Lee Jaewang, Seo Youngin, Roh Jong-Lyel
Department of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam 13488, Republic of Korea.
Logsynk, Seoul 06153, Republic of Korea.
Antioxidants (Basel). 2025 Aug 13;14(8):993. doi: 10.3390/antiox14080993.
Ferroptosis is an iron-dependent form of regulated cell death marked by lipid peroxidation in polyunsaturated phospholipids. In head and neck cancer (HNC), where resistance to chemotherapy and immunotherapy is common, ferroptosis offers a mechanistically distinct strategy to overcome therapeutic failure. However, cancer cells often evade ferroptosis via activation of nuclear factor erythroid 2-related factor 2 (Nrf2), a key regulator of antioxidant and iron-regulatory genes. HNC remains therapeutically challenging due to therapy resistance driven by redox adaptation. This review highlights the ferroptosis pathway-a form of regulated necrosis driven by iron and lipid peroxidation-and its regulation by Nrf2, a master antioxidant transcription factor. We detail how Nrf2 contributes to ferroptosis evasion in HNC and summarize emerging preclinical studies targeting this axis. The review aims to synthesize molecular insights and propose therapeutic perspectives for overcoming resistance in HNC by modulating Nrf2-ferroptosis signaling. We conducted a structured narrative review of the literature using PubMed databases. Relevant studies from 2015 to 2025 focusing on ferroptosis, Nrf2 signaling, and head and neck cancer were selected based on their experimental design, novelty, and relevance to clinical resistance mechanisms. In HNC, Nrf2 mediates resistance through transcriptional upregulation of GPX4 and SLC7A11, epigenetic stabilization by PRMT4 and ALKBH5, and activation by FGF5 and platelet-derived extracellular vesicles. Epstein-Barr virus (EBV) infection also enhances Nrf2 signaling in nasopharyngeal carcinoma. More recently, loss-of-function KEAP1 mutations have been linked to persistent Nrf2 activation and upregulation of NQO1, which confer resistance to both ferroptosis and immune checkpoint therapy. Targeting NQO1 in KEAP1-deficient models restores ferroptosis and reactivates antitumor immunity. Additionally, the natural alkaloid trigonelline has shown promise in reversing Nrf2-mediated ferroptosis resistance in cisplatin-refractory tumors. Pharmacologic agents such as auranofin, fucoxanthin, carnosic acid, and disulfiram/copper complexes have demonstrated efficacy in sensitizing HNC to ferroptosis by disrupting the Nrf2 axis. This review summarizes emerging mechanisms of ferroptosis evasion and highlights therapeutic strategies targeting the Nrf2-ferroptosis network. Integrating ferroptosis inducers with immune and chemotherapeutic approaches may provide new opportunities for overcoming resistance in head and neck malignancies.
铁死亡是一种铁依赖性的程序性细胞死亡形式,其特征是多不饱和磷脂中的脂质过氧化。在头颈癌(HNC)中,化疗和免疫治疗耐药很常见,铁死亡提供了一种机制上不同的策略来克服治疗失败。然而,癌细胞常常通过激活核因子红细胞2相关因子2(Nrf2)来逃避铁死亡,Nrf2是抗氧化和铁调节基因的关键调节因子。由于氧化还原适应导致的治疗耐药性,HNC在治疗上仍然具有挑战性。本综述重点介绍了铁死亡途径——一种由铁和脂质过氧化驱动的程序性坏死形式——及其由主要抗氧化转录因子Nrf2进行的调节。我们详细阐述了Nrf2如何在HNC中促成铁死亡逃避,并总结了针对这一轴的新兴临床前研究。本综述旨在综合分子见解,并通过调节Nrf2-铁死亡信号提出克服HNC耐药性的治疗观点。我们使用PubMed数据库对文献进行了结构化叙述性综述。根据实验设计、新颖性以及与临床耐药机制的相关性,选择了2015年至2025年期间聚焦于铁死亡、Nrf2信号传导和头颈癌的相关研究。在HNC中,Nrf2通过转录上调GPX4和SLC7A11、PRMT4和ALKBH5的表观遗传稳定作用以及FGF5和血小板衍生的细胞外囊泡的激活来介导耐药性。爱泼斯坦-巴尔病毒(EBV)感染也会增强鼻咽癌中的Nrf2信号传导。最近,功能缺失的KEAP1突变与持续的Nrf2激活和NQO1上调有关,这赋予了对铁死亡和免疫检查点治疗的耐药性。在KEAP1缺陷模型中靶向NQO1可恢复铁死亡并重新激活抗肿瘤免疫。此外,天然生物碱胡芦巴碱在逆转顺铂难治性肿瘤中Nrf2介导的铁死亡耐药性方面显示出前景。诸如金诺芬、岩藻黄质、肌醇六磷酸和二硫代氨基甲酸盐/铜络合物等药物制剂已证明通过破坏Nrf2轴使HNC对铁死亡敏感有效。本综述总结了铁死亡逃避的新兴机制,并强调了针对Nrf2-铁死亡网络的治疗策略。将铁死亡诱导剂与免疫和化疗方法相结合可能为克服头颈恶性肿瘤的耐药性提供新机会。