铁死亡抑制蛋白1(FSP1)-辅酶Q10(CoQ10)和二氢乳清酸脱氢酶(DHODH)双通路在肝细胞癌铁死亡中的作用及其临床意义
DOI: 10.12449/JCH260331
Dual ferroptosis suppressor protein 1-coenzyme Q10 and dihydroorotate dehydrogenase pathways in ferroptosis of hepatocellular carcinoma: Mechanisms and its clinical significance
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摘要: 肝细胞癌(HCC)是全球常见且致死率高的恶性肿瘤,患者总体生存获益有限、耐药问题突出,亟需新的增敏策略和分层体系。铁死亡是一种铁依赖的脂质过氧化细胞死亡形式,与肿瘤治疗反应密切相关。除经典的谷胱甘肽过氧化物酶4(GPX4)/谷胱甘肽(GSH)通路外,铁死亡抑制蛋白1(FSP1)-辅酶Q10(CoQ10)和二氢乳清酸脱氢酶(DHODH)是两条新的抗铁死亡通路,分别在质膜和线粒体发挥作用,与GPX4协同决定细胞对铁死亡的敏感性。本文系统综述了FSP1-CoQ10和DHODH通路在HCC中的作用机制与研究进展,并提出相关治疗策略以及展望其临床转化应用前景。Abstract: Hepatocellular carcinoma (HCC) is a common malignant tumor with a high fatality rate worldwide, with limited overall survival benefits and pronounced drug resistance issues, highlighting the urgent need for novel sensitization strategies and patient stratification systems. Ferroptosis, as an iron-dependent form of lipid peroxidation-driven cell death, is closely associated with tumor treatment responses. In addition to the classic glutathione peroxidase 4 (GPX4)/glutathione (GSH) pathway, the ferroptosis suppressor protein 1 (FSP1)-coenzyme Q10 (CoQ10) pathways and the dihydroorotate dehydrogenase (DHODH) pathway are two newly identified anti-ferroptosis pathways that function at the plasma membrane and mitochondria, respectively, and determine cellular sensitivity to ferroptosis in synergy with GPX4. This article systematically reviews the mechanism of action of the FSP1-CoQ10 and DHODH pathways in HCC and related research advances, proposes related therapeutic strategies, and look forward to its clinical translation and application prospects.
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Key words:
- Carcinoma, Hepatocellular /
- Ferroptosis /
- Signal Transduction /
- Pathologic Processes /
- Therapeutics
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注: DHODH,二氢乳清酸脱氢酶;DHO,二氢乳清酸;Orotate,乳清酸根;CoQ/CoQH2,辅酶Q/泛醌醇;System Xc⁻,胱氨酸/谷氨酸反向转运系统;GSH,谷胱甘肽;LOOH,脂质过氧化物;GPX4,谷胱甘肽过氧化物酶4;TRIM54/21,含三联结构域蛋白54/21;lncFAL,铁死亡相关长链非编码RNA;Keap1/Nrf2,Kelch样ECH相关蛋白1/核因子E2相关因子2;MVA,甲羟戊酸;FSP1,铁死亡抑制蛋白1;AIFM2,凋亡诱导因子线粒体相关蛋白2;NAD(P)H,还原型烟酰胺腺嘌呤二核苷酸;FGFR4,成纤维生长因子受体4;MHC-Ⅰ,主要组织相容性复合体Ⅰ类分子;ACSL4/LPCAT3,长链脂酰辅酶A合成酶4/溶血磷脂酰胆碱酰基转移酶3;PUFA-PL,多不饱和脂肪酸磷脂;MDA/4-HNE/C11-BODIPY,丙二醛/4-羟基壬烯醛/C11-BODIPY探针。
图 1 FSP1-CoQ10与DHODH双通路在肝细胞癌铁死亡中的作用机制与转化策略
Figure 1. Dual-pathway mechanism and translational strategy of FSP1-CoQ10 and DHODH in ferroptosis of HCC
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