Transforming Growth Factor Beta (TGF-β) is a protein that plays a crucial role in regulating various cellular processes, including cell growth, differentiation, and immune responses. It is involved in wound healing and tissue repair, helping to control inflammation and promote the formation of new tissue. TGF-β exists in several forms and is produced by many cell types, including immune cells and fibroblasts. Dysregulation of TGF-β signaling can lead to various diseases, including cancer and fibrosis, making it an important target for therapeutic research.