基因素修饰剂KANSL2是多发性骨髓瘤中可操作的生物标志物
Kaiting Jiang1, Marieluise Kirchner2, Frederik Herzberg1
1Charité - Universitätsmedizin Berlin, Berlin, Germany.
Molecular cancer therapeutics
|November 26, 2025
概括
多发性骨髓瘤 (MM) 细胞依赖KANSL2来应对压力. 用特定的表观遗传药物向KANSL2显示出在MM患者中克服化疗耐药性的希望.
科学领域:
- 在瘤学瘤学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 表观遗传改变在多发性骨髓瘤 (MM) 发病过程中至关重要.
- 缺乏基于表观遗传修饰的MM的向治疗方法.
- 确定MM中的新瘤基因和治疗点是必不可少的.
研究的目的:
- 在多发性骨髓瘤中识别新的表观遗传点.
- 调查KAT8监管NSL复合体子单元2 (KANSL2) 在MM中的作用.
- 评估KANSL2作为MM的潜在治疗生物标志物.
主要方法:
- 临床和分子MM患者数据的整合.
- 没有偏见的基因体内查.
- 功能模型的遗传收益和损失.
- 转录基因组学,蛋白质组学和定量性乙基因组分析.
- 在患者样本中的ex vivo药物反应概况.
主要成果:
- KANSL2被确定为与不良MM预后相关的候选瘤基因.
- KANSL2 赋予了对基因毒性压力的保护.
- 确定了一个KANSL2依赖的分子程序,可通过乙化修饰剂向.
- 高KANSL2表达与增加对HDAC和BET抑制剂的敏感性相关.
- 在患者样本中,KANSL2表达预测了这些抑制剂对选择性MM细胞的杀死.
结论:
- 在多发性骨髓瘤中,KANSL2是化疗耐药性的调解者.
- KANSL2作为一种可操作的生物标志物,用于对表观遗传疗法的反应.
- 针对KANSL2依赖的表观遗传程序为MM提供了一个新的治疗策略.
相关概念视频
Histone Variants at the Centromere
4.9K
Histone variants are the histone proteins with structural and sequence variations. These variants may be regarded as “mutant” forms that replace their canonical histone counterparts in the nucleosomes. Specific post-translational modifications on the histone variants enable further chromatin complexity and regulate tissue-specific gene expression. The most common histone variants are from histone H2A, H2B, and linker histone H1 families. However, several variants of histone H3...
4.9K
Abnormal Proliferation
5.1K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.1K
Histone Modification
15.9K
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
15.9K
Histone Modification
4.3K
4.3K
Spreading of Chromatin Modifications
9.3K
The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
Writers
The writer...
Writers
The writer...
9.3K


