Search results for " Cpn60"

showing 3 items of 3 documents

Hsp60 chaperonopathies and chaperonotherapy: targets and agents

2014

Hsp60 (Cpn60) assembles into a tetradecamer that interacts with the co-chaperonin Hsp10 (Cpn10) to assist client polypeptides to fold, but it also has other roles, including participation in pathogenic mechanisms.Hsp60 chaperonopathies are pathological conditions, inherited or acquired, in which the chaperone plays a determinant etiologic-pathogenic role. These diseases justify selection of Hsp60 as a target for developing agents that interfere with its pathogenic effects. We provide information on how to proceed.The information available encourages the development of ways to improve Hsp60 activity (positive chaperonotherapy) when deficient or to block it (negative chaperonotherapy) when pa…

InflammationPharmacologyanimal structuresChaperonin 60biologyProtein ConformationfungiClinical BiochemistryChaperonin 60BioinformaticsAutoimmune Diseasesautoimmunity cancer carboranylphenoxyacetanilide chaperonopathies chaperonotherapy chemical compounds Cpn60 electrophilic compounds epolactaene functional domain GroEL Hsp60 inflammation mizoribine structural domainNeoplasmsChaperone (protein)Expert opinionDrug DiscoveryImmunologybiology.proteinAnimalsHumansMolecular MedicineHSP60Cytokine formationA determinantExpert Opinion on Therapeutic Targets
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Upon oxidative stress, the antiapoptotic Hsp60/procaspase-3 complex persists in mucoepidermoid carcinoma cells.

2008

Hsp60, a mitochondrial chaperonin highly conserved during evolution, has been found elevated in the cytosol of cancer cells, both in vivo and in vitro, but its role in determining apoptosis during oxidative stress (OS) has not yet been fully elucidated. The aim of the present work was to study the effects of OS on Hsp60 levels and its interactions with procaspase- 3 (p-C3) and p53 in tumor cells. NCI-H292 (mucoepidermoid carcinoma) cells were exposed to various concentrations of hydrogen peroxide (H2O2) for 24 hours. Cell viability was determined by Trypan blue and MTT assays. DNA damage was assessed by the Comet assay, and apoptosis was measured by the AnnexinV cytofluorimetric test. Expos…

Lung Neoplasmsanimal structuresHistologyCell SurvivalDNA damageBlotting WesternBiophysicsHsp60;procaspase-3;mucoepidermoid carcinomaGene ExpressionTetrazolium SaltsApoptosisBiologymedicine.disease_causechemistry.chemical_compoundCell Line TumormedicineHumansChaperonin Hsp60 Cpn60 procaspase-3 caspase- 3 DNA damage p53 apoptosis.Viability assaylcsh:QH301-705.5FormazansCaspase 3Settore BIO/16 - Anatomia UmanaChaperonin 60DNAHydrogen PeroxideTrypan BlueCell BiologyImmunohistochemistryMolecular biologyComet assayOxidative Stresslcsh:Biology (General)chemistryApoptosisCancer cellCarcinoma MucoepidermoidHSP60Trypan blueComet AssayTumor Suppressor Protein p53Oxidative stressDNA Damage
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Chaperonopathies and chaperonotherapy. Hsp60 as therapeutic target in cancer: potential benefits and risks.

2013

In this minireview we focus on Hsp60 as a target for anticancer therapy. We discuss the new concepts of chaperonopathies and chaperonotherapy and present information on Hsp60 localization in the cell membrane of human tumor cells. We describe novel mechanisms for Hsp60 reaching the extracellular environment that involve membrane-associated stages, as well as data on anti-Hsp60 antibodies found in human sera, both in normal subjects and patients affected by autoimmune diseases. Finally, we discuss possible therapeutic applications of anti-Hsp60 antibodies in cancer treatment, evaluating also side effects on non-tumor cells. In conclusion, the way for investigating Hsp60-targeted anti-tumor t…

animal structuresCellchemical and pharmacologic phenomenaAntineoplastic AgentsBiologycomplex mixturesRisk AssessmentCell membraneDrug Delivery SystemsRisk FactorsNeoplasmsDrug DiscoverymedicineExtracellularAnimalsHumansSecretionPharmacologyMechanism (biology)fungiCancerChaperonin 60medicine.diseasemedicine.anatomical_structureImmunologybiology.proteinCancer researchHsp60 Cpn60 HSPD1 plasma membrane antibodies autoantibodies antitumor immunotherapy anticancer therapy chaperonopathies human sera.HSP60AntibodyCurrent pharmaceutical design
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