2021
Live imaging of SARS-CoV-2 infection in mice reveals that neutralizing antibodies require Fc function for optimal efficacy
Ullah I, Prévost J, Ladinsky MS, Stone H, Lu M, Anand SP, Beaudoin-Bussières G, Symmes K, Benlarbi M, Ding S, Gasser R, Fink C, Chen Y, Tauzin A, Goyette G, Bourassa C, Medjahed H, Mack M, Chung K, Wilen CB, Dekaban GA, Dikeakos JD, Bruce EA, Kaufmann DE, Stamatatos L, McGuire AT, Richard J, Pazgier M, Bjorkman PJ, Mothes W, Finzi A, Kumar P, Uchil PD. Live imaging of SARS-CoV-2 infection in mice reveals that neutralizing antibodies require Fc function for optimal efficacy. Immunity 2021, 54: 2143-2158.e15. PMID: 34453881, PMCID: PMC8372518, DOI: 10.1016/j.immuni.2021.08.015.Peer-Reviewed Original ResearchConceptsCOVID-19 convalescent subjectsSARS-CoV-2 infectionBioluminescence imagingK18-hACE2 miceLive bioluminescence imagingNatural killer cellsFc effector functionsSARS-CoV-2Convalescent subjectsKiller cellsPotent NAbsImmune protectionInflammatory responseEffector functionsNasal cavityNaB treatmentOptimal efficacyFc functionDepletion studiesMiceNAbsCOVID-19Direct neutralizationInfectionAntibodiesIn vivo imaging of retrovirus infection reveals a role for Siglec-1/CD169 in multiple routes of transmission
Haugh KA, Ladinsky MS, Ullah I, Stone HM, Pi R, Gilardet A, Grunst MW, Kumar P, Bjorkman PJ, Mothes W, Uchil PD. In vivo imaging of retrovirus infection reveals a role for Siglec-1/CD169 in multiple routes of transmission. ELife 2021, 10: e64179. PMID: 34223819, PMCID: PMC8298093, DOI: 10.7554/elife.64179.Peer-Reviewed Original ResearchConceptsSentinel macrophagesSiglec-1/CD169Immune surveillance functionCommon host factorMesenteric sacsPeyer's patchesGastrointestinal tractOral routeReporter virusRetrovirus transmissionRetrovirus infectionFrontline cellsRetroviral pathogenesisHost factorsBioluminescence imagingVirus entryIncoming virusInfectionRetrovirus life cycleCD169Early eventsMacrophagesMultiscale imaging approachVirusSurveillance functionModulating HIV-1 envelope glycoprotein conformation to decrease the HIV-1 reservoir
Rajashekar JK, Richard J, Beloor J, Prévost J, Anand SP, Beaudoin-Bussières G, Shan L, Herndler-Brandstetter D, Gendron-Lepage G, Medjahed H, Bourassa C, Gaudette F, Ullah I, Symmes K, Peric A, Lindemuth E, Bibollet-Ruche F, Park J, Chen HC, Kaufmann DE, Hahn BH, Sodroski J, Pazgier M, Flavell RA, Smith AB, Finzi A, Kumar P. Modulating HIV-1 envelope glycoprotein conformation to decrease the HIV-1 reservoir. Cell Host & Microbe 2021, 29: 904-916.e6. PMID: 34019804, PMCID: PMC8214472, DOI: 10.1016/j.chom.2021.04.014.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, NeutralizingAntibody-Dependent Cell CytotoxicityAntiviral AgentsCD4 AntigensCD4-Positive T-LymphocytesCell LineEnv Gene Products, Human Immunodeficiency VirusEpitopesFemaleGlycoproteinsHEK293 CellsHIV InfectionsHIV-1HumansImmunoglobulin Fc FragmentsKiller Cells, NaturalMaleMiceMice, SCIDModels, AnimalProtein ConformationVirus ReplicationConceptsAntibody-dependent cellular cytotoxicityHIV-1 reservoirFc effector functionsViral reboundHumanized miceHIV-1HIV-1-infected individualsHIV-1-infected cellsAutologous HIV-1Natural killer cellsCD4-mimetic compoundsHIV-1 replicationSmall CD4-mimetic compoundsART interruptionFunctional cureNK cellsKiller cellsCellular cytotoxicityTherapeutic utilityInfected individualsCD4mcVirus reservoirMiceViral envelopeAntibody recognitionPrevalence of clinical malaria and household characteristics of patients in tribal districts of Pakistan
Karim A, Yasir M, Ali T, Malik S, Ullah I, Qureshi N, Yuanting H, Azhar E, Jin H. Prevalence of clinical malaria and household characteristics of patients in tribal districts of Pakistan. PLOS Neglected Tropical Diseases 2021, 15: e0009371. PMID: 33939717, PMCID: PMC8118523, DOI: 10.1371/journal.pntd.0009371.Peer-Reviewed Original ResearchConceptsP. vivaxTribal districtPlasmodium speciesNational Malaria Control ProgrammeP. falciparum casesFrequency of complicationsHigh-burden districtsControl of malariaMalaria control programmesMalaria-suspected patientsPublic health concernSpecies of malariaStrong health infrastructureOccurrence of malariaMultiple convulsionsClinical malariaFalciparum casesSevere malariaSpread of malariaUncomplicated casesHigh prevalenceMalaria casesClinical investigationEpidemiological dataBlood samples
2020
Nose-to-Brain Delivery of Cancer-Targeting Paclitaxel-Loaded Nanoparticles Potentiates Antitumor Effects in Malignant Glioblastoma
Ullah I, Chung K, Bae S, Li Y, Kim C, Choi B, Nam HY, Kim SH, Yun CO, Lee KY, Kumar P, Lee SK. Nose-to-Brain Delivery of Cancer-Targeting Paclitaxel-Loaded Nanoparticles Potentiates Antitumor Effects in Malignant Glioblastoma. Molecular Pharmaceutics 2020, 17: 1193-1204. PMID: 31944768, DOI: 10.1021/acs.molpharmaceut.9b01215.Peer-Reviewed Original ResearchConceptsGlioblastoma multiformeBrain deliveryPoor drug distributionNormal brain cellsCancer cell proliferationCurative treatmentTumor burdenIntranasal inoculationTumor recurrenceAggressive tumorsEnhanced anticancer effectTumor regrowthTherapeutic evidenceTumor remnantsGBM therapyAntitumor effectsBrain cellsTherapeutic efficacyMalignant glioblastomaAnticancer effectsCell proliferationCancer-specific deliveryDrug distributionChemotherapyPaclitaxel