Glypican-1 is a membrane-bound heparan sulfate proteoglycan found on the cell surface. It plays a critical role in regulating various cellular processes, including cell proliferation, migration, adhesion, and signaling. Glypican-1 has been implicated in several disease processes, including cancer progression, inflammation, and neurological disorders. Research in this area focuses on elucidating the specific functions of glypican-1, its mechanisms of action, and its potential as a therapeutic target for various diseases.