Thymulin is a peptide bioregulator of the thymus, aimed at restoring and balancing the immune system, especially in conditions of age-related changes and chronic stress. It works at the level of cellular regulation, supporting the natural mechanisms of immune renewal. The peptide promotes the normalization of the T-cell link, improves the adaptive capabilities of the body and helps restore the immune system after stress, diseases and debilitating conditions. Thymulin does not boost the immune system, but returns it to physiologically correct functioning. It is widely used in immune support programs, prevention of age-related decline in protective functions, and in complex anti-aging protocols, where mild effects and long-term effects are important. Thymulin is a peptide for systemic strengthening of the immune foundation and increasing the body's resilience.
General information
| Features | Values |
|---|---|
| The peptide sequence | Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn-OH |
| The molecular formula | C33H54N12O15 |
| Molecular weight | 858.86 g/mol |
| CAS Number |
|
| PubChem CID | 3085284 |
| Synonyms | Thymalin, Thymulin, Nonathymulin |
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Product Usage
This product is intended solely for research purposes. All product information provided on this website is intended for educational purposes.
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Thymulin is a zinc-dependent nonapeptide hormone that is produced by the epithelial cells of the thymus and historically also known as FTS. Its biological activity directly depends on the presence of zinc in an equimolar ratio, and the molecule itself is considered primarily as a regulator of T-cell maturation and function, as well as an important link between the immune, nervous, and endocrine systems. Reviews describe thymulin not just as an immune peptide, but as a signaling molecule of the thymus-neuroendocrine axis, which makes it interesting for studies of immunomodulation, inflammation, neuroimmune interactions, and age-related decline in thymus function. The thymus–neuroendocrine axis: physiology, molecular biology, and therapeutic potential of thymus—like peptide thymulin - PMC
Immunomodulation
The main research area of thymulin is related to its effect on the differentiation and functional activity of T-lymphocytes. Classical reviews indicate that active zinc-thymulin supports intrathymic and extrathymic T-cell differentiation and participates in the regulation of the immune response, especially in conditions of impaired thymic function. That is why thymulin has long been considered as one of the key molecules of thymic immunoregulation and as a model for studying age-related thymus involution. The thymus–neuroendocrine axis: physiology, molecular biology, and therapeutic potential of thymus—like peptide thymulin - PMC
Neuroendocrine regulation
A separate interest in thymulin is due to the fact that it is closely embedded in the thymus, the neuroendocrine axis. Publications show that thymulin production and secretion depend on neuroendocrine signals, and the peptide itself, in turn, is able to influence pituitary and central regulatory mechanisms. Due to this, thymulin is more correctly described not just as an immune factor, but as a neuroimmune bioregulator that links the state of the thymus with stress and hormonal regulation of the body. The thymus–neuroendocrine axis: physiology, molecular biology, and therapeutic potential of the thymus—like peptide thymulin - PMC
Anti-inflammatory effect
Thymulin is also being studied as an anti-inflammatory peptide. Studies and reviews have reported that it can enhance anti-inflammatory signals and suppress pro-inflammatory cytokines, due to which it is considered as a promising molecule for research on chronic inflammation and immunodisregulation. Some experimental data also show a pronounced anti-inflammatory effect in thymulin-related peptides in models of inflammation and hyperalgesia. The immunomodulatory role of thymulin in lung diseases — PubMed
Pain and neuroinflammation
Another notable trend is related to inflammatory pain. In a 2019 preclinical study, thymulin attenuated inflammatory pain and was associated with modulation of spinal inflammatory signaling, while earlier publications showed a decrease in hyperalgesia and a decrease in the concentration of proinflammatory cytokines. This has increased interest in thymulin as a molecule at the interface of immunology, pain, and neuroinflammation. Thymulin therapy relieves inflammatory pain by modulating cellular and molecular signaling pathways of the spinal cord — PubMed
Pulmonary and systemic inflammatory models
Thymulin has also been studied in the respiratory area. A review on lung diseases indicates that thymulin has a selective immunomodulatory effect, enhancing anti-inflammatory and suppressing pro-inflammatory cytokines, and more recent work on thymulin gene therapy has shown pronounced anti-inflammatory and antifibrotic effects in chronic lung models. This makes it interesting for studies of respiratory tract inflammation and tissue remodeling. The immunomodulatory role of thymulin in lung diseases — PubMed
Zinc and biological activity
An important feature of thymulin is that its activity is strongly related to zinc. Without zinc, the nonapeptide loses its full biological activity, and the zinc-dependent status of the molecule itself is considered one of its key biochemical characteristics. This is a good emphasis for the description on the website, because it distinguishes thymulin from most other thymic peptides. The thymus–neuroendocrine axis: physiology, molecular biology, and therapeutic potential of thymus—like peptide thymulin - PMC
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