Laminin is a protein that plays a crucial role in the structure and function of various tissues in the body. It is a key component of the extracellular matrix, which provides support and anchorage for cells. Laminin helps cells adhere to one another and to the surrounding matrix, facilitating communication and stability within tissues. This protein is composed of three different chains, forming a cross-shaped structure. Laminin is found in many tissues, including muscle, nervous, and epithelial tissues, and is essential for processes like cell differentiation, migration, and tissue repair. Its importance in maintaining tissue integrity makes it a significant focus in medical research.