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Attenuation of cadmium-induced vascular toxicity by pro-angiogenic nanorods

机译:通过血管生成纳米棒诱发镉诱导的血管毒性的衰减

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摘要

Cadmium (Cd) is a common heavy metal that causes major environmental pollution with adverse effects on human health and well-being. Exposure to Cd is known to exhibit detrimental consequences on all the vital organ systems of the body, especially the vascular system. Certain approaches using anti-oxidants and chelating agents have been demonstrated previously to mitigate Cd-induced toxicity. However, these approaches are associated with their own limitations. In this context, there is a critical need for the development of alternative treatment strategies to address the conditions associated with Cd-poisoning. One such novel approach is the application of nanomedicine which is well-known to resolve several health complications by improving disease therapy. Recently, our group demonstrated the role of europium hydroxide nanorods (EHN) in promoting vascular growth using in vitro and in vivo assay systems. Therefore, in the present study, we have evaluated the effect of EHN on health of endothelial cells (EA.hy926) and fibroblasts (NIH 3T3) intoxicated by Cd. The results revealed that EHN significantly improved the viability of EA.hy926 and NIH 3T3 cells, reduced apoptotic cell population, increased nitric oxide (NO) production and promoted blood vasculature development in the chick embryo model, which were hampered due to Cd insult. Molecular studies demonstrated the reduced expression of tumor suppressor (p53) and elevated anti-apoptotic protein (Bcl-xL) levels along with enhanced NO production through endothelial nitric oxide synthase (eNOS) activation as the plausible mechanisms underlying protective role of EHN against Cd-induced vascular toxicity. Considering the above observations, we strongly believe that EHN could be a potential nanomedicine approach for overcoming Cd-induced toxicity by improving vascular health and functioning.
机译:镉(CD)是一种常见的重金属,导致对人类健康和福祉产生不利影响的主要环境污染。已知接触CD,表现出对身体的所有重要器官系统,尤其是血管系统的不利后果。先前已经证明了使用抗氧化剂和螯合剂的某些方法以减轻CD诱导的毒性。但是,这些方法与自己的局限性相关。在这种情况下,对替代治疗策略的发展有危急需要解决与CD中毒相关的病症。一种这样的新方法是通过改善疾病治疗来解决纳米胺的申请众所周知的众所周知,可以解决几种健康并发症。最近,我们的小组展示了氢氧化铕纳米棒(EHN)在体外和体内测定系统中促进血管生长的作用。因此,在本研究中,我们已经评估了EHN对通过Cd陶醉的内皮细胞(EA.hy926)和成纤维细胞(NIH 3T3)的健康的影响。结果表明,EHN显着改善了EA.HY926和NIH 3T3细胞的活力,降低了凋亡细胞群,增加了一氧化氮(NO)生产和促进了鸡胚胚胎模型的血液血管系统,这是由于CD侮辱而受到阻碍的。分子研究证明了肿瘤抑制剂(P53)和升高的抗凋亡蛋白(BCL-XL)水平的表达降低以及通过内皮一氧化氮合酶(ENOS)活化的增强的不产生作为EHN对CD-的可粘性机制的可象征机制诱发血管毒性。考虑到上述观察,我们强烈认为,通过改善血管健康和功能,EHN可以是克服CD诱导的毒性的潜在纳米医疗方法。

著录项

  • 来源
    《Materials science & engineering》 |2020年第10期|111108.1-111108.14|共14页
  • 作者单位

    CSIR Indian Inst Chem Technol Dept Appl Biol Uppal Rd Hyderabad 500007 Telangana India|Acad Sci & Innovat Res AcSIR Ghaziabad 201002 India;

    CSIR Indian Inst Chem Technol Dept Appl Biol Uppal Rd Hyderabad 500007 Telangana India|Acad Sci & Innovat Res AcSIR Ghaziabad 201002 India;

    Anna Univ AU KBC Res Ctr Vasc Biol Lab Chennai 600044 Tamil Nadu India|Anna Univ Dept Biotechnol Chennai Tamil Nadu India;

    CSIR Indian Inst Chem Technol Dept Appl Biol Uppal Rd Hyderabad 500007 Telangana India;

    Anna Univ AU KBC Res Ctr Vasc Biol Lab Chennai 600044 Tamil Nadu India|Anna Univ Dept Biotechnol Chennai Tamil Nadu India;

    CSIR Indian Inst Chem Technol Dept Appl Biol Uppal Rd Hyderabad 500007 Telangana India|Acad Sci & Innovat Res AcSIR Ghaziabad 201002 India;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cadmium; Vascular toxicity; Europium hydroxide nanorods; Apoptosis; Nitric oxide; Chick embryo angiogenesis;

    机译:镉;血管毒性;氢氧化铕纳米棒;细胞凋亡;一氧化氮;鸡胚血管生成;

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