Knockdown of aristaless-like homeobox1 inhibits epithelial-mesenchymal transition through Wnt/β-catenin signaling pathway in melanoma cells.

Aristaless-like homeobox1 (ALX1), a member of the ALX family, is capable of mediating survival and development of mesenchyme-derived elements in vertebrates and its mutation will prevent the fusion of frontonasal and maxillary elements. Recently, ALX1 has been reported to be associated with cancer progression. However, the specific roles of ALX1 in melanoma remain unclear. In this study, we investigated the expression pattern and biological functions of ALX1 in melanoma. We found that ALX1 was highly expressed in melanoma tissues and cell lines. Knockdown of ALX1 suppressed the proliferation and invasion of melanoma cells. Furthermore, we showed that ALX1 knockdown reversed the epithelial-mesenchymal transition (EMT) process in melanoma cells, which might be attributed to inactivation of the Wnt/β-catenin pathway. Taken together, this study provided a new insight into the role of ALX1 as a therapeutic target for melanoma treatment.

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