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He Y, Liu S, Menon A, Stanford S, Oppong E, Gunawan AM, Wu L, Wu DJ, Barrios AM, Bottini N, Cato ACB, Zhang ZY. A potent and selective small-molecule inhibitor for the lymphoid-specific tyrosine phosphatase (LYP), a target associated with autoimmune diseases. J Med Chem 2013; 56:4990-5008. [PMID: 23713581 PMCID: PMC3711248 DOI: 10.1021/jm400248c] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Lymphoid-specific tyrosine phosphatase (LYP), a member of the protein tyrosine phosphatase (PTP) family of signaling enzymes, is associated with a broad spectrum of autoimmune diseases. Herein we describe our structure-based lead optimization efforts within a 6-hydroxy-benzofuran-5-carboxylic acid series culminating in the identification of compound 8b, a potent and selective inhibitor of LYP with a K(i) value of 110 nM and more than 9-fold selectivity over a large panel of PTPs. The structure of LYP in complex with 8b was obtained by X-ray crystallography, providing detailed information about the molecular recognition of small-molecule ligands binding LYP. Importantly, compound 8b possesses highly efficacious cellular activity in both T- and mast cells and is capable of blocking anaphylaxis in mice. Discovery of 8b establishes a starting point for the development of clinically useful LYP inhibitors for treating a wide range of autoimmune disorders.
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Affiliation(s)
- Yantao He
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, Indiana 46202, USA
| | - Sijiu Liu
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, Indiana 46202, USA
| | - Ambili Menon
- Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Hermann-von- Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Stephanie Stanford
- Division of Cellular Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Emmanuel Oppong
- Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Hermann-von- Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Andrea M. Gunawan
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, Indiana 46202, USA
| | - Li Wu
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, Indiana 46202, USA
| | - Dennis J. Wu
- Division of Cellular Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Amy M. Barrios
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Nunzio Bottini
- Division of Cellular Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Andrew C. B. Cato
- Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Hermann-von- Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Zhong-Yin Zhang
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, Indiana 46202, USA
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