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Research monograph · 28-amino-acid thymic peptide
Thymosin Alpha-1Research monograph
Immune Response Studies
This monograph collects what the published literature reports about Thymosin Alpha-1 — its mechanisms, the areas it is studied in, its molecular record and the sources behind them. It occurs naturally as a cleavage product of a larger precursor protein, and research examines T-cell signaling and immune-response endpoints — making it one of the more clinically characterized compounds in this catalog.
For laboratory research use only — not for human or animal use
Mechanisms
How Thymosin Alpha-1 works
Thymic Immune Modulation
T-Cell Maturation
First isolated from the thymus, where T-cells mature. It occurs naturally as a cleavage product of a larger precursor, and T-cell maturation remains the endpoint it is most associated with.
T-cell differentiation promoted
CD4+/CD8+ balance modulated
Lymphocyte counts restored in immunosuppressed models
Toll-Like Receptor Activation
TLR Signaling
Reported to signal through TLR2 and TLR9 on dendritic cells — the innate arm — which is how a peptide characterized in adaptive immunity came to be studied on both sides.
Engages TLR2 and TLR9
Dendritic cells mature in response
Cytokine profiles modulated
NK & Th1 Cytokine Modulation
Cytokine / NK
Natural-killer cell activity and a Th1-weighted cytokine profile are the measured outputs, making this among the more clinically characterized compounds in the catalog.
Natural-killer cell activity raised
Th1 shift in IFN-g and IL-2
Studied in viral and tumour models
Studied applications
What Thymosin Alpha-1 is researched for
Immunology
T-Cell Research
T-cell maturation is the endpoint the peptide is most associated with, following from its isolation from the thymus.
Garaci et al. 2007
Antiviral
Viral-Response Models
Antiviral endpoints are measured through immune activation rather than through any direct action on the virus.
Loggi et al. 2020
Oncology (preclinical)
Tumour-Immunity Models
Tumour models measure immune-mediated response, an application that follows from the same T-cell mechanism.
Costantini et al. 2019
Inflammation
Cytokine Regulation
A Th1-weighted cytokine profile is the measured output, alongside natural-killer cell activity.
Romani et al. 2012
What the published work measures
The endpoints reported across the literature for this compound. The figures belong to the individual papers, not to us.
T-Cell Proliferation (in vitro)
NK-Cell Activity Increase
IFN-γ / IL-2 Expression
Dendritic-Cell Maturation
Reference values
Thymosin Alpha-1 molecular data
Scroll for full molecular data →
Molecular weight
3,108.29 g/mol
Molecular formula
C129H215N33O55
Physical form
Lyophilized Powder
Documented purity
Quantified by HPLC, reported per lot
Storage
Store at -20°C, protected from light
Available sizes
10mg
FAQ
Common questions about Thymosin Alpha-1
What is Thymosin Alpha-1?
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Thymosin Alpha-1 is a 28-residue peptide first isolated from the thymus, the organ where T-cells mature. It occurs naturally as a cleavage product of a larger precursor protein, and research examines T-cell signaling and immune-response endpoints — making it one of the more clinically characterized compounds in this catalog.
What is Thymosin Alpha-1 researched for?
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Published research on Thymosin Alpha-1 concentrates on T-Cell Research, Viral-Response Models, Tumour-Immunity Models and Cytokine Regulation. Each of those areas is summarised further up this page with the citation it comes from, and the full reference list — 4 indexed publications — sits at the bottom. Study designs and concentrations vary considerably between publications, so the primary sources are worth reading directly.
How does Thymosin Alpha-1 work?
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The literature describes Thymosin Alpha-1 acting across Thymic Immune Modulation, Toll-Like Receptor Activation and NK & Th1 Cytokine Modulation, reported respectively as T-Cell Maturation, TLR Signaling and Cytokine / NK. Those pathways are drawn from preclinical models rather than clinical work, and they describe what has been observed rather than a settled mechanism — the individual pathway cards above cite what each one is based on.
What are the molecular specifications for Thymosin Alpha-1?
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Thymosin Alpha-1 has a molecular formula of C129H215N33O55 and an average mass of 3108.29 g/mol. It is indexed under CAS 62304-98-7. It ships as lyophilized powder. Those are nominal reference values for the parent compound. The identity of the specific material you receive is confirmed by mass spectrometry and reported on that lot's certificate.
How should Thymosin Alpha-1 be stored and reconstituted?
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Store the sealed vial at Store at -20°C, protected from light, protected from light and moisture, and let it reach room temperature before opening so condensation does not form on cold powder. Keep reconstituted solution refrigerated and avoid repeated freeze-thaw cycles — solutions are far less stable than lyophilized powder.
Is Thymosin Alpha-1 approved for human use?
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No. Thymosin Alpha-1 is supplied strictly for in-vitro laboratory research and development. It is not a drug, food, supplement or cosmetic, it has not been evaluated by the FDA, and it is not intended for human or animal consumption, ingestion, injection or any in-vivo use. Ordering confirms you are a qualified researcher or institution purchasing on that basis.
Cited sources
Peer-reviewed literature
Independent published research indexed from PubMed — not Routine Peptides claims.
Every production run is analyzed by an independent laboratory, and the certificate for your lot travels with the order — not a catalog-wide document, and not a summary written by us.