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Gorenflos López JL, Dornan GL, Boback N, Neuenschwander M, Oder A, Kemnitz-Hassanin K, Schmieder P, Specker E, Asikoglu HC, Oberdanner C, Seyffarth C, von Kries JP, Lauster D, Hinderlich S, Hackenberger CPR. Small Molecules Targeting Human UDP-GlcNAc 2-Epimerase. Chembiochem 2023; 24:e202300555. [PMID: 37769151 DOI: 10.1002/cbic.202300555] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/28/2023] [Accepted: 09/28/2023] [Indexed: 09/30/2023]
Abstract
Uridine diphosphate N-acetylglucosamine 2-epimerase (GNE) is a key enzyme in the sialic acid biosynthesis pathway. Sialic acids are primarily terminal carbohydrates on glycans and play fundamental roles in health and disease. In search of effective GNE inhibitors not based on a carbohydrate scaffold, we performed a high-throughput screening campaign of 68,640 drug-like small molecules against recombinant GNE using a UDP detection assay. We validated nine of the primary actives with an orthogonal real-time NMR assay and verified their IC50 values in the low micromolar to nanomolar range manually. Stability and solubility studies revealed three compounds for further evaluation. Thermal shift assays, analytical size exclusion, and interferometric scattering microscopy demonstrated that the GNE inhibitors acted on the oligomeric state of the protein. Finally, hydrogen-deuterium exchange mass spectrometry (HDX-MS) revealed which sections of GNE were shifted upon the addition of the inhibitors. In summary, we have identified three small molecules as GNE inhibitors with high potency in vitro, which serve as promising candidates to modulate sialic acid biosynthesis in more complex systems.
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Affiliation(s)
- Jacob L Gorenflos López
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
- Humboldt Universität zu Berlin, Department Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Gillian L Dornan
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Nico Boback
- Freie Universität Berlin, Institut für Pharmazie, Biopharmazeutika, Kelchstr. 31, 12169, Berlin, Germany
| | - Martin Neuenschwander
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Andreas Oder
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Kristin Kemnitz-Hassanin
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Peter Schmieder
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Edgar Specker
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Hatice Ceyda Asikoglu
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
- Berliner Hochschule für Technik (BHT), Seestrasse 64, 13347, Berlin, Germany
| | | | - Carola Seyffarth
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Jens Peter von Kries
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
| | - Daniel Lauster
- Freie Universität Berlin, Institut für Pharmazie, Biopharmazeutika, Kelchstr. 31, 12169, Berlin, Germany
| | - Stephan Hinderlich
- Berliner Hochschule für Technik (BHT), Seestrasse 64, 13347, Berlin, Germany
| | - Christian P R Hackenberger
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125, Berlin, Germany
- Humboldt Universität zu Berlin, Department Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
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Gorenflos López JL, Schmieder P, Kemnitz-Hassanin K, Asikoglu HC, Celik A, Stieger CE, Fiedler D, Hinderlich S, Hackenberger CPR. Real-Time Monitoring of the Sialic acid Biosynthesis Pathway by NMR. Chem Sci 2023; 14:3482-3492. [PMID: 37006695 PMCID: PMC10055903 DOI: 10.1039/d2sc06986e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/21/2023] [Indexed: 02/23/2023] Open
Abstract
Sialic acids are part of the outermost component of the glycocalyx of all vertebrates; as such, they are fundamental markers in physiological and pathological processes. In this study, we introduce...
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Affiliation(s)
- Jacob L Gorenflos López
- Leibniz-Institut für Molekulare Pharmakologie Robert-Roessle-Strasse 10 13125 Berlin Germany
- Humboldt Universität zu Berlin, Department Chemie Brook-Taylor-Strasse 2 12489 Germany
| | - Peter Schmieder
- Leibniz-Institut für Molekulare Pharmakologie Robert-Roessle-Strasse 10 13125 Berlin Germany
| | | | - Hatice Ceyda Asikoglu
- Leibniz-Institut für Molekulare Pharmakologie Robert-Roessle-Strasse 10 13125 Berlin Germany
- Berliner Hochschule für Technik, Department Life Sciences & Technology Seestrasse 64 13347 Berlin Germany
| | - Arif Celik
- Leibniz-Institut für Molekulare Pharmakologie Robert-Roessle-Strasse 10 13125 Berlin Germany
- Humboldt Universität zu Berlin, Department Chemie Brook-Taylor-Strasse 2 12489 Germany
| | - Christian E Stieger
- Leibniz-Institut für Molekulare Pharmakologie Robert-Roessle-Strasse 10 13125 Berlin Germany
- Humboldt Universität zu Berlin, Department Chemie Brook-Taylor-Strasse 2 12489 Germany
| | - Dorothea Fiedler
- Leibniz-Institut für Molekulare Pharmakologie Robert-Roessle-Strasse 10 13125 Berlin Germany
- Humboldt Universität zu Berlin, Department Chemie Brook-Taylor-Strasse 2 12489 Germany
| | - Stephan Hinderlich
- Berliner Hochschule für Technik, Department Life Sciences & Technology Seestrasse 64 13347 Berlin Germany
| | - Christian P R Hackenberger
- Leibniz-Institut für Molekulare Pharmakologie Robert-Roessle-Strasse 10 13125 Berlin Germany
- Humboldt Universität zu Berlin, Department Chemie Brook-Taylor-Strasse 2 12489 Germany
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