Tumour-infiltrating lymphocyte scores effectively stratify outcomes over and above p16 post chemo-radiotherapy in anal cancer

Duncan C. Gilbert*, Eva Serup-Hansen, Dorte Linnemann, Estrid Høgdall, Charles Bailey, Jeff Summers, Hanne Havsteen, Gareth J. Thomas

*Corresponding author for this work
43 Citations (Scopus)

Abstract

Background: The majority (90%) of anal cancers are human papillomavirus (HPV)-driven, identified using immunochemistry for p16. Compared with HPV- patients, those with HPV+ disease generally show improved survival, although relapse rates around 25% indicate a need for further stratification of this group.

Methods: Using two cohorts of anal cancer, previously characterised for p16, we assessed the prognostic value of tumour-infiltrating lymphocytes (TILs).

Results: Tumour-infiltrating lymphocyte scores were used to stratify p16+ cases, where tumours with absent/low levels of TIL had a relapse-free rate of 63%, as opposed to 92% with high levels of TIL (log rank P=0.006).

Conclusions: Assessment of TIL adds to p16 status in the prognosis of anal cancer following chemo-radiotherapy and provides evidence of the clinical importance of the immune response.

Original languageEnglish
JournalBritish Journal of Cancer
Volume114
Pages (from-to)134-137
Number of pages4
ISSN0007-0920
DOIs
Publication statusPublished - 2016

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