Das Srijan, Tiwari Gopal J, Ghosh Anindita
Medical College and Hospital Kolkata, 88, College Street, Kolkata, West Bengal 700073 India.
CSIR-National Botanical Research Institute, Rana Pratap Marg, PO Box No. 436, Lucknow, Uttar Pradesh 226001 India.
3 Biotech. 2020 Dec;10(12):536. doi: 10.1007/s13205-020-02537-2. Epub 2020 Nov 16.
Age-related macular degeneration (AMD) leads to progressive degeneration of the macula which ultimately results in the complete loss of central vision. The present study aims to identify the new therapeutic agents for curing AMD. In the present study we have isolated, and compared the activity of natural flavonoids (Karanjin, Karanjachromene, Pongachromene, Pongapin) from plant species (L.) Pierre (Family: Fabaceae) with known flavonol, Quercetin, and a drug Pazopanib through in silico approaches. Chemical structures of isolated flavonoids passed the ADME and PASS analysis, showed drug-like properties without violation of Lipinski parameters. Molecular docking studies were also performed for all isolated flavonoids with the receptors responsible for AMD viz. P2X7, PPAR, RAGE, and TLR3. Docking scores of the flavonoids with the receptors were found to be comparable to that of Quercetin, and Pazopanib (drugs already known for AMD treatment). Among all the flavonoids, Karanjachromene [P2X7 (- 31.39)] and Pongachromene [PPAR (- 65.13), RAGE (- 43.42)] showed a very good binding affinity with receptors predicting them to be the new potent chemical entities for the treatment of AMD.
年龄相关性黄斑变性(AMD)会导致黄斑进行性退化,最终导致中心视力完全丧失。本研究旨在确定治疗AMD的新型治疗药物。在本研究中,我们通过计算机模拟方法,从植物物种(豆科)中分离出天然黄酮类化合物(卡拉金、卡拉那色烯、庞加色烯、庞加品),并将其与已知的黄酮醇、槲皮素以及药物帕唑帕尼的活性进行了比较。分离出的黄酮类化合物的化学结构通过了ADME和PASS分析,显示出类药物特性,且未违反Lipinski参数。还对所有分离出的黄酮类化合物与导致AMD的受体即P2X7、PPAR、RAGE和TLR3进行了分子对接研究。发现黄酮类化合物与这些受体的对接分数与槲皮素和帕唑帕尼(已知用于治疗AMD的药物)相当。在所有黄酮类化合物中,卡拉那色烯[P2X7(-31.39)]和庞加色烯[PPAR(-65.13),RAGE(-43.42)]与受体显示出非常好的结合亲和力,预测它们是治疗AMD的新型有效化学实体。