2022
Platelet-derived TLT-1 promotes tumor progression by suppressing CD8+ T cells
Tyagi T, Jain K, Yarovinsky TO, Chiorazzi M, Du J, Castro C, Griffin J, Korde A, Martin KA, Takyar SS, Flavell RA, Patel AA, Hwa J. Platelet-derived TLT-1 promotes tumor progression by suppressing CD8+ T cells. Journal Of Experimental Medicine 2022, 220: e20212218. PMID: 36305874, PMCID: PMC9814191, DOI: 10.1084/jem.20212218.Peer-Reviewed Original ResearchConceptsCD8 T cellsT cellsTLT-1Non-small cell lung cancer patientsCell lung cancer patientsTREM-like transcript-1Tumor immunosuppressive mechanismsT cell suppressionLung cancer patientsPatient T cellsNF-κB pathwayPatient-derived tumorsDistinct activation phenotypesNSCLC patientsImmunosuppressive mechanismsSyngeneic tumorsHumanized miceImmunoregulatory rolePrognostic significanceImmunocompetent miceCancer patientsCell suppressionActivation phenotypeReduced tumorTumor growthUnfolded Protein Response Differentially Modulates the Platelet Phenotype
Jain K, Tyagi T, Du J, Hu X, Patell K, Martin KA, Hwa J. Unfolded Protein Response Differentially Modulates the Platelet Phenotype. Circulation Research 2022, 131: 290-307. PMID: 35862006, PMCID: PMC9357223, DOI: 10.1161/circresaha.121.320530.Peer-Reviewed Original ResearchConceptsUPR pathwayProtein responseMouse plateletsUnfolded protein responseActivation of UPRPlatelet phenotypeTranscriptional regulationGenomic regulationProtein misfoldingAnucleate plateletsProtein aggregationUPR activationPhosphorylation of PLCγ2Chemical chaperonesXBP1 pathwayP38 MAPKPERK pathwayUPRPKCδ activationPlatelet physiologyActivation pathwayPathwayPhenotypeIRE1α inhibitionSelective induction
2019
Age associated non-linear regulation of redox homeostasis in the anucleate platelet: Implications for CVD risk patients
Jain K, Tyagi T, Patell K, Xie Y, Kadado AJ, Lee SH, Yarovinsky T, Du J, Hwang J, Martin KA, Testani J, Ionescu CN, Hwa J. Age associated non-linear regulation of redox homeostasis in the anucleate platelet: Implications for CVD risk patients. EBioMedicine 2019, 44: 28-40. PMID: 31130473, PMCID: PMC6604369, DOI: 10.1016/j.ebiom.2019.05.022.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, PhysiologicalAge FactorsAgedAged, 80 and overAgingAnimalsAntioxidantsApoptosisBiomarkersBlood PlateletsCardiovascular DiseasesComorbidityDisease Models, AnimalFemaleHomeostasisHumansMaleMiceMiddle AgedOxidation-ReductionOxidative StressPlatelet ActivationPlatelet AdhesivenessReactive Oxygen SpeciesRisk AssessmentRisk FactorsConceptsRisk patientsMouse studiesPlatelet phenotypeMajor adverse cardiovascular eventsHigh cardiovascular risk patientsAdaptive increaseAdverse cardiovascular eventsCentral pathophysiological roleCVD risk patientsCardiovascular risk patientsAggressive antiplatelet therapyEffect of comorbidityAge group 40Young healthy subjectsAntiplatelet therapyCardiovascular eventsYear age cohortAdvanced ageCVD patientsGroup 40Healthy subjectsPathophysiological roleElderly populationCardiovascular pathologyPatientsMitochondrial MsrB2 serves as a switch and transducer for mitophagy
Lee SH, Lee S, Du J, Jain K, Ding M, Kadado AJ, Atteya G, Jaji Z, Tyagi T, Kim W, Herzog RI, Patel A, Ionescu CN, Martin KA, Hwa J. Mitochondrial MsrB2 serves as a switch and transducer for mitophagy. EMBO Molecular Medicine 2019, 11: emmm201910409. PMID: 31282614, PMCID: PMC6685081, DOI: 10.15252/emmm.201910409.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlood PlateletsCell LineDiabetes MellitusFemaleHumansMethionine Sulfoxide ReductasesMice, Inbred C57BLMice, KnockoutMicrofilament ProteinsMicrotubule-Associated ProteinsMitochondriaMitochondrial Membrane Transport ProteinsMitochondrial Permeability Transition PoreMitophagyMutationOxidation-ReductionOxidative StressParkinson DiseaseSignal TransductionUbiquitinationUbiquitin-Protein LigasesConceptsReduced mitophagyOxidative stress-induced mitophagyNovel regulatory mechanismStress-induced mitophagyLC3 interactionMitochondrial matrixDamaged mitochondriaMsrB2Reactive oxygen speciesRegulatory mechanismsMethionine oxidationMitophagyMitochondriaPlatelet apoptosisOxygen speciesPlatelet-specific knockoutApoptosisPathophysiological importanceExpressionImportant roleUbiquitinationParkin mutationsParkinSpeciesLC3
2016
Inducing mitophagy in diabetic platelets protects against severe oxidative stress
Lee SH, Du J, Stitham J, Atteya G, Lee S, Xiang Y, Wang D, Jin Y, Leslie KL, Spollett G, Srivastava A, Mannam P, Ostriker A, Martin KA, Tang WH, Hwa J. Inducing mitophagy in diabetic platelets protects against severe oxidative stress. EMBO Molecular Medicine 2016, 8: 779-795. PMID: 27221050, PMCID: PMC4931291, DOI: 10.15252/emmm.201506046.Peer-Reviewed Original ResearchConceptsDiabetes mellitusOxidative stressThrombotic cardiovascular eventsAnticipation of exposureCardiovascular eventsOxidative stress-mediated mitochondrial damageNormal platelet activationDiabetic plateletsPlatelet functionPlatelet pathologyPlatelet activationSevere oxidative stressNormal plateletsConsiderable mortalityProtective mechanismMitochondrial damageMellitusThrombosisPlateletsMitophagy inductionPhosphorylated p53Mitophagy machineryPlatelets resultsAutophagy processJNK activation
2015
Hyperglycemia repression of miR-24 coordinately upregulates endothelial cell expression and secretion of von Willebrand factor
Xiang Y, Cheng J, Wang D, Hu X, Xie Y, Stitham J, Atteya G, Du J, Tang WH, Lee SH, Leslie K, Spollett G, Liu Z, Herzog E, Herzog RI, Lu J, Martin KA, Hwa J. Hyperglycemia repression of miR-24 coordinately upregulates endothelial cell expression and secretion of von Willebrand factor. Blood 2015, 125: 3377-3387. PMID: 25814526, PMCID: PMC4447857, DOI: 10.1182/blood-2015-01-620278.Peer-Reviewed Original ResearchConceptsVon Willebrand factorDiabetes mellitusMiR-24Diabetic patientsAdverse thrombotic eventsThrombotic cardiovascular eventsVWF expressionWillebrand factorDiabetic mouse modelNovel therapeutic targetHistamine H1 receptorsEndothelial cell expressionHyperglycemia-induced activationCardiovascular eventsThrombotic eventsH1 receptorsMouse modelVWF levelsTherapeutic targetCell expressionMellitusPatientsEndothelial cellsElevated levelsReactive oxygen species
2014
Aldose Reductase–Mediated Phosphorylation of p53 Leads to Mitochondrial Dysfunction and Damage in Diabetic Platelets
Tang WH, Stitham J, Jin Y, Liu R, Lee SH, Du J, Atteya G, Gleim S, Spollett G, Martin K, Hwa J. Aldose Reductase–Mediated Phosphorylation of p53 Leads to Mitochondrial Dysfunction and Damage in Diabetic Platelets. Circulation 2014, 129: 1598-1609. PMID: 24474649, PMCID: PMC3989377, DOI: 10.1161/circulationaha.113.005224.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAldehyde ReductaseAnimalsApoptosisbcl-X ProteinBlood PlateletsCarotid Artery DiseasesDiabetes Mellitus, ExperimentalDiabetes Mellitus, Type 2Disease Models, AnimalFemaleHumansMaleMiceMice, Inbred C57BLMice, KnockoutMiddle AgedMitochondrial DiseasesPhosphorylationSignal TransductionThrombosisTumor Suppressor Protein p53ConceptsMitochondrial dysfunctionHyperglycemia-induced mitochondrial dysfunctionP53 phosphorylationAntiapoptotic protein Bcl-xL.Platelet apoptosisMitochondrial damageMitochondrial membrane potentialReductase activationActivation of p53Reactive oxygen species productionOxygen species productionBcl-xL.Molecular pathwaysSevere mitochondrial damagePhosphorylationNovel therapeutic targetAldose reductase activationSpecies productionMembrane potentialApoptosisCentral roleTherapeutic targetDose-dependent mannerActivationP53
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