单中心非小细胞肺癌患者KRAS基因突变分析

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Abstract Objective To analyze the mutation of KRAS gene in patients with single-center non-small cell lung cancer (NSCLC). Methods Tumor tissue or peripheral blood samples were collected from 210 NSCLC patients diagnosed by pathology in Guangdong Nongken Central Hospital from December 2016 to October 2020. High-throughput sequencing technology was used to detect the mutation rate of KRAS gene exon, the distribution characteristics of mutation sites and the correlation with patient characteristics. Results KRAS mutations rate of 210 NSCLC patients was 13.8% (29 cases). Among these KRAS-mutated cases, codon 12 mutation was observed in 58.6% (17/29), codon G13 mutation in 10.3% (3/29), Q61 mutation in 27.6% (8/29) individuals. Most (24.1%, 7/29) of the cases with Q61 mutations were Q61L. KRAS mutations were associated with the gender (P ＜ 0.05), but had no correlation with smoking history and sample types (P ＞ 0.05). Smoking history was correlated with codons G12/13 mutations (P ＜ 0.05), but had no correlation with Q61L mutation (P ＞ 0.05). KRAS mutations were associated with the gender either in tissue samples or in plasma samples (P ＜ 0.05), but had no correlation with smoking history (P ＞ 0.05). Conclusion The mutation frequency of KRAS in NSCLC patients is similar to the frequency reported in East Asian, but the frequency of KRAS codon Q61L mutation is significantly higher than that reported in the literature, suggesting that KRAS Q61L may be an important driver mutation in NSCLC patients from the single center in the current study.

Key words： Non-small cell lung cancer KRAS Q61L mutation Smoking history

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	LI Yuanyuan1 XIANG Tianmin2 CHEN Sixian1 CHEN Yongfeng1 ZHOU Suli1 LU Wei1 ZHANG Zhenzhen2 CAI Yongguang1

Cite this article:

LI Yuanyuan1 XIANG Tianmin2 CHEN Sixian1 CHEN Yongfeng1 ZHOU Suli1 LU Wei1 ZHANG Zhenzhen2 CAI Yongguang1. Analysis of KRAS mutation in patients with a single-center non-small cell lung cancer[J]. 中国医药导报, 2021, 18(16): 34-37,45.

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https://www.yiyaodaobao.com.cn/EN/ OR https://www.yiyaodaobao.com.cn/EN/Y2021/V18/I16/34

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