Plasma levels of soluble programmed death ligand 1 (sPD-L1) in WHO II/III nasopharyngeal carcinoma (NPC): A preliminary study. Issue 39 (September 2019)

• Record Type: Journal Article
• Authors: Yang, Jia; Hu, Man; Bai, Xinbin; Ding, Xingchen; Xie, Li; Ma, Ji; Fan, Bingjie; Yu, Jinming
• Other Names: Bush. Eric section editor.
• Is Part Of: Medicine. Volume 98:Issue 39(2019)
• Publication Date: 2019-09
• Subjects: enzyme-linked immunosorbent assay -- nasopharyngeal carcinoma -- soluble programmed death ligand 1; Medicine -- Periodicals; Medicine -- Periodicals; Médecine -- Périodiques; Geneeskunde; Medicine; Periodicals; Periodicals; 610.5
• DOI: 10.1097/MD.0000000000017231
• Languages: English
• ISSNs: 0025-7974

Abstract

Abstract : Abstract: Plasma levels of soluble PD-L1 (sPD-L1) have been reported to be an independent prognostic factor in many malignant tumors. The expression of sPD-L1 in nasopharyngeal carcinoma (NPC) has not been reported. The purpose of this study was to evaluate the expression of sPD-L1 and analyze its correlation with clinical characteristics in patients with NPC. Thirty-five patients with stage I-IVa NPC were included. Plasma samples were obtained pretreatment. The sPD-L1 concentrations were measured by enzyme-linked immunosorbent assay (ELISA). The correlations of sPD-L1 expression with clinical parameters and laboratory data were analyzed. sPD-L1 was detected in 35 plasma samples, the mean sPD-L1 concentration was 45.47 pg/ml. sPD-L1 was significantly higher in stage III-IVa (50.76 ± 28.15 pg/ml) compared to stage I-II (19.87 ± 11.38 pg/ml) ( t = 2.618, P = .013). sPD-L1 was also higher in stage N2–3 (52.03 ± 28.98 pg/ml) than that in N0–1 (32.88 ± 23.75 pg/ml) ( t = 2.096, P = .046). Univariate analysis identified that sPD-L1 level positively correlated with clinical stage ( r = 0.495, P = .002) and N stage ( r = 0.34, P = .046). Multivariate analysis showed the clinical stage was an independent factor affecting sPD-L1 expression. This is the first report to detect sPD-L1 in NPC. The study indicated sPD-L1 is quantifiable, convenient and easy to obtain. sPD-L1 may serve as a useful biomarker for evaluating tumor progression and therapeutic efficacy of NPC.