Rad51/BRCA2 disruptors inhibit homologous recombination and synergize with olaparib in pancreatic cancer cells
作者:Marinella Roberti、Fabrizio Schipani、Greta Bagnolini、Domenico Milano、Elisa Giacomini、Federico Falchi、Andrea Balboni、Marcella Manerba、Fulvia Farabegoli、Francesca De Franco、Janet Robertson、Saverio Minucci、Isabella Pallavicini、Giuseppina Di Stefano、Stefania Girotto、Roberto Pellicciari、Andrea Cavalli
DOI:10.1016/j.ejmech.2019.01.008
日期:2019.3
double-strand break repair. Here, we have computationally designed, synthesized, and tested over 40 novel derivatives. Additionally, we designed and conducted novel biological assays to characterize how they disrupt the Rad51-BRCA2 interaction and inhibit double-strand break repair. These compounds synergized with olaparib to target pancreatic cancer cells with functional BRCA2. This supports the idea that
Olaparib是一种PARP抑制剂(PARPi)。对于携带BRCA1或BRCA2突变的患者,奥拉帕尼被批准用于治疗卵巢癌,并在临床试验中被批准用于治疗乳腺癌和胰腺癌。在BRCA2缺陷患者中,PARPi抑制DNA单链断裂修复,而BRCA2突变阻碍双链断裂修复。最近,我们发现了一系列三唑衍生物,它们通过破坏Rad51-BRCA2的相互作用从而模拟双链断裂修复来模拟BRCA2突变。在这里,我们已经通过计算设计,合成和测试了40多种新型衍生物。此外,我们设计并进行了新颖的生物学分析,以表征它们如何破坏Rad51-BRCA2相互作用并抑制双链断裂修复。这些化合物与olaparib协同作用,靶向具有功能性BRCA2的胰腺癌细胞。这支持了有机小分子可以模仿基因突变以改善精密医学用抗癌药物的观点的观点。此外,可以在其他遗传途径中利用这种范例来发现创新的抗癌靶标和候选药物。