Vimentin loss inhibits DNA damage responses and promotes cancer cell survival.

Vimentin loss impairs DNA repair and increases cancer cell survival under genotoxic stress, especially in glioblastoma cells, by disrupting nuclear mechanics.

• Why it matters: Understanding how vimentin influences genome maintenance is crucial because it affects tumor progression and therapy resistance, yet its mechanistic role remains unclear.
• What they did: The study used controlled cell compression, genetic, and pharmacological methods to show that vimentin promotes DNA repair by alleviating nuclear mechanical compression, with vimentin-negative cells exhibiting impaired damage sensing.
• The result: Suppressing DNA damage responses through vimentin loss enhances survival after treatments like temozolomide and radiation, revealing a mechanochemical axis that promotes therapy tolerance and genomic instability.