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Li X, Zhang X, Wen X, Zhang D, Qu C, Miao X, Zhang W, Zhang R, Liu G, Xiao P, Sun JP, Gong W. Structural basis for ligand recognition and activation of the prostanoid receptors. Cell Rep 2024; 43:113893. [PMID: 38446662 DOI: 10.1016/j.celrep.2024.113893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/16/2024] [Accepted: 02/15/2024] [Indexed: 03/08/2024] Open
Abstract
Prostaglandin F2α (PGF2α) and thromboxane A2 (TXA2) are endogenous arachidonic acid metabolites, modulating diverse physiological processes including inflammation and cardiovascular homeostasis through activating PGF2α receptor (FP) and TXA2 receptor (TP). Ligands targeting FP and TP have demonstrated efficacy in treating conditions like glaucoma and cardiovascular diseases in humans, as well as reproductive-related diseases in animals. Here, we present five cryoelectron microscopy structures illustrating FP and TP in complex with Gq and bound to PGF2α (endogenous ligand), latanoprost acid (a clinical drug), and two other synthetic agonists. Combined with mutational and functional studies, these structures reveal not only structural features for the specific recognition of endogenous ligands and attainment of receptor selectivity of FP and TP but also the common mechanisms of receptor activation and Gq protein coupling. The findings may enrich our knowledge of ligand recognition and signal transduction of the prostanoid receptor family and facilitate rational ligand design toward these two receptors.
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Affiliation(s)
- Xiu Li
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xuan Zhang
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Xin Wen
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Daolai Zhang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Changxiu Qu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xinyi Miao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Wenkai Zhang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Ru Zhang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Guibing Liu
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng Xiao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Jin-Peng Sun
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China; Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Weimin Gong
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
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