期刊
INTERNATIONAL JOURNAL OF CANCER
卷 136, 期 11, 页码 2515-2523出版社
WILEY
DOI: 10.1002/ijc.29108
关键词
circulating tumour cells; head and neck squamous cell carcinoma; Head and neck cancer; epithelial-mesenchymal transition; microemboli; circulating tumour cells
类别
资金
- Queensland Government Smart Futures Co-investment Funding Scheme (under the Queensland Centre for Head and Neck Cancer)
- University of Queensland Foundation Research Excellence Scheme
- University of Queensland Diamantina Institute Internal Strategic Funds
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer with 650,000 new cases p/a worldwide. HNSCC causes high morbidity with a 5-year survival rate of less than 60%, which has not improved due to the lack of early detection (Bozec et al. Eur Arch Otorhinolaryngol. 2013;270: 2745-9). Metastatic disease remains one of the leading causes of death in HNSCC patients. This review article provides a comprehensive overview of literature over the past 5 years on the detection of circulating tumour cells (CTCs) in HNSCC; CTC biology and future perspectives. CTCs are a hallmark of invasive cancer cells and key to metastasis. CTCs can be used as surrogate markers of overall survival and progression-free survival. CTCs are currently used as prognostic factors for breast, prostate and colorectal cancers using the CellSearch (R) system. CTCs have been detected in HNSCC, however, these numbers depend on the technique applied, time of blood collection and the clinical stage of the patient. The impact of CTCs in HNSCC is not well understood, and thus, not in routine clinical practice. Validated detection technologies that are able to capture CTCs undergoing epithelial-mesenchymal transition are needed. This will aid in the capture of heterogeneous CTCs, which can be compiled as new targets for the current food and drug administration-cleared CellSearch (R) system. Recent studies on CTCs in HNSCC with the CellSearch (R) have shown variable data. Therefore, there is an immediate need for large clinical trials encompassing a suite of biomarkers capturing CTCs in HNSCC, before CTCs can be used as prognostic markers in HNSCC patient management.
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