cancer therapy. Combination chemotherapy using Tdp1 inhibitors as a component can potentially improve therapeutic response to many chemotherapeutic regimes. A new set of usnic acid derivatives with hydrazonothiazole pharmacophore moieties were synthesized and evaluated as Tdp1 inhibitors. Most of these compounds were found to be potent inhibitors with IC50 values in the low nanomolar range. The activity
酪
氨酰 DNA
磷酸二酯酶 1 (Tdp1) 是癌症治疗中一个有前景的治疗靶点。使用 Tdp1
抑制剂作为成分的联合化疗可能会改善对许多化疗方案的治疗反应。合成了一组新的具有 hydrazonothiazole 药效团部分的
松萝酸衍
生物,并作为 Tdp1
抑制剂进行了评估。大多数这些化合物被发现是有效的
抑制剂,IC50 值在低纳摩尔范围内。化合物的活性通过结合实验得到验证,并得到分子模型的支持。还证明了以无毒浓度使用的最有效
抑制剂使肿瘤对抗癌药物
拓扑替康敏感的能力。研究了
抑制剂和
拓扑替康对其协同作用的给药顺序,