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Omega-3 from fish oil augments GVHD through the enhancement of chemotherapy conditioning regimen and selective FoxP3 depletion
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2013 (English)In: Bone Marrow Transplantation, ISSN 0268-3369, E-ISSN 1476-5365, Vol. 48, no 6, 843-848 p.Article in journal (Refereed) Published
Abstract [en]

Omega-3 is known to enhance the effects of several chemotherapeutic agents and to exert several immunoregulatory actions In the present study, we evaluated the effects of a 21-day feeding regimen with omega-3-rich fish oil (FO) and its corresponding control, omega-6 rich corn oil (CO), on the BU-CY conditioning and the development of GVHD after BMT in mice. Before conditioning, FO, but not CO, feeding caused a significant attenuation in the number and functionality of splenic FoxP3+ T regulatory cells (Treg). FO feeding also enhanced the effects of the conditioning through severe depletion of Treg cells in the spleen and CD11b+ myeloid cells in both the BM and spleen. Consequently, FO-fed animals conditioned with BU-CY showed exacerbated GVHD following transplantation with allogeneic BM and splenic cells. In contrast, identical transplantation in CO-fed mice resulted in poor engraftment and body weight loss. Moreover, in standard-fed recipients, BMT with cells from FO-fed donors resulted in moderate GVHD and improved the survival time, whereas BMT with cells from CO-fed donors shortened the survival time and caused anemia. We conclude that food supplements should be considered in patients undergoing BMT and/or chemotherapy treatment.

Place, publisher, year, edition, pages
2013. Vol. 48, no 6, 843-848 p.
Keyword [en]
omega-3, conditioning regimen, BU, CY, SCT, omega-6
National Category
Clinical Medicine
URN: urn:nbn:se:uu:diva-203536DOI: 10.1038/bmt.2012.227ISI: 000319967200017OAI: oai:DiVA.org:uu-203536DiVA: diva2:637137
Available from: 2013-07-16 Created: 2013-07-15 Last updated: 2014-10-14Bibliographically approved

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