2022
Plasmodium infection is associated with cross-reactive antibodies to carbohydrate epitopes on the SARS-CoV-2 Spike protein
Lapidus S, Liu F, Casanovas-Massana A, Dai Y, Huck J, Lucas C, Klein J, Filler R, Strine M, Sy M, Deme A, Badiane A, Dieye B, Ndiaye I, Diedhiou Y, Mbaye A, Diagne C, Vigan-Womas I, Mbengue A, Sadio B, Diagne M, Moore A, Mangou K, Diallo F, Sene S, Pouye M, Faye R, Diouf B, Nery N, Costa F, Reis M, Muenker M, Hodson D, Mbarga Y, Katz B, Andrews J, Campbell M, Srivathsan A, Kamath K, Baum-Jones E, Faye O, Sall A, Vélez J, Cappello M, Wilson M, Ben-Mamoun C, Tedder R, McClure M, Cherepanov P, Somé F, Dabiré R, Moukoko C, Ouédraogo J, Boum Y, Shon J, Ndiaye D, Wisnewski A, Parikh S, Iwasaki A, Wilen C, Ko A, Ring A, Bei A. Plasmodium infection is associated with cross-reactive antibodies to carbohydrate epitopes on the SARS-CoV-2 Spike protein. Scientific Reports 2022, 12: 22175. PMID: 36550362, PMCID: PMC9778468, DOI: 10.1038/s41598-022-26709-7.Peer-Reviewed Original ResearchConceptsCross-reactive antibodiesSARS-CoV-2Positive SARS-CoV-2 antibody resultsPositive SARS-CoV-2 antibodiesSARS-CoV-2 reactivitySARS-CoV-2 antibodiesAcute malaria infectionSpike proteinAntibody test resultsPre-pandemic samplesMalaria-endemic countriesPopulation-level immunityMalaria-endemic regionsSpike S1 subunitNon-endemic countriesSARS-CoV-2 spike proteinSARS-CoV-2 proteinsPopulation-level exposureCOVID-19 transmissionMalaria exposureFalse-positive resultsMalaria infectionDisease burdenPlasmodium infectionAntibody results
2018
De Novo Mutations Resolve Disease Transmission Pathways in Clonal Malaria
Redmond SN, MacInnis BM, Bopp S, Bei AK, Ndiaye D, Hartl DL, Wirth DF, Volkman SK, Neafsey DE. De Novo Mutations Resolve Disease Transmission Pathways in Clonal Malaria. Molecular Biology And Evolution 2018, 35: 1678-1689. PMID: 29722884, PMCID: PMC5995194, DOI: 10.1093/molbev/msy059.Peer-Reviewed Original ResearchConceptsDe novo mutationsEvolutionary ratesSlow evolutionary rateNovo mutationsComplex life cycleSlow generation timeLow-complexity regionsGenomic regionsLarge genomesGenomic epidemiology approachReintroduction scenariosCombination of sequencingP. falciparumViral speciesMutation rateClonal lineagesGenomeMutation studiesLibrary preparationIdentical parasitesGeneration timeBacterial pathogensMalaria parasitesMutationsGenomic epidemiologyDramatic Changes in Malaria Population Genetic Complexity in Dielmo and Ndiop, Senegal, Revealed Using Genomic Surveillance
Bei AK, Niang M, Deme AB, Daniels RF, Sarr FD, Sokhna C, Talla C, Faye J, Diagne N, Doucoure S, Mboup S, Wirth DF, Tall A, Ndiaye D, Hartl DL, Volkman SK, Toure-Balde A. Dramatic Changes in Malaria Population Genetic Complexity in Dielmo and Ndiop, Senegal, Revealed Using Genomic Surveillance. The Journal Of Infectious Diseases 2018, 217: 622-627. PMID: 29325146, PMCID: PMC6279132, DOI: 10.1093/infdis/jix580.Peer-Reviewed Original Research
2017
Functional Analysis Reveals Geographical Variation in Inhibitory Immune Responses Against a Polymorphic Malaria Antigen
Bei AK, Ahouidi AD, Dvorin JD, Miura K, Diouf A, Ndiaye D, Premji Z, Diakite M, Mboup S, Long CA, Duraisingh MT. Functional Analysis Reveals Geographical Variation in Inhibitory Immune Responses Against a Polymorphic Malaria Antigen. The Journal Of Infectious Diseases 2017, 216: 267-275. PMID: 28605544, PMCID: PMC5853457, DOI: 10.1093/infdis/jix280.Peer-Reviewed Original ResearchConceptsInhibitory immune responsesVaccine candidate antigenImmune responseTransgenic parasite linesMalaria-endemic regionsReticulocyte-binding protein homologuesMalaria vaccine candidateParasite linesWild-type controlsTotal IgGHumoral responseMalaria antigensAntibody responseVaccine candidatesCandidate antigensMalaria endemicityGrowth inhibition assaysInvasion ligandsAntigenic specificityImmunogenic domainsSpecific antibodiesEndemic sitesAntigenStandardized toolsInhibition assaysContinued Transmission of Zika Virus in Humans in West Africa, 1992–2016
Herrera BB, Chang CA, Hamel DJ, Mboup S, Ndiaye D, Imade G, Okpokwu J, Agbaji O, Bei AK, Kanki PJ. Continued Transmission of Zika Virus in Humans in West Africa, 1992–2016. The Journal Of Infectious Diseases 2017, 215: 1546-1550. PMID: 28398562, PMCID: PMC5853591, DOI: 10.1093/infdis/jix182.Peer-Reviewed Original Research
2016
Ancient human sialic acid variant restricts an emerging zoonotic malaria parasite
Dankwa S, Lim C, Bei AK, Jiang RH, Abshire JR, Patel SD, Goldberg JM, Moreno Y, Kono M, Niles JC, Duraisingh MT. Ancient human sialic acid variant restricts an emerging zoonotic malaria parasite. Nature Communications 2016, 7: 11187. PMID: 27041489, PMCID: PMC4822025, DOI: 10.1038/ncomms11187.Peer-Reviewed Original ResearchConceptsInvasion ligandsSialic acid-independent pathwaysHuman RBCsZoonotic malaria parasiteAbsence of Neu5GcPlasmodium knowlesiMalaria parasitesCell surface receptorsN-glycolylneuraminic acidZoonotic parasitesSialic acid variantsSurface receptorsRBCsReceptorsNeu5GcMacaquesInvasionParasitesCMAHAcetylneuraminic acidAcid variantsHumansMalariaKnowlesi
2012
Functional analysis of erythrocyte determinants of Plasmodium infection
Bei AK, Duraisingh MT. Functional analysis of erythrocyte determinants of Plasmodium infection. International Journal For Parasitology 2012, 42: 575-582. PMID: 22726752, PMCID: PMC3383627, DOI: 10.1016/j.ijpara.2012.03.006.Peer-Reviewed Original ResearchConceptsFunctional analysisErythrocyte determinantsObligate intracellular pathogensPlasmodium infectionTransgenic approachesHuman erythrocytes resultsNatural variationErythrocyte invasionIntracellular pathogensPlasmodium falciparum parasitesUnexplored frontierClinical manifestationsMalaria researchErythrocytes resultsFalciparum parasitesInvasionMalarial diseaseChemical biologicalInfectionErythrocytesParasitesPathogensDeterminantsRemodellingDiscovery
2010
Functional diversification between two related Plasmodium falciparum merozoite invasion ligands is determined by changes in the cytoplasmic domain
Dvorin JD, Bei AK, Coleman BI, Duraisingh MT. Functional diversification between two related Plasmodium falciparum merozoite invasion ligands is determined by changes in the cytoplasmic domain. Molecular Microbiology 2010, 75: 990-1006. PMID: 20487292, PMCID: PMC3627358, DOI: 10.1111/j.1365-2958.2009.07040.x.Peer-Reviewed Original ResearchConceptsCytoplasmic domainFunctional diversificationInvasion pathwaysMulti-gene familyDifferent erythrocyte receptorsAmino acid regionAlternative invasion pathwaysN-terminal amino acidsGenomic regionsProtein homologueTransmembrane domainTransmembrane regionPfRh proteinsErythrocyte receptorEfficient invasionAcid regionInvasive merozoitesHost erythrocytePfRh2bAmino acidsPfRh2aPathway utilizationApical surfaceInvasion ligandsEctodomain