Suppressing APOE4-induced mortality and cellular damage by targeting VHL

Area of Science:

• Aging and Gerontology
• Molecular Biology
• Neuroscience

Background:

• Mortality rate escalates with age and can be exacerbated by intrinsic or extrinsic damage.
• Identifying mechanisms to mitigate mortality has significant implications for public health and longevity research.

Approach:

• Investigated the role of the Von Hippel-Lindau (VHL) protein in modulating mortality in *C. elegans*.
• Examined the impact of VHL-1 deletion on mortality induced by oxidative stress, temperature, and the *APOE4* genetic variant.
• Assessed the function of stabilized hypoxia-inducible factor 1 (HIF-1) in recapitulating VHL-1's protective effects.

Key Points:

• Targeting VHL-1 protein suppresses mortality from diverse factors including oxidative stress, heat, and *APOE4*.
• Stabilized HIF-1, a VHL-1 target, activates a protective genetic program against cellular damage.
• VHL-HIF pathway inhibition alleviates neurodegenerative markers in *APOE4* mice, indicating conserved function.

Conclusions:

• The VHL-HIF axis is a critical regulator of mortality and *APOE4*-associated damage.
• Targeting VHL-HIF in non-proliferative tissues may offer a therapeutic strategy to reduce cellular damage and mortality.