YWHAZ and gastric cancer: Exosomal circNHSL1 promotes migration, invasion, and glutaminolysis of GC cells by targeting miR-149-5p/YWHAZ axis.318 Overexpression of exosomal circ-0032821from oxaliplatin-resistant GC cells promotes proliferation, migration, and invasion of GC cells by modulating miR-515-5p/SOX9 pathway.319 Notably, exosomal has-circ-0065149 is downregulated in GC patients.320