1. Lack of gamma delta T cells ameliorates inflammatory response after acute intestinal ischemia reperfusion in mice
- Author
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Omid Madadi-Sanjani, Benno M. Ure, Tawan Imvised, Xiaoyan Feng, Christian Klemann, Yi Yu, Faikah Gueler, Immo Prinz, Dominik Funken, and J. F. Kuebler
- Subjects
Male ,medicine.medical_treatment ,Science ,Gene Expression ,Paediatric research ,Article ,Flow cytometry ,Mice ,Immunity ,Gene expression ,medicine ,Animals ,Intraepithelial Lymphocytes ,Inflammation ,Mice, Knockout ,Kidney ,Multidisciplinary ,Lung ,medicine.diagnostic_test ,business.industry ,urogenital system ,medicine.disease ,Acute Intestinal Ischemia ,Intestines ,Mice, Inbred C57BL ,Experimental models of disease ,Disease Models, Animal ,Cytokine ,medicine.anatomical_structure ,Neutrophil Infiltration ,Reperfusion Injury ,Immunology ,Medicine ,Chemokines ,business ,Infiltration (medical) - Abstract
T-cells have been demonstrated to modulate ischemia–reperfusion injury (IRI) in the kidney, lung, liver, and intestine. Whereas most T-cell subpopulations contribute primarily to the antigen-specific effector and memory phases of immunity, γδ-T-cells combine adaptive features with rapid, innate-like responses that can place them in the initiation phase of immune reactions. Therefore, we aimed to clarify the role of γδ-T-cells in intestinal IRI. Adult wild-type (WT) and γδ-T-cell-deficient mice were subjected to acute intestinal IRI. Gene expression of pro-inflammatory cytokines and influx of leukocyte subpopulations in the gut were assessed by qPCR and flow cytometry. Serum transaminases were measured as an indicator of distant organ IRI. Intestinal IRI led to increased influx of neutrophils, pro-inflammatory cytokine expression and LDH/ALT/AST elevation. Selective deficiency of γδ-T-cells significantly decreased pro-inflammatory cytokine levels and neutrophil infiltration in the gut following IRI compared to controls. Furthermore, γδ-T-cell deficiency resulted in decreased LDH and transaminases levels in sera, indicating amelioration of distant organ injury. Increasing evidence demonstrates a key role of T-cell subpopulations in IRI. We demonstrate that γδ-T-cell deficiency ameliorated pro-inflammatory cytokine production, neutrophil recruitment and distant organ injury. Thus, γδ-T-cells may be considered as mediators contributing to the inflammatory response in the acute phase of intestinal IRI.
- Published
- 2021