Identification of Human Herpesvirus 8-Specific Cytotoxic T-Cell Responses

Author:

Osman Mohamed12,Kubo Toru1,Gill Jasjit3,Neipel Frank4,Becker Marion5,Smith Geoffrey5,Weiss Robin2,Gazzard Brian3,Boshoff Chris2,Gotch Frances1

Affiliation:

1. Department of Immunology,2 Chelsea and Westminster Hospital, Imperial College School of Medicine, and

2. Departments of Oncology and Molecular Pathology, Royal Free and University College Medical School, University College London,1 London, and

3. Department of Genitourinary Medicine3 and

4. Institut für Klinische und Molekulare Virologie, Universität Erlangen-Nürnberg, D-91054 Erlangen, Germany,4 and

5. Dunn School of Pathology, University of Oxford, Oxford,5 United Kingdom

Abstract

ABSTRACT Human herpesvirus 8 (HHV-8) (or Kaposi’s sarcoma-associated herpesvirus) is implicated in the etiopathogenesis of Kaposi’s sarcoma (KS) and certain lymphoproliferations. The introduction of more effective therapies to treat human immunodeficiency virus infection has led to a decline in the incidence of KS and also in the resolution of KS in those already affected. This suggests that cellular immune responses including cytotoxic T lymphocytes (CTLs) could play a vital role in the control of HHV-8 infection and in KS pathogenesis. Here we elucidate HLA class I-restricted, HHV-8-specific cellular immune responses that could be important in the control of HHV-8 infection and subsequent tumor development. We show the presence of CTLs against HHV-8 latent (K12), lytic (K8.1), and highly variable (K1) proteins in infected individuals.

Publisher

American Society for Microbiology

Subject

Virology,Insect Science,Immunology,Microbiology

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