Correlation between histological subtypes of invasive lung adenocarcinoma and epithelial growth factor receptor (EGFR) gene mutation
- VernacularTitle:浸润性肺腺癌组织学亚型与表皮生长因子受体（EGFR）基因突变的相关性
- Author:
Likun WANG
1
;
Xuan ZHOU
1
;
Tianyu DU
1
;
Erlin ZHAO
1
;
Xuyang XIAO
1
Author Information
1. Department of Thoracic Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121000, Liaoning, P.R.China
- Publication Type:Journal Article
- Keywords:
Lung adenocarcinoma;
histological subtype;
epithelial growth factor receptor;
gene mutation;
treatment
- From:
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery
2020;27(07):780-783
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the correlation between histological subtypes of invasive lung adenocarcinoma and epithelial growth factor receptor (EGFR) gene mutation, and to provide a reference for clinical prediction of EGFR gene mutation status. Methods From October 2017 to May 2019, 102 patients with invasive lung adenocarcinoma were collected, including 58 males and 44 females aged 62 (31-84) years. Invasive lung adenocarcinoma was classified into different histological subtypes. Scorpion probe amplification block mutation system (ARMS) real-time PCR was used to detect the mutation of EGFR gene in adenocarcinoma specimens, and the relationship between invasive lung adenocarcinoma subtypes and EGFR mutation status was analyzed. Results In 102 patients with invasive lung adenocarcinoma, EGFR gene mutations were detected in 68 patients, and the mutation rate was 66.7% (68/102). The mutation sites were mainly concentrated in the exons 19 and 21; the mutation rate was higher in female patients (34/44, 77.3%) and non-smokers (34/58, 58.6%). EGFR mutation was mostly caused by acinar-like invasive lung adenocarcinoma, and was rare in solid-type lung adenocarcinoma. The EGFR gene mutation rates in different subtypes of adenocarcinoma were statistically different (P<0.05). Conclusion The EGFR mutation status is related to gender, smoking status and histological subtype of invasive lung adenocarcinoma. EGFR mutation rates are higher in female, non-smoking and acinar-like invasive lung adenocarcinoma patients, and are lower in patients with solid type lung adenocarcinoma.
