Transforming Growth Factor Beta (TGF-β) is a multifunctional cytokine that plays a crucial role in cell growth, differentiation, and immune regulation. It is significant in clinical practice due to its involvement in fibrosis, cancer progression, and immune responses, making it a target for therapeutic interventions. Elevated TGF-β levels are associated with conditions such as systemic sclerosis, where it contributes to excessive collagen deposition and tissue scarring.