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Clinical usefulness of serum telomerase reverse transcriptase (hTERT) mRNA and epidermal growth factor receptor (EGFR) mRNA as a novel tumor marker for lung cancer
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Clinical usefulness of serum telomerase reverse transcriptase (hTERT) mRNA and epidermal growth factor receptor (EGFR) mRNA as a novel tumor marker for lung cancer
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Clinical usefulness of serum telomerase reverse transcriptase (hTERT) mRNA and epidermal growth factor receptor (EGFR) mRNA as a novel tumor marker for lung cancer
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Journal Article
Clinical usefulness of serum telomerase reverse transcriptase (hTERT) mRNA and epidermal growth factor receptor (EGFR) mRNA as a novel tumor marker for lung cancer
2006
Overview
Using a newly developed assay of telomerase reverse transcriptase (hTERT) mRNA in serum by real‐time RT‐PCR, we previously reported this assay to be superior to other tumor markers for hepatoma. In this study, we aimed to clarify its clinical significance as a biomarker for lung cancer. In 112 patients with lung tumor and 80 individuals without cancer, we measured serum hTERT mRNA and epidermal growth factor receptor (EGFR) mRNA levels, using a quantitative one‐step real‐time RT‐PCR assay. We examined its sensitivity and specificity in lung cancer diagnosis, its clinical significance in comparison with other tumor markers, and its correlation with the clinical parameters using multivariate analyses and correlation relative tests. The copy number of serum hTERT mRNA was independently correlated with tumor size, tumor number, presence of metastasis and recurrence, and smoking (all P < 0.05). EGFR mRNA correlated with tumor number and clinical stage (both P < 0.05). The sensitivity and specificity in lung cancer diagnosis were 89.0% and 72.7% for hTERT mRNA, and 71.3% and 80.0% for EGFR mRNA, respectively. hTERT mRNA was superior to other tumor markers in lung cancer diagnosis. For both mRNAs, serum levels were significantly correlated with levels in lung cancer tissues (both P < 0.05). The copy number of hTERT mRNA significantly decreased after the surgical treatment. The data suggest that hTERT mRNA, especially when combined with EGFR mRNA, is a novel and excellent biomarker for pulmonary malignancies to diagnose and assess the clinical stage. (Cancer Sci 2006; 97: 1366–1373)
Publisher
Blackwell Publishing Asia,Blackwell
Subject
/ Adult
/ Aged
/ Biological and medical sciences
/ Biomarkers, Tumor - genetics
/ Biomarkers, Tumor - metabolism
/ Carcinoma, Large Cell - genetics
/ Carcinoma, Large Cell - metabolism
/ Carcinoma, Large Cell - secondary
/ Carcinoma, Non-Small-Cell Lung - genetics
/ Carcinoma, Non-Small-Cell Lung - metabolism
/ Carcinoma, Non-Small-Cell Lung - secondary
/ Carcinoma, Small Cell - genetics
/ Carcinoma, Small Cell - metabolism
/ Carcinoma, Small Cell - secondary
/ Carcinoma, Squamous Cell - genetics
/ Carcinoma, Squamous Cell - metabolism
/ Carcinoma, Squamous Cell - secondary
/ Female
/ Gene Expression Regulation, Neoplastic
/ Humans
/ Male
/ Neoplasm Recurrence, Local - diagnosis
/ Neoplastic Cells, Circulating
/ Original
/ Reverse Transcriptase Polymerase Chain Reaction
/ Tumors
