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铁螯合剂对乳胞素引起的tau蛋白磷酸化的影响 被引量:1

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摘要 目的探讨铁螯合剂对蛋白酶体活性抑制引起的tau蛋白过度磷酸化的影响。方法对大鼠双侧海马同时注射乳胞素及侧脑室注射铁螯合剂去铁胺,分别进行蛋白酶体活性检测、免疫印迹、免疫组织化学实验,检测大鼠海马内tau蛋白的磷酸化改变情况。结果 (1)乳胞素引起蛋白酶体活性明显下降,而铁螯合剂可以部分逆转下降的蛋白酶体活性;(2)免疫印迹和免疫组化方法均显示,乳胞素降低了蛋白酶体活性下降引起的tau蛋白Ser-396位点过度磷酸化。结论铁螯合剂可以降低乳胞素引起的大鼠海马内tau蛋白过度磷酸化。
出处 《广东医学》 CAS CSCD 北大核心 2011年第4期432-434,共3页 Guangdong Medical Journal
基金 国家自然科学基金资助项目(编号:30901806) 广东省自然科学基金资助项目(编号:9451018201003650)
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