GC tissues; corresponding non-cancer tissues; tumour samples
GES-1; SGC-7901; MGC-803; BGC-823; MKN28
cell line-derived xenograft
ceRNA regulation (promotes); proliferation (promotes); invasion (promotes); apoptosis (inhibits)
RT-qPCR; Microarray; Clinical Sample Validation; Transfection; MTT; Colony Formation Assay; Transwell Assay; In Vivo Animal Model; Luciferase Reporter Assay; circRIP; IHC (Immunohistochemistry); Survival Analysis; Bioinformatics Analysis
High circ_0067997 expression is associated with poor overall survival, TNM stages, and differentiation grade in GC, suggesting potential diagnostic and therapeutic value.
Hsa_circ_0067997 is up-regulated in gastric cancer tissues and cell lines and its high expression is associated with worse overall survival. Functionally, it promotes GC cell viability, colony formation, invasion, and xenograft tumor growth. Mechanistically, circ_0067997 acts as a sponge for miR-515-5p, upregulates XIAP, and drives GC progression through the circ_0067997/miR-515-5p/XIAP axis.
0.7967
Hsa_circ_0067997 promotes the progression of gastric cancer by inhibition of miR-515-5p and activation of X chromosome-linked inhibitor of apoptosis (XIAP).
combined biological and clinical study