天然产品艾文维拉米德与基蛋白核胺结合
Jeremy E Wulff1, Romain Siegrist, Andrew G Myers
1Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
Journal of the American Chemical Society
|October 26, 2007
概括
(+) 烯胺是一种类化合物,与核胺 (NPM) 结合,核胺是一种涉及癌症的蛋白质. 这种相互作用影响瘤抑制剂p53,为新的癌症疗法提供了潜力.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 核胺 (NPM) 是一种在各种人体瘤中过度表达的核伴侣,并调节瘤抑制剂p53.
- 自然存在的类化合物的抗增殖作用对癌症治疗有兴趣.
- 针对NPM的非性小分子以前没有被描述过.
研究的目的:
- 为了研究 (+) - 亚文维拉胺与核胺的结合.
- 为了探索 (+) -avrainvillamide在癌细胞中的作用机制.
- 评估 (+) - 亚文维拉胺作为抗癌治疗的潜力.
主要方法:
- 使用生物-avrainvillamide结合物的亲和分离,然后进行MS测序和Western-blotting以确定蛋白质标.
- 用乙胺,自由 (+) - 亚布林维拉胺和结构类似物进行抑制测定.
- 光显微镜使用dansil-avrainvillamide结合物来确定细胞局部.
- 核胺氨酸残留物的局部导向突变发生.
- 西方斑点测试以评估p53度和siRNA以耗尽核胺.
主要成果:
- (+) - 艾文维拉胺与核胺 (NPM) 结合.
- 一种合成合物证实NPM是标,与与抗增殖功效相关的类似物抑制结合.
- 艾文维拉胺局限于核细胞和细胞质,并特别准NPM的氨酸275氨酸.
- 用 (+) -avrainvillamide治疗会增加细胞p53水平,并在NPM耗尽时增强对亡的敏感性.
结论:
- (+) - 艾文维拉胺是一种非性小分子,与致癌蛋白核胺结合.
- (+) - 亚文维拉胺和NPM之间的相互作用影响p53调节,并诱导亡.
- 这项研究确定 (+) - 亚文维拉胺是开发新型抗癌药物的有希望的化合物.
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