School of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
School of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
Bioorg Chem. 2021 Feb;107:104395. doi: 10.1016/j.bioorg.2020.104395. Epub 2020 Oct 21.
We report the design, synthesis, and biological evaluation of 13 new and 1 known anthraquinone derivatives which exerted cytotoxicity against PC3, A549 and NTUB1 cell lines. The results indicate that, among these 14, compounds-1 and 14 showed the highest growth inhibitory effect on NTUB1 and PC3 cells, respectively. Compound-1 at lower doses targets DNA, induces DNA damage and subsequently triggers G2/M arrest and apoptotic cell death at 24 h. Previously we reported that 14 induced PC3 cell autophagy and in treated PC3 cells, cleaved caspase-3 and cleaved PARP, and survivin did not increase and increase, respectively. The autophagic and necrotic cell deaths mediated by 14-triggered ROS generation. Our study is the first to investigate the biological mechanism of 14 action in detail. We find that when 14 was co-administrated with Bafilomycin A1 (BAF) in PC3 cells, rapid necrotic cell death occurred with no cleaved caspase-3 and cleaved PARP activation and increasing the expression of survivin. We further show that necrotic signaling in these cells coincided with production of reactive oxygen species. In the present study, we developed methods to synthesize five new 14 analogues for studing the structure-activity relationships. This study could provide valuable sight to find new antitumor agents for cancer therapy.
我们报告了 13 种新的和 1 种已知蒽醌衍生物的设计、合成和生物评价,这些衍生物对 PC3、A549 和 NTUB1 细胞系具有细胞毒性。结果表明,在这 14 种化合物中,化合物-1 和 14 对 NTUB1 和 PC3 细胞的生长抑制作用最强。化合物-1 在较低剂量时靶向 DNA,诱导 DNA 损伤,随后在 24 小时引发 G2/M 期阻滞和凋亡细胞死亡。我们之前报道过,14 诱导了 PC3 细胞自噬,在处理后的 PC3 细胞中,cleaved caspase-3 和 cleaved PARP 增加,而 survivin 没有增加。14 触发的 ROS 生成介导了自噬和坏死性细胞死亡。我们的研究首次详细研究了 14 在 PC3 细胞中的作用机制。我们发现,当 14 与 Bafilomycin A1 (BAF) 在 PC3 细胞中共同给药时,会迅速发生坏死性细胞死亡,没有 cleaved caspase-3 和 cleaved PARP 的激活,survivin 的表达增加。我们进一步表明,这些细胞中的坏死信号与活性氧的产生一致。在本研究中,我们开发了合成五种新的 14 类似物的方法,用于研究结构-活性关系。这项研究为癌症治疗提供了有价值的抗肿瘤药物。
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