Elastase, derived from human leukocytes, is widely utilized in biochemical research for its ability to break down elastin, a key protein in connective tissues. This enzyme is particularly valuable in studies focused on understanding tissue remodeling, inflammation, and diseases such as emphysema and atherosclerosis, where elastin degradation plays a critical role. It is also employed in laboratory settings to isolate cells or tissues by digesting elastin-rich extracellular matrices, facilitating the study of cellular behavior and interactions. Additionally, elastase is used in the development of therapeutic agents targeting elastin-related disorders, aiding in the screening of potential inhibitors or treatments. Its specificity for elastin makes it a crucial tool in both basic and applied biomedical research.