Kallikrein, derived from porcine pancreas, is an enzyme primarily used in biochemical and medical research due to its role in the kallikrein-kinin system, which regulates blood pressure and inflammation. It cleaves kininogens to produce bradykinin, a peptide that promotes vasodilation, making it valuable in studies on cardiovascular diseases, hypertension, and circulatory disorders. Kallikrein is also investigated for its potential in wound healing and tissue repair, as it supports processes such as cell proliferation and angiogenesis. In some diagnostic applications, it aids in understanding inflammatory and renal conditions related to the kinin system.