NTRK3在上道泌尿癌中表现出一种亲瘤的功能
Lee-Moay Lim1,2,3, Yi-Chen Lee4,5, Ting-Wei Lin1
1Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
The Kaohsiung journal of medical sciences
|April 9, 2024
概括
神经营养受体氨酸激酶3 (NTRK3) 在上道泌尿道癌 (UTUC) 中促进侵略性行为. 较高的NTRK3表达与较差的患者存活率相关,并通过AKT-mTOR通路促进癌细胞迁移和入侵.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 神经营养受体氨酸激酶3 (NTRK3) 已知作为瘤基因和瘤抑制剂的作用,但其在上道尿路细胞癌 (UTUC) 中的功能尚不清楚.
- 了解NTRK3在UTUC中的作用对于开发向疗法和改善患者治疗结果至关重要.
研究的目的:
- 调查NTRK3表达和UTUC患者的临床结果之间的关联.
- 阐明NTRK3在UTUC进展中的作用背后的分子机制,重点关注细胞迁移,入侵和信号通路.
主要方法:
- 在118个UTUC组织样本中评估了NTRK3表达.
- 用Kaplan-Meier估计和Cox回归模型进行生存分析.
- 在UTUC细胞系 (BFTC909,UM-UC-14) 进行了Ingenuity路径分析和进行基因操纵 (shRNA,过度表达),以评估路径活性和细胞行为.
主要成果:
- 在UTUC患者中,较高的NTRK3表达与较差的无进展生存率,癌症特异性生存率和整体生存率显著相关.
- NTRK3与PI3K-AKT-mTOR信号通路进行相互作用.
- 降低NTRK3的调节减少了迁移,入侵和AKT-mTOR通路活性,而过度表达增强了UTUC细胞系中的这些效应.
结论:
- NTRK3表达是UTUC中不良临床结果的潜在预测因素.
- 通过激活AKT-mTOR通路,NTRK3促进了侵略性的UTUC行为,包括细胞迁移和入侵.
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