Heparan sulfate is widely used in biomedical research and therapeutic applications due to its role in regulating various biological processes. It is commonly employed in studies related to cell signaling, as it interacts with growth factors, cytokines, and extracellular matrix proteins, influencing cell proliferation, differentiation, and migration. In drug development, heparan sulfate is explored for its ability to enhance the delivery of therapeutic agents, particularly in targeting specific tissues or cells. It is also investigated for its potential in wound healing and tissue regeneration, given its involvement in extracellular matrix remodeling. Additionally, heparan sulfate is studied in the context of viral infections, as it serves as a co-receptor for many viruses, offering insights into antiviral strategies. Its anti-inflammatory and anticoagulant properties further make it a candidate for treating conditions like thrombosis and inflammatory diseases.