XCR1 and gastric cancer: Moreover, PCED1B-AS1, as a ceRNA, up-regulates C-X-C motif chemokine receptor 1 (CXCR1) by competitively binding to miR-215-3p, leading to enhanced malignancy of GC cells, and this finding indicates that PCED1B-AS1/miR-215-3p/CXCR1 axis may be a potential mechanism involved in the progression of GC (Ren et al., 2021).