Volume 88, Issue 1 pp. 92-98
Tumor Immunology

Human papillomavirus type 16 E6/E7-specific cytotoxic T lymphocytes in women with cervical neoplasia

Hetty J. Bontkes

Hetty J. Bontkes

Department of Pathology, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, the Netherlands

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Tanja D. de Gruijl

Tanja D. de Gruijl

Department of Pathology, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, the Netherlands

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Adrie J.C. van den Muysenberg

Adrie J.C. van den Muysenberg

Department of Pathology, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, the Netherlands

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René H.M. Verheijen

René H.M. Verheijen

Department of Obstetrics and Gynaecology, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, the Netherlands

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Marij J. Stukart

Marij J. Stukart

Department of Pathology, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, the Netherlands

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Chris J.L.M. Meijer

Corresponding Author

Chris J.L.M. Meijer

Department of Pathology, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, the Netherlands

Department of Pathology, Academisch Ziekenhuis Vrije Universiteit, P.O. Box 7057, 1007 MB Amsterdam, the Netherlands. Fax: 31-20-4442964Search for more papers by this author
Rik J. Scheper

Rik J. Scheper

Department of Pathology, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, the Netherlands

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Simon N. Stacey

Simon N. Stacey

Department of Molecular Biology, Cancer Research Campaign, Paterson Institute for Cancer Research, Christie Hospital National Health Service Trust, Manchester, United Kingdom

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Margaret F. Duggan-Keen

Margaret F. Duggan-Keen

Department of Immunology, Cancer Research Campaign, Paterson Institute for Cancer Research, Christie Hospital National Health Service Trust, Manchester, United Kingdom

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Peter L. Stern

Peter L. Stern

Department of Immunology, Cancer Research Campaign, Paterson Institute for Cancer Research, Christie Hospital National Health Service Trust, Manchester, United Kingdom

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Stephen Man

Stephen Man

Department of Medicine, University of Wales College of Medicine, Cardiff, Wales, United Kingdom

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Leszek K. Borysiewicz

Leszek K. Borysiewicz

Department of Medicine, University of Wales College of Medicine, Cardiff, Wales, United Kingdom

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Jan M.M. Walboomers

Jan M.M. Walboomers

Department of Pathology, Academisch Ziekenhuis Vrije Universiteit, Amsterdam, the Netherlands

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Abstract

Infection with oncogenic human papillomavirus (HPV) types is associated with the development of cervical neoplasia (CIN). The E6 and E7 oncoproteins are constitutively expressed in these lesions and are therefore putative targets for the immune response against HPV. The relation between HPV 16-specific memory cytotoxic T-cell precursor (mCTLp) activity to both oncoproteins and the natural course of cervical dysplasia was analyzed in 38 patients participating in a nonintervention cohort study of women with CIN and 11 HPV 16-positive cervical carcinoma patients. In a cross-sectional study at the end of follow-up prior to biopsy, 8 of 20 patients with a persistent HPV 16 infection had specific mCTLp against at least one of the two oncoproteins. By contrast, no specific mCTLp activity was detected in 11 HPV-negative patients or in 7 patients who had cleared an HPV 16 infection at the end of follow-up. However, 5 of 11 cervical carcinoma patients showed mCTLp activity against the E7 protein only. This study demonstrates that HPV 16 oncogene-specific mCTLp are present in women with HPV 16-positive CIN prior to any intervention. Since HPV-specific mCTLp were detected predominantly in women with high-grade lesions or invasive cervical carcinoma and not in women who cleared the virus, the role of naturally occurring mCTLp in the protection against HPV-associated cervical neoplasia remains to be established. Int. J. Cancer 88:92–98, 2000. © 2000 Wiley-Liss, Inc.

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