来自Piper betle Linn. 的氧沙维科尔衍生品. 作为具有抗炎作用的天然PDE4抑制剂
Jiazhi Ou1, Fang Zhong1, Peiluo Huang1
1Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, PR China.
研究人员从Piper betle L. 叶片中发现了新的天然化酶4 (PDE4) 抑制剂. 这些化合物显示出作为抗炎药物的潜力,其副作用比目前的治疗方法少.
科学领域:
- 自然产品化学 自然产品化学
- 药理学 药理学是指药理学的学科.
- 药用化学 医学化学
背景情况:
- 固酶4 (PDE4) 抑制剂用于肺炎,但会引起恶心和吐等副作用.
- 为了更安全的抗炎疗法,人们正在寻找具有副作用减少的天然PDE4抑制剂.
- Piper betle L. 叶子是生物活性化合物的来源,具有潜在的治疗应用.
研究的目的:
- 从Piper betle L. 叶子中分离和表征基沙维科尔衍生物.
- 评估这些衍生物的PDE4抑制活性和抗炎潜力.
- 调查有希望的抗炎化合物的作用机制.
主要方法:
- 用Piper betle L.叶子提取物进行化学研究以分离化合物.
- 在体外测试以确定PDE4抑制 (IC50值) 和对LPS刺激的RAW 264.7细胞的抗炎作用.
- 西部斑点分析以评估NF-κB信号通路的抑制.
主要成果:
- 确定了23种氧化衍生物,包括Piper属独有的新型类和新型类.
- 化合物5,7-14,16,17和21显示出显著的PDE4抑制,而化合物7显示出IC50为1.8μM.
- 化合物5,7,9和16减少了炎症媒介,而化合物16显示了与罗利普拉姆相似的疗效,并抑制了NF-κB通路.
结论:
- 来自Piper betle L. 叶子的氧沙维衍生物是强大的天然PDE4抑制剂.
- 这些化合物具有显著的抗炎活性,可能通过抑制NF-κB通路.
- Piper betle L. 的衍生品代表了开发新型,更安全的抗炎药物的有希望的候选人.
更多相关视频
06:34Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides CHIPS
Published on: June 20, 2014
06:12HUVEC Tube-formation Assay to Evaluate the Impact of Natural Products on Angiogenesis
Published on: June 24, 2019
相关概念视频
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
Direct-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
The direct-acting...
Drugs for Peptic Ulcer Disease: Prostaglandin Analogs as Mucosal Protective Agents
Non-steroidal anti-inflammatory drugs (NSAIDs) can induce peptic ulcers by inhibiting cyclooxygenase, decreasing...
Direct-Acting Cholinergic Agonists: Therapeutic Uses
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
