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Bultelle F, Le Saux A, David E, Tanguy A, Devin S, Olivier S, Poret A, Chan P, Louis F, Delahaut L, Pain-Devin S, Péden R, Vaudry D, Le Foll F, Rocher B. Cadmium Highlights Common and Specific Responses of Two Freshwater Sentinel Species, Dreissena polymorpha and Dreissena rostriformis bugensis. Proteomes 2024; 12:10. [PMID: 38651369 PMCID: PMC11036304 DOI: 10.3390/proteomes12020010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/20/2024] [Accepted: 03/18/2024] [Indexed: 04/25/2024] Open
Abstract
Zebra mussel (ZM), Dreissena polymorpha, commonly used as a sentinel species in freshwater biomonitoring, is now in competition for habitat with quagga mussel (QM), Dreissena rostriformis bugensis. This raises the question of the quagga mussel's use in environmental survey. To better characterise QM response to stress compared with ZM, both species were exposed to cadmium (100 µg·L-1), a classic pollutant, for 7 days under controlled conditions. The gill proteomes were analysed using two-dimensional electrophoresis coupled with mass spectrometry. For ZM, 81 out of 88 proteoforms of variable abundance were identified using mass spectrometry, and for QM, 105 out of 134. Interestingly, the proteomic response amplitude varied drastically, with 5.6% of proteoforms of variable abundance (DAPs) in ZM versus 9.4% in QM. QM also exhibited greater cadmium accumulation. Only 12 common DAPs were observed. Several short proteoforms were detected, suggesting proteolysis. Functional analysis is consistent with the pleiotropic effects of the toxic metal ion cadmium, with alterations in sulphur and glutathione metabolisms, cellular calcium signalling, cytoskeletal dynamics, energy production, chaperone activation, and membrane events with numerous proteins involved in trafficking and endocytosis/exocytosis processes. Beyond common responses, the sister species display distinct reactions, with cellular response to stress being the main category involved in ZM as opposed to calcium and cytoskeleton alterations in QM. Moreover, QM exhibited greater evidence of proteolysis and cell death. Overall, these results suggest that QM has a weaker stress response capacity than ZM.
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Affiliation(s)
- Florence Bultelle
- UMR-I 02 INERIS-SEBIO, UFR ST, Scale FR-CNRS 3730, Le Havre Normandie University, 76063 Le Havre, France (B.R.)
| | - Aimie Le Saux
- UMR-I 02 INERIS-SEBIO, UFR ST, Scale FR-CNRS 3730, Le Havre Normandie University, 76063 Le Havre, France (B.R.)
| | - Elise David
- UMR-I 02 INERIS-SEBIO, UFR SEN, Reims Champagne-Ardenne University, 51100 Reims, France; (E.D.)
| | - Arnaud Tanguy
- UMR 7144, CNRS, Station Biologique de Roscoff, Sorbonne University, 29680 Roscoff, France;
| | - Simon Devin
- LIEC, CNRS, UFR SCIFA, Lorraine University, 57000 Metz, France; (S.D.)
| | - Stéphanie Olivier
- UMR-I 02 INERIS-SEBIO, UFR ST, Scale FR-CNRS 3730, Le Havre Normandie University, 76063 Le Havre, France (B.R.)
| | - Agnès Poret
- UMR-I 02 INERIS-SEBIO, UFR ST, Scale FR-CNRS 3730, Le Havre Normandie University, 76063 Le Havre, France (B.R.)
| | - Philippe Chan
- INSERM US 51, CNRS UAR 2026, HeRacLeS, Rouen Normandie University, 76821 Mont-Saint-Aignan, France
- PISSARO IRIB, Rouen Normandie University, 76821 Mont-Saint-Aignan, France
| | - Fanny Louis
- UMR-I 02 INERIS-SEBIO, UFR SEN, Reims Champagne-Ardenne University, 51100 Reims, France; (E.D.)
- LIEC, CNRS, UFR SCIFA, Lorraine University, 57000 Metz, France; (S.D.)
| | - Laurence Delahaut
- UMR-I 02 INERIS-SEBIO, UFR SEN, Reims Champagne-Ardenne University, 51100 Reims, France; (E.D.)
| | | | - Romain Péden
- UMR-I 02 INERIS-SEBIO, UFR SEN, Reims Champagne-Ardenne University, 51100 Reims, France; (E.D.)
| | - David Vaudry
- INSERM U982 DC2N, Rouen Normandie University, 76821 Mont-Saint-Aignan, France
| | - Frank Le Foll
- UMR-I 02 INERIS-SEBIO, UFR ST, Scale FR-CNRS 3730, Le Havre Normandie University, 76063 Le Havre, France (B.R.)
| | - Béatrice Rocher
- UMR-I 02 INERIS-SEBIO, UFR ST, Scale FR-CNRS 3730, Le Havre Normandie University, 76063 Le Havre, France (B.R.)
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Lechuga S, Marino-Melendez A, Naydenov NG, Zafar A, Braga-Neto MB, Ivanov AI. Regulation of Epithelial and Endothelial Barriers by Molecular Chaperones. Cells 2024; 13:370. [PMID: 38474334 PMCID: PMC10931179 DOI: 10.3390/cells13050370] [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: 01/05/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
The integrity and permeability of epithelial and endothelial barriers depend on the formation of tight junctions, adherens junctions, and a junction-associated cytoskeleton. The establishment of this junction-cytoskeletal module relies on the correct folding and oligomerization of its protein components. Molecular chaperones are known regulators of protein folding and complex formation in different cellular compartments. Mammalian cells possess an elaborate chaperone network consisting of several hundred chaperones and co-chaperones. Only a small part of this network has been linked, however, to the regulation of intercellular adhesions, and the systematic analysis of chaperone functions at epithelial and endothelial barriers is lacking. This review describes the functions and mechanisms of the chaperone-assisted regulation of intercellular junctions. The major focus of this review is on heat shock protein chaperones, their co-chaperones, and chaperonins since these molecules are the focus of the majority of the articles published on the chaperone-mediated control of tissue barriers. This review discusses the roles of chaperones in the regulation of the steady-state integrity of epithelial and vascular barriers as well as the disruption of these barriers by pathogenic factors and extracellular stressors. Since cytoskeletal coupling is essential for junctional integrity and remodeling, chaperone-assisted assembly of the actomyosin cytoskeleton is also discussed.
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Affiliation(s)
- Susana Lechuga
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
| | - Armando Marino-Melendez
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
| | - Nayden G. Naydenov
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
| | - Atif Zafar
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
| | - Manuel B. Braga-Neto
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Disease Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Andrei I. Ivanov
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA; (S.L.); (A.M.-M.); (N.G.N.); (A.Z.); (M.B.B.-N.)
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Lin L, Tijjani I, Guo H, An Q, Cao J, Chen X, Liu W, Wang Z, Norvienyeku J. Cytoplasmic dynein1 intermediate-chain2 regulates cellular trafficking and physiopathological development in Magnaporthe oryzae. iScience 2023; 26:106050. [PMID: 36866040 PMCID: PMC9971887 DOI: 10.1016/j.isci.2023.106050] [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: 06/23/2022] [Revised: 08/09/2022] [Accepted: 01/20/2023] [Indexed: 02/12/2023] Open
Abstract
The cytoplasmic dynein 1, a minus end-directed motor protein, is an essential microtubule-based molecular motor that mediates the movement of molecules to intracellular destinations in eukaryotes. However, the role of dynein in the pathogenesis of Magnaporthe oryzae is unknown. Here, we identified cytoplasmic dynein 1 intermediate-chain 2 genes in M. oryzae and functionally characterized it using genetic manipulations, and biochemical approaches. We observed that targeted the deletion of MoDYNC1I2 caused significant vegetative growth defects, abolished conidiation, and rendered the ΔModync1I2 strains non-pathogenic. Microscopic examinations revealed significant defects in microtubule network organization, nuclear positioning, and endocytosis ΔModync1I2 strains. MoDync1I2 is localized exclusively to microtubules during fungal developmental stages but co-localizes with the histone OsHis1 in plant nuclei upon infection. The exogenous expression of a histone gene, MoHis1, restored the homeostatic phenotypes of ΔModync1I2 strains but not pathogenicity. These findings could facilitate the development of dynein-directed remedies for managing the rice blast disease.
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Affiliation(s)
- Lily Lin
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China,State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ibrahim Tijjani
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hengyuan Guo
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou, China
| | - Qiuli An
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiaying Cao
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaomin Chen
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wende Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zonghua Wang
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China,Institute of Oceanography, Minjiang University, Fuzhou 350108, China,Corresponding author
| | - Justice Norvienyeku
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou, China,Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, China,Corresponding author
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Romano LEL, Aw WY, Hixson KM, Novoselova TV, Havener TM, Howell S, Taylor-Blake B, Hall CL, Xing L, Beri J, Nethisinghe S, Perna L, Hatimy A, Altadonna GC, Graves LM, Herring LE, Hickey AJ, Thalassinos K, Chapple JP, Wolter JM. Multi-omic profiling reveals the ataxia protein sacsin is required for integrin trafficking and synaptic organization. Cell Rep 2022; 41:111580. [PMID: 36323248 PMCID: PMC9647044 DOI: 10.1016/j.celrep.2022.111580] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 06/30/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022] Open
Abstract
Autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) is a childhood-onset cerebellar ataxia caused by mutations in SACS, which encodes the protein sacsin. Cellular ARSACS phenotypes include mitochondrial dysfunction, intermediate filament disorganization, and progressive death of cerebellar Purkinje neurons. It is unclear why the loss of sacsin causes these deficits or why they manifest as cerebellar ataxia. Here, we perform multi-omic profiling in sacsin knockout (KO) cells and identify alterations in microtubule dynamics and mislocalization of focal adhesion (FA) proteins, including multiple integrins. Deficits in FA structure, signaling, and function can be rescued by targeting PTEN, a negative regulator of FA signaling. ARSACS mice possess mislocalization of ITGA1 in Purkinje neurons and synaptic disorganization in the deep cerebellar nucleus (DCN). The sacsin interactome reveals that sacsin regulates interactions between cytoskeletal and synaptic adhesion proteins. Our findings suggest that disrupted trafficking of synaptic adhesion proteins is a causal molecular deficit in ARSACS.
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Affiliation(s)
- Lisa E L Romano
- Faculty of Medicine and Dentistry, William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Wen Yih Aw
- UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Kathryn M Hixson
- UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Tatiana V Novoselova
- Faculty of Medicine and Dentistry, William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK; Department of Natural Sciences, Faculty of Science and Technology, Middlesex University, London NW4 4BT, UK
| | - Tammy M Havener
- UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Stefanie Howell
- UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Bonnie Taylor-Blake
- UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Charlotte L Hall
- Faculty of Medicine and Dentistry, William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Lei Xing
- UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Josh Beri
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; UNC Michael Hooker Proteomics Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Suran Nethisinghe
- Faculty of Medicine and Dentistry, William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Laura Perna
- Faculty of Medicine and Dentistry, William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Abubakar Hatimy
- Institute of Structural and Molecular Biology, Division of Biosciences, University College London, London WC1E 6BT, UK
| | - Ginevra Chioccioli Altadonna
- Faculty of Medicine and Dentistry, William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Lee M Graves
- Institute of Structural and Molecular Biology, Division of Biosciences, University College London, London WC1E 6BT, UK; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Laura E Herring
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; UNC Michael Hooker Proteomics Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Anthony J Hickey
- UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Konstantinos Thalassinos
- Institute of Structural and Molecular Biology, Division of Biosciences, University College London, London WC1E 6BT, UK; Institute of Structural and Molecular Biology, Birkbeck College, University of London, London WC1E 7HX, UK
| | - J Paul Chapple
- Faculty of Medicine and Dentistry, William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK.
| | - Justin M Wolter
- UNC Catalyst for Rare Diseases, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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Moreira C, Stillman JH, Lima FP, Xavier R, Seabra R, Gomes F, Veríssimo A, Silva SM. Transcriptomic response of the intertidal limpet Patella vulgata to temperature extremes. J Therm Biol 2021; 101:103096. [PMID: 34879914 DOI: 10.1016/j.jtherbio.2021.103096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/25/2021] [Accepted: 09/14/2021] [Indexed: 12/13/2022]
Abstract
Global warming is challenging wild species in land and water. In the intertidal zone, species are already living at their thermal limits, being vulnerable even to small increases in maximum habitat temperatures. Knowledge of the mechanisms by which many intertidal zone species cope with elevated temperatures is limited. We analysed the molecular thermal stress response of the limpet Patella vulgata under slight and frequent (one-day), and extreme and rare (three-day) warming events. Using RNA-seq to assess differential gene expression among treatments, differing molecular responses were obtained in the two treatments, with more changes in gene expression after the three-day event; with one-third of the differentially expressed transcripts being down-regulated. However, across treatments we observed shifts in gene expression for common aspects of the heat stress response including intra-cellular communication, protein chaperoning, proteolysis and cell cycle arrest. Of the 71,675 transcripts obtained, only 259 were differentially expressed after both heating events. From these, 218 defined the core group (i.e. genes induced by thermal stress with similar expression patterns irrespective of the magnitude of the warming event). The core group was composed of already well-studied genes in heat stress responses in intertidal organisms (e.g. heat shock proteins), but also genes from less explored metabolic pathways, e.g. the ubiquitin system, which were also fundamental regardless of the magnitude of the imposed warming. Moreover, we have also identified 41 signaling genes (i.e. a set of genes responding to both events and with expression patterns specific to the intensity of thermal stress), principally including genes involved in the maintenance of extracellular structure that have previously not been identified as part of the response to thermal stress in intertidal zone organisms. These signaling genes will be useful heat stress molecular biomarkers for monitoring heat stress in natural populations.
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Affiliation(s)
- Catarina Moreira
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Jonathon H Stillman
- Estuary & Ocean Science Center and Department of Biology, San Francisco State University, And Department of Integrative Biology, University of California Berkeley, California, USA
| | - Fernando P Lima
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Raquel Xavier
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Rui Seabra
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Filipa Gomes
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Ana Veríssimo
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Sofia Marques Silva
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal.
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Mazaira GI, Piwien Pilipuk G, Galigniana MD. Corticosteroid receptors as a model for the Hsp90•immunophilin-based transport machinery. Trends Endocrinol Metab 2021; 32:827-838. [PMID: 34420854 DOI: 10.1016/j.tem.2021.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022]
Abstract
Steroid receptors form soluble heterocomplexes with the 90-kDa heat-shock protein (Hsp90) and other chaperones and co-chaperones. The assembly and composition of the oligomer is influenced by the presence and nature of the bound steroid. Although these receptors shuttle dynamically in and out of the nucleus, their primary localization in the absence of steroid can be mainly cytoplasmic, mainly nuclear, or partitioned into both cellular compartments. Upon steroid binding, receptors become localized to the nucleus via the transportosome, a retrotransport molecular machinery that comprises Hsp90, a high-molecular-weight immunophilin, and dynein motors. This molecular machinery, first evidenced in steroid receptors, can also be used by other soluble proteins. In this review, we dissect the complete model of this transport machinery system.
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Affiliation(s)
- Gisela I Mazaira
- Departamento de Química Biológica de la Facultad de Ciencias Exactas y Naturales de la Universidad de Buenos Aires, Buenos Aires, Argentina
| | | | - Mario D Galigniana
- Departamento de Química Biológica de la Facultad de Ciencias Exactas y Naturales de la Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Biología y Medicina Experimental-CONICET, Buenos Aires, Argentina.
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Locatelli L, Maier JAM. Cytoskeletal Remodeling Mimics Endothelial Response to Microgravity. Front Cell Dev Biol 2021; 9:733573. [PMID: 34568340 PMCID: PMC8458731 DOI: 10.3389/fcell.2021.733573] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/13/2021] [Indexed: 12/26/2022] Open
Abstract
Mechanical cues contribute to the maintenance of a healthy endothelium, which is essential for vascular integrity. Indeed endothelial cells are mechanosensors that integrate the forces in the form of biochemical signals. The cytoskeleton is fundamental in sensing mechanical stimuli and activating specific signaling pathways. Because the cytoskeleton is very rapidly remodeled in endothelial cells exposed to microgravity, we investigated whether the disruption of actin polymerization by cytochalasin D in 1g condition triggers and orchestrates responses similar to those occurring in micro- and macro-vascular endothelial cells upon gravitational unloading. We focused our attention on the effect of simulated microgravity on stress proteins and transient receptor potential melastatin 7 (TRPM7), a cation channel that acts as a mechanosensor and modulates endothelial cell proliferation and stress response. Simulated microgravity downregulates TRPM7 in both cell types. However, 24 h of treatment with cytochalasin D decreases the amounts of TRPM7 only in macrovascular endothelial cells, suggesting that the regulation and the role of TRPM7 in microvascular cells are more complex than expected. The 24 h culture in the presence of cytochalasin D mimics the effect of simulated microgravity in modulating stress response in micro- and macro-vascular endothelial cells. We conclude that cytoskeletal disruption might mediate some effects of microgravity in endothelial cells.
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Affiliation(s)
- Laura Locatelli
- Department of Biomedical and Clinical Sciences L. Sacco, Università di Milano, Milan, Italy
| | - Jeanette A M Maier
- Department of Biomedical and Clinical Sciences L. Sacco, Università di Milano, Milan, Italy.,Interdisciplinary Centre for Nanostructured Materials and Interfaces, Università di Milano, Milan, Italy
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Cosio C, Degli-Esposti D, Almunia C, Gaillet V, Sartelet H, Armengaud J, Chaumot A, Geffard O, Geffard A. Subcellular Distribution of Dietary Methyl-Mercury in Gammarus fossarum and Its Impact on the Amphipod Proteome. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:10514-10523. [PMID: 34283579 DOI: 10.1021/acs.est.1c02385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The transfer of methyl-Hg (MeHg) from food is central for its effects in aquatic animals, but we still lack knowledge concerning its impact on invertebrate primary consumers. In aquatic environments, cell walls of plants are particularly recalcitrant to degradation and as such remain available as a food source for long periods. Here, the impact at the proteomic level of dietary MeHg in Gammarus fossarum was established and linked to subcellular distribution of Hg. Individuals of G. fossarum were fed with MeHg in cell wall or intracellular compartments of Elodea nuttallii. Hg concentrations in subcellular fractions were 2 to 6 times higher in animals fed with cell wall than intracellular compartments. At the higher concentrations tested, the proportion of Hg in metal-sensitive fraction increased from 30.0 ± 6.1 to 41.0 ± 5.7% for individuals fed with intracellular compartment, while biologically detoxified metal fraction increased from 30.0 ± 6.1 to 50.0 ± 2.8% when fed with cell wall compartment. Data suggested that several thresholds of proteomic response are triggered by increased bioaccumulation in each subcellular fraction in correlation with Hg exclusively bound to the metal-sensitive fraction, while the increase of biologically detoxified metal likely had a cost for fitness. Proteomics analysis supported that the different binding sites and speciation in shoots subsequently resulted in different fate and cellular toxicity pathways to consumers. Our data confirmed that Hg bound in cell walls of plants can be assimilated by G. fossarum, which is consistent with its feeding strategy, hence pointing cell walls as a significant source for Hg transfers and toxicity in primary consumers. The high accumulation of Hg in macrophytes makes them a risk for food web transfer in shallow ecosystems. The present results allowed gaining new insights into the effects and uptake mechanisms of MeHg in aquatic primary consumers.
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Affiliation(s)
- Claudia Cosio
- Université de Reims Champagne-Ardenne, UMR-I 02 INERIS-URCA-ULH SEBIO, Campus du Moulin de la Housse, BP 1039, Cedex, Reims 51687, France
| | | | - Christine Almunia
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 30200 Bagnols-sur-Cèze, France
| | - Véronique Gaillet
- Université de Reims Champagne-Ardenne, UMR-I 02 INERIS-URCA-ULH SEBIO, Campus du Moulin de la Housse, BP 1039, Cedex, Reims 51687, France
| | - Hervé Sartelet
- Université de Reims Champagne-Ardenne, UMR CNRS/URCA 7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Campus du Moulin de la Housse, BP 1039, Cedex, Reims 51687, France
| | - Jean Armengaud
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 30200 Bagnols-sur-Cèze, France
| | - Arnaud Chaumot
- INRAE, UR RiverLy, Laboratoire d'écotoxicologie, F-69625 Villeurbanne, France
| | - Olivier Geffard
- INRAE, UR RiverLy, Laboratoire d'écotoxicologie, F-69625 Villeurbanne, France
| | - Alain Geffard
- Université de Reims Champagne-Ardenne, UMR-I 02 INERIS-URCA-ULH SEBIO, Campus du Moulin de la Housse, BP 1039, Cedex, Reims 51687, France
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Galigniana MD. Molecular Pharmacology of the Youngest Member of the Nuclear Receptor Family: The Mineralocorticoid Receptor. NUCLEAR RECEPTORS 2021:1-21. [DOI: 10.1007/978-3-030-78315-0_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Abstract
Toxic metals remain a current important threat to aquatic ecosystems, despite regulatory efforts to reduce their release. Several toxic metals already appear in the list of priority substances polluting surface waters, while concerns arise from the increasing use of technology-critical metals such as metallic nanoparticles, rare-earth, and platinum group metals. In aquatic environments, various chemical, biological and physical processes determine the impact of metals on the biota. This review provides insights into responses to toxic metals recently reported in freshwater and marine animals. The specific emphasis is on: (i) common cellular and molecular responses; (ii) stress proteins; (iii) redox homeostasis; (iv) cytoskeleton rearrangement; (v) metabolism reshuffle; (vi) free cellular energy and mitochondrial metabolism; and (vi) immunity. These endpoints are promising, notably in multi-biomarker approaches to identify precise cellular toxicity pathways and anticipate the impact of environmental metal pollution.
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Regulation of FKBP51 and FKBP52 functions by post-translational modifications. Biochem Soc Trans 2020; 47:1815-1831. [PMID: 31754722 DOI: 10.1042/bst20190334] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 10/22/2019] [Accepted: 10/28/2019] [Indexed: 12/17/2022]
Abstract
FKBP51 and FKBP52 are two iconic members of the family of peptidyl-prolyl-(cis/trans)-isomerases (EC: 5.2.1.8), which comprises proteins that catalyze the cis/trans isomerization of peptidyl-prolyl peptide bonds in unfolded and partially folded polypeptide chains and native state proteins. Originally, both proteins have been studied as molecular chaperones belonging to the steroid receptor heterocomplex, where they were first discovered. In addition to their expected role in receptor folding and chaperoning, FKBP51 and FKBP52 are also involved in many biological processes, such as signal transduction, transcriptional regulation, protein transport, cancer development, and cell differentiation, just to mention a few examples. Recent studies have revealed that both proteins are subject of post-translational modifications such as phosphorylation, SUMOlyation, and acetylation. In this work, we summarize recent advances in the study of these immunophilins portraying them as scaffolding proteins capable to organize protein heterocomplexes, describing some of their antagonistic properties in the physiology of the cell, and the putative regulation of their properties by those post-translational modifications.
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12
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Stan RC, Bhatt DK, Camargo MM. Cellular Adaptation Relies on Regulatory Proteins Having Episodic Memory. Bioessays 2019; 42:e1900115. [DOI: 10.1002/bies.201900115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 11/06/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Razvan C. Stan
- Cantacuzino National Military‐Medical Institute for Research‐Development Bucharest 050096 Romania
- Department of ImmunologyUniversity of São Paulo São Paulo 05508‐900 Brazil
| | - Darshak K. Bhatt
- Faculty of Medical SciencesGroningen University Groningen 9700 AB The Netherlands
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13
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Proteomics Reveal the Profiles of Color Change in Brunfelsia acuminata Flowers. Int J Mol Sci 2019; 20:ijms20082000. [PMID: 31018626 PMCID: PMC6514780 DOI: 10.3390/ijms20082000] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/12/2019] [Accepted: 04/21/2019] [Indexed: 12/16/2022] Open
Abstract
Brunfelsia acuminata is a popular ornamental plant with different colors resulted from the rapid change of color after blooming. The petals at day one (purple), day three (white and purple) and day five (white) were used to analyze the reason of flower color change by a comparative proteomics approach, gas chromatography coupled to a time-of-flight mass analyzer (GC-TOF-MS) and quantitative real-time PCR (qRT-PCR). The results showed that the 52 identified proteins were classified into eight functional groups, 6% of which were related to the anthocyanin metabolic pathway. The expression levels of all anthocyanin proteins from the first day to fifth day were remarkably down-regulated, which was consistent with the changing patterns of the key genes (CHS, CHI and F3′5′H) in petals. Simultaneously, the main floral volatile components including Linalool and 2-Hexenal (E) were identified, and the contents of 2-Hexenal at day five increased dramatically. Moreover, the content of flavonoids and total phenolic increased at day five. The majority of the proteins associated with stress defense and senescence proteins were up-regulated and the activities of peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT) in the petals at day five were significantly higher than others. It was concluded that the competition in the precursors of metabolic pathways occurs and causes the flow of metabolite to the pathways of floral scent and lignin derived from the shikimate pathway or degrade into others. Therefore, the anthocyanin content significantly decreased, and the petal color changed from deep purple to white.
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14
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Cazzaniga A, Locatelli L, Castiglioni S, Maier JAM. The dynamic adaptation of primary human endothelial cells to simulated microgravity. FASEB J 2019; 33:5957-5966. [DOI: 10.1096/fj.201801586rr] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alessandra Cazzaniga
- Dipartimento di Scienze Biomediche e Cliniche L. SaccoUniversità di Milano Milano Italy
| | - Laura Locatelli
- Dipartimento di Scienze Biomediche e Cliniche L. SaccoUniversità di Milano Milano Italy
| | - Sara Castiglioni
- Dipartimento di Scienze Biomediche e Cliniche L. SaccoUniversità di Milano Milano Italy
| | - Jeanette A. M. Maier
- Dipartimento di Scienze Biomediche e Cliniche L. SaccoUniversità di Milano Milano Italy
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15
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Zgajnar NR, De Leo SA, Lotufo CM, Erlejman AG, Piwien-Pilipuk G, Galigniana MD. Biological Actions of the Hsp90-binding Immunophilins FKBP51 and FKBP52. Biomolecules 2019; 9:biom9020052. [PMID: 30717249 PMCID: PMC6406450 DOI: 10.3390/biom9020052] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/17/2019] [Indexed: 12/20/2022] Open
Abstract
Immunophilins are a family of proteins whose signature domain is the peptidylprolyl-isomerase domain. High molecular weight immunophilins are characterized by the additional presence of tetratricopeptide-repeats (TPR) through which they bind to the 90-kDa heat-shock protein (Hsp90), and via this chaperone, immunophilins contribute to the regulation of the biological functions of several client-proteins. Among these Hsp90-binding immunophilins, there are two highly homologous members named FKBP51 and FKBP52 (FK506-binding protein of 51-kDa and 52-kDa, respectively) that were first characterized as components of the Hsp90-based heterocomplex associated to steroid receptors. Afterwards, they emerged as likely contributors to a variety of other hormone-dependent diseases, stress-related pathologies, psychiatric disorders, cancer, and other syndromes characterized by misfolded proteins. The differential biological actions of these immunophilins have been assigned to the structurally similar, but functionally divergent enzymatic domain. Nonetheless, they also require the complementary input of the TPR domain, most likely due to their dependence with the association to Hsp90 as a functional unit. FKBP51 and FKBP52 regulate a variety of biological processes such as steroid receptor action, transcriptional activity, protein conformation, protein trafficking, cell differentiation, apoptosis, cancer progression, telomerase activity, cytoskeleton architecture, etc. In this article we discuss the biology of these events and some mechanistic aspects.
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Affiliation(s)
- Nadia R Zgajnar
- Instituto de Biología y Medicina Experimental/CONICET, Buenos Aires 1428, Argentina.
| | - Sonia A De Leo
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires 1428, Argentina.
| | - Cecilia M Lotufo
- Instituto de Biología y Medicina Experimental/CONICET, Buenos Aires 1428, Argentina.
| | - Alejandra G Erlejman
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires 1428, Argentina.
| | | | - Mario D Galigniana
- Instituto de Biología y Medicina Experimental/CONICET, Buenos Aires 1428, Argentina.
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires 1428, Argentina.
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16
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Galigniana MD. HSP90-Based Heterocomplex as Essential Regulator for Cancer Disease. HEAT SHOCK PROTEINS 2019:19-45. [DOI: 10.1007/978-3-030-23158-3_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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17
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Mazaira GI, Zgajnar NR, Lotufo CM, Daneri-Becerra C, Sivils JC, Soto OB, Cox MB, Galigniana MD. The Nuclear Receptor Field: A Historical Overview and Future Challenges. NUCLEAR RECEPTOR RESEARCH 2018; 5:101320. [PMID: 30148160 PMCID: PMC6108593 DOI: 10.11131/2018/101320] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this article we summarize the birth of the field of nuclear receptors, the discovery of untransformed and transformed isoforms of ligand-binding macromolecules, the discovery of the three-domain structure of the receptors, and the properties of the Hsp90-based heterocomplex responsible for the overall structure of the oligomeric receptor and many aspects of the biological effects. The discovery and properties of the subfamily of receptors called orphan receptors is also outlined. Novel molecular aspects of the mechanism of action of nuclear receptors and challenges to resolve in the near future are discussed.
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Affiliation(s)
- Gisela I. Mazaira
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (1428), Argentina
| | - Nadia R. Zgajnar
- Instituto de Biología y Medicina Experimental- CONICET. Buenos Aires (1428), Argentina
| | - Cecilia M. Lotufo
- Instituto de Biología y Medicina Experimental- CONICET. Buenos Aires (1428), Argentina
| | | | - Jeffrey C. Sivils
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX 79968, USA
| | - Olga B. Soto
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX 79968, USA
| | - Marc B. Cox
- Department of Biological Sciences and Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX 79968, USA
| | - Mario D. Galigniana
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (1428), Argentina
- Instituto de Biología y Medicina Experimental- CONICET. Buenos Aires (1428), Argentina
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18
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Guo YC, Wang YX, Ge YP, Yu LJ, Guo J. Analysis of subcellular structural tension in axonal growth of neurons. Rev Neurosci 2018; 29:125-137. [DOI: 10.1515/revneuro-2017-0047] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 08/05/2017] [Indexed: 01/08/2023]
Abstract
AbstractThe growth and regeneration of axons are the core processes of nervous system development and functional recovery. They are also related to certain physiological and pathological conditions. For decades, it has been the consensus that a new axon is formed by adding new material at the growth cone. However, using the existing technology, we have studied the structural tension of the nerve cell, which led us to hypothesize that some subcellular structural tensions contribute synergistically to axonal growth and regeneration. In this review, we classified the subcellular structural tension, osmotic pressure, microfilament and microtubule-dependent tension involved controllably in promoting axonal growth. A squeezing model was built to analyze the mechanical mechanism underlying axonal elongation, which may provide a new view of axonal growth and inspire further research.
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19
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Cox MB, Johnson JL. Evidence for Hsp90 Co-chaperones in Regulating Hsp90 Function and Promoting Client Protein Folding. Methods Mol Biol 2018; 1709:397-422. [PMID: 29177674 DOI: 10.1007/978-1-4939-7477-1_28] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Molecular chaperones are a diverse group of highly conserved proteins that transiently interact with partially folded polypeptide chains during normal cellular processes such as protein translation, translocation, and disassembly of protein complexes. Prior to folding or after denaturation, hydrophobic residues that are normally sequestered within a folded protein are exposed to the aqueous environment and are prone to aggregation or misfolding. Multiple classes of molecular chaperones, such as Hsp70s and Hsp40s, recognize and transiently bind polypeptides with exposed hydrophobic stretches in order to prevent misfolding. Other types of chaperones, such as Hsp90, have more specialized functions in that they appear to interact with only a subset of cellular proteins. This chapter focuses on the role of Hsp90 and partner co-chaperones in promoting the folding and activation of a diverse group of proteins with critical roles in cellular signaling and function.
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Affiliation(s)
- Marc B Cox
- Department of Biological Sciences, University of Texas at El Paso and the Border Biomedical Research Center, El Paso, TX, 79968, USA
| | - Jill L Johnson
- Department of Biological Sciences and the Center for Reproductive Biology, University of Idaho, Moscow, ID, 83844-3051, USA.
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20
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Lule S, Colpak A, Balci-Peynircioglu B, Gursoy-Ozdemir Y, Peker S, Kalyoncu U, Can A, Tekin N, Demiralp D, Dalkara T. Behçet Disease serum is immunoreactive to neurofilament medium which share common epitopes to bacterial HSP-65, a putative trigger. J Autoimmun 2017; 84:87-96. [DOI: 10.1016/j.jaut.2017.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/28/2017] [Accepted: 08/01/2017] [Indexed: 01/01/2023]
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21
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Comparison of cell cycle components, apoptosis and cytoskeleton-related molecules and therapeutic effects of flavopiridol and geldanamycin on the mouse fibroblast, lung cancer and embryonic stem cells. Tumour Biol 2016; 37:12423-12440. [DOI: 10.1007/s13277-016-5108-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 06/09/2016] [Indexed: 12/15/2022] Open
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22
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Chen H, Gao Z, He C, Xiang R, van Kuppevelt TH, Belting M, Zhang S. GRP75 upregulates clathrin-independent endocytosis through actin cytoskeleton reorganization mediated by the concurrent activation of Cdc42 and RhoA. Exp Cell Res 2016; 343:223-236. [DOI: 10.1016/j.yexcr.2016.04.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 04/05/2016] [Accepted: 04/12/2016] [Indexed: 11/15/2022]
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23
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Kongmanas K, Kruevaisayawan H, Saewu A, Sugeng C, Fernandes J, Souda P, Angel JB, Faull KF, Aitken RJ, Whitelegge J, Hardy D, Berger T, Baker MA, Tanphaichitr N. Proteomic Characterization of Pig Sperm Anterior Head Plasma Membrane Reveals Roles of Acrosomal Proteins in ZP3 Binding. J Cell Physiol 2015; 230:449-63. [PMID: 25078272 DOI: 10.1002/jcp.24728] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 07/25/2014] [Indexed: 11/12/2022]
Abstract
The sperm anterior head plasma membrane (APM) is the site where sperm first bind to the zona pellucida (ZP). This binding reaches the maximum following the sperm capacitation process. To gain a better understanding of the sperm-ZP binding mechanisms, we compared protein profiles obtained from mass spectrometry of APM vesicles isolated from non-capacitated and capacitated sperm. The results revealed that ZP-binding proteins were the most abundant group of proteins, with a number of them showing increased levels in capacitated sperm. Blue native gel electrophoresis and far-western blotting revealed presence of high molecular weight (HMW) protein complexes in APM vesicles of both non-capacitated and capacitated sperm, but the complexes (∼750-1300 kDa) from capacitated sperm possessed much higher binding capacity to pig ZP3 glycoprotein. Proteomic analyses indicated that a number of proteins known for their acrosome localization, including zonadhesin, proacrosin/acrosin and ACRBP, were components of capacitated APM HMW complexes, with zonadhesin being the most enriched protein. Our immunofluorescence results further demonstrated that a fraction of these acrosomal proteins was transported to the surface of live acrosome-intact sperm during capacitation. Co-immunoprecipitation indicated that zonadhesin, proacrosin/acrosin and ACRBP interacted with each other and they may traffic as a complex from the acrosome to the sperm surface. Finally, the significance of zonadhesin in the binding of APM HMW complexes to pig ZP3 was demonstrated; the binding ability was decreased following treatment of the complexes with anti-zonadhesin antibody. Our results suggested that acrosomal proteins, especially zonadhesin, played roles in the initial sperm-ZP binding during capacitation.
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Affiliation(s)
- Kessiri Kongmanas
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Biochemistry/Microbiology/Immunology, University of Ottawa, Ontario, Canada
| | - Hathairat Kruevaisayawan
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Anatomy, Faculty of Medical Sciences, Naresuan University, Phitsanulok, Thailand
| | - Arpornrad Saewu
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Biochemistry/Microbiology/Immunology, University of Ottawa, Ontario, Canada
| | - Clarissa Sugeng
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Biochemistry/Microbiology/Immunology, University of Ottawa, Ontario, Canada
| | - Jason Fernandes
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Biochemistry/Microbiology/Immunology, University of Ottawa, Ontario, Canada
| | - Puneet Souda
- Pasarow Mass Spectrometry Laboratory, University of California, Los Angeles, California
| | - Jonathan B Angel
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Biochemistry/Microbiology/Immunology, University of Ottawa, Ontario, Canada.,Division of Infectious Diseases, Ottawa Hospital-General Campus, Ottawa, Ontario, Canada
| | - Kym F Faull
- Pasarow Mass Spectrometry Laboratory, University of California, Los Angeles, California
| | - R John Aitken
- The ARC Centre of Excellence in Biotechnology and Development, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Julian Whitelegge
- Pasarow Mass Spectrometry Laboratory, University of California, Los Angeles, California
| | - Daniel Hardy
- Department of Cell Biology and Biochemistry, Health Sciences Center, Texas Tech University, Texas
| | - Trish Berger
- Department of Animal Science, University of California, Davis, California
| | - Mark A Baker
- The ARC Centre of Excellence in Biotechnology and Development, School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Nongnuj Tanphaichitr
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Biochemistry/Microbiology/Immunology, University of Ottawa, Ontario, Canada.,Department of Obstetrics and Gynaecology, University of Ottawa, Ontario, Canada
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24
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Haase M, Fitze G. HSP90AB1: Helping the good and the bad. Gene 2015; 575:171-86. [PMID: 26358502 DOI: 10.1016/j.gene.2015.08.063] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 07/30/2015] [Accepted: 08/27/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Michael Haase
- Department of Pediatric Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany.
| | - Guido Fitze
- Department of Pediatric Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
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25
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Yu K, Gong J, Huang C, Huang H, Ye H, Wang G, Zeng C. Characterization of CCTα and evaluating its expression in the mud crab Scylla paramamosain when challenged by low temperatures alone and in combination with high and low salinity. Cell Stress Chaperones 2015; 20:853-64. [PMID: 26122201 PMCID: PMC4529868 DOI: 10.1007/s12192-015-0612-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/10/2015] [Accepted: 06/11/2015] [Indexed: 11/28/2022] Open
Abstract
Chaperonin containing the T-complex polypeptide-1 (CCT), which is known to be involved in intracellular assembly and folding of proteins, is a class of chaperonin omnipresent in all forms of life. Previous studies showed that CCT played a vital role in cold hardiness of various animals. In order to understand the response of the polypeptide complex to low temperature challenge and other environmental stresses, a subunit of CCT (CCTα) was cloned from the mud crab Scylla paramamosain by expressed sequence tag (EST) analysis and rapid amplification of cDNA ends (RACE). The full-length cDNA SpCCTα was of 1972 bp and contained a 1668 bp open reading frame (ORF) encoding a polypeptide of 555 amino acids with four conserved motifs. The messenger ribonucleic acid (mRNA) levels of SpCCTα in ten tissues of adult S. paramamosain was subsequently examined and the highest expression was found in muscle, followed by gill, hepatopancreas, thoracic ganglion, hemocyte, heart, cerebral ganglion, stomach, eyestalk ganglion, and epidermis. The expressions of SpCCTα in the muscle of sub-adult crabs (pre-acclimated to 28 °C) subjected to the challenges of both lower temperatures (25, 20, 15, and 10 °C) alone and low temperatures (15 and 10 °C) in combination with salinity of 35 and 10 were further investigated by fluorescent quantitative real-time PCR (qPCR). It was revealed that when exposed to lower temperatures alone, the mRNA transcripts of the SpCCTα gene in the muscle were generally induced for significant higher expression at 10 °C treatment than the 25, 20, and 15 °C treatments; meanwhile, exposure to 15 °C also frequently led to significantly higher expression than those at 20 and 25 °C. This finding indicated that the up-regulation of SpCCTα was closely related to the cold hardiness of S. paramamosain. The results of an additional experiment challenging the sub-adult crabs with various combinations of low temperatures with different salinity conditions generally demonstrated that at both 10 and 15 °C, the expression of SpCCTα under the high salinity of 35 was significantly lower than that at low salinity of 10, implying that the damages caused by low temperatures with high salinity were less than that under low salinity.
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Affiliation(s)
- Kun Yu
- />College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005 China
| | - Jie Gong
- />College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005 China
| | - Chencui Huang
- />College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005 China
| | - Huiyang Huang
- />College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005 China
- />College of Marine and Environmental Sciences, James Cook University, Townsville, Queensland 4811 Australia
| | - Haihui Ye
- />College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005 China
- />College of Marine and Environmental Sciences, James Cook University, Townsville, Queensland 4811 Australia
| | - Guizhong Wang
- />College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005 China
| | - Chaoshu Zeng
- />College of Marine and Environmental Sciences, James Cook University, Townsville, Queensland 4811 Australia
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26
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Mazaira GI, Lagadari M, Erlejman AG, Galigniana MD. The Emerging Role of TPR-Domain Immunophilins in the Mechanism of Action of Steroid Receptors. NUCLEAR RECEPTOR RESEARCH 2014. [DOI: 10.11131/2014/101094] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- G. I. Mazaira
- Departamento de Química Biológica-IQUIBICEN, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M. Lagadari
- Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - A. G. Erlejman
- Departamento de Química Biológica-IQUIBICEN, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M. D. Galigniana
- Departamento de Química Biológica-IQUIBICEN, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
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27
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Kandratavicius L, Hallak JE, Carlotti CG, Assirati JA, Leite JP. Hippocampal expression of heat shock proteins in mesial temporal lobe epilepsy with psychiatric comorbidities and their relation to seizure outcome. Epilepsia 2014; 55:1834-43. [DOI: 10.1111/epi.12787] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2014] [Indexed: 01/03/2023]
Affiliation(s)
- Ludmyla Kandratavicius
- Department of Neurosciences and Behavior; Ribeirao Preto School of Medicine; University of Sao Paulo (USP); Ribeirao Preto Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); University of Sao Paulo (USP); Ribeirao Preto Brazil
| | - Jaime E. Hallak
- Department of Neurosciences and Behavior; Ribeirao Preto School of Medicine; University of Sao Paulo (USP); Ribeirao Preto Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); University of Sao Paulo (USP); Ribeirao Preto Brazil
- National Institute of Science and Technology in Translational Medicine (INCT-TM - CNPq); Ribeirao Preto Brazil
| | - Carlos G. Carlotti
- Department of Surgery; Ribeirao Preto School of Medicine; University of Sao Paulo (USP); Ribeirao Preto Brazil
| | - Joao A. Assirati
- Department of Surgery; Ribeirao Preto School of Medicine; University of Sao Paulo (USP); Ribeirao Preto Brazil
| | - Joao P. Leite
- Department of Neurosciences and Behavior; Ribeirao Preto School of Medicine; University of Sao Paulo (USP); Ribeirao Preto Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); University of Sao Paulo (USP); Ribeirao Preto Brazil
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28
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Perricone AJ, Vander Heide RS. Novel therapeutic strategies for ischemic heart disease. Pharmacol Res 2014; 89:36-45. [PMID: 25193582 DOI: 10.1016/j.phrs.2014.08.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 08/21/2014] [Accepted: 08/22/2014] [Indexed: 12/24/2022]
Abstract
Despite significant advances in the physician's ability to initiate myocardial reperfusion and salvage heart tissue, ischemic heart disease remains one of the leading causes of death in the United States. Consequently, alternative therapeutic strategies have been intensively investigated, especially methods of enhancing the heart's resistance to ischemic cell death - so called "cardioprotective" interventions. However, although a great deal has been learned regarding the methods and mechanisms of cardioprotective interventions, an efficacious therapy has yet to be successfully implemented in the clinical arena. This review discusses the current understanding of cardioprotection in the context of ischemic heart disease pathophysiology, highlighting those elements of ischemic heart disease pathophysiology that have received less attention as potential targets of cardioprotective intervention.
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Affiliation(s)
- Adam J Perricone
- Louisiana State University Health Sciences Center, New Orleans, LA 70112, United States
| | - Richard S Vander Heide
- Louisiana State University Health Sciences Center, New Orleans, LA 70112, United States.
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Parker AL, Kavallaris M, McCarroll JA. Microtubules and their role in cellular stress in cancer. Front Oncol 2014; 4:153. [PMID: 24995158 PMCID: PMC4061531 DOI: 10.3389/fonc.2014.00153] [Citation(s) in RCA: 264] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 06/03/2014] [Indexed: 01/08/2023] Open
Abstract
Microtubules are highly dynamic structures, which consist of α- and β-tubulin heterodimers, and are involved in cell movement, intracellular trafficking, and mitosis. In the context of cancer, the tubulin family of proteins is recognized as the target of the tubulin-binding chemotherapeutics, which suppress the dynamics of the mitotic spindle to cause mitotic arrest and cell death. Importantly, changes in microtubule stability and the expression of different tubulin isotypes as well as altered post-translational modifications have been reported for a range of cancers. These changes have been correlated with poor prognosis and chemotherapy resistance in solid and hematological cancers. However, the mechanisms underlying these observations have remained poorly understood. Emerging evidence suggests that tubulins and microtubule-associated proteins may play a role in a range of cellular stress responses, thus conferring survival advantage to cancer cells. This review will focus on the importance of the microtubule-protein network in regulating critical cellular processes in response to stress. Understanding the role of microtubules in this context may offer novel therapeutic approaches for the treatment of cancer.
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Affiliation(s)
- Amelia L Parker
- Tumour Biology and Targeting Program, Children's Cancer Institute Australia, Lowy Cancer Research Centre, University of New South Wales , Sydney, NSW , Australia
| | - Maria Kavallaris
- Tumour Biology and Targeting Program, Children's Cancer Institute Australia, Lowy Cancer Research Centre, University of New South Wales , Sydney, NSW , Australia ; Australian Centre for NanoMedicine, University of New South Wales , Sydney, NSW , Australia
| | - Joshua A McCarroll
- Tumour Biology and Targeting Program, Children's Cancer Institute Australia, Lowy Cancer Research Centre, University of New South Wales , Sydney, NSW , Australia ; Australian Centre for NanoMedicine, University of New South Wales , Sydney, NSW , Australia
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Qin Y, Song W, Xiao S, Yin G, Zhu Y, Yan Y, Hu Y. Stress-related genes distinctly expressed in unfertilized wheat ovaries under both normal and water deficit conditions whereas differed in fertilized ovaries. J Proteomics 2014; 102:11-27. [PMID: 24607492 DOI: 10.1016/j.jprot.2014.02.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 02/16/2014] [Accepted: 02/21/2014] [Indexed: 12/17/2022]
Abstract
UNLABELLED In this study, a proteomic approach was utilized to identify differentially accumulated proteins in developing wheat ovaries before and after fertilization and in response to water deficit. Proteins were extracted, quantified, and resolved by 2-DE at pH4-7. Statistical analysis of spot intensity was performed by using principal component analysis and samples were clustered by using Euclidean distance. In total, 136 differentially accumulated protein spots representing 88 unique proteins were successfully identified by MALDI-TOF/TOF MS. Under normal conditions, stress-related proteins were abundant in unfertilized ovaries while proteins involved in the metabolism of energy and matter were enriched in fertilized ovaries just 48h after fertilization. Similar trends were observed in unfertilized and fertilized wheat ovaries under water deficit conditions, except for increased accumulation of stress-related proteins in fertilized ovaries. Some proteins required for normal development were not present in ovaries subjected to water deficit. Our comprehensive results provide new insights into the biochemical mechanisms involved in ovary development before and after fertilization and in tolerance to water deficit. BIOLOGICAL SIGNIFICANCE Fertilization initiates the most dramatic changes that occur in the life cycle of higher plants; research into differences in gene expression before and after ovary pollination can make a substantial contribution to understanding the physiological and biochemical processes associated with fertilization. To date, a small number of studies have examined changes in transcriptional activity of the developing plant embryo sac before and after fertilization. However, comparative proteomic analysis of wheat ovary development before and after fertilization, and in response to water deficit, has not yet been reported. Our comprehensive results provide new insights into the biochemical mechanisms involved in ovary development before and after fertilization and in tolerance to water deficit.
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Affiliation(s)
- Yajuan Qin
- College of Life Sciences, Capital Normal University, Beijing 100048, China.
| | - Wanlu Song
- College of Life Sciences, Capital Normal University, Beijing 100048, China.
| | - Shuyang Xiao
- College of Life Sciences, Capital Normal University, Beijing 100048, China.
| | - Guangjun Yin
- College of Life Sciences, Capital Normal University, Beijing 100048, China.
| | - Yan Zhu
- College of Life Sciences, Capital Normal University, Beijing 100048, China.
| | - Yueming Yan
- College of Life Sciences, Capital Normal University, Beijing 100048, China.
| | - Yingkao Hu
- College of Life Sciences, Capital Normal University, Beijing 100048, China.
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Regulatory role of the 90-kDa-heat-shock protein (Hsp90) and associated factors on gene expression. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1839:71-87. [DOI: 10.1016/j.bbagrm.2013.12.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Revised: 12/23/2013] [Accepted: 12/26/2013] [Indexed: 12/31/2022]
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Hsp90-binding immunophilins as a potential new platform for drug treatment. Future Med Chem 2013; 5:591-607. [PMID: 23573975 DOI: 10.4155/fmc.13.7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Immunophilins are proteins that contain a PPIase domain as a family signature. Low-molecular-weight immunophilins were first described associated to immunosuppressive action and protein folding. Recent studies of other members of the family have led to the identification of their participation in basic processes such as protein-protein interactions, signal transduction cascades, cell differentiation, cell cycle progression, metabolic activity, apoptosis mechanisms, microorganisms infection, cancer, neurotrophism and neuroprotection, among several other physiological and pathophysiological processes. Due to all these emerging features, the development of specific ligands for immunophilins appears to have promising perspectives, in particular in the fields of cancer biology and neuroregeneration fields. We review the emerging role of immunophilins in protein transport, transcription regulation, malignancies development and neurotrophic action, in addition to a number of biological properties that transform these proteins in potential targets for novel therapeutic strategies.
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Carberry S, Zweyer M, Swandulla D, Ohlendieck K. Comparative proteomic analysis of the contractile-protein-depleted fraction from normal versus dystrophic skeletal muscle. Anal Biochem 2013; 446:108-15. [PMID: 23954569 DOI: 10.1016/j.ab.2013.08.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 08/03/2013] [Accepted: 08/06/2013] [Indexed: 01/16/2023]
Abstract
In basic and applied myology, gel-based proteomics is routinely used for studying global changes in the protein constellation of contractile fibers during myogenesis, physiological adaptations, neuromuscular degeneration, and the natural aging process. Since the main proteins of the actomyosin apparatus and its auxiliary sarcomeric components often negate weak signals from minor muscle proteins during proteomic investigations, we have here evaluated whether a simple prefractionation step can be employed to eliminate certain aspects of this analytical obstacle. To remove a large portion of highly abundant contractile proteins from skeletal muscle homogenates without the usage of major manipulative steps, differential centrifugation was used to decisively reduce the sample complexity of crude muscle tissue extracts. The resulting protein fraction was separated by two-dimensional gel electrophoresis, and 2D-landmark proteins were identified by mass spectrometry. To evaluate the suitability of the contractile-protein-depleted fraction for comparative proteomics, normal versus dystrophic muscle preparations were examined. The mass spectrometric analysis of differentially expressed proteins, as determined by fluorescence difference in-gel electrophoresis, identified 10 protein species in dystrophic mdx hindlimb muscles. Interesting new biomarker candidates included Hsp70, transferrin, and ferritin, whereby their altered concentration levels in dystrophin-deficient muscle were confirmed by immunoblotting.
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Affiliation(s)
- Steven Carberry
- Department of Biology, National University of Ireland, Maynooth, Kildare, Ireland
| | - Margit Zweyer
- Department of Physiology II, University of Bonn, D-53115 Bonn, Germany
| | - Dieter Swandulla
- Department of Physiology II, University of Bonn, D-53115 Bonn, Germany
| | - Kay Ohlendieck
- Department of Biology, National University of Ireland, Maynooth, Kildare, Ireland.
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Makhnevych T, Houry WA. The control of spindle length by Hsp70 and Hsp110 molecular chaperones. FEBS Lett 2013; 587:1067-72. [DOI: 10.1016/j.febslet.2013.02.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 02/06/2013] [Accepted: 02/07/2013] [Indexed: 12/20/2022]
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Norris V, Amar P, Legent G, Ripoll C, Thellier M, Ovádi J. Sensor potency of the moonlighting enzyme-decorated cytoskeleton: the cytoskeleton as a metabolic sensor. BMC BIOCHEMISTRY 2013; 14:3. [PMID: 23398642 PMCID: PMC3577492 DOI: 10.1186/1471-2091-14-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 01/22/2013] [Indexed: 11/10/2022]
Abstract
Background There is extensive evidence for the interaction of metabolic enzymes with the eukaryotic cytoskeleton. The significance of these interactions is far from clear. Presentation of the hypothesis In the cytoskeletal integrative sensor hypothesis presented here, the cytoskeleton senses and integrates the general metabolic activity of the cell. This activity depends on the binding to the cytoskeleton of enzymes and, depending on the nature of the enzyme, this binding may occur if the enzyme is either active or inactive but not both. This enzyme-binding is further proposed to stabilize microtubules and microfilaments and to alter rates of GTP and ATP hydrolysis and their levels. Testing the hypothesis Evidence consistent with the cytoskeletal integrative sensor hypothesis is presented in the case of glycolysis. Several testable predictions are made. There should be a relationship between post-translational modifications of tubulin and of actin and their interaction with metabolic enzymes. Different conditions of cytoskeletal dynamics and enzyme-cytoskeleton binding should reveal significant differences in local and perhaps global levels and ratios of ATP and GTP. The different functions of moonlighting enzymes should depend on cytoskeletal binding. Implications of the hypothesis The physical and chemical effects arising from metabolic sensing by the cytoskeleton would have major consequences on cell shape, dynamics and cell cycle progression. The hypothesis provides a framework that helps the significance of the enzyme-decorated cytoskeleton be determined.
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Affiliation(s)
- Vic Norris
- EA 3829, Faculté des Sciences de l'Université de Rouen, 76821, Mont Saint Aignan Cedex, France.
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Iacobas S, Neal-Perry G, Iacobas DA. Analyzing the Cytoskeletal Transcriptome: Sex Differences in Rat Hypothalamus. THE CYTOSKELETON 2013. [DOI: 10.1007/978-1-62703-266-7_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Gene-expression signatures differ between different clinical forms of familial hemophagocytic lymphohistiocytosis. Blood 2012; 121:e14-24. [PMID: 23264592 DOI: 10.1182/blood-2012-05-425769] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We performed gene-expression profiling of PBMCs obtained from patients with familial hemophagocytic lymphohistiocytosis (FHL) to screen for biologic correlates with the genetic and/or clinical forms of this disease. Unsupervised hierarchical clustering of 167 differentially expressed probe sets, representing 143 genes, identified 3 groups of patients corresponding to the genetic forms and clinical presentations of the disease. Two clusters of up- and down-regulated genes separated patients with perforin-deficient FHL from those with unidentified genetic cause(s) of the disease. The clusterscomprised genes involved in defense/immune responses, apoptosis, zinc homeostasis, and systemic inflammation. Unsupervised hierarchical clustering partitioned patients with unknown genetic cause(s) of FHL into 2 well-distinguished subgroups. Patterns of up- and down-regulated genes separated patients with “late-onset” and “relapsing” forms of FHL from patients with an “early onset and rapidly evolving” form of the disease. A cluster was identified in patients with “late onset and relapsing” form of FHL related to B- and T-cell differentiation/survival, T-cell activation, and vesicular transport. The resulting data suggest that unique gene-expression signatures can distinguish between genetic and clinical subtypes of FHL. These differentially expressed genes may represent biomarkers that can be used as predictors of disease progression.
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Hori K, Nagai T, Izumi Y, Kimura M, Hasuike Y, Nakayama Y, Nanami M, Tokuyama M, Otaki Y, Kuragano T, Kohda Y, Obinata M, Kawahara K, Tanoue A, Tomita K, Nakanishi T, Nonoguchi H. Vasopressin V1a receptor is required for nucleocytoplasmic transport of mineralocorticoid receptor. Am J Physiol Renal Physiol 2012; 303:F1080-8. [PMID: 22811487 DOI: 10.1152/ajprenal.00052.2012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We previously reported that a deficiency in the vasopressin V1a receptor (V1aR) results in type 4 renal tubular acidosis, which suggests that vasopressin exerts direct effects on the physiological actions of aldosterone. We investigated the role of vasopressin for nucleocytoplasmic transport of mineralocorticoid receptor (MR) in the intercalated cells. Vasopressin V1aR-deficient (V1aR(-/-)) mice showed largely decreased expression of MR and 11β-hydroxysteroid dehydrogenase type 2 (11βHSD2) in the medulla of the kidney, which was partially ameliorated by fludrocortisone treatment. The incubation of IN-IC cells, an intercalated cell line established from temperature-sensitive SV40 large T antigen-expressing rats, with aldosterone or vasopressin increased the nuclear-to-cytoplasmic ratio of the MR from 11.2 to 47.2% and from 18.7 to 61.2%, respectively, in 30 min without any changes in MR expression from the whole cell extract. The immunohistochemistry analysis of the IN-IC cells revealed the nuclear accumulation of MRs after a 30-min incubation with aldosterone or vasopressin. These effects were accompanied by an increase in regulator of chromosome condensation-1 (RCC-1) due to aldosterone and a decrease in Ran GTPase-activating protein 1 (Ran Gap1) due to vasopressin. RNA interference against V1aR abolished the nuclear accumulation of MR induced by aldosterone or vasopressin. Vasopressin increased PKCα and -β(1) expression, and aldosterone increased PKCδ and -ζ expression, but these effects were abolished with a V1aR knockdown. These results suggest that vasopressin directly regulates the nucleocytoplasmic transport of MRs via the V1aR in the intercalated cells of the collecting ducts.
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Affiliation(s)
- Kahori Hori
- Dept. of Internal Medicine, Kitasao Univ. Kitasato Institute Medical Center Hospital, 6-100 Arai, Kitamoto, Saitama 364-8501, Japan
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Galigniana NM, Ballmer LT, Toneatto J, Erlejman AG, Lagadari M, Galigniana MD. Regulation of the glucocorticoid response to stress-related disorders by the Hsp90-binding immunophilin FKBP51. J Neurochem 2012; 122:4-18. [DOI: 10.1111/j.1471-4159.2012.07775.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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