期刊
BRITISH JOURNAL OF CANCER
卷 116, 期 11, 页码 1444-1450出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/bjc.2017.108
关键词
colorectal cancer; tumour microenvironment; inflammation; prognosis; staging
类别
Background: The present study aimed to examine the relationship between tumour invasiveness (T stage), the local and systemic environment and cancer-specific survival (CSS) of patients with primary operable colorectal cancer. Methods: The tumour microenvironment was examined using measures of the inflammatory infiltrate (Klintrup-Makinen (KM) grade and Immunoscore), tumour stroma percentage (TSP) and tumour budding. The systemic inflammatory environment was examined using modified Glasgow Prognostic Score (mGPS) and neutrophil: lymphocyte ratio (NLR). A 5-year CSS was examined. Results: A total of 331 patients were included. Increasing T stage was associated with colonic primary, N stage, poor differentiation, margin involvement and venous invasion (P < 0.05). T stage was significantly associated with KM grade (P = 0.001), Immunoscore (P = 0.016), TSP (P = 0.006), tumour budding (P < 0.001), and elevated mGPS and NLR (both P < 0.05). In patients with T3 cancer, N stage stratified survival from 88 to 64%, whereas Immunoscore and budding stratified survival from 100 to 70% and from 91 to 56%, respectively. The Glasgow Microenvironment Score, a score based on KM grade and TSP, stratified survival from 93 to 58%. Conclusions: Although associated with increasing T stage, local and systemic tumour environment characteristics, and in particular Immunoscore, budding, TSP and mGPS, are stage-independent determinants of survival and may be utilised in the staging of patients with primary operable colorectal cancer.
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