Plasmin, derived from human plasma, is primarily utilized in medical and biotechnological applications due to its fibrinolytic properties. It plays a critical role in breaking down blood clots by degrading fibrin, a key component of clots. This makes it valuable in treating thromboembolic disorders, such as deep vein thrombosis, pulmonary embolism, and acute ischemic stroke. In research, plasmin is used to study fibrinolysis mechanisms and to develop therapeutic agents targeting clot dissolution. Additionally, it is employed in cell culture techniques to dissociate cells from tissues or surfaces, aiding in the isolation of specific cell types for experimental purposes. Its ability to cleave extracellular matrix proteins also makes it useful in tissue engineering and regenerative medicine.