血管生成的表观遗传调节及其治疗方法
1BK21 FOUR KNU Creative BioResearch Group, School of Life Science and Biotechnology, Kyungpook National University, Daegu, Korea. dongkyu@knu.ac.kr.
Genomics & informatics
|February 11, 2025
概括
表观遗传修饰调节血管形成 (血管生成),影响癌症等疾病. 表观遗传药物为控制异常血管生成和相关疾病提供了新的治疗策略.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 血管新生对于正常过程至关重要,但在癌症和糖尿病视网膜病变等疾病中失调.
- 表观遗传修饰 (DNA甲基化,基因组修饰,非编码RNA) 控制血管性基因表达,没有改变DNA序列.
- 这些修改平衡了亲血管性和抗血管性因素,影响了内皮细胞的行为.
研究的目的:
- 审查表观遗传调节在血管生成中的作用.
- 突出表观遗传修饰在血管生成相关疾病中的关键机制和治疗应用.
- 探索表观遗传药物在新型临床干预中的潜力.
主要方法:
- 对现有的关于表观遗传机制和血管生成的文献进行审查.
- 对针对血管生成的表观遗传药物的临床前数据的分析.
- 讨论涉及DNA甲基转移酶抑制剂,胰岛素脱乙酶抑制剂,BET抑制剂和miRNA调节器的治疗策略.
主要成果:
- 表观遗传修饰精确调节血管性基因表达.
- 表观遗传药物 (例如,阿扎西提丁,伏利诺斯塔特,JQ1) 调节基因表达以准异常血管生成.
- 在临床前模型中,miRNA调节器在调节血管生成相关途径方面表现有前途.
结论:
- 表观遗传调节在血管生成中起着至关重要的作用.
- 表观遗传药物代表了血管生成相关疾病的有希望的治疗途径.
- 进一步了解这些机制将推动针对性表观遗传疗法的开发.
相关概念视频
Regulation of Angiogenesis and Blood Supply
2.5K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.5K
Mechanism of Angiogenesis
5.2K
Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
5.2K
Mitogens and the Cell Cycle
6.4K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.4K
Epigenetic Regulation
30.9K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
30.9K
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
Regulation of Hematopoietic Stem Cells
3.1K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.1K


