The tobacco carcinogen nitrosamine induces a differential gene expression response in tumour susceptible A/J and resistant C3H mouse lungs.

ABSTRACT: The nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), an important carcinogen found in tobacco products, causes lung cancer in genetically susceptible animals. In addition to mutations of the K-Ras gene, NNK has non-mutagenic effects that include alterations in gene expression and immunomodulation in the lung. Here we report the identification of two gene sets associated with NNK-induced pulmonary tumourigenesis. First, to identify genes involved in the susceptibility to NNK, we compared the lung transcriptomes of NNK-resistant C3H mice with that of the NNK-susceptible A/J mice, identifying differential expression of genes related to innate immunity and inflammation. Second, to identify gene expression induced by NNK, we compared the lung transcriptomes of C3H and A/J mice

SUBMITTER: Gordon W 

PROVIDER: S-EPMC3587785 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature