2021
Evolutionary Insights into the Microneme-Secreted, Chitinase-Containing High-Molecular-Weight Protein Complexes Involved in Plasmodium Invasion of the Mosquito Midgut
Kaur H, Pacheco MA, Garber L, Escalante AA, Vinetz JM. Evolutionary Insights into the Microneme-Secreted, Chitinase-Containing High-Molecular-Weight Protein Complexes Involved in Plasmodium Invasion of the Mosquito Midgut. Infection And Immunity 2021, 90: e00314-21. PMID: 34606368, PMCID: PMC8788677, DOI: 10.1128/iai.00314-21.Peer-Reviewed Original ResearchConceptsPeritrophic matrixMosquito midgutNew genomic insightsWeight protein complexesHigh-resolution structural modelingDomain-related proteinEvolutionary insightsInvasion machineryGenomic insightsMicronemal proteinsProtein complexesThree-dimensional structureMosquito interactionsGenomic dataPlasmodium invasionProteolytic milieuMidgut epitheliumWeight complexesAdhesive proteinsOokinetesGeneral mechanismProteinChitinasesMidgutChitinase
2018
Continuous Supply of Plasmodium vivax Sporozoites from Colonized Anopheles darlingi in the Peruvian Amazon
Moreno M, Tong-Rios C, Orjuela-Sanchez P, Carrasco-Escobar G, Campo B, Gamboa D, Winzeler EA, Vinetz JM. Continuous Supply of Plasmodium vivax Sporozoites from Colonized Anopheles darlingi in the Peruvian Amazon. ACS Infectious Diseases 2018, 4: 541-548. PMID: 29465219, PMCID: PMC5902790, DOI: 10.1021/acsinfecdis.7b00195.Peer-Reviewed Original ResearchConceptsPlasmodium vivax sporozoitesDonor seraPlasmodium vivax liver stagesStandard membrane feeding assaysMalaria-endemic settingsMembrane feeding assaysSporozoite productionInfectious blood mealInfected subjectsNaïve serumBlood-fed mosquitoesLiver stagesDonor bloodBlood samplesVaccine developmentMosquito midgutSerumBlood mealBloodMosquito survivalSporozoitesMosquitoesAnophelesAnticoagulantsInfection
2006
314 EXPERIMENTAL INFECTION OF ANOPHELES DARLINGI MOSQUITOES BY PLASMODIUM VIVAX FROM NATURALLY INFECTED PATIENTS IN THE PERUVIAN AMAZON.
Bharti A, Chuquiyauri R, Segura E, Lopez V, Stancil J, Llanos A, Vinetz J. 314 EXPERIMENTAL INFECTION OF ANOPHELES DARLINGI MOSQUITOES BY PLASMODIUM VIVAX FROM NATURALLY INFECTED PATIENTS IN THE PERUVIAN AMAZON. Journal Of Investigative Medicine 2006, 54: s134. DOI: 10.2310/6650.2005.x0004.313.Peer-Reviewed Original ResearchP. vivaxPlasmodium vivaxP. vivax infectionIncidence of malariaLife-threatening diseaseTransmission of infectionOocyst loadMembrane feeding techniqueSymptomatic patientsArtificial membrane feeding techniqueVivax malariaVivax infectionInterventional methodsPatientsInfected mosquitoesExperimental infectionDarlingi mosquitoesMosquito midgutVivaxAlternative interventionsInfectionMicroscopic examinationCurrent control measuresInfected midgutsMalaria
2001
Plasmodium ookinete-secreted chitinase and parasite penetration of the mosquito peritrophic matrix
Langer R, Vinetz J. Plasmodium ookinete-secreted chitinase and parasite penetration of the mosquito peritrophic matrix. Trends In Parasitology 2001, 17: 269-272. PMID: 11378031, DOI: 10.1016/s1471-4922(01)01918-3.Peer-Reviewed Original ResearchConceptsMosquito midgutMalaria transmission-blocking strategiesParasite-mosquito interactionsTransmission-blocking strategiesTransmission-blocking drugsGlobal malaria controlPeritrophic matrixMalaria transmissionTransgenic mosquitoesMalaria controlCandidate targetsChitinasesMidgutChitinaseCrucial roleVaccineKnockout of the Rodent Malaria Parasite Chitinase PbCHT1 Reduces Infectivity to Mosquitoes
Dessens J, Mendoza J, Claudianos C, Vinetz J, Khater E, Hassard S, Ranawaka G, Sinden R. Knockout of the Rodent Malaria Parasite Chitinase PbCHT1 Reduces Infectivity to Mosquitoes. Infection And Immunity 2001, 69: 4041-4047. PMID: 11349074, PMCID: PMC98467, DOI: 10.1128/iai.69.6.4041-4047.2001.Peer-Reviewed Original ResearchConceptsPeritrophic matrixChitinase geneChitinase activityHuman malaria parasite Plasmodium falciparumMalaria parasite Plasmodium falciparumPlasmodium-mosquito interactionsAvian malaria parasite Plasmodium gallinaceumAvian malaria transmissionParasite Plasmodium falciparumMalaria parasite Plasmodium gallinaceumChitin-containing structuresNull mutantsRodent malaria parasiteInfected blood mealMalaria ookinetesTransmission-blocking drugsAnopheles stephensi mosquitoesMidgut invasionStructural orthologsMosquito midgutOokinete invasionPM disruptionMidgut epitheliumTargeted disruptionMalaria transmissionDisruption of Plasmodium falciparumChitinase Markedly Impairs Parasite Invasion of Mosquito Midgut
Tsai Y, Hayward R, Langer R, Fidock D, Vinetz J. Disruption of Plasmodium falciparumChitinase Markedly Impairs Parasite Invasion of Mosquito Midgut. Infection And Immunity 2001, 69: 4048-4054. PMID: 11349075, PMCID: PMC98468, DOI: 10.1128/iai.69.6.4048-4054.2001.Peer-Reviewed Original ResearchConceptsMosquito midgutChitinase geneAvian malaria parasite Plasmodium gallinaceumMalaria parasite Plasmodium gallinaceumMutant ookinetesGenome databasePeritrophic matrixGene productsIntracellular traffickingBp upstreamOokinete invasionStop codonParasite invasionChitinolytic activityPfCHT1MidgutOokinetesOokinete formationGenesConfocal microscopyBlood mealApical endPlasmodium gallinaceumP. falciparumInvasion
2000
Chitinases of the Avian Malaria Parasite Plasmodium gallinaceum, a Class of Enzymes Necessary for Parasite Invasion of the Mosquito Midgut*
Vinetz J, Valenzuela J, Specht C, Aravind L, Langer R, Ribeiro J, Kaslow D. Chitinases of the Avian Malaria Parasite Plasmodium gallinaceum, a Class of Enzymes Necessary for Parasite Invasion of the Mosquito Midgut*. Journal Of Biological Chemistry 2000, 275: 10331-10341. PMID: 10744721, DOI: 10.1074/jbc.275.14.10331.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsChickensChitinasesConsensus SequenceCulicidaeDigestive SystemEpithelial CellsGene Expression Regulation, DevelopmentalGene Expression Regulation, EnzymologicHumansKineticsMalaria, AvianMolecular Sequence DataPlasmodium gallinaceumRecombinant ProteinsSequence AlignmentSequence Homology, Amino AcidConceptsAvian malaria parasite Plasmodium gallinaceumMalaria parasite Plasmodium gallinaceumChitin-containing peritrophic matrixMosquito midgutPlasmodium gallinaceumTransmission-blocking interventionsBlood mealPgCHT1Mosquito midgut invasionPlasmodium ookinetesMidgut invasionParasite invasionPotential targetPeritrophic matrixMidgut epitheliumInvasionParasitesGallinaceumOokinetesMealMicroMActivity profiles
1999
The chitinase PfCHT1 from the human malaria parasite Plasmodium falciparum lacks proenzyme and chitin-binding domains and displays unique substrate preferences
Vinetz J, Dave S, Specht C, Brameld K, Xu B, Hayward R, Fidock D. The chitinase PfCHT1 from the human malaria parasite Plasmodium falciparum lacks proenzyme and chitin-binding domains and displays unique substrate preferences. Proceedings Of The National Academy Of Sciences Of The United States Of America 1999, 96: 14061-14066. PMID: 10570198, PMCID: PMC24190, DOI: 10.1073/pnas.96.24.14061.Peer-Reviewed Original ResearchMeSH KeywordsAcetylglucosamineAmino Acid SequenceAnimalsBase SequenceBinding SitesChitinChitinasesEnzyme ActivationEnzyme InhibitorsEnzyme PrecursorsGene ExpressionGenes, ProtozoanHumansHydrogen-Ion ConcentrationMalariaModels, MolecularMolecular Sequence DataPlasmodium falciparumProtein ConformationProtozoan ProteinsSequence Homology, Amino AcidSubstrate SpecificityTrisaccharidesConceptsP. gallinaceumHuman malaria transmissionMosquito midgut epitheliumChitinase geneHuman malaria parasite Plasmodium falciparumChitin-binding domainMalaria parasite Plasmodium falciparumPfCHT1PgCHT1Malaria transmissionParasite Plasmodium falciparumPeritrophic matrixSubstrate preferenceP. falciparum genome databasePlasmodium falciparumMosquito midgutOocyst developmentParasite invasionBlood mealActive recombinant enzymeP. falciparum genesUnique substrate preferenceDifferential sensitivityGenome databaseHexameric oligomers