PMID- 19135113 OWN - NLM STAT- MEDLINE DCOM- 20090702 LR - 20111117 IS - 1879-1166 (Electronic) IS - 0198-8859 (Linking) VI - 70 IP - 2 DP - 2009 Feb TI - Heterogeneous expression of HLA-G1, -G2, -G5, -G6, and -G7 in myeloid and plasmacytoid dendritic cells isolated from umbilical cord blood. PG - 104-9 LID - 10.1016/j.humimm.2008.12.001 [doi] AB - Human leukocyte antigen (HLA)-G is a human nonclassic major histocompatibility complex (MHC) molecule characterized by a limited polymorphism and a low, restricted cell surface expression. HLA-G is constitutively expressed on trophoblasts, fetal endothelial, and epithelial cells, conferring alloimmune protection during pregnancy. HLA-G is also expressed in some malignancies and on macrophages and dendritic cells (DC) in tumoral and inflammatory diseases. Because DC constitute an important component in the immune response and umbilical cord blood has a different immune behavior than peripheral blood, the HLA-G protein profile and mRNA expression were investigated on the different DC subsets present in cord blood. Surface and intracellular expression have been reported on DC and HLA-G1, -G2, -G5, -G6, and -G7 transcripts were present. Different levels of soluble HLA-G were obtained from serum and correlated with gene expression. These data are in contrast with the data previously described for adult peripheral blood, where a limited pattern of HLA-G transcripts was reported; only in the maturation process were more isoforms present. These results demonstrate that DC from cord blood have a different behavior than DC in peripheral blood and could be in accordance with the results obtained in cord blood transplantation, where a lesser effect of graft-versus-host disease exists than in bone marrow transplantation. FAU - Roman, Angela AU - Roman A AD - Unidad de Inmunoterapia Celular, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Madrid, Spain. FAU - Rodriguez, Miriam AU - Rodriguez M FAU - Herraiz, Miguel A AU - Herraiz MA FAU - Jorda, Julia AU - Jorda J FAU - Cervera, Isabel AU - Cervera I FAU - Penaloza, Jorge AU - Penaloza J FAU - Vidart, Jose A AU - Vidart JA FAU - Martinez-Laso, Jorge AU - Martinez-Laso J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090107 PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 RN - 0 (HLA Antigens) RN - 0 (HLA-G Antigens) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Protein Isoforms) SB - IM MH - Animals MH - Dendritic Cells/*immunology MH - Female MH - Fetal Blood/cytology/*immunology MH - Gene Expression Regulation MH - Graft vs Host Disease/genetics/immunology/metabolism MH - HLA Antigens/blood/*genetics/*immunology MH - HLA-G Antigens MH - Histocompatibility Antigens Class I/blood/*genetics/*immunology MH - Humans MH - Leukocytes, Mononuclear/immunology/metabolism MH - Myeloid Cells/*immunology MH - Pregnancy MH - Protein Isoforms/genetics/immunology MH - Transplantation, Homologous EDAT- 2009/01/13 09:00 MHDA- 2009/07/03 09:00 CRDT- 2009/01/13 09:00 PHST- 2008/03/10 00:00 [received] PHST- 2008/11/17 00:00 [revised] PHST- 2008/12/04 00:00 [accepted] PHST- 2009/01/13 09:00 [entrez] PHST- 2009/01/13 09:00 [pubmed] PHST- 2009/07/03 09:00 [medline] AID - S0198-8859(08)00542-9 [pii] AID - 10.1016/j.humimm.2008.12.001 [doi] PST - ppublish SO - Hum Immunol. 2009 Feb;70(2):104-9. doi: 10.1016/j.humimm.2008.12.001. Epub 2009 Jan 7.