Selective Inhibitors of Autophagy Reveal New Link between the Cell Cycle and Autophagy and Lead to Discovery of Novel Synergistic Drug Combinations.

Selective Inhibitors of Autophagy Reveal New Link between the Cell Cycle and Autophagy and Lead to Discovery of Novel Synergistic Drug Combinations.
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自噬的选择性抑制剂揭示了细胞周期与自噬之间的新联系,并导致发现了新型协同药物组合。

DOI:
10.1021/acschembio.2c00710
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发表时间:
2022-12-16
影响因子:
4
通讯作者:
Lazarus, Michael B.
Lazarus, Michael B.
中科院分区:
生物学2区
文献类型:
--
作者:
Sung, Kisa;Kurowski, Agata;Lansiquot, Carisse;Wan, Kanny K.;Patnaik, Samarjit;Walsh, Martin J.;Lazarus, Michael B.

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自噬是一种保守的代谢途径,是许多疾病的核心。最近,人们对用小分子抑制剂靶向自噬作为一种可能的治疗策略产生了很大的兴趣。然而,许多用于自噬的化合物是非选择性的。在这里,我们利用已建立的选择性小分子抑制剂探索了胰腺癌细胞自噬的抑制,并发现自噬途径与细胞周期进展之间存在意想不到的联系。我们的研究结果表明,使用具有不同自噬途径靶标的抑制剂进行治疗会阻断细胞复制并激活其他代谢途径以补偿自噬的阻断。寻找可能与自噬抑制协同作用的已知药物的公正筛选揭示了新的组合疗法,可能为胰腺癌的治疗方法提供蓝图。药物 quizartinib 和 THZ1 在抑制自噬的胰腺细胞中表现出强烈的协同作用。
Autophagy is a conserved metabolic pathway that is central to many diseases. Recently, there has been a lot of interest in targeting autophagy with small molecule inhibitors as a possible therapeutic strategy. However, many of the compounds used for autophagy are non-selective. Here, we explored the inhibition of autophagy in pancreatic cancer cells using established selective small molecule inhibitors and discovered an unexpected link between the autophagy pathway and progression through the cell cycle. Our findings revealed that treatments with inhibitors that have different autophagy pathway targets block cell replication and activate other metabolic pathways to compensate for the blockade in autophagy. An unbiased screen looking for known drugs that might synergize with autophagy inhibition revealed new combination treatments that might provide a blueprint for therapeutic approaches to pancreatic cancer. The drugs quizartinib and THZ1 showed a strong synergistic effect in pancreatic cells with autophagy inhibition.
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