CD8+ and CD4+ tumour infiltrating lymphocytes in relation to human papillomavirus status and clinical outcome in tonsillar and base of tongue squamous cell carcinoma

Autor: Anders Näsman, Nikolaos Tertipis, Lars Sivars, Torbjörn Ramqvist, Cecilia Nordfors, Linnea Haeggblom, Tina Dalianis, Linda Marklund, Andreas Ährlund-Richter, Tommy Nyberg, Nathalie Grün, Eva Munck-Wikland, Juan Du
Rok vydání: 2012
Předmět:
Zdroj: European journal of cancer (Oxford, England : 1990). 49(11)
ISSN: 1879-0852
Popis: Patients with human papillomavirus (HPV) positive tonsillar and base of tongue squamous cell carcinoma (TSCC and BOTSCC, respectively) have a better clinical outcome than those with HPV negative tumours, irrespective of treatment. However, to better individualise treatment, additional biomarkers are needed together with HPV status. In a pilot study, we showed that high numbers of CD8(+) tumour infiltrating lymphocytes (TILs) in HPVDNA+ p16(INK4a+) TSCC indicated a better outcome. Here this study was extended. Totally 203 TSCC and 77 BOTSCC formalin fixed paraffin embedded tumour biopsies, earlier tested for HPV DNA (79% HPVDNA+) and p16(INK4a) from patients treated with curative intention, were analysed for CD8(+) and CD4(+) TILs by immunohistochemistry. Data obtained for 275 patients were correlated to HPVDNA and p16(INK4a) status, overall survival (OS) and disease free survival (DFS). In both HPVDNA+ and HPVDNA+ p16(INK4a+) tumours higher CD8(+) TIL counts correlated to a better 3-year OS (logrank test, both p
Databáze: OpenAIRE