作为天然产品基础的CYP17A1酶抑制剂,用于治疗高雄性乱症的二中
Kaige Li1,2,3, Jibira Yakubu1,2,3, Flemming Steen Jørgensen4
1Pediatric Endocrinology, Diabetology and Metabolism, University Children's Hospital, Inselspital, CH-3010 Bern, Switzerland.
Biomolecules
|January 28, 2026
概括
一种天然化合物二中,可选择性地抑制CYP17A1 17,20-酶,为过高雄激素性疾病提供更安全的方法. 这种选择性抑制节省了皮质醇的产生,与非选择性药物不同.
科学领域:
- 内分泌学 在内分泌学.
- 药理学 药理学是指药理学的学科.
- 自然产品化学 自然产品化学
背景情况:
- 高雄激素性疾病需要选择性抑制雄激素生物合成的治疗方法.
- 像阿比拉这样的非选择性CYP17A1抑制剂会导致皮质醇降低的副作用.
- 来自Salvia miltiorrhiza的tanshinones正在探索针对性的治疗潜力.
研究的目的:
- 为了从tanshinones中识别选择性CYP17A1 17,20-酶抑制剂.
- 为了评估二中 (DT) 与阿比拉的疗效和选择性.
主要方法:
- 生物化学试验被用来测量酶抑制.
- 计算建模预测了结合相互作用.
- 量化了CYP17A1 17,20-酶,CYP17A1 17α-基酶和CYP21A2的抑制作用.
主要成果:
- 在10μM时,二中 (DT) 抑制了17.20-酶活性56.6%.
- DT表现出高选择性,保留了>93%的17α-基酶活性 (选择性指数8.67).
- 与阿比拉 (29.8%) 相比,DT显示了较低的CYP21A2非目标抑制 (14.9%).
结论:
- 二中是一种有力的天然产品,用于选择性雄激素抑制.
- 坦西诺支架为开发更安全的高雄激素乱疗法提供了一个有希望的基础.
- DT独特的结合机制有助于其双重选择性,节省皮质醇生物合成.
相关概念视频
01:29Disorders of Acid-Base Balance
2.0K
The human body maintains a precise pH range of arterial blood between 7.35 and 7.45. Deviations result in either acidosis (pH < 7.35) or alkalosis (pH > 7.45). These conditions are further classified as respiratory or metabolic disorders based on their underlying cause.
Respiratory Acidosis and Alkalosis
Respiratory acidosis occurs due to an increase in the partial pressure of carbon dioxide PCO2 in the blood. It often arises from shallow breathing or impaired gas exchange caused by...
Respiratory Acidosis and Alkalosis
Respiratory acidosis occurs due to an increase in the partial pressure of carbon dioxide PCO2 in the blood. It often arises from shallow breathing or impaired gas exchange caused by...
2.0K
01:52Eukaryotic Transcription Inhibitors
11.0K
Certain biochemical processes, such as embryonic development and cell growth regulation, depend on the repression of specific genes. DNA binding proteins known as eukaryotic transcription inhibitors regulate the repression of gene expression in eukaryotes. The presence of these inhibitors at the required location and time in the cell is triggered by the presence of hormones and additional signals from other cells.
Eukaryotic transcription inhibitors usually contain two distinct domains, a...
Eukaryotic transcription inhibitors usually contain two distinct domains, a...
11.0K
01:32What is Natural Selection?
128.5K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
128.5K
01:10Nature and Nurture
22.3K
Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience,...
22.3K
02:18Intrinsically Disordered Proteins
19.4K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
19.4K
02:12The Wave Nature of Light
61.2K
The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
61.2K