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Function inhibition of vesicular monoamine transporter on intervention of toxicity and antioxidants for PC12 cells
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- Author:
- No author available
- Journal Title:
- JOURNAL OF NANJING MILITARY MEDICAL COLLEGE
- Issue:
- 4
- DOI:
- No doi available
- Key Word:
- 帕金森病;囊泡单胺类转运体;利血平;多巴胺;抗氧化剂;PC12细胞
Abstract： 目的:研究囊泡单胺类转运体(VMAT)功能抑制对大鼠嗜铬瘤(PC12)细胞产生的内源性毒性及抗氧化剂的保护作用.方法:用流式细胞仪观察VMAT功能抑制以及不同干预方法对PC12细胞存活的影响和细胞死亡方式.结果:单独加入VMAT抑制剂利血平对PC12细胞无毒性作用;利血平协同多巴胺明显增加多巴胺的毒性,使同样浓度的多巴胺诱发PC12细胞的凋亡率明显增加.加入还原型谷胱甘肽(GSH)、二硫苏糖醇(DTr)和脉冲1号使PC12细胞的生存率明显提高.结论:VMAT功能抑制触发了多巴胺内源性毒性可诱发细胞凋亡,具有抗氧化作用的制剂有细胞保护作用.
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