Thymulin (also known as Facteur Thymique Serique or FTS) is a nonapeptide hormone produced exclusively by thymic epithelial cells. It requires zinc for biological activity, forming a zinc-thymulin complex (Zn-FTS). Thymulin plays a crucial role in T-lymphocyte differentiation and immune regulation. Serum thymulin levels decline significantly with age, correlating with thymic involution and age-related immune dysfunction. The peptide has been studied for immune restoration in aging, autoimmune diseases, and immunodeficiency conditions. Thymulin also demonstrates anti-inflammatory and analgesic properties beyond its primary immunomodulatory functions.
| Research Status | Preclinical |
|---|---|
| Half-Life | Unknown |
| Administration | Subcutaneous injection |
| Typical Dosage | 1-10 mcg |
| Molecular Weight | 857.9 Da (without zinc) |
| Molecular Formula | C33H54N10O16 |
Zinc-dependent peptide that modulates T-cell development and immune function.
All information is presented for Research Use Only (RUO). Not medical advice.