Featured Publications
Dectin-1 stimulation promotes a distinct inflammatory signature in the setting of HIV-infection and aging
Kumar A, Wang J, Esterly A, Radcliffe C, Zhou H, Wyk B, Allore H, Tsang S, Barakat L, Mohanty S, Zhao H, Shaw A, Zapata H. Dectin-1 stimulation promotes a distinct inflammatory signature in the setting of HIV-infection and aging. Aging 2023, 15: 7866-7908. PMID: 37606991, PMCID: PMC10497004, DOI: 10.18632/aging.204927.Peer-Reviewed Original ResearchConceptsDectin-1 stimulationDendritic cellsHIV-positive older adultsOlder adultsDectin-1 functionDistinct immune signaturesDistinct inflammatory signatureMonocytes of HIVCohort of HIVIFN-α productionPro-inflammatory environmentIFN-γ responsesPro-inflammatory phenotypeInnate immune receptorsDistinct gene signaturesStimulation of monocytesInflammatory signatureImmune signaturesHIV infectionIL-12Macrophage signatureCytokine productionIL-6Cytokine increaseHIV
2021
Qualitative assessment of anti‐SARS‐CoV‐2 spike protein immunogenicity (QUASI) after COVID‐19 vaccination in older people living with HIV
Tuan JJ, Zapata H, Critch‐Gilfillan T, Ryall L, Turcotte B, Mutic S, Andrews L, Roh ME, Friedland G, Barakat L, Ogbuagu O. Qualitative assessment of anti‐SARS‐CoV‐2 spike protein immunogenicity (QUASI) after COVID‐19 vaccination in older people living with HIV. HIV Medicine 2021, 23: 178-185. PMID: 34632695, PMCID: PMC8652674, DOI: 10.1111/hiv.13188.Peer-Reviewed Original ResearchMeSH KeywordsAgedBNT162 VaccineHIV InfectionsHumansImmunogenicity, VaccineQualitative ResearchSpike Glycoprotein, CoronavirusConceptsCOVID-19 vaccineCOVID-19 vaccinationFirst doseSeroconversion ratesSecond doseAcute respiratory syndrome coronavirus 2 infectionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infectionYale New Haven Health SystemPrior COVID-19 infectionSyndrome coronavirus 2 infectionSafe COVID-19 vaccineIntegrase strand transfer inhibitorsAnti-spike IgGPositive IgG responseTwo-dose seriesCoronavirus 2 infectionVaccine-induced immunityDurability of protectionCOVID-19 infectionStrand transfer inhibitorsAntiretroviral regimenBNT162b2 vaccineNew seroconversionsPositive IgGQualitative antibody
2018
Impact of Aging and HIV Infection on the Function of the C-Type Lectin Receptor MINCLE in Monocytes
Zapata HJ, Van Ness PH, Avey S, Siconolfi B, Allore HG, Tsang S, Wilson J, Barakat L, Mohanty S, Shaw AC. Impact of Aging and HIV Infection on the Function of the C-Type Lectin Receptor MINCLE in Monocytes. The Journals Of Gerontology Series A 2018, 74: 794-801. PMID: 30239628, PMCID: PMC6521921, DOI: 10.1093/gerona/gly209.Peer-Reviewed Original ResearchConceptsPro-inflammatory environmentHIV infectionInnate immune pattern recognition receptorsPeripheral blood mononuclear cellsImmune pattern recognition receptorsC-type lectin receptorsCohort of HIVBlood mononuclear cellsMulticolor flow cytometryC-type lectin receptor MinclePattern recognition receptorsIL-10IL-12Cytokine productionIL-6Mononuclear cellsImmune responseHost responseCord factorFlow cytometryM. tuberculosisLectin receptorsMycobacterium tuberculosisOlder adultsImpact of aging
2015
Increased Levels of Macrophage Inflammatory Proteins Result in Resistance to R5-Tropic HIV-1 in a Subset of Elite Controllers
Walker WE, Kurscheid S, Joshi S, Lopez CA, Goh G, Choi M, Barakat L, Francis J, Fisher A, Kozal M, Zapata H, Shaw A, Lifton R, Sutton RE, Fikrig E. Increased Levels of Macrophage Inflammatory Proteins Result in Resistance to R5-Tropic HIV-1 in a Subset of Elite Controllers. Journal Of Virology 2015, 89: 5502-5514. PMID: 25740989, PMCID: PMC4442529, DOI: 10.1128/jvi.00118-15.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedCase-Control StudiesCD4-Positive T-LymphocytesChemokine CCL3Chemokine CCL4Chemokine CCL5Chemokines, CCCohort StudiesFemaleGene DosageHIV InfectionsHIV Long-Term SurvivorsHIV-1Host-Pathogen InteractionsHumansMacrophage Inflammatory ProteinsMaleMiddle AgedReceptors, CCR5Receptors, CXCR4RNA, MessengerUp-RegulationConceptsElite controllersHIV-seropositive individualsAntiretroviral therapyT cellsMIP-1βMIP-1αHIV infectionSeropositive individualsAbsence of ARTR5-tropic HIV-1Macrophage inflammatory protein-1αR5-tropic HIVInflammatory protein-1αT cell resistancePandemic health problemRANTES chemokinesHIV replicationRare patientsHealthy controlsTherapeutic effectHIV entryHIV-1X4-tropicHealth problemsProtein-1α
2014
Aging of the human innate immune system in HIV infection
Zapata HJ, Shaw AC. Aging of the human innate immune system in HIV infection. Current Opinion In Immunology 2014, 29: 127-136. PMID: 24997358, PMCID: PMC4145838, DOI: 10.1016/j.coi.2014.06.007.Peer-Reviewed Original ResearchMeSH KeywordsAgingDendritic CellsHIV InfectionsHumansImmunity, InnateInflammationToll-Like ReceptorsConceptsHIV infectionHIV-negative adultsChronic inflammatory statePro-inflammatory environmentInnate immune recognitionInnate immune responseInnate immune systemHuman innate immune systemMicrobial translocationImmune agingInflammatory stateImmune responseEndogenous ligandImmune recognitionImmune systemInfectionMultiple factorsEarly stagesHIV
2013
Initial diagnosis of HIV/AIDS in a 56-year-old man with non-healing forearm lesion
Zapata HJ, Villanueva M, Shenoi S. Initial diagnosis of HIV/AIDS in a 56-year-old man with non-healing forearm lesion. BMJ Case Reports 2013, 2013: bcr2013201184. PMID: 24248316, PMCID: PMC3841407, DOI: 10.1136/bcr-2013-201184.Peer-Reviewed Case Reports and Technical NotesConceptsForearm lesionPatient underwent incisionHIV viral loadMonths of treatmentSignificant medical problemHIV/AIDSEmpiric antibioticsAntiretroviral therapyCD4 countUnderwent incisionInitial diagnosisViral loadStarry stainImmunohistochemistry testingCopies/Bacillary angiomatosisHispanic menMedical problemsLesionsBartonella quintanaCells/PatientsMenHIVAngiomatosis