Description
THE SCIENCE, SIMPLIFIED
How TB-500 Works
Multi-Pathway Regeneration Mechanism
TB-500 works through actin binding and cell migration pathways. By sequestering G-actin monomers, it enables coordinated cytoskeletal remodeling, promoting efficient cell migration to injury sites – a critical step in wound healing and tissue regeneration.
Primary
Actin Binding
G-Actin Sequestration
- Regulates actin polymerization
- Enables cytoskeletal remodeling
- Facilitates cell motility and migration
Primary
Integrin-Linked Kinase
ILK/PINCH/Parvin Complex
- Promotes cell survival signaling
- Activates Akt pathway
- Supports cardiac cell migration
Modulatory
NF-kB Modulation
Anti-Inflammatory Pathways
- Reduces inflammatory cytokines
- Ameliorates inflammatory damage
- Activates pro-resolving pathways
KEY MECHANISM
Actin-Based Cell Migration
TB-500 binds to G-actin monomers, preventing premature polymerization and allowing coordinated cytoskeletal remodeling. This promotes efficient cell migration to injury sites.
| NF-kB Signaling | Modulated |
| Inflammatory Cytokines | Reduced |
| PI3K/Akt/eNOS | Activated |
| Notch Pathway | Regulated |
CLINICAL EVIDENCE
What Research Has Shown
Summary of preclinical and Phase 1 clinical findings
Phase 1 Human Trial + Preclinical
Key Wound Healing Findings
Key Outcomes
Research Success Metrics
Dose-Response Study Results (Stroke Model)
RESEARCH AREAS
Research Applications
Areas studied in preclinical and clinical research
61% faster wound re-epithelialization
Wound Healing
ILK activation, cardiomyocyte survival
Cardiac Repair
Improved functional outcomes in stroke/TBI
Neuro Recovery
Cardiac Research
Cardiac Cell Survival & Repair
Neuroprotection
Stroke & Brain Injury Recovery
| Oligodendrocyte progenitors | Increased in SVZ |
| Mature oligodendrocytes | Increased in corpus callosum |
| Myelination | Enhanced in striatum |
| Functional recovery | Improved at 14-56 days |
SYNERGY
Complementary Peptide Mechanisms
TB-500 promotes cell motility via G-actin sequestration while BPC-157 promotes blood vessel formation – potentially complementary mechanisms for tissue repair. Often studied together as the “Wolverine” blend.
SAFETY DATA
Safety Profile from Research
What preclinical and Phase 1 clinical studies report
Thymosin Beta-4 has demonstrated a favorable safety profile in Phase 1 clinical trials, with no serious adverse events or dose-limiting toxicities observed at doses up to 1260mg IV daily for 14 days.
Headache
MILD
Upper Respiratory
MILD
Injection Site
MILD
THEORETICAL CONCERNS
Potential risks requiring further investigation
Because TB4 promotes cell migration and angiogenesis, there are theoretical concerns about potential effects on tumor growth and metastasis.
- Pro-angiogenic and pro-migratory effects could theoretically affect tumors
- Long-term effects in humans unknown
- Not approved by FDA or any regulatory agency
Phase 1 Safety Summary
| Serious adverse events | 0 (none) |
| Dose-limiting toxicities | 0 (none) |
| Study discontinuation | 0 (none) |
| Treatment-emergent AEs | Mild/moderate only |
COMPOUND DETAILS
Compound Information
What Is TB-500?
TB-500 is a synthetic version of Thymosin Beta-4, a naturally occurring 43-amino acid peptide first identified in the thymus gland in the 1960s. It is present in virtually all cells and tissues, with high concentrations in blood platelets, wound fluid, and developing tissues. The peptide plays a fundamental role in tissue repair, cell migration, and wound healing.
| Type | Endogenous peptide/synthetic analog |
| CAS Number | 77591-33-4 |
| Molecular Weight | 4,963 Da |
| Amino Acids | 43 |
| Active Region | Ac-SDKP (N-terminal) |
| Key Sequence | 17LKKTET22 (actin binding) |
Stability Information
Lyophilized powder
-20C – stable long term
Reconstituted
2-8C – use within 14-30 days
RESEARCH STATUS
Where It Stands
| Origin | Thymus gland, platelets |
| Discovery | 1960s (thymosin fraction) |
| Clinical trials | Phase 2 (dry eye), Phase 1 (cardiac) |
| Regulatory status | Investigational drug |
Frequently Asked Questions
Common questions about TB-500 research
Sources & References
Peer-reviewed research
IMPORTANT RESEARCH NOTICE
Not for human consumption. This product is sold exclusively for research and educational purposes. It is not intended to diagnose, treat, cure, or prevent any disease.
All clinical trial data and research findings presented on this page are sourced from peer-reviewed journals and official publications. They are provided for educational reference only.
By purchasing this product, you confirm that you are a qualified researcher and will use it in accordance with all applicable laws and regulations.
Verified Researcher –
Excellent purity and fast shipping. TB-500 exceeded my research expectations.