Peptide · Research Monograph · 28-amino-acid thymic peptide

Thymosin Alpha-1

A thymic peptide that strengthens and balances immunity

Thymosin Alpha-1 is a natural thymic peptide and one of the most studied immune modulators — researched for strengthening and rebalancing the immune system's response to infection, inflammation, and disease.

For laboratory research use only — not for human or animal use

Available in the Eon catalog — Thymosin Alpha-1 from $85.00

Molecular data

Molecular formulaC129H215N33O55
Molecular weight3108.29 Da
SequenceSDAAVDTSSEITTKDLKEKKEVVEEAEN
Sequence length28 residues
CAS / identifier62304-98-7
Physical formLyophilized Powder
Available sizes10mg

How it works

T-Cell Maturation

Thymic Immune Modulation

Thymosin Alpha-1 promotes the maturation and differentiation of T-lymphocytes and modulates the balance of T-cell subsets in preclinical immunology models.

  • Promotes T-cell differentiation
  • Modulates CD4+/CD8+ balance
  • Restores lymphocyte counts in immunosuppressed models
TLR Signaling

Toll-Like Receptor Activation

Research indicates Tα1 signals through Toll-like receptors (notably TLR2 and TLR9) on dendritic cells and monocytes, influencing innate-immune activation and cytokine expression.

  • Engages TLR2 / TLR9 pathways
  • Dendritic-cell maturation
  • Modulates cytokine profiles
Cytokine / NK

NK & Th1 Cytokine Modulation

In-vitro and animal studies report enhanced natural-killer-cell activity and a shift toward a Th1 cytokine profile (IFN-γ, IL-2), supporting antiviral and antitumour immune-response research.

  • Increased NK-cell activity
  • Th1 cytokine shift (IFN-γ, IL-2)
  • Studied in viral and tumour models

What the research shows

Immunology

T-Cell Research

Used to study thymic-dependent T-lymphocyte maturation and immune reconstitution in immunosuppressed animal models.

Garaci et al. 2007

Antiviral

Viral-Response Models

Investigated in hepatitis and other viral models for its influence on innate and adaptive antiviral immunity.

Loggi et al. 2020

Oncology (preclinical)

Tumour-Immunity Models

Studied as an immune adjuvant in preclinical tumour models for enhancement of NK and cytotoxic T-cell responses.

Costantini et al. 2019

Inflammation

Cytokine Regulation

Examined for modulation of inflammatory cytokine networks and dendritic-cell function in vitro.

Romani et al. 2012

Specification

Strength10mg
molecular_formulaC129H215N33O55
Molecular Weight3108.29 g/mol
Purity>99% (HPLC)
FormLyophilized Powder
Lot NumberAssigned on shipment
Verified Purity>99%
Quantity10mg
Molecular FormulaAvailable on request
AppearanceWhite to off-white powder
Analysis DateAvailable on request
Stability24 months from manufacture date when stored properly
Lyophilized StorageStore at -20°C, protected from light
Reconstituted StorageStore at 2-8°C, use within 30 days

Frequently asked questions

What is Thymosin Alpha-1?

Thymosin Alpha-1 (Tα1) is an acetylated 28-amino-acid peptide originally isolated from thymic tissue (thymosin fraction 5). It is a well-characterized immunomodulator studied for its effects on T-cell maturation, Toll-like-receptor signaling, and innate/adaptive immune balance in cell-culture and animal models.

Is Thymosin Alpha-1 FDA approved?

No. Thymosin Alpha-1 is not approved by the FDA for any use in the United States. A synthetic form (thymalfasin) is approved as an immunomodulator in a number of other countries, but this product is supplied strictly as a reference compound for in-vitro laboratory research.

How should Thymosin Alpha-1 be stored?

Store the lyophilized powder at −20°C, protected from light; it is stable for approximately 24 months from manufacture. After reconstitution, keep refrigerated at 2–8°C and use within 30 days. This is storage guidance for the researcher, not a shipping requirement.

What purity is this Thymosin Alpha-1?

Each lot is ≥99% pure by HPLC with identity confirmed by mass spectrometry and ships with third-party analytical documentation of purity, net peptide content, and endotoxin screening.

Literature

  • PubMed Thymosin alpha 1: an endogenous regulator of inflammation, immunity, and tolerance 2007 · Garaci E et al.
  • PubMed Thymosin alpha 1 activates dendritic cells via Toll-like receptor 9 signaling 2004 · Romani L et al.
  • PubMed Thymosin alpha 1: a comprehensive review of the literature 2012 · King R, Tuthill C
  • PubMed Thymosin alpha 1 in the treatment of viral infections 2020 · Loggi E et al.

For laboratory research use only. Not a drug, supplement, or medical product; not for human or animal use. All findings referenced are from published preclinical/laboratory research.