Background/objectives: Pancreatic ductal adenocarcinoma is a lethal malignancy, necessitating an understanding of its molecular mechanisms for the development of new therapeutic strategies. The tight junction protein claudin-1, known to influence cellular functions in various cancers and is considered a therapeutic target, remains unclear in pancreatic cancer.
Methods: This study assessed claudin-1 expression in resected pancreatic cancer samples, public databases, and pancreatic cancer cell lines.