Elastase is an enzyme that breaks down elastin, a protein found in connective tissues that provides elasticity and resilience to skin, lungs, and blood vessels. It is produced primarily by pancreas and white blood cells during inflammation. Elastase plays a crucial role in various physiological processes, including tissue remodeling and immune response. In addition to its natural functions, elastase is also involved in certain diseases. Excessive elastase activity can lead to tissue damage and is associated with conditions like chronic obstructive pulmonary disease (COPD) and emphysema. Monitoring elastase levels can help in diagnosing and managing these health issues.