K-RAS Gene Mutations in Patients with Non-small Cell Lung Cancer

Background and objective Recent studies indicated that Non-small cell lung cancer (NSCLC) patients with mutant K-RAS failed to benefit from adjuvant chemotherapy, and the cancer did not respond to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs). These findings indicated tha...

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Main Authors: Yang ZHANG, Zhenkui PAN, Xing ZHANG, Fei XU, Li ZHANG
Format: Article
Language:zho
Published: Chinese Anti-Cancer Association; Chinese Antituberculosis Association 2010-06-01
Series:Chinese Journal of Lung Cancer
Subjects:
Online Access:http://www.lungca.org/index.php?journal=01&page=article&op=viewFile&path[]=10.3779%2Fj.issn.1009-3419.2010.06.007&path[]=1542
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author Yang ZHANG
Zhenkui PAN
Xing ZHANG
Fei XU
Li ZHANG
author_facet Yang ZHANG
Zhenkui PAN
Xing ZHANG
Fei XU
Li ZHANG
author_sort Yang ZHANG
collection DOAJ
description Background and objective Recent studies indicated that Non-small cell lung cancer (NSCLC) patients with mutant K-RAS failed to benefit from adjuvant chemotherapy, and the cancer did not respond to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs). These findings indicated that K-RAS gene status can be a biomarker to predict the sensitivity of EGFR TKIs. The aim of this study is to analyze K-RAS gene mutations with NSCLC patients in Cancer Center of Sun Yet-sen University. Methods 52 fresh frozen tumor tissues were collected and K-RAS genes were amplified by PCR. Then PCR amplification fragments were sequenced and analyzed. Results Somatic mutations in the codon 12 of K-RAS gene in tumors were identified from 2 of 52 (3.8%) patients. There were no relationships among K-RAS gene mutations and gender, pathology, smoking, differentiation and stage. Conclusion The frequency of K-RAS gene mutations with NSCLC in our center is very low and is similar to that in Asia patients, and is lower than that in Caucasian population.
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spelling doaj.art-938d3788aabd4763b0655187821036272022-12-22T02:02:04ZzhoChinese Anti-Cancer Association; Chinese Antituberculosis AssociationChinese Journal of Lung Cancer1009-34191999-61872010-06-01136602606K-RAS Gene Mutations in Patients with Non-small Cell Lung CancerYang ZHANGZhenkui PANXing ZHANGFei XULi ZHANGBackground and objective Recent studies indicated that Non-small cell lung cancer (NSCLC) patients with mutant K-RAS failed to benefit from adjuvant chemotherapy, and the cancer did not respond to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs). These findings indicated that K-RAS gene status can be a biomarker to predict the sensitivity of EGFR TKIs. The aim of this study is to analyze K-RAS gene mutations with NSCLC patients in Cancer Center of Sun Yet-sen University. Methods 52 fresh frozen tumor tissues were collected and K-RAS genes were amplified by PCR. Then PCR amplification fragments were sequenced and analyzed. Results Somatic mutations in the codon 12 of K-RAS gene in tumors were identified from 2 of 52 (3.8%) patients. There were no relationships among K-RAS gene mutations and gender, pathology, smoking, differentiation and stage. Conclusion The frequency of K-RAS gene mutations with NSCLC in our center is very low and is similar to that in Asia patients, and is lower than that in Caucasian population.http://www.lungca.org/index.php?journal=01&page=article&op=viewFile&path[]=10.3779%2Fj.issn.1009-3419.2010.06.007&path[]=1542Lung neoplasmsRAS geneMutation
spellingShingle Yang ZHANG
Zhenkui PAN
Xing ZHANG
Fei XU
Li ZHANG
K-RAS Gene Mutations in Patients with Non-small Cell Lung Cancer
Chinese Journal of Lung Cancer
Lung neoplasms
RAS gene
Mutation
title K-RAS Gene Mutations in Patients with Non-small Cell Lung Cancer
title_full K-RAS Gene Mutations in Patients with Non-small Cell Lung Cancer
title_fullStr K-RAS Gene Mutations in Patients with Non-small Cell Lung Cancer
title_full_unstemmed K-RAS Gene Mutations in Patients with Non-small Cell Lung Cancer
title_short K-RAS Gene Mutations in Patients with Non-small Cell Lung Cancer
title_sort k ras gene mutations in patients with non small cell lung cancer
topic Lung neoplasms
RAS gene
Mutation
url http://www.lungca.org/index.php?journal=01&page=article&op=viewFile&path[]=10.3779%2Fj.issn.1009-3419.2010.06.007&path[]=1542
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AT xingzhang krasgenemutationsinpatientswithnonsmallcelllungcancer
AT feixu krasgenemutationsinpatientswithnonsmallcelllungcancer
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