Thymosin Alpha-1 is a biologically active peptide derived from prothymosin-alpha. Current hypotheses consider Thymosin Alpha-1 to be the main constituent of Thymosin Fraction-5, and as such it is considered to be the active component that restores the immune function in both athymic animals and animals with dysfunctional thymus glands. [Thymosin Alpha-1](https://en.wikipedia.org/wiki/Thymosin_%CE%B11 "thymosin alpha 1") was among the first peptide isolates of Thymosin Fraction-5 to be sequenced
How does Thymosin Alpha 1 improve anti-viral immune responses?
“Importantly, **Ta1 acts without overstimulation of cytokine production** and is generally well tolerated; it has an excellent safety profile and does not appear to induce the side effects and toxicities commonly associated with agents in this class such as interferon alpha and interleukin-2.” (1) “Clinical trials using Ta1 in the treatment of patients with immunodeficiency or cancer indicate that this agent is nontoxic, enhances immune
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