| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10592521 | Bioorganic & Medicinal Chemistry Letters | 2012 | 4 Pages |
Abstract
Phosphodiesterase-4 (PDE4) has been identified to be a promising target for treatment of asthma. Moracin M extracted from Chinese herbal drug 'Sang-Bai-Pi' (Morus alba L.) was studied for the inhibitory affinity towards PDE4. It inhibited PDE4D2, PDE4B2, PDE5A1, and PDE9A2 with the IC50 values of 2.9, 4.5, >40, and >100 μM, respectively. Our molecular docking and 8 ns molecular dynamics (MD) simulations demonstrated that moracin M forms three hydrogen bonds with Gln369, Asn321, and Asp318 in the active site and stacks against Phe372. In addition, comparative kinetics analysis of its analog moracin C was carried out to qualitatively validate their inhibitory potency as predicted by the binding free energy calculations after MD simulations.
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Authors
Shang-Ke Chen, Peng Zhao, Yong-Xian Shao, Zhe Li, Cuixian Zhang, Peiqing Liu, Xixin He, Hai-Bin Luo, Xiaopeng Hu,