BLR&D Research Career Scientist Renewal Award Application
BLR
基本信息
- 批准号:10515311
- 负责人:
- 金额:--
- 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
- 起止时间:2019-10-01 至 2024-09-30
- 项目状态:已结题
- 来源:
- 关键词:4-aminoquinolineAdultAntimalarialsAntiparasitic AgentsAwardBabesia microtiBabesiosisBiguanidesBiochemistryBiologicalBiological AvailabilityBiologyBlindnessBloodBorrelia microtiCategoriesChemical ExposureChemicalsChemotherapy-Oncologic ProcedureChildChloroquineCollaborationsComplexDevelopmentDiseaseDrug DesignDrug toxicityEnzymesEye diseasesFetusFeverGlucosephosphate DehydrogenaseHIVHealthImmuneImmunologic Deficiency SyndromesIn VitroIndividualInfectionInjectableInvestigational TherapiesLaboratoriesLeadLegal patentLiverLyme DiseaseMalariaMalaria preventionMedicalMedical ResearchMedicineMethodsMitochondriaModernizationMolecularMulti-Drug ResistanceNeurologicNew EnglandOralParasite resistanceParasitesParasitologyPatientsPeer ReviewPersonsPharmaceutical PreparationsPharmacotherapyPlasmodium falciparumPredispositionPregnant WomenPreventionPrevention strategyProdrugsQuinolonesResearchResearch InstituteRespirationRiskScientistSoldierTimeToxoplasma gondiiToxoplasmosisTransplant RecipientsTropical DiseaseUnited StatesUnited States Department of Veterans AffairsUnited States National Institutes of HealthVascular blood supplyVeteransVulnerable PopulationsWarWomanatovaquonecareerchemical synthesischemotherapyco-infectiondesigndisabilitydrug mechanismimprovedin vivomembermenmouse modelnovelnovel therapeuticspregnantprenatalprogramsresistant strainrespiratorysynergismtick transmissionvectorvirtual
项目摘要
Dr. Riscoe’s Experimental Chemotherapy laboratory focuses on the discovery, optimization and translational
development of antiparasitic drugs, especially drugs for treatment and prevention of malaria, a severe and
potentially fatal tropical disease. Using modern methods of drug design and chemical synthesis his laboratory
has successfully created 5 novel antimalarial “chemotypes” with exemplary molecules in each category that are
orally bioavailable and curative in mouse models of infection. The Portland VA and neighboring OHSU have filed
for patent protection on all 5 chemotypes which include: 1) Dual functional acridones with blood stage activity
that interact synergistically with many standard antimalarial agents, 2) 4-Aminoquinoline derivatives
(“Pharmachins”), designed to replace chloroquine, that are rapidly active against multidrug resistant strains of
Plasmodium falciparum parasites, 3) Quinolones (i.e., ELQ-300) that block parasite mitochondrial respiration
and act vs. the blood, liver, gametocyte, and vector stages of parasite development, 4) Prodrugs of ELQ-300 for
improved oral delivery and for injectable sustained-release and long-term protection against malaria, and 5)
Biguanides with enhanced synergy in combination with anti-respiratory antimalarial drugs such as atovaquone
and ELQ-300.
It is noteworthy that ELQs (e.g., ELQ-316) are also potent against other parasites including Toxoplasma
gondii and Babesia microti with proven activity demonstrated in vitro as well as in vivo. T. gondii is a eukaryotic
intracellular parasite estimated to have infected billions of people worldwide, placing them at risk for
toxoplasmosis. Fetuses and immune-compromised persons (e.g., HIV patients, transplant patients, and
individuals undergoing cancer chemotherapy) are susceptible to severe toxoplasmosis, which can be fatal or
lead to permanent ocular or neurologic disability. Even healthy people without immunodeficiency are susceptible
to ocular disease which may cause vision loss. B. microti causes babesiosis which is transmitted by ticks. It is
endemic in the New England region of the United States where it is called, “Nantucket Fever”. Like malaria and
toxoplasmosis, babesiosis is a potentially fatal infection and new and effective drugs are urgently needed. It is
noteworthy that B. microti is a common co-infection associated with Lyme disease and is regarded as the
foremost infectious risk to the U.S. blood supply.
The Portland VA’s Experimental Chemotherapy Lab also investigates drug mechanism of action by use of
methods that are traditional to the fields of biochemistry, chemical biology and molecular parasitology. Dr.
Riscoe’s laboratory receives support from the Department of Veterans Affairs, National Institutes of Health, and
the Medicines for Malaria Venture and he maintains an active collaboration with members of the Division of
Experimental Therapeutics at the Walter Reed Army Institute for Research. He continues to serve as an invited
reviewer for the US DOD’s Peer Reviewed Medical Research Program (PRMRP) and the NIH. The long-term
objective of Dr. Riscoe’s malaria research is to develop drugs that are inexpensive, safe and effective in
prevention and treatment of the most vulnerable populations, young children and pregnant women, and
ultimately to develop a cocktail of drugs that may be used to eradicate the disease.
Riscoe 博士的实验化疗实验室专注于发现、优化和转化
开发抗寄生虫药物,特别是治疗和预防疟疾的药物,疟疾是一种严重和严重的疾病
潜在致命的热带疾病。 他的实验室使用现代药物设计和化学合成方法
已成功创建 5 种新颖的抗疟“化学型”,每个类别中的示例分子分别是
在小鼠感染模型中具有口服生物利用度和疗效。 弗吉尼亚州波特兰市和邻近的 OHSU 已提交申请
获得对所有 5 种化学型的专利保护,其中包括:1) 具有血期活性的双功能吖啶酮
与许多标准抗疟药协同作用,2) 4-氨基喹啉衍生物
(“Pharmachins”),旨在取代氯喹,对多重耐药菌株具有快速活性
恶性疟原虫寄生虫,3) 喹诺酮类药物(即 ELQ-300),可阻断寄生虫线粒体呼吸
以及寄生虫发育的血液、肝脏、配子细胞和载体阶段的作用,4) ELQ-300 的前药
改善口服给药、注射缓释和长期预防疟疾,以及 5)
双胍类药物与阿托伐醌等抗呼吸系统抗疟药物联合使用可增强协同作用
和 ELQ-300。
值得注意的是,ELQ(例如 ELQ-316)也能有效对抗其他寄生虫,包括弓形虫
弓形虫和田鼠巴贝斯虫在体外和体内均具有经过验证的活性。 刚地弓形虫是一种真核生物
据估计,细胞内寄生虫已经感染了全世界数十亿人,使他们面临感染的风险
弓形体病。 胎儿和免疫功能低下的人(例如艾滋病毒患者、移植患者和
接受癌症化疗的个体)容易感染严重的弓形虫病,这可能是致命的或致命的
导致永久性眼部或神经功能障碍。 即使没有免疫缺陷的健康人也容易受到影响
可能导致视力丧失的眼部疾病。 B. 田鼠引起巴贝斯虫病,通过蜱传播。 这是
在美国新英格兰地区流行,被称为“楠塔基特热”。 比如疟疾和
弓形体病、巴贝斯虫病是一种潜在致命的感染,迫切需要新的有效药物。 这是
值得注意的是,田鼠伯克利氏菌是一种与莱姆病相关的常见合并感染,被认为是
美国血液供应面临的首要感染风险。
波特兰弗吉尼亚州的实验化疗实验室还通过使用
生物化学、化学生物学和分子寄生虫学领域的传统方法。 博士。
里斯科的实验室得到了退伍军人事务部、国家卫生研究院和
疟疾药物事业部,他与该部门的成员保持着积极的合作
沃尔特·里德陆军研究所的实验治疗学。 他继续作为受邀者
美国国防部同行评审医学研究计划 (PRMRP) 和 NIH 的评审员。 长期来看
Riscoe 博士的疟疾研究目标是开发廉价、安全且有效的药物
预防和治疗最弱势群体、幼儿和孕妇,以及
最终开发出一种可用于根除这种疾病的药物混合物。
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)
专利数量(0)
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Michael Kevin RISCOE其他文献
Michael Kevin RISCOE的其他文献
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{{ truncateString('Michael Kevin RISCOE', 18)}}的其他基金
Development of a Sustained Release Injectable Formulation for Long-Term Delivery of ELQs
开发用于长期递送 ELQ 的缓释注射制剂
- 批准号:
10412947 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Development of a Sustained Release Injectable Formulation for Long-Term Delivery of ELQs
开发用于长期递送 ELQ 的缓释注射制剂
- 批准号:
9816269 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Optimizing ELQs for Treatment and Prevention of Malaria
优化 ELQ 以治疗和预防疟疾
- 批准号:
8776262 - 财政年份:2013
- 资助金额:
-- - 项目类别:
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