Thymulin (also known as Thymic Factor, as Thymalin or under its old name Facteur Thymique Serique) is a nonapeptide produced by two distinct epithelial populations in the thymus first described by Bach in 1977. It requires zinc for biological activity.
Thymulin biological activity and antigenicity depend upon the presence of the metal zinc in the molecule. This pharmacologically active metallopeptide induces the differentiation of T-cells and enhances several functions of the various T-cell subsets in normal or partially thymus-deficient recipients. Its effect on suppressor T-cells is, so far, the most remarkable and should be the first to find useful clinical applications. The peptide is a natural hormone, available in synthetic form. It is not toxic and one may foresee its clinical use as one of the major immunoregulatory agents in the near future.
Usage: process of hair growth utilizes many cellular and molecular mechanisms common to angiogenesis and wound healing. While studying the influence of thymosin beta-4 (Tβ4) on wound healing, Philp et al. accidentally found that hair grew more rapidly around the edges of wounds. In due course, they showed that Tβ4 induced rapid hair growth on the dorsal skin of healthy mice
