Eukaryotic-signaling mediates two-component regulation of GBS virulence
Eukaryotic-signaling mediates two-component regulation of GBS virulence
批准号:
8663520
负责人:
Lakshmi Rajagopal
金额:
$48.24万
依托单位国家:
美国
项目类别:
财政年份:
2006
资助国家:
美国
项目状态:
已结题
起止时间:
2006-07-01 至 2014-12-31
关键词:
Amino AcidsAmniotic FluidBacterial InfectionsBindingBiochemicalBiologicalBiological AssayBlood - brain barrier anatomyCaviaCellsCerebral PalsyCesarean sectionCytolysinsDNA BindingDevelopmentDiseaseEpithelial CellsEvaluationEventFetusFoundationsGene ExpressionGene Expression RegulationGenesGeneticGenital systemGenomicsGoalsGovernmentHemolysinHumanInfectionInflammationInflammatory ResponseInjuryInvadedLeadMeasuresMediatingMembraneMental RetardationMicrobeModelingMolecularMorbidity - disease rateMusNeonatalNeonatal MortalityNeurologicNewborn InfantOrganOrganismPathogenesisPenetrationPersonsPhosphorylationPlacentaPlayPremature BirthProtein-Serine-Threonine KinasesProteomicsPublic HealthRegulationRepressionRoleSeizuresSepsisSignal TransductionStreptococcal InfectionsStreptococcus Group BSystemTestingTherapeuticThreonineToxinVirulenceVirulence FactorsWomanantimicrobial peptidebasedefined contributionearly onsetfetalhuman NAT2 proteinhuman mortalityin uteroinsightintraamniotic infectionmortalitymutantneonatal morbiditynovelpathogenperforinplacental membranepreventresponsesensor histidine kinasestillbirthtransmission process
中文摘要
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英文摘要
DESCRIPTION (provided by applicant): Morbidity and mortality of human newborns are significant public health concerns. Group B Streptococci (GBS) are a significant cause of preterm births, stillbirths and early onset sepsis in human newborns. Although GBS normally reside as commensals in the lower genital tract (LGT) of healthy women, the events that promote transmission of GBS from the LGT to the fetus are unknown. Virulence factors important for ascending in utero GBS infections have not been established. Using human placenta and a guinea pig model of intrauterine infection, the objective of this proposal is to define molecular mechanisms that activate virulence gene expression for ascending GBS infection and fetal injury.
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海外基金