title: Oncogene patterns in breast and ovarian carcinomas.
abstract: Nineteen paraffin-embedded breast cancer tissue samples selected for long survival (more than 5 years) were analysed for detecting the amplification of the c-erbB-2 (Her-2/neu) oncogene by Polymerase Chain Reaction (PCR). Strong correlation was elucidated between c-erbB-2 amplification and survival; such correlation was also observed with histopathologic types and nuclear grading. Because of the similarity of the breast and ovarian cancer in the etiology of the diseases, amplification of c-erbB-2, c-myc and Ki-ras genes was examined in 32 ovarian carcinoma samples (stage I-IV). In ovarian carcinomas c-erbB-2 amplification occurred in 34% (11/32) of the fresh tumour samples, and correlation between amplification and clinical staging at P < 0.05 significance level was observed. Amplification of c-myc was detected in 9% (3/32) and none of the tumours showed amplification of Ki-ras.
authors.affiliation: National Institute of Oncology, Budapest, Hungary.
authors.forename: B
authors.initials: B
authors.lastname: Csókay
authors.forename: J
authors.initials: J
authors.lastname: Papp
authors.forename: I
authors.initials: I
authors.lastname: Besznyák
authors.forename: P
authors.initials: P
authors.lastname: Bösze
authors.forename: Z
authors.initials: Z
authors.lastname: Sárosi
authors.forename: J
authors.initials: J
authors.lastname: Tóth
authors.forename: Z
authors.initials: Z
authors.lastname: Zalay
authors.forename: E
authors.initials: E
authors.lastname: Oláh
mesh_terms: D001483:Base Sequence; D015139:Blotting, Southern; D001943:Breast Neoplasms / Q000235:genetics*; D002277:Carcinoma / Q000235:genetics*; D066246:ErbB Receptors / Q000235:genetics; D005260:Female; D005784:Gene Amplification; D016259:Genes, myc / Q000502:physiology; D011905:Genes, ras / Q000502:physiology; D006801:Humans; D008969:Molecular Sequence Data; D010051:Ovarian Neoplasms / Q000235:genetics*; D016133:Polymerase Chain Reaction; D011518:Proto-Oncogene Proteins / Q000235:genetics; D011519:Proto-Oncogenes / Q000502:physiology*; D018719:Erb-b2 Receptor Tyrosine Kinases
chemical_list: D066246:ErbB Receptors; D011518:Proto-Oncogene Proteins; D018719:Erb-b2 Receptor Tyrosine Kinases