1. Rapid Discovery of Functional Small Molecule Ligands against Proteomic Targets through Library-Against-Library Screening.
- Author
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Wu CY, Wang DH, Wang X, Dixon SM, Meng L, Ahadi S, Enter DH, Chen CY, Kato J, Leon LJ, Ramirez LM, Maeda Y, Reis CF, Ribeiro B, Weems B, Kung HJ, and Lam KS
- Subjects
- Antineoplastic Agents pharmacology, Benzimidazoles chemical synthesis, Benzimidazoles pharmacology, Cell Cycle, Cell Line, Combinatorial Chemistry Techniques methods, DNA, Complementary biosynthesis, DNA, Complementary genetics, Drug Screening Assays, Antitumor, High-Throughput Screening Assays, Humans, Jurkat Cells, Ligands, Methionine metabolism, Drug Discovery methods, Peptide Library, Proteomics methods, Small Molecule Libraries
- Abstract
Identifying "druggable" targets and their corresponding therapeutic agents are two fundamental challenges in drug discovery research. The one-bead-one-compound (OBOC) combinatorial library method has been developed to discover peptides or small molecules that bind to a specific target protein or elicit a specific cellular response. The phage display cDNA expression proteome library method has been employed to identify target proteins that interact with specific compounds. Here, we combined these two high-throughput approaches, efficiently interrogated approximately 10(13) possible molecular interactions, and identified 91 small molecule compound beads that interacted strongly with the phage library. Of 19 compounds resynthesized, 4 were cytotoxic against cancer cells; one of these compounds was found to interact with EIF5B and inhibit protein translation. As more binding pairs are confirmed and evaluated, the "library-against-library" screening approach and the resulting small molecule-protein domain interaction database may serve as a valuable tool for basic research and drug development.
- Published
- 2016
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