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MINI REVIEW article

Front. Immunol.

Sec. Viral Immunology

Dysregulated TFEB–Autophagy-Lysosome Pathway Links Acute COVID-19 Immunopathology to Long COVID Sequelae

Provisionally accepted
  • University of Gdansk, Gdansk, Poland

The final, formatted version of the article will be published soon.

Abstract: SARS-CoV-2 disrupts cellular homeostasis, including the autophagy-lysosome pathway (ALP), a critical component of innate immunity and viral clearance. By subverting autophagy, SARS-CoV-2 proteins such as ORF3a, ORF7a, and NSP6 inhibit autophagosome-lysosome (APG-L) fusion, generating "incomplete autophagy" that permits viral persistence and drives hyperinflammation. Transcription factor EB (TFEB), a master regulator of lysosomal biogenesis and autophagy, has emerged as a central player in the host response to coronavirus infection. TFEB orchestrates the expression of genes required for lysosomal function and autophagic flux while also shaping immune processes, including cytokine production, interferon-stimulated gene expression, and inflammasome clearance. This mini review synthesizes current knowledge on the TFEB-ALP axis in COVID-19 pathogenesis, highlighting its influence on acute immunopathology and its potential contribution to post-acute sequelae (Long COVID). Restoring TFEB activity and autophagic flux may counteract SARS-CoV-2 evasion strategies and restrain aberrant inflammatory responses. Harnessing the TFEB-autophagy pathway as a host-directed therapeutic strategy could help rebalance immune homeostasis, limit tissue damage during acute infection, and mitigate persistent inflammatory sequelae in Long COVID.

Keywords: SARS-CoV-2, COVID-19, Long Covid, autophagy-lysosome pathway (ALP), Lysosomal organelle, Transcription factor EB (TFEB), Host-directed therapy

Received: 29 Sep 2025; Accepted: 13 Nov 2025.

Copyright: © 2025 Gabig-Cimińska. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Magdalena Gabig-Cimińska, magdalena.gabig-ciminska@ug.edu.pl

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