Pre-clinical mechanism
Thymosin β-4 binds G-actin and modulates cytoskeletal dynamics, with downstream effects on cell migration, angiogenesis, and inflammatory cytokine expression in pre-clinical wound models. The N-terminal LKKTETQ fragment (TB-500) retains a portion of these activities in vitro.
Key pre-clinical findings
- Cardiac infarct rodent model: reduced scar volume and improved ejection fraction in mouse MI studies (Bock-Marquette et al., 2004).
- Dermal wound healing: faster re-epithelialisation in full-thickness rodent wounds (Malinda et al., 1999).
- Corneal epithelial defect models: accelerated closure and reduced inflammatory infiltrate (Sosne et al., 2002).
Primary literature
Thymosin beta-4 activates integrin-linked kinase and promotes cardiac cell migration, survival and cardiac repair
Bock-Marquette I, Saxena A, White MD, et al. · Nature · 2004
Thymosin beta 4 accelerates wound healing
Malinda KM, Sidhu GS, Mani H, et al. · Journal of Investigative Dermatology · 1999
Thymosin beta 4 promotes corneal wound healing and decreases inflammation
Sosne G, Szliter EA, Barrett R, et al. · Experimental Eye Research · 2002
