Xiao He,Wang Ge,Wang Dong,Yang Zhenzhou,Yang Yuxin.Relationship between plasma EGFR mutation and serum levels of tumor markers in non-small cell lung cancer[J].J Amry Med Univ (J Third Mil Med Univ),2013,35(14):1520-1523.
Xiao He,Wang Ge,Wang Dong,Yang Zhenzhou,Yang Yuxin.Relationship between plasma EGFR mutation and serum levels of tumor markers in non-small cell lung cancer[J].J Amry Med Univ (J Third Mil Med Univ),2013,35(14):1520-1523.DOI:
Objective To investigate the relationship of epidermal growth factor receptor (EGFR) mutation in plasma free DNA with clinical characteristics of baseline as well as serum expression levels of tumor markers in patients with advanced non-small cell lung cancer (NSCLC). Methods One hundred and sixty-six patients with pathologically confirmed NSCLC hospitalized in our department from June 2011 to June 2012 were enrolled in this study. Their clinical data and peripheral blood samples were collected. PCR and denaturing hi
gh-performance liquid chromatography (DHPLC) were performed to detect EGFR mutations in exons 19 and 21 in the free DNA from the 166 samples of peripheral blood. The serum levels of 12 tumor makers
such as carcinoembryonic antigen (CEA)
carbohydrate antigen (CA) 125
CA153 and so on
were analyzed with multi-tumor markers protein biochip detective system in 89 patients simultaneously. The relationships of EGFR mutation with the patients’ clinical characteristics at baseline and with corresponding serum levels of tumor makers were analyzed. Results The total mutation rate of EGFR was 19.9% in 166 NSCLC patients
with that in females significantly higher than that in males (
P
=0.037). Though the rate was higher in adenocarcinoma than the other histological types
no significant difference was seen among them (
P
=0.096). The mutation rate was significantly higher in the patients with moderate and high serum levels of CEA and CA153 than those with mild expression levels (
P
=0.048
P
=0.017). However
the rate was also high in those with high expression of CA199 than those with moderate and mild expression though without significant difference (
P
=0.093). Multivariable Logistic regression showed that adenocarcinoma
and moderate and high expression of CEA and CA153 were significantly correlated with EGFR mutation. Conclusion The mutation rate of EGFR is significantly related with the serum levels of tumor markers in late NSCLC
and the serum levels can be a potential indicator to determine the EGFR mutation.