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Cellular and Molecular Life Sciences

, Volume 68, Issue 3, pp 353–368 | Cite as

The role of HLA-G in immunity and hematopoiesis

  • Edgardo D. Carosella
  • Silvia Gregori
  • Nathalie Rouas-Freiss
  • Joel LeMaoult
  • Catherine Menier
  • Benoit Favier
Multi-Author Review

Abstract

The non-classical HLA class I molecule HLA-G was initially shown to play a major role in feto–maternal tolerance. Since this discovery, it has been established that HLA-G is a tolerogenic molecule which participates to the control of the immune response. In this review, we summarize the recent advances on (1) the multiple structures of HLA-G, which are closely associated with their role in the inhibition of NK cell cytotoxicity, (2) the factors that regulate the expression of HLA-G and its receptors, (3) the mechanism of action of HLA-G at the immunological synapse and through trogocytosis, and (4) the generation of suppressive cells through HLA-G. Moreover, we also review recent findings on the non-immunological functions of HLA-G in erythropoiesis and angiogenesis.

Keywords

HLA-G ILT Dimers Immunological synapse Trogocytosis Regulatory cells Haematopoiesis Erythroid progenitors Angiogenesis 

Abbreviations

HLA-G

Human leukocyte antigen G

NK cell

Natural killer cell

IS

Immunological synapse

ILT

Immunoglobulin-like transcript

B2M

β2-Microglobulin

Notes

Acknowledgment

This work was supported by the Commissariat a l’energie atomique et aux energies alternatives (CEA).

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Copyright information

© Springer Basel AG 2010

Authors and Affiliations

  • Edgardo D. Carosella
    • 1
    • 2
    • 4
  • Silvia Gregori
    • 3
  • Nathalie Rouas-Freiss
    • 1
    • 2
  • Joel LeMaoult
    • 1
    • 2
  • Catherine Menier
    • 1
    • 2
  • Benoit Favier
    • 1
    • 2
  1. 1.CEA, I2BM, Service de Recherches en Hemato-ImmunologieParisFrance
  2. 2.UMR_E, Universite Paris 7IUH, Hopital Saint-LouisParisFrance
  3. 3.Department of Regenerative Medicine, Stem Cells, and Gene TherapySan Raffaele Telethon Institute for Gene Therapy (HSR-TIGET)MilanItaly
  4. 4.CEA-SRHI, Hopital St. LouisParisFrance

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