Liposomal Permeation Assay for Droplet-Scale Pharmacokinetic Screening.

ABSTRACT: Combinatorial library screening increasingly explores chemical space beyond the Ro5 (bRo5), which is useful for investigating "undruggable" targets but suffers compromised cellular permeability and therefore bioavailability. Moreover, structure-permeation relationships for bRo5 molecules are unclear partially because high-throughput permeation measurement technology for encoded combinatorial libraries is still nascent. Here, we present a permeation assay that is scalable to combinatorial library screening. A liposomal fluorogenic azide probe transduces permeation of alkyne-labeled molecules into small unilamellar vesicles via copper-catalyzed azide-alkyne cycloaddition. Control alkynes (e.g., propargylamine, various alkyne-labeled PEGs) benchmarked the assay. Cell-permeable macrocyclic pep

SUBMITTER: Hu J 

PROVIDER: S-EPMC10184116 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature