PRKD1 and gastric adenocarcinoma: In addition, we identified PRKD1 as a prognostic biomarker in STAD, THCA, and LICH, in which low PRKD1 expression is associated with good prognosis, and in KIRC, in which high PRKD1 expression is associated with good prognosis. Although these findings underscore the clinical relevance of PRKD1, further experimental validation is necessary to establish its future clinical utility.