TFEB confers resistance against the chemotherapeutic agent CX-5461

Feb 20, 2026Autophagy reports

TFEB helps cells resist the chemotherapy drug CX-5461

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Abstract

Gemcitabine causes and promotes protective signals through transcription factor EB ().

  • Gemcitabine disrupts DNA replication while also inducing nucleolar stress.
  • The anticancer agent CX-5461, which is designed to induce nucleolar stress, leads to TFEB accumulating in the nucleus.
  • Interfering with TFEB enhances the sensitivity of cancer cells to both CX-5461 and gemcitabine.
  • TFEB is associated with providing protective responses against stress from chemotherapeutic drugs.

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Key numbers

50%
Decrease in clonogenic growth ability
Observed in HeLa and MIA PaCa-2 cells with reduced levels.
60%
Clonogenic growth reduction at highest CX-5461 concentration
Measured in shTFEB cells compared to control at high CX-5461 doses.

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