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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/112551

    Title: Male-Specific Long Noncoding RNA TTTY15 Inhibits Non-Small Cell Lung Cancer Proliferation and Metastasis via TBX4
    Authors: Lai, I-Lu;Chan, Ya-Sian;Chang, Ya-Sian;詹雯玲;Chan, Wen-Ling;Lee, Ya-Ting;Lee, Ya-Ting;Yen, Ju-Chen;Yen, Ju-Chen;Yang, Chin-An;Yang, Chin-An;Hung, Shih-Ya;Hung, Shih-Ya;Ch, Jan-Gowth;Chang, Jan-Gowth
    Contributors: 生物資訊與醫學工程學系
    Date: 2019-07
    Issue Date: 2019-11-15 11:38:10 (UTC+8)
    Abstract: Gender affects cancer susceptibility. Currently, there are only a few studies on Y chromosome-linked long noncoding RNAs (lncRNAs), and the potential association between lncRNAs and cancers in males has not been fully elucidated. Here, we examined the expression of testis-specific transcript Y-linked 15 (TTTY15) in 37 males with non-small cell lung cancer (NSCLC), and performed circular chromosome conformation capture with next-generation sequencing to determine the genomic interaction regions of the TTTY15 gene. Our results showed that the expression levels of TTTY15 were lower in NSCLC tissues. Lower TTTY15 expression levels were associated with Tumor-Node-Metastasis (TNM) stage. A TTTY15 knockdown promoted malignant transformation of NSCLC cells. Based on the bioinformatics analysis of circular chromosome conformation capture data, we found that T-box transcription factor 4 (TBX4) may be a potential target gene of TTTY15. The RNA immunoprecipitation and chromatin immunoprecipitation results showed that TTTY15 may interact with DNA (cytosine-5)-methyltransferase 3A (DNMT3A), and the TTTY15 knockdown increased the binding of DNMT3A to the TBX4 promoter. We concluded that low TTTY15 expression correlates with worse prognosis among patients with NSCLC. TTTY15 promotes TBX4 expression via DNMT3A-mediated regulation. The identification of lncRNAs encoded by male-specific genes may help to identify potential targets for NSCLC therapy.

    Keywords: TTTY15, lncRNA, non-small cell lung cancer, TBX4, methylation, DNMT
    Appears in Collections:[生物資訊與醫學工程學系 ] 期刊論文

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