Search results for "Hsp"

Apoptotic cells have long been considered as intrinsically tolerogenic or unable to elicit immune responses specific for dead cell-associated antigens. However, multiple stimuli can trigger a functionally peculiar type of apoptotic demise that does not go unnoticed by the adaptive arm of the immune system, which we named "immunogenic cell death" (ICD). ICD is preceded or accompanied by the emission of a series of immunostimulatory damage-associated molecular patterns (DAMPs) in a precise spatiotemporal configuration. Several anticancer agents that have been successfully employed in the clinic for decades, including various chemotherapeutics and radiotherapy, can elicit ICD. Moreover, defect…

HSV-1 herpes simplex virus type IΔψm mitochondrial transmembrane potentialmedicine.medical_treatmentDAMP damage-associated molecular patterndetectionFLT3LG fms-related tyrosine kinase 3 ligandReviewmember 3calreticulinEukaryotic translation initiation factor 2ARFP red fluorescent protein0302 clinical medicineMOMP mitochondrial outer membrane permeabilizationImmunology and AllergyGFP green fluorescent proteinHMGB10303 health scienceseducation.field_of_studyToll-like receptorBAK1 BCL2-antagonist/killer 1H2B histone 2Bendoplasmic reticulum stre3. Good healthBAX BCL2-associated X proteinXBP1 X-box binding protein 1cell deathOncologyPDIA3 protein disulfide isomerase family A030220 oncology & carcinogenesisendoplasmic reticulum stressImmunogenic cell deathHSP heat shock proteinimmunotherapyTLR Toll-like receptorautophagyATF6 activating transcription factor 6ImmunologyICD immunogenic cell deathEIF2A eukaryotic translation initiation factor 2AGuidelinesBiologyBCL2 B-cell CLL/lymphoma 2 proteinER endoplasmic reticulumPI propidium iodideATP release03 medical and health sciencesImmune systemimmunogenicmedicineIFN interferonAntigen-presenting celleducation030304 developmental biologyCALR calreticulinDamage-associated molecular patternImmunotherapyCTL cytotoxic T lymphocyteHMGB1 high mobility group box 1IL interleukinG3BP1 GTPase activating protein (SH3 domain) binding protein 1APC antigen-presenting cellCancer cellImmunologyDiOC6(3) 33′-dihexyloxacarbocyanine iodideDAPI 4′6-diamidino-2-phenylindoleOncoImmunology

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Protective role of heat shock proteins in Parkinson's disease.

2010

Parkinson’s disease (PD) is the second most common neurodegenerative disease after Alzheimer’s disease. Despite a large amount of research, the pathogenetic mechanism of these diseases has not yet been clarified. Abnormal protein folding, oxidative stress, mitochondrial dysfunction, and apoptotic mechanisms have all been reported as causes of neurodegenerative diseases in association with neuroinflammatory mechanisms which, by generating deleterious molecules, could promote the cascade of events leading to neurodegeneration. Heat shock proteins (HSPs) play a central role in preventing protein misfolding and inhibiting apoptotic activity, and represent a class of proteins potentially involve…

Heat shock proteins Parkinson disease neuroprotective roleParkinson's diseasebiologyNeurodegenerationParkinson DiseaseDiseasemedicine.diseasemedicine.disease_causeHsp90Hsp70PathogenesisNeurologyHeat shock proteinImmunologymedicinebiology.proteinAnimalsHumansHSP70 Heat-Shock ProteinsNeurology (clinical)HSP90 Heat-Shock ProteinsNeuroscienceOxidative stressHeat-Shock ProteinsNeuro-degenerative diseases

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Role of heme oxygenase-1 (HSP32) and HSP90 in glioblastoma

2017

Glioblastoma (GBM) is the most common and malignant primary brain tumor in adults. The current treatment regimes for glioblastoma demonstrated a low efficiency and offer a poor prognosis. Advancements in conventional treatment strategies have only yielded modest improvements in overall survival. The heat shockproteins, heme oxygenase-1 (HO-1) and Hsp90, serve these pivotal roles in tumor cells and have been identified as effective targets for developing therapeutics. This topic review summarizes the current preclinical and clinical evidences and rationale to define the potential of HO-1 and Hsp90 in GBM progression and chemoresistance.

Heme oxygenaseMolecular chaperonesHeat shock proteinHsp90GlioblastomaCancer

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Manganese effects on haematopoietic cells and circulating coelomocytes of Asterias rubens (Linnaeus)

2008

Abstract Manganese (Mn) is a naturally abundant metal in marine sediments where it mainly occurs as MnO 2 . During hypoxic conditions it is converted into a bioavailable state, Mn 2+ , and can reach levels that previously have shown effects on immune competent cells of the crustacean, Nephrops norvegicus . Here we investigated if Mn also affects circulating coelomocytes and their renewal in the common sea star, Asterias rubens , when exposed to concentrations of Mn that can be found in nature. When the sea stars were exposed to Mn it accumulated in the coelomic fluid and the number of circulating coelomocytes, in contrast to what was recorded in Nephrops , increased significantly. By using …

HemocytesMitotic indexCell divisionCell SurvivalHealth Toxicology and MutagenesisBlotting WesternCell CountAquatic ScienceBiologyPhagocytosisNephrops norvegicusMitotic IndexmedicineAnimalsHSP70 Heat-Shock ProteinsCell ProliferationManganeseAsteriasAnatomybiology.organism_classificationMolecular biologyCoelomic epitheliumHsp70Haematopoiesismedicine.anatomical_structureAsteriasCoelomWater Pollutants ChemicalAquatic Toxicology

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Sequence-Specific Repression of Cotranslational Translocation of the Hepatitis B Virus Envelope Proteins Coincides with Binding of Heat Shock Protein…

1997

AbstractThe large L envelope protein of the hepatitis B virus has the peculiar capacity to adopt two transmembrane topologies. The N-terminal preS domain of L initially remains in the cytosol while the S domain is cotranslationally inserted into the endoplasmic reticulum membrane. The preS region of about half of the L molecules is posttranslationally translocated to the lumenal space. We now demonstrate that the repression of cotranslational translocation of preS is conferred by a preS1-specific sequence. By analysis of L deletion mutants, the cytosolic anchorage determinant was mapped to amino acid sequence 70 to 94 of L. The intrinsic potential of this determinant to suppress cotranslati…

Hepatitis B virusHSC70 Heat-Shock ProteinsRecombinant Fusion ProteinsPlasma protein bindingBiologyGenes envCytosolViral Envelope ProteinsHeat shock proteinVirologyHumansHSP70 Heat-Shock ProteinsBinding sitePromoter Regions GeneticPeptide sequenceBinding SitesBase SequenceCell-Free SystemEndoplasmic reticulumHSC70 Heat-Shock ProteinsOligonucleotides AntisenseMolecular biologyTransmembrane proteinChaperone (protein)Protein Biosynthesisbiology.proteinMutagenesis Site-DirectedMetallothioneinCarrier ProteinsProtein BindingVirology

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Chaperones Involved in Hepatitis B Virus Morphogenesis

1999

Little is known about host cell factors necessary for hepatitis B virus (HBV) assembly which involves envelopment of cytosolic nucleocapsids by the S, M and L transmembrane viral envelope proteins and subsequent budding into intraluminal cisternae. Central to virogenesis is the L protein that mediates hepatocyte receptor binding and envelopment of capsids. To serve these topologically conflicting roles, L protein exhibits an unusual dual membrane topology, disposing its N-terminal preS domain inside and outside of the virion lipid envelope. The mixed topology is achieved by posttranslational preS translocation of about half of the L protein molecules across a post-endoplasmic reticulum memb…

Hepatitis B virusProtein FoldingCalnexinHSC70 Heat-Shock ProteinsClinical BiochemistryBiochemistryViral Matrix ProteinsCytosolViral Envelope ProteinsViral envelopeCalnexinMorphogenesisAnimalsHumansHSP70 Heat-Shock ProteinsProtein PrecursorsMolecular BiologyHepatitis B Surface AntigensViral matrix proteinbiologyChemistryCalcium-Binding ProteinsHSC70 Heat-Shock ProteinsBiological TransportVirologyTransmembrane proteinCell biologyProtein BiosynthesisMembrane topologyChaperone (protein)COS Cellsbiology.proteinProtein foldingCarrier ProteinsMolecular ChaperonesBiological Chemistry

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