TB-500

TB500 is a synthetic peptide fragment representing the active core of the naturally occurring protein Thymosin Beta-4 (Tβ4). Tβ4 is a ubiquitous, highly conserved protein involved in cell migration, actin regulation, and tissue repair processes. The mechanism of action of TB500 is multifaceted, primarily focusing on its ability to promote healing and reduce inflammation.

• Actin Polymerization Regulation: TB500 binds to actin, preventing its polymerization into filaments. This promotes the availability of G-actin (globular actin), which is crucial for cell motility, wound healing, and regeneration.
• Cell Migration: By regulating actin dynamics, TB500 enhances the migration of various cell types, including endothelial cells, keratinocytes, and fibroblasts, which are vital for angiogenesis (new blood vessel formation), re-epithelialization, and tissue remodeling during wound repair.
• Anti-inflammatory Effects: Research indicates that TB500 can modulate inflammatory responses, potentially by reducing the production of pro-inflammatory cytokines and inhibiting neutrophil infiltration at sites of injury, thereby minimizing tissue damage and promoting a more conducive healing environment.
• Angiogenesis: It directly promotes the formation of new blood vessels, which is essential for delivering oxygen and nutrients to damaged tissues, facilitating repair and regeneration.
• Cell Protection: Studies suggest it can protect cells from apoptosis (programmed cell death) and oxidative stress, thereby improving cell survival and overall tissue integrity.

These combined biological activities position TB500 as a compelling compound for research into tissue regeneration, injury recovery, and conditions involving inflammation and cellular repair.

TB500 (Thymosin Beta-4) has been and continues to be a significant subject of **preclinical and clinical research** due to its widespread regenerative and cytoprotective properties. While the full-length Thymosin Beta-4 has been evaluated in various therapeutic contexts (e.g., for wound healing), TB500, as a synthetic fragment, is often used in research to explore the efficacy of its active domain.

• Wound Healing and Tissue Repair: Extensive research focuses on its potential to accelerate healing in various tissues, including skin wounds, corneal injuries, and myocardial infarction (heart muscle damage), by promoting cell migration and angiogenesis.
• Inflammatory Conditions: Studies investigate its role in modulating inflammatory responses in conditions affecting joints, muscles, and other tissues, aiming to reduce pain and tissue damage.
• Neurological Recovery: Emerging research explores its neuroprotective properties and potential to aid recovery in models of neurological injury or disease.
• Musculoskeletal Injury: Due to its role in tissue regeneration, it is investigated for accelerating recovery from muscle, tendon, and ligament injuries.
• Mechanism Elucidation: Ongoing research aims to fully characterize its molecular targets and pathways involved in actin regulation, inflammation, and cellular survival.

It's important to differentiate between TB500 as a research chemical and pharmaceutical applications of Thymosin Beta-4, which may undergo rigorous drug approval processes. TB500, in its research chemical form, is strictly for scientific investigation.

TB500 is strictly intended for **laboratory research purposes only**. It must be handled by qualified research personnel in a controlled laboratory environment, adhering to all applicable safety protocols and guidelines for investigational research chemicals. This product is **not approved for human consumption, therapeutic use, or veterinary applications**. Its use is limited to scientific investigation and analysis. Proper laboratory safety equipment, including personal protective equipment (PPE), and procedures must be employed during its handling, storage, and experimental application. Researchers should consult relevant safety data sheets (SDS) if available, and institutional guidelines before use.

For more detailed information on TB500 (Thymosin Beta-4) and its research applications, please refer to the following scientific literature:

• Thymosin beta4 and its clinical applications: Vitam Horm, PMID: 19875416 (Comprehensive review on Tβ4)
• Thymosin β4: a novel regulator of angiogenesis and wound healing: Expert Opin Biol Ther, PMID: 20815152 (Focus on angiogenesis and wound healing)
• Thymosin β4 in cardiac repair: Expert Opin Biol Ther, PMID: 21262334 (Specific research on cardiac repair)
• Thymosin Beta 4, a Key Regulator of Cell Migration and Angiogenesis in Wound Healing: J Invest Dermatol, PMID: 24036737 (Detailed look at cell migration and angiogenesis)
• PubChem Compound Summary: Acetyl-LKKTETQ-OH (TB500 active fragment, CID 9940251)

*(Note: References specifically highlight research on Thymosin Beta-4 and its active fragments like TB500.)*

For optimal stability and preservation of TB500, observe the following recommendations:

• Storage: Store lyophilized powder at -20°C to -80°C (long-term) or 2°C to 8°C (short-term, for up to 2-4 weeks), away from light and moisture.
• Reconstitution: Reconstitute with sterile, deionized water or a suitable solvent as per specific experimental protocols. Avoid repeated freeze-thaw cycles.
• Handling: Handle under aseptic conditions to prevent contamination. Use appropriate personal protective equipment (PPE), including gloves and eye protection.
• Stability: Once reconstituted, solutions should be stored at 2°C to 8°C and used within a short period, typically 24-72 hours, depending on the solvent and concentration. Long-term storage of reconstituted solutions is not recommended.
• Disposal: Dispose of TB500 and any waste materials in accordance with local and institutional hazardous waste regulations.

Strict adherence to these guidelines will help maintain the integrity and purity of the compound for research applications.

This product, TB500, is sold exclusively for **research and development purposes**. It is classified as a research chemical and is **not a drug, food, or cosmetic**. It has not been evaluated or approved by the FDA or any other regulatory authority for safety, efficacy, or any other use in humans or animals. By purchasing this product, the user acknowledges and agrees to comply with all applicable local, national, and international laws and regulations regarding the handling, storage, and use of research compounds. Any use of this product for purposes other than legitimate scientific research is strictly prohibited and may lead to severe legal and health consequences.