FOXO4-DRI mastery course
Unit 2 of 11

The FOXO4-p53 axis

Senescent cells are packed with damage that should trigger their own death, yet they survive. The reason is a specific…

The molecular handcuff that keeps zombie cells alive

Senescent cells are packed with damage that should trigger their own death, yet they survive. The reason is a specific protein-protein interaction: elevated FOXO4 physically grabs p53 and holds it in the nucleus, blocking the death signal from ever reaching the mitochondria.

This unit unpacks that handcuff, the axis FOXO4-DRI was designed to break, and the experiments that proved it is real rather than merely plausible.

Key terms

Why senescent cells will not die


How FOXO4 handcuffs p53


Two jobs of p53, one of them blocked


From broken grip to dead cell


How the axis was proven