tumor tissues; matched non-cancerous tissues; NSCLC tissues; paracarcinoma tissues
BEAS-2B; A549; PC9
cell line-derived xenograft
proliferation (promotes); cell cycle (promotes); apoptosis (inhibits); migration (promotes); invasion (promotes); metastasis (promotes); ceRNA regulation (promotes)
RT-qPCR; RNase R Treatment; Actinomycin D / DRB Stability Assay; Nuclear-Cytoplasmic Fractionation; Clinical Sample Validation; Transfection; CCK8; Colony Formation Assay; Cell Cycle Assay; Annexin V/PI Flow Cytometry; Transwell Assay; Luciferase Reporter Assay; RIP (RNA Immunoprecipitation); RNA Pull-Down; Western Blot; In Vivo Animal Model; Bioinformatics Analysis
Higher circ_0020123 expression was associated with advanced TNM stages, metastasis, tumor size, pathological type, clinical stage, differentiation, and lymph node metastasis; circ_0020123 siRNA was suggested as a potential therapeutic molecular for NSCLC molecular targeted therapy.
Circ_0020123 is up-regulated in NSCLC tissues and cell lines and is associated with more advanced clinicopathological features. It promotes NSCLC cell proliferation, cell cycle progression, migration, invasion and xenograft tumor growth while suppressing apoptosis. Mechanistically, cytoplasmic circ_0020123 acts as a ceRNA for miR-940, thereby increasing KIAA1522 expression through the circ_0020123/miR-940/KIAA1522 axis.
0.8279
Circ_0020123 promotes NSCLC tumorigenesis via up-regulating KIAA1522 expression through miR-940.
combined biological and clinical study