TNFSF15 and gastric adenocarcinoma: In our previous study, we identified two SNPs (−638A > G and -358 T > C) in the TNFSF15 promoter by direct sequencing, and found that -358 T > C variant changed the transcriptional activity of TNFSF15 and was significantly associated with the susceptibility to gastric adenocarcinoma [20].