电子烟蒸汽与脏和肝脏组织中的亲纤维基因表达有关
Wanjun Gu1, Howard Chang2,3, Poorvi Saini2,3
1Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94158, USA.
Research square
|November 24, 2025
概括
有或没有尼古丁的电子烟蒸汽改变了小鼠脏和肝脏中的基因表达. 这些变化表明纤维化和代谢功能障碍的潜在风险,强调需要进一步研究长期vaping效应.
科学领域:
- 毒理学和环境健康
- 分子生物学和基因组学
- 器官系统病理学 器官系统病理学
背景情况:
- 传统的烟草使用与许多疾病和器官损伤有关.
- 电子烟吸烟对健康的长期影响在很大程度上是未知的.
- 在动物模型中识别早期的分子信号可以预测人类健康风险.
研究的目的:
- 为了研究在电子烟气溶暴露后小鼠脏和肝脏组织的转录组变化.
- 确定尼古丁和载体化学物质对特定器官基因表达的影响.
- 识别与电子烟使用相关的潜在早期致病信号.
主要方法:
- 小鼠每天暴露在室内空气,电子烟蒸汽 (车辆) 或含尼古丁的电子烟蒸汽中,持续3个月.
- 在和肝脏组织上进行了RNA测序.
- 使用Apriori基因组分析来评估转录基因的变化.
主要成果:
- 接触电子烟 (含尼古丁或不含尼古丁) 改变了小鼠脏和肝脏的基因表达.
- 尼古丁暴露在脏中引起了更大的转录基因变化,而车载化学物质更多地影响了肝脏.
- 特定的基因表达变化表明氧化应激,炎症,脂质代谢中断和免疫信号改变.
结论:
- 长期吸入电子烟蒸汽会改变下游器官 (如脏和肝脏) 的基因表达.
- 观察到的转录组模式表明可能促进纤维化和代谢失调.
- 进一步的研究至关重要,以确定电子烟蒸汽的长期病理生理影响.
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