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MicroRNA-4776-5p acts as a radiosensitizer and predicts the prognosis of patients with head and neck cancer receiving radiotherapy

Lai, Y.-L.; Wang, C.-C.; Lin, Y.-L.; Shen, P.-C.; Tsai, M.-H.; Chen, F.-H.; Chang, W.-C.

2022-12-30 cancer biology
10.1101/2022.12.27.522054 bioRxiv
Show abstract

Head and neck cancer is the leading cancer worldwide. Radiation therapy plays important role of treatment for head and neck cancer. MicroRNAs have been shown to be related to tumor progression and radiosensitivity. However, the mechanisms are still largely unknown and evidence are still limited. In the current study, we sought to identify the miRNA related the radiosensitivity of head and neck tumor cell, which leading to the disappointed prognosis of patients with head and neck cancer receiving radiation therapy. The miRNA expression profiles and clinical information of patients with head and neck cancer were obtained from The Cancer Genome Atlas. The identification of miRNA was carried out through an integrated bioinformatics analysis. The miRNA identified in previous approach was validated through in vitro and in vivo studies. MiR-4776-5p was finally identified as the role of radio-sensitizer and predicts the prognosis of patients with head and neck cancer receiving radiotherapy. 11 of 16 genes targeted by the miR-4776-5p have been discovered to regulate the mechanisms related to radiosensitivity using functional annotation.

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