FAT1 cadherin controls neuritogenesis during NTera2 cell differentiation.

Fat1 cadherin is broadly expressed throughout the nervous system and has been implicated in neuronal differentiation. Here we examined the functional contribution of FAT1 during neuronal differentiation of the Ntera2 cell line model. FAT1 expression was increased during the retinoic acid (RA)-induced differentiation of NTera2 cells. Depletion of FAT1 with siRNA decreased the number of neurites produced after RA treatment. Moreover, FAT1 silencing also led to decreased Ser127-phosphorylation of YAP along with transcriptional increases in the Hippo target genes CTGF and ANKRD1, suggesting FAT1 alters Hippo signalling during differentiation. In the context of the Ntera2 model, FAT1 is required for efficient neuritogenesis, acting as a regulator of neurite formation during the early stages of differentiation.

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