Cancer Research Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.
Bioorg Med Chem Lett. 2011 Jul 15;21(14):4332-6. doi: 10.1016/j.bmcl.2011.05.049. Epub 2011 May 24.
We report the systematic rational design and synthesis of new monovalent Smac mimetics that bind preferentially to the BIR2 domain of the anti-apoptotic protein XIAP. Characterization of compounds in vitro (including 9i; ML101) led to the determination of key structural requirements for BIR2 binding affinity. Compounds 9h and 9j sensitized TRAIL-resistant breast cancer cells to apoptotic cell death, highlighting the value of these probe compounds as tools to investigate the biology of XIAP.
我们报告了新单价 Smac 类似物的系统合理设计和合成,这些类似物优先与抗凋亡蛋白 XIAP 的 BIR2 结构域结合。在体外对化合物(包括 9i;ML101)的表征导致确定了 BIR2 结合亲和力的关键结构要求。化合物 9h 和 9j 使 TRAIL 耐药乳腺癌细胞对细胞凋亡敏感,突出了这些探针化合物作为研究 XIAP 生物学的工具的价值。