RELA and gastric cancer: In order to confirm the role of NF-κB pathway in the activation and the enhancement of cell proliferation, and migration and invasion of normal GC fibroblasts promoted by activin B, we used NF-κB/p65 inhibitor, JSH-23 (MCE, HY-13,982), to treat fibroblasts stimulated by Activin B or co-cultured with GC cells (HGC-27 shNC/HGC-27 shINHBB).