Description
What Is Thymogen?
Thymogen is a synthetic dipeptide bioregulator with the amino acid sequence Glu-Trp (EW), consisting of glutamic acid and tryptophan, developed by Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology. Thymogen targets the thymus gland and immune system function, serving as a thymus bioregulator and immunomodulator for immune modulation that tunes gene expression patterns in T-lymphocytes, thymic epithelial cells, and other critical immune cells. It is one of the earliest and most extensively studied compounds in the Khavinson bioregulator peptides program, often discussed alongside other integrative bioregulator dipeptides, with published research spanning immune mixing, anti-tumor immune surveillance, and thymic involution reversal in lab and clinical gerontology settings.
Thymogen should be distinguished from thymogen alpha 1 (Thymosin Alpha-1, Thymalfasin), a 28-amino acid peptide derived from prothymosin alpha that is an approved pharmaceutical in some countries for hepatitis B and immunodeficiency conditions. While both compounds target immune function and immune modulation, they differ largely in cell-level weight, sequence, mechanism, and control status. Thymogen (EW dipeptide) , also known in some clinical contexts as oglufanide, operates through the Khavinson epigenetic bioregulation mechanism — tuning transcription through peptide-DNA interaction — while Thymosin Alpha-1 acts through direct T-cell start and toll-like receptor signaling. PrymaLab Thymogen 20mg is supplied exclusively for lab research.
Thymogen 20mg: Key Specifications
| Specification |
Detail |
| Compound |
Thymogen (dipeptide bioregulator, EW) |
| Sequence (L-Glutamic Acid and L-tryptophan) |
Glu-Trp (EW) |
| Quantity |
20mg |
| Target Tissue |
Thymus, T-lymphocytes, immune system |
| Class |
Khavinson bioregulator peptide (short control peptide) |
| Purity |
≥98% (HPLC-verified per batch) |
| Testing |
HPLC, mass spectrometry, identity check |
| Form (Lyophilized powder) |
Freeze-dried powder |
| Storage |
Store at −20°C desiccated; protect from light |
| Intended Use |
Lab research only — not for human or veterinary treatment use |
How Thymogen Works: Bioregulator Mechanism of Action
Thymogen operates through the Khavinson bioregulation mechanism — direct interaction with paired DNA sequences in the promoter regions of immune-related genes. The EW dipeptide targets gene clusters governing T-lymphocyte differentiation, thymic epithelial cell function, and immune surveillance pathways.
Thymic Gene Expression and Immune Reconstitution
The thymus undergoes progressive involution with aging, resulting in reduced naïve T-cell output, contracted T-cell receptor diversity, and impaired adaptive immune responses. Thymogen has been studied for its capacity to tune thymic epithelial cell gene expression, possibly slowing or partially reversing the transcriptional changes linked with thymic involution. Published research from the Khavinson group shows that thymogen use in aged animal models was linked with improved thymic tissue architecture markers and enhanced T-lymphocyte maturation indices, supporting overall T-cell maturation.
T-Lymphocyte Differentiation and Function
Beyond thymic tissue effects, thymogen has been studied for direct tuning of T-cell gene expression profiles, including genes governing T-helper cell differentiation (Th1/Th2 balance), cytotoxic T-cell start, and control T-cell function. In immunosenescence models, thymogen use was linked with improved T-cell proliferative responses to mitogenic boost and normalization of CD4+/CD8+ T-cell ratios—insights often supported by metabolomics—that become dysregulated during immune aging or autoimmune challenges.
Anti-tumor Immune Surveillance
A major area of thymogen research examines its effects on anti-tumor immune surveillance. Age-related decline in T-cell function reduces the immune system’s capacity to detect and remove transformed cells, adding to increased cancer incidence with aging. Lab studies have examined thymogen’s effects on natural killer (NK) cell activity, cytotoxic T-lymphocyte (CTL) function, and tumor-specific immune response generation in aged animal models bearing experimental tumors.
Thymogen Research Applications: What Preclinical Studies Show
The following reflects published lab and clinical gerontology literature. PrymaLab Thymogen 20mg is supplied exclusively for research purposes.
Immunosenescence and Immune Aging
Thymogen, sometimes referred to as thymagen in older literature, is among the most extensively studied Khavinson bioregulators for immunosenescence — the progressive decline of immune function with aging. Published data shows effects on T-cell proliferative capacity, cytokine production profiles, thymic architecture preservation, and immune response quality in aged animal models. Khavinson’s research group has published data showing that bioregulator peptide treatment, including thymogen, was linked with improved immune function parameters and reduced age-related immune dysfunction markers in elderly cohorts in gerontological studies.
Cancer Research Support
Lab studies have examined thymogen’s role as an adjunct in cancer immunology research, focusing on its capacity to enhance anti-tumor immune responses through T-cell and NK cell start. Published animal studies documented improved tumor immune surveillance markers and reduced tumor growth rates in aged animals treated with thymic bioregulator peptides compared to untreated age-matched controls. These findings are of research interest in the context of immuno-oncology and age-related cancer susceptibility.
Infectious Disease Resistance
Age-related immune decline increases susceptibility to infectious diseases, and thymogen has been studied for its effects on immune defense capacity against bacterial and viral challenge models. Published data shows improved immune response kinetics and enhanced pathogen clearance in bioregulator-treated aged animals, consistent with restored T-cell functional competence.
Thymogen vs. Thymogen Alpha-1 (Thymosin Alpha-1): Key Differences
| Feature |
Thymogen (EW Dipeptide) |
Thymogen Alpha-1 (Thymalfasin) |
| Sequence |
Glu-Trp (2 amino acids) |
28 amino acids (Ac-SDAAVDTSSEITTKD…) |
| Cell-level Weight |
~333 g/mol |
~3,108 g/mol |
| Origin |
Khavinson bioregulator program (St. Petersburg) |
Derived from prothymosin alpha (Goldstein, 1977) |
| Mechanism |
Epigenetic: peptide-DNA interaction, gene expression tuning |
Direct: T-cell start, TLR signaling, DC maturation |
| Control Status |
Research compound (not approved for treatment use) |
Approved pharmaceutical in some countries (Zadaxin) |
| Research Focus |
Bioregulation, anti-aging, immunosenescence reversal |
Hepatitis B/C, immunodeficiency, cancer immunotherapy adjunct |
How to Store and Handle PrymaLab Thymogen 20mg
- Store freeze-dried at −20°C. Keep sealed, desiccated, and protected from light. Stable for 24+ months.
- Allow vial to reach room heat before opening to prevent condensation.
- Reconstitute with appropriate sterile solvent, such as bacteriostatic water. Add slowly along vial wall, noting that research-grade lyophilized peptides do not contain fillers like microcrystalline cellulose.
- Use mixed solution within 2–4 weeks. Refrigerate at 2–8°C.
- Avoid repeated freeze-thaw cycles. Aliquot into single-use portions.
- Retain the Certificate of Test for lot traceability.
Why Choose PrymaLab Thymogen 20mg?
PrymaLab supplies Thymogen 20mg as a high-purity research-grade bioregulator peptide, distinct from oral formats like 60 capsules, verified at ≥98% purity by reverse-phase HPLC and identity-confirmed by mass spectrometry. Each batch ships with a unique lot number and Certificate of Test. Independent third-party testing ensures unbiased quality check and full traceability.
Frequently Asked Questions About Thymogen
What is thymogen and how does it differ from thymogen alpha 1?
Thymogen is a synthetic dipeptide (Glu-Trp, EW) from the Khavinson bioregulator program that targets thymic and immune tissue through epigenetic gene expression tuning. Thymogen alpha 1 (Thymalfasin/Zadaxin) is a separate 28-amino acid peptide that acts through direct T-cell start and TLR signaling. They differ in size (2 vs 28 amino acids), mechanism, and control status. Thymogen is a research compound; Thymosin Alpha-1 is an approved pharmaceutical in some countries.
What are thymogen’s primary research applications?
Thymogen has been studied in immunosenescence (immune aging) models, anti-tumor immune surveillance research, infectious disease resistance, and thymic involution reversal. Research areas include T-lymphocyte differentiation and function, NK cell activity boost, and normalization of age-related immune dysregulation. All uses are in lab research settings.
Can thymogen be combined with other bioregulator peptides?
Published Khavinson research protocols have used thymogen alongside other bioregulator peptides targeting different organ systems. As an immune-specific bioregulator, thymogen is most often studied in mix with organ-specific bioregulators, such as Immune Peptide A2 (Lys-Glu), when researchers are studying full multi-system anti-aging protocols involving simultaneous immune support and target organ bioregulation.
How is thymogen stored?
Store freeze-dried thymogen at −20°C, desiccated and protected from light, for 24+ months shelf life. After mixing, refrigerate at 2–8°C and use within 2–4 weeks. Aliquot to avoid freeze-thaw cycles.
What testing does PrymaLab perform?
Every batch is verified at ≥98% purity by reverse-phase HPLC and identity-confirmed by mass spectrometry. Independent third-party testing with batch-specific Certificate of Test ensures unbiased quality check and full traceability.
Research Disclaimer
For Research Use Only. PrymaLab Thymogen 20mg is intended exclusively for qualified lab research use. This product is not intended for human consumption, use as a dietary supplement, treatment use, veterinary treatment, or any use outside controlled research environments. Thymogen (EW dipeptide) has not been approved by the FDA or any equivalent control authority for treatment use. All research uses described are from published lab and gerontological literature. Researchers are responsible for control compliance.
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