Yang Zhaojie, Zhao Kexin, Li Xiangping, Yanzhang Ruoping, Zhang Huijun, Yu Yin, Yan Mingyang, Fang Shaobo, Li Tao, Li Hao, Chu Xiao, Han Siyuan, Zhang Ziliang, Teng Junyan, Jin Guoguo, Guo Zhiping
Henan Key Laboratory of Chronic Disease, Fuwai Central China Cardiovascular Hospital, Zhengzhou, China.
Laboratory of Bone Tumor, Luoyang Orthopedic Hospital of Henan Province (Orthopedic Hospital of Henan Province), Zhengzhou, China.
Cell Death Dis. 2025 May 6;16(1):366. doi: 10.1038/s41419-025-07692-z.
Ferroptosis, a regulated form of cell death characterized by iron-dependent phospholipid peroxidation, remains poorly understood in the context of esophageal cancer development and its regulatory mechanisms. Through comprehensive bioinformatic analyses, we identified ferroptosis-related pathways as crucial mediators in esophageal cancer progression, with ZIP8 emerging as a key regulatory element. We observed significant upregulation of ZIP8 in esophageal cancer specimens, which correlated with poor clinical outcomes. Functional studies demonstrated that ZIP8 depletion significantly attenuated cellular proliferation in vitro. Mechanistically, elevated ZIP8 expression enhanced zinc-dependent phosphorylation of CREB, leading to upregulation of the ferroptosis suppressor GPX4 and inhibition of this iron-dependent cell death modality. Significantly, we discovered that the natural compound Nobiletin targeted ZIP8, inhibiting Esophageal squamous cell carcinoma (ESCC) cell growth in vitro and in vivo. Our findings demonstrate ZIP8 as a potential therapeutic target in ESCC and suggest that promoting ferroptosis through ZIP8 inhibition may represent a novel anti-cancer strategy for ESCC therapy.
铁死亡是一种由铁依赖性磷脂过氧化作用所表征的程序性细胞死亡形式,在食管癌发生发展及其调控机制方面仍知之甚少。通过全面的生物信息学分析,我们确定铁死亡相关途径是食管癌进展的关键介质,其中ZIP8成为关键调控元件。我们观察到食管癌标本中ZIP8显著上调,这与不良临床结果相关。功能研究表明,ZIP8缺失显著减弱体外细胞增殖。机制上,ZIP8表达升高增强了锌依赖性的CREB磷酸化,导致铁死亡抑制因子GPX4上调并抑制这种铁依赖性细胞死亡方式。值得注意的是,我们发现天然化合物诺必特因靶向ZIP8,在体外和体内均抑制食管鳞状细胞癌(ESCC)细胞生长。我们的研究结果表明ZIP8是ESCC的潜在治疗靶点,并提示通过抑制ZIP8促进铁死亡可能代表一种用于ESCC治疗的新型抗癌策略。