Pathway-based evaluation of 380 candidate genes and lung cancer susceptibility suggests the importance of the cell cycle pathway

Dean H. Hosgood, Idan Menashe, Min Shen, Meredith Yeager, Jeff Yuenger, Preetha Rajaraman, Xingzhou He, Nilanjan Chatterjee, Neil E. Caporaso, Yong Zhu, Stephen J. Chanock, Tongzhang Zheng, Qing Lan

Research output: Contribution to journalArticlepeer-review

56 Scopus citations


Common genetic variation may play an important role in altering lung cancer risk. We conducted a pathway-based candidate gene evaluation to identify genetic variations that may be associated with lung cancer in a population-based case-control study in Xuan Wei, China (122 cases and 111 controls). A total of 1260 single-nucleotide polymorphisms (SNPs) in 380 candidate genes for lung cancer were successfully genotyped and assigned to one of 10 pathways based on gene ontology. Logistic regression was used to assess the marginal effect of each SNP on lung cancer susceptibility. The minP test was used to identify statistically significant associations at the gene level. Important pathways were identified using a test of proportions and the rank truncated product methods. The cell cycle pathway was found as the most important pathway (P = 0.044) with four genes significantly associated with lung cancer (PLA2G6 minP = 0.001, CCNA2 minP = 0.006, GSK3β minP = 0.007 and EGF minP = 0.013), after adjusting for multiple comparisons. Interestingly, most cell cycle genes that were associated with lung cancer in this analysis were concentrated in the AKT signaling pathway, which is essential for regulation of cell cycle progression and cellular survival, and may be important in lung cancer etiology in Xuan Wei. These results should be viewed as exploratory until they are replicated in a larger study.

Original languageEnglish (US)
Pages (from-to)1938-1943
Number of pages6
Issue number10
StatePublished - 2008
Externally publishedYes

ASJC Scopus subject areas

  • Cancer Research


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