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Weiss, Thomas S. ; Lupke, Madeleine ; Dayoub, Rania ; Geissler, Edward K. ; Schlitt, Hans J. ; Melter, Michael ; Eggenhofer, Elke

Augmenter of Liver Regeneration Reduces Ischemia Reperfusion Injury by Less Chemokine Expression, Gr-1 Infiltration and Oxidative Stress

Weiss, Thomas S. , Lupke, Madeleine, Dayoub, Rania , Geissler, Edward K., Schlitt, Hans J., Melter, Michael und Eggenhofer, Elke (2019) Augmenter of Liver Regeneration Reduces Ischemia Reperfusion Injury by Less Chemokine Expression, Gr-1 Infiltration and Oxidative Stress. Cells 8 (11), S. 1421.

Veröffentlichungsdatum dieses Volltextes: 07 Feb 2020 11:37
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.41525


Zusammenfassung

Hepatic ischemia reperfusion injury (IRI) is a major complication in liver resection and transplantation. Here, we analyzed the impact of recombinant human augmenter of liver regeneration (rALR), an anti-oxidative and anti-apoptotic protein, on the deleterious process induced by ischemia reperfusion (IR). Application of rALR reduced tissue damage (necrosis), levels of lipid peroxidation ...

Hepatic ischemia reperfusion injury (IRI) is a major complication in liver resection and transplantation. Here, we analyzed the impact of recombinant human augmenter of liver regeneration (rALR), an anti-oxidative and anti-apoptotic protein, on the deleterious process induced by ischemia reperfusion (IR). Application of rALR reduced tissue damage (necrosis), levels of lipid peroxidation (oxidative stress) and expression of anti-oxidative genes in a mouse IRI model. Damage associated molecule pattern (DAMP) and inflammatory cytokines such as HMGB1 and TNF alpha, were not affected by rALR. Furthermore, we evaluated infiltration of inflammatory cells into liver tissue after IRI and found no change in CD3 or gamma delta TCR positive cells, or expression of IL17/IFN gamma by gamma delta TCR cells. The quantity of Gr-1 positive cells (neutrophils), and therefore, myeloperoxidase activity, was lower in rALR-treated mice. Moreover, we found under hypoxic conditions attenuated ROS levels after ALR treatment in RAW264.7 cells and in primary mouse hepatocytes. Application of rALR also led to reduced expression of chemo-attractants like CXCL1, CXCL2 and CCl2 in hepatocytes. In addition, ALR expression was increased in IR mouse livers after 3 h and in biopsies from human liver transplants with minimal signs of tissue damage. Therefore, ALR attenuates IRI through reduced neutrophil tissue infiltration mediated by lower expression of key hepatic chemokines and reduction of ROS generation.



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Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftCells
Verlag:MDPI
Ort der Veröffentlichung:BASEL
Band:8
Nummer des Zeitschriftenheftes oder des Kapitels:11
Seitenbereich:S. 1421
Datum12 November 2019
InstitutionenMedizin > Lehrstuhl für Chirurgie
Medizin > Lehrstuhl für Kinder- und Jugendmedizin
Identifikationsnummer
WertTyp
10.3390/cells8111421DOI
Stichwörter / KeywordsREACTIVE OXYGEN; HEPATIC-INJURY; IN-VITRO; HEPATOCYTES; ISCHEMIA/REPERFUSION; TRANSPLANTATION; MECHANISMS; ACTIVATOR; IMPACT; DRIVE; ischemia reperfusion; liver regeneration; chemokines; neutrophils; oxidative stress; augmenter of liver regeneration
Dewey-Dezimal-Klassifikation600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-415250
Dokumenten-ID41525

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