在表观遗传疗法中降解剂:PROTACs和超越
Xing-Jie Dai1, Shi-Kun Ji1, Meng-Jie Fu1
1Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, China; State Key Laboratory of Esophageal Cancer Prevention & Treatment; Key Laboratory of Henan Province for Drug Quality and Evaluation; Institute of Drug Discovery and Development; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China.
Theranostics
|February 23, 2024
概括
向蛋白降解 (TPD) 提供了针对癌症治疗的表观遗传蛋白的新方法. 本综述探讨了超越PROTACs的小分子降解剂,强调了它们的潜力和挑战.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 表观遗传学影响基因表达而不改变DNA序列,使其成为治疗癌症等疾病的关键目标.
- 现有的表观遗传药物面临的局限性包括狭窄的适用性,毒性和耐药性.
- 包括PROTAC在内的向蛋白降解 (TPD) 策略已取得显著进展.
研究的目的:
- 对表观遗传蛋白质标的小分子降解剂进行审查,超越PROTACs.
- 通过蛋白质体或溶酶体路径探索降解机制.
- 讨论在开发表观遗传药物的当前挑战和未来前景.
主要方法:
- 针对针对表观遗传蛋白质的小分子降解剂的综合文献综述.
- 除了PROTAC之外的各种TPD策略的分析 (例如分子,dTAG).
- 对表观遗传点的蛋白质和溶酶体降解途径的检查.
主要成果:
- 小分子降解剂提供了针对表观遗传蛋白的替代方法,包括代蛋白,基因素乙化/脱乙化和甲基化点.
- 这些降解剂利用蛋白质或 lysosomal 途径去除蛋白质.
- 该审查强调了除了PROTAC之外的各种TPD策略.
结论:
- 小分子降解剂代表了开发新型表观遗传疗法的有希望的前沿.
- 克服强度,选择性和药物相似性的挑战对于临床翻译至关重要.
- 对TPD机制的进一步研究可以导致更有效的表观遗传药物.
相关概念视频
Methods of Nuclear Reprogramming
1.8K
Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for...
1.8K
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
Regulated Protein Degradation
2.5K
2.5K
Forced Transdifferentiation
1.9K
Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial...
Artificial...
1.9K
Chromatin Modification in iPS Cells
1.7K
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...
1.7K
Somatic to iPS Cell Reprogramming
2.2K
Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012...
2.2K


