Abstract
Brain metastases (BM) are associated with poor prognosis in patients with non-small cell lung cancer (NSCLC). Considering that, LGAS8-AS1-mediated progression of BM was probed in NSCLC. The clinical characteristics of 60 NSCLC patients (30 without BM and 30 with BM) were analyzed. NSCLC patients with BM had higher levels of LGALS8-AS1 than NSCLC patients without BM. Depleting LGALS8-AS1 prevented NSCLC cell proliferation, migration, invasion, and angiogenesis in vitro, and NSCLC tumorigenesis and BM in vivo. LGALS8-AS1 targeted miR-885-3p to mediate Fascin actin-bundling protein 1 (FSCN1) expression. Restoring miR-885-3p inhibited NSCLC growth, angiogenesis, and BM, and FSCN1 induction rescued the performance of LGALS8-AS1 depletion on NSCLC cells. Our results provide new insights into LGALS8-AS1-mediated NSCLC metastasis and suggest that LGALS8-AS1 may be a useful biomarker for identifying NSCLC with metastatic potential.
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