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Updated: Jun 25, 2025

Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics

Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics

Published on: March 15, 2024

外基因源的circUPF2通过重新部署肝细胞癌中的ferroptosis敏感性来增强对向治疗的耐药性

Feng-Lin Dong^1,2, Zong-Zhen Xu¹, Ying-Qiao Wang³

¹Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Shandong Provincial Qianfoshan Hospital, No. 16766, Jingshi Road, Jinan, 250014, China.

Journal of nanobiotechnology

|May 29, 2024

概括

外体circUPF2通过稳定SLC7A11mRNA,抑制铁亡,促进肝细胞癌 (HCC) 中的索拉芬尼抗性. 向外体环UPF2为HCC治疗提供了一个新的治疗策略.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
生物化学生物化学

背景情况:

晚期肝细胞癌 (HCC) 治疗依赖于索拉费尼布,但耐药性限制了疗效.
外体和圆形RNA与癌症进展有关,但它们在HCC索拉芬尼布耐药性中的作用尚不清楚.

研究的目的:

调查外体循环RNAs在HCC. sorafenib耐药性的发展中的作用.
阐明外体circUPF2在介导HCC耐药性的基础分子机制.

主要方法:

从抗索拉尼布的HCC细胞中分离出外体 (Exo-SR).
转录组测序以识别差异表达的基因和外体标.
功能增益和丧失实验,以评估circUPF2对索拉费尼布耐药性的影响.
RNA下拉,质谱,RIP和FISH测试用于验证分子相互作用.

主要成果:

一种新型的外体 circRNA,circUPF2,被确定并以 Exo-SR.丰富.
外体circUPF2通过促进SLC7A11表达和抑制铁亡来增强索拉芬尼抗性.
CircUPF2通过与IGF2BP2和SLC7A11形成三元复合体来稳定SLC7A11mRNA,从而增强系统Xc-功能.

结论:

外体circUPF2通过circUPF2-IGF2BP2-SLC7A11复合体促进HCC中的索拉芬尼抗性.
向外体环UPF2为HCC提供了一个潜在的创新治疗策略.

关键词:

外体内环RNA 的存在.铁化是铁化的一种.肝细胞癌是肝细胞癌.在 SLC7A1111 中.

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