Understand the source comparison
FOXO4-DRI: Full Keyword Comparison
Amino Acid Composition 505 L-amino acids (natural) 29 D-amino acids (synthetic, reverse sequence) D-retro-inverso structure extends half-life 10–20× compared to L-amino acid peptides Biological Function Transcription factor regulating stress response, metaboli
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Amino Acid Composition
- 505 L-amino acids (natural)
- 29 D-amino acids (synthetic, reverse sequence)
- D-retro-inverso structure extends half-life 10–20× compared to L-amino acid peptides
- Biological Function
- Transcription factor regulating stress response, metabolism, longevity pathways
- Competitive inhibitor of FOXO4-p53 interaction; senolytic agent
- FOXO4-DRI has no transcriptional activity. It's purely a protein-protein interaction disruptor
- p53 Interaction
- Binds p53 in senescent cells; sequesters p53 in cytoplasm to prevent apoptosis
- Displaces endogenous FOXO4 from p53; allows nuclear p53 translocation and apoptosis induction
- FOXO4-DRI's binding affinity is deliberately tuned to exceed endogenous FOXO4 without off-target effects
- Half-Life
- Minutes (rapidly degraded by proteases)
- 4–8 hours (resistant to protease degradation)
- Extended half-life allows sustained disruption during treatment windows
- Cell Selectivity
- Expressed broadly in response to oxidative stress
- Selectively toxic to senescent cells; minimal effect on proliferating or quiescent cells
- Senescent cells uniquely depend on FOXO4-p53 interaction for survival. Healthy cells do not
- Research Applications
- Studied in metabolic disease, cancer suppression, ageing biology
- Senolytic therapy research; tissue rejuvenation models; age-related disease interventions
- FOXO4-DRI is experimental. All human data is limited to case reports and small-scale trials