Keap1 mutations in lung cancer patients

Sasaki,Hidefumi; Suzuki,Ayumi; Shitara,Masayuki; Okuda,Katsuhiro; Hikosaka,Yu; Moriyama,Satoru; Yano,Motoki; Fujii,Yoshitaka

doi:10.3892/ol.2013.1427

September 2013 Volume 6 Issue 3

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September 2013 Volume 6 Issue 3

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Article

Keap1 mutations in lung cancer patients

Authors:
- Hidefumi Sasaki
- Ayumi Suzuki
- Masayuki Shitara
- Katsuhiro Okuda
- Yu Hikosaka
- Satoru Moriyama
- Motoki Yano
- Yoshitaka Fujii
View Affiliations / Copyright

Affiliations: Department of Oncology, Immunology and Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467‑8601, Japan
Pages: 719-721
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Published online on: June 26, 2013

https://doi.org/10.3892/ol.2013.1427
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Abstract

Kelch‑like ECH‑associated protein 1 (Keap1) inhibits nuclear factor erythroid 2‑related 2 (NEF2L2; also named NRF2)‑induced cytoprotection and has been hypothesized to represent a candidate tumor suppressor. We have previously reported the somatic mutations of the NRF2 gene (NFE2L2), however, the correlation between the Keap1 mutation and the clinicopathological features of lung cancer has not been well investigated. Therefore, in the present study, the Keap1 mutational status in non‑small cell lung cancer (NSCLC) patients was investigated by reverse transcription PCR and direct sequencing. The study included 76 surgically‑removed lung cancer cases from patients of the Nagoya City University Hospital in which the EGFR and NFE2L2 mutation status was already established. Keap1 mutations were identified in 2 (2.6%) adenocarcinoma patients with a history of heavy smoking. These mutations were identified to exist exclusively. The Keap1 mutation was only detected in patients with advanced adenocarcinoma (4.3%) and the completely exclusive status of this mutation and others, including EGFR, Kas, erbB2 and NRF2L2, is likely to improve the selection of personalized therapy for lung cancer.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Keap1 mutations in lung cancer patients

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Abstract

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