Online-Ressource | |
Verfasst von: | Ruhrmann, Sophie [VerfasserIn] |
Schneck, Emmanuel [VerfasserIn] | |
Markmann, Melanie [VerfasserIn] | |
Zink, Jan [VerfasserIn] | |
Zajonz, Thomas Simon [VerfasserIn] | |
Arens, Christoph [VerfasserIn] | |
Uhle, Florian [VerfasserIn] | |
Sander, Michael [VerfasserIn] | |
Koch, Christian [VerfasserIn] | |
Titel: | Trauma-induced long-term alterations of human T cells and monocytes |
Titelzusatz: | results of an explorative, cross-sectional study |
Verf.angabe: | Sophie Ruhrmann, Emmanuel Schneck, Melanie Markmann, Jan Zink, Thomas Simon Zajonz, Christoph Arens, Florian Uhle, Michael Sander, Christian Koch |
Jahr: | 2020 |
Umfang: | 8 S. |
Fussnoten: | Gesehen am 08.10.2020 |
Titel Quelle: | Enthalten in: Shock |
Ort Quelle: | Hagerstown, Md. : Lippincott, Williams & Wilkins, 1994 |
Jahr Quelle: | 2020 |
Band/Heft Quelle: | 53(2020), 1, Seite 35-42 |
ISSN Quelle: | 1540-0514 |
Abstract: | Background: Major trauma leads to complex immune reactions, known to result in a transient immunodeficiency. The long-term consequences of severe trauma on immune function and regulation as well as its clinical impact remain unclear. Methods: Six months (ranging from −12 to +5 days) after a major trauma event, 12 former trauma patients (Injury Severity Score ≥ 16) and 12 healthy volunteers were enrolled. The current clinical status and infection history since discharge were assessed by a standardized questionnaire. Immune cell subsets (cluster of differentiation (CD)4+, CD8+, CD14+), cell surface receptor expression (programmed cell death protein 1 (PD-1), B- and T-lymphocyte attenuator (BTLA), cytotoxic T-lymphocyte-associated protein 4, toll-like receptor (TLR)-2, -4, and -5, Dectin-1, programmed death ligand 1 (PD-1L)), and human leucocyte antigen D-related receptor (HLA-DR)-expression were quantified by flow cytometry. Cytokine secretion (IL-2, -4, -6, -10, and 17A, tumor necrosis factor (TNF)-α, and interferon (IFN)-γ) was assessed after stimulation of whole blood with LPS-, α-CD3/28, or zymosan. Results: Analysis of surface receptors on T cells revealed a significant elevation of PD-1 expression on CD4+ T cells, whereas BTLA expression on CD4+ and CD8+ T cells was significantly suppressed in the trauma cohort. Monocytes showed a significantly reduced expression of TLR-2 and -4 as well as a reduced proportion of TLR-4 monocytes. HLA-DR receptor density revealed no significant changes between both cohorts. LPS-induced IL-6 and TNF-α secretion showed non-significant trends toward reduced values. No differences regarding clinical apparent infections could be detected. Conclusions: Six months following major trauma, changes of cell surface receptors on CD4+ and CD8+ T cells as well as on CD14+ monocytes were present, hinting toward an immunosuppressive phenotype. Following major trauma, although IL-6 and TNF-α release after stimulation were reduced, they did not reach statistical significance. Overall, further studies are necessary to evaluate the clinical implications of these findings. |
DOI: | doi:10.1097/SHK.0000000000001358 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt. Volltext: https://doi.org/10.1097/SHK.0000000000001358 |
Volltext: https://journals.lww.com/shockjournal/Abstract/2020/01000/Trauma_Induced_Long_Term_Alterations_of_Human_T.5.aspx | |
DOI: https://doi.org/10.1097/SHK.0000000000001358 | |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1735197955 |
Verknüpfungen: | → Zeitschrift |