Abstract
Objectives: To evaluate the diagnostic values of autoantibodies against lymphocyte antigen 6 complex locus K (LY6K) in esophageal squamous cell carcinoma (ESCC). Methods: After cloning, expressing, and purifying LY6K as fusion proteins, LY6K autoantibodies were measured in 62 patient and 58 control serum samples using enzyme-linked immunosorbent assay (ELISA). Reverse transcription polymerase chain reaction (RT-PCR) was used to measure the LY6K mRNA levels in ESCC and adjacent tissues. Results: LY6K autoantibodies were found significantly higher in patients than controls. The area under the receiver-operating characteristic (ROC) curve (AUC) was 0.85, and the optimal sensitivity and specificity for ESCC detection were 80.6 and 78.7%, respectively. LY6K mRNA expressions in patients were upregulated. Conclusions: Autoantibodies against LY6K may be a good diagnostic biomarker for ESCC.
Original language | English (US) |
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Pages (from-to) | 372-378 |
Number of pages | 7 |
Journal | Biomarkers |
Volume | 17 |
Issue number | 4 |
DOIs | |
State | Published - Jun 2012 |
Keywords
- Gastric cancer
- Gene expression
- Proteomics
ASJC Scopus subject areas
- Biochemistry
- Clinical Biochemistry
- Health, Toxicology and Mutagenesis