STING-driven activation of TFEB/TFE3 establishes a negative feedback loop to control immune homeostasis

Cell Signal. 2026 Mar:139:112322. doi: 10.1016/j.cellsig.2025.112322. Epub 2025 Dec 12.

Abstract

Recently several studies have identified that transcription factor EB (TFEB) and transcription factor E3 (TFE3) are the crucial regulators bridging the crosstalk between lysosomes and the cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway. Moreover, this TFEB/TFE3-mediated pathway establishes an essential negative feedback loop, revealing a novel self-regulatory mechanism in innate immunity, which suppresses IRF3 phosphorylation and IFN secretion, reduces caspase-3 activation, and enhances cell survival. Collectively, these findings unveil a critical role for TFEB/TFE3 in the maintenance of immune homeostasis, highlighting their functions in preventing excessive immune responses and protecting cell survival. In this review, we will summarize these findings and discuss the new insights they bring to our understanding of the interplay among the cGAS-STING pathway, lysosomal function, and innate immunity.

Keywords: Autophagy; Lysosomes; TFE3; TFEB; cGAS-STING.

Publication types

  • Review

MeSH terms

  • Animals
  • Basic Helix-Loop-Helix Leucine Zipper Transcription Factors* / metabolism
  • Feedback, Physiological
  • Homeostasis*
  • Humans
  • Immunity, Innate*
  • Interferon Regulatory Factor-3 / metabolism
  • Lysosomes / metabolism
  • Membrane Proteins* / metabolism
  • STING Protein
  • Signal Transduction

Substances

  • Basic Helix-Loop-Helix Leucine Zipper Transcription Factors
  • Membrane Proteins
  • STING1 protein, human
  • TFEB protein, human
  • TFE3 protein, human
  • Interferon Regulatory Factor-3
  • STING Protein