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在 HaCaT 角质细胞对紫外线暴露的反应中,细胞运动性蛋白质的变化

Iu S Kisrieva¹, N F Samenkova¹, N A Bolochenkov¹

¹Institute of Biomedical Chemistry, Moscow, Russia.

Biomeditsinskaia khimiia

|May 6, 2025

概括

紫外线A (UVA) 辐射会改变HaCaT角质细胞蛋白. 低剂量的UVA会增加蛋白质含量,特别是那些参与细胞运动的蛋白质,而高剂量的UVA会降低蛋白质含量并增加下调.

科学领域:

蛋白质组学是指蛋白质组学.
皮肤病学皮肤病学
细胞生物学细胞生物学

背景情况:

HaCaT角质细胞是皮肤研究的标准模型.
紫外线A (UVA) 辐射是已知的影响皮肤的环境压力因素.
了解细胞对UVA的反应对于皮肤健康和疾病研究至关重要.

研究的目的:

在亚毒性UVA照射后对HaCaT角质细胞的蛋白质表达变化进行比较分析.
为了确定受不同UVA剂量影响的特定蛋白质群.
为了研究紫外线诱导的蛋白质组变化的功能影响.

主要方法:

使用质谱学进行蛋白质组学分析,以识别和量化蛋白质.
对HaCaT角质细胞暴露于两种不同的亚毒性UVA辐射剂量 (5 J/cm2和25 J/cm2).
统计分析以确定蛋白质相对含量的显著变化.

主要成果:

在HaCaT角质细胞中发现了930种蛋白质.
累计UVA剂量为5J/cm2导致大多数已识别的蛋白质的相对含量显著增加 (54.5%).
25 J/cm2的累积UVA剂量导致上调蛋白的比例降低 (43.0%) 和下调蛋白的数量增加 (84).
蛋白质的相对含量增加主要与细胞运动,细胞形状/大小调节,形态发生和皮肤重塑有关.

结论:

亚毒性UVA辐射诱导了HaCaT角质细胞的剂量依赖的蛋白质变化.
低剂量的UVA主要对参与细胞功能,如运动性和结构的蛋白质进行上调.
较高的UVA剂量将反应转向蛋白质下调,表明更复杂的细胞应激反应影响皮肤重塑过程.

关键词:

一个DE凝度的1DE凝度.安德罗米达星是什么?安德罗米达星是什么?这是LC-MS/MS.这是MaxQuant.这是MaxQuant软件.超紫外线 (UVA) 是一种紫外线.细胞运动性蛋白质细胞运动性蛋白质角质细胞 HaCaT HaCaT

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