WW and C2 domain-containing (WWC) proteins have emerged as pivotal regulators of cancer initiation, progression, and therapeutic resistance. This review synthesizes current evidence demonstrating that WWC1, WWC2, and WWC3 exert context-dependent effects across malignancies, with WWC2 consistently functioning as a tumor suppressor while WWC1 and WWC3 display tissue-specific variability. By integrating and regulating multiple signaling pathways, particularly Hippo and Wnt, WWC proteins function as molecular scaffolds that regulate proliferation, apoptosis, epithelial-mesenchymal transition, and metastasis. This review provides a comprehensive overview of the molecular characteristics, biological functions, and clinical implications of WWC proteins, highlighting their potential as prognostic biomarkers and therapeutic targets for precision oncology.
Wang et al. (2026) studied this question.