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首页> 外文期刊>Cellular and Molecular Bioengineering >Endothelial Cell Inflammatory Reactions Are Altered in the Presence of E-Cigarette Extracts of Variable Nicotine
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Endothelial Cell Inflammatory Reactions Are Altered in the Presence of E-Cigarette Extracts of Variable Nicotine

机译:内皮细胞炎症反应在存在可变尼古丁的电子烟提取物的情况下发生改变

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Exposure to tobacco smoke has been associated with heightened endothelial cell activities associated with cardiovascular diseases (CVD). Conversely, the exposure to nicotine both activates and inhibits particular endothelial cell functions. However, which constituent(s) of tobacco smoke is responsible for these changes is unknown, since toxic gases and fine particulate matter cannot be isolated. Electronic cigarette vapor allows us to isolate these constituents, providing us the ability to evaluate individual constituents. Here, we used e-cigarettes to (1) identify which constituents of tobacco products are most responsible for altered CVD functions and (2) elucidate the underlying risk of e-cigarette exposure. To accomplish this goal, endothelial cells were exposed to extracts produced from tobacco cigarettes or e-cigarettes. Endothelial cell inflammatory processes, viability, density and metabolic activity were observed. In general, a significant increase in complement deposition, the expression of the receptors for C1q, coupled with a decrease in cell proliferation and metabolic activity was observed. These results were independent of nicotine and the exposure to e-vapor was just as harmful as tobacco smoke extracts. Thus, the exposure to fine particulate matter and not toxic combustion gases or nicotine may be the most critical for regulating CVD progression.
机译:暴露于烟草烟雾与心血管疾病 (CVD) 相关的内皮细胞活性增强有关。相反,接触尼古丁会激活和抑制特定的内皮细胞功能。然而,烟草烟雾的哪些成分导致了这些变化尚不清楚,因为有毒气体和细颗粒物无法分离。电子烟蒸气使我们能够分离这些成分,使我们能够评估单个成分。在这里,我们使用电子烟来(1)确定烟草制品的哪些成分对CVD功能的改变负有最大责任,以及(2)阐明电子烟暴露的潜在风险。为了实现这一目标,将内皮细胞暴露于从烟草香烟或电子烟中产生的提取物中。观察内皮细胞炎症过程、活力、密度和代谢活性。一般来说,观察到补体沉积,C1q受体的表达显着增加,以及细胞增殖和代谢活性的降低。这些结果与尼古丁无关,暴露于电子烟与烟草烟雾提取物一样有害。因此,暴露于细颗粒物而不是有毒的燃烧气体或尼古丁可能是调节心血管疾病进展的最关键因素。

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