ATG4B antagonizes antiviral immunity by GABARAP-directed autophagic degradation of TBK1

Autophagy. 2023 Nov;19(11):2853-2868. doi: 10.1080/15548627.2023.2233846. Epub 2023 Jul 11.

Abstract

Baf A1: bafilomycin A1; GABARAP: GABA type A receptor-associated protein; GFP: green fluorescent protein; IFN: interferon; IKBKE/IKKi: inhibitor of nuclear factor kappa B kinase subunit epsilon; IRF3: interferon regulatory factor 3; ISG: interferon-stimulated gene; ISRE: IFN-stimulated response element; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MAVS: mitochondrial antiviral signaling protein; MOI: multiplicity of infection; PAMPs: pathogen-associated molecule patterns; RIGI/DDX58: RNA sensor RIG-I; SeV: Sendai virus; siRNA: small interfering RNA; TBK1: TANK binding kinase 1; WT: wild-type; VSV: vesicular stomatitis virus.

Keywords: ATG4B; Antiviral immune response; LC3-interacting region; TBK1; selective autophagy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antiviral Agents*
  • Autophagy
  • Humans
  • Immunity, Innate
  • Interferons
  • Mice
  • Signal Transduction*

Substances

  • Antiviral Agents
  • ATG4B protein, human
  • Atg4b protein, mouse
  • GABARAP protein, human
  • GABARAP protein, mouse
  • Interferons
  • TBK1 protein, human
  • Tbk1 protein, mouse

Grants and funding

This work was supported by the National Natural Science Foundation of China (32170876, 31970700, 32270922, 92042303, 31970538 and 31870862), Science and Technology Planning Project of Guangzhou, China (201907010038), Guangdong Basic and Applied Basic Research Foundation (2020B1515120090), and the Fundamental Research Funds for the Central Universities, Sun Yat-sen University (22qntd2601 and 23lgbj012), Plan on enhancing scientific research in GMU (02-410-2302269XM), National Key R&D Program of China (2021YFA0805800 and 2020YFA0803202), the Guangzhou Medical University Discipline Construction Funds (Basic Medicine) (JCXKJS2022A02), the 111 Project (D18010), the Local Innovative and Research Teams Project of Guangdong Perl River Talents Program (2017BT01S155).