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Stem cell and tissue regeneration analysis in low-dose irradiated planarians treated with cerium oxide nanoparticles

机译:用氧化铈纳米粒子处理的低剂量照射平面图中的干细胞和组织再生分析

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摘要

Owing to the self-renewing reactive oxygen species scavenger capability of cerium oxide nano-particles (nanoceria), we tested in vivo radioprotective effects on stem cells and tissue regeneration using low-dose irradiated planarians as model system. We treated planarians with nanoceria or gum Arabic, as control, and we analyzed the expression of stem cell molecular markers and tissue regeneration capability, as well as cell death and DNA damage in non-irradiated and in low-dose irradiated animals. Our findings show that nanoceria increase the number of stem cells and tissue regenerative capability, and reduce cell death and DNA damage after low-dose irradiation, suggesting a protective role on stem cells.
机译:由于自我更新的反应性氧气种类清除氧化铈纳米颗粒(纳米核)的清除能力,我们使用低剂量照射平面图作为模型系统对干细胞和组织再生的体内辐射保护作用进行测试。我们用纳米腔或阿拉伯语的平面图,作为对照,并分析干细胞分子标记和组织再生能力的表达,以及在非照射和低剂量辐照动物中的细胞死亡和DNA损伤。我们的研究结果表明,纳米细胞增加干细胞和组织再生能力的数量,并降低低剂量照射后的细胞死亡和DNA损伤,表明对干细胞的保护作用。

著录项

  • 来源
    《Materials science & engineering》 |2020年第10期|111113.1-111113.8|共8页
  • 作者单位

    Univ Pisa Dipartimento Med Clin & Sperimentale Via Alessandro Volta 4 I-56126 Pisa Italy;

    Univ Pisa Dipartimento Med Clin & Sperimentale Via Alessandro Volta 4 I-56126 Pisa Italy;

    Univ Pisa Dipartimento Med Clin & Sperimentale Via Alessandro Volta 4 I-56126 Pisa Italy;

    Ist Italiano Tecnol Smart Biointerfaces Viale Rinaldo Piaggio 34 I-56025 Pontedera Italy|Scuola Super Sant Anna Smart Biointerfaces Biorobot Inst Viale Rinaldo Piaggio 34 I-56025 Pontedera Italy;

    Ist Italiano Tecnol Smart Biointerfaces Viale Rinaldo Piaggio 34 I-56025 Pontedera Italy;

    Azienda Osped Univ Pisana Via Roma 67 I-56126 Pisa Italy;

    Ist Italiano Tecnol Smart Biointerfaces Viale Rinaldo Piaggio 34 I-56025 Pontedera Italy;

    Ist Italiano Tecnol NanoChem Via Morego 30 I-16163 Genoa Italy;

    Ist Italiano Tecnol Mat Characterizat Facil Via Morego 30 I-16163 Genoa Italy;

    Univ Pisa Dipartimento Med Clin & Sperimentale Via Roma 55 I-56126 Pisa Italy;

    Ist Italiano Tecnol Smart Biointerfaces Viale Rinaldo Piaggio 34 I-56025 Pontedera Italy;

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

    Nanoceria; Stem cells; Radiation; Planarian;

    机译:纳米细胞;干细胞;辐射;林;

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