通过控制AGR2表达,N终端素乙转移酶NAA40调节骨髓瘤的进展
Hanhua Wu1, Hua Xu2, Yunan Man1
1Division of Spinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Shuangyong Road 6, Nanning, Guangxi Zhuang Autonomous Region, 530021, PR China.
Biochemical and biophysical research communications
|February 28, 2025
概括
N-α-乙转移酶40 (NAA40) 通过表观遗传调节前梯度2 (AGR2) 表达,促进骨髓瘤 (OS) 的生长和转移. 针对NAA40可能为OS患者提供新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 骨髓瘤 (OS) 是儿童和青少年的一种主要骨癌,由于复发和转移,其死亡率很高.
- 驱动OS进展和转移的分子机制尚未完全理解.
- 在OS中N-α-乙转移酶40 (NAA40) 的作用仍然未被探索.
研究的目的:
- 研究NAA40在骨髓瘤 (OS) 进展和转移中的作用和分子机制.
- 评估OS患者数据中的NAA40表达及其与生存的相关性.
- 在OS中确定NAA40的下游目标和监管途径.
主要方法:
- 对操作系统数据集 (GEO,TARGET) 的生物信息学分析.
- 在体外测定:CCK8,EdU,Transwell测定细胞活力,增殖,迁移和入侵.
- 分子技术:RT-qPCR,ChIP-qPCR,双光酶记者测定和救援实验.
- 在体内动物模型以确认发现.
主要成果:
- 在OS组织中,NAA40的表达被上调,并与较差的患者存活率有关.
- NAA40的耗尽减少了OS细胞的活力,迁移和入侵.
- NAA40通过改变AGR2促进体的组素标记来表观基因调节前梯度2 (AGR2) 的表达.
- AGR2被确定为NAA40的下游目标,其淘汰的副本是NAA40枯竭效应.
- 在体内研究证实NAA40抑制降低了AGR2水平,抑制了OS瘤生长和转移.
结论:
- NAA40在骨髓瘤的发展和进展中起着至关重要的作用.
- 通过表观遗传调节AGR2表达,NAA40促进OS.
- 向NAA40可能是骨髓瘤的潜在治疗策略.
相关概念视频
02:32Histone Modification
13.0K
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...
13.0K
02:25Spreading of Chromatin Modifications
8.2K
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...
8.2K
03:03mTOR Signaling and Cancer Progression
3.7K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.7K
02:23Abnormal Proliferation
4.4K
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...
4.4K
02:04Co-activators and Co-repressors
7.2K
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
7.2K