FOXO4-DRI

experimental
FOXO4-D-Retro-InversoSenolytic peptideProxofim

A senolytic peptide that selectively induces apoptosis in senescent cells by disrupting the FOXO4-p53 interaction.

Category
anti aging
Dosage
5-10 mg/kg in animal studies (no established human dose)
Half-Life
Extended due to D-amino acid structure (estimated days)
Administration
Intravenous infusion (animal studies)

Overview

FOXO4-DRI is a D-retro-inverso peptide designed to interfere with the FOXO4-p53 protein interaction that keeps senescent ("zombie") cells alive. Developed by Dr. Peter de Keizer at Erasmus University Medical Center in the Netherlands, it was published in Cell in 2017.

Senescent cells accumulate with age and secrete inflammatory factors (SASP) that damage surrounding tissue and accelerate aging. FOXO4-DRI works by competitively binding to p53, preventing FOXO4 from sequestering it in the nucleus, thereby triggering selective apoptosis of senescent cells while leaving healthy cells unaffected. In aged mice, it restored fitness, fur density, and kidney function.

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Benefits

  • Selectively eliminates senescent cells
  • Reduces inflammatory SASP factors
  • Restored physical fitness in aged mice
  • Improved kidney function in animal models
  • Targets aging at a fundamental cellular level
  • Spares healthy non-senescent cells

Side Effects

  • No human clinical data available
  • Theoretical risk of excessive cell death
  • Potential immune system effects
  • Very expensive to synthesize
  • Unknown long-term consequences of senescent cell clearance
  • Experimental — no established safety profile

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Quick Comparison Guide

Quality
COA + 3rd party testing required
Purity
≥95% minimum standard
Storage
Lyophilized powder preferred
Shipping
Cold chain when needed

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⚠ Research Disclaimer: This information is for educational purposes only and is not medical advice. Consult a qualified healthcare professional before using FOXO4-DRI or any peptide. See our full medical disclaimer.

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