Detection of differentially expressed genes in mouse lung adenocarcinomas. Exp Lung Res 2001;27(3):217-29
Date
04/11/2001Pubmed ID
11293325Scopus ID
2-s2.0-0035083960 (requires institutional sign-in at Scopus site) 16 CitationsAbstract
Increasing evidence suggests that altered gene expression is associated with the induction and maintenance of malignancy in various organs including mouse lung adenocarcinomas. A competitive cDNA library screening (CCLS) was used to examine gene expression in 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone-induced lung adenocarcinomas from (C3H/HeJ x A/J])F1 mice. Comparisons of RNA expression in lung adenocarcinomas to those of normal surrounding lung tissue revealed altered expression in 220 clones from more than 50,000 clones screened. Fifty clones were selected for quantitative reverse transcriptase-polymerase chain reaction (PCR) analysis to verify altered expression. PCR primers were designed based on partial sequence analysis of the clones. Twenty-two clones were found to be differentially expressed in lung adenocarcinomas compared with normal lungs. GenBank database analysis showed that 14 of the 22 clones were homologous with known genes, whereas 8 clones contained novel sequences. Thirteen clones were down regulated in tumors compared to normal lung tissues, and 9 were overexpressed. The clones underexpressed or absent include adipocyte p27, carbonic anhydrase III, carbonyl reductase, cytochrome CYP2E1, skelemin, myosin, major urinary protein, and contrapsin. Overexpressed clones include Bruton's tyrosine kinase, cyclin D3, poly(A)-binding protein, alpha-fetoprotein, transferrin, and mouse B2 family repetitive sequence. Further examination of biologic implications of the differentially expressed genes in lung adenocarcinomas is necessary to understand their role(s) in mouse lung carcinogenesis.
Author List
Lin L, Wang Y, Bergman G, Kelloff GJ, Lubet RA, You MMESH terms used to index this publication - Major topics in bold
AdenocarcinomaAnimals
Gene Expression
Lung
Lung Neoplasms
Mice
Mice, Inbred A
Mice, Inbred C3H
RNA, Messenger
RNA, Neoplasm
Reverse Transcriptase Polymerase Chain Reaction
