Novel PET Radiotracer for Muscarinic M1 Receptor
用于毒蕈碱 M1 受体的新型 PET 放射性示踪剂
基本信息
- 批准号:10001184
- 负责人:
- 金额:$ 40.44万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-09-01 至 2024-06-30
- 项目状态:已结题
- 来源:
- 关键词:AcetylcholineAcetylcholinesterase InhibitorsAgeAge-YearsAgonistAllosteric SiteAlzheimer&aposs DiseaseBindingBinding SitesBiological MarkersBiomedical ResearchBlood specimenBrainCholinergic ReceptorsClinicalClinical TrialsCognitiveCognitive deficitsCommunitiesDataDetectionDevelopmentDiseaseDoseDrug KineticsDrug TargetingEnsureEvaluationFemaleFunctional disorderGoalsHourHumanImageImaging TechniquesImpaired cognitionInvestigationKineticsKnowledgeMaintenanceMeasurementMemoryMental disordersMethodsModelingMuscarinic Acetylcholine ReceptorMuscarinic M1 ReceptorNeurotransmittersOralPatientsPharmaceutical PreparationsPharmacotherapyPhysiologyPhysostigminePlayPositron-Emission TomographyProtocols documentationReportingReproducibilityResidual stateResolutionRoleScanningSchizophreniaScopolamineSensory ReceptorsSignal TransductionSpecificityStructureSynapsesSystemTestingTherapeutic AgentsTimeTissuesTracerTranslatingValidationage effectage relatedbioimagingclinical applicationcognitive testingdonepezildrug developmentexperienceexperimental studyhealthy volunteerimaging agentin vivoin vivo imaginginsightmalenervous system disorderneuropsychiatric disordernew therapeutic targetnon-invasive imagingnonhuman primatenovelnovel therapeuticspre-clinicalradiotracerreceptorreceptor expressionreceptor functionsextargeted treatmenttreatment response
项目摘要
The acetylcholine neurotransmitter system plays an important role in the maintenance of normal physiology
such as memory function, and its dysregulation/dysfunction has been implicated in a variety of neurological and
psychiatric disease, especially in cognitive impairments associated with Alzheimer’s disease (AD) and
schizophrenia. The muscarinic acetylcholine receptors (mAChRs) are important targets for drug development in
AD and schizophrenia. Agonists at the orthosteric or allosteric sites of the M1 subtype receptor are currently
under development as drugs for the treatment of cognitive deficits. Positron Emission Tomography (PET) is a
non-invasive imaging technique that allows the in vivo investigation of neuroreceptors in the living body and in
receptor occupancy studies of emerging drugs. The availability of PET imaging agents selective for the M1
AChR will provide a non-invasive biomarker to interrogate this receptor subtype in vivo in humans and gain
insights into its function and dysfunction in diseases. Further, PET imaging with an M1 AChR selective
radiotracer can be used as an in vivo biomarker to assess target engagement and correlate target occupancy,
dose exposure and therapeutic response of emerging M1 AChR-targeting drugs in clinical trials, thus aiding the
development of novel therapeutic agents.
There have been no prior reports of validated, selective PET radiotracers for use in humans to image M1
AChR. We are the first to carry out the radiosynthesis of a selective M1 AChR radiotracer, 11C-EMO, and
evaluated it in non-human primates. Further we have performed preliminary characterization of this novel PET
radiotracer in humans and demonstrated its usefulness to image and quantify M1 AChR availability in the
brain. In this application, we propose to fully validate 11C-EMO for the imaging and quantification of M1 AChR
in humans and for detection of changes in synaptic acetylcholine concentrations. Our ultimate goal is to
provide the biomedical imaging community with an optimal, selective PET radiotracer for in vivo imaging of M1
AChR in humans. The development and successful deployment of a suitable PET imaging agent for M1 AChR
will enable, for the first time, the in vivo investigation of this receptor subtype in psychiatric and neurological
diseases, and drug occupancy studies of emerging M1 AChR targeting therapeutic agents.
乙酰胆碱神经递质系统在维持正常生理功能中起着重要作用
例如记忆功能,其失调/功能障碍已经涉及多种神经学,
精神疾病,特别是与阿尔茨海默病(AD)相关的认知障碍,
毒蕈碱型乙酰胆碱受体(mAChR)是精神分裂症药物开发的重要靶标。
目前,在M1亚型受体的正构或变构位点的激动剂是
正电子发射断层扫描(PET)是一种用于治疗认知缺陷的药物。
非侵入性成像技术,其允许活体内研究活体中的神经受体,
新兴药物的受体占有率研究。 对M1具有选择性的PET显像剂的可用性
AChR将提供一种非侵入性的生物标志物,以在人体内询问这种受体亚型,并获得
了解其在疾病中的功能和功能障碍。此外,使用M1 AChR选择性
放射性示踪剂可用作体内生物标记物以评估靶结合和关联靶占有,
剂量暴露和治疗反应的新兴M1乙酰胆碱受体-靶向药物在临床试验中,从而帮助
开发新的治疗药物。
之前没有关于经验证的、选择性PET放射性示踪剂用于人体M1成像的报告
我们是第一个进行选择性M1 AChR放射性示踪剂11 C-AChEMO的放射合成,
在非哺乳类灵长类动物中对其进行了评估,并对这种新型PET进行了初步表征
放射性示踪剂,并证明其有用的图像和量化M1乙酰胆碱受体的可用性,在人类
在这个应用中,我们建议完全验证11 C-MEMO用于M1 AChR的成像和定量
并用于检测突触乙酰胆碱浓度的变化。我们的最终目标是
为生物医学成像界提供了一种用于M1体内成像的最佳选择性PET放射性示踪剂
人类AChR:M1 AChR合适PET显像剂的开发和成功应用
这将首次使这种受体亚型在精神和神经系统中的体内研究成为可能。
疾病和新兴的M1 AChR靶向治疗剂的药物占有率研究。
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)
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YIYUN HENRY HUANG其他文献
YIYUN HENRY HUANG的其他文献
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{{ truncateString('YIYUN HENRY HUANG', 18)}}的其他基金
Sigma-1 Receptor Radioligand for Translational Research in Alzheimer's Disease
用于阿尔茨海默病转化研究的 Sigma-1 受体放射性配体
- 批准号:
10586550 - 财政年份:2023
- 资助金额:
$ 40.44万 - 项目类别:
Sigma-1 Receptor Radioligand for Translational Research in Alzheimer's Disease
用于阿尔茨海默病转化研究的 Sigma-1 受体放射性配体
- 批准号:
10670485 - 财政年份:2022
- 资助金额:
$ 40.44万 - 项目类别:
Validation of Fluorine-18 radioligand for PET imaging of synaptic density in Alzheimer's disease
验证氟 18 放射性配体对阿尔茨海默病突触密度 PET 成像的效果
- 批准号:
10319957 - 财政年份:2020
- 资助金额:
$ 40.44万 - 项目类别:
Validation of Fluorine-18 radioligand for PET imaging of synaptic density in Alzheimer's disease
验证氟 18 放射性配体对阿尔茨海默病突触密度 PET 成像的效果
- 批准号:
10078584 - 财政年份:2020
- 资助金额:
$ 40.44万 - 项目类别:
Validation of Fluorine-18 radioligand for PET imaging of synaptic density in Alzheimer's disease
验证氟 18 放射性配体对阿尔茨海默病突触密度 PET 成像的效果
- 批准号:
10541827 - 财政年份:2020
- 资助金额:
$ 40.44万 - 项目类别:
Novel PET Radiotracer for Muscarinic M1 Receptor
用于毒蕈碱 M1 受体的新型 PET 放射性示踪剂
- 批准号:
9365677 - 财政年份:2017
- 资助金额:
$ 40.44万 - 项目类别:
Novel agonist tracers for PET imaging of kappa opioid receptors
用于 kappa 阿片受体 PET 成像的新型激动剂示踪剂
- 批准号:
8899631 - 财政年份:2011
- 资助金额:
$ 40.44万 - 项目类别:
Novel agonist tracers for PET imaging of kappa opioid receptors
用于 kappa 阿片受体 PET 成像的新型激动剂示踪剂
- 批准号:
8693652 - 财政年份:2011
- 资助金额:
$ 40.44万 - 项目类别:
Novel agonist tracers for PET imaging of kappa opioid receptors
用于 kappa 阿片受体 PET 成像的新型激动剂示踪剂
- 批准号:
8190570 - 财政年份:2011
- 资助金额:
$ 40.44万 - 项目类别:
Novel agonist tracers for PET imaging of kappa opioid receptors
用于 kappa 阿片受体 PET 成像的新型激动剂示踪剂
- 批准号:
8318066 - 财政年份:2011
- 资助金额:
$ 40.44万 - 项目类别:
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