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- W3012247116 abstract "Abstract The peptidyl-prolyl cis-trans isomerase, Pin1, acts as a unified signaling hub that is exploited in cancer to activate oncogenes and inactivate tumor suppressors, in particular through up-regulation of c-Myc target genes. However, despite considerable efforts, Pin1 has remained an elusive drug target. Here, we screened an electrophilic fragment library to discover covalent inhibitors targeting Pin1’s active site nucleophile - Cys113, leading to the development of Sulfopin, a double-digit nanomolar Pin1 inhibitor. Sulfopin is highly selective for Pin1, as validated by two independent chemoproteomics methods, achieves potent cellular and in vivo target engagement, and phenocopies genetic knockout of Pin1. Although Pin1 inhibition had a modest effect on viability in cancer cell cultures, Sulfopin induced downregulation of c-Myc target genes and reduced tumor initiation and tumor progression in murine and zebrafish models of MYCN-driven neuroblastoma. Our results suggest that Sulfopin is a suitable chemical probe for assessing Pin1-dependent pharmacology in cells and in vivo . Moreover, these studies indicate that Pin1 should be further investigated as a potential cancer target." @default.
- W3012247116 created "2020-03-23" @default.
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- W3012247116 date "2020-03-21" @default.
- W3012247116 modified "2023-10-11" @default.
- W3012247116 title "Sulfopin, a selective covalent inhibitor of Pin1, blocks Myc-driven tumor initiation and growth<i>in vivo</i>" @default.
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