Used in research and diagnostic applications to detect and inhibit matriptase, a serine protease implicated in cancer progression, particularly in epithelial cancers such as breast, prostate, and ovarian cancer. This antibody serves as a critical tool in immunoassays, immunohistochemistry, and flow cytometry to study matriptase expression and localization in tissue samples. It is also employed in functional studies to block matriptase activity, helping to elucidate its role in tumor invasion, metastasis, and cell signaling pathways. Due to its specificity, it supports the development of targeted therapies and acts as a reference standard in the validation of anti-matriptase drug candidates.