ARRDC4-mediated glycolysis enhances innate immunity to influenza A virus through fructose-1,6-bisphosphate
Glucose metabolism impacts the innate immune response against viral infection. However, the key enzymes or the natural products and mechanisms involved are not well elucidated. Here, we found that arrestin domain containing 4 (ARRDC4), a critical regulator of glucose metabolism, senses influenza A virus (IAV) infection by interacting with viral PA protein. Upregulated ARRDC4 increases the enzymatic activity of phosphofructokinase, muscle type (PFKM) via binding its His298 site to promote the production of the metabolite fructose-1,6-bisphosphate (FBP). Consequently, FBP inhibits the K48-linked ubiquitination degradation of HSP90β, subsequently enhances its interaction with IKKβ and IKKε, and enhances NF-κB- and IRF7-mediated antiviral innate immunity, respectively. Importantly, FBP supplementation enhanced IFN-β-mediated antiviral innate immunity in vitro and in vivo. Our findings highlight a unique immunometabolic regulatory mechanism in which ARRDC4 senses IAV infection and regulates antiviral innate immunity through the PFKM-FBP metabolic axis and provide a strategy for manipulating FBP-related metabolism to treat viral infection.
Authors
- Zhimin Jiang (ORCID: https://orcid.org/0000-0002-9797-6493)
- Honglei Sun (ORCID: https://orcid.org/0000-0002-8702-4341)
- Tony Velkov (ORCID: https://orcid.org/0000-0002-0017-7952)
- Juan Pu (ORCID: https://orcid.org/0000-0001-7178-383X)
- Yipeng Sun (ORCID: https://orcid.org/0000-0001-9399-0039)
- Chongshan Dai (ORCID: https://orcid.org/0000-0002-4677-0524)
- Litao Liu (ORCID: https://orcid.org/0000-0002-6871-6887)
- Hui Ai
- Qingxuan Tong (ORCID: https://orcid.org/0009-0005-9527-9298)
- Yuhan Li (ORCID: https://orcid.org/0000-0002-0133-7065)
- Zhen Wang (ORCID: https://orcid.org/0000-0003-4002-7892)
- Jie Wang (ORCID: https://orcid.org/0000-0001-7870-0646)
- Chao Ma (ORCID: https://orcid.org/0000-0002-3866-0894)
- Jinhua Liu (ORCID: https://orcid.org/0000-0002-4128-1043)
- Mingyue Chen (ORCID: https://orcid.org/0000-0001-6744-5256)
Institutions
- Jilin University (CN)
- National Center for Emerging and Zoonotic Infectious Diseases (US)
- Sanya University (CN)
- Ministry of Agriculture and Rural Affairs (CN)
- Sunny BioDiscovery (United States) (US)
- China Agricultural University (CN)
- Monash University (AU)
Publication Details
- Journal
- Proceedings of the National Academy of Sciences
- Published
- 2025-08-28
- DOI
- https://doi.org/10.1073/pnas.2512385122
- Citations
- 3
- Primary Topic
- Endoplasmic Reticulum Stress and Disease
- Type
- article
- Field-Weighted Citation Impact
- 3.45
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation