Fibronectin from human plasma is widely used in cell culture applications to promote cell adhesion, spreading, and growth. It is particularly valuable in research involving stem cells, where it helps maintain cell viability and differentiation. In tissue engineering, fibronectin serves as a critical component for creating biomimetic scaffolds that support tissue regeneration. It is also utilized in wound healing studies to understand its role in cell migration and tissue repair. Additionally, fibronectin is employed in diagnostic assays to study cell-matrix interactions and to develop therapeutic strategies targeting extracellular matrix components.