Abstract
Uveal melanoma is the most common primary malignant intraocular tumor in adults and still lacks effective systemic therapies. Annexin A2 receptor (AXIIR), a receptor for Annexin II, was demonstrated to play an important role in multiple cells, but its role in uveal melanoma cells remains exclusive. Herein, the authors reported that overexpression of AXIIR was able to reduce cell viability and activate apoptosis apparently in the Mum2C uveal melanoma cell line. Meanwhile, overexpression of AXIIR could induce autophagy and increase autophagy flux. After autophagy was inhibited by chloroquine, enhanced apoptosis and cytotoxicity could be detected. In summary, these data highlighted the crucial role of AXIIR in reducing Mum2C cell viability through inducing apoptosis, while autophagy played a protective role in this process. Interference of this gene may be a promising method for uveal melanoma therapy and combination with specific inhibitor of autophagy may serve as a supplementary.
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