PMID- 32794708 OWN - NLM STAT- MEDLINE DCOM- 20201218 LR - 20201218 IS - 1520-4804 (Electronic) IS - 0022-2623 (Linking) VI - 63 IP - 17 DP - 2020 Sep 10 TI - Discovery of Evodiamine Derivatives as Highly Selective PDE5 Inhibitors Targeting a Unique Allosteric Pocket. PG - 9828-9837 LID - 10.1021/acs.jmedchem.0c00983 [doi] AB - Clinical use of phosphodiesterase-5 (PDE5) inhibitors is limited by several side effects due to weak isoform selectivity. Herein, a unique allosteric pocket of PDE5 is identified by molecular modeling and structural biology, which enables the discovery of highly selective PDE5 inhibitors from natural product evodiamine (EVO). The crystal structure of PDE5 with bound EVO derivative (S)-7e revealed that binding of (S)-7e to the novel allosteric pocket induced dramatic conformation changes in the H-loop with a maximum 24 A movement of their Calpha atoms. This movement directly blocks the binding of substrate/inhibitors to the PDE5 active site, which is different from all traditional PDE5 inhibitors such as sildenafil, tadalafil, and vardenafil. These derivatives showed >570-fold selectivity over PDE6C and PDE11A and achieved potent efficacy for the effective treatment of pulmonary hypertension in vivo. FAU - Zhang, Tianhua AU - Zhang T AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China. AD - Department of Biochemistry and Biophysics and Lineberger Comprehensive Cancer Center, The University of North Carolina, Chapel Hill, North Carolina 27599-7260, United States. FAU - Lai, Zengwei AU - Lai Z AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China. AD - School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China. FAU - Yuan, Suying AU - Yuan S AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China. FAU - Huang, Yi-You AU - Huang YY AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China. FAU - Dong, Guoqiang AU - Dong G AD - School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China. FAU - Sheng, Chunquan AU - Sheng C AUID- ORCID: 0000-0001-9489-804X AD - School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China. FAU - Ke, Hengming AU - Ke H AD - Department of Biochemistry and Biophysics and Lineberger Comprehensive Cancer Center, The University of North Carolina, Chapel Hill, North Carolina 27599-7260, United States. FAU - Luo, Hai-Bin AU - Luo HB AUID- ORCID: 0000-0002-2163-0509 AD - School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China. AD - Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, Hainan, China. LA - eng PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20200827 PL - United States TA - J Med Chem JT - Journal of medicinal chemistry JID - 9716531 RN - 0 (Phosphodiesterase 5 Inhibitors) RN - 0 (Quinazolines) RN - C01825BVNL (evodiamine) RN - EC 3.1.4.35 (Cyclic Nucleotide Phosphodiesterases, Type 5) RN - EC 3.1.4.35 (Pde5a protein, mouse) SB - IM MH - Allosteric Site MH - Amino Acid Sequence MH - Animals MH - Cyclic Nucleotide Phosphodiesterases, Type 5/chemistry/*metabolism MH - Drug Discovery MH - Male MH - Mice MH - Molecular Docking Simulation MH - Phosphodiesterase 5 Inhibitors/chemistry/*metabolism/pharmacokinetics MH - Protein Binding MH - Quinazolines/chemistry/*metabolism/pharmacokinetics MH - Rats, Sprague-Dawley MH - Sequence Alignment MH - Structure-Activity Relationship EDAT- 2020/08/17 06:00 MHDA- 2020/12/19 06:00 CRDT- 2020/08/16 06:00 PHST- 2020/08/17 06:00 [pubmed] PHST- 2020/12/19 06:00 [medline] PHST- 2020/08/16 06:00 [entrez] AID - 10.1021/acs.jmedchem.0c00983 [doi] PST - ppublish SO - J Med Chem. 2020 Sep 10;63(17):9828-9837. doi: 10.1021/acs.jmedchem.0c00983. Epub 2020 Aug 27.