title: Complex chimerism: pregnancy after solid organ transplantation.
abstract: Thousands of women with organ transplantation have undergone successful pregnancies, however little is known about how the profound immunologic changes associated with pregnancy might influence tolerance or rejection of the allograft. Pregnant women with a solid organ transplant are complex chimeras with multiple foreign cell populations from the donor organ, fetus, and mother of the pregnant woman. We consider the impact of complex chimerism and pregnancy-associated immunologic changes on tolerance of the allograft both during pregnancy and the postpartum period. Mechanisms of allograft tolerance are likely dynamic during pregnancy and affected by the influx of fetal microchimeric cells, HLA relationships (between the fetus, pregnant woman and/or donor), peripheral T cell tolerance to fetal cells, and fetal minor histocompatibility antigens. Further research is necessary to understand the complex immunology during pregnancy and the postpartum period of women with a solid organ transplant.
authors: Department of Obstetrics & Gynecology; University of Washington; Seattle, WA USA.
authors: Kimberly K
authors: KK
authors: Ma
authors: Margaret G
authors: MG
authors: Petroff
authors: Lisa A
authors: LA
authors: Coscia
authors: Vincent T
authors: VT
authors: Armenti
authors: Kristina M
authors: KM
authors: Adams Waldorf
mesh_terms: D046528:Chimerism; D005260:Female; D005333:Fetus / Q000276:immunology; D006084:Graft Rejection / Q000276:immunology*; D006801:Humans; D007108:Immune Tolerance / Q000235:genetics / Q000276:immunology; D008431:Maternal-Fetal Exchange / Q000276:immunology*; D016377:Organ Transplantation; D011225:Pre-Eclampsia / Q000276:immunology; D011247:Pregnancy / Q000276:immunology*; D023001:Transplantation Tolerance / Q000276:immunology*
keywords: chimerism; graft rejection; kidney; liver; microchimerism; pregnancy; tolerance; transplant; transplantation
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