Genetic analysis of mitochondrial regulators in mammalian cells

哺乳动物细胞线粒体调节因子的遗传分析

• 批准号: 7805267
• 负责人: JOHN C YOON
• 金额: $ 0.11万
• 依托单位: BRIGHAM AND WOMEN'S HOSPITAL
• 依托单位国家: 美国
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-15 至 2013-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7805267
• 关键词: Advisory Committees; Affect; Animal Model; Biochemical; Biochemical Genetics; Biogenesis; Bioinformatics; Biological; Biological Assay; Biology; Cell Line; Cells; Clinical; Complement; Congenital Abnormality; Dana-Farber Cancer Institute; Data; Degenerative Disorder; Development; Diabetes Mellitus; Disease; Doctor of Philosophy; Endocrinology; Energy Metabolism; Environment; Exercise; Gene Expression; Gene Expression Profiling; Gene Proteins; Gene Silencing; Gene Targeting; General Hospitals; Generations; Genes; Genetic; Genetic Screening; Genome; Genomic Library; Genomics; Glucose; Human; Individual; Insulin Resistance; Investigation; Laboratories; Language; Link; Mammalian Cell; Massachusetts; Membrane Potentials; Metabolic; Metabolism; Methods; Mitochondria; Molecular; Morphology; Mus; Muscle; Muscle Cells; Muscle Fibers; Mutation; Non-Insulin-Dependent Diabetes Mellitus; Nuclear; Obesity; Oxygen Consumption; Pathology; Phenotype; Physicians; Physiological; Physiology; Pilot Projects; Play; Process; Production; Protein Binding; Proteins; Public Health; RNA Interference; Regulation; Regulatory Pathway; Reporter Genes; Repression; Research; Research Personnel; Resources; Respiration; Role; Scientist; Screening procedure; Signal Pathway; Skeletal Muscle; Small Interfering RNA; Structure; Syndrome; Technical Expertise; Techniques; Testing; Training; Transcriptional Activation; Transfection; Zinc Fingers; base; career; career development; density; experience; gene repression; genetic analysis; high throughput screening; in vivo; innovation; insight; lipid metabolism; loss of function; medical schools; mitochondrial dysfunction; mitochondrial membrane; mouse genome; overexpression; professor; programs; promoter; protein expression; research study; scale up; tool

DESCRIPTION (provided by applicant): This application describes a five-year research career development program in the study of mechanisms of mitochondrial proliferation and function in mammalian cells. The research program will be carried out in the laboratory of Dr. Stephen Elledge, Professor of Genetics at Harvard Medical School. Dr. Elledge has successfully trained many academic scientists in the past. The candidate is a clinical fellow in Endocrinology, Diabetes, and Metabolism at Massachusetts General Hospital, and previously carried out Ph.D. research on glucose and lipid metabolism with Dr. Bruce Spiegelman at Dana-Farber Cancer Institute. The proposed research program will provide training in genetic approaches to analyzing regulatory pathways in mammalian cells, including gene silencing by RNA interference. The candidate will also acquire expertise in a number of genomics and bioinformatics methods. These experiences will complement the candidate's previous training in metabolism and will aid his development as an independent physician-scientist. To further enhance the training, an advisory committee of experts in mitochondrial biology, metabolism and molecular physiology, and mouse genetics will provide scientific and career advice. In a pilot study utilizing an RNAi-based genetic screen, the candidate has identified a zinc finger protein as a regulator of mitochondrial biogenesis and function in mammalian skeletal muscle cells. Preliminary evidence suggests that this protein is regulated in physiological contexts. The candidate intends to carry out further characterization of the effect of the protein on muscle cell mitochondrial number and activity. The molecular mechanism underlying the protein's effect will be investigated using a combination of biochemical, genetic, and cell biological approaches. In parallel, an expanded RNAi screen encompassing the entire genome will be carried out to obtain a global view of the regulatory pathways with particular emphasis on transcriptional networks. The Elledge lab provides a stimulating intellectual environment, broad technical expertise, and extensive scientific resources that reflect years of continuous innovation in the lab. It is an ideal setting for the candidate to develop professionally and to successfully launch his academic career as a physician-scientist. Relevance to public health (lay language): We aim to study the genes involved in mitochondrial proliferation and function. These studies may eventually help understand and treat diseases, such as type 2 diabetes, which are known to be characterized by abnormalities in mitochondrial number and function.

描述（由申请人提供）： 本申请描述了一个为期五年的研究职业发展计划，在哺乳动物细胞中的线粒体增殖和功能的机制的研究。该研究计划将在哈佛医学院遗传学教授斯蒂芬·埃利奇博士的实验室进行。Elledge博士在过去成功地培养了许多学术科学家。候选人是马萨诸塞州总医院内分泌、糖尿病和代谢的临床研究员，之前获得了博士学位。丹娜-法伯癌症研究所的布鲁斯斯皮格曼博士对葡萄糖和脂质代谢的研究。拟议的研究计划将提供遗传学方法的培训，以分析哺乳动物细胞中的调控途径，包括通过RNA干扰进行基因沉默。候选人还将获得一些基因组学和生物信息学方法的专业知识。这些经验将补充候选人以前在新陈代谢方面的培训，并将帮助他发展成为一名独立的医学科学家。为了进一步加强培训，一个由线粒体生物学、代谢和分子生理学以及小鼠遗传学专家组成的咨询委员会将提供科学和职业建议。 在利用基于RNAi的遗传筛选的试点研究中，候选人已经确定了锌指蛋白作为哺乳动物骨骼肌细胞中线粒体生物发生和功能的调节剂。初步证据表明，这种蛋白质在生理环境中受到调节。候选人打算进一步表征蛋白质对肌细胞线粒体数量和活性的影响。蛋白质的作用的分子机制将使用生物化学，遗传学和细胞生物学方法的组合进行研究。与此同时，将进行一个涵盖整个基因组的扩大RNAi筛选，以获得对调控途径的全面看法，特别强调转录网络。 Elledge实验室提供了一个刺激的智力环境，广泛的技术专长和广泛的科学资源，反映了多年来在实验室的持续创新。这是一个理想的环境，为候选人的专业发展，并成功地启动他的学术生涯作为一个医生，科学家。 与公共卫生的相关性（外行语言）：我们的目标是研究参与线粒体增殖和功能的基因。这些研究最终可能有助于理解和治疗疾病，如2型糖尿病，已知其特征是线粒体数量和功能异常。