TY  - GEN
A1  - Scholtka, Bettina
A1  - Schneider, Mandy
A1  - Melcher, Ralph
A1  - Katzenberger, Tiemo
A1  - Friedrich, Daniela
A1  - Berghof-Jäger, Kornelia
A1  - Scheppach, Wolfgang
A1  - Steinberg, Pablo
T1  - A gene marker panel covering the Wnt and the Ras-Raf-MEK-MAPK signalling pathways allows to detect gene mutations in 80% of early (UICC I) colon cancer stages in humans
N2  - Background: Very recently a gene marker panel that allows the mutational analysis of APC, CTNNB1, B-RAF and K-RAS was conceived. The aim of the present study was to use the 4-gene marker panel covering the Wnt and Ras-Raf-MEK-MAPK signalling pathways to determine the percentage of sporadic colorectal carcinomas (CRC) carrying at least one of the four above-mentioned genes in a mutated form alone and/or in combination with microsatellite instability (MSI) and to compare the sensitivity of the gene marker panel used in this study with that of gene marker panels previously reported in the scientific literature. Methods: CTNNB1 and B-RAF were screened by PCR-single-strand conformation polymorphism analysis and K-RAS gene mutations by restriction fragment length polymorphism analysis. For the mutational analysis of the APC gene mutation cluster region (codons 1243–1567) direct DNA sequencing was performed. The U.S. National Cancer Institute microsatellite panel (BAT25, BAT26, D2S123, D5S346 and D17S250) was used for MSI analysis. Results: It could be shown that about 80% of early stage CRC (UICC stages I and II) and over 90% of CRC in the UICC stage IV carried at least one mutated gene and/or showed MSI. No significant increase in the gene mutation frequencies could be determined when comparing tumours in the UICC stage I with those in UICC stage IV. Conclusions: When compared with previously published gene marker panels the 4-gene marker panel used in the present study shows an excellent performance, allowing to detect genetic alterations in 80–90% of human sporadic CRC samples analyzed.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - paper 120 
KW  - Colorectal carcinomas
KW  - K-RAS
KW  - Microsatellite instability
KW  - Oncogenes
KW  - Tumour suppressor genes
Y1  - 2009
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-44587
ER  - 
TY  - JOUR
A1  - Kühnel, Dana
A1  - Steinberg, Pablo
A1  - Scholtka, Bettina
T1  - A human-relevant dose of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PHIP) can induce precancerous lesions in rat intestine after 6 months of exposure
Y1  - 2004
SN  - 0028-1298
ER  - 
TY  - JOUR
A1  - Thierbach, René
A1  - Drewes, Gunnar
A1  - Fusser, Markus
A1  - Wolfrum, Kathrin
A1  - Epe, Bernd
A1  - Ristow, Michael
A1  - Steinberg, Pablo
T1  - A role for iron-sulfur cluster proteins in DNA repair
Y1  - 2009
UR  - http://www.springerlink.com/content/100530
U6  - https://doi.org/10.1007/s00210-009-0404-1
SN  - 0028-1298
ER  - 
TY  - JOUR
A1  - Volohonsky, Gloria
A1  - Tuby, Chen N. Y. H.
A1  - Porat, Noga
A1  - Wellman-Rousseau, Maria
A1  - Visvikis, Athanase
A1  - Leroy, Pierre
A1  - Rashi, Sharon
A1  - Steinberg, Pablo
A1  - Stark, Avishay Abraham
T1  - A spectrophotometric assay of gamma-glutamylcysteine synthetase and glutathione synthetase in crude extracts from tissues and cultured mammalian cells
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Steinberg, Pablo
A1  - Fischer, Thomas M.
A1  - Arand, Michael
A1  - Park, Eunju
A1  - Elmadfa, Ibrahim
A1  - Rimkus, Gerhard
A1  - Brunn, Hubertus
A1  - Dienes, Hans-Peter
T1  - Acute hepatotoxicity of the polycyclic musk 7-acetyl-1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthaline (AHTN)
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Mazurek, Sybille
A1  - Eigenbrodt, Erich
A1  - Failing, Klaus
A1  - Steinberg, Pablo
T1  - Alterations in the glycolytic and glutaminolytic pathways after malignant transformation of rat liver oval cells
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Thierbach, René
A1  - Blume, Urte
A1  - Wolfrum, K.
A1  - Drewes, Gunnar
A1  - Voigt, Anja
A1  - Ristow, Michael
A1  - Steinberg, Pablo
T1  - Altered carbohydrate metabolism in a tumour developing knock-out mice model
Y1  - 2010
UR  - http://www.springerlink.com/content/100530
U6  - https://doi.org/10.1007/s00210-010-0508-7
SN  - 0028-1298
ER  - 
TY  - JOUR
A1  - Hengstler, Jan Georg
A1  - Utesch, D.
A1  - Steinberg, Pablo
T1  - Cryopreserved primary hepatocytes as a constantly available in vitro model for the evaluation of human and animal drug metabolism and enzyme induction
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Hengstler, Jan Georg
A1  - Ringel, M.
A1  - Biefang, Katja
A1  - Hammel, S.
A1  - Milbert, U.
A1  - Gerl, M.
A1  - Klebach, M.
A1  - Diener, B.
A1  - Platt, Karl-Ludwig
A1  - Böttger, Thomas
A1  - Steinberg, Pablo
A1  - Oesch, Franz
T1  - Cultures with cryopreserved hepatocytes : applicability for studies of enzyme induction
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Steinberg, Pablo
A1  - Fischer, Thomas M.
A1  - Kiulies, Sandra
A1  - Biefang, Katja
A1  - Platt, Karl-Ludwig
A1  - Oesch, Franz
A1  - Böttger, Thomas
A1  - Bulitta, Clemens
A1  - Kempf, Peter
A1  - Hengstler, Jan Georg
T1  - Drug metabolizing capacity of cryopreserved human, rat and mouse liver parenchymal cells in suspension
Y1  - 1999
ER  -