Discovery of cell active macrocyclic peptides with on-target inhibition of KRAS signaling

Abstract excerpt

assay, thus making this series unsuitable for advancement due to the potentially fatal consequences of mast cell degranulation. This observation should signal to researchers that cationic-mediated cell entry - an approach that has yet to succeed in the clinic despite a long history of attempts - carries significant therapy-limiting safety liabilities. Nonetheless, the cell-active molecules identified here...

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