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NCI Drug Dictionary


recombinant thymosin 
A recombinant form of a polypeptide chemically identical to or similar to the hormone secreted by the thymus gland. Thymosin is generally known to have functions in the preprocessing of T cells and the development of B cells to plasma cells to produce antibodies. In particular, the predominant form of thymosin, beta 4 thymosin, is the principal actin-sequestering protein that plays an important role in functions that involve actin molecules, such as maintenance of cell shape, cytoplasmic organization, cell movement, and cell division. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
Synonyms:human thymosin -fraction 5
human thymosin -fraction alpha 1
US brand name:Zadaxin™