Utilising the intrinsic fluorescence of pomalidomide for imaging applications
CHEMICAL COMMUNICATIONS(2023)
摘要
Optimisation of protein degraders requires balancing multiple factors including potency, cell permeability and solubility. Here we show that the fluorescence of pomalidomide can be used in high-throughput screening assays to rapidly assess cellular penetration of degrader candidates. In addition, this technique can be paired with endocytosis inhibitors to gain insight into potential mechanisms of candidates entering a target cell. A model library of pomalidomide conjugates was synthesised and evaluated using high-throughput fluorescence microscopy. This technique based on intrinsic fluorescence can be used to guide rational design of pomalidomide conjugates without the need for additional labels or tags. The fluorescent properties of pomalidomide derivatives have been utilised to develop a high-throughput imaging method suitable for rapid screening of protein degrader candidates.
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