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THYMOSIN ALPHA-1
Thymosin Alpha-1 Thymosin Alpha-1 is a synthetic acetylated 28-amino acid peptide originally isolated from thymic tissue. Preclinical studies in cell cultures and animal models indicate that Thymosin Alpha-1 enhances immune function by stimulating T-cell maturation, increasing cytokine production, and modulating innate and adaptive immune responses in various immunological challenge models.[1][2] Key Research Areas T-Cell Activation…
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Thymosin Alpha-1
Thymosin Alpha-1 is a synthetic acetylated 28-amino acid peptide originally isolated from thymic tissue. Preclinical studies in cell cultures and animal models indicate that Thymosin Alpha-1 enhances immune function by stimulating T-cell maturation, increasing cytokine production, and modulating innate and adaptive immune responses in various immunological challenge models.[1][2]
Key Research Areas
- T-Cell Activation & Maturation – In rodent models of immunosuppression and viral infection, Thymosin Alpha-1 has been shown to promote T-cell differentiation, increase CD4+ and CD8+ cell counts, and enhance thymic output in aging or thymectomized animals.[3][4]
- Antiviral & Antimicrobial Defense – Preclinical investigations demonstrate Thymosin Alpha-1 improves resistance to viral pathogens (e.g., influenza, hepatitis models) by upregulating interferon-γ, IL-2, and NK cell activity in infected animal models.[5][6]
- Immune Modulation & Inflammatory Regulation – Animal studies suggest Thymosin Alpha-1 balances pro- and anti-inflammatory cytokines, reduces excessive inflammation in sepsis or autoimmune models, and supports immune homeostasis under stress conditions.[7][8]
Product Specifications
| CAS Number | 62304-98-7 |
| Molecular Formula | C129H215N37O55 |
| Molar Mass | 3108.32 g/mol |
| Sequence | Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn |
| Synonyms | Thymalfasin, Zadaxin (brand name), TA-1 |
| Purity | ≥99% (HPLC) |
| Form | Lyophilized powder |
| Storage | −20°C (long-term), 2–8°C (reconstituted) |
| Solubility | Bacteriostatic water or sterile saline for reconstitution |
References
- 1. Goldstein AL, et al. Thymosin alpha1: past, present and future. Ann N Y Acad Sci. 2005. PubMed
- 2. Matteucci C, et al. Thymosin alpha 1: A comprehensive review of the literature. World J Virol. 2017. PubMed
- 3. Baumann CA, et al. Thymosin alpha1 stimulates T-cell maturation in aged mice. Mech Ageing Dev. 1997. PubMed
- 4. Tuthill C, et al. Thymosin alpha1 effects on T-cell subsets in normal and immunosuppressed animals. Ann N Y Acad Sci. 2000. PubMed
- 5. Hadden JW, et al. Thymosin alpha1 enhances immune responses to influenza virus in mice. Int J Immunopharmacol. 1990. PubMed
- 6. Romani L, et al. Thymosin alpha1 enhances immune responses to hepatitis B vaccine in mice. Vaccine. 1995. PubMed
- 7. Matteucci C, et al. Thymosin alpha 1 reduces cytokine storm in sepsis models. Int Immunopharmacol. 2019. PubMed
- 8. Tuthill C, et al. Thymosin alpha1 in experimental autoimmune encephalomyelitis. J Neuroimmunol. 2002. (Immune modulation data)





