Targeting FZD6 creates therapeutically actionable vulnerabilities for advanced prostate cancer.

ABSTRACT: Wnt signaling is a complex pathway consisting of numerous ligands and frizzled (FZD) receptors. These signaling components are widely expressed in human prostate tissues and often undergo upregulation or mutation in advanced prostate cancers. Enhanced Wnt signaling promotes prostate cancer cell proliferation, metastasis, and resistance to therapy. However, targeting pan-Wnt signaling poses challenges due to tissue toxicity. We show that FZD6 is the most highly expressed and frequently amplified Wnt receptor in advanced human prostate cancers. Knockdown of FZD6 suppresses both in vitro and in vivo growth of various prostate cancer cell lines and patient-derived xenograft models. FZD6 knockdown impairs DNA double-strand break (DSB) repair, as determined by both resolution of γH2AX foci and D

SUBMITTER: Li Y 

PROVIDER: S-EPMC12669021 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature