通过NAA20介导的ACF1乳化驱动神经母细胞瘤的进展,通过增强GCLM依赖的谷氨二合成
Bingqiang Han1, Min Xu2, Qi Wang3
1Department of Pediatric Orthopedics, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
蛋白构成因子1 (ACF1) 通过促进谷氨合成,驱动神经母细胞瘤 (NBL) 的生长和转移. 针对ACF1-NAA20-GCLM通路可能会改善NBL治疗反应.
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:
- 神经母细胞瘤 (NBL) 是一种儿科癌症,在高风险患者中结果不佳.
- 了解NBL进展的分子驱动因素对于开发向疗法至关重要.
研究的目的:
- 为了研究1 (ACF1) 在神经母细胞瘤 (NBL) 进展中的白蛋白构造因子1 (ACF1) 的作用.
- 阐明在NBL中ACF1功能的潜在分子机制.
主要方法:
- 异构和转录组测序被用来分析NBL组织中的ACF1.
- 在体外和体外测试评估了ACF1敲击对NBL细胞和瘤模型的影响.
- 通过RNA测序,ChIP, luciferase,co-IP和免疫光测试探测了分子机制.
- 人类NBL组织微阵列分析了ACF1,GCLM和NAA20表达模式.
主要成果:
- ACF1突变和高表达与先进的NBL分期和不良预后相关.
- 在ACF1中,ACF1 knockdown抑制了NBL细胞的增殖,迁移和体内瘤生长/转移.
- ACF1倒置增加了对西斯普拉丁和辐射的敏感性,增强了亡.
- 抑制ACF1降低了GCLM转录,降低了谷氨 (GSH) 水平.
- 乳酸诱导的ACF1乳化,由NAA20调解,驱动GCLM依赖的GSH合成,促进NBL生长和转移.
结论:
- 通过NAA20介导的ACF1乳化途径通过增强GSH合成来促进NBL的进展.
- 针对ACF1-NAA20-GCLM轴是NBL的一个潜在的治疗策略.
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