0000000000407817

AUTHOR

Giuseppe Teti

showing 3 related works from this author

Antiidiotypic DNA vaccination induces serum bactericidal activity and protection against group B meningococci

2006

No vaccine is available for preventing infections by serogroup B Neisseria meningitidis (MenB), which accounts for a major portion of meningococcal cases in developed countries, because of the poor immunogenicity of the capsular polysaccharide (CP) even after protein conjugation. We have previously induced anticapsular antibodies by immunization with a single chain variable fragment (scFv), which mimics a protective CP epitope. This surrogate antigen, however, was ineffective at inducing serum bactericidal activity, an accepted marker of protection in humans. Serum bactericidal activity was consistently achieved by immunizing mice with the scFv-encoding gene. Immunization with vectors witho…

Blood Bactericidal ActivityImmunologyImmunoglobulin Variable Regionchemical and pharmacologic phenomenaBlood Bactericidal ActivityNeisseria meningitidis Serogroup BEpitopeArticleMicrobiologyDNA vaccinationMiceAntigenserogroup B Neisseria meningitidis; single chain variable fragment; DNA vaccinationChlorocebus aethiopsVaccines DNAImmunology and AllergyAnimalsRats WistarMice Inbred BALB CbiologyImmunogenicityArticlesVirologyAntibodies BacterialRatsBacterial vaccineMeningococcal InfectionsImmunizationAnimals NewbornBacterial VaccinesCOS Cellsbiology.proteinAntibody
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Recognition of Neisseria meningitidis by the long pentraxin PTX3 and its role as an endogenous adjuvant.

2015

Long pentraxin 3 (PTX3) is a non-redundant component of the humoral arm of innate immunity. The present study was designed to investigate the interaction of PTX3 with Neisseria meningitidis. PTX3 bound acapsular meningococcus, Neisseria-derived outer membrane vesicles (OMV) and 3 selected meningococcal antigens (GNA0667, GNA1030 and GNA2091). PTX3-recognized microbial moieties are conserved structures which fulfil essential microbial functions. Ptx3-deficient mice had a lower antibody response in vaccination protocols with OMV and co-administration of PTX3 increased the antibody response, particularly in Ptx3-deficient mice. Administration of PTX3 reduced the bacterial load in infant rats c…

MaleOvalbuminGene Expressionlcsh:MedicineMeningococcal VaccinesMeningococcal vaccineMeningitis MeningococcalNeisseria meningitidismedicine.disease_causeMicrobiologyMice03 medical and health sciencesImmune systemAdjuvants ImmunologicAntigenImmunitymedicineAnimalsRats Wistarlcsh:Science030304 developmental biologyMice KnockoutAntigens Bacterial0303 health sciencesNeisseria meningitidis PTX3 vaccination protocolsMultidisciplinarybiology030306 microbiologyNeisseria meningitidisVaccinationlcsh:RPTX3Antibodies BacterialVirologyBacterial LoadImmunity InnateImmunity HumoralRats3. Good healthSerum Amyloid P-ComponentC-Reactive ProteinAnimals Newbornbiology.proteinFemalelcsh:QAntibodyBacterial outer membraneResearch ArticlePLoS ONE
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Yeast Killer Toxin-Like Candidacidal Ab6 Antibodies Elicited through the Manipulation of the Idiotypic Cascade

2014

A mouse anti-anti-anti-idiotypic (Id) IgM monoclonal antibody (mAb K20, Ab4), functionally mimicking a Wyckerhamomyces anomalus (Pichia anomala) killer toxin (KT) characterized by fungicidal activity against yeasts presenting specific cell wall receptors (KTR) mainly constituted by β-1,3-glucan, was produced from animals presenting anti-KT Abs (Ab3) following immunization with a rat IgM anti-Id KT-like mAb (mAb K10, Ab2). MAb K10 was produced by immunization with a KT-neutralizing mAb (mAb KT4, Ab1) bearing the internal image of KTR. MAb K20, likewise mAb K10, proved to be fungicidal in vitro against KT-sensitive Candida albicans cells, an activity neutralized by mAb KT4, and was capable of…

beta-GlucansPhage displayImmunogenPichia anomalaHumoral Immune ResponseAntibody Responselcsh:MedicinePichiaMiceCandida albicansVaccines DNAlcsh:ScienceImmune ResponseMultidisciplinaryVaccinationCandidiasisInfectious Disease ImmunologyKiller Factors YeastAntibodies Anti-IdiotypicVaccines SubunitResearch Articlemedicine.drug_classMolecular Sequence DataImmunologyReceptors Cell SurfaceMycologyBiologyMonoclonal antibodyMicrobiologyMicrobiologyFungal ProteinsAntigenPeptide LibrarymedicineAnimalsAmino Acid SequencePeptide libraryFungal vaccineMolecular Mimicrylcsh:RImmunityBiology and Life Sciencestossina killer mAb K20 Anti-idiotypic peptide mimic candidacidal activityMycotoxinsMolecular biologyRatsHemocyaninsHumoral Immunitybiology.proteinClinical Immunologylcsh:QFungal VaccinesPeptidesKeyhole limpet hemocyaninPLoS ONE
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