AAV-Delivered Broadly Neutralizing Antibodies for HIV Suppression
AAV-Delivered Broadly Neutralizing Antibodies for HIV Suppression
批准号:
10229623
负责人:
Matthew Ryan Gardner
金额:
$24.9万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
2019
资助国家:
美国
项目状态:
已结题
起止时间:
2019-08-16 至 2022-07-31
关键词:
AddressAdvisory CommitteesAnti-Retroviral AgentsAntibodiesAntibody ResponseBinding SitesBiologicalBiological AvailabilityBiophysicsCapsidClinicalClinical TrialsDNA cassetteDependovirusDevelopmentDoseEpitopesEvolutionFoundationsFutureGene Transduction AgentGlycoproteinsGoalsGrantHIVHIV AntibodiesHIV Entry InhibitorsHIV-1HumanIndividualInfectionInfusion proceduresIntramuscularIntravenousLifeLiftingLiverLymphoid TissueMacacaMacaca mulattaMeasuresMediatingMentorsMonitorMucous MembraneMusMusclePatientsPeptidesPharmaceutical PreparationsPharmacotherapyPhasePlasmaPropertyReportingResearchResearch PersonnelResistanceResourcesSIVScienceSolubilitySystemTechnologyTestingTherapeuticTrainingTreatment EfficacyVariantViralViral Load resultViremiaVirusVirus DiseasesVirus ReplicationWorkWorld Health OrganizationWritingadeno-associated viral vectorantiretroviral therapybasecollaborative environmentexperiencehuman diseasehumanized mouseimmunogenicimmunogenicityimprovedinsightneutralizing antibodynonhuman primatenovelpreventprogramspromoterreceptorside effectsimian human immunodeficiency virusskillstransgene expressionvectorviral DNAviral RNAviral rebound
中文摘要
项目摘要
联合国艾滋病规划署2015年的报告估计,超过3500万人感染艾滋病毒。 尽管缺乏
抗逆转录病毒药物疗法(ART)是一种绝育疗法,可有效抑制感染者体内的病毒复制。
个体 然而,只有1700万受感染者能够获得抗逆转录病毒疗法。
需要每日给药并伴有一系列不良副作用的终身治疗
方面的影响. 广泛中和抗体(bNAb)可能能够补充或替代ART。
这种抗体已经在人类临床试验中显示出希望,其中单剂量可以减少
HIV-11感染者的病毒血症。 然而,病毒反弹在治疗过程中迅速发生,
bNAb浓度降低并选择抗性变体。 腺病毒相关病毒
载体可以在能够限制病毒进化的浓度下表达bNAb数年,
维持病毒抑制。然而,我们和其他团体已经出现了抗抑郁药
抗体(ADA)对表达的bNAb的作用,这可以限制它们的表达。 在此K99/R 00提案中,我将
解决了与在功能性治疗中使用AAV-CMV递送的bNAb相关的三个关键问题。第一章
哪种bNAb具有与抑制肿瘤相关的生物物理和中和特性?
已建立的感染?2)载体和AAV衣壳优化是否能增加bNAb的表达,
限制宿主ADA反应 3)AAV-bNAb能否抑制已建立的SHIV感染,
恒河猴,避免了ART的需要? 通过回答这些问题,我们将确定如何
最好使用AAV载体来治疗AAV感染,并为使用AAV的研究人员提供见解。
其他临床背景。我对AAV和HIV-11系统的研究以及我对非人免疫缺陷病毒的开发
灵长类项目作为一个露丝L。Kirschstein Fellow为我提供了必要的培训,
完成这些目标。 TSRI为合作科学提供了一个出色的研究环境,
特别是在艾滋病领域。 此外,我将参加TSRI和冷泉港提供的课程,
将提供关于成为独立调查员的进一步培训。 我的导师法赞博士沿着
我的科学顾问委员会由罗恩德罗西博士,苏珊娜瓦伦特和Hyeryun
Choe致力于为我提供良好的培训,以发展我的研究目标,
提高我的赠款写作技巧,为未来的R 01提交。 我在训练中获得的技能
阶段将作为我自己的研究计划在独立阶段的基础,
开发新的基因治疗载体并将这些载体应用于人类疾病的特定目标。
英文摘要
PROJECT SUMMARY
The 2015 UNAIDS report estimates that over 35 million people are infected with HIV. Despite the lack
of a sterilizing cure, antiretroviral drug therapies (ART) effectively suppress viral replication in infected
individuals. However, only 17 million infected individuals have access to ART. Additionally, ART is a
life-long therapy that requires daily administration and is associated with a range of unwanted side
effects. Broadly neutralizing antibodies (bNAbs) may be able to supplement or replace ART. Several
such antibodies have already shown promise in human clinical trials, where a single dose can decrease
viremia in HIV-1 infected individuals. However, viral rebound occurs rapidly during treatment as the
bNAb concentration decreases and resistant variants are selected. Adeno-associated virus (AAV)
vectors can express bNAbs for years at concentrations capable of limiting viral evolution and
maintaining viral suppression. However, we and other groups have shown the emergence of anti-drug
antibodies (ADA) to expressed bNAbs that can limit their expression. In this K99/R00 proposal, I will
address three key questions associated with the use of AAV-delivered bNAbs in a functional cure. 1)
Which bNAbs have biophysical and neutralization properties consistent with suppressing an
established infection? 2) Can vector and AAV capsid optimization increase bNAb expression and help
limit the host ADA response? 3) Can AAV-delivered bNAbs suppress an established SHIV infection in
rhesus macaques, obviating the need for ART? By answering these questions, we will determine how
best to use AAV vectors to treat an AAV infection, and provide insight for investigators using AAV in
other clinical contexts. My research with AAV and HIV-1 systems and my development of non-human
primate projects as a Ruth L. Kirschstein Fellow have provided me with the training necessary to
complete these aims. TSRI provides an outstanding research environment for collaborative science,
especially in the HIV field. Moreover, I will attend courses offered at TSRI and Cold Spring Harbor that
will provide further training on becoming an independent investigator. My mentor, Dr. Farzan, along
with my Scientific Advisory Committee consisting of Drs. Ron Desrosiers, Susana Valente and Hyeryun
Choe, are committed to providing me with an excellent training in developing my research goals and
improving my grant writing skills for future R01 submissions. The skills I acquire during the training
phase will serve as a foundation for my own research program during the independent phase, with the
specific goals of developing new gene-therapy vectors and applying these vectors to human diseases.
期刊论文(1)
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科研奖励(0)
会议论文
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依托单位:
AAV-Delivered Broadly Neutralizing Antibodies for HIV Suppression
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批准号:10221805
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项目类别:
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资助金额:$24.9万
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财政年份:2019
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负责人:Matthew Ryan Gardner
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依托单位:
An AAV Approach to Treating HIV
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批准号:9292034
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项目类别:
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资助金额:$5.92万
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财政年份:2016
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负责人:Matthew Ryan Gardner
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依托单位:
An AAV Approach to Treating HIV
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批准号:9204200
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项目类别:
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资助金额:$5.61万
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财政年份:2016
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负责人:Matthew Ryan Gardner
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依托单位:
海外基金