Journal of Clinical Immunology

, Volume 11, Issue 6, pp 345–356

Subset markers of CD8(+) cells and their relation to enhanced cytotoxic T-cell activity during human immunodeficiency virus infection

  • Guido Vanham
  • Luc Kestens
  • Godelieve Penne
  • Christian Goilav
  • Paul Gigase
  • Robert Colebunders
  • Marc Vandenbruaene
  • Johan Goeman
  • Guido van der Groen
  • Jan L. Ceuppens
Original Articles

DOI: 10.1007/BF00918800

Cite this article as:
Vanham, G., Kestens, L., Penne, G. et al. J Clin Immunol (1991) 11: 345. doi:10.1007/BF00918800

Abstract

Using fresh whole blood or isolated lymphocytes, the activity ofin vivo generated cytotoxic T-lymphocytes (CTL) was measured as the OKT3-specific lysis of HL-60 targets, in a cross-sectional study of 53 HIV(+) patients. CTL activity in the entire HIV(+) group was two to three times higher than in HIV(−) controls, with WHO stage 3 (=pre-AIDS) patients showing the highest cytolytic function. The whole-blood CTL assay was validated and its practical and theoretical advantages are discussed. Within the CD8(+) cells, the number and proportion of the CD45RO(+) “memory” subset were significantly increased in HIV(+) subjects. The HLA-DR(+) subset rose most spectacularly in the asymptomatic stage of the infection, while the CD38(+) subset was the only one still significantly rising between the pre-AIDS and the AIDS stage. CTL activity was most closely correlated with T8 cells expressing the CD38 marker. In the context of CTL, CD38 thus seems to reflect activation rather than immaturity. Lymphocytes from HIV(+) subjects with a high OKT3-specific lytic capacity also destroyed normal lymphoblasts to a significant extent, pointing to their possible involvement in an autodestructive process. Our data thus suggest the importance of T8 cytolytic function and/or T8 subtyping in the immunopathogenesis and the prognosis of HIV infection.

Key words

Cytotoxic T cellshuman immunodeficiency virus (HIV)natural killer cellsactivated CD8 subsetsautoimmunity

Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • Guido Vanham
    • 1
  • Luc Kestens
    • 1
  • Godelieve Penne
    • 1
  • Christian Goilav
    • 1
  • Paul Gigase
    • 1
  • Robert Colebunders
    • 2
  • Marc Vandenbruaene
    • 2
  • Johan Goeman
    • 2
  • Guido van der Groen
    • 2
  • Jan L. Ceuppens
    • 3
  1. 1.Laboratory of Pathology & ImmunologyInstitute of Tropical MedicineAntwerpBelgium
  2. 2.Laboratory of MicrobiologyInstitute of Tropical MedicineAntwerpBelgium
  3. 3.Laboratory of Clinical Immunology, Faculty of MedicineCatholic University LeuvenLeuvenBelgium
  4. 4.Department of Pathology & ImmunologyInstitute of Tropical MedicineAntwerpen 1Belgium