The Hippo pathway is a unique signalling module that regulates cell-specific transcriptional responses and responds to a wide range of intrinsic and extrinsic cues. Besides its classical role in restricting tissue size during development, Hippo signalling is now recognized to control numerous processes including cell proliferation, survival, cell fate determination, epithelial-to-mesenchymal transitions and cell migration. Because of its highly dynamic nature, the intestinal epithelium has served as an exceptional model to study the complex roles of Hippo signalling. In this review, we shall present an overview of Hippo function in the mammalian intestine and discuss the various mechanisms regulating Hippo signalling and how they contribute to intestinal regeneration and cancer.
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