PP4R1通过上调HSPA6表达和HSPA6介导的ER应激加速NSCLC的恶性进展
Xunxia Zhu1, Xiaoyu Chen1, Xiaoyong Shen1
1Department of Thoracic Surgery, Affiliated Huadong Hospital, Fudan University, Shanghai, China.
Biochimica et biophysica acta. Molecular cell research
|September 22, 2023
概括
蛋白酸酶4调节子单元1 (PP4R1) 通过上调HSPA6和激活内质网膜应激促进非小细胞肺癌 (NSCLC) 的进展. 这一发现为NSCLC的发展和潜在的治疗点提供了新的见解.
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:
- 蛋白酸酶4 (PP4) 在瘤发育中至关重要.
- 在肺癌中PP4的调节子单元1 (PP4R1) 的具体作用尚不清楚.
- 非小细胞肺癌 (NSCLC) 是一个主要的全球健康问题.
研究的目的:
- 研究PP4R1在非小细胞肺癌 (NSCLC) 发展中的功能和机制.
- 分析PP4R1在NSCLC患者中的临床意义.
- 阐明NSCLC中PP4R1调节的分子通路.
主要方法:
- 使用UALCAN对临床相关性进行TCGA数据库分析.
- 在体外细胞实验中评估繁殖,殖民地生长,迁移和入侵.
- 在体内动物模型中评估瘤生长和转移.
- 生物信息学分析包括RNA测序和基因丰富分析.
主要成果:
- PP4R1 mRNA过度表达与NSCLC的预后不佳相关.
- PP4R1过度表达增强NSCLC细胞的增殖,迁移,入侵和瘤生长 in vivo.
- PP4R1上调节热冲击蛋白70 (HSP70) 家族基因,特别是HSPA6.
- 过度表达的HSPA6模仿了PP4R1的瘤效应,并激活了内质网膜 (ER) 的压力.
结论:
- PP4R1驱动NSCLC的恶性进展.
- PP4R1通过上调HSPA6表达来发挥其作用.
- PP4R1-HSPA6轴激活了内分泌网膜应激,有助于NSCLC的致病性.
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