Abstract
People with diabetes feature a life-risking susceptibility to respiratory viral infection, including influenza and SARS-CoV-2 (ref. 1), whose mechanism remains unknown. In acquired and genetic mouse models of diabetes, induced with an acute pulmonary viral infection, we demonstrate that hyperglycaemia leads to impaired costimulatory molecule expression, antigen transport and T cell priming in distinct lung dendritic cell (DC) subsets, driving a defective antiviral adaptive immune response, delayed viral clearance and enhanced mortality. Mechanistically, hyperglycaemia induces an altered metabolic DC circuitry characterized by increased glucose-to-acetyl-CoA shunting and downstream histone acetylation, leading to global chromatin alterations. These, in turn, drive impaired expression of key DC effectors including central antigen presentation-related genes. Either glucose-lowering treatment or pharmacological modulation of histone acetylation rescues DC function and antiviral immunity. Collectively, we highlight a hyperglycaemia-driven metabolic-immune axis orchestrating DC dysfunction during pulmonary viral infection and identify metabolic checkpoints that may be therapeutically exploited in mitigating exacerbated disease in infected diabetics.
Original language | English |
---|---|
Pages (from-to) | 645-652 |
Number of pages | 8 |
Journal | Nature |
Volume | 624 |
Issue number | 7992 |
DOIs | |
Publication status | Published - 21 Dec 2023 |
Bibliographical note
We thank the members of the Elinav lab, Weizmann Institute of Science, and members of the microbiome and cancer division, German Cancer Research Center (DKFZ), for insightful discussions. We thank the EFSD/Lilly European Diabetes Research Programme for supporting key aspects of this research. We thank E. Selzer for providing Pdk2/3/4-deficient mice; Y. Merbl for providing OT-I and OT-II mice; I. Sagi for providing PR8 influenza virus; and N. Garbi and R. Alon for providing OVA(SIINFEKL)-PR8 virus. Schemes in Supplementary Fig. were created with a licensed version of BioRender. S.P.N was supported by an SNSF Postdoc Mobility fellowship, SNSF Early Postdoc Mobility Fellowship, EMBO Long-term Fellowship no. 2017-767 and a fellowship from the Swiss Friends of the Weizmann Institute of Science. A.A.K. is a recipient of EMBO Long-term Fellowship no. 2016‐1088 and the European Union’s Horizon 2020 research and innovation programme under Marie Sklodowska‐Curie grant agreement no. 747114. S.K.A. is supported by the Israeli Ministry of Science and Technology Zvi Yanai Fellowship. I.S. is supported by DFG (no. SP1902/1-1). H.S. is the incumbent of the Vera Rosenberg Schwartz Research Fellow Chair. L.S., J.P. and E.E. are supported by a grant from the Hector foundation. E.E. is supported by the Leona M. and Harry B. Helmsley Charitable Trust, Adelis Foundation, Pearl Welinsky Merlo Scientific Progress Research Fund, Park Avenue Charitable Fund, Hanna and Dr Ludwik Wallach Cancer Research Fund, Daniel Morris Trust, Wolfson Family Charitable Trust and Wolfson Foundation, Ben B. and Joyce E. Eisenberg Foundation, White Rose International Foundation, Estate of Malka Moskowitz, Estate of Myron H. Ackerman, Estate of Bernard Bishin for the WIS-Clalit Program, Else Kröener-Fresenius Foundation, Jeanne and Joseph Nissim Center for Life Sciences Research, A. Moussaieff, M. de Botton, Vainboim family, A. Davidoff, the V. R. Schwartz Research Fellow Chair and by grants funded by the European Research Council, European Union Horizon Programme, Israel Science Foundation, Israel Ministry of Science and Technology, Israel Ministry of Health, Helmholtz Foundation, Garvan Institute of Medical Research, European Crohn’s and Colitis Organization, Kenneth Rainin Foundation, Charlie Teo Foundation, CueALZ, Lupus Research Alliance, Jose Carreras Foundation, Mark Foundation for Cancer Research, Deutsch-Israelische Projektkooperation, IDSA Foundation and Wellcome Trust. E.E. is the incumbent of the Sir Marc and Lady Tania Feldmann Professorial Chair, a senior fellow of the Canadian Institute of Advanced Research (CIFAR) and an international scholar of the Bill & Melinda Gates Foundation and Howard Hughes Medical Institute (HHMI).Publisher Copyright:
© 2023, The Author(s).
All Science Journal Classification (ASJC) codes
- General