Gene expression studies demonstrate that the K-ras/Erk MAP kinase signal transduction pathway and other novel pathways contribute to the pathogenesis of cumene-induced lung tumors

Wakamatsu, N; Collins, JB; Parker, JS; Tessema, M; Clayton, NP; Ton, TV; Hong, HH; Belinsky, S; Devereux, TR; Sills, RC; Lahousse, SA

HERO ID

666618

Reference Type

Journal Article

Year

2008

Language

English

PMID

18648096

HERO ID 666618
In Press No
Year 2008
Title Gene expression studies demonstrate that the K-ras/Erk MAP kinase signal transduction pathway and other novel pathways contribute to the pathogenesis of cumene-induced lung tumors
Authors Wakamatsu, N; Collins, JB; Parker, JS; Tessema, M; Clayton, NP; Ton, TV; Hong, HH; Belinsky, S; Devereux, TR; Sills, RC; Lahousse, SA
Journal Toxicologic Pathology
Volume 36
Issue 5
Page Numbers 743-752
Abstract National Toxicology Program (NTP) inhalation studies demonstrated that cumene significantly increased the incidence of alveolar/bronchiolar adenomas and carcinomas in B6C3F1 mice. Cumene or isopropylbenzene is a component of crude oil used primarily in the production of phenol and acetone. The authors performed global gene expression analysis to distinguish patterns of gene regulation between cumene-induced tumors and normal lung tissue and to look for patterns based on the presence or absence of K-ras and p53 mutations in the tumors. Principal component analysis segregated the carcinomas into groups with and without K-ras mutations, but failed to separate the tumors based on p53 mutation status. Expression of genes associated with the Erk MAP kinase signaling pathway was significantly altered in carcinomas with K-ras mutations compared to tumors without K-ras mutations or normal lung. Gene expression analysis also suggested that cumene-induced carcinomas with K-ras mutations have greater malignant potential than those without mutations. In addition, significance analysis of function and expression (SAFE) demonstrated expression changes of genes regulated by histone modification in carcinomas with K-ras mutations. The gene expression analysis suggested the formation of alveolar/bronchiolar carcinomas in cumene-exposed mice typically involves mutation of K-ras, which results in increased Erk MAP kinase signaling and modification of histones.
Doi 10.1177/019262330832080
Pmid 18648096
Wosid WOS:000267459500013
Url https://www.scopus.com/inward/record.uri?eid=2-s2.0-49749117969&doi=10.1177%2f0192623308320801&partnerID=40&md5=608e5c4790ddfab288e9b449c7de2a70
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword Adenocarcinoma, Bronchiolo-Alveolar/chemically induced/genetics/pathology; Animals; Benzene Derivatives/ toxicity; Female; Gene Expression Regulation, Neoplastic; Genes, ras/ genetics; Immunohistochemistry; Lung Neoplasms/ chemically induced/ genetics/pathology; Male; Mice; Mice, Inbred Strains; Mitogen-Activated Protein Kinases/ metabolism; Signal Transduction/ genetics/physiology
Is Qa No