Jung, Barbara and Vogt, Thomas and Mathieu-Daude, Francoise and Welsh, John and McClelland, Michael and Trenkle, Thomas and Weitzel, Christoph and Kullmann, Frank (1998) Estrogen-responsive RING finger mRNA induction in gastrointestinal carcinoma cells following bile acid treatment. CARCINOGENESIS, 19 (11). pp. 1901-1906. ISSN 0143-3334,
Full text not available from this repository. (Request a copy)Abstract
The underlying molecular mechanisms of the tumor-promoting activity of bile acids such as chenodeoxycholic acid (CDCA) and deoxycholic acid (DCA) and the protective effect of ursodeoxycholic acid (UDCA) remain largely unclear. Using RNA arbitrarily primed PCR (RAP-PCR) for differential display, we identified, cloned and sequenced differentially expressed transcripts after treating gastric carcinoma cells (St 23132) with the bile acids CDCA, DCA and UDCA, One of these transcripts was identified to be an estrogen-responsive RING finger protein (efp) mRNA, The differential expression of efp in gastric cancer cells was confirmed by low stringency RT-PCR, efp mRNA levels were induced 3-fold in gastric carcinoma cells after CDCA and DCA treatment, whereas no change in expression was detected after UDCA treatment. Finally, treatment of the colon carcinoma cell line HT 29 with DCA resulted in a 2- to 5-fold induction of efp mRNA levels whereas UDCA did not induce efp, As expected, efp expression was also increased after 24 h of estrogen treatment, In summary, a synergy or a common pathway of tumor enhancement of bile acids and estrogen via efp in gastrointestinal carcinogenesis can be envisioned.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COLON ADENOCARCINOMA CELLS; DEOXYCHOLIC-ACID; GROWTH-RESPONSE; PROTEIN-KINASE; MESSENGER-RNA; CHOLIC-ACID; RAT COLON; GENE; EXPRESSION; CARCINOGENESIS; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Innere Medizin I |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Mar 2023 04:30 |
| Last Modified: | 29 Mar 2023 04:30 |
| URI: | https://pred.uni-regensburg.de/id/eprint/49375 |
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