淋巴细胞功能和命运中的染色体重塑:SWI/SNF复合体的多方面的作用
Renjie Miao1, Yun Liu2,3, Shuo Shen1
1Affiliated Third Hospital of Zhenjiang to Jiangsu University, Zhenjiang, Jiangsu, China.
Frontiers in immunology
|May 9, 2025
概括
交换机/非发酵糖 (SWI/SNF) 复合体对于淋巴细胞发育和免疫功能至关重要. 其子单元的损失会损害这些过程,影响疾病并提供治疗点,包括在化学抗原受体技术中.
科学领域:
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
背景情况:
- 交换机/糖非发酵 (SWI/SNF) 复合体对于染色质重塑和基因调节至关重要.
- 这个复合体的子单元对于正常的淋巴细胞分化和免疫反应至关重要.
- SWI/SNF子单元的功能障碍与免疫障碍和血液学疾病有关.
研究的目的:
- 为了研究在淋巴细胞中与SWI/SNF子单元的转录因子相互作用.
- 总结SWI/SNF亚单元损失对淋巴细胞分化,功能和基因表达的影响.
- 探索针对SWI/SNF子单位损失的临床应用,特别是在化学抗原受体 (CAR) 技术中.
主要方法:
- 文献综述侧重于SWI/SNF复杂相互作用与淋巴细胞中的转录因子.
- 分析详细介绍SWI/SNF亚单元损失对淋巴细胞发育和功能影响的研究.
- 检查与SWI/SNF功能障碍相关的治疗策略和CAR技术应用的研究.
主要成果:
- SWI/SNF子单位对于招募复合物以准基因调节区域至关重要.
- 失去特定的SWI/SNF子单元会破坏淋巴细胞分化,损害成熟的淋巴细胞功能,并影响免疫反应.
- 在SWI/SNF亚单元丢失后观察到改变的基因表达模式.
结论:
- SWI/SNF复合体在淋巴细胞生物学中发挥着基本作用,并与血液学疾病和免疫功能障碍有关.
- 了解不同淋巴细胞子集中的特定亚单元的作用,对于推进免疫疗法和个性化医学至关重要.
- 针对SWI/SNF子单元损失提供了潜在的治疗途径,特别是在CAR技术中.
相关概念视频
Nucleosome Remodeling
8.8K
Nucleosomes are the basic units of chromatin compaction. Each nucleosome consists of the DNA bound tightly around a histone core, which makes the DNA inaccessible to DNA binding proteins such as DNA polymerase and RNA polymerase. Hence, the fundamental problem is to ensure access to DNA when appropriate, despite the compact and protective chromatin structure.
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
8.8K
Chromatin Modification in iPS Cells
1.6K
Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
1.6K
Chromatin Position Affects Gene Expression
23.1K
Chromatin is the massive complex of DNA and proteins packaged inside the nucleus. The complexity of chromatin folding and how it is packaged inside the nucleus greatly influences access to genetic information. Generally, the nucleus' periphery is considered transcriptionally repressive, while the cell's interior is considered a transcriptionally active area.
Topologically Associated Domains (TADs)
The 3-dimensional positioning of chromatin in the nucleus influences the...
Topologically Associated Domains (TADs)
The 3-dimensional positioning of chromatin in the nucleus influences the...
23.1K
Inheritance of Chromatin Structures
6.2K
Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying...
6.2K
Chromatin Structure and RNA Splicing
2.7K
2.7K
Chromatin Structure Regulates pre-mRNA Processing
6.8K
In eukaryotic cells, nascent mRNA transcripts need to undergo many post-transcriptional modifications to reach the cell cytoplasm and translate into functional proteins. For a long time, transcription and pre-mRNA processing were considered two independent events that occur sequentially in the cell. However, it has now been well established that transcription and pre-mRNA processing are two simultaneous processes that are precisely regulated inside the cell.
The chromatin structure, especially...
The chromatin structure, especially...
6.8K


