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A role for Nrf2 in UVA-mediated heme oxygenase induction and protection from membrane damage in human skin fibroblasts

机译:Nrf2在UVA介导的血红素加氧酶诱导和防止人皮肤成纤维细胞膜损伤中的作用

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摘要

Our previous study has shown that Ultraviolet-A (UVA) irradiation induces heme oxygenase 1 (HO-1) expression in cultured human primary skin fibroblasts FEK4. In the present study, we demonstrate a coordinated induction of HO-1 and NF-E2-related factor 2 (Nrf2) following UVA irradiation or hemin treatment. The induction of HO-1 by either UVA irradiation or hemin treatment was largely abolished by down-regulation of Nrf2 with its targeted short interfering RNA (siNrf2). The study further reveals that knockdown of Nrf2 protein increased UVA-induced cell death measured by MTS assay. These findings together indicate that Nrf2-mediated induction of HO-1 expression may provide a cytoprotection for human skin cells from oxidative damage.
机译:我们以前的研究表明,紫外线-A(UVA)辐射可在培养的人原代皮肤成纤维细胞FEK4中诱导血红素加氧酶1(HO-1)表达。在本研究中,我们证明了在UVA照射或血红素处理后,HO-1和NF-E2相关因子2(Nrf2)的协同诱导。通过用其靶向的短干扰RNA(siNrf2)下调Nrf2,很大程度上消除了通过UVA辐射或血红素处理对HO-1的诱导。该研究进一步揭示,通过MTS分析测定,敲低Nrf2蛋白可增加UVA诱导的细胞死亡。这些发现共同表明,Nrf2介导的HO-1表达诱导可能为人类皮肤细胞提供抗氧化损伤的细胞保护作用。

著录项

  • 来源
    《Optics in health care and biomedical optics IV》|2010年|p.78450X.1-78450X.7|共7页
  • 会议地点 Beijing(CN)
  • 作者单位

    The '111 Project' Laboratory of Biomechanics Tissue Repair Engineering,Key Laboratory of Biorheological Science and Technology, Ministry of Education,College of Bioengineering, Chongqing University, Chongqing, China, 400044;

    rnThe '111 Project' Laboratory of Biomechanics Tissue Repair Engineering,Key Laboratory of Biorheological Science and Technology, Ministry of Education,College of Bioengineering, Chongqing University, Chongqing, China, 400044;

    rnThe '111 Project' Laboratory of Biomechanics Tissue Repair Engineering,Key Laboratory of Biorheological Science and Technology, Ministry of Education,College of Bioengineering, Chongqing University, Chongqing, China, 400044;

    rnThe '111 Project' Laboratory of Biomechanics Tissue Repair Engineering,Key Laboratory of Biorheological Science and Technology, Ministry of Education,College of Bioengineering, Chongqing University, Chongqing, China, 400044;

    rnDepartment of Pharmacy and Pharmacology, University of Bath, UK;

    rnThe '111 Project' Laboratory of Biomechanics Tissue Repair Engineering,Key Laboratory of Biorheological Science and Technology, Ministry of Education,College of Bioengineering, Chongqing University, Chongqing, China, 400044;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 光、激光生物医学;
  • 关键词

    UVA; Nrf2; HO-1; hemin; FEK4;

    机译:哇; N rf2;胡1; Hemin;铁K4;
  • 入库时间 2022-08-26 13:44:47

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