Product Usage: This PRODUCT IS INTENDED AS A RESEARCH CHEMICAL ONLY. This designation is allowed to use of research chemicals strictly for in vitro testing and laboratory experimentation only. All product information available on this website for educational purpose only. Bodily introduction of any kind into humans and animals is strictly forbidden by law. This product should only be handled by licenced qualified professionals. This product is not a drug, food, or cosmetic and may not be misbranded, misused as a drug, food and cosmetic.

TB-500 5MG

TB-500 5MG

$50.99
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BACTERIOSTATIC WATER

For this product you will need: BACTERIOSTATIC WATER For reconstitution.

The TB-500 5MG for sale here are intended for laboratory and research use only, unless otherwise explicitly stated. They are not intended for human ingestion or for use in products that may be ingested.

What Is TB-500 5MG?

TB-500 has synthetic origins and it is an analogue of the naturally conserved peptide Thymosin Beta-4 (Tβ4) present in all eukaryotic cells. Thymosin Beta-4 acts as a regulator of various cellular functions such as cytoskeletal organization, cell motility, angiogenesis, and extracellular matrix modification. It is composed of 43 amino acid residues and can be found in number of tissues and bodily fluids such as blood, saliva or wound exudate. TB-500 is a synthetic derivative of Tβ4, a molecular clone of the native Tβ4 in structure that has been developed for experimental use in order to examine actin dynamics and also to ascertain the mechanisms of cellular migration and cell signaling pathways [1].

Thymosin Beta-4 was initially characterized and isolated from bovine thymus tissue in the 1980s. The synthetic analogue TB-500 was subsequently developed in 2010 for laboratory research applications. TB-500 is supplied exclusively for educational and experimental purposes and is intended solely for controlled scientific investigation. On our website, TB-500 for sale is restricted to qualified researchers and is not intended for human or animal use.

Structure Of TB-500 5MG

structure

From Pubchem

Synonyms: QHK6Z47GTG, TB-500
Molecular Formula: C38H68N10O14
Molecular Weight: 889.0 g/mol
Sequence: LKKTETQ
CAD Number: 885340-08-9
PubChem CID: 62707662

TB-500 5MG Uses In Research

TB-500 and Angiogenic Signaling Pathways

TB-500, a synthetic derivative of Thymosin Beta-4 (Tβ4), is used to study the molecular pathways associated with angiogenesis. In such an experimental scenario Tβ4 is able to modify the endothelial cell function, changing fibroblast transformation and the cytoskeletal organization related to angiogenesis [2].

Experimental models have elucidated the involvement of AKT and PI3Kα/Rho signaling pathways in mediating actin-dependent cellular migration and structural reorganization. Inhibition of these pathways attenuates endothelial network formation, highlighting the role of Tβ4 as a tool for dissecting intracellular signaling cascades relevant to vessel morphogenesis [3].

TB-500 and Cytoskeletal Dynamics in Muscle Research

TB-500 is used in research laboratory experiments to investigate actin cellular processes within muscle cells. Studies target modification of myofibrillar structure, cytoskeletal reorganization and actin filament dynamics. Tβ4 enhances cell motility and differentiation responses in model tissue systems, enabling experimental tools with which to probe of the mechanisms underlying structural organization in muscle [4,5].

TB-500 as a Probe for Cytoskeletal and Extracellular Matrix Remodeling

Tβ4 is applied in research to analyze wound microenvironment remodeling and extracellular matrix dynamics. Experimental systems demonstrate that TB-500 regulates actin polymerization, stem cell migration, and differentiation, as well as matrix metalloproteinase expression, thereby influencing structural organization within model tissue constructs [6,7,9]. These properties make TB-500 a valuable reagent for mechanistic investigation of cytoskeletal regulation and morphogenetic pathways.

TB-500 and Ocular Surface Modeling

Thymosin Beta-4 is used experimentally to study epithelial cell migration, extracellular matrix organization, and tissue repair processes in ocular surface models. Laboratory research highlights its effect on corneal epithelial cell motility, junctional protein distribution, and modulation of cytoskeletal networks under defined conditions [10,11].

Current Status of TB-500

TB-500 functions as a research-grade synthetic analogue of Thymosin Beta-4, employed exclusively for mechanistic studies of actin dynamics, cellular migration, angiogenic signaling, and tissue morphogenesis. It is not intended for clinical or human use. TB-500 for sale is available strictly for laboratory and educational research purposes and should be purchased only by qualified investigators.

Referenced Citations

  1. Ho, E.N.M., et al., Doping control analysis of TB-500, a synthetic analog of the active region of thymosin β4, in equine urine and plasma by liquid chromatography–mass spectrometry. Journal of Chromatography A, 2012. 1265: p. 57-69.
  2. Smart, N., et al., Thymosin β4 induces mobilization of epicardial progenitor cells and promotes neovascularization. Nature, 2007. 445(7124): p. 177-82.
  3. Trenkwalder, T., et al., Mechanistic evaluation of thymosin-β4-mediated neovascularization: role of the PI3K/AKT signaling pathway. Expert Opin Biol Ther, 2015. 15 Suppl 1: p. S175-85.
  4. Spurney, C.F., et al., Analysis of skeletal and cardiac muscle function following chronic administration of thymosin β4 in preclinical models. PLoS One, 2010. 5(1): p. e8976.
  5. Bjørklund, G., M. Dadar, J. Aaseth, and S. Chirumbolo, Thymosin β4 as a multi-faceted modulator of tissue repair mechanisms. Curr Med Chem, 2020. 27(37): p. 6294-6305.
  6. Ehrlich, H.P. and S.W. Hazard, 3rd, Thymosin β4 facilitates connective tissue organization and modulates myofibroblast formation during tissue repair. Ann N Y Acad Sci, 2010. 1194: p. 118-24.
  7. Xiong, Y., et al., Neurorestorative and cellular signaling effects of thymosin β4 in experimental models of neural injury. Ann N Y Acad Sci, 2012. 1270: p. 51-8.
  8. Guarnera, G., A. DeRosa, and R. Camerini, Examination of thymosin β4 in experimental wound healing and extracellular matrix remodeling. Ann N Y Acad Sci, 2010. 1194: p. 207-12.
  9. Goldstein, A.L., E. Hannappel, G. Sosne, and H.K. Kleinman, Thymosin β4: structural properties, actin-regulatory function, and applications in experimental tissue regeneration. Expert Opin Biol Ther, 2012. 12(1): p. 37-51.
  10. Sosne, G., et al., Investigations of thymosin β4 in ocular surface models: effects on corneal cell function and tissue repair. Investigative Ophthalmology & Visual Science, 2013. 54(15): p. 6033-6033.
  11. Sosne, G. and G.W. Ousler, Evaluation of thymosin β4 ophthalmic solution in controlled ex vivo and in vitro ocular models. Clin Ophthalmol, 2015. 9: p. 877-84.

Certificate of Analysis (COA)

COA

High Performance Liquid Chromatography (HPLC)

COA

Mass Spectrometry (MS)

COA

Molecular FormulaMolecular WeightCAS NumberSKU
C212H350N56O78S4963.5 g/mol77591-33-4ES-TB-5

TB-500 is a synthetic peptide fragment corresponding to the active region of thymosin beta-4, a naturally occurring actin-sequestering protein. Its compact structural format is designed for stability in cell culture media and tolerance of standard freeze-thaw cycles, making it a practical tool for cell-based assay protocols requiring consistent compound activity across prolonged experimental windows.

Cell-based research using TB-500 examines its interaction with G-actin monomers via the conserved actin-binding domain, with downstream effects on cytoskeletal reorganisation and integrin-mediated cell adhesion in fibroblast and endothelial cell models. Published in vitro studies further characterise its modulation of matrix metalloproteinase expression patterns, particularly MMP-2 and MMP-9, in cell migration and wound-healing assay formats.

Element CRP supplies this product at 5mg per vial. USA-manufactured via solid-phase peptide synthesis and verified at 99%+ purity by HPLC and Mass Spectrometry. Reconstitution with bacteriostatic water required. Store lyophilised at -20°C; stable for 24 months.

WARNING: For research use only. Not for human or animal consumption. Not intended to diagnose, treat, cure, or prevent any disease. For use by qualified research professionals only.

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