HPV16 E6/E7 upregulate hTERC mRNA and gene amplification levels by relieving the effect of LKB1 on Sp1 phosphorylation in lung cancer cells

Autor: Jing-Hua Yang, Ming-Zhe Wu, Xu-Bo Wang, Shiyu Wang, Xue-Shan Qiu, En-Hua Wang, Guang-Ping Wu
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Therapeutic Advances in Medical Oncology, Vol 12 (2020)
Druh dokumentu: article
ISSN: 1758-8359
17588359
DOI: 10.1177/1758835920917562
Popis: Background: There is an immediate need for research on the mechanism underlying telomerase activation and overexpression. Materials & Methods: A total of 174 patients with lung cancer ( n = 106) and benign lung disease ( n = 68) were recruited for the current study. The mRNA expression levels of E6, E7, LKB1, Sp1, and hTERC in brushing cells were detected by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR), and hTERC amplification was also detected by fluorescence in situ hybridization (FISH). To investigate the potential mechanism, bidirectional genetic manipulation was performed in well-established lung cancer cell lines. Results: Our results indicated that the mRNA expression levels of E6, E7, Sp1, and hTERC and the amplification level of hTERC were significantly increased in the malignant group compared with those of the benign group ( p
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