作为雌激素受体α (ERα) 抑制剂的α-曼戈斯结合氨基酸
Hanggara Arifian1,2, Rani Maharani3,4, Sandra Megantara1,4
1Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, West Java, Indonesia.
Journal of biomolecular structure & dynamics
|July 11, 2025
概括
这项研究修改了alpha-mangostin以提高乳腺癌治疗的生物可用性. Am1Leu结合物对雌激素受体-α (ERα) 显示出强烈的结合亲和力,与现有疗法相比.
科学领域:
- 药理学 药理学是指药理学的学科.
- 计算化学的计算化学
- 药用化学 医学化学
背景情况:
- 阿尔法-曼戈斯,一种来自曼戈斯的桑,显示出抗癌潜力,特别是对抗乳腺癌.
- 阿尔法-曼戈斯的低生物可用性限制了其治疗应用.
- 研究了氨基酸结合来增强α-曼戈斯的特性.
研究的目的:
- 设计和计算评估阿尔法-曼戈斯-氨基酸结合物.
- 评估这些结合物与雌激素受体α (ERα) 的结合亲和力.
- 为了确定乳腺癌治疗的有前途的候选人.
主要方法:
- 基于激素的药物设计 (LBDD) 用于药模拟.
- 分子对接模拟用于预测结合相互作用.
- 200 ns的分子动力学 (MD) 模拟与MMPBSA分析.
主要成果:
- 所有设计的结合剂都符合已建立的药模型.
- Am1Leu结合物对ERα表现出显著的结合 (通过对接获得10.74 kcal/mol).
- 医学模拟证实Am1Leu与ERα的稳定相互作用,其结合亲和力与4-胺素相似 (-53.33 kcal/mol与-53.25 kcal/mol).
结论:
- Am1Leu (阿尔法-曼戈斯与氨酸结合) 对ERα具有强烈的结合亲和力.
- 改善的结合表明Am1Leu作为ERα阳性乳腺癌的潜在治疗剂的可行性.
- 这项研究强调了氨基酸结合在增强天然化合物的类似药物的特性方面的成功.
相关概念视频
Adrenergic Agonists: Chemistry and Structure-Activity Relationship
3.3K
Adrenergic agonists' structure-activity relationship (SAR) determines their selectivity and efficacy. These agonists comprise a phenylethylamine moiety with an aromatic ring and an ethylamine side chain.
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of...
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of...
3.3K
Adrenergic Antagonists: Chemistry and Classification of ɑ-Receptor Blockers
1.1K
Adrenergic antagonists, or sympatholytics, inhibit adrenoceptor activation driven by catecholamines or agonists. Based on their adrenoceptor specificity, adrenergic blockers can be categorized into two primary groups: α-adrenergic blockers (α-blockers) and β-adrenergic blockers (β-blockers). α-blockers interact with α1 and α2 subtypes of α-adrenoceptors.
Nonselective α-blockers: Nonselective α-blockers contain haloalkylamine or imidazoline...
Nonselective α-blockers: Nonselective α-blockers contain haloalkylamine or imidazoline...
1.1K
Adrenergic Antagonists: Pharmacological Actions of ɑ-Receptor Blockers
991
α-Adrenergic antagonists, known as α-blockers, exert their effects by inhibiting α-adrenoceptors, leading to specific physiological actions. α1-blockers and α2-blockers have distinct pharmacological actions and therapeutic applications.
α1-blockers: These drugs inhibit α1-adrenoceptors on smooth muscle cells, resulting in vasodilation. This vasodilation lowers blood pressure, making α1-blockers valuable in treating hypertension. Additionally,...
α1-blockers: These drugs inhibit α1-adrenoceptors on smooth muscle cells, resulting in vasodilation. This vasodilation lowers blood pressure, making α1-blockers valuable in treating hypertension. Additionally,...
991
Phase II Reactions: Sulfation and Conjugation with α-Amino Acids
435
Sulfation and α-amino acid conjugation are two critical biotransformation reactions in drug metabolism. Sulfation, a phase II biotransformation reaction, involves adding a polar sulfate group to a drug, enhancing its water solubility and promoting excretion. This process can either co-occur with or occur independently of glucuronidation. Nonmicrosomal sulfotransferase enzymes catalyze the process. The reaction involves 3'-phosphoadenosine-5'-phosphosulfate or PAPS coenzyme...
435
Drug-Receptor Interaction: Agonist
2.8K
Agonists are drugs that interact with specific receptors in the body to produce a biological response. When an agonist binds to a receptor, it activates or enhances the receptor's function, leading to physiological effects. The interaction between agonist drugs and receptors is crucial for their therapeutic action in various medical treatments.
Agonists can bind to receptors in different ways. Some agonists bind directly to the receptor's active site, mimicking the endogenous...
Agonists can bind to receptors in different ways. Some agonists bind directly to the receptor's active site, mimicking the endogenous...
2.8K
Adrenergic Antagonists: ɑ and β-Receptor Blockers
627
Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike conventional β-blockers, which can induce peripheral vasoconstriction, third-generation drugs block α1 adrenoceptors. This promotes vasodilation through several mechanisms, such as increased nitric oxide production, inhibition of calcium ion entry, opening of potassium ion channels, and antioxidant action. Labetalol, for instance, is...
627


