HS6ST2 and gastric adenocarcinoma: HS6ST2 expression was lower in acute myeloid leukemia (LAML), adrenocortical carcinoma (ACC), ovarian serous cystadenocarcinoma (OV), pancreatic adenocarcinoma (PAAD), KICH, KIRC, KIRP, and stomach adenocarcinoma (STAD) but higher in the other 11 tumors (Fig. 1B).