabetes mellitus (GDM) pregnancies. The ability of EVs to transfer molecular cargo between cells imbues them with potential as therapeutic agents. During pregnancy, the placenta assumes a vital role in metabolic regulation, with multiple mechanisms of placenta-mediated EV cross-talk serving as central components in GDM pathophysiology. This review focuses on the role of the placenta in the pathophysiology of GDM and explores the possibilities and prospects of targeting the placenta to address insulin resistance and placental dysfunction in GDM. Additionally, we propose the use of EVs as a novel method for targeted therapeutics in treating the dysfunctional placenta. The primary aim of this review is to comprehend the current status of EV targeting approaches and assess the potential application of these strategies in placental therapeutics, thereby delivering molecular cargo and improving maternal and fetal outcomes in GDM. We propose that EVs have the potential to revolutionize GDM management, offering hope for enhanced maternal-fetal health outcomes and more effective treatments.
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Affiliation(s)
- Soumyalekshmi Nair
- Translational Extracellular Vesicle in Obstetrics and Gynae-Oncology Group, UQ Centre for Clinical Research, Royal Brisbane and Women's Hospital, Faculty of Medicine, The University of Queensland, Australia
| | - Valeska Ormazabal
- Department of Pharmacology, Faculty of Biological Sciences, University of Concepcion, Concepción, Chile
| | - Flavio Carrion
- Departamento de Investigación, Postgrado y Educación Continua (DIPEC), Facultad de Ciencias de la Salud, Universidad del Alba, Santiago, Chile
| | - Aase Handberg
- Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark
| | - H David McIntyre
- Mater Research, Faculty of Medicine, University of Queensland, Mater Health, South Brisbane, Australia
| | - Carlos Salomon
- Translational Extracellular Vesicle in Obstetrics and Gynae-Oncology Group, UQ Centre for Clinical Research, Royal Brisbane and Women's Hospital, Faculty of Medicine, The University of Queensland, Australia
- Departamento de Investigación, Postgrado y Educación Continua (DIPEC), Facultad de Ciencias de la Salud, Universidad del Alba, Santiago, Chile
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35
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Zhao R, Jiang Y, Zhang J, Huang Y, Xiong C, Zhao Z, Huang T, Liu W, Zhou N, Li Z, Luo X, Tang Y. Development and validation of a novel necroptosis-related gene signature for predicting prognosis and therapeutic response in Ewing sarcoma. Front Med (Lausanne) 2023; 10:1239487. [PMID: 37663658 PMCID: PMC10470467 DOI: 10.3389/fmed.2023.1239487] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/02/2023] [Indexed: 09/05/2023] Open
Abstract
Ewing sarcoma (ES) is the second most common malignant bone tumor in children and has a poor prognosis due to early metastasis and easy recurrence. Necroptosis is a newly discovered cell death method, and its critical role in tumor immunity and therapy has attracted widespread attention. Thus, the emergence of necroptosis may provide bright prospects for the treatment of ES and deserves our further study. Here, based on the random forest algorithm, we identified 6 key necroptosis-related genes (NRGs) and used them to construct an NRG signature with excellent predictive performance. Subsequent analysis showed that NRGs were closely associated with ES tumor immunity, and the signature was also good at predicting immunotherapy and chemotherapy response. Next, a comprehensive analysis of key genes showed that RIPK1, JAK1, and CHMP7 were potential therapeutic targets. The Cancer Dependency Map (DepMap) results showed that CHMP7 is associated with ES cell growth, and the Gene Set Cancer Analysis (GSCALite) results revealed that the JAK1 mutation frequency was the highest. The expression of 3 genes was all negatively correlated with methylation and positively with copy number variation (CNV). Finally, an accurate nomogram was constructed with this signature and clinical traits. In short, this study constructed an accurate prognostic signature and identified 3 novel therapeutic targets against ES.
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Affiliation(s)
- Runhan Zhao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Yu Jiang
- School of Public Health, Chongqing Medical University, Chongqing, China
| | - Jun Zhang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Yanran Huang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Chuang Xiong
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Zenghui Zhao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Tianji Huang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Wei Liu
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Nian Zhou
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Zefang Li
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Orthopedics, Qianjiang Central Hospital of Chongqing, Chongqing, China
| | - Xiaoji Luo
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Yongli Tang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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36
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Guru SA, Saha P, Chen L, Tulshyan A, Ge ZD, Baily J, Simons L, Stefanowicz A, Bilewska A, Mehta V, Mishra R, Sharma S, Ali A, Krishnan S, Kaushal S. HSF-1 enhances cardioprotective potential of stem cells via exosome biogenesis and their miRNA cargo enrichment. Stem Cell Rev Rep 2023; 19:2038-2051. [PMID: 37261668 DOI: 10.1007/s12015-023-10565-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2023] [Indexed: 06/02/2023]
Abstract
Stem cell therapy provides a hope to no option heart disease patient group. Stem cells work via different mechanisms of which paracrine mechanism is reported to justify most of the effects. Therefore, identifying the control arms for paracrine cocktail production is necessary to tailor stem cell functions in disease contextual manner. In this study, we describe a novel paracrine cocktail regulatory axis, in stem cells, to enhance their cardioprotective abilities. We identified that HSF1 knockout resulted in reduced cardiac regenerative abilities of mesenchymal stem cells (MSCs) while its overexpression had opposite effects. Altered exosome biognesis and their miRNA cargo enrichment were found to be underlying these altered regenerative abilities. Decreased production of exosomes by MSCs accompanied their loss of HSF1 and vice versa. Moreover, the exosomes derived from HSF1 depleted MSCs showed significantly reduced candidate miRNA expression (miR-145, miR-146, 199-3p, 199b and miR-590) compared to those obtained from HSF1 overexpressing MSCs. We further discovered that HSF1 mediates miRNAs' enrichment into exosomes via Y binding protein 1 (YBX1) and showed, by loss and gain of function strategies, that miRNAs' enrichment in mesenchymal stem cell derived exosomes is deregulated with altered YBX1 expression. It was finally demonstrated that absence of YBX1 in MSCs, with normal HSF1 expression, resulted in significant accumulation of candidate miRNAs into the cells. Together, our data shows that HSF1 plays a critical role in determining the regenerative potential of stem cells. HSF1 does that by affecting exosome biogenesis and miRNA cargo sorting via regulation of YBX1 gene expression.
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Affiliation(s)
- Sameer Ahmad Guru
- Deininger Lab, Versiti, Blood Research Institute, Milwaukee, WI, USA
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Progyaparamita Saha
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Ling Chen
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Antariksh Tulshyan
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Zhi-Dong Ge
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Jeanette Baily
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Lydia Simons
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Artur Stefanowicz
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Agata Bilewska
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Vivek Mehta
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Rachana Mishra
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Sudhish Sharma
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Asif Ali
- David Pincus lab, Molecular Genetics and Cell Biology Committee on Cancer Biology, Chicago University, Chicago, IL, USA
| | - Swetha Krishnan
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA
| | - Sunjay Kaushal
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, 303 E Superior SQRB 4th floor, Chicago, IL, USA.
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Bandyopadhyay D, Basu S, Mukherjee I, Chakrabarti S, Chakrabarti P, Mukherjee K, Bhattacharyya SN. Accelerated export of Dicer1 from lipid-challenged hepatocytes buffers cellular miRNA-122 levels and prevents cell death. J Biol Chem 2023; 299:104999. [PMID: 37394005 PMCID: PMC10413358 DOI: 10.1016/j.jbc.2023.104999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/04/2023] Open
Abstract
Hepatocytes on exposure to high levels of lipids reorganize the metabolic program while fighting against the toxicity associated with elevated cellular lipids. The mechanism of this metabolic reorientation and stress management in lipid-challenged hepatocytes has not been well explored. We have noted the lowering of miR-122, a liver-specific miRNA, in the liver of mice fed with either a high-fat diet or a methionine-choline-deficient diet that is associated with increased fat accumulation in mice liver. Interestingly, low miR-122 levels are attributed to the enhanced extracellular export of miRNA processor enzyme Dicer1 from hepatocytes in the presence of high lipids. Export of Dicer1 can also account for the increased cellular levels of pre-miR-122-the substrate of Dicer1. Interestingly, restoration of Dicer1 levels in the mouse liver resulted in a strong inflammatory response and cell death in the presence of high lipids. Increasing death of hepatocytes was found to be caused by increased miR-122 levels in hepatocytes restored for Dicer1. Thus, the Dicer1 export by hepatocytes seems to be a key mechanism to combat lipotoxic stress by shunting out miR-122 from stressed hepatocytes. Finally, as part of this stress management, we determined that the Ago2-interacting pool of Dicer1, responsible for mature microribonucleoprotein formation in mammalian cells, gets depleted. miRNA-binder and exporter protein HuR is found to accelerate Ago2-Dicer1 uncoupling to ensure export of Dicer1 via extracellular vesicles in lipid-loaded hepatocytes.
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Affiliation(s)
- Diptankar Bandyopadhyay
- RNA Biology Research Laboratory, Molecular Genetics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Sudarshana Basu
- RNA Biology Research Laboratory, Molecular Genetics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India; Department of Molecular Biology, Netaji Subhas Chandra Bose Cancer Research Institute (NCRI) Kolkata, India
| | - Ishita Mukherjee
- Structural Biology and Bio-Informatics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Saikat Chakrabarti
- Structural Biology and Bio-Informatics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Partha Chakrabarti
- Metabolic Disease Laboratory, Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Kamalika Mukherjee
- RNA Biology Research Laboratory, Molecular Genetics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India; Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA
| | - Suvendra N Bhattacharyya
- RNA Biology Research Laboratory, Molecular Genetics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India; Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA.
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38
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Jun YW, Lee S, Ban BK, Lee JA, Gao FB. Non-muscle MYH10/myosin IIB recruits ESCRT-III to participate in autophagosome closure to maintain neuronal homeostasis. Autophagy 2023; 19:2045-2061. [PMID: 36849436 PMCID: PMC10283425 DOI: 10.1080/15548627.2023.2169309] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 03/01/2023] Open
Abstract
Dysfunction of the endosomal sorting complex required for transport (ESCRT) has been linked to frontotemporal dementia (FTD) due in part to the accumulation of unsealed autophagosomes. However, the mechanisms of ESCRT-mediated membrane closure events on phagophores remain largely unknown. In this study, we found that partial knockdown of non-muscle MYH10/myosin IIB/zip rescues neurodegeneration in both Drosophila and human iPSC-derived cortical neurons expressing FTD-associated mutant CHMP2B, a subunit of ESCRT-III. We also found that MYH10 binds and recruits several autophagy receptor proteins during autophagosome formation induced by mutant CHMP2B or nutrient starvation. Moreover, MYH10 interacted with ESCRT-III to regulate phagophore closure by recruiting ESCRT-III to damaged mitochondria during PRKN/parkin-mediated mitophagy. Evidently, MYH10 is involved in the initiation of induced but not basal autophagy and also links ESCRT-III to mitophagosome sealing, revealing novel roles of MYH10 in the autophagy pathway and in ESCRT-related FTD pathogenesis.Abbreviations: ALS: amyotrophic lateral sclerosis; AP: autophagosome; Atg: autophagy-related; ESCRT: endosomal sorting complex required for transport; FTD: frontotemporal dementia.
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Affiliation(s)
- Yong-Woo Jun
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Soojin Lee
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Byung-Kwan Ban
- Department of Biotechnology and Biological Sciences, Hannam University, Yuseong-gu, Daejeon, Republic of Korea
| | - Jin-A Lee
- Department of Biotechnology and Biological Sciences, Hannam University, Yuseong-gu, Daejeon, Republic of Korea
| | - Fen-Biao Gao
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, USA
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Dixson AC, Dawson TR, Di Vizio D, Weaver AM. Context-specific regulation of extracellular vesicle biogenesis and cargo selection. Nat Rev Mol Cell Biol 2023; 24:454-476. [PMID: 36765164 PMCID: PMC10330318 DOI: 10.1038/s41580-023-00576-0] [Citation(s) in RCA: 114] [Impact Index Per Article: 114.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2023] [Indexed: 02/12/2023]
Abstract
To coordinate, adapt and respond to biological signals, cells convey specific messages to other cells. An important aspect of cell-cell communication involves secretion of molecules into the extracellular space. How these molecules are selected for secretion has been a fundamental question in the membrane trafficking field for decades. Recently, extracellular vesicles (EVs) have been recognized as key players in intercellular communication, carrying not only membrane proteins and lipids but also RNAs, cytosolic proteins and other signalling molecules to recipient cells. To communicate the right message, it is essential to sort cargoes into EVs in a regulated and context-specific manner. In recent years, a wealth of lipidomic, proteomic and RNA sequencing studies have revealed that EV cargo composition differs depending upon the donor cell type, metabolic cues and disease states. Analyses of distinct cargo 'fingerprints' have uncovered mechanistic linkages between the activation of specific molecular pathways and cargo sorting. In addition, cell biology studies are beginning to reveal novel biogenesis mechanisms regulated by cellular context. Here, we review context-specific mechanisms of EV biogenesis and cargo sorting, focusing on how cell signalling and cell state influence which cellular components are ultimately targeted to EVs.
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Affiliation(s)
- Andrew C Dixson
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - T Renee Dawson
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Center for Extracellular Vesicle Research, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Dolores Di Vizio
- Department of Surgery, Division of Cancer Biology and Therapeutics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Alissa M Weaver
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Center for Extracellular Vesicle Research, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA.
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40
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Wang Y, Ren L, Bai H, Jin Q, Zhang L. Exosome-Autophagy Crosstalk in Enveloped Virus Infection. Int J Mol Sci 2023; 24:10618. [PMID: 37445802 DOI: 10.3390/ijms241310618] [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: 05/20/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
Exosomes, which are extracellular vesicles (EVs) predominantly present in bodily fluids, participate in various physiological processes. Autophagy, an intracellular degradation mechanism, eliminates proteins and damaged organelles by forming double-membrane autophagosomes. These autophagosomes subsequently merge with lysosomes for target degradation. The interaction between autophagy and endosomal/exosomal pathways can occur at different stages, exerting significant influences on normal physiology and human diseases. The interplay between exosomes and the autophagy pathway is intricate. Exosomes exhibit a cytoprotective role by inducing intracellular autophagy, while autophagy modulates the biogenesis and degradation of exosomes. Research indicates that exosomes and autophagy contribute to the infection process of numerous enveloped viruses. Enveloped viruses, comprising viral nucleic acid, proteins, or virions, can be encapsulated within exosomes and transferred between cells via exosomal transport. Consequently, exosomes play a crucial role in the infection of certain viral diseases. This review presents recent findings on the interplay between exosomes and autophagy, as well as their implications in the infection of enveloped viruses, thereby offering valuable insights into the pathogenesis and vaccine research of enveloped virus infection.
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Affiliation(s)
- Yuqi Wang
- Key Lab for Zoonoses Research, College of Animal Sciences, Ministry of Education, Jilin University, Changchun 130062, China
| | - Linzhu Ren
- Key Lab for Zoonoses Research, College of Animal Sciences, Ministry of Education, Jilin University, Changchun 130062, China
| | - Haocheng Bai
- Key Lab for Zoonoses Research, College of Animal Sciences, Ministry of Education, Jilin University, Changchun 130062, China
| | - Qing Jin
- Key Lab for Zoonoses Research, College of Animal Sciences, Ministry of Education, Jilin University, Changchun 130062, China
| | - Liying Zhang
- Key Lab for Zoonoses Research, College of Animal Sciences, Ministry of Education, Jilin University, Changchun 130062, China
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41
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Huang LJ, Zhan ST, Pan YQ, Bao W, Yang Y. The role of Vps4 in cancer development. Front Oncol 2023; 13:1203359. [PMID: 37404768 PMCID: PMC10315677 DOI: 10.3389/fonc.2023.1203359] [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: 04/10/2023] [Accepted: 05/30/2023] [Indexed: 07/06/2023] Open
Abstract
VPS4 series proteins play a crucial role in the endosomal sorting complexes required for the transport (ESCRT) pathway, which is responsible for sorting and trafficking cellular proteins and is involved in various cellular processes, including cytokinesis, membrane repair, and viral budding. VPS4 proteins are ATPases that mediate the final steps of membrane fission and protein sorting as part of the ESCRT machinery. They disassemble ESCRT-III filaments, which are vital for forming multivesicular bodies (MVBs) and the release of intraluminal vesicles (ILVs), ultimately leading to the sorting and degradation of various cellular proteins, including those involved in cancer development and progression. Recent studies have shown a potential relationship between VPS4 series proteins and cancer. Evidence suggests that these proteins may have crucial roles in cancer development and progression. Several experiments have explored the association between VPS4 and different types of cancer, including gastrointestinal and reproductive system tumors, providing insight into the underlying mechanisms. Understanding the structure and function of VPS4 series proteins is critical in assessing their potential role in cancer. The evidence supporting the involvement of VPS4 series proteins in cancer provides a promising avenue for future research and therapeutic development. However, further researches are necessary to fully understand the mechanisms underlying the relationship between VPS4 series proteins and cancer and to develop effective strategies for targeting these proteins in cancer therapy. This article aims to review the structures and functions of VPS4 series proteins and the previous experiments to analyze the relationship between VPS4 series proteins and cancer.
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Affiliation(s)
- Li Juan Huang
- Obstetrics and Gynecology Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai, China
| | - Shi Tong Zhan
- Obstetrics and Gynecology Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai, China
| | - Yu Qin Pan
- Surgical Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai, China
| | - Wei Bao
- Obstetrics and Gynecology Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai, China
| | - Ye Yang
- Obstetrics and Gynecology Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Hongkou, Shanghai, China
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42
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Kim M, Jo H, Jung GY, Oh SS. Molecular Complementarity of Proteomimetic Materials for Target-Specific Recognition and Recognition-Mediated Complex Functions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208309. [PMID: 36525617 DOI: 10.1002/adma.202208309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/29/2022] [Indexed: 06/02/2023]
Abstract
As biomolecules essential for sustaining life, proteins are generated from long chains of 20 different α-amino acids that are folded into unique 3D structures. In particular, many proteins have molecular recognition functions owing to their binding pockets, which have complementary shapes, charges, and polarities for specific targets, making these biopolymers unique and highly valuable for biomedical and biocatalytic applications. Based on the understanding of protein structures and microenvironments, molecular complementarity can be exhibited by synthesizable and modifiable materials. This has prompted researchers to explore the proteomimetic potentials of a diverse range of materials, including biologically available peptides and oligonucleotides, synthetic supramolecules, inorganic molecules, and related coordination networks. To fully resemble a protein, proteomimetic materials perform the molecular recognition to mediate complex molecular functions, such as allosteric regulation, signal transduction, enzymatic reactions, and stimuli-responsive motions; this can also expand the landscape of their potential bio-applications. This review focuses on the recognitive aspects of proteomimetic designs derived for individual materials and their conformations. Recent progress provides insights to help guide the development of advanced protein mimicry with material heterogeneity, design modularity, and tailored functionality. The perspectives and challenges of current proteomimetic designs and tools are also discussed in relation to future applications.
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Affiliation(s)
- Minsun Kim
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Hyesung Jo
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Gyoo Yeol Jung
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
| | - Seung Soo Oh
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea
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43
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Vp V, Kannan A, Perumal MK. Role of adipocyte-derived extracellular vesicles during the progression of liver inflammation to hepatocellular carcinoma. J Cell Physiol 2023; 238:1125-1140. [PMID: 36960683 DOI: 10.1002/jcp.31008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/03/2023] [Accepted: 03/11/2023] [Indexed: 03/25/2023]
Abstract
Extracellular vesicles are membrane-bound cargos that vary in size and are stably transported through various bodily fluids. Extracellular vesicles communicate information between the cells and organs. Extracellular vesicles from the diseased cells alter cellular responses of the recipient cells contributing to disease progression. In obesity, adipocytes become hypertrophic and the extracellular vesicles from these dysfunctional adipocytes showed altered cargo contents instigating pathophysiological response leading to chronic liver diseases. In this review, the role of adipocyte-derived extracellular vesicles on the progression of liver inflammation, fibrosis, cirrhosis, and hepatocellular carcinoma are extensively discussed. Newer approaches are crucial to take advantage of extracellular vesicles and their content as biomarkers to diagnose initial liver inflammation before reaching to an irreversible liver failure stage.
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Affiliation(s)
- Venkateish Vp
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Anbarasu Kannan
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Madan Kumar Perumal
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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44
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Zhuang L, Li C, Peng F, Xue E, Li W, Sun X, Chen P, Zhou Q, Xue L. Depletion of ESCRT ameliorates APP-induced AD-like symptoms in Drosophila. J Cell Physiol 2023. [PMID: 37183375 DOI: 10.1002/jcp.31035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/30/2023] [Accepted: 04/24/2023] [Indexed: 05/16/2023]
Abstract
The amyloid-β (Aβ) peptide, produced from amyloid precursor protein (APP) by β and γ-secretases, has been implicated in the etiology of Alzheimer's disease (AD). However, the precise intracellular trafficking pathway of APP and its subcellular locations to produce Aβ have remained unclear. To address these issues, we established fly AD models that recapitulated multiple AD-like symptoms by expressing human APP in the Drosophila nerve system. The ESCRT (endosomal sorting complexes required for transport) machinery regulates the sorting and trafficking of endocytosed proteins, yet its role in AD pathogenesis has not been explored in vivo. We found that knockdown of distinct ESCRT components ameliorated APP-induced morphological and behavioral defects, including impaired wing expansion, eye degeneration, dopamine neuron loss, locomotor disability, lifespan shortening, and cognitive deficits. Mechanistically, we showed that impaired ESCRT impeded APP's intracellular transportation from early endosomes to late endosomes, resulting in reduced Aβ production and amyloid deposit load. These data suggest that APP undergoes ESCRT-mediated endocytic trafficking, and Aβ is generated mainly in late endosomes. Our data provide the first in vivo evidence to support a physiological role of ESCRT in AD pathogenesis, suggesting that interfering with ESCRT machinery might be an alternative therapeutic strategy for AD.
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Affiliation(s)
- Luming Zhuang
- Shanghai Key Laboratory of Signaling and Diseases Research, School of Life Science and Technology, The First Rehabilitation Hospital of Shanghai, Tongji University, Shanghai, China
| | - Chenglin Li
- Shanghai Key Laboratory of Signaling and Diseases Research, School of Life Science and Technology, The First Rehabilitation Hospital of Shanghai, Tongji University, Shanghai, China
| | - Fei Peng
- Shanghai Key Laboratory of Signaling and Diseases Research, School of Life Science and Technology, The First Rehabilitation Hospital of Shanghai, Tongji University, Shanghai, China
| | - Elleen Xue
- Mathey College, Princeton University, Princeton, New Jersey, USA
| | - Wenzhe Li
- Shanghai Key Laboratory of Signaling and Diseases Research, School of Life Science and Technology, The First Rehabilitation Hospital of Shanghai, Tongji University, Shanghai, China
| | - Xinyue Sun
- Shanghai Key Laboratory of Signaling and Diseases Research, School of Life Science and Technology, The First Rehabilitation Hospital of Shanghai, Tongji University, Shanghai, China
| | - Ping Chen
- Shanghai Key Laboratory of Signaling and Diseases Research, School of Life Science and Technology, The First Rehabilitation Hospital of Shanghai, Tongji University, Shanghai, China
| | - Qian Zhou
- Shanghai Key Laboratory of Signaling and Diseases Research, School of Life Science and Technology, The First Rehabilitation Hospital of Shanghai, Tongji University, Shanghai, China
| | - Lei Xue
- Shanghai Key Laboratory of Signaling and Diseases Research, School of Life Science and Technology, The First Rehabilitation Hospital of Shanghai, Tongji University, Shanghai, China
- Zhuhai Precision Medical Center, Zhuhai People's Hospital, Guangdong, Zhuhai, China
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45
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Sontag EM, Morales-Polanco F, Chen JH, McDermott G, Dolan PT, Gestaut D, Le Gros MA, Larabell C, Frydman J. Nuclear and cytoplasmic spatial protein quality control is coordinated by nuclear-vacuolar junctions and perinuclear ESCRT. Nat Cell Biol 2023; 25:699-713. [PMID: 37081164 DOI: 10.1038/s41556-023-01128-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 03/14/2023] [Indexed: 04/22/2023]
Abstract
Effective protein quality control (PQC), essential for cellular health, relies on spatial sequestration of misfolded proteins into defined inclusions. Here we reveal the coordination of nuclear and cytoplasmic spatial PQC. Cytoplasmic misfolded proteins concentrate in a cytoplasmic juxtanuclear quality control compartment, while nuclear misfolded proteins sequester into an intranuclear quality control compartment (INQ). Particle tracking reveals that INQ and the juxtanuclear quality control compartment converge to face each other across the nuclear envelope at a site proximal to the nuclear-vacuolar junction marked by perinuclear ESCRT-II/III protein Chm7. Strikingly, convergence at nuclear-vacuolar junction contacts facilitates VPS4-dependent vacuolar clearance of misfolded cytoplasmic and nuclear proteins, the latter entailing extrusion of nuclear INQ into the vacuole. Finding that nuclear-vacuolar contact sites are cellular hubs of spatial PQC to facilitate vacuolar clearance of nuclear and cytoplasmic inclusions highlights the role of cellular architecture in proteostasis maintenance.
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Affiliation(s)
- Emily M Sontag
- Department of Biology, Stanford University, Stanford, CA, USA.
- Department of Biological Sciences, Marquette University, Milwaukee, WI, USA.
| | | | - Jian-Hua Chen
- Department of Anatomy, School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Gerry McDermott
- Department of Anatomy, School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Patrick T Dolan
- Department of Biology, Stanford University, Stanford, CA, USA
- Quantitative Virology and Evolution Unit, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - Daniel Gestaut
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Mark A Le Gros
- Department of Anatomy, School of Medicine, University of California San Francisco, San Francisco, CA, USA
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Carolyn Larabell
- Department of Anatomy, School of Medicine, University of California San Francisco, San Francisco, CA, USA
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Judith Frydman
- Department of Biology, Stanford University, Stanford, CA, USA.
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46
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Cortes-Galvez D, Dangerfield JA, Metzner C. Extracellular Vesicles and Their Membranes: Exosomes vs. Virus-Related Particles. MEMBRANES 2023; 13:397. [PMID: 37103824 PMCID: PMC10146078 DOI: 10.3390/membranes13040397] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Cells produce nanosized lipid membrane-enclosed vesicles which play important roles in intercellular communication. Interestingly, a certain type of extracellular vesicle, termed exosomes, share physical, chemical, and biological properties with enveloped virus particles. To date, most similarities have been discovered with lentiviral particles, however, other virus species also frequently interact with exosomes. In this review, we will take a closer look at the similarities and differences between exosomes and enveloped viral particles, with a focus on events taking place at the vesicle or virus membrane. Since these structures present an area with an opportunity for interaction with target cells, this is relevant for basic biology as well as any potential research or medical applications.
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Affiliation(s)
- Daniela Cortes-Galvez
- AG Histology and Embryology, Institute of Morphology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
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Hurtig F, Burgers TC, Cezanne A, Jiang X, Mol FN, Traparić J, Pulschen AA, Nierhaus T, Tarrason-Risa G, Harker-Kirschneck L, Löwe J, Šarić A, Vlijm R, Baum B. The patterned assembly and stepwise Vps4-mediated disassembly of composite ESCRT-III polymers drives archaeal cell division. SCIENCE ADVANCES 2023; 9:eade5224. [PMID: 36921039 PMCID: PMC10017037 DOI: 10.1126/sciadv.ade5224] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 02/14/2023] [Indexed: 05/13/2023]
Abstract
ESCRT-III family proteins form composite polymers that deform and cut membrane tubes in the context of a wide range of cell biological processes across the tree of life. In reconstituted systems, sequential changes in the composition of ESCRT-III polymers induced by the AAA-adenosine triphosphatase Vps4 have been shown to remodel membranes. However, it is not known how composite ESCRT-III polymers are organized and remodeled in space and time in a cellular context. Taking advantage of the relative simplicity of the ESCRT-III-dependent division system in Sulfolobus acidocaldarius, one of the closest experimentally tractable prokaryotic relatives of eukaryotes, we use super-resolution microscopy, electron microscopy, and computational modeling to show how CdvB/CdvB1/CdvB2 proteins form a precisely patterned composite ESCRT-III division ring, which undergoes stepwise Vps4-dependent disassembly and contracts to cut cells into two. These observations lead us to suggest sequential changes in a patterned composite polymer as a general mechanism of ESCRT-III-dependent membrane remodeling.
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Affiliation(s)
- Fredrik Hurtig
- Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | - Thomas C. Q. Burgers
- Molecular Biophysics, Zernike Institute for Advanced Materials, University of Groningen, 9747 AG Groningen, Netherlands
| | - Alice Cezanne
- Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | - Xiuyun Jiang
- Laboratory of Soft Matter Physics, The Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Frank N. Mol
- Molecular Biophysics, Zernike Institute for Advanced Materials, University of Groningen, 9747 AG Groningen, Netherlands
| | - Jovan Traparić
- Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | | | - Tim Nierhaus
- Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | | | - Lena Harker-Kirschneck
- University College London, Institute for the Physics of Living Systems, WC1E 6BT London, UK
| | - Jan Löwe
- Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | - Anđela Šarić
- Institute of Science and Technology Austria, 3400 Klosterneuburg, Austria
| | - Rifka Vlijm
- Molecular Biophysics, Zernike Institute for Advanced Materials, University of Groningen, 9747 AG Groningen, Netherlands
| | - Buzz Baum
- Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
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48
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Chen M, Lin S, Zhou C, Cui D, Haick H, Tang N. From Conventional to Microfluidic: Progress in Extracellular Vesicle Separation and Individual Characterization. Adv Healthc Mater 2023; 12:e2202437. [PMID: 36541411 DOI: 10.1002/adhm.202202437] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/07/2022] [Indexed: 12/24/2022]
Abstract
Extracellular vesicles (EVs) are nanoscale membrane vesicles, which contain a wide variety of cargo such as proteins, miRNAs, and lipids. A growing body of evidence suggests that EVs are promising biomarkers for disease diagnosis and therapeutic strategies. Although the excellent clinical value, their use in personalized healthcare practice is not yet feasible due to their highly heterogeneous nature. Taking the difficulty of isolation and the small size of EVs into account, the characterization of EVs at a single-particle level is both imperative and challenging. In a bid to address this critical point, more research has been directed into a microfluidic platform because of its inherent advantages in sensitivity, specificity, and throughput. This review discusses the biogenesis and heterogeneity of EVs and takes a broad view of state-of-the-art advances in microfluidics-based EV research, including not only EV separation, but also the single EV characterization of biophysical detection and biochemical analysis. To highlight the advantages of microfluidic techniques, conventional technologies are included for comparison. The current status of artificial intelligence (AI) for single EV characterization is then presented. Furthermore, the challenges and prospects of microfluidics and its combination with AI applications in single EV characterization are also discussed. In the foreseeable future, recent breakthroughs in microfluidic platforms are expected to pave the way for single EV analysis and improve applications for precision medicine.
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Affiliation(s)
- Mingrui Chen
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Shujing Lin
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Cheng Zhou
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Daxiang Cui
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Ning Tang
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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Swords S, Jia N, Norris A, Modi J, Cai Q, Grant BD. A Conserved Requirement for RME-8/DNAJC13 in Neuronal Autolysosome Reformation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.27.530319. [PMID: 36909501 PMCID: PMC10002637 DOI: 10.1101/2023.02.27.530319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Autophagosomes fuse with lysosomes, forming autolysosomes that degrade engulfed cargo. To maintain lysosomal capacity, autolysosome reformation (ALR) must regenerate lysosomes from autolysosomes using a membrane tubule-based process. Maintaining lysosomal capacity is required to maintain proteostasis and cellular health, especially in neurons where lysosomal dysfunction has been repeatedly implicated in neurodegenerative disease. Cell biological studies have linked the DNA-J domain Hsc70 co-chaperone RME-8/DNAJC13 to endosomal coat protein regulation, while human genetics studies have linked RME-8/DNAJC13 to neurological disease, including Parkinsonism and Essential Tremor. We report new analysis of the requirements for the RME-8/DNAJC13 protein in neurons, focusing on C. elegans mechanosensory neurons in the intact animal, and in primary mouse cortical neurons in culture. We find that loss of RME-8/DNAJC13 in both systems results in accumulation of grossly elongated autolysosomal tubules. Further C. elegans analysis revealed a similar autolysosome tubule accumulation defect in mutants known to be required for ALR in mammals, including bec-1/beclin and vps-15/PIK3R4/p150 that regulate type-III PI3-kinase VPS-34, and dyn-1/dynamin that severs ALR tubules. Clathrin is also an important ALR regulator implicated in autolysosome tubule formation and release. In C. elegans we found that loss of RME-8 causes severe depletion of clathrin from neuronal autolysosomes, a phenotype shared with bec-1 and vps-15 mutants. We conclude that RME-8/DNAJC13 plays a conserved but previously unrecognized role in autolysosome reformation, likely affecting ALR tubule initiation and/or severing. Additionally, in both systems, we found that loss of RME-8/DNAJC13 appeared to reduce autophagic flux, suggesting feedback regulation from ALR to autophagy. Our results connecting RME-8/DNAJC13 to ALR and autophagy provide a potential mechanism by which RME-8/DNAJC13 could influence neuronal health and the progression of neurodegenerative disease.
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Affiliation(s)
- Sierra Swords
- Department of Molecular Biology and Biochemistry Rutgers University, Piscataway, NJ USA, 08854
| | - Nuo Jia
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ USA, 08854
| | - Anne Norris
- Department of Molecular Biology and Biochemistry Rutgers University, Piscataway, NJ USA, 08854
| | - Jil Modi
- Department of Molecular Biology and Biochemistry Rutgers University, Piscataway, NJ USA, 08854
| | - Qian Cai
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ USA, 08854
| | - Barth D. Grant
- Department of Molecular Biology and Biochemistry Rutgers University, Piscataway, NJ USA, 08854
- Center for Lipid Research, New Brunswick, NJ USA 08901
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Hagey DW, El Andaloussi S. The promise and challenges of extracellular vesicles in the diagnosis of neurodegenerative diseases. HANDBOOK OF CLINICAL NEUROLOGY 2023; 193:227-241. [PMID: 36803813 DOI: 10.1016/b978-0-323-85555-6.00014-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Extracellular vesicles (EVs) have emerged as essential means of intercommunication for all cell types, and their role in CNS physiology is increasingly appreciated. Accumulating evidence has demonstrated that EVs play important roles in neural cell maintenance, plasticity, and growth. However, EVs have also been demonstrated to spread amyloids and inflammation characteristic of neurodegenerative disease. Such dual roles suggest that EVs may be prime candidates for neurodegenerative disease biomarker analysis. This is supported by several intrinsic properties of EVs: Populations can be enriched by capturing surface proteins from their cell of origin, their diverse cargo represent the complex intracellular states of the cells they derive from, and they can pass the blood-brain barrier. Despite this promise, there are important questions outstanding in this young field that will need to be answered before it can fulfill its potential. Namely, overcoming the technical challenges of isolating rare EV populations, the difficulties inherent in detecting neurodegeneration, and the ethical considerations of diagnosing asymptomatic individuals. Although daunting, succeeding to answer these questions has the potential to provide unprecedented insight and improved treatment of neurodegenerative disease in the future.
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Affiliation(s)
- Daniel W Hagey
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.
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