Thymosin Beta-4 Fragment (TB4-Frag)
Overview
Thymosin Beta-4 Fragment refers to bioactive segments derived from the 43-amino acid thymosin beta-4 protein, most commonly a 7-amino acid N-terminal sequence (Ac-SDKP). These fragments retain specific biological activities of the parent peptide, including modulation of actin polymerization, angiogenesis, and inflammation.
Mechanism of Action
Shorter fragments may offer improved stability and targeted activity compared to full-length thymosin beta-4..
Research Summary & Key Findings
The tetrapeptide Ac-SDKP has been studied in rodent models of fibrosis and hypertension, demonstrating anti-inflammatory and antifibrotic effects. Preclinical wound healing models have shown enhanced angiogenesis and epithelialization with various TB4 fragments. Clinical evidence in humans remains limited to small exploratory studies without large-scale controlled trials.
Clinical Status
Thymosin Beta-4 Fragment (TB4-Frag) is in the research phase with limited clinical data in humans. Current evidence is primarily derived from preclinical (animal or in vitro) studies.
Administration Routes
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