Amplification pattern of 12q13-q15 genes (MDM2, CDK4, GLI) in urinary bladder cancer.
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Amplification pattern of 12q13-q15 genes (MDM2, CDK4, GLI) in urinary bladder cancer. / Simon, Ronald; Struckmann, Kirsten; Schraml, Peter; Wagner, Urs; Forster, Thomas; Moch, Holger; Fijan, André; Bruderer, James; Wilber, Kim; Mihatsch, Michael J; Gasser, Thomas; Sauter, Guido.
in: ONCOGENE, Jahrgang 21, Nr. 16, 16, 2002, S. 2476-2483.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Amplification pattern of 12q13-q15 genes (MDM2, CDK4, GLI) in urinary bladder cancer.
AU - Simon, Ronald
AU - Struckmann, Kirsten
AU - Schraml, Peter
AU - Wagner, Urs
AU - Forster, Thomas
AU - Moch, Holger
AU - Fijan, André
AU - Bruderer, James
AU - Wilber, Kim
AU - Mihatsch, Michael J
AU - Gasser, Thomas
AU - Sauter, Guido
PY - 2002
Y1 - 2002
N2 - The chromosomal region 12q13-q15 is recurrently amplified in bladder cancer. Putative target genes located in this region include MDM2, CDK4, and GLI. To evaluate the involvement of these genes in bladder cancer, we screened a tissue microarray (TMA) containing 2317 samples by fluorescence in situ hybridization (FISH). Amplification was found for MDM2 in 5.1%, for CDK4 in 1.1%, and for GLI in 0.4% of interpretable tumors. Among tumors having amplification of at least one of these 12q13-q15 genes, 76.6% had amplification of MDM2 alone and 6.4% had amplification of CDK4 alone. Coamplifications were seen of MDM2 and CDK4 in 10.6%, and of CDK4 and GLI in 6.4%. Neither coamplifications of all three genes nor isolated GLI amplifications were found. These data suggest a prominent role of MDM2 as a 12q13-q15 amplification target in bladder cancer. However, independent CDK4 amplifications do also occur suggesting either two non-overlapping amplification sites or else a minimal overlapping region between MDM2 and CDK4 perhaps containing another yet unknown oncogene. The frequency of amplification increased significantly from stage pTa to pT1-4 (P
AB - The chromosomal region 12q13-q15 is recurrently amplified in bladder cancer. Putative target genes located in this region include MDM2, CDK4, and GLI. To evaluate the involvement of these genes in bladder cancer, we screened a tissue microarray (TMA) containing 2317 samples by fluorescence in situ hybridization (FISH). Amplification was found for MDM2 in 5.1%, for CDK4 in 1.1%, and for GLI in 0.4% of interpretable tumors. Among tumors having amplification of at least one of these 12q13-q15 genes, 76.6% had amplification of MDM2 alone and 6.4% had amplification of CDK4 alone. Coamplifications were seen of MDM2 and CDK4 in 10.6%, and of CDK4 and GLI in 6.4%. Neither coamplifications of all three genes nor isolated GLI amplifications were found. These data suggest a prominent role of MDM2 as a 12q13-q15 amplification target in bladder cancer. However, independent CDK4 amplifications do also occur suggesting either two non-overlapping amplification sites or else a minimal overlapping region between MDM2 and CDK4 perhaps containing another yet unknown oncogene. The frequency of amplification increased significantly from stage pTa to pT1-4 (P
M3 - SCORING: Zeitschriftenaufsatz
VL - 21
SP - 2476
EP - 2483
JO - ONCOGENE
JF - ONCOGENE
SN - 0950-9232
IS - 16
M1 - 16
ER -