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An Z, Ding W. Syntaxin17 Restores Lysosomal Function and Inhibits Pyroptosis Caused by Acinetobacter baumannii. J Microbiol 2024; 62:315-325. [PMID: 38451450 DOI: 10.1007/s12275-024-00109-0] [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: 09/08/2023] [Revised: 12/12/2023] [Accepted: 01/04/2024] [Indexed: 03/08/2024]
Abstract
Acinetobacter baumannii (A. baumannii) causes autophagy flux disorder by degrading STX17, resulting in a serious inflammatory response. It remains unclear whether STX17 can alter the inflammatory response process by controlling autolysosome function. This study aimed to explore the role of STX17 in the regulation of pyroptosis induced by A. baumannii. Our findings indicate that overexpression of STX17 enhances autophagosome degradation, increases LAMP1 expression, reduces Cathepsin B release, and improves lysosomal function. Conversely, knockdown of STX17 suppresses autophagosome degradation, reduces LAMP1 expression, augments Cathepsin B release, and accelerates lysosomal dysfunction. In instances of A. baumannii infection, overexpression of STX17 was found to improve lysosomal function and reduce the expression of mature of GSDMD and IL-1β, along with the release of LDH, thus inhibiting pyroptosis caused by A. baumannii. Conversely, knockdown of STX17 led to increased lysosomal dysfunction and further enhanced the expression of mature of GSDMD and IL-1β, and increased the release of LDH, exacerbating pyroptosis induced by A. baumannii. These findings suggest that STX17 regulates pyroptosis induced by A. baumannii by modulating lysosomal function.
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Affiliation(s)
- Zhiyuan An
- Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, People's Republic of China.
| | - Wenyi Ding
- Department of Clinical Laboratory, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing, 100730, People's Republic of China
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2
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Bhutia KL, Ahmad M, Kisku A, Sudhan RA, Bhutia ND, Sharma VK, Prasad BD, Thudi M, Obročník O, Bárek V, Brestic M, Skalicky M, Gaber A, Hossain A. Shoot transcriptome revealed widespread differential expression and potential molecular mechanisms of chickpea ( Cicer arietinum L.) against Fusarium wilt. Front Microbiol 2024; 14:1265265. [PMID: 38370576 PMCID: PMC10870781 DOI: 10.3389/fmicb.2023.1265265] [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: 07/22/2023] [Accepted: 10/30/2023] [Indexed: 02/20/2024] Open
Abstract
Introduction The yield of chickpea is severely hampered by infection wilt caused by several races of Fusarium oxysporum f. sp. ciceris (Foc). Methods To understand the underlying molecular mechanisms of resistance against Foc4 Fusarium wilt, RNA sequencing-based shoot transcriptome data of two contrasting chickpea genotypes, namely KWR 108 (resistant) and GL 13001 (susceptible), were generated and analyzed. Results and Discussion The shoot transcriptome data showed 1,103 and 1,221 significant DEGs in chickpea genotypes KWR 108 and GL 13001, respectively. Among these, 495 and 608 genes were significantly down and up-regulated in genotypes KWR 108, and 427 and 794 genes were significantly down and up-regulated in genotype GL 13001. The gene ontology (GO) analysis of significant DEGs was performed and the GO of the top 50 DEGs in two contrasting chickpea genotypes showed the highest cellular components as membrane and nucleus, and molecular functions including nucleotide binding, metal ion binding, transferase, kinase, and oxidoreductase activity involved in biological processes such as phosphorylation, oxidation-reduction, cell redox homeostasis process, and DNA repair. Compared to the susceptible genotype which showed significant up-regulation of genes involved in processes like DNA repair, the significantly up-regulated DEGs of the resistant genotypes were involved in processes like energy metabolism and environmental adaptation, particularly host-pathogen interaction. This indicates an efficient utilization of environmental adaptation pathways, energy homeostasis, and stable DNA molecules as the strategy to cope with Fusarium wilt infection in chickpea. The findings of the study will be useful in targeting the genes in designing gene-based markers for association mapping with the traits of interest in chickpea under Fusarium wilt which could be efficiently utilized in marker-assisted breeding of chickpea, particularly against Foc4 Fusarium wilt.
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Affiliation(s)
- Karma L. Bhutia
- Department of Agricultural Biotechnology and Molecular Biology, CBS&H, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India
| | - Mahtab Ahmad
- Department of Agricultural Biotechnology and Molecular Biology, CBS&H, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India
| | - Anima Kisku
- Department of Agricultural Biotechnology and Molecular Biology, CBS&H, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India
| | - R. A. Sudhan
- Department of Agricultural Biotechnology and Molecular Biology, CBS&H, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India
| | - Nangsol D. Bhutia
- College of Horticulture and Forestry, Central Agricultural University (Imphal), Pasighat, Arunachal Pradesh, India
| | - V. K. Sharma
- Department of Agricultural Biotechnology and Molecular Biology, CBS&H, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India
| | - Bishun Deo Prasad
- Department of Agricultural Biotechnology and Molecular Biology, CBS&H, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India
| | - Mahendar Thudi
- Department of Agricultural Biotechnology and Molecular Biology, CBS&H, Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India
| | - Oliver Obročník
- Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Nitra, Slovakia
| | - Viliam Bárek
- Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Nitra, Slovakia
| | - Marian Brestic
- Institute of Plant and Environmental Sciences, Slovak University of Agriculture, Nitra, Slovakia
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Ahmed Gaber
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
| | - Akbar Hossain
- Division of Soil Science, Bangladesh Wheat and Maize Research Institute, Dinajpur, Bangladesh
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Gavilán E, Medina-Guzman R, Bahatyrevich-Kharitonik B, Ruano D. Protein Quality Control Systems and ER Stress as Key Players in SARS-CoV-2-Induced Neurodegeneration. Cells 2024; 13:123. [PMID: 38247815 PMCID: PMC10814689 DOI: 10.3390/cells13020123] [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: 11/29/2023] [Revised: 01/03/2024] [Accepted: 01/08/2024] [Indexed: 01/23/2024] Open
Abstract
The COVID-19 pandemic has brought to the forefront the intricate relationship between SARS-CoV-2 and its impact on neurological complications, including potential links to neurodegenerative processes, characterized by a dysfunction of the protein quality control systems and ER stress. This review article explores the role of protein quality control systems, such as the Unfolded Protein Response (UPR), the Endoplasmic Reticulum-Associated Degradation (ERAD), the Ubiquitin-Proteasome System (UPS), autophagy and the molecular chaperones, in SARS-CoV-2 infection. Our hypothesis suggests that SARS-CoV-2 produces ER stress and exploits the protein quality control systems, leading to a disruption in proteostasis that cannot be solved by the host cell. This disruption culminates in cell death and may represent a link between SARS-CoV-2 and neurodegeneration.
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Affiliation(s)
- Elena Gavilán
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla (US), 41012 Sevilla, Spain; (R.M.-G.); (B.B.-K.); (D.R.)
- Instituto de Biomedicina de Sevilla, IBIS, Hospital Universitario Virgen del Rocío, Junta de Andalucía, CSIC, University of Seville (US), 41013 Sevilla, Spain
| | - Rafael Medina-Guzman
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla (US), 41012 Sevilla, Spain; (R.M.-G.); (B.B.-K.); (D.R.)
| | - Bazhena Bahatyrevich-Kharitonik
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla (US), 41012 Sevilla, Spain; (R.M.-G.); (B.B.-K.); (D.R.)
- Instituto de Biomedicina de Sevilla, IBIS, Hospital Universitario Virgen del Rocío, Junta de Andalucía, CSIC, University of Seville (US), 41013 Sevilla, Spain
| | - Diego Ruano
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla (US), 41012 Sevilla, Spain; (R.M.-G.); (B.B.-K.); (D.R.)
- Instituto de Biomedicina de Sevilla, IBIS, Hospital Universitario Virgen del Rocío, Junta de Andalucía, CSIC, University of Seville (US), 41013 Sevilla, Spain
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Aguilera MO, Delgui LR, Reggiori F, Romano PS, Colombo MI. Autophagy as an innate immunity response against pathogens: a Tango dance. FEBS Lett 2024; 598:140-166. [PMID: 38101809 DOI: 10.1002/1873-3468.14788] [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: 08/23/2023] [Revised: 10/18/2023] [Accepted: 10/27/2023] [Indexed: 12/17/2023]
Abstract
Intracellular infections as well as changes in the cell nutritional environment are main events that trigger cellular stress responses. One crucial cell response to stress conditions is autophagy. During the last 30 years, several scenarios involving autophagy induction or inhibition over the course of an intracellular invasion by pathogens have been uncovered. In this review, we will present how this knowledge was gained by studying different microorganisms. We intend to discuss how the cell, via autophagy, tries to repel these attacks with the objective of destroying the intruder, but also how some pathogens have developed strategies to subvert this. These two fates can be compared with a Tango, a dance originated in Buenos Aires, Argentina, in which the partner dancers are in close connection. One of them is the leader, embracing and involving the partner, but the follower may respond escaping from the leader. This joint dance is indeed highly synchronized and controlled, perfectly reflecting the interaction between autophagy and microorganism.
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Affiliation(s)
- Milton O Aguilera
- Laboratorio de Mecanismos Moleculares Implicados en el Tráfico Vesicular y la Autofagia-Instituto de Histología y Embriología (IHEM), Universidad Nacional de Cuyo, CONICET, Mendoza, Argentina
- Facultad de Odontología, Microbiología, Parasitología e Inmunología, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Laura R Delgui
- Instituto de Histología y Embriología de Mendoza, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro Universitario M5502JMA, Universidad Nacional de Cuyo (UNCuyo), Mendoza, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo (UNCuyo), Mendoza, Argentina
| | - Fulvio Reggiori
- Department of Biomedicine, Aarhus University, Denmark
- Aarhus Institute of Advanced Studies (AIAS), Aarhus University, Denmark
| | - Patricia S Romano
- Laboratorio de Biología de Trypanosoma cruzi y la célula hospedadora - Instituto de Histología y Embriología de Mendoza, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro Universitario M5502JMA, Universidad Nacional de Cuyo (UNCuyo), Mendoza, Argentina
- Facultad de Ciencias Médicas, Centro Universitario M5502JMA, Universidad Nacional de Cuyo (UNCuyo), Mendoza, Argentina
| | - María I Colombo
- Laboratorio de Mecanismos Moleculares Implicados en el Tráfico Vesicular y la Autofagia-Instituto de Histología y Embriología (IHEM), Universidad Nacional de Cuyo, CONICET, Mendoza, Argentina
- Facultad de Ciencias Médicas, Centro Universitario M5502JMA, Universidad Nacional de Cuyo (UNCuyo), Mendoza, Argentina
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Jovanović I, Frantová N, Zouhar J. A sword or a buffet: plant endomembrane system in viral infections. FRONTIERS IN PLANT SCIENCE 2023; 14:1226498. [PMID: 37636115 PMCID: PMC10453817 DOI: 10.3389/fpls.2023.1226498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 07/25/2023] [Indexed: 08/29/2023]
Abstract
The plant endomembrane system is an elaborate collection of membrane-bound compartments that perform distinct tasks in plant growth and development, and in responses to abiotic and biotic stresses. Most plant viruses are positive-strand RNA viruses that remodel the host endomembrane system to establish intricate replication compartments. Their fundamental role is to create optimal conditions for viral replication, and to protect replication complexes and the cell-to-cell movement machinery from host defenses. In addition to the intracellular antiviral defense, represented mainly by RNA interference and effector-triggered immunity, recent findings indicate that plant antiviral immunity also includes membrane-localized receptor-like kinases that detect viral molecular patterns and trigger immune responses, which are similar to those observed for bacterial and fungal pathogens. Another recently identified part of plant antiviral defenses is executed by selective autophagy that mediates a specific degradation of viral proteins, resulting in an infection arrest. In a perpetual tug-of-war, certain host autophagy components may be exploited by viral proteins to support or protect an effective viral replication. In this review, we present recent advances in the understanding of the molecular interplay between viral components and plant endomembrane-associated pathways.
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Affiliation(s)
- Ivana Jovanović
- Department of Crop Science, Breeding and Plant Medicine, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Nicole Frantová
- Department of Crop Science, Breeding and Plant Medicine, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Jan Zouhar
- Central European Institute of Technology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
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Lee HJ, Choi H, Nowakowska A, Kang LW, Kim M, Kim YB. Antiviral Activity Against SARS-CoV-2 Variants Using in Silico and in Vitro Approaches. J Microbiol 2023; 61:703-711. [PMID: 37358709 DOI: 10.1007/s12275-023-00062-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/17/2023] [Accepted: 05/26/2023] [Indexed: 06/27/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emergence in 2019 led to global health crises and the persistent risk of viral mutations. To combat SARS-CoV-2 variants, researchers have explored new approaches to identifying potential targets for coronaviruses. This study aimed to identify SARS-CoV-2 inhibitors using drug repurposing. In silico studies and network pharmacology were conducted to validate targets and coronavirus-associated diseases to select potential candidates, and in vitro assays were performed to evaluate the antiviral effects of the candidate drugs to elucidate the mechanisms of the viruses at the molecular level and determine the effective antiviral drugs for them. Plaque and cytopathic effect reduction were evaluated, and real-time quantitative reverse transcription was used to evaluate the antiviral activity of the candidate drugs against SARS-CoV-2 variants in vitro. Finally, a comparison was made between the molecular docking binding affinities of fenofibrate and remdesivir (positive control) to conventional and identified targets validated from protein-protein interaction (PPI). Seven candidate drugs were obtained based on the biological targets of the coronavirus, and potential targets were identified by constructing complex disease targets and PPI networks. Among the candidates, fenofibrate exhibited the strongest inhibition effect 1 h after Vero E6 cell infection with SARS-CoV-2 variants. This study identified potential targets for coronavirus disease (COVID-19) and SARS-CoV-2 and suggested fenofibrate as a potential therapy for COVID-19.
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Affiliation(s)
- Hee-Jung Lee
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Hanul Choi
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Aleksandra Nowakowska
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Lin-Woo Kang
- Department of Biological Sciences, Konkuk University, Seoul, 05029, Republic of Korea
| | - Minjee Kim
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea.
| | - Young Bong Kim
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, 05029, Republic of Korea.
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7
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Tong X, Zhao JJ, Feng YL, Zou JZ, Ye J, Liu J, Han C, Li D, Wang XB. A selective autophagy receptor VISP1 induces symptom recovery by targeting viral silencing suppressors. Nat Commun 2023; 14:3852. [PMID: 37385991 PMCID: PMC10310818 DOI: 10.1038/s41467-023-39426-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 06/09/2023] [Indexed: 07/01/2023] Open
Abstract
Selective autophagy is a double-edged sword in antiviral immunity and regulated by various autophagy receptors. However, it remains unclear how to balance the opposite roles by one autophagy receptor. We previously identified a virus-induced small peptide called VISP1 as a selective autophagy receptor that facilitates virus infections by targeting components of antiviral RNA silencing. However, we show here that VISP1 can also inhibit virus infections by mediating autophagic degradation of viral suppressors of RNA silencing (VSRs). VISP1 targets the cucumber mosaic virus (CMV) 2b protein for degradation and attenuates its suppression activity on RNA silencing. Knockout and overexpression of VISP1 exhibit compromised and enhanced resistance against late infection of CMV, respectively. Consequently, VISP1 induces symptom recovery from CMV infection by triggering 2b turnover. VISP1 also targets the C2/AC2 VSRs of two geminiviruses and enhances antiviral immunity. Together, VISP1 induces symptom recovery from severe infections of plant viruses through controlling VSR accumulation.
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Affiliation(s)
- Xin Tong
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
- College of Plant Protection, China Agricultural University, 100193, Beijing, China
| | - Jia-Jia Zhao
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Ya-Lan Feng
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Jing-Ze Zou
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Jian Ye
- State Key laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Junfeng Liu
- College of Plant Protection, China Agricultural University, 100193, Beijing, China
| | - Chenggui Han
- College of Plant Protection, China Agricultural University, 100193, Beijing, China
| | - Dawei Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Xian-Bing Wang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, 100193, Beijing, China.
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Interplay between Autophagy and Herpes Simplex Virus Type 1: ICP34.5, One of the Main Actors. Int J Mol Sci 2022; 23:ijms232113643. [DOI: 10.3390/ijms232113643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/21/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
Herpes simplex virus type 1 (HSV-1) is a neurotropic virus that occasionally may spread to the central nervous system (CNS), being the most common cause of sporadic encephalitis. One of the main neurovirulence factors of HSV-1 is the protein ICP34.5, which although it initially seems to be relevant only in neuronal infections, it can also promote viral replication in non-neuronal cells. New ICP34.5 functions have been discovered during recent years, and some of them have been questioned. This review describes the mechanisms of ICP34.5 to control cellular antiviral responses and debates its most controversial functions. One of the most discussed roles of ICP34.5 is autophagy inhibition. Although autophagy is considered a defense mechanism against viral infections, current evidence suggests that this antiviral function is only one side of the coin. Different types of autophagic pathways interact with HSV-1 impairing or enhancing the infection, and both the virus and the host cell modulate these pathways to tip the scales in its favor. In this review, we summarize the recent progress on the interplay between autophagy and HSV-1, focusing on the intricate role of ICP34.5 in the modulation of this pathway to fight the battle against cellular defenses.
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Abstract
Neurodegenerative diseases (NDs) such as Alzheimer’s and Parkinson’s disease are fatal neurological diseases that can be of idiopathic, genetic, or even infectious origin, as in the case of transmissible spongiform encephalopathies. The etiological factors that lead to neurodegeneration remain unknown but likely involve a combination of aging, genetic risk factors, and environmental stressors. Accumulating evidence hints at an association of viruses with neurodegenerative disorders and suggests that virus-induced neuroinflammation and perturbation of neuronal protein quality control can be involved in the early steps of disease development. In this review, we focus on emerging evidence for a correlation between NDs and viral infection and discuss how viral manipulations of cellular processes can affect the formation and dissemination of disease-associated protein aggregates.
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Affiliation(s)
- Pascal Leblanc
- Institut NeuroMyoGène INMG-PGNM, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, Inserm U1315, Université Claude Bernard UCBL-Lyon1, Faculté de Médecine Rockefeller, Lyon, France
- * E-mail: (PL); (IMV)
| | - Ina Maja Vorberg
- German Center for Neurodegenerative Diseases Bonn (DZNE), Bonn, Germany
- Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
- * E-mail: (PL); (IMV)
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Zenke K, Okinaka Y. Multiple isoforms of HSP70 and HSP90 required for betanodavirus multiplication in medaka cells. Arch Virol 2022; 167:1961-1975. [PMID: 35752988 DOI: 10.1007/s00705-022-05489-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/18/2022] [Indexed: 11/28/2022]
Abstract
Heat shock proteins (HSPs) are molecular chaperones that have recently been shown to function as host factors (HFs) for virus multiplication in fish as well as in mammals, plants, and insects. HSPs are classified into families, and each family has multiple isoforms. However, no comprehensive studies have been performed to clarify the biological importance of these multiple isoforms for fish virus multiplication. Betanodaviruses are the causative agents of viral nervous necrosis in cultured marine fish and cause very high mortality. Although the viral genome and encoded proteins have been characterized extensively, information on HFs for these viruses is limited. In this study, therefore, we focused on the HSP70 and HSP90 families to examine the importance of their isoforms for betanodavirus multiplication. We found that HSP inhibitors (17-AAG, radicicol, and quercetin) suppressed viral RNA replication and production of progeny virus in infected medaka (Oryzias latipes) cells. Thermal stress or virus infection resulted in increased expression of some isoform genes and facilitated virus multiplication. Furthermore, overexpression and knockdown of some isoform genes revealed that the isoforms HSP70-1, HSP70-2, HSP70-5, HSP90-α1, HSP90-α2, and HSP90-β play positive roles in virus multiplication in medaka. Collectively, these results suggest that multiple isoforms of fish HPSs serve as HFs for betanodavirus multiplication.
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Affiliation(s)
- Kosuke Zenke
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan.,Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan
| | - Yasushi Okinaka
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan.
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Shabbir R, Zhaoli L, Yueyu X, Zihao S, Pinghua C. Transcriptome Analysis of Sugarcane Response to Sugarcane Yellow Leaf Virus Infection Transmitted by the Vector Melanaphis sacchari. FRONTIERS IN PLANT SCIENCE 2022; 13:921674. [PMID: 35774818 PMCID: PMC9237618 DOI: 10.3389/fpls.2022.921674] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Sugarcane yellow leaf disease severely affects sugarcane production. As a viral disease, the pathogen sugarcane yellow leaf virus can only be transmitted by aphid vectors rather than mechanical means. To understand the sugarcane responses to ScYLV infection, the corresponding transcriptomic profile of ScYLV-infected and ScYLV-free plants were analyzed with RNA-Seq technology. In this study, Melanaphis sacchari was used as the vector to transmit ScYLV to the susceptible sugarcane cultivar CP72-1210 and transcriptome was sequenced as well as differentially expressed genes between disease-infected and non-infected sugarcane plants were investigated. A total of 1,22,593 genes were assembled, of which 1,630 genes were differentially expressed. Among DEGs, 1,622 were upregulated and eight were downregulated that were further annotated with GO, KEGG, KOG, PFAM, SwissProt, and Nr databases. The expression levels of DEGs in the three KEGG pathways, namely endocytosis, PEX protein synthesis, and endoplasmic reticulum stress response to viral protein synthesis were observed. Interestingly, it was found that the yellow leaf virus could induce the formation of autophagosomes by LC3, promoted by ER stress, and may be related to the replication of viral RNA. We tested 63 DEGs in this research. The qRT-PCR results showed that two were downregulated and 45 were upregulated in response to the ScYLV infection. This study will not only offer an overall comprehension of sugarcane responses to ScYLV infection at the gene expression level but also increase the chances to block the transmission of ScYLV for use in further molecular biology techniques and will aid in increasing the resistance of plants against ScYLV.
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Affiliation(s)
- Rubab Shabbir
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, National Engineering Research Center of Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Lin Zhaoli
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, National Engineering Research Center of Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xu Yueyu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, National Engineering Research Center of Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Sun Zihao
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, National Engineering Research Center of Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Chen Pinghua
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, National Engineering Research Center of Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
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