DSP (Desmoplakin) is a key protein that serves as a structural linker within cells, crucial for the integrity and function of desmosomes—specialized cell-cell adhesion complexes found in epithelial and cardiac tissues. DSP plays an essential role in maintaining mechanical strength and cellular cohesion by anchoring intermediate filaments to desmosomal cadherins. This connection supports tissue stability in areas subjected to high mechanical stress, such as the skin, heart, and certain mucous membranes. Mutations in the DSP gene are associated with various genetic disorders, including cardiomyopathies and skin diseases, highlighting its significance in tissue architecture and function.