Synthesis and biological evaluation of santacruzamate A analogues for anti-proliferative and immunomodulatory activity
作者:Samantha M. Gromek、James A. deMayo、Andrew T. Maxwell、Ashley M. West、Christopher M. Pavlik、Ziyan Zhao、Jin Li、Andrew J. Wiemer、Adam Zweifach、Marcy J. Balunas
DOI:10.1016/j.bmc.2016.08.040
日期:2016.11
deacetylase (HDAC) activity. To optimize the enzymatic and cellular activity, 40 SCA analogues were synthesized in a systematic exploration of the zinc-binding group (ZBG), cap terminus, and linker region. Two cap group analogues inhibited proliferation of MCF-7 breast cancer cells, with analogous increased degranulation of cytotoxic T cells (CTLs), while one cap group analogue reduced CTL degranulation
Santacruzamate A (SCA) 是从巴拿马海洋蓝细菌中分离出来的天然产物,此前有报道称其具有有效且选择性的组蛋白脱乙酰酶 (HDAC) 活性。为了优化酶活性和细胞活性,通过对锌结合基团 (ZBG)、帽末端和接头区域的系统探索,合成了 40 种 SCA 类似物。两种帽组类似物抑制 MCF-7 乳腺癌细胞的增殖,类似地增加细胞毒性 T 细胞 (CTL) 的脱颗粒,而一种帽组类似物减少 CTL 脱颗粒,表明免疫反应受到抑制。对这些类似物的额外测试导致对先前报道的 SCA 作用机制的重新评估。这些类似物和由此产生的结构-活性关系将引起未来细胞增殖和免疫调节研究的兴趣。