UBQLN家族成员在肺腺癌细胞中调节MYC
Parag P Shah1, Levi J Beverly1,2
1James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA.
Cancers
|July 14, 2023
概括
随着ubiquilin-1和ubiquilin-2蛋白质的丧失,癌细胞的生长和迁移通过提高MYC瘤基因水平而增加. 恢复MYC水平可以逆转这些影响,揭示了乌比基林在肺腺癌中的新作用.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 无处不在 (UBQLN) 蛋白质家族包括五个具有相似结构的成员.
- 在癌症进展中的UBQLN1和UBQLN2的功能尚未完全理解.
- MYC是一种已知的瘤基因,与癌症进展和转移有关.
研究的目的:
- 研究UBQLN1和UBQLN2在调节MYC表达中的作用及其对癌症的影响.
- 探索向肺腺癌中的UBQLN-MYC相互作用的潜力.
主要方法:
- 研究了UBQLN1和UBQLN2损失对癌细胞表型的影响.
- 研究了UBQLN1/UBQLN2和化MYC之间的相互作用.
- 利用小鼠模型来评估瘤发生和转移.
- 检查了MYC,细胞循环蛋白和EMT标记物的表达.
主要成果:
- 丢失UBQLN1/UBQLN2增加了细胞活力,增殖,迁移和细胞周期进展,与更高的MYC水平有关.
- UBQLN1和UBQLN2与化MYC相互作用并促进其降解.
- 过度表达UBQLN1在UBQLN2损失后恢复了MYC水平.
- 降低MYC水平逆转了由UBQLN1/UBQLN2损失引起的癌症表型.
- 在小鼠中,UBQLN1损失促进了瘤发生和肺转移,与增加的MYC,细胞周期和EMT标志物有关.
结论:
- UBQLN1和UBQLN2在调节MYC稳定性和降解方面发挥着至关重要的作用.
- UBQLN-MYC轴是肺腺癌中一种新的调节机制.
- 准UBQLN1/UBQLN2或MYC可能为肺癌提供治疗策略.
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