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Monitoring Wnt/?-Catenin Signaling in Skin #MMPMID27590159
Ku AT; Miao Q; Nguyen H
Methods Mol Biol 2016[]; 1481 (ä): 127-40 PMID27590159show ga
Wnt signaling through ?-catenin plays a crucial role in skin development and homeostasis. Disruption or hyperactivation of this pathway results in skin defects and diseases (Lim and Nusse, Cold Spring Harb Perspect Biol 5(2), 2013). Monitoring Wnt signaling in skin under normal and abnormal conditions is therefore critical to understand the role of this pathway in development and homeostasis.In this chapter, we provide methods to detect Wnt/?-catenin (canonical) signaling in the skin. We present a comprehensive list of Wnt reporter mice and detail the processing of skin tissue to detect reporter genes. From this list, we focus on the three most recent lines that, according to reports, are the most sensitive in skin. Additionally, we describe a protocol to detect nuclear ?-catenin, a hallmark of active Wnt signaling, although this technique should be used with caution due to its limited sensitivity. The techniques outlined below will be useful for detecting active Wnt signaling in skin.