相关实验视频

Updated: Mar 3, 2026

Assessment of the Acute Inhalation Toxicity of Airborne Particles by Exposing Cultivated Human Lung Cells at the Air-Liquid Interface

Assessment of the Acute Inhalation Toxicity of Airborne Particles by Exposing Cultivated Human Lung Cells at the Air-Liquid Interface

Published on: February 23, 2020

一个空气-液体接口系统用于对卷烟烟雾和的联合暴露的毒性研究

Nadia Boroumand¹, Ana Teresa Juárez-Facio², Szabolcs Polgár³

¹Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Sweden.

International journal of radiation biology

|March 2, 2026

概括

这项研究验证了一种新的系统,可以同时将细胞暴露在和香烟烟雾中. 该系统表明,联合暴露显著降低了细胞活力,为研究环境共同暴露提供了一个新的平台.

科学领域:

环境健康环境健康
毒理学毒理学毒理学
在 Vitro 暴露系统中.

背景情况:

众所周知,香烟烟雾 (CS) 改变了暴露于的肺癌风险,但根本机制尚不清楚.
关于和CS联合作用的实验研究受到缺乏合适的体外暴露平台的限制.

研究的目的:

验证一种新的空气-液体接口 (ALI) 暴露系统,用于对和CS进行可控的同时暴露.
建立一个概念验证平台,用于调查环境共同暴露的生物效应.

主要方法:

开发了一个集226Ra源,子监测器,吸烟机,粒子计数器和ALI设置的系统.
该系统实现了目标CS度 (5 mg/m3),并提供了可控的剂量 (平均2小时暴露1mGy).
BEAS-2B细胞暴露在,CS或两者之间,并评估细胞活力和IL-8分泌.

主要成果:

单独暴露于或CS使细胞活力分别降低到75%和83%.
对和CS的联合暴露显著降低了细胞活力,达到55%.
观察到增加促炎性IL-8分泌的趋势,尽管在统计学上并不显著.

结论:

开发的基于ALI的暴露系统允许精确的剂量测量和生物评估.
这个经过验证的系统作为一个关键的概念验证平台,用于未来研究环境共同暴露对健康的影响.

关键词:

在体外暴露系统中的体外暴露系统.空气污染物的空气污染物.空气液体接口系统的系统接口香烟的烟雾,就是烟雾.拉登是一种.

更多相关视频

An Air-liquid Interface Bronchial Epithelial Model for Realistic, Repeated Inhalation Exposure to Airborne Particles for Toxicity Testing

An Air-liquid Interface Bronchial Epithelial Model for Realistic, Repeated Inhalation Exposure to Airborne Particles for Toxicity Testing

Published on: May 13, 2020

Isolation of Mouse Respiratory Epithelial Cells and Exposure to Experimental Cigarette Smoke at Air Liquid Interface

Isolation of Mouse Respiratory Epithelial Cells and Exposure to Experimental Cigarette Smoke at Air Liquid Interface

Published on: February 21, 2011

相关概念视频

Toxicity Testing in Animals

Toxicity Testing in Animals

Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...