PEP-0074Research chemical

TB-500

Also known as

TB-500 is catalogued in the Peptides Pub research index, with coverage focused on Tissue recovery.


Evidence

Preliminary· 4.0

Animal or in-vitro only

Risk band

Moderate

Known AEs, monitoring advised

Research goals

Summary

TB-500 is the synthetic fragment associated with thymosin beta-4, an endogenous peptide that functions primarily as the main intracellular G-actin-sequestering molecule in most vertebrate cells [3,4]. Through its effects on the actin cytoskeleton and cell motility, thymosin beta-4 has been implicated in tissue repair and regeneration, including reduced myofibroblast numbers, decreased scarring and fibrosis, and proposed applications in skin, eye, heart, and brain [1]. The peptide is largely unstructured, which is thought to underlie its many attributed functions via recognition of numerous molecular ligands [2,4]. The provided literature is foundational cell-biology and review material describing endogenous function and mechanism rather than controlled human trials of administered TB-500, so clinical therapeutic benefit is not established by these sources.

Sources

  1. 1. Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applications Expert opinion on biological therapy, 2012.
  2. 2. Thymosin beta 4 interactions Vitamins and hormones, 2003.
  3. 3. beta-Thymosins Annals of the New York Academy of Sciences, 2007.
  4. 4. The beta-thymosin enigma Annals of the New York Academy of Sciences, 2007.

For educational purposes only.