AAV-Delivered Broadly Neutralizing Antibodies for HIV Suppression
AAV-Delivered Broadly Neutralizing Antibodies for HIV Suppression
批准号:
10221805
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
2015 年联合国艾滋病规划署报告估计,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
个人。 然而,只有 1700 万感染者能够获得抗逆转录病毒疗法。 此外,ART 是
需要每日给药的终生治疗,并且与一系列不需要的副作用相关
影响。 广泛中和抗体 (bNAb) 或许能够补充或替代 ART。 几个
此类抗体已在人体临床试验中显示出前景,单剂量即可减少
HIV-1 感染者的病毒血症。 然而,在治疗期间,病毒会迅速反弹,因为
bNAb 浓度降低并选择耐药变体。 腺相关病毒 (AAV)
载体可以在能够限制病毒进化的浓度下表达多年的 bNAb,并且
维持病毒抑制。 然而,我们和其他团体已经展示了反毒品的出现
表达的 bNAb 抗体 (ADA) 可以限制其表达。 在这份 K99/R00 提案中,我将
解决与在功能性治疗中使用 AAV 传递的 bNAb 相关的三个关键问题。 1)
哪些 bNAb 具有与抑制抗体一致的生物物理和中和特性
已确诊感染? 2) 载体和 AAV 衣壳优化可以增加 bNAb 表达并提供帮助
限制主机 ADA 响应? 3) AAV 递送的 bNAb 能否抑制已确诊的 SHIV 感染
恒河猴,消除了对 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
其他临床情况。 我对 AAV 和 HIV-1 系统的研究以及我对非人类的开发
作为 Ruth L. Kirschstein 研究员的灵长类项目为我提供了必要的培训
完成这些目标。 TSRI 为协作科学提供了卓越的研究环境,
尤其是在艾滋病毒领域。 此外,我将参加 TSRI 和冷泉港提供的课程
将提供成为独立调查员的进一步培训。 我的导师 Farzan 博士
与我的科学咨询委员会由博士组成。 罗恩·德罗西尔斯、苏珊娜·瓦伦特和惠云
Choe 致力于为我提供出色的培训,帮助我制定研究目标,并
提高我未来 R01 提交的资助写作技巧。 我在培训期间获得的技能
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具体目标。
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.
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会议论文
AAV-delivered HIV inhibitors for SHIV therapy
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批准号:10683342
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项目类别:
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资助金额:$80.95万
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财政年份:2022
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负责人:Matthew Ryan Gardner
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依托单位:
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财政年份:2022
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批准号:10403278
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项目类别:
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资助金额:$90.67万
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负责人:Matthew Ryan Gardner
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依托单位:
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批准号:10531917
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项目类别:
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资助金额:$91.0万
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负责人:Matthew Ryan Gardner
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依托单位:
AAV-Delivered Broadly Neutralizing Antibodies for HIV Suppression
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批准号:10229623
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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