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Carcinogen-Specific Gene Expression Profiles in Short-term Treated Eker and Wild-type Rats Indicative of Pathways Involved in Renal Tumorigenesis

Carcinogen-Specific Gene Expression Profiles in Short-term Treated Eker and Wild-type Rats Indicative of Pathways Involved in Renal Tumorigenesis

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STEMMER, Kerstin, Heidrun ELLINGER-ZIEGELBAUER, Hans-Jürgen AHR, Daniel R. DIETRICH, 2007. Carcinogen-Specific Gene Expression Profiles in Short-term Treated Eker and Wild-type Rats Indicative of Pathways Involved in Renal Tumorigenesis. In: Cancer research. 67(9), pp. 4052-4068. ISSN 0008-5472. eISSN 1538-7445

@article{Stemmer2007Carci-7810, title={Carcinogen-Specific Gene Expression Profiles in Short-term Treated Eker and Wild-type Rats Indicative of Pathways Involved in Renal Tumorigenesis}, year={2007}, doi={10.1158/0008-5472.CAN-06-3587}, number={9}, volume={67}, issn={0008-5472}, journal={Cancer research}, pages={4052--4068}, author={Stemmer, Kerstin and Ellinger-Ziegelbauer, Heidrun and Ahr, Hans-Jürgen and Dietrich, Daniel R.} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/7810"> <dc:language>eng</dc:language> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:37:42Z</dcterms:available> <dcterms:bibliographicCitation>First publ. in: Cancer research 67 (2007), 9, pp. 4052-4068</dcterms:bibliographicCitation> <dc:creator>Stemmer, Kerstin</dc:creator> <dc:contributor>Dietrich, Daniel R.</dc:contributor> <dcterms:issued>2007</dcterms:issued> <dc:format>application/pdf</dc:format> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/7810"/> <dc:contributor>Stemmer, Kerstin</dc:contributor> <dc:rights>deposit-license</dc:rights> <dc:creator>Ahr, Hans-Jürgen</dc:creator> <dcterms:title>Carcinogen-Specific Gene Expression Profiles in Short-term Treated Eker and Wild-type Rats Indicative of Pathways Involved in Renal Tumorigenesis</dcterms:title> <dcterms:abstract xml:lang="eng">Eker rats heterozygous for a dominant germline mutation in the tuberous sclerosis 2 (Tsc2) tumor suppressor gene were used as a model to study renal carcinogenesis. Eker and corresponding wild-type rats were exposed to genotoxic aristolochic acid (AA) or non-genotoxic ochratoxin A (OTA) to elucidate early carcinogen-specific gene expression changes and to test whether Eker rats are more sensitive to carcinogen-induced changes in gene expression. Male Eker and wild-type rats were gavaged daily with AA (10 mg/kg body weight) or OTA (210 µg/kg body weight). After 1, 3, 7, and 14 days of exposure, renal histopathology, tubular cell proliferation, and Affymetrix gene expression profiles from renal cortex/outer medulla were analyzed. AA-treated Eker and wild-type rats were qualitatively comparable in all variables assessed, suggesting a Tsc2-independent mechanism of action. OTA treatment resulted in slightly increased cortical pathology and significantly elevated cell proliferation in both strains, although Eker rats were more sensitive. Deregulated genes involved in the phosphatidylinositol 3-kinase-AKT-Tsc2-mammalian target of rapamycin signaling, among other important genes prominent in tumorigenesis, in conjunction with the enhanced cell proliferation and presence of preneoplastic lesions suggested involvement of Tsc2 in OTA-mediated toxicity and carcinogenicity, especially as deregulation of genes involved in this pathway was more prominent in the Tsc2 mutant Eker rat.</dcterms:abstract> <dc:creator>Dietrich, Daniel R.</dc:creator> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:contributor>Ahr, Hans-Jürgen</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:37:42Z</dc:date> <dc:contributor>Ellinger-Ziegelbauer, Heidrun</dc:contributor> <dc:creator>Ellinger-Ziegelbauer, Heidrun</dc:creator> </rdf:Description> </rdf:RDF>

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