Featured Publications
Application of multiplex amplicon deep-sequencing (MAD-seq) to screen for putative drug resistance markers in the Necator americanus isotype-1 β-tubulin gene
George S, Suwondo P, Akorli J, Otchere J, Harrison LM, Bilguvar K, Knight JR, Humphries D, Wilson MD, Caccone A, Cappello M. Application of multiplex amplicon deep-sequencing (MAD-seq) to screen for putative drug resistance markers in the Necator americanus isotype-1 β-tubulin gene. Scientific Reports 2022, 12: 11459. PMID: 35794459, PMCID: PMC9259660, DOI: 10.1038/s41598-022-15718-1.Peer-Reviewed Original ResearchConceptsSingle nucleotide polymorphismsPeriodic mass drug administrationHigh-risk groupCross-sectional studyDrug resistance markersMass drug administrationResistance-associated mutationsHookworm Necator americanusPost-treatment samplesIsotype-1 β-tubulin geneHookworm infectionPersistent infectionResistance markersDrug AdministrationNecator americanusInfection statusVeterinary nematodesInfectionMarkersNucleotide polymorphismsSensitive toolBenzimidazole drugsNucleotide allelesComparison of percutaneous vs oral infection of hamsters with the hookworm Ancylostoma ceylanicum: Parasite development, pathology and primary immune response
Bungiro RD, Harrison LM, Dondji B, Cappello M. Comparison of percutaneous vs oral infection of hamsters with the hookworm Ancylostoma ceylanicum: Parasite development, pathology and primary immune response. PLOS Neglected Tropical Diseases 2022, 16: e0010098. PMID: 34986139, PMCID: PMC8765627, DOI: 10.1371/journal.pntd.0010098.Peer-Reviewed Original ResearchConceptsCellular immune responsesGolden Syrian hamstersImmune responsePercutaneous infectionOral infectionSyrian hamstersAncylostoma ceylanicumPrimary immune responseRoute of infectionModerate growth delayFaecal egg outputPercutaneous groupImmunological manifestationsAntibody titersHookworm Ancylostoma ceylanicumInfected hamstersWorm recoveryLarval antigensBlood hemoglobinDisease pathogenesisHost responseGrowth delayHuman infectionsInfectionA. ceylanicum
2023
The effect of single dose albendazole (400 mg) treatment on the human gut microbiome of hookworm-infected Ghanaian individuals
Appiah-Twum F, Akorli J, Okyere L, Sagoe K, Osabutey D, Cappello M, Wilson M. The effect of single dose albendazole (400 mg) treatment on the human gut microbiome of hookworm-infected Ghanaian individuals. Scientific Reports 2023, 13: 11302. PMID: 37438457, PMCID: PMC10338455, DOI: 10.1038/s41598-023-38376-3.Peer-Reviewed Original ResearchConceptsHookworm infectionAlbendazole treatmentMicrobiota compositionStool samplesGut microbiomeGut microbiome dysbiosisInfection cure rateKintampo North MunicipalityPre-treatment statePotential microbial biomarkersAdjunct treatmentAnthelminthic therapySingle doseCure rateMicrobiome dysbiosisTreatment outcomesGut homeostasisPharmacological responseProbiotic supplementationGut microbiotaUninfected individualsCommensal bacteriaInfected individualsTherapy outcomeHuman gut microbiome
2020
Dogs and pigs are transport hosts of Necator americanus: Molecular evidence for a zoonotic mechanism of human hookworm transmission in Ghana
Boyko RH, Harrison L, Humphries D, Galvani AP, Townsend JP, Otchere J, Wilson MD, Cappello M. Dogs and pigs are transport hosts of Necator americanus: Molecular evidence for a zoonotic mechanism of human hookworm transmission in Ghana. Zoonoses And Public Health 2020, 67: 474-483. PMID: 32529782, DOI: 10.1111/zph.12708.Peer-Reviewed Original ResearchConceptsPig fecal samplesProspective molecular studyNematode Toxocara canisPig ownershipPig samplesNematode larvaeAnimal faecesTransport hostsDog ownershipKintampo NorthFecal samplesToxocara canisProxy of exposureHuman infectionsPigsHookworm eggsSubsequent prospective studyHookworm transmissionDogsResource-limited countriesFaecesPCR analysisGhanaMolecular evidenceSignificant morbidity
2019
Genetic Markers of Benzimidazole Resistance among Human Hookworms (Necator americanus) in Kintampo North Municipality, Ghana.
Orr AR, Quagraine JE, Suwondo P, George S, Harrison LM, Dornas FP, Evans B, Caccone A, Humphries D, Wilson MD, Cappello M. Genetic Markers of Benzimidazole Resistance among Human Hookworms (Necator americanus) in Kintampo North Municipality, Ghana. American Journal Of Tropical Medicine And Hygiene 2019, 100: 351-356. PMID: 30734697, PMCID: PMC6367626, DOI: 10.4269/ajtmh.18-0727.Peer-Reviewed Original ResearchConceptsMass drug administrationSoil-transmitted helminthsKintampo North MunicipalitySchool-aged childrenSingle nucleotide polymorphismsPolymerase chain reactionEffectiveness of MDAWild-type SNPsInfected study subjectsPeriodic mass drug administrationResistance-associated single nucleotide polymorphismsCross-sectional studyResistance-associated mutationsWorld Health OrganizationHookworm infectionDrug exposureHookworm eggsUnreported associationStudy subjectsDrug AdministrationPosttreatment samplesChemotherapeutic approachesGrowth delayHuman hookwormHealth Organization
2016
Hamsters vaccinated with Ace-mep-7 DNA vaccine produced protective immunity against Ancylostoma ceylanicum infection
Wiśniewski M, Jaros S, Bąska P, Cappello M, Długosz E, Wędrychowicz H. Hamsters vaccinated with Ace-mep-7 DNA vaccine produced protective immunity against Ancylostoma ceylanicum infection. Experimental Parasitology 2016, 163: 1-7. PMID: 26795262, DOI: 10.1016/j.exppara.2016.01.006.Peer-Reviewed Original ResearchConceptsA. ceylanicum infectionAncylostoma ceylanicum infectionHookworm speciesWorm burden reductionsSyrian golden hamstersProtective immunityDNA vaccineGut mucosaGastrointestinal tractIntestinal nematodesGolden hamstersBurden reductionAdult wormsHemoglobin digestionEgg countsImmunizationVaccineInfectionHamstersMetalloproteasesMucosaHookwormBloodTractImmunity
2014
Transcriptional profiling of the spleen in progressive visceral leishmaniasis reveals mixed expression of type 1 and type 2 cytokine-responsive genes
Espitia CM, Saldarriaga OA, Travi BL, Osorio EY, Hernandez A, Band M, Patel MJ, Medina AA, Cappello M, Pekosz A, Melby PC. Transcriptional profiling of the spleen in progressive visceral leishmaniasis reveals mixed expression of type 1 and type 2 cytokine-responsive genes. BMC Immunology 2014, 15: 38. PMID: 25424735, PMCID: PMC4253007, DOI: 10.1186/s12865-014-0038-z.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCluster AnalysisCricetinaeCytokinesDisease ProgressionDNA, ComplementaryExpressed Sequence TagsGene Expression ProfilingGene Expression RegulationGene OntologyHumansInterferon-gammaLeishmania donovaniLeishmaniasis, VisceralMesocricetusMolecular Sequence AnnotationOligonucleotide Array Sequence AnalysisPrincipal Component AnalysisRNA, MessengerSignal TransductionSpleenUp-RegulationConceptsSyrian golden hamstersVisceral leishmaniasisHamster modelGolden hamstersProgressive visceral leishmaniasisIL-4/ILIFN-γ responsesAlternative macrophage activationProgression of diseaseStudy of immunopathogenesisHamster infection modelPolarization of macrophagesImmune cell traffickingImmune response genesImmune-related genesSpleen responseImmunopathological featuresMassive splenomegalyInfected groupMacrophage activationIntracellular protozoanCell traffickingType 1Infection modelLeishmaniasisMolecular cloning and characterization of a nematode polyprotein antigen/allergen from the human and animal hookworm Ancylostoma ceylanicum
Fairfax KC, Harrison LM, Cappello M. Molecular cloning and characterization of a nematode polyprotein antigen/allergen from the human and animal hookworm Ancylostoma ceylanicum. Molecular And Biochemical Parasitology 2014, 198: 37-44. PMID: 25481749, PMCID: PMC4354846, DOI: 10.1016/j.molbiopara.2014.11.005.Peer-Reviewed Original ResearchConceptsAmino acid sequenceFatty acids de novoShares sequence identityExcretory/secretory proteinsPseudocoelomic spaceMolecular cloningCis-parinaric acidPartial cDNASequence identityAcid sequenceFatty acidsSimilar proteinsSecretory proteinsHookworm biologyRecombinant subunitsSoluble adult worm extractProteinAntigens/allergensSubunits
2013
In vitro Screening of Compounds against Laboratory and Field Isolates of Human Hookworm Reveals Quantitative Differences in Anthelmintic Susceptibility
Treger RS, Otchere J, Keil MF, Quagraine JE, Rai G, Mott BT, Humphries DL, Wilson M, Cappello M, Vermeire JJ. In vitro Screening of Compounds against Laboratory and Field Isolates of Human Hookworm Reveals Quantitative Differences in Anthelmintic Susceptibility. American Journal Of Tropical Medicine And Hygiene 2013, 90: 71-74. PMID: 24297811, PMCID: PMC3886431, DOI: 10.4269/ajtmh.12-0547.Peer-Reviewed Original ResearchConceptsField isolatesA. ceylanicumHookwormScreening of compoundsAncylostoma ceylanicumHuman hookwormAnthelmintic compoundsLaboratory strainsHookworm speciesPercent inhibitionSchool childrenTwofold increaseSelect compoundsAnthelmintic activityNovel anthelmintic compoundsAnthelmintic susceptibilityBrong Ahafo RegionIsolatesAhafo RegionAncylostoma ceylanicum metalloprotease 6 DNA vaccination induces partial protection against hookworm challenge infection
Wiśniewski M, Jaros S, Bąska P, Cappello M, Wędrychowicz H. Ancylostoma ceylanicum metalloprotease 6 DNA vaccination induces partial protection against hookworm challenge infection. Acta Parasitologica 2013, 58: 376-383. PMID: 23990436, DOI: 10.2478/s11686-013-0151-9.Peer-Reviewed Original ResearchConceptsChallenge infectionAnthelminthic drug resistanceEffective human vaccineWorm burden reductionsGroups of hamstersIron deficiency anemiaCDNA vaccineTriple immunizationInfected childrenDeficiency anemiaDNA vaccineHookworm infectionDNA vaccinationHuman vaccinesAnimal modelsNumerous antigensVaccine developmentGrowth retardationIntestinal nematodesDrug resistanceVaccineBurden reductionPartial protectionInfectionHemoglobin digestionPeroxiredoxin-1 from the Human Hookworm Ancylostoma ceylanicum Forms a Stable Oxidized Decamer and Is Covalently Inhibited by Conoidin A
Nguyen JB, Pool CD, Wong CY, Treger RS, Williams DL, Cappello M, Lea WA, Simeonov A, Vermeire JJ, Modis Y. Peroxiredoxin-1 from the Human Hookworm Ancylostoma ceylanicum Forms a Stable Oxidized Decamer and Is Covalently Inhibited by Conoidin A. Cell Chemical Biology 2013, 20: 991-1001. PMID: 23891152, PMCID: PMC3755041, DOI: 10.1016/j.chembiol.2013.06.011.Peer-Reviewed Original ResearchHookworm Infection among School Age Children in Kintampo North Municipality, Ghana: Nutritional Risk Factors and Response to Albendazole Treatment
Humphries D, Simms BT, Davey D, Otchere J, Quagraine J, Terryah S, Newton S, Berg E, Harrison LM, Boakye D, Wilson M, Cappello M. Hookworm Infection among School Age Children in Kintampo North Municipality, Ghana: Nutritional Risk Factors and Response to Albendazole Treatment. American Journal Of Tropical Medicine And Hygiene 2013, 89: 540-548. PMID: 23836564, PMCID: PMC3771297, DOI: 10.4269/ajtmh.12-0605.Peer-Reviewed Original ResearchConceptsKintampo North MunicipalityHookworm infectionCure rateSchool-aged childrenModest cure ratesSingle-dose albendazoleNutritional risk factorsLevels of antibodiesYears of ageAge childrenMalaria parasitemiaAlbendazole treatmentRisk factorsChildren 6InfectionInfection statusHealth careSignificant predictorsAnimal foodsHookwormAlbendazoleFurther investigationAgeChildrenLow consumptionCloning and molecular characterization of cDNAs encoding three Ancylostoma ceylanicum secreted proteins
Siwińska A, Bąska P, Daniłowicz-Luebert E, Januszkiewicz K, Długosz E, Wędrychowicz H, Cappello M, Wiśniewski M. Cloning and molecular characterization of cDNAs encoding three Ancylostoma ceylanicum secreted proteins. Acta Parasitologica 2013, 58: 112-118. PMID: 23377920, DOI: 10.2478/s11686-013-0116-z.Peer-Reviewed Original Research
2012
Frequency and intensity of exposure mediate resistance to experimental infection with the hookworm, Ancylostoma ceylanicum
Davey D, Manickam N, Simms BT, Harrison LM, Vermeire JJ, Cappello M. Frequency and intensity of exposure mediate resistance to experimental infection with the hookworm, Ancylostoma ceylanicum. Experimental Parasitology 2012, 133: 243-249. PMID: 23232252, PMCID: PMC3580025, DOI: 10.1016/j.exppara.2012.11.010.Peer-Reviewed Original ResearchConceptsExperimental infectionThird-stage hookworm larvaeParasite-specific IgAHumoral immune responseStudy of pathogenesisResource-limited countriesHuman hookworm diseaseHookworm infectionLifelong susceptibilityPrimary infectionImmune responseProlonged susceptibilitySubsequent challengeAntibody productionVaccine developmentHookworm larvaeHookworm diseaseIntestinal nematodesInfectionPathological effectsRepeated exposureAncylostoma ceylanicumContinued susceptibilityMajor causeMediate resistance
2011
Drug Repositioning and Pharmacophore Identification in the Discovery of Hookworm MIF Inhibitors
Cho Y, Vermeire JJ, Merkel JS, Leng L, Du X, Bucala R, Cappello M, Lolis E. Drug Repositioning and Pharmacophore Identification in the Discovery of Hookworm MIF Inhibitors. Cell Chemical Biology 2011, 18: 1089-1101. PMID: 21944748, PMCID: PMC3294498, DOI: 10.1016/j.chembiol.2011.07.011.Peer-Reviewed Original ResearchMeSH KeywordsAncylostomatoideaAnimalsAnti-Inflammatory Agents, Non-SteroidalBinding SitesCatalytic DomainCrystallography, X-RayDiureticsDrug RepositioningFurosemideHigh-Throughput Screening AssaysHookworm InfectionsHumansKineticsMacrophage Migration-Inhibitory FactorsMeclofenamic AcidSmall Molecule LibrariesConceptsNonsteroidal anti-inflammatory drugsMacrophage migration inhibitory factorMigration inhibitory factorAnti-inflammatory drugsIntestinal nematode parasitesSodium meclofenamateHigh-throughput screenMIF inhibitorsAnimal modelsTherapeutic efficacyBioactive compound librariesInhibitory factorHookworm diseaseDiuretic activityPartial protectionTautomerase activityFurosemideDiseaseDrugsFDADrug repositioningSubmicromolar inhibitionInhibitorsNew pharmacophoreDiureticsAncylostoma ceylanicum Excretory–Secretory Protein 2 Adopts a Netrin-Like Fold and Defines a Novel Family of Nematode Proteins
Kucera K, Harrison LM, Cappello M, Modis Y. Ancylostoma ceylanicum Excretory–Secretory Protein 2 Adopts a Netrin-Like Fold and Defines a Novel Family of Nematode Proteins. Journal Of Molecular Biology 2011, 408: 9-17. PMID: 21352830, PMCID: PMC3070796, DOI: 10.1016/j.jmb.2011.02.033.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAncylostomaAncylostomatoideaAncylostomiasisAnimalsComplement System ProteinsHelminth ProteinsHumansMatrix MetalloproteinasesMolecular Sequence DataNerve Growth FactorsNetrin-1Protein ConformationProtein FoldingSequence Homology, Amino AcidTissue Inhibitor of MetalloproteinasesTumor Suppressor ProteinsConceptsMatrix metalloproteasesHost immune responseComplement factor C3Nematode proteinsProtein 2Complement-mediated cell lysisHookworm anaemiaMucosal vaccinesImmune responseUseful model organismFactor C3Decoy receptorDisease pathogenesisTissue inhibitorIntestinal attachmentNovel familyAncylostoma ceylanicumImmunoreactive moleculesAdult wormsGlobal healthModel organismsHookwormSequence homologyÅ resolutionHuman parasites
2010
Duplex real-time reverse transcriptase PCR to determine cytokine mRNA expression in a hamster model of New World cutaneous leishmaniasis
Espitia CM, Zhao W, Saldarriaga O, Osorio Y, Harrison LM, Cappello M, Travi BL, Melby PC. Duplex real-time reverse transcriptase PCR to determine cytokine mRNA expression in a hamster model of New World cutaneous leishmaniasis. BMC Immunology 2010, 11: 31. PMID: 20569429, PMCID: PMC2909172, DOI: 10.1186/1471-2172-11-31.Peer-Reviewed Original ResearchConceptsReal-time RT-PCR assaysReal-time reverse transcriptase PCRRT-PCR assaysReverse transcriptase-PCRCutaneous leishmaniasisType 2 cytokine responsesNew World cutaneous leishmaniasisMRNA expressionDistinct immunological featuresCytokine mRNA expressionChemokine ligand 22Analysis of interleukinChemokine receptor 4Transcriptase-PCRReal-time RT-PCRImmune response moleculesMechanisms of diseaseIL-21IL-10Cytokine responsesFoxp3 expressionIL-12p40Immunological featuresIL-13Duplex real-time RT-PCR assayCD4+ T cells mediate mucosal and systemic immune responses to experimental hookworm infection
DONDJI B, SUN T, BUNGIRO RD, VERMEIRE JJ, HARRISON LM, BIFULCO C, CAPPELLO M. CD4+ T cells mediate mucosal and systemic immune responses to experimental hookworm infection. Parasite Immunology 2010, 32: 406-413. PMID: 20500671, PMCID: PMC3241967, DOI: 10.1111/j.1365-3024.2010.01204.x.Peer-Reviewed Original ResearchConceptsT cellsImmune responseHookworm infectionHost cellular immune responseExperimental hookworm infectionT-cell depletionMesenteric lymph nodesSystemic immune responsesCellular immune responsesHumoral immune responseIntestinal nematode infectionsIntestinal worm burdenResource-limited countriesHookworm antigensLymph nodesSevere anemiaIntraperitoneal injectionLymphocyte proliferationHookworm Ancylostoma ceylanicumIsotype controlDisease pathogenesisWorm burdenSyrian hamstersAncylostoma ceylanicumEffector role
2009
Characterisation of a fatty acid and retinol binding protein orthologue from the hookworm Ancylostoma ceylanicum
Fairfax KC, Vermeire JJ, Harrison LM, Bungiro RD, Grant W, Husain SZ, Cappello M. Characterisation of a fatty acid and retinol binding protein orthologue from the hookworm Ancylostoma ceylanicum. International Journal For Parasitology 2009, 39: 1561-1571. PMID: 19591834, PMCID: PMC2760681, DOI: 10.1016/j.ijpara.2009.06.005.Peer-Reviewed Original ResearchConceptsMucosal adjuvant cholera toxinAdjuvant cholera toxinCause of anemiaLive adult wormsIntestinal worm burdenFatty acidsResource limited countriesFatty acid uptakeHookworm Ancylostoma ceylanicumReal-time PCRFatty acids de novoWorm burdenVaccine developmentLimited countriesIntestinal nematodesEx vivoA. ceylanicumCholera toxinHookworm biologyIndividual fatty acidsAncylostoma ceylanicumAcid uptakeAdult wormsProtein 1Potential role
2008
Orthologs of macrophage migration inhibitory factor from parasitic nematodes
Vermeire JJ, Cho Y, Lolis E, Bucala R, Cappello M. Orthologs of macrophage migration inhibitory factor from parasitic nematodes. Trends In Parasitology 2008, 24: 355-363. PMID: 18603473, PMCID: PMC3615561, DOI: 10.1016/j.pt.2008.04.007.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsMacrophage migration inhibitory factorParasitic nematodesMigration inhibitory factorHost-parasite interfaceSpecies-specific activityDevelopmental biologyThree-dimensional structureMammalian hostsInhibitory factorHost cellular immune responseParasite survivalChronic helminth infectionsVaccine-based strategiesCellular immune responsesOrthologsMIF moleculeParasite moleculesNematodesHost cytokinesImmune responseHelminth infectionsDisease controlIdeal targetRecent progressMolecules