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题名: Comparison of genomic signatures of non-small cell lung cancer recurrence between two microarray platforms
作者: JOHN WEN-CHENG CHANG;NIEN-CHIH WEI;HUNG-JU SU;JIE-LEN HUANG;TSE-CHING CHEN;YI-CHENG WU;CHIH-TENG YU;MING-MO HOU;CHIA-HSUN HSIEH;JIA-JUAN HSIEH;CHIAO-EN WU;HSIN-YI CHENG;TODD HSU;TZU-HAO WANG
贡献者: 國立臺灣海洋大學:生命科學暨生物科技學系
日期: 2012
上传时间: 2016-08-31T07:17:53Z
出版者: Anticancer Research
摘要: Abstract: Background: Cancer genomic signatures may vary using different platforms. We compared the differential gene expression in non-small cell lung cancer (NSCLC) between two platforms in order to find the most relevant genomic signatures of tumor recurrence. Materials and Methods: We analyzed gene expression in frozen lung cancer tissue from 59 selected patients who had undergone surgical resection of NSCLC. These patients were divided into two groups: group R, patients who had a tumor recurrence within four years, n=37; group NR, patients who remained disease-free four years following initial surgery, n=22. Each RNA sample was assayed twice using both Affymetrix and Illumina GeneChip. Data were analyzed by principal component analysis and leave-one-out cross-validation. Results: Using the same filtering criteria, 13 genes that were differentially expressed between R and NR were identified by Affymetrix, while 21 genes were identified by Illumina GeneChip. In common, a total of six genes were detected by both systems. Using univariate analysis, four (lipocalin 2, LCN2; parathyroid hormone-like hormone, PTHLH; ras-related protein Rab-38, RAB38; and four jointed box 1, FJX1) of these six genes were associated with survival. A risk score of survival was calculated according to the four-gene expression. There was a significant difference in overall survival between low- and high-risk groups. Conclusion: A four-gene signature is associated with survival among patients with early-stage NSCLC. Further validation of these findings is warranted.
關聯: 32(4)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/38404
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