Abstract:
:Lung cancer remains the leading cause of cancer-associated mortality in China and the world. Increasing numbers of studies have reported that sphingosine kinase 1 (SPK1) is frequently highly expressed in tumors of various origins, including lung cancer, and its high expression contributes toward tumor progression. However, the clinical significance of SPK1 and its role in the growth and metastasis of non-small-cell lung cancer (NSCLC) remain unclear. In the present study, we found that SPK1 expression was expressed highly in NSCLC tissues and cell lines. Knockdown of SPK1 suppressed cell growth, proliferation, migration, and invasion and increased apoptosis. Moreover, knocking down SPK1 expression inhibited the growth of tumors in nude mice. Mechanistically, silencing the expression of SPK1 inhibited the expression of p-extracellular signal-regulated kinase (ERK). Moreover, the ERK-specific inhibitor U0126 suppressed the expression of the epithelial-mesenchymal transition of lung cancer cells. Together, our findings indicated that SPK1 enhanced tumor growth in lung cancer and induced metastasis by activating the ERK1/2 signaling pathway, indicating its potential application in NSCLC diagnosis and therapy.
journal_name
Anticancer Drugsjournal_title
Anti-cancer drugsauthors
Yang Y,Zhao J,Hao D,Wang X,Wang T,Li H,Lv Bdoi
10.1097/CAD.0000000000000733subject
Has Abstractpub_date
2019-06-01 00:00:00pages
458-465issue
5eissn
0959-4973issn
1473-5741journal_volume
30pub_type
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journal_title:Anti-cancer drugs
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journal_title:Anti-cancer drugs
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journal_title:Anti-cancer drugs
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