title: Patterns of specific genomic alterations associated with poor prognosis in high-grade renal cell carcinomas.
abstract: A series of 13 sporadic renal cell carcinomas was analyzed for the specific chromosome rearrangements after serial xenografting into immunodeficient mice. Seven tumors displayed genetic traits of the conventional subtype and 5 showed genetic features of the papillary subtype. In all the xenografted conventional tumors, we observed loss of 3p, as well as loss of the 9p21 region and of the long arm of chromosome 14, both considered as markers of a poor prognosis. In the xenografted papillary tumors, a duplication of chromosome arm 8q was observed concomitant with the duplication of the 7q31 region. The association of the 7q31 and 8q22 approximately qter duplicated regions was also observed for one conventional tumor. The latency of tumor take was found to be reduced and the median time to passage statistically shorter for all tumors which presented the associated duplication of the 7q31 and 8q22 approximately qter regions. The proto-oncogene NOV (nephroblastoma overexpressed gene) maps to 8q24.1 and is overexpressed in some Wilms tumors. It could be an interesting candidate gene, since its level of expression and release in the culture medium was found to be increased in all of the fast growing tumors analyzed.
authors.affiliation: Laboratoire de Cytogénétique et Génétique Oncologiques, Institut Gustave Roussy, Villejuif, France.
authors.forename: L
authors.initials: L
authors.lastname: Glukhova
authors.forename: E
authors.initials: E
authors.lastname: Angevin
authors.forename: C
authors.initials: C
authors.lastname: Lavialle
authors.forename: B
authors.initials: B
authors.lastname: Cadot
authors.forename: M J
authors.initials: MJ
authors.lastname: Terrier-Lacombe
authors.forename: B
authors.initials: B
authors.lastname: Perbal
authors.forename: A
authors.initials: A
authors.lastname: Bernheim
authors.forename: A F
authors.initials: AF
authors.lastname: Goguel
mesh_terms: D000818:Animals; D015152:Blotting, Northern; D015153:Blotting, Western; D002292:Carcinoma, Renal Cell / Q000175:diagnosis* / Q000235:genetics*; D002460:Cell Line; D002872:Chromosome Deletion; D002883:Chromosomes, Human, Pair 14; D002893:Chromosomes, Human, Pair 3; D002897:Chromosomes, Human, Pair 7; D002898:Chromosomes, Human, Pair 8; D002899:Chromosomes, Human, Pair 9; D055513:Connective Tissue Growth Factor; D020440:Gene Duplication; D006801:Humans; D017874:Immediate-Early Proteins; D036341:Intercellular Signaling Peptides and Proteins; D007621:Karyotyping; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000235:genetics*; D051379:Mice; D016513:Mice, SCID; D009154:Mutation; D009368:Neoplasm Transplantation; D055514:Nephroblastoma Overexpressed Protein; D009856:Oncogene Proteins, Viral / Q000235:genetics; D011379:Prognosis; D000090063:Proto-Oncogene Mas; D011518:Proto-Oncogene Proteins / Q000235:genetics
chemical_list: C526317:CCN2 protein, human; C526318:CCN2 protein, mouse; C526319:CCN3 protein, human; C526320:Ccn3 protein, mouse; D017874:Immediate-Early Proteins; D036341:Intercellular Signaling Peptides and Proteins; C000715470:MAS1 protein, human; D055514:Nephroblastoma Overexpressed Protein; D009856:Oncogene Proteins, Viral; D000090063:Proto-Oncogene Mas; D011518:Proto-Oncogene Proteins; D055513:Connective Tissue Growth Factor