TB-500 (Thymosin Beta-4) Research: Cellular Migration and Wound Healing Studies Introduction to Thymosin Beta-4 Thymosin Beta-4 (TB-500) represents the synthetic analog of Thymosin Beta-4, a naturally occurring peptide comprising 43 amino acids and found in virtually all mammalian cells at concentrations significantly higher than other beta-thymosins. This highly conserved protein plays fundamental roles in cellular organization, tissue repair, and developmental…