通过ACSL4介导的H3K9和H3K27过乙化调节SNAIL以驱动TNBC转移
Abhipsa Sinha1, Krishan Kumar Saini1,2, Aakash Chandramouli3
1Division of Cancer Biology, Council of Scientific & Industrial Research-Central Drug Research Institute, Lucknow 226031, India.
概括
向乙-CoA合成酶4 (ACSL4) 可以减少三阴性乳腺癌 (TNBC) 的转移. 这种代谢酶通过改变基因表达和表观遗传标记来驱动TNBC的传播,提供了一个新的治疗点.
科学领域:
- 在瘤学瘤学.
- 代谢研究研究 代谢研究
- 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:
- 三阴性乳腺癌 (TNBC) 由于其侵袭性转移和有限的向疗法,因此存在重大未满足的医疗需求.
- 脂质代谢,特别是脂肪酸氧化 (FAO),越来越被认为是癌细胞转移的关键驱动因素.
- 乙-A合成酶4 (ACSL4) 被确定为癌症中代谢重编程的关键调节器.
研究的目的:
- 调查乙基-CoA合成酶4 (ACSL4) 在三阴性乳腺癌 (TNBC) 转移中的作用.
- 阐明 ACSL4 影响 TNBC 细胞迁移,入侵和转移传播的分子机制.
- 探索针对ACSL4作为TNBC治疗策略的潜力.
主要方法:
- 对乳腺癌组织中粮农组织调控基因表达的分析.
- 在TNBC模型中,ACSL4的基因切除和药理抑制.
- 全球转录组分析以评估基因表达变化.
- 评估基因素乙化标志 (H3K9ac,H3K27ac) 和SNAIL表达.
- 在人类TNBC转移中对ACSL4,表观遗传标记和SNAIL的相关性分析.
主要成果:
- 在TNBC中,ACSL4被选择性地过度表达,与孕激素受体的缺失相关.
- 失去了ACSL4功能显著损害了TNBC转移潜力.
- ACSL4通过调节FAO和乙-CoA水平来促进TNBC的迁移和入侵.
- 由ACSL4驱动的H3K9ac和H3K27ac的过乙化导致SNAIL过度表达,促进转移.
- 在人类TNBC转移中,ACSL4,H3K9ac,H3K27ac和SNAIL之间存在正相关性.
结论:
- 通过一种涉及代谢重编程和表观遗传修改的机制,ACSL4在编排TNBC转移中发挥着关键作用.
- 准ACSL4是一个有前途的治疗途径,用于对抗TNBC转移.
- 了解TNBC代谢和表观遗传学的相互作用,为开发新型抗转移疗法提供了合理的基础.
相关概念视频
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
lncRNA - Long Non-coding RNAs
8.5K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.5K
Spreading 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
Abnormal 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
Histone 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


