What is the role of glycosaminoglycans (GAGs) in the dermis?

Glycosaminoglycans (GAGs) play a crucial role in the structure and function of the dermis by supporting collagen and elastin fibers within the extracellular matrix. These molecules provide hydration and help maintain the turgor of the skin by binding water, which is essential for skin elasticity and resilience. By anchoring to collagen and elastin, GAGs help create a framework that allows these structural proteins to function effectively, promoting the overall integrity and strength of the skin. This role is vital for maintaining the skin's mechanical properties and its ability to withstand various stresses.

The other roles mentioned, while important for skin health, do not accurately describe the primary function of GAGs. For instance, while GAGs can contribute to skin hydration, the specific function of supporting collagen and elastin fibers is critical to understanding their role within the dermis.