G3BP1 and gastric cancer: Immunofluorescence staining revealed the colocalization of RACK1, G3BP1, and TM4SF1-AS1 in GC cells overexpressing TM4SF1-AS1 (SNU638-tet-TM4SF1-AS1-MS2), suggesting that RACK1 is sequestered within SGs (Fig. 6A).