在老化前列腺上皮质中,Endo180和底层膜刚度会诱导OXPHOS和瘤转变
Lucia Pastro1, Jennyfer Martínez2, Santiago Fontenla1
1Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
npj aging
|August 2, 2025
概括
前列腺老化会使底层膜变硬,激活Endo180并促进癌症生长. 这种与氧化酸化相关的生物机械开关,可以从侵袭性前列腺癌中早期区分出来,帮助诊断.
科学领域:
- 生物化学 生物化学
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 前列腺衰老涉及通过先进的糖化最终产品对原-IV进行修饰,导致底层膜交叉连接.
- 由Endo180感知到的底层膜硬性会破坏抑制器综合体,可能会触发上皮细胞转变为介质细胞,并影响前列腺癌患者的生存率.
研究的目的:
- 研究底层膜硬度和Endo180在前列腺癌进展中的合作作用.
- 识别导致与年龄相关的新生病和侵袭性癌症的生物力学事件.
- 探索Endo180作为腺癌诊断标记物的潜力.
主要方法:
- 在前列腺组织中分析底层膜刚度和Endo180表达.
- 研究Endo180,CD147和线粒体氧化酸化 (OXPHOS) 之间的关系.
- Endo180水平与患者年龄和格里森瘤等级的相关性.
主要成果:
- 基底膜刚性和Endo180重新连接上皮质,促进OXPHOS,增殖和抵抗细胞死亡,而不会影响基因组的不稳定性.
- 在格里森6型瘤中,Endo180-CD147复合体与OXPHOS结合;在格里森≥7型瘤中,Endo180与CD147-OXPHOS脱,表明侵袭性癌症的生物开关.
- 在正常和低度瘤中,endo180与患者年龄相关,这表明生物年龄会影响其在瘤发生中的作用.
结论:
- 底层膜硬性和Endo180代表了与年龄相关的前列腺瘤中的非致癌生物机械事件.
- Endo180与CD147-OXPHOS的分离可以作为侵袭性前列腺癌的生物开关.
- 基于Endo180的诊断可以为与年龄相关的腺癌的治疗决策提供信息,从而有可能改善患者的治疗结果.
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