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Vermeersch V, Léon K, Caillard A, Szczesnowski A, Albacete G, Marec N, Tissier F, Gilbert G, Droguet M, Marcorelles P, Giroux-Metges MA, Huet O. Moderate Exercise Modulates Inflammatory Responses and Improves Survival in a Murine Model of Acute Pneumonia. Crit Care Med 2024; 52:e142-e151. [PMID: 38193770 PMCID: PMC10876171 DOI: 10.1097/ccm.0000000000006166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
OBJECTIVES An association between physical inactivity and worse outcome during infectious disease has been reported. The effect of moderate exercise preconditioning on the immune response during an acute pneumonia in a murine model was evaluated. SETTING Laboratory experiments. SUBJECTS C57BL6/j male mice. INTERVENTIONS Six-week-old C57BL/6J mice were divided in two groups: an exercise group and a control group. In the exercise group, a moderate, progressive, and standardized physical exercise was applied for 8 weeks. It consisted in a daily treadmill training lasting 60 minutes and with an intensity of 65% of the maximal theoretical oxygen uptake. Usual housing recommendation were applied in the control group during the same period. After 8 weeks, pneumonia was induced in both groups by intratracheal instillation of a fixed concentration of a Klebsiella pneumoniae (5 × 103 colony-forming unit) solution. MEASUREMENTS AND MAIN RESULTS Mice preconditioned by physical exercise had a less sever onset of pneumonia as shown by a significant decrease of the Mouse Clinical Assessment Severity Score and had a significantly lower mortality compared with the control group (27% vs. 83%; p = 0.019). In the exercise group, we observed a significantly earlier but transient recruitment of inflammatory immune cells with a significant increase of neutrophils, CD4+ cells and interstitial macrophages counts compared with control group. Lung tumor necrosis factor-α, interleukin (IL)-1β, IL-6, and IL-10 were significantly decreased at 48 hours after pneumonia induction in the exercise group compared with the control group. CONCLUSIONS In our model, preconditioning by moderate physical exercise improves outcome by reducing the severity of acute pneumonia with an increased but transient activation of the innate immune response.
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Affiliation(s)
- Veronique Vermeersch
- Department of Anesthesia and Intensive Care Unit, Brest Teaching Hospital, Brest, France
- ORPHY, EA4324, Université de Bretagne Occidentale, Brest, France
| | - Karelle Léon
- ORPHY, EA4324, Université de Bretagne Occidentale, Brest, France
| | - Anais Caillard
- Department of Anesthesia and Intensive Care Unit, Brest Teaching Hospital, Brest, France
| | | | - Gaëlle Albacete
- ORPHY, EA4324, Université de Bretagne Occidentale, Brest, France
| | - Nadege Marec
- LBAI, Inserm UMR1227, Université de Bretagne Occidentale, Brest, France
| | - Florine Tissier
- ORPHY, EA4324, Université de Bretagne Occidentale, Brest, France
| | | | - Mickael Droguet
- ORPHY, EA4324, Université de Bretagne Occidentale, Brest, France
| | | | - Marie-Agnes Giroux-Metges
- ORPHY, EA4324, Université de Bretagne Occidentale, Brest, France
- Explorations Fonctionnelles Respiratoires, Brest Teaching Hospital, Brest, France
| | - Olivier Huet
- Department of Anesthesia and Intensive Care Unit, Brest Teaching Hospital, Brest, France
- ORPHY, EA4324, Université de Bretagne Occidentale, Brest, France
- Australian and New Zealand Intensive Care research Center, Monash University, Melbourne, VIC, Australia
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Roquilly A, Jacqueline C, Davieau M, Mollé A, Sadek A, Fourgeux C, Rooze P, Broquet A, Misme-Aucouturier B, Chaumette T, Vourc’h M, Cinotti R, Marec N, Gauttier V, McWilliam HEG, Altare F, Poschmann J, Villadangos JA, Asehnoune K. Author Correction: Alveolar macrophages are epigenetically altered after inflammation, leading to long-term lung immunoparalysis. Nat Immunol 2020; 21:962. [DOI: 10.1038/s41590-020-0739-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Roquilly A, Jacqueline C, Davieau M, Mollé A, Sadek A, Fourgeux C, Rooze P, Broquet A, Misme-Aucouturier B, Chaumette T, Vourc'h M, Cinotti R, Marec N, Gauttier V, McWilliam HEG, Altare F, Poschmann J, Villadangos JA, Asehnoune K. Alveolar macrophages are epigenetically altered after inflammation, leading to long-term lung immunoparalysis. Nat Immunol 2020; 21:636-648. [PMID: 32424365 DOI: 10.1038/s41590-020-0673-x] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/30/2020] [Indexed: 12/21/2022]
Abstract
Sepsis and trauma cause inflammation and elevated susceptibility to hospital-acquired pneumonia. As phagocytosis by macrophages plays a critical role in the control of bacteria, we investigated the phagocytic activity of macrophages after resolution of inflammation. After resolution of primary pneumonia, murine alveolar macrophages (AMs) exhibited poor phagocytic capacity for several weeks. These paralyzed AMs developed from resident AMs that underwent an epigenetic program of tolerogenic training. Such adaptation was not induced by direct encounter of the pathogen but by secondary immunosuppressive signals established locally upon resolution of primary infection. Signal-regulatory protein α (SIRPα) played a critical role in the establishment of the microenvironment that induced tolerogenic training. In humans with systemic inflammation, AMs and also circulating monocytes still displayed alterations consistent with reprogramming six months after resolution of inflammation. Antibody blockade of SIRPα restored phagocytosis in monocytes of critically ill patients in vitro, which suggests a potential strategy to prevent hospital-acquired pneumonia.
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Affiliation(s)
- Antoine Roquilly
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France. .,Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, France. .,Department of Microbiology and Immunology, Peter Doherty Institute of Infection and Immunity, The University of Melbourne, Parkville, Victoria, Australia.
| | - Cedric Jacqueline
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France
| | - Marion Davieau
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France
| | - Alice Mollé
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR1064, ITUN, Nantes, France
| | - Abderrahmane Sadek
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR1064, ITUN, Nantes, France.,Department of Biology, Faculty of Science, Moulay Ismail University, Zitoune, Meknes, Morocco
| | - Cynthia Fourgeux
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR1064, ITUN, Nantes, France
| | - Paul Rooze
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France.,Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, France
| | - Alexis Broquet
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France
| | - Barbara Misme-Aucouturier
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France
| | - Tanguy Chaumette
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France
| | - Mickael Vourc'h
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France.,Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, France
| | - Raphael Cinotti
- Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, France
| | - Nadege Marec
- Plateforme Cytocell, SFR François Bonamy, Nantes, France
| | - Vanessa Gauttier
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR1064, ITUN, Nantes, France
| | - Hamish E G McWilliam
- Department of Microbiology and Immunology, Peter Doherty Institute of Infection and Immunity, The University of Melbourne, Parkville, Victoria, Australia.,Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Frederic Altare
- CRCINA, INSERM, Université de Nantes, CHU de Nantes, Nantes, France
| | - Jeremie Poschmann
- Université de Nantes, CHU Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR1064, ITUN, Nantes, France.
| | - Jose A Villadangos
- Department of Microbiology and Immunology, Peter Doherty Institute of Infection and Immunity, The University of Melbourne, Parkville, Victoria, Australia. .,Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, Australia.
| | - Karim Asehnoune
- Université de Nantes, EA3826 Thérapeutiques Anti-Infectieuses, Institut de Recherche en Santé 2 Nantes Biotech, Nantes, France. .,Université de Nantes, CHU Nantes, Pôle Anesthésie-Réanimation, Service d'Anesthésie Réanimation Chirurgicale, Hôtel Dieu, Nantes, France.
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