Thymosin is a hormone secreted from the thymus. Its primary function is to stimulate the production of T cells, which are an important part of the immune system. Thymosin also assists in the development of B cells to plasma cells to produce antibodies. The predominant form of thymosin, thymosin beta-4, is an actin, a cell building protein.
One of the main mechanisms of action of Thymosin Beta-4 is its regulation of Actin. This cell-building protein is an essential component of cell structure and movement which leads to its role in tissue repair. Tβ 4 has been found to play an important role in protection, regeneration, and remodeling of injured or damaged tissues. After an injury, Tβ 4 is released by platelets and numerous other types of cells to protect the most damaged cells and tissues and to reduce inflammation and microbial growth.