酶合成的多酸 (酸) 调节甲胺合成酶活性和神经母细胞瘤形态,与酸盐类型内分泌干扰物相反
Gabriela García-Cerón1,2, Iván H Bello-Cortés1, Yazmín Ramiro-Cortés3
1Depto. de Alimentos y Biotecnología, Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, México.
Biopolymers
|December 11, 2025
概括
聚酸 (PGAL),一种氧化还原活性化合物 (RAC),保护人类神经母细胞细胞免受内分泌破坏性化学物质 (EDC) 和正常化的甲氨酸合成酶 (MS) 活动的影响,与常见的EDC不同.
科学领域:
- 神经生物学 神经生物学 神经生物学
- 环境健康 环境健康
- 生物化学 生物化学
背景情况:
- 内分泌干扰化学物质 (EDC) 对神经发育构成风险.
- 放射性活性化合物 (RACs) 正在研究其潜在的保护作用.
- 氨酸合成酶 (MS) 是细胞代谢中的一个关键酶.
研究的目的:
- 研究聚合物RAC聚酸 (PGAL) 对人类神经母细胞瘤SH-SY5Y细胞形态和 metionin合成酶 (MS) 活性的影响.
- 为了比较PGAL的效果与常见的EDCs,如二二甲基甲酸 (DEHP) 和单甲酸 (MBP) 的效果.
- 探索MS酶活性与内分泌干扰风险之间的关系.
主要方法:
- 暴露SH-SY5Y细胞对PGAL,DEHP,MBP,硫 (SFN) 和酸 (GA) 的作用.
- 细胞形态和密度的评估.
- 测量氨酸合成酶 (MS) 酶活性.
主要成果:
- EDCs (DEHP,MBP) 降低了细胞密度,并促进了神经母细胞瘤表型,神经元较短.
- 暴露于PGAL导致同质细胞密度和与对照组相似的表型.
- EDCs增加了64%的MS酶活性;PGAL显示下降了51%,而GA显示增加了35%.
结论:
- 在神经母细胞瘤细胞中,PGAL作为保护剂,防止EDC诱导的细胞损伤.
- PGAL使 metionin synthase (MS) 活性正常化,与EDCs的影响形成鲜明对比.
- 这项研究确定了MS活动,内分泌干扰和神经生物学中的聚合物RACs的保护潜力之间的联系.
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