|
|
||||||||

*
Laboratoire Universitaire dHématologie et de la Biologie des Cellules Sanguines, Faculté de Médecine, Université de Rennes I, Rennes, France; and
Institut National de la Santé et de la Recherche Médicale, Unité 503, Ecole Normale Supérieure, Lyon, France
After infection, human CMV (HCMV) establishes a latent and persistent infection in immature myeloid progenitors and peripheral blood monocytes. Completion of the HCMV life cycle is possible upon maturation of monocytes to tissue macrophages and under permissive circumstances, e.g., immunosuppression. We investigated the hypothesis that HLA-G molecules could be induced during HCMV reactivation in activated macrophages to favor virus dissemination. In this study, we provide evidence that HLA-G Ags are produced during viral reactivation in macrophages generated after allogeneic stimulation of HCMV latently infected monocytes. While HLA-G surface expression is up-regulated, classical MHC-I molecules are partially down-regulated by HCMV. In vivo, bronchoalveolar macrophages collected from patients suffering from acute HCMV pneumonitis also express HLA-G molecules. The direct correlation between HLA-G Ag induction and HCMV infection was confirmed in U-373 MG astrocytoma cells. Soluble HLA-G expression is stimulated upon HCMV infection, and this modulation depends on the cooperative action of the two immediate-early-1 pp72 and immediate-early-2 pp86 products. Because HLA-G transcription is active in macrophages and U-373 MG astrocytoma cells, it is likely that the modulation of HLA-G protein expression during HCMV replication occurs at a post-transcriptional level. Our data suggest that induction of HLA-G molecules could be an additional mechanism that helps HCMV to subvert host defenses.
This article has been cited by other articles:
![]() |
J. LeMaoult, J. Caumartin, M. Daouya, B. Favier, S. L. Rond, A. Gonzalez, and E. D. Carosella Immune regulation by pretenders: cell-to-cell transfers of HLA-G make effector T cells act as regulatory cells Blood, March 1, 2007; 109(5): 2040 - 2048. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Lafon, C. Prehaud, F. Megret, M. Lafage, G. Mouillot, M. Roa, P. Moreau, N. Rouas-Freiss, and E. D. Carosella Modulation of HLA-G Expression in Human Neural Cells after Neurotropic Viral Infections J. Virol., December 15, 2005; 79(24): 15226 - 15237. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. S. Hunt, M. G. Petroff, R. H. McIntire, and C. Ober HLA-G and immune tolerance in pregnancy FASEB J, May 1, 2005; 19(7): 681 - 693. [Abstract] [Full Text] [PDF] |
||||
![]() |
I. Noci, B. Fuzzi, R. Rizzo, L. Melchiorri, L. Criscuoli, S. Dabizzi, R. Biagiotti, S. Pellegrini, A. Menicucci, and O.R. Baricordi Embryonic soluble HLA-G as a marker of developmental potential in embryos Hum. Reprod., January 1, 2005; 20(1): 138 - 146. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Derrien, N. Pizzato, G. Dolcini, E. Menu, G. Chaouat, F. Lenfant, F. Barre-Sinoussi, and P. L. Bouteiller Human immunodeficiency virus 1 downregulates cell surface expression of the non-classical major histocompatibility class I molecule HLA-G1 J. Gen. Virol., July 1, 2004; 85(7): 1945 - 1954. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Terauchi, H. Koi, C. Hayano, N. Toyama-Sorimachi, H. Karasuyama, Y. Yamanashi, T. Aso, and M. Shirakata Placental Extravillous Cytotrophoblasts Persistently Express Class I Major Histocompatibility Complex Molecules after Human Cytomegalovirus Infection J. Virol., August 1, 2003; 77(15): 8187 - 8195. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Shiroishi, K. Tsumoto, K. Amano, Y. Shirakihara, M. Colonna, V. M. Braud, D. S. J. Allan, A. Makadzange, S. Rowland-Jones, B. Willcox, et al. Human inhibitory receptors Ig-like transcript 2 (ILT2) and ILT4 compete with CD8 for MHC class I binding and bind preferentially to HLA-G PNAS, July 22, 2003; 100(15): 8856 - 8861. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. Odeberg, H. Browne, S. Metkar, C. J. Froelich, L. Branden, D. Cosman, and C. Soderberg-Naucler The Human Cytomegalovirus Protein UL16 Mediates Increased Resistance to Natural Killer Cell Cytotoxicity through Resistance to Cytolytic Proteins J. Virol., April 15, 2003; 77(8): 4539 - 4545. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. Moreau, G. Mouillot, P. Rousseau, C. Marcou, J. Dausset, and E. D. Carosella HLA-G gene repression is reversed by demethylation PNAS, February 4, 2003; 100(3): 1191 - 1196. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Moutaftsi, A. M. Mehl, L. K. Borysiewicz, and Z. Tabi Human cytomegalovirus inhibits maturation and impairs function of monocyte-derived dendritic cells Blood, April 15, 2002; 99(8): 2913 - 2921. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Urosevic, J. Willers, B. Mueller, W. Kempf, G. Burg, and R. Dummer HLA-G protein up-regulation in primary cutaneous lymphomas is associated with interleukin-10 expression in large cell T-cell lymphomas and indolent B-cell lymphomas Blood, January 15, 2002; 99(2): 609 - 617. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. C. Ibrahim, N. Guerra, M.-J. T. Lacombe, E. Angevin, S. Chouaib, E. D. Carosella, A. Caignard, and P. Paul Tumor-specific Up-Regulation of the Nonclassical Class I HLA-G Antigen Expression in Renal Carcinoma Cancer Res., September 1, 2001; 61(18): 6838 - 6845. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Urosevic, M. O. Kurrer, J. Kamarashev, B. Mueller, W. Weder, G. Burg, R. A. Stahel, R. Dummer, and A. Trojan Human Leukocyte Antigen G Up-Regulation in Lung Cancer Associates with High-Grade Histology, Human Leukocyte Antigen Class I Loss and Interleukin-10 Production Am. J. Pathol., September 1, 2001; 159(3): 817 - 824. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Lefebvre, S. Berrih-Aknin, F. Adrian, P. Moreau, S. Poea, L. Gourand, J. Dausset, E. D. Carosella, and P. Paul A Specific Interferon (IFN)-stimulated Response Element of the Distal HLA-G Promoter Binds IFN-regulatory Factor 1 and Mediates Enhancement of This Nonclassical Class I Gene by IFN-beta J. Biol. Chem., February 23, 2001; 276(9): 6133 - 6139. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |