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  • Title: The use of mammalian two-hybrid technologies for high-throughput drug screening.
    Author: Lievens S, Caligiuri M, Kley N, Tavernier J.
    Journal: Methods; 2012 Dec; 58(4):335-42. PubMed ID: 22917772.
    Abstract:
    Developing agents that target protein-protein interactions (PPIs) is an emerging field in drug discovery. Although this target class has hitherto remained underexplored, it holds exceptional promise related to the large amount of potential PPI targets compared to single protein targets and it offers important opportunities to increase the specificity of therapeutic molecules. While several PPI modulating therapeutics have recently been reported and a number of these are in clinical trial, progress in the field has been hampered by the lack of efficient screening systems. Recently, a number of cellular approaches have been developed that complement classical in vitro screening methods and which exhibit a number of important assets related to the physiological context they provide. Here we discuss the utility of two-hybrid technologies towards high-throughput screening for PPI inhibitors, in particular those that operate in a mammalian cellular background. We review a number of cases where mammalian two-hybrids have been successfully applied to identify small molecule disruptors of PPIs and zoom in further on the MAPPIT (Mammalian Protein-Protein Interaction Trap) technology platform. The value of this approach for drug discovery is illustrated by recent data from MAPPIT-based screening projects.
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