的毒性及其对通路的干扰在各种细胞系上进行了测试
Ana Marija Marjanović Čermak1, Stipe Mustać2, Petra Cvjetko3
1Institute for Medical Research and Occupational Health, Ksaverska cesta 2, Zagreb, 10000, Croatia. amarjanovic@imi.hr.
Biological trace element research
|February 13, 2024
概括
(Tl) 毒性因细胞类型而异,神经母细胞瘤细胞最敏感. (K) 补充部分保护大多数细胞免受TL细胞毒性,这表明K运输干扰.
科学领域:
- 毒理学 毒理学 毒理学
- 细胞生物学 细胞生物学
- 环境健康 环境健康
背景情况:
- (Tl) 是一种高度有毒的重金属,其毒性机制尚未完全理解.
- 了解组织特异性TL细胞毒性对于评估器官损伤至关重要.
- 需要对Tl与 (K) 等必不可少的细胞离子运输的潜在干扰进行研究.
研究的目的:
- 为了评估不同的人类和动物细胞系的 (I) 乙酸细胞毒性.
- 为了确定器官对Tl暴露的特定敏感性.
- 调查Tl和K运输之间的竞争互动.
主要方法:
- 人类角质细胞 (HaCaT),肝细胞癌 (HepG2),脏上皮细胞 (PK15),神经母细胞瘤 (SH-SY5Y) 和肺纤维细胞细胞 (V79) 对酸的暴露.
- 使用MTT测定和形态监测评估细胞毒性.
- 通过与 (I) 乙酸盐和 (I) 乙酸盐同时处理细胞来评估Tl和K的相互作用.
主要成果:
- 人类神经母细胞瘤 (SH-SY5Y) 细胞对Tl表现出最高的敏感性,而肝细胞癌 (HepG2) 细胞则最具耐药性.
- 与单独的Tl治疗相比,与 (I) 乙酸联合使用显著增加了大多数细胞系 (V79除外) 的细胞活力.
- 细胞对Tl的敏感性受到组织起源,细胞功能和Na+/K+-ATPase活性的影响.
结论:
- 细胞对毒性的敏感性在很大程度上取决于细胞系的起源组织及其特定的生物功能.
- 的毒性机制可能涉及干扰运输通路.
- 补充剂可能在某些细胞类型中提供一种保护策略,防止毒性.
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