YAP-TEAD signaling promotes Basal Cell Carcinoma development via c-JUN/AP1 axis [ChIP-seq]
收藏干细胞与再生医学数据中心2022-02-20 更新2024-03-06 收录
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The mammalian Hippo signaling pathway, through its effectors YAP and TAZ, coerces epithelial progenitor cell expansion for appropriate tissue development or regeneration upon damage. Its ability to drive rapid tissue growth explains why many oncogenic events frequently exploit this pathway to promote cancer phenotypes. Indeed, several tumor types including basal cell carcinoma (BCC) show genetic aberrations in the Hippo (or YAP/TAZ) regulators. Here, we uncover that while YAP is dispensable for homeostatic epidermal regeneration, it is required for BCC development. Our clonal analyses further demonstrate that few emerging Yap-null dysplasia have lower fitness and thus are diminished as they progress to invasive BCC. Mechanistically, YAP depletion in BCC tumors leads to effective impairment of the JNK-JUN signaling, a well-established tumor driving cascade. Importantly, in this context, YAP does not influence canonical Wnt or Hedgehog signaling. Overall, we reveal the Hippo signaling as an independent promoter of BCC pathogenesis and thereby a viable target for drug-resistant BCC.
提供机构：
University of Torino
创建时间：
2022-02-20
