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Updated: Sep 20, 2025

Modeling Paracrine Noncanonical Wnt Signaling In Vitro
Published on: December 10, 2021
Wnt Signaling in the Breast: From Development to Disease
Willy Antoni Abreu de Oliveira1, Youssef El Laithy1, Alejandra Bruna2
1Department of Development and Regeneration, Stem Cell Institute, Katholieke Universiteit (KU) Leuven, Leuven, Belgium.
Abstract:
The Wnt cascade is a primordial developmental signaling pathway that plays a myriad of essential functions throughout development and adult homeostasis in virtually all animal species. Aberrant Wnt activity is implicated in embryonic and tissue morphogenesis defects, and several diseases, most notably cancer. The role of Wnt signaling in mammary gland development and breast cancer initiation, maintenance, and progression is far from being completely understood and is rather shrouded in controversy. In this review, we dissect the fundamental role of Wnt signaling in mammary gland development and adult homeostasis and explore how defects in its tightly regulated and intricated molecular network are interlinked with cancer, with a focus on the breast.
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