6533b872fe1ef96bd12d4417
RESEARCH PRODUCT
Trichomonicidal and parasite membrane damaging activity of bidesmosic saponins from Manilkara rufula.
Nícolas Luiz Feijó SilvaDenise Brentan SilvaPatrícia De Brum VieiraPatrícia De Brum VieiraAlexandre José MacedoAlexandre José MacedoNorberto Peporine LopesCamila Braz MenezesMárcia Vanusa Da SilvaTiana TascaTiana TascaJaume Bastidasubject
0301 basic medicineSexually transmitted diseaseNeutrophilsCell MembranesSaponinlcsh:Medicinemedicine.disease_causePathology and Laboratory MedicineBiochemistryMass SpectrometryAnalytical ChemistryWhite Blood CellsOxidative DamageSpectrum Analysis TechniquesAnimal CellsMedicine and Health SciencesParasite hostingElectron Microscopylcsh:Sciencechemistry.chemical_classificationSexually transmitted diseasesTrichomonas VaginalisMicroscopyMultidisciplinaryEukaryotaProtistsMatrix-Assisted Laser Desorption Ionization Mass Spectrometrymusculoskeletal systemChemistryFlagellaToxicityPhysical SciencesVaginaTrichomonasFemaleCellular TypesCellular Structures and OrganellesPathogensMalalties de transmissió sexualIntracellularmedicine.drugResearch ArticlePathogen MotilityEfecte dels medicaments sobre els microorganismesVirulence FactorsImmune CellsImmunologyBiologyResearch and Analysis Methodscomplex mixturesMicrobiologyCell Line03 medical and health sciencesParasite Groupsparasitic diseasesmedicineTrichomonas vaginalisSaponinasHumansTrophozoitesResistència als medicamentsManilkaraBlood CellsCell Membranelcsh:ROrganismsBiology and Life SciencesCell BiologyIntracellular MembranesSaponinsbiology.organism_classificationCell membranescarbohydrates (lipids)MetronidazoleMicroscopy Electron030104 developmental biologychemistryManilkara rufulaDrug resistanceEffect of drugs on microorganismsTrichomonas vaginalisParasitologyTransmission Electron Microscopylcsh:QReactive Oxygen SpeciesApicomplexaMembranes cel·lularsChromatography LiquidPRODUTOS NATURAISdescription
The infection caused by Trichomonas vaginalis is the most common but overlooked non-viral sexually transmitted disease worldwide. Treatment relies on one class of drugs, the 5-nitroimidazoles, but resistance is widespread. New drugs are urgently needed. We reported the effect of crude and purified saponin fractions of Manilkara rufula against Trichomonas vaginalis. The compound responsible for antitrichomonal activity was isolated and identified as an uncommon bidesmosic saponin, Mi-saponin C. This saponin eliminated parasite viability without toxicity against the human vaginal epithelial line (HMVII). In addition, the isolated saponin fraction improved the metronidazole effect against a metronidazole-resistant isolate and dramatically reduced the cytoadherence of T. vaginalis to human cells. Investigation of the mechanism of death showed that the saponin fraction induced the parasite death due to profound membrane damage, inducing a disturbance of intracellular content without nuclear damage. To the best of our knowledge, this is the first report of antitrichomonal activity in the bidesmosic saponins of Manilkara rufula.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-11-30 | PLoS ONE |