FOXO4-DRI (FOXO4-D-Retro-Inverso)
Senolytic Peptide · p53-FOXO4 Disruptor
Overview
FOXO4-DRI is a senolytic peptide selectively eliminate senescent 'zombie' cells that accumulate with age and contribute to tissue dysfunction. It works by disrupting the FOXO4-p53 interaction that keeps senescent cells alive. The 'DRI' modification (D-retro-inverso) uses reversed D-amino acids to increase potency and…
FOXO4-DRI competes with FOXO4 for binding to p53, disrupting their protective interaction in senescent cells. This causes p53 to be excluded from the nucleus and triggers cell-intrinsic apoptosis (programmed cell death). Critically, this mechanism is highly selective: the FOXO4-p53 interaction is a specific…
Selectively induces apoptosis in senescent cells while sparing healthy tissue.
Restores tissue homeostasis and function in naturally aged animal models.
Improved fitness, mobility, and physical appearance in aged mice.
Mechanism
FOXO4-DRI is a senolytic peptide selectively eliminate senescent 'zombie' cells that accumulate with age and contribute to tissue dysfunction. It works by disrupting the FOXO4-p53 interaction that keeps senescent cells alive. The 'DRI' modification (D-retro-inverso) uses reversed D-amino acids to increase potency and…
FOXO4-DRI competes with FOXO4 for binding to p53, disrupting their protective interaction in senescent cells. This causes p53 to be excluded from the nucleus and triggers cell-intrinsic apoptosis (programmed cell death). Critically, this mechanism is highly selective: the FOXO4-p53 interaction is a specific…
Selectively induces apoptosis in senescent cells while sparing healthy tissue.
Research areas
- FOXO4-DRI is a senolytic peptide selectively eliminate senescent 'zombie' cells that accumulate with age and contribute to tissue dysfunction. It works by disrupting the FOXO4-p53 interaction that keeps senescent cells alive. The 'DRI' modification (D-retro-inverso) uses reversed D-amino acids to increase potency and…
- FOXO4-DRI competes with FOXO4 for binding to p53, disrupting their protective interaction in senescent cells. This causes p53 to be excluded from the nucleus and triggers cell-intrinsic apoptosis (programmed cell death). Critically, this mechanism is highly selective: the FOXO4-p53 interaction is a specific…
- Selectively induces apoptosis in senescent cells while sparing healthy tissue.
- Restores tissue homeostasis and function in naturally aged animal models.
- Improved fitness, mobility, and physical appearance in aged mice.
Research notes
- Limited human data available
- Generally well-tolerated in animal studies
- Unexpected adverse effects
- Not yet approved for human use
- Pregnancy or breastfeeding
Questions
What makes FOXO4-DRI different from other anti-aging approaches?
FOXO4-DRI is the first senolytic peptide that selectively eliminates 'zombie' senescent cells accumulating with age, whereas most anti-aging approaches target symptoms or regeneration. It disrupts FOXO4-p53 interaction in senescent cells to trigger apoptosis, effectively removing damaged cells rather than just…
Is FOXO4-DRI safe if I have a history of cancer?
FOXO4-DRI is theoretically contraindicated in active cancer due to p53 pathway modulation, though the mechanism (disrupting FOXO4-p53 interaction) differs from therapies affecting healthy p53. Cancer history requires careful medical consideration. Most sources recommend consulting an oncologist before using,…
How much FOXO4-DRI should a human dose based on mouse studies?
The original 2017 mouse study used 5 mg/kg IP, 3 times on alternate days. For a 60kg human, this translates to approximately 25mg per dose, administered as 3 doses every other day (75-100mg total per cycle). However, human pharmacokinetics differ significantly from mice, making these translations speculative.
What visible changes occurred in aged mice treated with FOXO4-DRI?
Aged mice receiving FOXO4-DRI showed restored fur density, improved physical fitness, organ function (particularly kidneys), and improved testosterone levels. These dramatic improvements suggest senescent cell clearance genuinely restored tissue homeostasis, though results in humans remain theoretical.