葡萄糖溶解诱导异常转录通过T系急性淋巴细胞白血病的希斯乳酸化
Wenyan Wu1, Jingyi Zhang2, Huiying Sun1
1Key Laboratory of Pediatric Hematology & Oncology Ministry of Health, Department of Hematology & Oncology, Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
Genomics, proteomics & bioinformatics
|April 7, 2025
概括
乳酸盐通过改变T-ALL.中的基因表征标记,如基因组母乳化 (H3K18la) 来促进癌症. 这种代谢转变驱动白血病发生并影响基因转录,影响患者的预后.
科学领域:
- 癌症生物学 癌症生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 代谢调节 代谢调节 代谢调节
背景情况:
- 瘤表现出华堡效应 (乳酸盐过量产生) 和转录失调.
- 乳酸在全基因组表观遗传修饰和癌症中的基因转录中的作用仍然在很大程度上是未知的.
研究的目的:
- 为了研究T细胞急性淋巴细胞白血病 (T-ALL) 中全基因组素H3 lysine 18乳化 (H3K18la).
- 了解H3K18la对基因转录的影响及其与T-ALL进展的关联.
主要方法:
- 对T-ALL细胞与正常T细胞的全基因组H3K18la修饰的分析.
- H3K18la水平与细胞增殖和基因转录概况的相关性.
- 调查H3K18la破坏效应,并与H3K27ac修改进行比较.
主要成果:
- T-ALL细胞显示乳酸盐和H3K18la水平增加,与增殖有关.
- H3K18la从正常细胞中的免疫调节转移到T-ALL中的白血病发生.
- H3K18la调节基因转录,形成超强增强器类的群;破坏显示与H3K27ac.的相互作用.
- 高H3K18la目标基因 (IGFBP2,IARS) 转录与T-ALL预后不佳相关.
结论:
- 通过乳酸的代谢失调有助于通过T-ALL.的表观遗传变化转录失调.
- H3K18la是一种关键的表观遗传修饰,将新陈代谢与瘤转录联系起来.
- 了解H3K18la及其与其他基因组修饰的相互作用,可以了解T-ALL病原和潜在的治疗点.
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