佩普蒂多米克揭示了在差异化甲状腺癌中,希斯和附件A1的明显的乙化模式
Margarida Coelho1,2,3,4, João Capela5, Vera M Mendes1,2,3
1CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal.
International journal of molecular sciences
|January 11, 2024
概括
研究人员通过分析结节活检,确定了甲状腺癌的新生物标志物. 蛋白质组学和组学在恶性样本中显示了增高的附录素A1和乙化组织蛋白,提高了诊断准确度.
科学领域:
- 内分泌学 在内分泌学.
- 在瘤学瘤学.
- 生物化学 生物化学
背景情况:
- 甲状腺癌的诊断依赖于细针吸收活检 (FNAB),这在区分良性和恶性毛囊病变方面存在局限性.
- 提高甲状腺结节的诊断准确性需要新的生物标志物.
研究的目的:
- 发现甲状腺癌恶性瘤的新蛋白质和生物标志物.
- 调查结合蛋白质组学和基组学的实用性,以提高诊断能力.
主要方法:
- 甲状腺结节活检经过了分离后的蛋白质组和基组概况.
- 分析的重点是识别恶性与良性样本中的差异表达蛋白和乙化.
主要成果:
- 附录素A1被确定为潜在的恶性瘤生物标志物,在恶性甲状腺癌样本中水平增加.
- 在恶性组织中发现了升高的乙化附件A1和特定的乙化组织.
- 两种乙化组织表明了恶性瘤的高预测值 (ROC AUC > 0.95).
结论:
- 结合蛋白质组学和基组学方法提高了恶性甲状腺病变的检测.
- 过高的乙化组素表明甲状腺癌中基因转录活性较高.
- 皮体概况分析为癌症生物标志物发现中的传统蛋白质组学提供了补充的见解.
相关概念视频
Histone Modification
13.3K
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...
13.3K
Spreading of Chromatin Modifications
8.3K
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...
8.3K


