Britannica AI Icon

plasmin

biology
Also known as: fibrinolysin

Quick Summary

Plasmin is a proteolytic enzyme found in the blood that plays a crucial role in dissolving blood clots. It is formed from its precursor, plasminogen, and is a key component of the body's fibrinolytic system, which is responsible for breaking down fibrin and fibrinogen. This process is essential for wound healing and preventing excessive clot formation.12

Fibrinolytic drugs, such as streptokinase, urokinase, and tissue plasminogen activator (t-PA), work by activating plasmin to dissolve clots. These agents are used therapeutically to treat conditions like deep vein thrombosis and heart attacks by restoring blood flow. However, excessive plasmin activity can lead to bleeding complications.23

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.