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Elloumi N, Bahloul M, Benabdallah E, Kharrat S, Fakhfakh R, Bouchaala K, Abida O, Chtara K, Masmoudi H, Bouaziz M. Genes regulating oxidative-inflammatory response in circulating monocytes and neutrophils in septic syndrome. Biol Futur 2023; 74:199-207. [PMID: 37291472 DOI: 10.1007/s42977-023-00168-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 05/13/2023] [Indexed: 06/10/2023]
Abstract
Despite significant progress in the past decades, sepsis still lacks a specific treatment. Under normal conditions, leucocytes play a critical role in controlling infection and it is suggested that their activity is impaired during sepsis which contribute to the dysregulation of immune reactions. Indeed, in response to infection, several intracellular pathways are affected mainly those regulating the oxidative- inflammatory axis. Herein, we focused on the contribution of NF-kB, iNOS, Nrf2, HO-1 and MPO genes in the pathophysiology of septic syndrome, by analyzing the differential expression of their transcripts in circulating monocytes and neutrophils, and monitoring the nitrosative/oxidative status in septic syndrome patients. Circulating neutrophils of septic patients displayed a significant overexpression of NF-kB compared to other groups. In monocytes, patients with septic shock expressed the highest levels of iNOS and NF-kB mRNA. However, genes involved in cytoprotective response had increased expression in patients with sepsis, in particular, the Nrf2 and its target gene HO-1. Moreover, patient monitoring indicates that the iNOS enzyme expression and NO plasma levels may play a role in assessing the severity of septic conditions. Overall, in either monocytes or neutrophils, we pointed out the major role of NF-κB and Nrf2 in the pathophysiological process. Therefore, therapies targeted to redox abnormalities may be useful for better management of septic patients.
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Affiliation(s)
- Nesrine Elloumi
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia.
| | - Mabrouk Bahloul
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Emna Benabdallah
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia
| | - Sana Kharrat
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Raouia Fakhfakh
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia
| | - Karama Bouchaala
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Olfa Abida
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia
| | - Kamilia Chtara
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Hatem Masmoudi
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia
| | - Mounir Bouaziz
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
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