TB-500

What Is TB-500?

TB-500 is a synthetic peptide based on the active region of Thymosin Beta-4 (Tβ4), a naturally occurring 43-amino acid protein found in nearly all human and animal cells. The compound corresponds to the short LKKTETQ sequence responsible for much of Tβ4's biological activity, particularly its interaction with the cytoskeletal protein G-actin. As a research compound, TB-500 has gained substantial scientific interest for its regenerative, cytoprotective, and pro-angiogenic properties, extensively documented in preclinical animal and cellular models.

Its underlying biological role relates to actin sequestration, cell migration, and modulation of inflammatory and reparative signaling. Studies indicate that TB-500 promotes endothelial cell migration, new blood vessel formation, and accelerated tissue remodeling — processes central to the repair of muscle, skin, cardiac, corneal, and neural tissues (Goldstein et al., 2005).

Mechanism of Action

TB-500 is studied for its ability to bind and sequester G-actin, regulating actin polymerization and enabling cell motility, a process essential to tissue repair (Goldstein et al., 2005). It is also reported to upregulate VEGF expression and promote endothelial cell migration, supporting angiogenesis and microvascular network formation (Philp et al., 2004). Additional research describes activation of integrin-linked kinase (ILK) and Akt signaling, contributing to cell survival, migration, and structured tissue regeneration (Bock-Marquette et al., 2004).

Key Areas of Research

Muscle, Tendon & Soft Tissue Repair

Preclinical models show enhanced cell migration, faster recovery of injured fibers, and improved structural remodeling in soft tissues with limited vascular supply (Crockford et al., 2010).

Skin & Wound Healing

TB-500 has demonstrated accelerated re-epithelialization, increased collagen deposition, and improved granulation tissue quality in wound and burn studies, alongside effects on hair follicle development (Malinda et al., 1999; Philp et al., 2004).

Cardiac & Vascular Research

Studies highlight mobilization of epicardial progenitor cells, enhanced neovascularization, and improved cardiomyocyte survival following ischemic injury in animal models (Bock-Marquette et al., 2004; Smart et al., 2007).

Corneal & Ocular Repair

Research reports faster corneal re-epithelialization and reduced inflammatory mediator activity in models of ocular injury (Sosne et al., 2002).

Neuroprotection & Functional Recovery

Animal studies of stroke and traumatic brain injury indicate improved neurological outcomes, oligodendrogenesis, and axonal remodeling following TB-500 administration (Morris et al., 2010).

Anti-Inflammatory Activity

Studies report suppression of NF-κB and MAPK signaling, with reductions in pro-inflammatory cytokines, suggesting support for balanced inflammatory responses during tissue repair (Xing et al., 2016).

Research Use Only

TB-500 supplied by Peptidos.eu is intended exclusively for laboratory and scientific research. It is not approved for human or animal consumption and must not be used as a medicine or diagnostic tool.

Disclaimer

The products offered by peptidos.eu are intended exclusively for research and laboratory use and are sold only to qualified professionals, institutions, or authorized entities. These products are not intended for human or veterinary consumption, nor for any application involving living organisms, including — but not limited to — diagnostic, therapeutic, or recreational purposes.

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• They are a qualified professional or entity, possessing the necessary competence, training, and facilities for the safe handling of chemical reagents;

• They will use the product in full compliance with all applicable local, national, and European Union laws and regulations;

• They will adopt appropriate safety measures during all stages of handling, storage, and disposal.

Prohibited Uses

• The product must not be used as an Active Pharmaceutical Ingredient (API) in the manufacturing or preparation of medicines intended for humans or animals;

• Any direct administration or use on humans or animals is strictly prohibited;

• Peptidos.eu does not endorse or permit the use of its products for the production, testing, or development of illegal substances.

Liability

• The purchaser assumes full responsibility for the handling, storage, and use of the product in safe conditions and in compliance with the law.

• Peptidos.eu shall not be held liable for any direct or indirect damages arising from improper use, incorrect storage, or unauthorized use of the product.

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• In case of doubts regarding the safe and lawful use of the product, it is recommended to consult a qualified professional experienced in laboratory research.

Regulatory Compliance

Peptidos.eu does not claim or imply that its products are approved by the European Medicines Agency (EMA), the Food and Drug Administration (FDA), or any other regulatory authority. All information provided is for informational and scientific purposes only. These products are not intended to diagnose, treat, cure, or prevent any disease.