通过HMGB1/SET/HAT1复合体介导的SASH1抑制驱动肺腺癌的葡萄糖分解和转移
Fan Kou1,2,3,4,5, Lei Wu1,2,3,4,6, Yu Zheng2,3,7
1Department of Immunology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China.
Oncogene
|October 4, 2023
概括
高流动性组盒子1 (HMGB1) 通过增强糖解和转移促进肺腺癌 (LUAD) 的进展. 这种蛋白质复合物抑制了基因组乙化,抑制了瘤抑制基因并恶化了患者的结果.
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:
- 高流动性组框1 (HMGB1) 与瘤发生和癌症进展有关.
- HMGB1在调节肺腺癌 (LUAD) 糖解和转移中的作用仍然基本未知.
研究的目的:
- 阐明HMGB1在LUAD中调节糖解和转移中的功能和机制.
- 调查HMGB1表达和LUAD患者的临床结果之间的相关性.
主要方法:
- 在LUAD标本中分析HMGB1表达和与瘤等级和存活率的相关性.
- 调查HMGB1与SET和HAT1的相互作用,形成一个复杂的.
- 对复合物对基因素乙化 (H3K9和H3K27) 和SASH1表达的作用的评估.
- 在体外和体内研究以评估对糖解和转移的影响.
- 在LUAD标本中对HMGB1,SET,HAT1,SASH1和GLUT1表达的相关性分析.
主要成果:
- 细胞内HMGB1在LUAD上调,与较高的瘤等级和较差的存活率相关.
- HMGB1与SET和HAT1形成一个复合体,抑制H3K9和H3K27的乙化.
- 这种复合物抑制了SASH1的表达,促进了体外和体内葡萄糖分解和转移.
- 在SASH1表达与HMGB1和SET相反相关,在LUAD中与HAT1正相关.
- 高HMGB1和低SASH1表达预测了LUAD患者的最糟糕的临床结果.
结论:
- HMGB1在促进LUAD糖解和转移方面发挥着至关重要的作用.
- HMGB1/SET/HAT1复合体减弱了H3K9ace和H3K27ace,导致SASH1的表达被抑制.
- 这些发现凸显了HMGB1作为LUAD的潜在治疗点.
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