Immunogenetics

, Volume 34, Issue 2, pp 121–128

Interaction of CD4 with HLA class II antigens and HIV gp120

  • Dominique Piatier-Tonneau
  • Louis-Noël Gastinel
  • François Amblard
  • Marianne Wojcik
  • Pierre Vaigot
  • Charles Auffray
Original Articles

DOI: 10.1007/BF00211424

Cite this article as:
Piatier-Tonneau, D., Gastinel, LN., Amblard, F. et al. Immunogenetics (1991) 34: 121. doi:10.1007/BF00211424

Abstract

We have developed a cellular adhesion assay in which B lymphocytes expressing HLA class II antigens form rosettes with COS cells expressing high levels of cell surface CD4 upon transient transfection with a CDM8-CD4 plasmid construct. The assay is specific, quantitative, and overcomes the difficulties encountered with a previously described system using an SV40 viral vector. Rosette formation was inhibited by a series of CD4- and HLA-DR-specific antibodies, as well as by human immunodeficiency virus (HIV) gp 120, and a synthetic peptide derived from part of its binding site for CD4 (amino acid residues 414-434), but not by a variety of other effectors, including several soluble CD4 derivatives. The comparison of this pattern of inhibition with those observed in other systems further emphasizes the great similarity, but incomplete identity, in the CD4 binding sites for HLA class II antigens and HIV gp120, and supports a model in which CD4 is considered as an allosteric servomodulator of T-cell adhesion and function which probably is induced to interact with HLA class II antigens when associated with the Tcr/CD3 complex.

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • Dominique Piatier-Tonneau
    • 1
  • Louis-Noël Gastinel
    • 1
  • François Amblard
    • 1
  • Marianne Wojcik
    • 1
  • Pierre Vaigot
    • 1
  • Charles Auffray
    • 1
  1. 1.Institut d'Embryologie Cellulaire et Moléculaire du CNRS et du Collège de FranceNogent-sur-MarneFrance