期刊
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH
卷 1864, 期 10, 页码 1746-1758出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bbamcr.2017.06.017
关键词
Non-small cell lung cancer; Invasion; Snail; Akt; A disintegrin and metalloprotease 9; Quercetin
资金
- Ministry of Science and Technology of Taiwan [MOST 105-2320-B-038-058-MY3]
- Taipei Medical University Hospital [105TMU-TMUH-08]
Metastasis is the major cause of death from lung cancer. Quercetin, a widely distributed bioflavonoid, is well known to induce growth inhibition in a variety of human cancer cells, but how it affects lung cancer cell invasion and metastasis is unclear. Herein, we found that quercetin inhibited the migration/invasion of non-small cell lung cancer (NSCLC) cell lines and bone metastasis in an orthotopic A549 xenograft model by suppressing the Snail-mediated epithelial-to-mesenchymal transition (EMT). Moreover, survival times of animals were also prolonged after quercetin treatment. Mechanistic investigations found that quercetin suppressed Snail-dependent Akt activation by upregulating maspin and Snail-independent a disintegrin and metalloproteinase (ADAM) 9 expression pathways to modulate the invasive ability of NSCLC cells. In clinical samples, we observed that patients with Snail(high)/p-Akt(high) tumors had the shortest survival times. In addition, a lower survival rate was also found in ADAM9(high) patients than in ADAM9(low) patients. Overall, our results provide new insights into the role of quercetin-induced molecular regulation in suppressing NSCLC metastasis and suggest that quercetin has potential therapeutic applications for metastatic NSCLC.
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