What is the role of integrins in cells?

Integrins play a crucial role in helping cells adhere to their surroundings, which is fundamental for maintaining the structure and function of tissues. These are transmembrane proteins that facilitate the binding between cells and the extracellular matrix, as well as between adjacent cells. This adhesion is essential for a variety of cellular processes including tissue formation, wound healing, and communication between cells. By anchoring cells to their substrate, integrins enable them to receive essential signals from their environment and contribute to their stability and overall health.

The other choices do not accurately represent the primary function of integrins. They do not directly facilitate cell division, transport nutrients, or provide protection from damage, although they may have indirect roles related to these processes due to their involvement in cell signaling and interaction with the extracellular environment.