Overexpression of Alteration/Deficiency in Activation 3 correlates with poor prognosis in non-small cell lung cancer.

Alteration/Deficiency in Activation 3 (ADA3), the human homologue of yeast ADA3, is involved in a variety of cell biological processes and plays an important role in tumorigenesis. Here, western blotting and reverse-transcription quantitative PCR (RT-qPCR) were conducted to explore the expression pattern of ADA3 in non-small cell lung cancer (NSCLC) patients. It was found that ADA3 protein expression in cancerous tissues was significantly higher than that in adjacent normal lung tissues, but there were no differences in mRNA levels. Tissue microarray immunohistochemical assay (TMA-IHC) was performed and we investigated the prognostic significance of ADA3 expression in 84 cases of NSCLC. Survival analyses showed that high expression of ADA3 was an independent prognostic factor for unfavorable overall survival (OS) in patients with NSCLC. In summary, the ADA3 expression level elevates in NSCLC and correlates with poor OS in NSCLC patients.

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