Product Background |
Claudins (CLDNs) are tetraspan proteins with a short cytoplasmic N‑terminus, two extracellular loops and a C‑terminal cytoplasmic domain. They function as a physical barrier or gate of small molecules and as signaling platforms to coordinate diverse cellular behaviors. CLDNs are useful cancer biomarkers, as they are frequently upregulated and are associated with malignant traits of cancers, such as invasion, migration, metastasis and chemoresistance. Claudin‑9 (CLDN9) is barely distributed in normal adult tissues but is ectopically expressed in various cancer types. |