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RECORD NUMBER: 31 OF 33

OLS Field Name OLS Field Data
Main Title Transcriptional Changes in Hepatic Tumors of Rats Induced by Di(2-ethylhexyl) phthalate and Di-n-Octyl phthalate.
Author Kandala, J. C. ; DeAngelo, A. B. ; Reddy, T. V. ; Daniel, F. B. ; Guntaka., R. V. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. ;Missouri Univ.-Columbia.
Publisher c1993
Year Published 1993
Report Number EPA/600/J-94/198;
Stock Number PB94-163771
Additional Subjects Experimental liver neoplasms ; Genetic transcription ; Toxicity ; Diethylhexyl phthalate ; Oncogenes ; Ribonucleic acids ; Gene expression ; Nucleic acid hybridization ; Albumins ; Cytochrome P-450 ; Aldehyde dehydrogenase ; Ornithine decarboxylase ; Reprint ; Di-n-octyl phthalate
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB94-163771 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/01/1994
Collation 15p
Abstract
Di(2-ethylhexyl) phthalate (DEHP) and di-n-octyl phthalate (DOP) are nongenotoxic carcinogens found in drinking water, which induce mainly liver tumors. The mechanism of tumorigenesis by these chemicals remains to be elucidated. The present study was undertaken to test whether any known oncogenes are activated in DEHP- and DOP-induced tumors. The authors examined tumor and chemically treated rat liver RNAs for elevated expression of 10 different oncogenes: c-myc, c-fos, c-Ha-ras, c-Ki-ras, c-raf-l, c-jun, erbA, v-bas, v-sis and v-src. As controls, they used tissue-specific genes such as albumin, cytochrome P450, aldehyde dehydrogenase, and ornithine decarboxylase. Their results indicated that the expression pattern of oncogenes and other genes in chemically treated livers or tumors was not greatly different from that of controls, although in individual livers, multiple changes in transcription were detected. Recently, the authors isolated two genes from a hepatoma cell line by subtraction hybridization.