TB-500

In plain terms

TB-500 is a lab-made fragment of thymosin beta-4, a protein the body produces. Research has looked at how it affects cell migration and new blood-vessel formation in wound-healing models. Studies are in animals and cell cultures.

Research overview

TB-500 is a synthetic analog of Thymosin Beta-4, a naturally occurring 43-amino acid peptide involved in cytoskeletal organization. Laboratory research has studied its role in actin polymerization, cellular migration, and tissue regeneration models. Preclinical studies have examined its potential effects on wound healing and angiogenesis.

What has been studied

1. 1

   Cell migration

   TB-500 is a fragment of thymosin beta-4, a protein that binds actin. Laboratory research has focused on how it affects the ability of cells to move to a wound site, which is an early step in any repair process.

2. 2

   Blood vessel formation

   Animal studies have investigated whether it promotes the growth of new blood vessels in wound-healing models.

3. 3

   Scar tissue and fibrosis

   Rodent work has looked at whether it changes how much fibrous scar tissue forms as an injury heals, in heart and skin models.

4. 4

   Inflammation in injury models

   Some animal studies have measured inflammatory markers alongside the healing endpoints.

Research articles

• Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future DirectionsJournal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026
• Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applicationsExpert opinion on biological therapy · 2012
• beta-ThymosinsAnnals of the New York Academy of Sciences · 2007
• Recombinant human thymosin beta 4 improves ischemic cardiac dysfunction in mice and patients with acute ST-segment elevation myocardial infarction after reperfusionCardiovascular research · 2025