Humanized Mice as a Tool to Monitor HIV Brain Reservoirs and Effects of Substance Abuse

人源化小鼠作为监测艾滋病毒脑库和药物滥用影响的工具

基本信息

批准号：
9145166
负责人：
Santhi Gorantla
金额：
$ 18.62万
依托单位：
UNIVERSITY OF NEBRASKA MEDICAL CENTER
依托单位国家：
美国
项目类别：
财政年份：
2015
资助国家：
美国
起止时间：
2015-09-30 至 2018-07-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/9145166
关键词：
Affect Aging Animal Model Animals Anti-Retroviral Agents Astrocytes Autopsy Blood Blood - brain barrier anatomy Blood Cells Bone Marrow Brain Brain Injuries Cations Cell Communication Cells Central Nervous System Infections Chimera organism Chronic DNA Development Foundations Funding Goals HIV HIV-1 Hematopoietic Stem Cell Transplantation Hematopoietic stem cells Human Immune Immunity Infection Interleukins Investigation Laboratories Life Liver Dysfunction Locales Lymphocyte Lymphoid Lymphoid Tissue Malabsorption Syndromes Mental Depression Microglia Modeling Monitor Mouse Strains Mus Nature Neuraxis Neurocognitive Deficit Neuroglia Neurons Neuropathogenesis Penetrance Peripheral Pharmaceutical Preparations Phase Prevention Research Resources Rest Rodent Model Role Substance abuse problem Substance of Abuse Testing Therapeutic Tissues Transgenic Organisms Viral Viral reservoir Virus Virus Diseases antiretroviral therapy brain cell brain tissue cell type clinically relevant cytokine efficacy testing exosome humanized mouse improved in vivo macrophage man mouse model nerve stem cell nervous system disorder nonhuman primate novel prevent public health relevance tool viral DNA viral RNA virus host interaction

项目摘要

DESCRIPTION: Combination antiretroviral therapy (cART), no matter how effective, cannot eliminate viral infection from its lymphoid and brain reservoirs. The blood-brain-barrier presents a substantive challenge as drug penetrance is often impeded. Moreover, the locale and extent of the viral brain reservoir has yet to be defined. This proposal seeks funds to establish a humanized mouse model to monitor formation of HIV reservoirs in hemato-lymphoid and CNS compartments, and in immune and non-immune cells (such as astrocytes). The focused use of mice carrying human blood and glia in the brain makes applicability to humans problematic. In turn, we are developing a resource that will generate improved animal models to study human glial cells interaction with peripheral immunity during HIV infection. Double humanized mice will be validated as a tool to study effects of substances of abuse on HIV CNS reservoir formation and eradication. Our goals to improve existing humanized mice models are as follows: R21 phase - 1) engraft human astrocytes and confirm their role in CNS HIV reservoir in vivo; and 2) enhance the development and function of human innate immune cells by transgenic expression of human IL-34 and assess cytokine effects on HIV-1 reservoir formation. R33 phase - 1) explore the effects of substances of abuse on formation of CNS reservoir and clearance by new antiretroviral approaches.

描述：抗逆转录病毒疗法（CART）的组合，无论多么有效，都无法从其淋巴样和脑部储层中消除病毒感染。血脑屏障造成了实质性的挑战，因为通常会阻碍药物渗透。此外，尚未定义病毒脑储层的位置和范围。该提案寻求资金建立人源化的小鼠模型，以监测血液淋巴和中枢神经系统室以及免疫和非免疫细胞（例如星形胶质细胞）中的HIV储量的形成。在大脑中携带人类血液和神经胶质的小鼠的重点使用使人类适用于有问题的人。反过来，我们正在开发一种资源，该资源将产生改进的动物模型，以研究HIV感染期间与周围免疫学相互作用的人神经胶质细胞的相互作用。双人源化小鼠将被证实为研究滥用物质对HIV CNS储层形成和消除的工具。我们改善现有的人源性小鼠模型的目标如下：R21期-1）植入人类星形胶质细胞并确认其在体内中枢神经系统HIV储藏中的作用； 2）通过人IL-34的转基因表达和评估细胞因子对HIV-1储量形成的影响，增强了人类先天免疫细胞的发育和功能。 R33阶段-1）探索滥用物质对通过新的抗逆转录病毒方法清除中枢神经系统储层形成的影响。