OCT 13, 2026 · JOURNAL ARTICLE
Claudin 18.2: From a Tight Junction Protein to a Breakthrough Target in Solid Tumor Immunotherapy
Biomarkers
Claudin 18.2 (CLDN18.2), a tight junction protein largely confined to normal gastric mucosa, is overexpressed and mislocalized on the surface of gastric, gastroesophageal, pancreat