来自Penicillium sp. 的抗炎性二次代谢物 在NX-S-6中,它是NX-S-6的
Hanyang Peng1, Jiawen Sun1, Rui Zhang1
1Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
Marine drugs
|July 25, 2025
概括
内生菌 (Penicillium) 产生的新型菌素和其他天然产品. 化合物1,4和8通过抑制氧化,白内素6和NLRP3炎症酶激活,表现出强大的抗炎作用.
科学领域:
- 自然产品化学 自然产品化学
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 内生菌,如Penicillium物种,是结构多样化的自然产品的丰富来源.
- 从内菌微生物中研究新型化合物对于药物发现至关重要.
研究的目的:
- 从内生菌 (Penicillium sp.) 中分离和描述新的自然产品. 在 NX-S-6.
- 评估隔离化合物的抗炎潜力.
主要方法:
- 使用全面的光谱分析 (NMR,MS) 和电子循环二元化 (ECD) 计算,对自然产品的隔离和结构阐明.
- 在体外对激活脂多糖 (LPS) 的巨细胞的抗炎活性进行生物评估.
- 关于NLRP3炎症酶激活及其抑制的机制研究.
主要成果:
- 确定了五种新的天然产品,包括两种基类 (1-2),一种印林类类 (10),一种四环类类固醇 (11),以及一种α-pyrone衍生物 (14).
- 昆酸 (1) 是一种独特的混合酸类基架.
- 化合物1,4和8抑制了氧化和中白素6的产生.
- 化合物4和8通过阻断NLRP3炎症酶激活来抑制互白素-1β的分泌.
结论:
- 植物内性 (Penicillium sp.) 是一种植物. NX-S-6是各种自然产品的丰富来源.
- 化合物4和8通过向NLRP3炎症酶途径,显示出显著的抗炎潜力.
- 这些发现表明,从内菌衍生化合物开发新型抗炎疗法的潜力.
相关概念视频
Antibody Structure
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Cross-reactivity
Overview
Allergic Reactions: Anaphylaxis
Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin, heparin),...
Hypersensitivity Reactions: Cytolytic Reactions
Type II hypersensitivity involves IgG and IgM antibodies targeting cell surface antigens, leading to cell destruction. This can occur through complement activation, antibody-dependent cell-mediated cytotoxicity (ADCC), or acting as opsonins for phagocytosis. When excessive, these reactions cause significant tissue damage.Drug-induced hemolytic anemia is a common example, where drugs like penicillin or cephalosporins bind to red blood cells, forming drug-protein complexes. These complexes...
Production of Antibiotics
Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
Hypersensitivity Reactions: Immune-Complex Reactions
Type III hypersensitivity reactions occur when antigen–antibody complexes form and activate the complement system. Normally, these complexes help the clearance of antigens by phagocytes and red blood cells. However, when large numbers of immune complexes are present, they can deposit in tissues—particularly in the walls of blood vessels—leading to inflammation and tissue injury. These deposits trigger complement activation and neutrophil recruitment, resulting in serum sickness, a systemic...


