On the other hand, HLA-G*01:01:01 was not associated with gastric adenocarcinoma in an Iranian cohort, but other HLA-G*01:01 family alleles, such as HLA-G*01:01:02 (risk), HLA-G*01:01:03 (protective), and HLA-G*01:01:08 (protective) showed association with this type of gastric tumor [30]. This evidence concerns the gene HLA-G and gastric adenocarcinoma.