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Article

Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma

  • Authors:
    • Yuan Qu
    • Di Wang
    • Lin Yang
    • Hui‑Ying Liu
    • Wei Cui
    • Yi‑Qun Che
  • View Affiliations / Copyright

    Affiliations: Department of Radiation Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P.R. China, Department of Clinical Laboratory, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P.R. China, Department of Pathology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P.R. China, Department of Clinical Laboratory, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122, P.R. China
  • Pages: 75-81
    |
    Published online on: May 21, 2018
       https://doi.org/10.3892/mco.2018.1633
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Abstract

Nasopharyngeal carcinoma (NPC) has the highest incidence of all types of head and neck cancer in China. The present study aimed to investigate the association between the expression of programmed death ligand 1 (PD‑L1) in NPC tissues and clinicopathological features, as well the outcomes for NPC patients. In addition, the association between tissue expression of PD‑L1 and immune components in peripheral blood was assessed. The expression of PD‑L1 was determined by immunohistochemistry, while immune indexes were determined by ELISA and flow cytometry. The positive expression rate of PD‑L1 in NPC patients was 29.2%, and the PD‑L1 expression levels were associated with distant metastasis (P=0.010) and the T‑stage of the primary tumor (P=0.032). The expression of PD‑L1 was associated with the distant metastasis‑free survival of NPC patients (P=0.006). In addition, a statistically significant association of PD‑L1 expression with Epstein‑Barr virus viral capsid antigen IgA (EBV VCA‑IgA; P=0.046) and with CD3‑CD19+ cells (P=0.014) was identified. These results indicated that PD‑L1 may be a potential prognostic biomarker for NPC patients, and that EBV VCA‑IgA and CD3‑CD19+ cells may be useful for predicting PD‑L1 expression when its levels cannot be detected due to the lack of a tumor tissue sample.
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Copy and paste a formatted citation
Spandidos Publications style
Qu Y, Wang D, Yang L, Liu HY, Cui W and Che YQ: Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma. Mol Clin Oncol 9: 75-81, 2018.
APA
Qu, Y., Wang, D., Yang, L., Liu, H., Cui, W., & Che, Y. (2018). Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma. Molecular and Clinical Oncology, 9, 75-81. https://doi.org/10.3892/mco.2018.1633
MLA
Qu, Y., Wang, D., Yang, L., Liu, H., Cui, W., Che, Y."Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma". Molecular and Clinical Oncology 9.1 (2018): 75-81.
Chicago
Qu, Y., Wang, D., Yang, L., Liu, H., Cui, W., Che, Y."Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma". Molecular and Clinical Oncology 9, no. 1 (2018): 75-81. https://doi.org/10.3892/mco.2018.1633
Copy and paste a formatted citation
x
Spandidos Publications style
Qu Y, Wang D, Yang L, Liu HY, Cui W and Che YQ: Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma. Mol Clin Oncol 9: 75-81, 2018.
APA
Qu, Y., Wang, D., Yang, L., Liu, H., Cui, W., & Che, Y. (2018). Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma. Molecular and Clinical Oncology, 9, 75-81. https://doi.org/10.3892/mco.2018.1633
MLA
Qu, Y., Wang, D., Yang, L., Liu, H., Cui, W., Che, Y."Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma". Molecular and Clinical Oncology 9.1 (2018): 75-81.
Chicago
Qu, Y., Wang, D., Yang, L., Liu, H., Cui, W., Che, Y."Expression and clinical significance of programmed death ligand 1 in nasopharyngeal carcinoma". Molecular and Clinical Oncology 9, no. 1 (2018): 75-81. https://doi.org/10.3892/mco.2018.1633
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