ArticleGenes and environment : the official journal of the Japanese Environmental Mutagen Society2022
Unique characteristics of G719X and S768I compound double mutations of epidermal growth factor receptor (EGFR) gene in lung cancer of coal-producing areas of East Yunnan in Southwestern China.
Article in Genes and environment : the official journal of the Japanese Environmental Mutagen Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 16 citations in OpenAlex.
- EGFR G719X + S768I co-mutations in NSCLC: genomic landscape and differential responses to EGFR-TKIs in a large real-world cohort.BMC cancer · 2026Article
- Application of pleural effusion cell blocks for immunohistochemistry and EGFR gene mutation testing for advanced lung cancer.Experimental and therapeutic medicine · 2026Article
- The spectrum of TP53 mutations in Rwandan patients with gastric cancer.Genes and environment : the official journal of the Japanese Environmental Mutagen Society · 2024Article
- Exploring the conformational dynamics and thermodynamics ofOpen life sciences · 2023Article
- Concurrent TP53 Mutations Facilitate Resistance Evolution in EGFR Exon 20 S768I Mutant Lung Adenocarcinoma: A Case Report and Review of the Literature.Case reports in oncologyArticle
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Authors and funding
13 authors at 1 institution in 1 country.
Funding
Abstract
backgroundThe principal objective of this project was to investigate the Epidermal Growth Factor Receptor (EGFR) gene mutation characteristics of lung cancer patients, which can provide a molecular basis for explaining the clinicopathological features, epidemiology and use of targeted therapy in lung cancer patients in the coal-producing areas of East Yunnan. METHODOLOGY: We collected 864 pathologically confirmed lung cancer patients' specimens in First People's Hospital of Qujing City of Yunnan Province from September 2016 to September 2021. We thereafter employed Next Generation Sequencing (NGS) technology to detect all exons present in the EGFR gene.
resultsThe overall mutation frequency of the EGFR gene was 47.22%. The frequency of EGFR gene mutations in the tissue, plasma, and cytology samples were found to be 53.40%, 23.33%, and 62.50%, respectively. Univariate analysis indicated that the coal-producing areas and Fuyuan county origin were significantly associated with relatively low EGFR gene mutation frequency. Female, non-smoking history, adenocarcinoma, non-brain metastasis, and tissue specimens were found to be related to high EGFR gene mutation frequency. Multivariate logistic regression analysis suggested the lung cancer patients in the central area of Qujing City, stage Ia, non-coal-producing areas, non-Fuyuan origin, and non-Xuanwei origin were more likely to develop EGFR gene mutations. The most common mutations were L858R point mutation (33.09%) and exon 19 deletion (19-del) (21.32%). Interestingly, the mutation frequency of G719X (p = 0.001) and G719X + S768I (p = 0.000) in the coal-producing areas were noted to be more significant than those in non-coal-producing regions.
conclusionThis findings of this study might be important in establishing the correlation between routine using NGS for EGFR gene mutation diagnosis and clinical practice in the lung cancer patients.
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