Targeting Pancreatic Cancer with Novel Plumbagin Derivatives: Design, Synthesis, Molecular Mechanism, <i>In Vitro</i> and <i>In Vivo</i> Evaluation
作者:Suresh Awale、Hayato Baba、Nguyen Duy Phan、Min Jo Kim、Juthamart Maneenet、Koichi Sawaki、Mitsuro Kanda、Tomoyuki Okumura、Tsutomu Fujii、Takuya Okada、Takahiro Maruyama、Takahiro Okada、Naoki Toyooka
DOI:10.1021/acs.jmedchem.3c00394
日期:2023.6.22
potent preferential cytotoxicity against pancreatic cancer cells under nutrient-deprived conditions. Therefore, we synthesized a series of plumbagin derivatives and found that 2-(cyclohexylmethyl)-plumbagin (3f) was the most promising compound with a PC50 value of 0.11 μM. Mechanistically, 3f was found to inhibit the PI3K/Akt/mTOR signaling pathways, leading to cancer cell death under nutrient-deprived conditions
胰腺肿瘤生长在以营养匮乏和缺氧为特征的“严峻”肿瘤微环境中。这导致胰腺癌细胞中适应性途径的激活,促进对营养饥饿和侵袭性恶性肿瘤的耐受性。传统的抗癌药物通常对在这种严峻条件下生长的肿瘤无效。白花丹素是一种植物来源的萘醌,在营养缺乏的条件下对胰腺癌细胞表现出强大的优先细胞毒性。因此,我们合成了一系列白花丹素衍生物,发现2-(环己基甲基)-白花丹素( 3f )是最有前途的化合物,其PC 50值为0.11 μM。从机制上讲, 3f可抑制 PI3K/Akt/mTOR 信号通路,导致营养缺乏条件下癌细胞死亡。使用胰腺癌异种移植小鼠模型的体内研究证实了3f的功效,证明以剂量依赖性方式显着抑制肿瘤生长。化合物3f代表了基于反紧缩策略的抗癌药物开发的一种非常有前景的先导药物。