Elastase, Human Neutrophil, is primarily utilized in research settings to study its role in inflammatory diseases and tissue remodeling. It is often employed to investigate conditions such as chronic obstructive pulmonary disease (COPD), cystic fibrosis, and acute respiratory distress syndrome (ARDS), where excessive elastase activity leads to tissue damage. Researchers use it to model these diseases in vitro and in vivo, helping to understand the mechanisms of elastin degradation and the development of potential therapeutic inhibitors. Additionally, it is applied in biochemical assays to measure enzyme activity and evaluate the efficacy of elastase inhibitors. In drug discovery, it serves as a target for developing treatments aimed at controlling its activity in pathological conditions.