Open Access

Next‑generation sequencing‑based identification of EGFR and NOTCH2 complementary mutations in non‑small cell lung cancer

  • Authors:
    • Lin Niu
    • Chunyan Dang
    • Lin Li
    • Na Guo
    • Ying Xu
    • Xiangling  Li
    • Qian Xu
    • Luyang Cheng
    • Li Zhang
    • Lei Liu
  • View Affiliations

  • Published online on: June 7, 2021     https://doi.org/10.3892/ol.2021.12855
  • Article Number: 594
  • Copyright: © Niu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Although targeted therapy has emerged as an effective treatment strategy for non‑small cell lung cancer (NSCLC), some patients cannot benefit from such therapy due to the limited number of therapeutic targets. The present study aimed to identify mutated genes associated with clinicopathological characteristics and prognosis and to screen for mutations that are not concurrent with applicable drug target sites in patients with NSCLC. Tumor tissue and blood samples were obtained from 97 patients with NSCLC. A lung cancer‑specific panel of 55 genes was established and analyzed using next‑generation sequencing (NGS). The results obtained from the clinical cohort were compared with the NSCLC dataset from The Cancer Genome Atlas (TCGA). Subsequently, 25 driver genes were identified by taking the intersection of the 55 lung‑cancer‑specific genes with three databases, namely, the Catalog of Somatic Mutations in Cancer database, the Network of Cancer Genes database and Vogelstein's list. Functional annotation and protein‑protein interaction analysis were conducted on these 25 driver genes. The χ2 test and logistic regression were used to evaluate the association between mutations in the 25 driver genes and the clinicopathological characteristics of 97 patients, and phosphatase and tensin homolog (PTEN) and kirsten rat sarcoma viral oncogene homolog (KRAS) were associated with stage at diagnosis and sex, respectively, while epidermal growth factor receptor (EGFR) was associated with sex, stage at diagnosis, metastasis, CEA and CYFRA21‑1. Moreover, the association between the 25 driver gene mutations and overall survival were examined using Cox regression analysis. Age and Notch homolog 2 (NOTCH2) mutations were independent prognostic factors in TCGA dataset. The correlations between statistically significant mutations in EGFR, KRAS, PTEN and NOTCH2 were further examined, both in the clinical data and TCGA dataset. There was a negative correlation between EGFR and NOTCH2 mutations (correlation coefficient, ‑0.078; P=0.027). Thus, the present study highlights the importance of NOTCH2 mutations and might provide novel therapeutic options for patients with NSCLC who do not harbor EGFR mutations.
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August-2021
Volume 22 Issue 2

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Online ISSN:1792-1082

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Copy and paste a formatted citation
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Spandidos Publications style
Niu L, Dang C, Li L, Guo N, Xu Y, Li X, Xu Q, Cheng L, Zhang L, Liu L, Liu L, et al: Next‑generation sequencing‑based identification of EGFR and NOTCH2 complementary mutations in non‑small cell lung cancer. Oncol Lett 22: 594, 2021.
APA
Niu, L., Dang, C., Li, L., Guo, N., Xu, Y., Li, X. ... Liu, L. (2021). Next‑generation sequencing‑based identification of EGFR and NOTCH2 complementary mutations in non‑small cell lung cancer. Oncology Letters, 22, 594. https://doi.org/10.3892/ol.2021.12855
MLA
Niu, L., Dang, C., Li, L., Guo, N., Xu, Y., Li, X., Xu, Q., Cheng, L., Zhang, L., Liu, L."Next‑generation sequencing‑based identification of EGFR and NOTCH2 complementary mutations in non‑small cell lung cancer". Oncology Letters 22.2 (2021): 594.
Chicago
Niu, L., Dang, C., Li, L., Guo, N., Xu, Y., Li, X., Xu, Q., Cheng, L., Zhang, L., Liu, L."Next‑generation sequencing‑based identification of EGFR and NOTCH2 complementary mutations in non‑small cell lung cancer". Oncology Letters 22, no. 2 (2021): 594. https://doi.org/10.3892/ol.2021.12855