表观遗传修饰剂作为真菌中生物活性二次代谢物的诱导剂
Vishal Sharma1,2, Shivali Panjgotra3, Nisha Sharma1,4
1Fermentation & Microbial Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, India.
Biotechnology letters
|April 12, 2024
概括
科学家们正在探索表观遗传修饰剂,以从真菌中释放新的药物化合物. 这种方法旨在发现新的代谢物,并增加现有代谢物的生产,以对抗耐药性和疾病.
科学领域:
- 微生物学 微生物学
- 生物化学 生物化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 微生物,特别是真菌,是各种化学化合物的丰富来源,具有重要的生物功能.
- 发现新的代谢物对药物发现至关重要,特别是鉴于抗菌素耐药性增加和新出现的疾病.
- 传统的真菌培养方法已经产生了大多数已知的化合物,需要新的方法来发现新的分子.
研究的目的:
- 调查使用表观遗传修饰剂以刺激真菌产生的药理学相关的二次代谢产物的潜力.
- 探索表观遗传修饰如何增强新化合物的发现,并增加已知的药物的产量从真菌来源.
主要方法:
- 用表观遗传修饰剂治疗真菌菌株.
- 分析了基因表达的变化和二次代谢物概况.
- 这项研究的重点是改变染色质状态 (从异性染色质转变为欧性染色质),而不会改变基因组.
主要成果:
- 研究表明表观遗传修饰剂会影响真菌中的基因表达模式.
- 治疗导致休眠基因集群的激活,这表明有可能产生新的代谢物.
- 初步数据表明二次代谢组发生了转变,有可能发现新的生物活性化合物.
结论:
- 表观遗传修饰是增强真菌二次代谢物发现和生产的有希望的策略.
- 这种方法可以帮助克服传统方法的局限性,并解决对抗耐药病原体和新型疾病的新药的需求.
- 需要进一步的研究,以充分阐明机制,并优化表观遗传修饰剂在药物发现中的应用.
更多相关视频
相关概念视频
Epigenetic Regulation
3.0K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
3.0K
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
Regulation of Metabolism
9.4K
Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
9.4K
Phase II Reactions: Methylation Reactions
181
Methylation is a phase II biotransformation process involving the attachment of a methyl group to a substrate. Enzymes known as methyltransferases orchestrate this reaction.
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
181
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


