Abstract:
:The aim of this study was to determine the prognostic significance of soluble human leukocyte antigen (HLA) class I (sHLA-I) and HLA-G molecules in lung cancer patients. A total of 23 small-cell lung cancer (SCLC) and 114 non-small-cell lung cancer (NSCLC) patients, including 55 adenocarcinoma, 46 squamous cell carcinoma (SCC), and 13 patients with undifferentiated carcinoma, were prospectively enrolled. Levels of sHLA-G and sHLA-I were analyzed by specific enzyme-linked immunosorbent assay. Median levels of sHLA-G and sHLA-I were significantly increased in patients compared with controls (34 ng/ml [3.6-160] vs 14 ng/ml [0-98], p < 0.0001; 2580 ng/ml [749-5770] vs 1370 ng/ml [274-2670], p < 0.0001, respectively). Regarding the different subgroups, patients with NSCLC or SCLC showed increased sHLA-I levels, whereas sHLA-G was exclusively elevated in NSCLC, especially in patients with SCC. Patients with sHLA-I<2800 ng/ml (p = 0.008) or sHLA-G<40 ng/ml (p = 0.073) showed prolonged overall survival (OS). Using these cut-offs in patients with SCC, a pronounced prognostic significance for sHLA-G (p = 0.003) and sHLA-I (p = 0.004) was observed for the prediction of OS. Here, multivariate analysis confirmed sHLA-G and sHLA-I in addition to disease stage as independent prognostic factors. The prognostic power was further enhanced by combining the two factors and comparing the OS of patients with low sHLA-I and low sHLA-G against the remaining ones. In conclusion, plasma levels of sHLA-G and sHLA-I are potent predictors for OS in lung cancer patients.
journal_name
Hum Immunoljournal_title
Human immunologyauthors
Schütt P,Schütt B,Switala M,Bauer S,Stamatis G,Opalka B,Eberhardt W,Schuler M,Horn PA,Rebmann Vdoi
10.1016/j.humimm.2010.02.015subject
Has Abstractpub_date
2010-05-01 00:00:00pages
489-95issue
5eissn
0198-8859issn
1879-1166pii
S0198-8859(10)00058-3journal_volume
71pub_type
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