Stromal cells are a type of connective tissue cell found in various organs throughout the body. They provide structural support and play a crucial role in maintaining the tissue environment. These cells can produce extracellular matrix components, which help in tissue repair and regeneration. In addition to their structural functions, stromal cells are involved in immune responses and the regulation of other cell types. They can influence the behavior of immune cells and stem cells, contributing to processes like inflammation and healing. Their diverse roles make them essential for the proper functioning of many tissues.