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第45卷第2期 南京医科大学学报(自然科学版)
2025年2月 Journal of Nanjing Medical University(Natural Sciences) ·157 ·
·基础研究·
膜联蛋白ANXA5调节黑色素瘤细胞铁死亡及其机制研究
王嘉慧,李璐琪,张 悦,张肖文,张 晶 *
南京大学生命科学学院,江苏 南京 210023
[摘 要] 目的:探究黑色素瘤中膜联蛋白 A5(annexinA5,ANXA5)表达与铁死亡的相关性。方法:利用 The Human Protein
Atlas数据分析ANXA5在黑色素瘤中的表达情况,并采用人黑素瘤组织芯片进行免疫组化验证,再以黑色素瘤细胞B16F10为
研究对象,通过 CRISPR⁃Cas9 技术构建 ANXA5 敲除株,通过 CCK⁃8 及乳酸脱氢酶(lactate dehydrogenase,LDH)检测敲除
ANXA5对B16F10铁死亡效应的影响,进一步通过RNA⁃seq寻找ANXA5调节铁死亡可能的靶分子并验证,最后在不同的黑色
素瘤细胞中检测内源性ANXA5表达水平,并确认ANXA5对铁死亡敏感性的调节作用。结果:ANXA5在黑色素瘤组织中异常
高表达,敲除或敲低ANXA5能促进黑色素瘤细胞对铁死亡的敏感性。酰基辅酶A合成酶长链家族成员4(acyl⁃CoA synthetase
long⁃chain family member 4,ACSL4)作为铁死亡关键调节分子,与ANXA5表达呈负相关性,过表达ANXA5能降低ACSL4水平,
表现出对铁死亡的抵抗性。结论:在黑色素瘤细胞中,敲低ANXA5能够上调ACSL4水平,增强黑色瘤细胞对铁死亡的敏感性,
提示ANXA5有望成为黑色素瘤铁死亡治疗的潜在靶点。
[关键词] 黑色素瘤;铁死亡;膜联蛋白A5;ASCL4
[中图分类号] R739.5 [文献标志码] A [文章编号] 1007⁃4368(2025)02⁃157⁃08
doi:10.7655/NYDXBNSN240844
Mechanisms of annexin A5 regulating ferroptosis sensitivity in melanoma cells
*
WANG Jiahui,LI Luqi,ZHANG Yue,ZHANG Xiaowen,ZHANG Jing
School of Life Sciences,Nanjing University,Nanjing 210023,China
[Abstract] Objective:To explore the correlation between the expression of annexin A5(ANXA5)and ferroptosis in melanoma.
Methods:The expression of ANXA5 in melanoma was analyzed using The Human Protein Atlas data and further validated by
immunohistochemistry on a human melanoma tissue microarray. The B16F10 melanoma cell line was used as the research model,
where ANXA5 knockout cell lines were generated using CRISPR⁃Cas9 technology. The effect of ANXA5 knockout on ferroptosis in
B16F10 cells was assessed using CCK⁃8 and lactate dehydrogenase(LDH)assays. RNA⁃seq was further performed to identify the
possible target molecules of ANXA5 related to ferroptosis,followed by validation. Additionally,the endogenous expression of ANXA5
in different melanoma cell lines was measured to confirm its regulatory role in ferroptosis sensitivity. Results:ANXA5 was aberrantly
overexpressed in melanoma tissues,and knockingdown or knockingout ANXA5 promoted the sensitivity to ferroptosis in melanoma
cells. Acyl⁃CoA synthetase long⁃chain family member 4(ACSL4)as a key regulator of ferroptosis,was negatively correlated with
ANXA5 expression. Overexpression of ANXA5 reduced the level of ACSL4 and showed resistance to ferroptosis. Conclusion:In
melanoma cells,downregulation of ANXA5 enhanced the sensitivity to ferroptosis via upregulating ACSL4,suggesting that ANXA5
may be a potential target of ferroptosis⁃based therapy in melanoma.
[Key words] melanoma;ferroptosis;annexin A5;ASCL4
[J Nanjing Med Univ,2025,45(02):157⁃164]
黑色素瘤是皮肤癌中死亡率最高的一种恶性
[基金项目] 国家自然科学基金(32250016) 肿瘤,尤其是转移性黑色素瘤,临床治疗效果很差,
5年生存率仅为10%,对传统的放疗、化疗以及免疫
∗
通信作者(Corresponding author),E⁃mail:jzhang08@nju.edu.cn
(ORCID:0000-0003-3733-8104) 调节药物的抵抗性强,寻找治疗黑色素瘤转移的新

