Inhibiting of Proliferation, Migration, and Invasion in Lung Cancer Induced by Silencing Interferon-Induced Transmembrane Protein 1 (IFITM1).
BioMed research international(2019)
Abstract
Interferon-induced transmembrane protein 1 (IFITM1), a 17-kDa membrane protein, is generally known as a modulator in many cellular functions. Recent studies showed overexpression of IFITM1 in cancers and relationship between IFITM1 overexpression and tumor progression. However, the role of IFITM1 in lung cancer remains unclear. Here, we presented the overexpression of IFITM1 in lung cancer tissues and cell lines A549 and H460 using quantitative Real-Time RT-PCR. In vitro assay indicated IFITM1 silencing inhibited lung cancer cell proliferation, migration, and invasion. Further, in vivo assay showed that IFITM1 silencing markedly suppressed cell growth and metastasis of lung cancer in tumor-bearing BALB/c nude mice. Mechanistically, we found that IFITM1 silencing significantly alleviated the protein levels of β-catenin, cyclin D1, and c-Mycin lung cancer cells and tumor samples. Taken together, our study revealed the role of IFITM1 as a tumor promoter during lung cancer development and the possible molecular mechanism.
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