Featured Publications
Comparison 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
2021
Effect of hookworm infection and anthelmintic treatment on naturally acquired antibody responses against the GMZ2 malaria vaccine candidate and constituent antigens
Amoani B, Gyan B, Sakyi SA, Abu EK, Nuvor SV, Barnes P, Sarkodie-Addo T, Ahenkorah B, Sewor C, Dwomoh D, Theisen M, Cappello M, Wilson MD, Adu B. Effect of hookworm infection and anthelmintic treatment on naturally acquired antibody responses against the GMZ2 malaria vaccine candidate and constituent antigens. BMC Infectious Diseases 2021, 21: 332. PMID: 33832450, PMCID: PMC8028774, DOI: 10.1186/s12879-021-06027-5.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overAlbendazoleAnthelminticsAntibodies, ProtozoanAntigens, ProtozoanCase-Control StudiesChildChild, PreschoolCross-Sectional StudiesFemaleHookworm InfectionsHumansImmunoglobulin GLongitudinal StudiesMalaria VaccinesMalaria, FalciparumMaleMiddle AgedParasitemiaProtozoan ProteinsYoung AdultConceptsMerozoite surface protein 3Antibody responseHookworm infectionMalaria vaccine candidateConstituent antigensP. falciparumGLURP-R0IgG3 levelsVaccine candidatesLongitudinal cross-sectional studyHigher IgG3 levelsUninfected endemic controlsP. falciparum infectionPlasmodium falciparum merozoite surface protein 3Levels of IgG1Kato-Katz methodCross-sectional studyHigher antibody responseMalaria vaccine efficacyKintampo North MunicipalityAnthelmintic treatmentHookworm treatmentMalaria parasitaemiaAlbendazole treatmentEndemic controls
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
Effectiveness of Albendazole for Hookworm Varies Widely by Community and Correlates with Nutritional Factors: A Cross-Sectional Study of School-Age Children in Ghana.
Humphries D, Nguyen S, Kumar S, Quagraine JE, Otchere J, Harrison LM, Wilson M, Cappello M. Effectiveness of Albendazole for Hookworm Varies Widely by Community and Correlates with Nutritional Factors: A Cross-Sectional Study of School-Age Children in Ghana. American Journal Of Tropical Medicine And Hygiene 2016, 96: 347-354. PMID: 27895280, PMCID: PMC5303035, DOI: 10.4269/ajtmh.16-0682.Peer-Reviewed Original ResearchConceptsEgg reduction rateCross-sectional studyMass drug administrationSchool-aged childrenEffectiveness of albendazoleCure rateDrug AdministrationMid-upper arm circumferenceSoil-transmitted helminth infectionsHost factorsNutritional factorsSingle-dose albendazoleOverall cure rateBlood hemoglobin levelsKintampo North MunicipalitySignificant community-level variationIndividual host factorsWorld Health OrganizationCommon STHHemoglobin levelsArm circumferenceHookworm infectionHelminth infectionsDeworming programsHookworm prevalenceHamsters 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
Molecular 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
Ancylostoma 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 digestionHookworm 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 consumption
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
Epidemiology of Hookworm Infection in Kintampo North Municipality, Ghana: Patterns of Malaria Coinfection, Anemia, and Albendazole Treatment Failure
Humphries D, Mosites E, Otchere J, Twum WA, Woo L, Jones-Sanpei H, Harrison LM, Bungiro RD, Benham-Pyle B, Bimi L, Edoh D, Bosompem K, Wilson M, Cappello M. Epidemiology of Hookworm Infection in Kintampo North Municipality, Ghana: Patterns of Malaria Coinfection, Anemia, and Albendazole Treatment Failure. American Journal Of Tropical Medicine And Hygiene 2011, 84: 792-800. PMID: 21540391, PMCID: PMC3083749, DOI: 10.4269/ajtmh.2011.11-0003.Peer-Reviewed Original ResearchConceptsPoor nutritional statusHookworm infectionRisk factorsNutritional statusOverall egg reduction rateSerum immunoglobulin G (IgG) reactivitiesCross-sectional pilot studyEgg reduction rateImmunoglobulin G reactivityKintampo North MunicipalityAlbendazole therapyKintampo NorthMalaria coinfectionTreatment failureOverall prevalenceHigh prevalenceRepeat examinationEgg excretionSecretory antigensInfectionPilot studyCoinfectionSignificant reductionTherapyHigh rate
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
Acute Pyelonephritis Caused by Aerococcus urinae in a 12-Year-Old Boy
Murray TS, Muldrew KL, Finkelstein R, Hampton L, Edberg SC, Cappello M. Acute Pyelonephritis Caused by Aerococcus urinae in a 12-Year-Old Boy. The Pediatric Infectious Disease Journal 2008, 27: 760-762. PMID: 18574434, DOI: 10.1097/inf.0b013e318170af46.Peer-Reviewed Case Reports and Technical NotesMucosal antibody responses in experimental hookworm infection
BUNGIRO RD, SUN T, HARRISON LM, SHOEMAKER CB, CAPPELLO M. Mucosal antibody responses in experimental hookworm infection. Parasite Immunology 2008, 30: 293-303. PMID: 18312503, DOI: 10.1111/j.1365-3024.2008.01023.x.Peer-Reviewed Original ResearchConceptsMucosal IgA responsesSystemic immune responsesIgA responsesImmune responseHookworm infectionInfected hamstersRobust systemic immune responseAncylostoma ceylanicum infectionExperimental hookworm infectionFecal IgA responsesParasite-specific IgAMucosal immune responsesMucosal antibody responsesIntestinal worm burdenExcretory-secretory productsMucosal antibodiesProtective immunityChallenge infectionSerum IgGAntibody responsePrimary infectionSecretory IgAHamster modelIntestinal mucosaWorm burden
2007
Short report: an agar plate method for culturing hookworm larvae: analysis of growth kinetics and infectivity compared with standard coproculture techniques.
Reiss D, Harrison LM, Bungiro R, Cappello M. Short report: an agar plate method for culturing hookworm larvae: analysis of growth kinetics and infectivity compared with standard coproculture techniques. American Journal Of Tropical Medicine And Hygiene 2007, 77: 1087-90. PMID: 18165527, DOI: 10.4269/ajtmh.2007.77.1087.Peer-Reviewed Original Research
2006
Molecular cloning and characterization of a C-type lectin from Ancylostoma ceylanicum: Evidence for a role in hookworm reproductive physiology
Brown AC, Harrison LM, Kapulkin W, Jones BF, Sinha A, Savage A, Villalon N, Cappello M. Molecular cloning and characterization of a C-type lectin from Ancylostoma ceylanicum: Evidence for a role in hookworm reproductive physiology. Molecular And Biochemical Parasitology 2006, 151: 141-147. PMID: 17129620, PMCID: PMC1831819, DOI: 10.1016/j.molbiopara.2006.10.017.Peer-Reviewed Original ResearchConceptsC-type lectinRecombinant proteinsAmino acid mature proteinDrosophila S2 cellsPutative C-type lectinReproductive physiologySecretory signal sequenceEssential cell functionsSoluble protein extractsEgg cell membraneS2 cellsMature proteinCDNA correspondingProtein familyCDNA correspondsSignal sequenceMolecular cloningSperm proteinsRelated proteinsReverse transcription-PCRProtein extractsCell membraneProteinTranscription-PCRCell functionA purified Bacillus thuringiensis crystal protein with therapeutic activity against the hookworm parasite Ancylostoma ceylanicum
Cappello M, Bungiro RD, Harrison LM, Bischof LJ, Griffitts JS, Barrows BD, Aroian RV. A purified Bacillus thuringiensis crystal protein with therapeutic activity against the hookworm parasite Ancylostoma ceylanicum. Proceedings Of The National Academy Of Sciences Of The United States Of America 2006, 103: 15154-15159. PMID: 17005719, PMCID: PMC1622792, DOI: 10.1073/pnas.0607002103.Peer-Reviewed Original ResearchConceptsCry proteinsCrystal proteinsSoil bacterium Bacillus thuringiensisBacterium Bacillus thuringiensisBacillus thuringiensis crystal proteinsBt Cry proteinsVivo anthelminthic activityFree-living nematodesA. ceylanicumLarval development assaysAdult A. ceylanicumGastrointestinal nematodesBacillus thuringiensisParasitic nematodesNematode parasitesVeterinary useCry5BAncylostoma ceylanicumNematodesDevelopment assaysEgg excretionAdult female wormsHuman diseasesWorm burdenPermissive hostDietary Iron Content Mediates Hookworm Pathogenesis In Vivo
Held MR, Bungiro RD, Harrison LM, Hamza I, Cappello M. Dietary Iron Content Mediates Hookworm Pathogenesis In Vivo. Infection And Immunity 2006, 74: 289-295. PMID: 16368983, PMCID: PMC1346670, DOI: 10.1128/iai.74.1.289-295.2006.Peer-Reviewed Original ResearchConceptsDay 20 postinfectionGrowth delayIron-restricted dietHigh-iron dietIntestinal worm burdenDietary iron restrictionIron deficiency anemiaBlood hemoglobin levelsDietary iron contentGreater weight lossSignificant growth delayHemoglobin levelsDeficiency anemiaHookworm infectionDiet groupHamster modelSevere diseaseStandard dietUninfected controlsHemoglobin concentrationUninfected animalsWorm burdenDay 10Infected animalsHookworm disease
2004
Molecular Characterization of Ancylostoma ceylanicum Kunitz-Type Serine Protease Inhibitor: Evidence for a Role in Hookworm-Associated Growth Delay
Chu D, Bungiro RD, Ibanez M, Harrison LM, Campodonico E, Jones BF, Mieszczanek J, Kuzmic P, Cappello M. Molecular Characterization of Ancylostoma ceylanicum Kunitz-Type Serine Protease Inhibitor: Evidence for a Role in Hookworm-Associated Growth Delay. Infection And Immunity 2004, 72: 2214-2221. PMID: 15039345, PMCID: PMC375216, DOI: 10.1128/iai.72.4.2214-2221.2004.Peer-Reviewed Original ResearchConceptsGrowth delayAdult hookwormsIron deficiency anemiaPolyclonal immunoglobulin GDeficiency anemiaHookworm infectionReverse transcription-PCRKunitz-type serine protease inhibitorImmunohistochemistry studiesBroad-spectrum inhibitorPartial protectionMajor causeImmunoglobulin GSerine protease inhibitorIntestinal proteasesThird-stage larvaeTranscription-PCRProtease inhibitorsAnemiaHookwormVivo roleMalnutritionInhibitorsInfected hostPancreatic elastase
2003
Oral Transfer of Adult Ancylostoma ceylanicum Hookworms into Permissive and Nonpermissive Host Species
Bungiro RD, Anderson BR, Cappello M. Oral Transfer of Adult Ancylostoma ceylanicum Hookworms into Permissive and Nonpermissive Host Species. Infection And Immunity 2003, 71: 1880-1886. PMID: 12654804, PMCID: PMC152085, DOI: 10.1128/iai.71.4.1880-1886.2003.Peer-Reviewed Original ResearchConceptsBALB/c miceHigh-dose groupHumoral immune responseCD-1 miceLong-term survivalRecovery of parasitesExcretory-secretory productsHemoglobin levelsPrechallenge levelsC57BL/6 miceHookworm infectionC miceWeanling hamstersOral infectionImmune responseMurine modelHookworm larvaeSyrian hamstersMouse strainsTypical infectionsInfectionPrior exposureMiceAdult wormsOral transfer
2001
Mitigation of Hookworm Disease by Immunization with Soluble Extracts of Ancylostoma ceylanicum
Bungiro R, Greene J, Kruglov E, Cappello M. Mitigation of Hookworm Disease by Immunization with Soluble Extracts of Ancylostoma ceylanicum. The Journal Of Infectious Diseases 2001, 183: 1380-1387. PMID: 11294670, DOI: 10.1086/319867.Peer-Reviewed Original ResearchConceptsHookworm infectionMajor clinical sequelaeHuman vaccine developmentCause of anemiaSyrian golden hamstersAdult worm burdenGlobal control effortsClinical sequelaeActive vaccinationPrimary infectionWorm burdenAdult hookwormsGrowth delayVaccine developmentHookworm diseaseGolden hamstersPooled seraAncylostoma ceylanicumPartial protectionAnemiaWeight lossAbsence of reductionInfectionAdult parasitesHamsters