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Updated: Jul 15, 2025

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Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
35.8K
在甲状腺毛囊细胞中诱导上皮层-介质细胞过渡与细胞粘附变化和低剂量超辐射敏感性有关
Ankit Mathur1, Vijayakumar Chinnadurai2, Param Jit Singh Bhalla2
1Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Brig. S.K. Mazumdar Road, Timarpur, Delhi, India.
概括
甲状腺细胞中的上皮-介质细胞过渡 (EMT) 增加了对低剂量辐射的敏感性. 然而,在辐射诱导的转化过程中形成的适应性抵抗可以减轻这种过敏性.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 辐射瘤学 辐射瘤学
背景情况:
- 表皮-介质细胞过渡 (EMT) 改变了细胞粘附,这是以前与低剂量放射过敏性 (HRS) 相关的一个因素.
- 需要阐明EMT诱导的表型可塑性在瘤转变期间对低剂量HRS的影响.
研究的目的:
- 调查在瘤转变期间获得EMT是否会影响低剂量辐射的敏感性.
主要方法:
- 甲状腺细胞经历了营养压力,产生了不朽的INM-Thy1细胞.
- 用玛辐射或化学剂对细胞进行治疗以诱导转化 (INM-Thy1R,INM-Thy1C).
- 评估了形态变化,染色体异常,细胞粘附,基依赖性,瘤性和放射性敏感性.
主要成果:
- 这两种转变体都显示出瘤发生特征,EMT特征和Wnt通路激活.
- 化学诱导转化剂 (INM-Thy1C) 呈现出显著的HRS,不受细胞密度的影响.
- 父母和辐射诱导的变压器 (INM-Thy1,INM-Thy1R) 没有显示HRS.
结论:
- 在甲状腺细胞中诱导EMT与对低剂量电离辐射的敏感性增加有关.
- 在辐射诱导的转变过程中获得的适应性抵抗可以减轻这种过敏性.
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