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Updated: Jun 3, 2025

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Induction and Analysis of Epithelial to Mesenchymal Transition
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在新氧化物纳米粒子诱导的肺上皮层介质细胞过渡中Circ_009773的功能和潜在ceRNA识别
Lei Gao1, Juan Juan2, Zimeng Zheng2
1Department of Public Health, International College, Krirk University, Bangkok 10220, Thailand.
Toxics
|January 8, 2025
概括
新氧化物纳米颗粒 (NPs-Nd2O3) 触发肺组织上皮层-介质细胞过渡 (EMT). Circ_009773通过调节miR-135b-5p来抑制这种NPs-Nd2O3诱导的EMT.
科学领域:
- 环境毒理学环境毒理学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 新氧化物纳米粒子 (NPs-Nd2O3) 对呼吸系统健康构成风险,可能导致肺组织损伤.
- 通过NPs-Nd2O3诱导上皮层-介质细胞过渡 (EMT) 和其在肺组织中的潜在机制在很大程度上仍未被描述.
研究的目的:
- 调查circ_009773在NPs-Nd2O3诱导的肺组织中EMT中的作用.
- 阐明circ_009773影响NPs-Nd2O3介导的肺损伤的分子机制.
主要方法:
- 使用16HBE细胞和Sprague-Dawley (SD) 鼠肺组织的体内和体外实验.
- 评估EMT标记物 (表皮和介质细胞),circ_009773表达,及其与miR-135b-5p的相互作用.
主要成果:
- NPs-Nd2O3暴露诱导了肺细胞和组织中的EMT,由改变的标记表达证实.
- circ_009773 的表达被 NPs-Nd2O3降低了.
- circ_009773证明了对NPs-Nd2O3诱导的EMT的抑制作用.
- circ_009773通过与miR-135b-5p结合,作为竞争的内源RNA (ceRNA) 起作用.
结论:
- circ_009773在肺组织中对NPs-Nd2O3诱导的EMT起着保护作用.
- 抑制机制涉及circ_009773与miR-135b-5p竞争结合,从而调节EMT通路.
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