The prognostic roles of pretreatment circulating tumor cells, circulating cancer stem-like cells, and programmed cell death-1 expression on peripheral lymphocytes in patients with initially unresectable, recurrent or metastatic head and neck cancer: An exploratory study of three biomarkers in one-time blood drawing

Pei Hung Chang*, Min Hsien Wu, Sen Yu Liu, Hung Ming Wang, Wen Kuan Huang, Chun Ta Liao, Tzu Chen Yen, Shu Hang Ng, Jen Shi Chen, Yung Chang Lin, Hung Chih Lin, Jason Chia Hsun Hsieh

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

13 Scopus citations

Abstract

Circulating tumor cells (CTCs) and immune status are strongly related to cancer prognosis, although few studies have examined both factors. This prospective observational study (ClinicalTrials.gov: NCT02420600) evaluated whether CTCs, circulating cancer stem-like cells (cCSCs), and peripheral lymphocytes with/without Programmed cell death protein 1 (PD-1) expression were associated with prognosis among patients receiving palliative chemotherapy for initially unresectable, recurrent/metastatic head and neck squamous cell carcinoma (rmHNSCC). Thirty-four patients were enrolled between January 2015 and June 2016. Overall survival (OS) was associated with a higher CTC number (hazard ratio [HR]: 1.01, p = 0.0004) and cCSC ratio (HR: 29.903, p < 0.0001). Progression-free survival (PFS) was also associated with CTC number (HR: 1.013, p = 0.002) and cCSC ratio (HR: 10.92 p = 0.003). A CD8+ proportion of _ 17% was associated with improved OS (HR: 0.242, p = 0.004). A CD4: CD8 ratio of >1.2 was associated with poorer trend of PFS (HR: 2.12, p = 0.064). PD-1 expression was not associated with survival outcomes. Baseline CTCs, cCSC ratio, and CD8+ ratio may predict prognosis in rmHNSCC.

Original languageEnglish
Article number540
JournalCancers
Volume11
Issue number4
DOIs
StatePublished - 04 2019

Bibliographical note

Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Cancer stem-like cells
  • Circulating tumor cells
  • Head and neck cancer
  • PD-1
  • Peripheral lymphocytes

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