Bouazzaoui, Abdellatif and Spacenko, Elena and Mueller, Gunnar and Huber, Elisabeth and Schubert, Thomas and Holler, Ernst and Andreesen, Reinhard and Hildebrandt, Gerhard C. (2011) Steroid treatment alters adhesion molecule and chemokine expression in experimental acute graft-vs.-host disease of the intestinal tract. EXPERIMENTAL HEMATOLOGY, 39 (2). pp. 238-249. ISSN 0301-472X, 1873-2399
Full text not available from this repository. (Request a copy)Abstract
Objective. Acute graft-vs.-host disease (aGVHD) is a major complication after allogeneic bone marrow transplantation (allo-BMT) that is characterized by high morbidity and mortality. Systemic treatment with steroids has been the mainstay of first-line therapy of aGVHD, although controlled experimental data in this context are limited. Materials and Methods. Using a haploidentical murine BMT model, steroid effects on hepatic and intestinal inflammation during aGVHD have been investigated. Lethally irradiated B6D2F1 mice received bone marrow cells and splenocytes from either syngeneic (B6D2F1) or allogeneic (C57BL/6) donors. Results. Intraperitoneal administration of prednisolone (2 mg/kg body weight every day) early after onset of GVHD from day +10 until day +42 resulted in reduced clinical GVHD severity and improved survival of allogeneic recipients. Although the liver was barely affected by prednisolone treatment, aGVHD-related histopathologic injury of the gastrointestinal tract was strongly reduced in association with diminished expression of interferon-gamma, tumor necrosis factor, CXCL 9-11, CCL2-3, mucosal addressin cell adhesion molecule - 1, and intercellular adhesion molecule - 1. Prednisolone-induced reduction of adhesion molecule expression in the gut manifested earlier than seen for cytokines or chemokines. Interestingly, when starting steroid treatment on day +28, the course of GVHD was unchanged and no major differences in cyto- or chemokine expression in gastrointestinal tract or liver on day +42 were seen. Conclusions. When started early after GVHD onset, prednisolone-related beneficial effects can affect aGVHD target organs differently, involving divergent regulation of inflammation and leukocyte migration. Specifically, a change in adhesion properties between leukocytes and endothelial cells in the gastrointestinal tract may be one of the initial steps in a cascade of steroid-related aGVHD-attenuating events. (C) 2011 ISEH - Society for Hematology and Stem Cells. Published by Elsevier Inc.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | IDIOPATHIC PNEUMONIA SYNDROME; BONE-MARROW-TRANSPLANTATION; STEM-CELL TRANSPLANTATION; ALLOREACTIVE T-CELLS; ACUTE GVHD; GLUCOCORTICOID-RECEPTOR; IFN-GAMMA; SIGNIFICANTLY CONTRIBUTES; ANTIINFLAMMATORY ACTION; LEUKOCYTE RECRUITMENT; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Innere Medizin III (Hämatologie und Internistische Onkologie) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Jun 2020 06:21 |
| Last Modified: | 26 Jun 2020 06:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21298 |
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