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Effects of folate deficiency on endothelial cell biology: Folate deficiency induces profound effects on global patterns of gene expression in vascular endothelial cells.

机译:叶酸缺乏对内皮细胞生物学的影响:叶酸缺乏对血管内皮细胞基因表达的整体模式产生深远影响。

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摘要

Folate deficiency is an independent risk factor for atherosclerotic cardiovascular disease. The hypothesis that folate deficiency directly affects endothelial cells has never been tested. To better understand how folate deficiency elicits changes in vascular wall homeostasis, we characterized an in vitro model of endothelial cell folate deficiency using human umbilical vein endothelial cells (HUVECs). We conducted global gene expression analysis to address the effects of folate deficiency on endothelial cell gene expression. Severe folate deficiency, induced the classic response of reduced cell growth induced, by an intra S-phase cell cycle arrest, and increased cell volume. Primary endothelial cells were found to be sensitive to physiological levels of folate at a concentration of 40 nM (within the normal range in humans) and respond by exhibiting an inflammatory response as evidenced by the changes in expression of IL-8, CXCL1, ICAM1, COX-1 and COX-2. These changes are characteristic of the activated endothelium.
机译:叶酸缺乏是动脉粥样硬化性心血管疾病的独立危险因素。叶酸缺乏直接影响内皮细胞的假说从未得到证实。为了更好地了解叶酸缺乏如何引起血管壁动态平衡的变化,我们使用人脐静脉内皮细胞(HUVEC)表征了内皮细胞叶酸缺乏的体外模型。我们进行了全球基因表达分析,以解决叶酸缺乏对内皮细胞基因表达的影响。严重的叶酸缺乏引起经典的反应,即细胞内S期细胞周期停滞和细胞体积增加导致细胞生长减少。发现原代内皮细胞对浓度为40 nM(在人类正常范围内)的叶酸生理水平敏感,并通过表现出炎症反应来响应,IL-8,CXCL1,ICAM1, COX-1和COX-2。这些变化是活化的内皮的特征。

著录项

  • 作者

    Khorana, Radhika.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Biology Cell.
  • 学位 M.Sc.
  • 年度 2006
  • 页码 135 p.
  • 总页数 135
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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