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2014 ; 5
(9
): 993-8
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Structure-Based Design and Synthesis of Potent Cyclic Peptides Inhibiting the
YAP-TEAD Protein-Protein Interaction
#MMPMID25221655
Zhang Z
; Lin Z
; Zhou Z
; Shen HC
; Yan SF
; Mayweg AV
; Xu Z
; Qin N
; Wong JC
; Zhang Z
; Rong Y
; Fry DC
; Hu T
ACS Med Chem Lett
2014[Sep]; 5
(9
): 993-8
PMID25221655
show ga
The YAP-TEAD protein-protein interaction (PPI) mediates the oncogenic function of
YAP, and inhibitors of this PPI have potential usage in treatment of YAP-involved
cancers. Here we report the design and synthesis of potent cyclic peptide
inhibitors of the YAP-TEAD interaction. A truncation study of YAP interface 3
peptide identified YAP(84-100) as a weak peptide inhibitor (IC50 = 37 ?M), and an
alanine scan revealed a beneficial mutation, D94A. Subsequent replacement of a
native cation-? interaction with an optimized disulfide bridge for conformational
constraint and synergistic effect between macrocyclization and modification at
positions 91 and 93 greatly boosted inhibitory activity. Peptide 17 was
identified with an IC50 of 25 nM, and the binding affinity (K d = 15 nM) of this
17mer peptide to TEAD1 proved to be stronger than YAP(50-171) (K d = 40 nM).