Measurement of ART Drug Concentrations in Brain by 19F-MRS as an Indicator of Neurotoxicity
Measurement of ART Drug Concentrations in Brain by 19F-MRS as an Indicator of Neurotoxicity
批准号:
9925549
负责人:
Scott L Letendre
金额:
$19.69万
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:
2019-09-24 至 2021-07-31
关键词:
AddressAdverse eventAgingAnimalsBiological AgingBiological AssayBiomedical ResearchBloodBlood - brain barrier anatomyBrainCD4 Positive T LymphocytesCerebrospinal FluidCerebrumCognition DisordersCommunitiesComplexDataDetectionDevelopmentDiseaseDoseEtiologyExploratory/Developmental GrantFluorineFluoxetineFluvoxamineFutureGeneral PopulationGiftsHIVHIV antiretroviralHeadHealthHumanIn VitroInflammationInjuryIntegrase InhibitorsInvestigationInvestmentsLeadMagnetic Resonance SpectroscopyMeasurementMeasuresMethodsMitochondriaMood DisordersMoodsN-acetylaspartateNational Institute of Mental HealthNational NeuroAids Tissue ConsortiumNeuraxisNeurobehavioral ManifestationsNeurocognitiveNeuronal InjuryNeuropharmacologyParticipantPerformancePermeabilityPersonsPharmaceutical PreparationsPharmacologyPrevalenceProtonsPublicationsPublishingRNARecoveryReportingResearchResearch Project GrantsRiskRisk FactorsSafetySample SizeSelective Serotonin Reuptake InhibitorSeveritiesSignal TransductionSleepSymptomsTissuesUnited States National Institutes of HealthViralWorkantiretroviral therapybrain researchbrain tissuecohortdaily functioningefavirenzemtricitabinefallsimprovedin vivoinnovationlow and middle-income countrieslymph nodesneurobehavioralneuropsychiatryneurotoxicitynew technologyprogramspublic health relevanceradioligandside effecttool
中文摘要
摘要
抗逆转录病毒疗法(ART)可以抑制HIV RNA,提高生存率,但对HIV感染的担忧是,
近年来,随着以下报告的发表,ART药物的神经毒性已经出现:a)体外证据表明,
神经元损伤和B)依法韦仑、度鲁特韦(DTG)和其他
毒品我们对ART药物在CNS中的疗效和安全性的理解的一个关键差距是药理学
这些药物在大脑中的作用。已发表的人类研究报告称,大多数ART药物的浓度
脑脊髓液(CSF)中的ART显著低于血液中的ART,但最近的动物研究报告,
脑中的药物浓度显著高于CSF数据的预期。 高抗逆转录病毒药物
脑中的浓度可能是神经毒性风险的关键决定因素。为了更好地了解影响
由于ART药物浓度对NP-AEs的影响,需要一种新的方法来测量脑中的这些浓度
活着的人类。这项R21应用提出了高度创新的研究,以开发这样一种方法,氟
磁共振波谱(19 F-MRS)。 这种方法可以测量低浓度的化合物,如
氟化药物,其落入体内19 F-MRS谱内。这可能是非常有价值的,因为许多通常
使用的ART药物如DTG和恩曲他滨(FTC)是氟化的。 该方法不需要
并且已经成功地测量了氟化选择性5-羟色胺的浓度
再摄取抑制剂拟议的研究对RFA-10 MH-1020 - 10115反应良好,并组织成
3个目的:1)建立19 F-MRS测定脑内DTG和FTC浓度的方法,2)测定脑内DTG和FTC浓度,
在CHARTER老化项目(R 01 MH 107345)的20名参与者中通过19 F-MRS进行DTG和FTC,该项目将
利用NIMH在这一群体中的投资,以及3)确定DTG和FTC之间的关系
脑组织中的浓度以及神经认知表现、情绪、睡眠和日常评估
这是由CHARTER Aging项目执行的。虽然拟议的样本量很小,
研究结果将为未来的研究项目提供初步的理论依据和数据支持。 成功
该项目将为ART神经药理学和神经毒性的研究开发一种新的、高度有效的工具
并将带来新的、更大的研究项目。 它也可能有助于开发新的抗逆转录病毒药物。 这
该方法也可用于测量除脑以外的组织中的ART药物浓度(例如,淋巴结)
因此,它的发展也可能导致对艾滋病毒持久性和根除的新研究。
英文摘要
ABSTRACT
Antiretroviral therapy (ART) can suppress HIV RNA and improve survival but concerns about the
neurotoxicity of ART drugs have arisen in recent years with the publication of reports of a) in vitro evidence of
neuronal injury and b) neuropsychiatric adverse events (NP-AEs) of efavirenz, dolutegravir (DTG), and other
drugs. A key gap in our understanding of the efficacy and safety of ART drugs in the CNS is the pharmacology
of these drugs in the brain. Published human studies have reported that concentrations of most ART drugs are
substantially lower in cerebrospinal fluid (CSF) than in blood but recent animal studies have reported that ART
drug concentrations in the brain are substantially higher than expected by on CSF data. High ART drug
concentrations in the brain could be a critical determinant of neurotoxicity risk. To better understand the influence
of ART drug concentrations on NP-AEs, a new method is needed to measure these concentrations in the brain
of living humans. This R21 application proposes highly innovative research to develop such a method, fluorine
magnetic resonance spectroscopy (19F-MRS). This method can measure low concentration compounds, like
fluorinated drugs, that fall within the 19F-MRS spectra in vivo. This could be highly valuable since many commonly
used ART drugs, such as DTG and emtricitabine (FTC), are fluorinated. This method does not require
administration of a radioligand and has successfully measured concentrations of fluorinated selective serotonin
reuptake inhibitors in the past. The proposed research responds well to RFA-MH-20-115 and is organized into
3 aims: 1) Develop the 19F-MRS method to measure concentrations of DTG and FTC in the brain, 2) Measure
DTG and FTC by 19F-MRS in 20 participants of the CHARTER Aging project (R01 MH107345), which will
leverage NIMH’s investment in this cohort, and 3) Determine the relationships between DTG and FTC
concentrations in brain tissue and assessments of neurocognitive performance, mood, sleep, and daily
functioning, which are being performed by the CHARTER Aging project. While the proposed sample size is small,
the findings will provide proof-of-principle and preliminary data in support of future projects. The successful
project will develop a new and highly impactful tool for research on ART neuropharmacology and neurotoxicity
and will lead to new, larger research projects. It may also be useful in development of new ART drugs. This
method can also be used to measure ART drugs concentrations in tissues other than brain (e.g., lymph nodes)
so its development could also lead to new research on HIV persistence and eradication.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Aging, Polypharmacy and Neurotoxicity in Adults Living with HIV
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批准号:10577736
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项目类别:
-
资助金额:$78.34万
-
财政年份:2020
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负责人:Scott L Letendre
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依托单位:
Aging, Polypharmacy and Neurotoxicity in Adults Living with HIV
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批准号:10374038
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项目类别:
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资助金额:$81.58万
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财政年份:2020
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负责人:Scott L Letendre
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依托单位:
Aging, Polypharmacy and Neurotoxicity in Adults Living with HIV
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批准号:10013739
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项目类别:
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资助金额:$82.23万
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财政年份:2020
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负责人:Scott L Letendre
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依托单位:
Measurement of ART Drug Concentrations in Brain by 19F-MRS as an Indicator of Neurotoxicity
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批准号:10023281
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项目类别:
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资助金额:$23.64万
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财政年份:2019
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依托单位:
Sustained Training in Aging and HIV Research (STAHR)
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批准号:10483564
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项目类别:
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资助金额:$21.0万
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财政年份:2016
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负责人:Scott L Letendre
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依托单位:
Sustained Training in Aging and HIV Research (STAHR)
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批准号:10615240
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资助金额:$0.0万
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财政年份:2016
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负责人:Scott L Letendre
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依托单位:
Midcareer Investigator Award in Patient-Oriented NeuroAIDS Research
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批准号:8466639
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项目类别:
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资助金额:$18.47万
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负责人:Scott L Letendre
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依托单位:
Midcareer Investigator Award in Patient-Oriented NeuroAIDS Research
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批准号:8774931
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项目类别:
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资助金额:$18.26万
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财政年份:2012
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负责人:Scott L Letendre
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依托单位:
Midcareer Investigator Award in Patient-Oriented NeuroAIDS Research
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批准号:8594262
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项目类别:
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资助金额:$18.26万
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财政年份:2012
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负责人:Scott L Letendre
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依托单位:
Midcareer Investigator Award in Patient-Oriented NeuroAIDS Research
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批准号:8968863
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项目类别:
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资助金额:$18.47万
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批准号:8052680
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资助金额:$15.3万
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依托单位:
Clinical Trial of CNS Penetrating ART to Prevent NeuroAIDS in China
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资助金额:$52.45万
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资助金额:$51.55万
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依托单位:
Clinical Trial of CNS Penetrating ART to Prevent NeuroAIDS in China
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项目类别:
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资助金额:$13.58万
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Antiretroviral-Induced Immune Recovery and the Central Nervous System
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批准号:7782783
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资助金额:$23.18万
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依托单位:
Antiretroviral-Induced Immune Recovery and the Central Nervous System
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依托单位:
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依托单位:
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