TB-500 2 mg Fragment (17-23)

THIS PRODUCT IS INTEDED AS A RESEARCH CHEMICAL ONLY.
This designation allows the use of research chemicals strictly in vitro for testing and laboratory experimentation only. All products information available on this website is for educational purposes only. Bodily introduction of any kind into humans or animals is strictly forbidden by law. This product should only be handled by licensed, qualified professional. This product is not a drug, food or cosmetic and may not be misbranded, misused or mislabled as a drug food or cosmetic.

TB-500 2mg Fragment (17–23)                  

TB-500 Fragment (17–23) is a synthetic N-acetylated heptapeptide corresponding to amino acid residues 17–23 of the naturally occurring protein Thymosin Beta-4 (Tβ4). Its amino acid sequence, Ac-LKKTETQ, represents the highly conserved actin-binding domain of the parent protein, making it an important research tool for studying cytoskeletal organization, cell migration, tissue regeneration, angiogenesis, and wound-healing mechanisms. A key distinction is that this 7-amino acid fragment is not the same molecule as the full-length 43-amino acid Thymosin Beta-4, and findings from studies on the parent protein should not automatically be attributed to the fragment.

The fragment was developed to isolate the core functional region responsible for many of Thymosin Beta-4's interactions with G-actin (globular actin). Researchers continue to investigate how this short peptide influences actin polymerization, cytoskeletal remodeling, and cellular motility during tissue repair. Because cell migration is fundamental to wound healing, angiogenesis, and tissue regeneration, TB-500 Fragment (17–23) has become an increasingly valuable experimental compound in regenerative biology and cellular physiology.

One of the primary areas of scientific investigation involves cell migration and wound-healing biology. Laboratory studies have examined how the fragment influences fibroblast migration, keratinocyte movement, endothelial cell differentiation, and extracellular matrix remodeling. Researchers continue to explore how these processes contribute to tissue repair and structural remodeling in experimental models. However, it is important to recognize that most published animal and clinical studies investigating wound healing were performed using full-length Thymosin Beta-4 rather than the 17–23 fragment, making direct comparison inappropriate.

Scientists have also investigated the fragment in research involving angiogenesis, connective tissue biology, tendon physiology, musculoskeletal regeneration, and inflammatory signaling. Experimental models continue to evaluate how the peptide affects cellular communication, actin-dependent signaling pathways, and tissue remodeling following mechanical or biological injury. Because actin dynamics influence numerous cellular functions, the fragment remains valuable for mechanistic studies examining cytoskeletal regulation.

Beyond regenerative biology, TB-500 Fragment (17–23) has attracted attention in studies involving cardiovascular biology, neurological regeneration, stem cell research, peptide engineering, and molecular cell biology. Ongoing investigations seek to clarify which biological activities arise specifically from the active actin-binding motif and which require the complete Thymosin Beta-4 protein. At present, TB-500 Fragment (17–23) remains an investigational research compound with no approved therapeutic indication for human use.

Areas of Scientific Research

TB-500 Fragment (17–23) continues to be investigated in laboratory studies involving:

• Actin-binding protein biology
• Cytoskeletal organization
• Cell migration and motility
• Tissue regeneration
• Wound-healing mechanisms
• Angiogenesis
• Fibroblast biology
• Endothelial cell function
• Connective tissue research
• Tendon and ligament biology
• Extracellular matrix remodeling
• Regenerative medicine
• Stem cell biology
• Molecular cell signaling

These research areas continue to improve scientific understanding of how the actin-binding motif of Thymosin Beta-4 contributes to cellular movement, structural remodeling, and regenerative processes. Most mechanistic evidence remains preclinical, and many published therapeutic findings involve the full-length parent protein rather than the fragment.

Product Quality

TB-500 Fragment (17–23) 2mg is supplied as a lyophilized (freeze-dried) powder, providing excellent stability for laboratory storage and scientific investigation. Lyophilization minimizes moisture-related degradation while preserving peptide integrity until reconstitution according to established laboratory protocols.

High-quality research peptides should undergo analytical verification using recognized laboratory techniques such as High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) to confirm peptide identity, purity, and batch consistency. These quality-control procedures help ensure reliable, reproducible, and consistent scientific investigations.

This product is intended exclusively for laboratory and scientific research. It is not intended for human consumption, therapeutic use, or veterinary applications.