期刊
HEAD AND NECK-JOURNAL FOR THE SCIENCES AND SPECIALTIES OF THE HEAD AND NECK
卷 37, 期 3, 页码 449-459出版社
WILEY
DOI: 10.1002/hed.23736
关键词
microenvironment; prognosis; cancer; head; neck
BackgroundThe tumour microenvironment is a highly complex region where multiple interactions occur between host and cancer cells. The host response is defined by the presence and function of different tumour infiltrating lymphocytes and cytokines. Head and neck squamous cell carcinomas comprise a subgroup of human cancers with significant morbidity and mortality. MethodA literature review was performed to identify studies, which have investigated the impact of immune factors within the tumour microenvironment of head and neck squamous cell carcinomas on clinical outcomes. ResultsHigher counts of intratumoral dendritic cells and CD8+ T-lymphocytes are associated with a favorable prognosis in head and neck cancers. However, contrasting results have been found with T-regulatory cells whereby higher intratumoral counts appear favorable particularly in tumours of oropharyngeal origin. A number of studies have found a link between various biomarkers, e.g. IL-10 in oral cancers, and clinical outcome. ConclusionsWe have identified immune factors within the tumour microenvironment, which are critically related to prognosis and also those, which require further work to elucidate their full relevance. Furthermore it is clear that if immunotherapy is to be introduced as an adjunct in the treatment of head and neck cancers, different immunological parameters will need to be selected for each distinct subsite. 2014 Wiley Periodicals, Inc. Head Neck 37: 449-459, 2015
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