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解读链接:碎片化聚钢作为皮肤炎症的驱动因素

Gyeong Bae Song¹, Jisoo Nam², Sangmin Ji¹

¹Department of Chemistry, Chung-Ang University, Seoul, Republic of Korea.

Journal of hazardous materials

|September 15, 2024

概括

纳米和微塑料 (NMP) 穿透人体皮肤,导致炎症. 碎片化聚钢 (fPS) 暴露会在皮肤细胞和模型中触发剂量依赖的炎症反应,突出显著的健康风险.

科学领域:

环境健康环境健康
毒理学毒理学毒理学
皮肤病学皮肤病学

背景情况:

纳米和微塑料 (NMP) 是普遍存在的环境污染物.
越来越多的证据表明,NMP对人类健康构成重大风险.

研究的目的:

为了研究碎片化聚钢 (fPS) 在人体皮肤上的透和炎症作用.
在各种皮肤模型中量化fPS透深度和数量.
为了阐明fPS诱导的皮肤炎症的分子机制.

主要方法:

使用人类角质细胞 (HaCaT) 和皮肤纤维细胞 (HDF) 细胞进行体外研究.
使用3D人类皮肤模型和小鼠背皮肤进行体外分析.
使用人类腹部皮肤模型进行体外评估.
RNA测序以分析基因表达变化.
在mRNA和蛋白质水平上验证发现.

主要成果:

碎片化聚钢 (fPS) 颗粒被HaCaT和HDF细胞内化,导致细胞毒性.
fPS在一个小时内穿透了3D人体皮肤模型的皮肤层 (平均 4.7μg对于小于2μm的颗粒).
RNA测序揭示了关键炎症基因 (例如IL-1α,IL-6,IL-8,ICAM-1) 的显著上调.
在3D人类和小鼠皮肤模型中,炎症反应显示出剂量依赖的增加.

结论:

碎片化聚钢很容易穿透人类皮肤模型.
暴露于fPS会在皮肤中产生强烈的,剂量依赖的炎症反应.
这些发现凸显了NMP对皮肤健康的毒理影响,需要进一步研究以减轻影响.

关键词:

碎片化聚乙烯的碎片化聚乙烯.在体外,体外和体外模型.炎症炎症是一种炎症.纳米和微塑料的纳米和微塑料穿透皮肤的情况.

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