Zhang Shouyue, Zhang Jin, An Yang, Zeng Xiaoxi, Qin Ziyi, Zhao Yuqian, Xu Heng, Liu Bo
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 61004, China.
Department of Laboratory Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
Acta Pharm Sin B. 2021 May;11(5):1227-1245. doi: 10.1016/j.apsb.2020.12.013. Epub 2020 Dec 19.
Autophagy is a critical cellular homeostatic mechanism, and its dysfunction is linked to invasive breast carcinoma (BRCA). Recently, several omics methods have been applied to explore autophagic regulators in BRCA; however, more reliable and robust approaches for identifying crucial regulators and druggable targets remain to be discovered. Thus, we report here the results of multi-omics approaches to identify potential autophagic regulators in BRCA, including gene expression (EXP), DNA methylation (MET) and copy number alterations (CNAs) from The Cancer Genome Atlas (TCGA). Newly identified candidate genes, such as , , , , and , were confirmed to be involved in the positive or negative regulation of autophagy in BRCA. was identified firstly as a negative autophagic regulator, and siRNA/shRNA- were shown to induce autophagy-associated cell death in and breast cancer models. Moreover, a novel small-molecule activator of , 1-methylbenzylamino amiodarone, was discovered to induce autophagy and . Together, these results provide multi-omics approaches to identify some key candidate autophagic regulators, such as the negative regulator and positive regulator in BRCA, and highlight and as new druggable targets that could be used to fill the gap between autophagy and cancer drug development.
自噬是一种关键的细胞稳态机制,其功能障碍与浸润性乳腺癌(BRCA)相关。最近,几种组学方法已被应用于探索BRCA中的自噬调节因子;然而,用于识别关键调节因子和可成药靶点的更可靠、更稳健的方法仍有待发现。因此,我们在此报告多组学方法的结果,以识别BRCA中潜在的自噬调节因子,包括来自癌症基因组图谱(TCGA)的基因表达(EXP)、DNA甲基化(MET)和拷贝数改变(CNA)。新鉴定的候选基因,如 、 、 、 和 ,被证实参与BRCA中自噬的正调控或负调控。 首先被鉴定为自噬负调节因子,并且在 和 乳腺癌模型中,siRNA/shRNA - 被证明可诱导自噬相关的细胞死亡。此外,还发现了一种新型的 的小分子激活剂,1 - 甲基苄基氨基胺碘酮,可诱导自噬 和 。总之,这些结果提供了多组学方法来识别一些关键的自噬候选调节因子,如BRCA中的负调节因子 和正调节因子 ,并突出了 和 作为新的可成药靶点,可用于填补自噬与癌症药物开发之间的空白。