双甲基甲酸和类固醇激素混合物对人类前列腺细胞的作用
Aldo Mileo1, Teresa Chianese1, Gianluca Fasciolo1
1Department of Biology, University Federico II of Naples, Via Cinthia 26, 80126 Naples, Italy.
International journal of molecular sciences
|September 28, 2023
概括
在化品中常见的二甲 (DBP) 暴露会通过改变激素信号和增加氧化应激来破坏前列腺细胞功能. 这种EDC暴露促进了细胞迁移和易受癌症转化.
科学领域:
- 内分泌学 在内分泌学.
- 毒理学 毒理学 毒理学
- 细胞生物学 细胞生物学
背景情况:
- 甲酸盐,特别是二丁甲酸盐 (DBP),是广泛用于化品和个人护理产品中的可塑剂.
- DBP是一种低分子量酸盐,已知具有生殖毒性,包括丸损伤.
- 前列腺是内分泌干扰化学物质 (EDC) 的目标,因为它对性类固醇敏感,影响前列腺平衡和病理.
研究的目的:
- 调查DBP单独和与 (T) 和17β-雌激醇 (E2) 联合对人类前列腺细胞系PNT1A.A.的影响.
- 了解DBP作为EDC在改变前列腺细胞生理学的作用及其与癌症转变的潜在联系.
主要方法:
- 利用人类前列腺细胞系PNT1A来模拟环境污染.
- 评估了DBP,T,E2及其组合对细胞活力,类固醇受体 (ERα和AR) 激活,局部化和氧化还原平衡的影响.
- 评估了细胞迁移潜力的变化.
主要成果:
- 通过激活雌激素受体α (ERα) 和雄激素受体 (AR),DBP及其混合物显著增加了PNT1A细胞活力.
- 与E2.2相比,DBP调节了非单调的类固醇受体水平,并将ERα转移到核中长时间.
- DBP改变了氧化还原稳定,增加了氧化敏感性,并增强了前列腺细胞的迁移潜力,在组合治疗中观察到持续的AR激活.
结论:
- 在前列腺细胞中,DBP作为内分泌干扰化学物质 (EDC),单独或与内源性类固醇激素结合.
- 暴露于DBP会改变前列腺细胞生理学,包括受体信号和氧化还原平衡,增加对癌症转变的易感性.
- DBP对ERα和AR信号和细胞迁移的影响突显了其在前列腺病理中的潜在作用.
相关概念视频
Target Cell Response to Hormones
3.1K
Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
3.1K
Intracellular Hormone Receptors
55.4K
Lipid-soluble hormones diffuse across the plasma and nuclear membrane of target cells to bind to their specific intracellular receptors. These receptors act as transcription factors that regulate gene expression and protein synthesis in the target cell
55.4K


