PMID- 21185786 OWN - NLM STAT- MEDLINE DCOM- 20110321 LR - 20151119 IS - 1521-7035 (Electronic) IS - 1521-6616 (Linking) VI - 138 IP - 2 DP - 2011 Feb TI - High level of soluble HLA-G in amniotic fluid is correlated with congenital transmission of Toxoplasma gondii. PG - 129-34 LID - 10.1016/j.clim.2010.12.004 [doi] AB - The expression of human leukocyte antigen (HLA)-G on cytotrophoblast cells contributes to maternal-fetal tolerance. Soluble forms of HLA-G (sHLA-G) can be detected in amniotic fluid (AF) and a decrease of sHLA-G is known to be correlated to fetal loss. In this work we investigated the role of sHLA-G in the transplacental passage of the protozoan parasite Toxoplasma gondii, responsible for congenital toxoplasmosis in about 30% of fetuses when primary infection (PI) occurs during pregnancy. We determined the sHLA-G concentration in 61 AF from women with PI and 24 controls. Our results showed higher sHLA-G levels in AF from PI than in controls (p<0.001). Moreover sHLA-G level from congenitally infected fetuses (n=12) was higher than in fetus in whom congenital infection was ruled out (n=49, p<0.05). These data suggest that sHLA-G could participate in immunomodulation necessary to avoid fetal loss due to Toxoplasma infection, but that over-expression could favor congenital transmission. CI - Copyright (c) 2010 Elsevier Inc. All rights reserved. FAU - Robert-Gangneux, Florence AU - Robert-Gangneux F AD - Laboratoire de Parasitologie, Faculte de Medecine et Centre Hospitalier Universitaire de Rennes, Rennes, France. florence.robert-gangneux@univ-rennes1.fr FAU - Gangneux, Jean-Pierre AU - Gangneux JP FAU - Vu, Nicolas AU - Vu N FAU - Jaillard, Sylvie AU - Jaillard S FAU - Guiguen, Claude AU - Guiguen C FAU - Amiot, Laurence AU - Amiot L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101224 PL - United States TA - Clin Immunol JT - Clinical immunology (Orlando, Fla.) JID - 100883537 RN - 0 (Biomarkers) RN - 0 (HLA Antigens) RN - 0 (HLA-G Antigens) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Interleukins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Amniotic Fluid/*immunology MH - Biomarkers/analysis MH - Female MH - HLA Antigens/*analysis/immunology MH - HLA-G Antigens MH - Histocompatibility Antigens Class I/*analysis/immunology MH - Humans MH - Infant MH - Infant, Newborn MH - *Infectious Disease Transmission, Vertical MH - Interferon-gamma/analysis/immunology MH - Interleukins/analysis/immunology MH - Male MH - Pregnancy MH - Pregnancy Complications, Parasitic/*diagnosis MH - Retrospective Studies MH - Toxoplasma/*immunology/isolation & purification MH - Toxoplasmosis, Congenital/*diagnosis/transmission MH - Trophoblasts/immunology/parasitology MH - Tumor Necrosis Factor-alpha/analysis/immunology EDAT- 2010/12/28 06:00 MHDA- 2011/03/22 06:00 CRDT- 2010/12/28 06:00 PHST- 2010/08/31 00:00 [received] PHST- 2010/12/06 00:00 [revised] PHST- 2010/12/06 00:00 [accepted] PHST- 2010/12/28 06:00 [entrez] PHST- 2010/12/28 06:00 [pubmed] PHST- 2011/03/22 06:00 [medline] AID - S1521-6616(10)00779-5 [pii] AID - 10.1016/j.clim.2010.12.004 [doi] PST - ppublish SO - Clin Immunol. 2011 Feb;138(2):129-34. doi: 10.1016/j.clim.2010.12.004. Epub 2010 Dec 24.