高剂量的聚乙烯纳米颗粒会触发脊髓中MAPK通路的异常激活,并导致疼痛过敏
Yuan Yin1,2, Panyang Gu1,2, Hanyu Jiang1
1Department of Biochemistry and Molecular Biology & Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.
Journal of nanobiotechnology
|March 2, 2026
概括
暴露于聚乙烯纳米颗粒 (PSNP) 可能导致疼痛过敏. 这些纳米颗粒与脊髓微细胞中的基因激活蛋白激酶 (MAPK) 途径相互作用,导致神经炎症和改变疼痛感知.
科学领域:
- 环境健康 环境健康
- 神经科学是一个神经科学.
- 毒理学 毒理学 毒理学
背景情况:
- 纳米塑料,特别是聚乙烯纳米颗粒 (PSNP),是普遍存在的环境污染物.
- 人类接触纳米塑料的情况很普遍,但它们对健康的影响,特别是对疼痛感知的影响,尚不清楚.
研究的目的:
- 调查慢性暴露在聚乙烯塑料和异常疼痛感知之间的联系.
- 阐明高剂量PS NPs诱导疼痛过敏的分子机制.
主要方法:
- 对暴露在聚乙烯制造环境中的人口的流行病学调查.
- 在动物模型中使用高剂量的PSNP暴露的体内研究.
- 分子动力学模拟来分析NP-蛋白相互作用.
- 药理上抑制MAPK路径和微质枯竭.
主要成果:
- 长期暴露在聚钢制造环境中与异常的疼痛感知相关.
- 高剂量的PS NPs在动物模型中诱导疼痛过敏.
- PS NPs被脊柱背角微内化并与MAPK通路组件结合 (ERK,JNK,p38).
- 结合诱导了MAPK的形状变化,促进了激活和随后的神经炎症.
- 通过微质枯竭和MAPK抑制,PS NPs诱导的疼痛过敏性被逆转.
结论:
- 聚乙烯纳米颗粒通过激活微质中的MAPK通路来触发感官病理生理学.
- 这项研究确立了纳米塑料环境污染物和异常体感之间的机械联系.
- 这些发现强调了与纳米塑料暴露相关的潜在神经风险.
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