title: A high-throughput assay for assessing the cell permeability of combinatorial libraries.
abstract: There is great interest in the identification of synthetic molecules that are capable of manipulating protein-protein interactions in living cells. Peptides, unlike other classes of small molecules, have binding properties appropriate for this application, but most are poorly cell permeable and sensitive to proteases. Therefore, considerable effort has been expended in the development of libraries of oligomeric peptide-like molecules. However, there are no clear-cut rules to guide the design of libraries rich in cell permeable compounds. Furthermore, currently available empirical methods to assess permeability may not accurately reflect true permeability and/or are capable of only modest throughput. We describe here an assay for assessing the relative cell permeability of synthetic molecules in the context of steroid fusions that is capable of high throughput and can be used in any transfectable cell line.
authors.affiliation: Department of Internal Medicine, University of Texas Southwestern Medical Cetner, 5323 Harry Hines Blvd., Dallas, Texas 75390-8573.
authors.forename: Peng
authors.initials: P
authors.lastname: Yu
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.forename: Thomas
authors.initials: T
authors.lastname: Kodadek
mesh_terms: D001667:Binding, Competitive; D002463:Cell Membrane Permeability; D020650:Combinatorial Chemistry Techniques; D015195:Drug Design; D006367:HeLa Cells; D006801:Humans; D019151:Peptide Library
chemical_list: D019151:Peptide Library