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  • 1
    Online Resource
    Online Resource
    Dordrecht :Springer Netherlands,
    Keywords: Heat shock proteins. ; Electronic books.
    Description / Table of Contents: This book on the role of heat shock proteins (hsp) in infectious diseases probes the contrasting effects of mammalian and non-mammalian hsp on the immune response. And it examines receptors for pro- and eukaryotic hsp and their immune and auto-immune response.
    Type of Medium: Online Resource
    Pages: 1 online resource (313 pages)
    Edition: 1st ed.
    ISBN: 9789048129768
    Series Statement: Heat Shock Proteins Series ; v.4
    DDC: 572.6
    Language: English
    Note: Intro -- Preface -- References -- Contributors -- 1 Role of HSF1 in Infectious Disease -- 1.1 Introduction -- 1.2 The Basic Biology of HSF -- 1.2.1 Overview of HSF Structure and Function -- 1.2.2 Activation of HSF Trimerization and HSE Binding Capacity -- 1.2.3 HSF Transactivating Activity -- 1.2.4 Regulation of HSF by Covalent Modification and Heterologous Protein Binding -- 1.2.4.1 HSF Phosphorylation -- 1.2.4.2 Other Covalent Modifications of HSF -- 1.2.4.3 Heterologous Protein Interactions -- 1.3 Activation of HSF1 by Factors Associated with Infections -- 1.3.1 Activation of HSF-1 at Febrile-Range Temperatures -- 1.3.2 Activation of Heat Shock Signaling by Products of Infection -- 1.4 Alterations in Heat Shock Response During Infections -- 1.5 Consequences of HSF1 Activation During Infection -- 1.5.1 Other Biological Effects of HSF1 Activation -- 1.5.2 Heat Shock, Cellular Injury and Survival -- 1.6 Conclusion -- References -- 2 Propagating Prions: An Essential Role for Molecular Chaperones -- 2.1 Introduction What Is a Prion? -- 2.2 Yeast Prions Proving the Prion Hypothesis -- 2.3 Role of Molecular Chaperones in Yeast Prion Propagation -- 2.3.1 Hsp104 -- 2.3.2 Hsp70s -- 2.4 Role of Hsp70 Co-chaperones in Yeast Prion Propagation Direct and Indirect Effects -- 2.5 Relevance of Yeast Prions to Mammalian Prion Diseases -- 2.6 Conclusions -- References -- 3 Role of Heat Shock Proteins in Viral Infection -- 3.1 Introduction -- 3.2 Modulation of the Heat Shock Response During Viral Infection -- 3.3 How Do Viruses Activate the Heat Shock Response? -- 3.4 Which Is the Functional Significance of HSP Induction During Viral Infection? -- 3.4.1 Virus Entry -- 3.4.2 Uncoating -- 3.4.3 Viral Gene Expression -- 3.4.4 Genome Replication -- 3.4.5 Assembly of Viral Components and Virion Morphogenesis. , 3.5 Effect of Hyperthermia and HSR Modulators on Virus Replication -- 3.5.1 Hsp90 Inhibitors and Virus Replication -- 3.5.2 Hyperthermia in Viral Infection -- 3.5.3 Induction of Heat Shock Proteins by Antiviral Agents -- 3.6 Concluding Remarks -- References -- 4 Chaperones in the Morphogenesis of Viruses -- 4.1 Introduction -- 4.2 Hsp60: Assisting Folding in Seclusion -- 4.2.1 The Hsp60 Chaperone Chamber -- 4.2.2 GroEL Interactions with Coats and Tails -- 4.2.3 TriC: A Bag of Tricks for Virus Assembly? -- 4.3 Hsp70: Assisting Folding by Local Interactions -- 4.3.1 The Hsp70 Chaperone Team -- 4.3.2 Hsp70 in Virion Assembly -- 4.3.3 Hsp70 in Disassembly -- 4.3.4 Hsp70 as Part of the Coat -- 4.4 Hsp90: Assisting Folding by Holding -- 4.4.1 The Hsp90 Chaperone Platform -- 4.4.2 Hsp90s in Viral Development -- 4.5 Concluding Remarks -- References -- 5 Role of Host Molecular Chaperones in Responses to Bacterial Infection and Endotoxin Exposure -- 5.1 Introduction -- 5.2 Heat Shock Proteins and Infection -- 5.3 Fever, Sepsis and the Anti-Inflammatory Influence of the HSR -- 5.4 Role of HSF1 and Heat Shock Proteins in Regulating NFB -- 5.5 Overriding the Heat Shock Response by Pro-inflammatory Signaling -- 5.6 Conclusions -- References -- 6 Mycobacterial Heat Shock Protein 60s in the Induction and Regulation of Infectious Disease -- 6.1 Introduction -- 6.2 Mycobacterial Hsp60s -- 6.2.1 Mycobacterial Diseases -- 6.2.2 Pathology of Tuberculosis -- 6.3 Immune Responses Against Mycobacteria and Mycobacterial Cpn60s -- 6.3.1 Mycobacteria, as well as Mycobacterial Cpn60s -- 6.3.2 Antibody Responses to Cpn60s -- 6.3.3 Cellular Responses to Cpn60s and Cytokine Release -- 6.4 The Role of Hsp60 in the Pathology of Tuberculosis -- 6.5 Protective and Misdirected Immune Responses Against Mycobacterial Cpn60 Proteins. , 6.5.1 Cpn60-Based Vaccines Against Mycobacterial Diseases -- 6.5.2 Regulation of Autoimmunity by Cpn60 Proteins -- 6.5.3 Hypothesis: Granuloma Activation-Suppression Cycle -- References -- 7 Heat Shock Proteins in Protozoan Parasites Leishmania spp. -- 7.1 The Organism -- 7.1.1 Gene Regulation in Leishmania spp. : A Farewell to Promoters -- 7.1.2 Leishmania Life Cycle and Pathogeny -- 7.1.3 Axenic Differentiation In Vitro -- 7.2 Heat Shock Proteins in Leishmania -- 7.2.1 The Heat Shock Protein Complement of Leishmania -- 7.2.2 Heat Shock Proteins and the Heat Shock Response -- 7.2.3 Stage-Specific Expression of Heat Shock Proteins in Leishmania -- 7.2.3.1 Pre-genome Era -- 7.2.3.2 Post-genome Era -- 7.3 Specific Roles in the Parasitic Life Cycle -- 7.3.1 Hsp100 -- 7.3.2 Hsp90 -- 7.3.3 Antogonistic roles for Hsp90 and Hsp100 -- 7.3.4 Heat Shock Proteins as Antigens in Leishmania Infections -- 7.3.5 Protection Against Anti-microbial Agents -- 7.4 Future Directions -- References -- 8 Toll-Like Receptors and Infectious Diseases: Role of Heat Shock Proteins -- 8.1 Introduction -- 8.2 Toll-Like Receptors Linked to Infectious Diseases -- 8.2.1 TLR1 -- 8.2.2 TLR2 -- 8.2.3 TLR3 -- 8.2.4 TLR4 -- 8.2.5 TLR5 -- 8.2.6 TLR6 -- 8.2.7 TLR7 and TLR8 -- 8.2.8 TLR9 -- 8.2.9 TLR11 -- 8.3 Conclusion -- References -- 9 Lipid Rafts, Lipopolysaccharide and Stress Proteins in Infectious Diseases -- 9.1 Introduction -- 9.2 Heat Shock Proteins as Intracellular Molecular Chaperones -- 9.3 Heat Shock Proteins as Extracellular Molecular Chaperones -- 9.4 Cell Surface Expression of Heat Shock Proteins -- 9.5 Lipid Rafts -- 9.6 Association of Heat Shock Proteins with Lipid Rafts -- 9.7 Role of Heat Shock Proteins in Acquired Immune Responses -- 9.8 Re-Presentation and Cross-Priming -- 9.9 Role of Heat Shock Protein in Innate Immune Responses. , 9.10 Lipopolysaccharide Recognition -- 9.11 Toll-Like Receptor Ligands? -- 9.12 Modulators of the Innate Immune Response? -- 9.13 Novel Therapeutic Interventions? -- 9.14 Concluding Remarks -- References -- 10 Heat Shock Proteins Are Mediators of Bacterial-HostInteractions -- 10.1 The Diversity of Life on Our Earth -- 10.1.1 Bacterial Diversity -- 10.1.1.1 Bacterial Diversity in Homo Sapiens -- 10.2 BacteriaHost Interactions -- 10.3 Heat Shock Proteins -- 10.3.1 Heat Shock Proteins as Moonlighting Proteins -- 10.4 Heat Shock Proteins and the Stress of Infection -- 10.5 Host Heat Shock Proteins Can Function as Receptors for Bacteria -- 10.6 Host Heat Shock Proteins Are Found in the Circulation: A New Homeostatic Network? -- 10.6.1 Signalling Actions of Host Heat Shock Proteins -- 10.7 Bacterial Heat Shock Proteins Are Virulence Factors? -- 10.7.1 Bacterial Molecular Chaperones Act as Bacterial Adhesins -- 10.7.2 Bacterial Molecular Chaperones as Directly Acting Virulence Factors -- 10.8 Bacterial Molecular Chaperones as Therapeutic Targets -- 10.9 Conclusions -- References -- 11 Membrane-Expressed and Extracellular Stress Proteins in Infectious Disease -- 11.1 Heat Shock Proteins (HSPs) -- 11.2 Membrane-Expressed and Extracellular Heat Shock Proteins Elicit Immune Responses -- 11.3 Microbial Infections -- 11.3.1 Escherichia coli ( E. coli ) -- 11.3.2 Salmonella typhimurium -- 11.3.3 Helicobacter pylori -- 11.3.4 Chlamydia pneumonia and Chlamydia trachomatis -- 11.3.5 Human Immunodeficiency Virus (HIV) -- 11.3.6 Epstein-Barr Virus (EBV) -- 11.3.7 Measles -- References -- 12 Circulating Stress Proteins in Infectious Disease -- 12.1 Introduction -- 12.2 Increase of Circulating Heat Shock Proteins During Infection -- 12.3 Origin of Circulating Heat Shock Proteins -- 12.4 Role of Circulating Heat Shock Proteins in Infection. , 12.5 Measurement of Circulating Heat Shock Proteins -- 12.6 Clinical Utility of Circulating Heat Shock Proteins Determinations -- 12.7 Conclusion -- References -- 13 Heat Shock Proteins, Genital Tract Infections and Reproductive Outcome -- 13.1 Infection-Related Heat Shock Protein Expression in the Female Genital Tract -- 13.1.1 Chlamydia trachomatis Infection -- 13.1.2 Vaginal Infections -- 13.1.3 Congenital Cytomegalovirus (CMV) Infection -- 13.2 Heat Shock Protein Expression During Pregnancy -- 13.2.1 Preimplantation Heat Shock Protein Expression -- 13.2.2 Influence of Antibodies to Heat Shock Proteins on Pre-implantation Embryo Development -- 13.2.3 Antibodies to Heat Shock Proteins and In Vitro Fertilisation -- 13.2.4 Heat Shock Proteins in Amniotic Fluid -- 13.2.5 Heat Shock Proteins as Biomarkers of Adverse Pregnancy Events -- 13.3 Polymorphisms in Heat Shock Protein Genes Influencing Pregnancy Outcome -- 13.4 Conclusions -- References -- 14 Heat Shock Proteins and Oral Diseases: Special Focuson Periodontitis -- 14.1 Gingivitis and Periodontitis -- 14.1.1 Etiology and Pathology -- 14.1.1.1 Gingivitis -- 14.1.1.2 Periodontitis -- 14.2 Heat Shock Proteins -- 14.2.1 Heat Shock Proteins and Atherosclerosis -- 14.2.2 Heat-Shock Proteins and Temporomandibular Joint Disorders -- 14.2.3 Heat Shock Proteins and Oral Mucosal Lesions -- 14.2.3.1 Oral Lichen -- References -- 15 Temperature Matters: Cellular Targets of Hyperthermia in Cancer Biology and Immunology -- 15.1 Introduction -- 15.2 Hyperthermia as a Radiosensitizer -- 15.3 Heat Shock Temperatures (4245C): Effects on Cell Structure and Morphology and the Plasma Membrane -- 15.3.1 Changes in Membrane Fluidity and Surface Morphology -- 15.3.2 Changes in Cytoskeletal Properties -- 15.3.3 Changes in Membrane Potential and Permeability. , 15.3.4 Changes in Plasma Membrane Association of Heat Shock and Other Proteins.
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  • 2
    Online Resource
    Online Resource
    Cham :Springer International Publishing AG,
    Keywords: Biochemistry. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (341 pages)
    Edition: 1st ed.
    ISBN: 9783319463407
    Series Statement: Heat Shock Proteins Series ; v.10
    DDC: 572.62
    Language: English
    Note: Intro -- Preface -- Contents -- Part I: Small Plant Heat Shock Proteins (HSP) -- Chapter 1: Small Heat Shock Proteins: Roles in Development, Desiccation Tolerance and Seed Longevity -- 1.1 Introduction -- 1.2 Small HSPs and Their Role in Development -- 1.2.1 Role of Small HSPs in Pollen Development -- 1.2.2 Role of Small HSPs in Seed Development -- 1.2.3 Role of Small HSPs During Seed Germination -- 1.2.4 Role of Small HSPs in Storage Organs -- 1.3 Molecular Regulation of Small HSP Accumulation During Development -- 1.4 Concerted Expression of Small HSPs with Other Seed Storage Proteins -- 1.5 Small HSPs: Key Players in Acquisition of Seed Desiccation Tolerance -- 1.6 Small HSPs Maintain Seed Viability During Aging -- 1.7 Small HSPs Impart Vigor and Better Germinability to Seeds Under Stress -- 1.8 Conclusion -- References -- Chapter 2: Plant Small Heat Shock Proteins and Its Interactions with Biotic Stress -- 2.1 Introduction -- 2.2 Plant HSP Family -- 2.3 General Role of HSP20 in Plant Defense Mechanism Against Biotic Stresses -- 2.4 Plant HSP20 in Immune Response During Bacteria Infection -- 2.5 HSP20 Activity in Plant Response Against Fungi -- 2.6 Plant HSP20 Associated to Nematodes Attack -- 2.7 HSP20 May Protect Plant Cells During Viral Infection -- 2.8 Conclusion -- References -- Chapter 3: Small Heat Shock Proteins, a Key Player in Grass Plant Thermotolerance -- 3.1 Introduction -- 3.2 Definition of sHSPS -- 3.3 Structure, Function and Regulation of SHSP -- 3.4 The Grass Family and the Mechanisms for Heat Tolerance -- 3.5 Identification and Characterization of SHSPS Associated with Heat Tolerance in Grasses -- 3.5.1 SHSPS Identified in Annual Species Cultivated as Grain Crops -- 3.6 SHSPS Identified in Perennial Species Cultivated as Forage or Turf Grasses -- 3.7 Conclusion -- References. , Chapter 4: Induction of Heat Shock Proteins During the Bud Dormancy Stage in Woody Fruit Plants -- 4.1 Introduction -- 4.2 Research Findings in Bud Dormancy of Woody Fruit Plants -- 4.3 Heat-Shock Proteins Detected During Bud Dormancy Stage -- 4.4 Role of Heat-Shock Proteins During the Bud Dormancy Stage -- 4.5 Conclusion -- References -- Chapter 5: Heat Shock Proteins in Wild Barley at "Evolution Canyon", Mount Carmel, Israel -- 5.1 Introduction -- 5.2 "Evolution Canyon" Model -- 5.3 Wild Barley, Hordeum spontaneum -- 5.4 Heat Shock Proteins (HSP) in Grasses -- 5.4.1 Small Heat Shock Proteins in Barley -- 5.5 HSP and Stress and Evolution -- 5.6 Barley HSP17 at Evolution Canyon -- 5.7 Future Studies on HSP at the "Evolution Canyon" Model -- 5.8 Conclusion -- References -- Chapter 6: Insights into the Mechanism of Heat Shock Mitigation Through Protein Repair, Recycling and Degradation -- 6.1 Introduction -- 6.2 Heat Shock Proteins as Molecular Chaperones -- 6.3 Heat Shock Factors -- 6.4 Regulation of Heat Shock Response -- 6.4.1 HSBP as HSF Regulator -- 6.4.2 BAG as Co-chaperones -- 6.5 Unfolded Protein Response and Autophagy -- 6.5.1 ATG6/Beclin1 Proteins -- 6.6 Recent Research Advances on HSR -- 6.7 Conclusion -- References -- Part II: Large Plant Heat Shock Proteins (HSP) -- Chapter 7: Plant Stress Response: Hsp70 in the Spotlight -- 7.1 Introduction -- 7.2 Hsp70 Function and Crosstalk in Plants -- 7.2.1 Hsp70 Chaperone Function and Regulation -- 7.2.2 Hsp70 in Growth and Development -- 7.2.3 Hsp70 as Translocator -- 7.2.4 Regulation of Induction of HSP70 - Heat Shock Response (HSR) -- 7.3 Multifaceted Role of HSP70 in Stress Tolerance of Plants -- 7.3.1 Biotic Stress Tolerance -- 7.3.2 Abiotic Stress Tolerance -- 7.3.3 Heat Stress -- 7.3.4 Drought Stress -- 7.3.5 Hsp70 in Abscisic Acid (ABA) Dependent Stress Signaling -- 7.3.6 Salinity Stress. , 7.3.7 Cold Stress -- 7.3.8 Flooding Stress -- 7.3.9 Inadequate or Excessive Light -- 7.3.10 Enhanced Concentrations of Heavy Metals -- 7.4 Combinatorial Stress and Hsp70 -- 7.5 Plant Stress Proteomics and Hsp70 -- 7.6 hsp70 Transgenics: The Road Ahead -- 7.7 Conclusion -- References -- Chapter 8: The Role of Plant 90-kDa Heat Shock Proteins in Plant Immunity -- 8.1 Introduction -- 8.2 Expression of HSP90 in Plants -- 8.3 HSP90 and the Plant Defense Response -- 8.4 HSP90 and Non-host Resistance -- 8.5 HSP90 and Host Resistance -- 8.6 Specific Requirement of HSP90 Isoforms by R Proteins -- 8.7 Conclusion -- References -- Chapter 9: Chloroplasts Heat Shock Protein 70B as Marker of Oxidative Stress -- 9.1 Introduction -- 9.2 Chloroplast HSP -- 9.3 Heat Shock Protein 70B (HSP70B) - Biomarker for Cell Resistance or Cell Susceptibility to Environmentally Induced Stress? -- 9.4 Conclusion -- 9.5 Genotype Resistance to Oxidative Stress and HSP70B Chaperone in Chlamydomonas Reinhardtii -- 9.6 How Organisms Cope with Oxidative Stress? -- 9.7 How Men Can Cope with Oxidative Stress in Plants? -- 9.8 What Approach Should Be Used to Obtain Fast and Reliable Information? -- 9.9 Conclusion -- References -- Chapter 10: The Involvement of HSP70 and HSP90 in Tomato Yellow Leaf Curl Virus Infection in Tomato Plants and Insect Vectors -- 10.1 Introduction -- 10.2 TYLCV Infection Leads to Reorganization of PQC Elements Including HSP70 and HSP90 in Host Cells -- 10.2.1 TYLCV-Induced Aggregation in Plant and Insect Host Organisms -- 10.2.2 Interaction Between Cellular HSPs and TYLCV Proteins -- 10.2.2.1 Co-localization of Host HSP70 and TYLCV CP -- 10.2.2.2 Complexes Between HSPs and TYLCV Proteins -- 10.2.2.3 TYLCV Infection Causes the Re-localization of PQC Elements in Host Cells. , 10.3 Downregulation of HSP70 and HSP90 Expression/Activity Differently Affect TYLCV Accumulation in Tomatoes -- 10.4 TYLCV Infection Interferes with Plant Stress Response Through Modifications in the Availability of HSPs -- 10.4.1 Combined Heat and Viral Stresses Induce the Efficient Aggregation of the Cellular Chaperones HSP70 and HSP90 -- 10.4.2 TYLCV Downregulates Heat Stress Response in Infected Plants -- 10.5 Conclusion -- References -- Part III: Heat Shock Proteins and Plant Therapeutics -- Chapter 11: Heat Shock Proteins and Phytochemicals: Role in Human Health and Disease -- 11.1 Introduction -- 11.2 Oxidative Stress - Involved Ischemia/Reperfusion Injury -- 11.2.1 Antioxidant Effects of Phytochemicals: Role of Heat Shock Proteins -- 11.2.1.1 Caffeic Acid Phenethyl Ester (CAPE) -- 11.2.1.2 1-[2-Cyano-3,12-Dioxooleana-1,9(11)-Dien-28-Oyl]Imidazole (CDDO-Im) -- 11.3 Obesity and Related Disorders -- 11.3.1 Heat Shock Proteins in Obesity and Related Disorders -- 11.3.2 Role of HSPs in Phytochemical-Induced Anti-obesity Effects -- 11.3.2.1 Curcumin -- 11.3.2.2 Resveratrol -- 11.3.2.3 Naringin -- 11.3.2.4 Epigallocatechin-3-Gallate -- 11.4 Liver Health and Disease -- 11.4.1 Role of HSPs in Liver Repair and Regeneration -- 11.4.2 Role of HSPs in Liver Disease -- 11.4.2.1 HSPs in hepatocellular carcinoma (HCC) -- Dietary Pomegranate Emulsion -- Black Currant Phytoconstituents -- 11.4.2.2 HSPs in alcoholic steatohepatitis (ASH) -- 11.4.2.3 HSPs in fluoride induced hepatotoxicity -- Caffeic Acid -- 11.4.2.4 HSPs in CCl4-induced hepatotoxicity -- Wei Kang Su and Flavonoids -- 11.5 Conclusion -- References -- Chapter 12: The Induction of Drosophila Heat Shock Proteins by Plants That Can Extend Fly Lifespan -- 12.1 Introduction -- 12.2 Aging, Hormesis, and Heat Shock Proteins -- 12.2.1 Rhodiola rosea -- 12.2.2 Cinnamon -- 12.2.3 Rosa damascena. , 12.3 Other Anti-aging Plants and Plant Products -- 12.4 Conclusion -- References -- Chapter 13: Molecular Chaperones and HSPs in Sugarcane and Eucalyptus -- 13.1 Introduction -- 13.1.1 Protein Folding, Structure and Function -- 13.1.2 Molecular Chaperones and Heat Shock Proteins (HSPs) Are Part of the Protein Quality Control (PQC) System -- 13.1.3 Main Proteins Involved with Stress Response -- 13.1.4 Heat Shock Factor (HSF) -- 13.1.5 The HSP70/HSP90 System -- 13.1.6 HSP60/HSP10 -- 13.1.7 HSP100 and sHSP -- 13.2 Stress Response and Chaperones in Plants -- 13.2.1 Stress Response -- 13.2.2 Chaperone Genome Analysis and Gene Expression Pattern in Plants -- 13.2.3 Chaperone Genome Analysis and Gene Expression Pattern in Sugarcane and Eucalyptus -- 13.3 Functional and Structural Advances on Sugarcane Chaperones -- 13.3.1 HSP70 -- 13.3.2 HSP90 -- 13.3.3 HSP100 -- 13.3.4 sHSP -- 13.4 Final Remarks -- References -- Chapter 14: Role of Heat Shock Proteins in Improving Heat Stress Tolerance in Crop Plants -- 14.1 Introduction -- 14.2 Heat Shock Proteins (Hsps) -- 14.3 Small Heat Shock Proteins (sHsps) -- 14.4 Heat Shock Protein 70 (Hsp70) -- 14.5 Heat Shock Protein 90 (Hsp90) -- 14.6 Heat Shock Protein 100 (Hsp100) -- 14.7 Chaperonins -- 14.8 Heat Shock Transcription Factors (Hsfs) -- 14.9 Heat Shock Promoters -- 14.10 Signaling Molecules Involved in the Heat Stress Response -- 14.11 Genomic Approaches for Heat Stress Tolerance -- 14.12 Conclusion -- References -- Chapter 15: NGS-Based Expression Profiling of HSP Genes During Cold and Freeze Stress in Seabuckthorn (Hippophae rhamnoides L.) -- 15.1 Introduction -- 15.2 Heat Shock Proteins: Role Under Cold/Freeze Stress in Plants -- 15.2.1 Seabuckthorn: Cold and Freeze Stress Adapted Plant -- 15.3 Transcriptome Analysis: Abundance of Heat Shock Protein Genes in Seabuckthorn Transcriptome. , 15.4 Differential Expression of HSP Genes Under Cold and Freeze Stress in Seabuckthorn.
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  • 3
    Online Resource
    Online Resource
    New York, NY :Springer,
    Keywords: Heat shock proteins. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (469 pages)
    Edition: 1st ed.
    ISBN: 9780387397177
    Series Statement: Protein Reviews Series ; v.7
    DDC: 612.01575
    Language: English
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  • 4
    ISSN: 1546-170X
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Here, we demonstrate a previously unknown function for the 70-kDa heat-shock protein (HSP70) as a cytokine. HSP70 bound with high affinity to the plasma membrane, elicited a rapid intracellular calcium flux, activated nuclear factor (NF)-κB and upregulated the expression of pro-inflammatory ...
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  • 5
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Heat shock has a profound influence on the metabolism and behavior of eukaryotic cells. We have examined the effects of heat shock on the release from cells of arachidonic acid and its bioactive eicosanoid metabolites, the prostaglandins and leukotrienes. Heat shock (42-45°) increased the rate of arachidonic acid release from human, rat, murine, and hamster cells. Arachidonate accumulation appeared to be due, at least partially, to stimulation of a phospholipase A2 activity by heat shock and was accompanied by the accumulation of lysophosphatidyl-inositol and lysophosphatidylcholine in membranes. Induction of arachidonate release by heat did not appear to be mediated by an increase in cell Ca+ +. Stimulation of arachidonate release by heat shock in hamster fibroblasts was quantitatively similar to the receptor-mediated effects of β thrombin and bradykinin. The effects of heat shock and β thrombin on arachidonate release were inhibited by glucocorticoids. Increased arachidonate release in heat-shocked cells was accompanied by the accelerated accumulation of cyclooxygenase products prostaglandin E2 and prostaglandin F2α and by 5-lipoxygenase metabolite leukotriene B4. Elevated concentrations of arachidonic acid and metabolites may be involved in the cytotoxic effects of hyperthermia, in homeostatic responses to heat shock, and in vascular and inflammatory reactions to stress.
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  • 6
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: We have attempted to determine the appropriate parameter of energy status assoiciated with the survival of CHO fibroblasts under starvation conditions. Survival correlated well with adenylate energy charge (EC) but not so well with the phosphorylation potential or ATP concentration. Starved cells exhibited the capacity to resist (transiently) decreases in both EC and survival. A fall in EC was associated with decreased survival. Using this correlation, we subsequently investigated whether killing after thermal stress occurred by a mechanism analogous to starvation, perhaps due to inhibition of energy yielding pathways. This hypothesis proved to be false; over 99% of cells were killed before a decrease was observed in any of the parameters of energy status. Cells were, however, sensitized to heat under nutritionally deprived conditions, a finding which may be significant for tumor treatment by heat in vivo.
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  • 7
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 130 (1987), S. 369-376 
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Exposure of eukaryotic cells to elevated temperature leads to profound switches in cell metabolism and gene expression which may be involved in cellular homeostatic mechanisms. We have investigated the effect of heat shock (45°C) on the metabolism of the phosphoinositides, a class of phospholipids involved in the function of Ca2+-linked membrane receptors. Heat shock led to stimulation of phosphoinositide turnover in HA1-CHO and Balb C 3T3 cells, resulting in the rapid accumulation of inositol trisphosphate (lP3). Mitogenic and α1 adrenergic stimulation, with serum or phenylephrine, led to similar increases in lP3. Heat shock also caused rapid increase in phosphorylation of polyphosphoinositides (PPl). Prolonged exposure to heat 〉15 min at 45°C led to progressive cellular toxicity which was associated with depletion of PPl. This decline in PPl concentration appeared to result from inhibition of PPl resynthesis. In this respect, heat may resemble some other types of cellular stresses in stimulating membrane phospholipases to deplete classes of membrane phospholipids. The induction of PPl turnover may, therefore, be involved in both plelotropic responses to brief heat shock and toxicity resulting from prolonged thermal stress.
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 151 (1992), S. 56-62 
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: After cells have been exposed to a nonlethal heat shock, they develop an enhanced resistance to subsequent prolonged heat shock. This process, termed thermotolerance, correlates with the expression of a group of proteins called the heat shock proteins. When cells are exposed to heat, protein synthesis is rapidly turned off and takes 5-6 hr to recover. In thermotolerant cells, protein synthesis is not blocked by heat. The heat shock proteins are thought to be responsible for the development of thermotolerance and the protection of the protein synthesis machinery from heat inactivation. To test the hypothesis that the heat shock proteins are involved in the heat shock response, we used two inhibitors to block their transcription and expression during heating and then monitored the effect on the development of thermotolerance and on protein synthesis. Camptothecin inhibits DNA topoisomerase I and blocks transcription of all actively transcribed genes, whereas dichloro-D-ribofuranosylbenzimidazole (DRB) inhibits only those genes transcribed by RNA polymerase II. Both DRB and camptothecin blocked the heat-induced expression of the heat shock proteins, but the absence of these proteins did not block either the development of thermotolerance or the protection of protein synthesis after heating. The data indicate that thermotolerance can develop in the absence of new protein synthesis. © 1992 Wiley-Liss, Inc.
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  • 9
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The glucose regulated proteins (GRPs) are major structural components of the endoplasmic reticulum (ER) and are involved in the import, folding, and processing of ER proteins. Expression of the glucose regulated proteins (GRP78 and GRP94) is greatly increased after cells are exposed to stress agents (including A23187 and tunicamycin) which inhibit ER function. Here, we demonstrate that three novel inhibitors of ER function, thapsigargin (which inhibits the ER Ca2+-ATPase), brefeldin A (an inhibitor of vesicle transport between the ER and Golgi) and AlF-4, (which inhibits trimeric G-proteins), can increase the expression of both GRP78 and 94. The common characteristic shared by activators of GRP expression is that they disrupt some function of the ER. The increased levels of GRPs may be a response to the accumulation of aberrant proteins in the ER or they may be increased in response to structural/functional damage to the ER. The increased accumulation of GRP78 mRNA after exposure of cells to either thapsigargin, brefeldin A, AlF-4, A23187, or tunicamycin can be blocked by pre-incubation in cycloheximide. In contrast, accumulation of GRPs after exposure to hypoxia was independent of cycloheximide. In addition, the protein kinase inhibitor genistein blocked the thapsigargin induced accumulation of GRP78 mRNA, whereas the protein phosphatase inhibitor okadaic acid caused increased accumulation of GRP78 mRNA. The data indicates that there are at least 2 mechanisms for induced expression of GRPs, one of which involves a phosphorylation step and requires new protein synthesis (e.g., thapsigargin, A23187) and one which is independent of both these steps (hypoxia). © 1992 Wiley-Liss, Inc.
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  • 10
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 156 (1993), S. 153-159 
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The heat shock response in mammals consists of a complex array of intracellular reactions initiated by stress, although its regulation is poorly understood. We have investigated the role of transmembrane signal transduction in the response, examining mechanisms involved in the activation of phospholipase C (PLC) by heat shock. In rodent fibroblasts permeabilized with digitonin, heat shock and receptor-mediated PLC activity exhibited a strict GTP analog dependency. This indicates that heat shock-mediated phopholipase activation, in common with receptor mediated stimulation, does not involve direct effects on the phospholipases and suggests the participation of GTP binding (G) proteins in the activation process. When cells were treated with the inhibitor pertussis toxin (PTX), the phospholipases retained their inducibility by heat shock, but became refractory to thrombin treatment, indicating that heat shock may influence PLC activity through a distinct population of G proteins compared to thrombin. The data seem to exclude a role for PTX sensitive G proteins in the production of IP3 after heating and suggest a pathway involving the direct thermal activation of the Gq class of G proteins, which are coupled to the PLCβ1 isoform. © 1993 Wiley-Liss, Inc.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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