Thymosin Alpha-1
Thymosin α1 (Tα1)
Immune-modulating thymic peptide.
Half-life
~ short
Mol. weight
3108.4 g/mol
Sequence
Ac-Ser-Asp-Ala-Ala-Val-Val-Val-Ala-Glu-Ile-Thr-Ser-Leu-Ser-Asp-Gly-Leu-Glu-Val-Leu-Glu-Glu-Ala-Glu-Asn-OH
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Overview
A 28-amino-acid peptide originally isolated from the thymus that modulates immune function by promoting T-cell maturation and dendritic cell activity, researched for chronic infections (including viral hepatitis), immune deficiency, and as an adjunct in certain diseases. It is immunomodulatory rather than simply stimulatory — it helps balance the immune response toward effective pathogen clearance without excessive inflammation.
Mechanism of action
Thymosin Alpha-1 promotes the maturation and function of T cells and dendritic cells, the coordinators of adaptive immunity. It enhances T-helper and cytotoxic responses, stimulates dendritic cell antigen presentation, and tilts the immune balance toward effective pathogen clearance while tempering runaway inflammation. This modulatory — rather than purely stimulatory — profile is why it has been studied in settings of both immune deficiency (chronic infection) and immune dysregulation.
Researched benefits
- Supports T-cell maturation and dendritic cell function
- Studied for chronic infections (e.g. viral hepatitis)
- Immunomodulatory, not simply stimulatory
Considerations
- Research-stage in many regions; approved in some countries
- Quality sourcing critical
- Professional guidance advised
Key Academic Literature & Studies
Search more in PubMedPeer-reviewed citations and clinical trials evaluating Thymosin Alpha-1 in scientific literature.
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View Thymosin Alpha-1 index on PubMed (NCBI)