Abstract
Background: Levels of circulating hybrid cells (CHCs), a newly identified circulating tumor cell (CTC), correlate with disease stage and progression in cancer. We investigated their utility to risk-stratify patients with clinically N0 (cN0) oral cavity squamous cell carcinoma (OCSCC), and to identify patients with occult cervical lymph node metastases (pN+). Methods: We analyzed peripheral blood samples for CHCs with co-expression of cytokeratin (tumor) and CD45 (leukocyte) from 22 patients with cN0 OCSCC using immunofluorescence microscopy, then correlated levels with pathologic lymph node status. Results: CHC levels exceeded CTCs and correlated with the presence of both clinically overt (p = 0.002) and occult nodal metastases (p = 0.006). Conclusions: For evaluated cN0 OCSCC patients, those with cN0 → pN+ status harbored elevated CHC levels compared to patients without occult disease. Our findings highlight a promising blood-based biologic assay with potential utility to determine the necessity of surgical neck dissection for staging and treatment.
Original language | English (US) |
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Pages (from-to) | 2193-2201 |
Number of pages | 9 |
Journal | Head and Neck |
Volume | 43 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2021 |
Keywords
- blood-based analyte
- head and neck cancer
- occult metastases
- oral pharyngeal squamous cell carcinoma
- prognostic analyte
ASJC Scopus subject areas
- Otorhinolaryngology