Mechanistic evaluation of mast cell agonists combined with TLR, NOD and STING agonists.
肥大细胞激动剂联合 TLR、NOD 和 STING 激动剂的机制评估。
基本信息
- 批准号:10657847
- 负责人:
- 金额:$ 64.52万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2023
- 资助国家:美国
- 起止时间:2023-01-03 至 2027-12-31
- 项目状态:未结题
- 来源:
- 关键词:AcidsAdjuvantAgonistAnaphylaxisAnimal ModelAntigen-Presenting CellsAntigensAreaAttenuatedAutoimmunityAutopsyBindingBiocompatible MaterialsBlood Chemical AnalysisCD8-Positive T-LymphocytesCategoriesCell DegranulationCellsCold ChainsContractsDataDelayed HypersensitivityDextransDoseElderlyEmulsionsEncapsulatedEnsureEnvironmentEvaluationFormulationGenesGeneticGenetic VariationGoalsHistamineHistologyHumanHydrophobicityIgEImmuneImmune responseImmune systemImmunityImmunizationImmunohistochemistryImmunologic StimulationIn VitroInbred Strains MiceInfectionKnockout MiceLangerhans cellLeukocytesLeukotrienesLipid ALiposomesLymphocyteMapsMeasuresMemoryMemory B-LymphocyteMethodsModelingMouse StrainsMusNucleotidesOvalbuminPathologyPattern recognition receptorPeptidesPopulationPopulation HeterogeneityPredispositionProductionProstaglandinsProteinsReceptor CellRecombinantsReportingResourcesSafetyScheduleSerumSeverity of illnessSiteSmallpoxStimulator of Interferon GenesSubunit VaccinesT cell responseTLR2 geneToll-like receptorsToxic effectTryptaseUnited States National Institutes of HealthVaccinationVaccine ResearchVaccinesVacciniaVaccinia VaccineViralWorkadaptive immune responseagedaging populationaluminum sulfateantigen testantigen-specific T cellscontrolled releasecytokinecytotoxicitydraining lymph nodehuman modelin vivoinsightmast cellmonocytemouse modelparticlepathogenprotective effectrecruitresponsesmall moleculesynergismtoolvaccine efficacyvaccine evaluationvaccine formulation
项目摘要
ABSTRACT
Subunit vaccines are safer and can more broadly be applied across the population then other vaccine
formulations such as live-attenuated. However, subunit antigens are often poorly antigenic and require
formulation with an immune stimulating adjuvant to garner protection. Additionally, some vaccines require more
than one adjuvant, necessitating combined adjuvants to stimulate a protective response. Also, a combined
adjuvant could decrease vaccination boosts and provide longer protection. One avenue to evaluate combined
adjuvants is with mast cell (MC) agonists. MCs are throughout the body and reside at many interfaces of the
host and the environment. When activated MCs recruit monocytes and leukocytes to the local area and help to
promote an adaptive response. MC agonists combined with toll-like receptor (TLR), nucleotide-binding
oligomerization domain-containing protein 2 (NOD-2), or stimulators of interferon genes (STING) agonists should
elicit not only a humoral response, but also a cellular response to create an efficacious and effective vaccine.
Herein we will evaluate combined MC agonists with TLR, NOD-2 or STING agonist to identify synergistic pairs.
Pairs will be evaluated in mice and human cells as well as with cells from collaborative cross (CC) strains. The
CC strains are a large panel of recombinant inbred mouse strains with genetic variation that can mimic the
human population as well as give insight into genetic variables that contribute to adjuvant mechanism. To ensure
that the adjuvants are co-delivered as well as offer dose sparring, storage outside the cold chain and controlled
release of adjuvant, we will formulate them into acetalated dextran (Ac-DEX) microparticles. Ac-DEX
formulations have illustrated enhanced delivery of STING, NOD-2, TLR and MC agonists in vitro and in vivo,
above that of other carriers like liposomes or PLGA particles. The best identified adjuvant combination will be
evaluated in a mouse model of a vaccinia vaccine with subunit antigen BR8. We will use pattern recognition
receptor (PRR) knock-out mice as well as cell deficient mice to elucidate aspects of the combination adjuvant's
mechanism. Additionally, we will employ genetic sequencing tools to mechanistically identify the combination
adjuvants mechanism.
摘要
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Kristy M Ainslie其他文献
Kristy M Ainslie的其他文献
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Optimizing a Universal Influenza Subunit Nano/Microparticulate Vaccine
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10540741 - 财政年份:2020
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