Anti-CST2 Antibody

This polyclonal reagent from Antibodies.com targets human cystatin SA (CST2), a secreted cysteine protease inhibitor best known for its abundance in saliva and other exocrine secretions. Raised in rabbit and supplied as 100 µl of unconjugated antiserum, the antibody is validated for Western blot and immunofluorescence workflows on human samples, supporting studies of protease regulation in oral and epithelial tissues.

CST2 has been investigated as a biomarker candidate in head and neck squamous cell carcinoma and examined in the context of inflammation-driven tissue remodeling, giving the antibody translational relevance for oncology and mucosal biology research. The unconjugated format allows flexible pairing with HRP-, fluorophore-, or biotin-conjugated secondary reagents, while the polyclonal nature provides broader epitope coverage for detection of full-length CST2 in cell lysates and fixed tissue sections.