TB-500 (Thymosin Beta-4 Fragment)
Overview TB500 is a synthetic peptide fragment derived from thymosin beta4 (Tβ4), a naturally occurring 43aminoacid protein found in most tissues and cell types. This peptide fragment was developed to study the regenerative and tissuehealing properties attributed to the parent protein. Research surrounding TB500 has primarily focused on wound repair, angiogenesis, inflammation modulation, and cellular migration. Mechanism of Action (Research Context) Research suggests that TB500 exerts its biological activity through the regulation of actin polymerization—a critical process in cell motility and tissue remodeling. It enhances keratinocyte and endothelial cell migration, promotes angiogenesis, and aids in cytoskeletal reorganization. Studies have demonstrated its role in upregulating vascular endothelial growth factor (VEGF) expression and modulating inflammation through cytokine pathways. Potential Research Benefits Accelerated wound healing and tissue regeneration in preclinical studies Enhanced angiogenesis and blood vessel formation Reduced inflammatory response and fibrosis Improved recovery outcomes in muscle, tendon, and ligament injury models Investigated for potential cardiac repair properties following ischemic damage Chemical / Physical Information Sequence: AcSerAspLysProAspMetAlaGluIleGluLysPheAspLysSerLysLeuLysLysThrGluThrLysLeuLysGluValThrAsp Molecular Weight: Approximately 4964 Da Solubility: Soluble in sterile water or aqueous buffers Storage: Lyophilized powder should be stored at 20°C; reconstituted solutions should be aliquoted and frozen to avoid repeated freezethaw cycles Regulatory & Compliance Notes TB500 is not approved for therapeutic or medical use by any major regulatory authority. It is intended for research and laboratory investigation only. Procurement, handling, and storage should comply with institutional and legal requirements governing research chemicals. References 1. Huff T. et al., J Biol Chem. (2001). The role of thymosin beta4 in actin binding and cell motility. 2. Malinda K.M. et al., J Invest Dermatol. (1999). Thymosin beta4 accelerates wound healing. 3. Sosne G. et al., Exp Eye Res. (2002). Antiinflammatory properties of thymosin beta4. 4. Philp D. et al., Ann N Y Acad Sci. (2012). Angiogenesis and cardiac repair mechanisms of thymosin beta4. Disclaimer This content is intended for research and educational purposes only. TB500 is not approved for human or veterinary use. All studies and experimental work involving TB500 should be conducted in compliance with applicable regulations, ethical standards, and laboratory safety protocols. ———————————————– Selected References PMID: 18583549 — Thymosin β4–mediated tissue repair and regeneration PMID: 19189304 — Actinsequestering peptides in wound healing PMID: 21440617 — Thymosin β4 pathways in angiogenesis and cellular migration PMID: 24513106 — Peptidedriven repair mechanisms in musculoskeletal injury Frontiers in Pharmacology — Regenerative peptides and cytoskeletal modulation Journal of Peptide Science — Thymosinderived peptides in tissue recovery FAQ : What is TB500? TB500 is a synthetic version of a portion of thymosin beta4 (Tβ4), studied for its potential roles in cellular migration, tissue repair, and actin regulation in research environments. How does TB500 work in research? Research suggests TB500 interacts with actinbinding pathways, influencing cell movement, angiogenesis, and regeneration markers in experimental models. Is TB500 approved for human or medical use? No. TB500 discussed here is a researchonly compound and is not approved for therapeutic or consumer use. What are researchers studying TB500 for? Studies explore TB500 in contexts such as soft tissue repair, inflammation balance, angiogenesis, and cellular migration dynamics. How is TB500 different from full Thymosin Beta4? TB500 is a shorter synthetic fragment containing the active region associated with actin modulation, while Tβ4 is a naturally occurring, fulllength 43–amino acid peptide. How is TB500 evaluated in research settings? TB500 is assessed through in vitro assays and animal studies monitoring tissue regeneration, actin expression patterns, and inflammatory markers. Are there known side effects in TB500 studies? Published preclinical data show generally favorable tolerability, but longterm safety profiles are not established.
For research use only. Not for human consumption.