SARS-CoV-2 nonstructural protein 6 triggers endoplasmic reticulum stress-induced autophagy to degrade STING1

Autophagy. 2023 Dec;19(12):3113-3131. doi: 10.1080/15548627.2023.2238579. Epub 2023 Jul 23.

Abstract

aa: amino acid; ATF6: activating transcription factor 6; ATG5: autophagy related 5; CCPG1: cell cycle progression 1; CFTR: CF transmembrane conductance regulator; cGAMP: cyclic GMP-AMP; CGAS: cyclic GMP-AMP synthase; CHX: cycloheximide; Co-IP: co-immunoprecipitation; CQ: chloroquine; EIF2A/eIF2α: eukaryotic translation initiation factor 2A; EIF2AK3/PERK: eukaryotic translation initiation factor 2 alpha kinase 3; ER: endoplasmic reticulum; ERN1/IRE1: endoplasmic reticulum to nucleus signaling 1; GFP: green fluorescent protein; HSPA5/GRP78: heat shock protein family A (Hsp70) member 5; HSV-1: herpes simplex virus type 1; IFIT1: interferon induced protein with tetratricopeptide repeats 1; IFNB1/IFN-β: interferon beta 1; IRF3: interferon regulatory factor 3; ISG15: ISG15 ubiquitin like modifier; MAP1LC3B/LC3B: microtubule associated protein 1 light chain 3 beta; MAP3K7/TAK1: mitogen-activated protein kinase kinase kinase 7; MAVS: mitochondrial antiviral signaling protein; MOI: multiplicity of infection; NFKB/NF-κB: nuclear factor kappa B; NSP6: non-structural protein 6; Δ106-108: deletion of amino acids 106-108 in NSP6 of SARS-CoV-2; Δ105-107: deletion of amino acids 105-107 in NSP6 of SARS-CoV-2; RETREG1/FAM134B: reticulophagy regulator 1; RIGI/DDX58: RNA sensor RIG-I; SQSTM1/p62: sequestosome 1; STING1: stimulator of interferon response cGAMP interactor 1; TBK1: TANK binding kinase 1.

Keywords: Autophagy; HSPA5; NSP6; SARS-CoV-2; STING1; endoplasmic reticulum stress.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acids
  • Autophagy / physiology
  • COVID-19*
  • Endoplasmic Reticulum Chaperone BiP
  • Endoplasmic Reticulum Stress / physiology
  • Humans
  • Interferons
  • SARS-CoV-2*

Substances

  • Endoplasmic Reticulum Chaperone BiP
  • Interferons
  • Amino Acids

Grants and funding

This work was supported by the National Key Research and Development Program of China (2021YFC2600200), the Strategic Priority Research Program of Chinese Academy of Sciences (XDB29010000), the National Natural Science Foundation of China (32170143), and the Special Postdoctoral Researcher Program of the Chinese Academy of Sciences (E1295101).