Comparative Genomics of Peroxisomal Lipid Metabolism

过氧化物酶体脂质代谢的比较基因组学

基本信息

  • 批准号:
    7931167
  • 负责人:
  • 金额:
    $ 23.23万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2009
  • 资助国家:
    美国
  • 起止时间:
    2009-09-30 至 2011-03-31
  • 项目状态:
    已结题

项目摘要

DESCRIPTION (provided by applicant): Interactions between the human genome and the environment have shaped the evolution of complex human phenotypes. Since the emergence of the genus Homo, there have been many significant changes in the interactions of humans and their ancestors with their environments. One such interaction involves dramatic increases in meat consumption prior to migrations of modern humans out of Africa. We hypothesize that humans and their ancestors have undergone selection in lipid metabolism genes in response to dietary shifts. Based on the known physiological importance of these pathways, these selective changes could strongly influence complex human phenotypes involving the nervous and cardiovascular systems and the liver. In this proposal, we will take comparative and functional genomics approaches to identify specific lipid metabolism genes and pathways undergoing selection in the human lineage. Here, we will compare and contrast quantitative differences in peroxisomal lipid metabolism in humans and closely related primate species that are primarily fruiteating, leaf-eating, grass-eating, or omnivorous. We will examine cellular differences in these metabolic pathways using fibroblasts, an established model system for peroxisomal lipid metabolism. In Specific Aim 1, we will take biochemical approaches to quantify the activities of these metabolic pathways in each species. We will focus on the catabolism of fatty acids abundant in meat-eating diets which we predict will show species-specific activities dependent upon diet. In Specific Aim 2, we will take cellular biology approaches to evaluate peroxisomal assembly and integrity in each species and correlate with their rates of lipid catabolism. In Specific Aim 3, we will take genomics approaches to evaluate the expression of peroxisomal genes and transcriptional responses to treatment with dietary lipids. In Specific Aim 4, we will take statistical genetics approaches to conduct detailed tests for selection in peroxisomal lipid metabolic genes in human and other primates. We will screen for selective sweeps that occurred prior to the migration of humans out of Africa that could mark the fixation of advantageous alleles in humans. Overall, we will conduct a detailed analysis of selective changes in human peroxisomal lipid metabolism using a variety of newly developed functional and comparative genomic approaches that could be applied towards other studies examining metabolic pathways relevant to human health and disease.
描述(由申请人提供):人类基因组与环境之间的相互作用塑造了复杂人类表型的进化。自人属出现以来,人类及其祖先与环境的相互作用发生了许多重大变化。其中一种相互作用涉及现代人类离开非洲之前肉类消费的急剧增加。我们假设人类和他们的祖先经历了脂质代谢基因的选择,以响应饮食的变化。基于已知这些通路的生理重要性,这些选择性改变可能强烈影响复杂的人类表型,包括神经、心血管系统和肝脏。

项目成果

期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
A founder mutation in the PEX6 gene is responsible for increased incidence of Zellweger syndrome in a French Canadian population.
  • DOI:
    10.1186/1471-2350-13-72
  • 发表时间:
    2012-08-15
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Levesque S;Morin C;Guay SP;Villeneuve J;Marquis P;Yik WY;Jiralerspong S;Bouchard L;Steinberg S;Hacia JG;Dewar K;Braverman NE
  • 通讯作者:
    Braverman NE
The gene expression profiles of induced pluripotent stem cells from individuals with childhood cerebral adrenoleukodystrophy are consistent with proposed mechanisms of pathogenesis.
  • DOI:
    10.1186/scrt130
  • 发表时间:
    2012-10-04
  • 期刊:
  • 影响因子:
    7.5
  • 作者:
    Wang XM;Yik WY;Zhang P;Lu W;Dranchak PK;Shibata D;Steinberg SJ;Hacia JG
  • 通讯作者:
    Hacia JG
Derivation of induced pluripotent stem cells from orangutan skin fibroblasts.
  • DOI:
    10.1186/s13104-015-1567-0
  • 发表时间:
    2015-10-16
  • 期刊:
  • 影响因子:
    1.8
  • 作者:
    Ramaswamy K;Yik WY;Wang XM;Oliphant EN;Lu W;Shibata D;Ryder OA;Hacia JG
  • 通讯作者:
    Hacia JG
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JOSEPH G HACIA其他文献

JOSEPH G HACIA的其他文献

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{{ truncateString('JOSEPH G HACIA', 18)}}的其他基金

Development of Targeted Therapies for Peroxisome Biogenesis Disorders: Current and future prospects
过氧化物酶体生物合成障碍靶向治疗的发展:当前和未来前景
  • 批准号:
    9261342
  • 财政年份:
    2016
  • 资助金额:
    $ 23.23万
  • 项目类别:
Development of Targeted Therapies for Peroxisome Biogenesis Disorders: Current and future prospects
过氧化物酶体生物合成障碍靶向治疗的发展:当前和未来前景
  • 批准号:
    9447324
  • 财政年份:
    2016
  • 资助金额:
    $ 23.23万
  • 项目类别:
Development of Targeted Therapies for Peroxisome Biogenesis Disorders: Current and future prospects
过氧化物酶体生物合成障碍靶向治疗的发展:当前和未来前景
  • 批准号:
    9440507
  • 财政年份:
    2016
  • 资助金额:
    $ 23.23万
  • 项目类别:
COMPARATIVE GENOMICS OF PEROXISOMAL LIPID METABOLISM
过氧化物酶体脂质代谢的比较基因组学
  • 批准号:
    8171359
  • 财政年份:
    2010
  • 资助金额:
    $ 23.23万
  • 项目类别:
COMPARATIVE GENOMICS OF PEROXISOMAL LIPID METABOLISM
过氧化物酶体脂质代谢的比较基因组学
  • 批准号:
    7723631
  • 财政年份:
    2008
  • 资助金额:
    $ 23.23万
  • 项目类别:
Comparative Genomics of Peroxisomal Lipid Metabolism
过氧化物酶体脂质代谢的比较基因组学
  • 批准号:
    7392358
  • 财政年份:
    2005
  • 资助金额:
    $ 23.23万
  • 项目类别:
Mutational Analysis of Peroxisome Biogenesis Disorders
过氧化物酶体生物发生障碍的突变分析
  • 批准号:
    6953829
  • 财政年份:
    2005
  • 资助金额:
    $ 23.23万
  • 项目类别:
Comparative Genomics of Peroxisomal Lipid Metabolism
过氧化物酶体脂质代谢的比较基因组学
  • 批准号:
    7217534
  • 财政年份:
    2005
  • 资助金额:
    $ 23.23万
  • 项目类别:
Mutational Analysis of Peroxisome Biogenesis Disorders
过氧化物酶体生物发生障碍的突变分析
  • 批准号:
    7140209
  • 财政年份:
    2005
  • 资助金额:
    $ 23.23万
  • 项目类别:
Comparative Genomics of Peroxisomal Lipid Metabolism
过氧化物酶体脂质代谢的比较基因组学
  • 批准号:
    6920952
  • 财政年份:
    2005
  • 资助金额:
    $ 23.23万
  • 项目类别:

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