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. 1990 Oct;62(4):585–590. doi: 10.1038/bjc.1990.334

Amplification and protein over-expression of the neu/HER-2/c-erbB-2 protooncogene in human breast carcinomas: relationship to loss of gene sequences on chromosome 17, family history and prognosis.

A L Børresen 1, L Ottestad 1, A Gaustad 1, T I Andersen 1, R Heikkilä 1, T Jahnsen 1, K M Tveit 1, J M Nesland 1
PMCID: PMC1971471  PMID: 1977466

Abstract

c-erbB-2 gene amplification and protein over-expression were investigated in 89 primary tumours and 24 metastases from Norwegian breast cancer patients. Amplification occurred in 22.5% of the primary tumours and 50% of the metastases. The amplification was negatively correlated to the oestrogen receptor (ER) content in both the primary tumours and the metastases. No significant differences between amplified and non-amplified tumours were observed with regard to node status, clinical stage, tumour size or menopausal status, although correlations of borderline significance were found between node status, clinical stage and high degree of gene amplification. All the amplified tumours were of the invasive ductal type. Follow-up data of patients observed for more than 1 year showed a significantly higher recurrence rate in the c-erbB-2 amplified group. Allele loss of chromosome 17p and of 7q was seen in 55% and 48% of the tumours respectively. No significant correlation was found between these losses and clinico-histological parameters. More than 50% of the tumours with a loss of 17q sequences had an amplification of c-erbB-2 which is located on 17q12-21, indicating that only one of the chromosomes may be involved in the amplification of the c-erbB-2. A trend towards a correlation between loss of 17q and high degree of amplification were found. No correlation was found between positive family history of breast cancer and c-erbB-2 gene amplification, nor loss of 17p or 17q sequences. Our data support the hypothesis that amplification correlates with aggressive tumour behaviour, and thus may be used as a prognostic factor in breast carcinomas. The allele losses on 17p and 17q points to tumour suppressor gene or genes on this chromosome, although not as predisposing genes in families.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Coussens L., Yang-Feng T. L., Liao Y. C., Chen E., Gray A., McGrath J., Seeburg P. H., Libermann T. A., Schlessinger J., Francke U. Tyrosine kinase receptor with extensive homology to EGF receptor shares chromosomal location with neu oncogene. Science. 1985 Dec 6;230(4730):1132–1139. doi: 10.1126/science.2999974. [DOI] [PubMed] [Google Scholar]
  2. Feinberg A. P., Vogelstein B. A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity. Anal Biochem. 1983 Jul 1;132(1):6–13. doi: 10.1016/0003-2697(83)90418-9. [DOI] [PubMed] [Google Scholar]
  3. Mackay J., Steel C. M., Elder P. A., Forrest A. P., Evans H. J. Allele loss on short arm of chromosome 17 in breast cancers. Lancet. 1988 Dec 17;2(8625):1384–1385. doi: 10.1016/s0140-6736(88)90584-3. [DOI] [PubMed] [Google Scholar]
  4. Myers J. C., Dickson L. A., de Wet W. J., Bernard M. P., Chu M. L., Di Liberto M., Pepe G., Sangiorgi F. O., Ramirez F. Analysis of the 3' end of the human pro-alpha 2(I) collagen gene. Utilization of multiple polyadenylation sites in cultured fibroblasts. J Biol Chem. 1983 Aug 25;258(16):10128–10135. [PubMed] [Google Scholar]
  5. Popescu N. C., King C. R., Kraus M. H. Localization of the human erbB-2 gene on normal and rearranged chromosomes 17 to bands q12-21.32. Genomics. 1989 Apr;4(3):362–366. doi: 10.1016/0888-7543(89)90343-1. [DOI] [PubMed] [Google Scholar]
  6. Semba K., Kamata N., Toyoshima K., Yamamoto T. A v-erbB-related protooncogene, c-erbB-2, is distinct from the c-erbB-1/epidermal growth factor-receptor gene and is amplified in a human salivary gland adenocarcinoma. Proc Natl Acad Sci U S A. 1985 Oct;82(19):6497–6501. doi: 10.1073/pnas.82.19.6497. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Shih C., Padhy L. C., Murray M., Weinberg R. A. Transforming genes of carcinomas and neuroblastomas introduced into mouse fibroblasts. Nature. 1981 Mar 19;290(5803):261–264. doi: 10.1038/290261a0. [DOI] [PubMed] [Google Scholar]
  8. Slamon D. J., Clark G. M. Amplification of c-erbB-2 and aggressive human breast tumors? Science. 1988 Jun 24;240(4860):1795–1798. doi: 10.1126/science.3289120. [DOI] [PubMed] [Google Scholar]
  9. Slamon D. J., Clark G. M., Wong S. G., Levin W. J., Ullrich A., McGuire W. L. Human breast cancer: correlation of relapse and survival with amplification of the HER-2/neu oncogene. Science. 1987 Jan 9;235(4785):177–182. doi: 10.1126/science.3798106. [DOI] [PubMed] [Google Scholar]
  10. Slamon D. J., Godolphin W., Jones L. A., Holt J. A., Wong S. G., Keith D. E., Levin W. J., Stuart S. G., Udove J., Ullrich A. Studies of the HER-2/neu proto-oncogene in human breast and ovarian cancer. Science. 1989 May 12;244(4905):707–712. doi: 10.1126/science.2470152. [DOI] [PubMed] [Google Scholar]
  11. Tavassoli M., Quirke P., Farzaneh F., Lock N. J., Mayne L. V., Kirkham N. c-erbB-2/c-erbA co-amplification indicative of lymph node metastasis, and c-myc amplification of high tumour grade, in human breast carcinoma. Br J Cancer. 1989 Oct;60(4):505–510. doi: 10.1038/bjc.1989.303. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Venter D. J., Tuzi N. L., Kumar S., Gullick W. J. Overexpression of the c-erbB-2 oncoprotein in human breast carcinomas: immunohistological assessment correlates with gene amplification. Lancet. 1987 Jul 11;2(8550):69–72. doi: 10.1016/s0140-6736(87)92736-x. [DOI] [PubMed] [Google Scholar]
  13. Wright C., Angus B., Nicholson S., Sainsbury J. R., Cairns J., Gullick W. J., Kelly P., Harris A. L., Horne C. H. Expression of c-erbB-2 oncoprotein: a prognostic indicator in human breast cancer. Cancer Res. 1989 Apr 15;49(8):2087–2090. [PubMed] [Google Scholar]
  14. Yamamoto T., Ikawa S., Akiyama T., Semba K., Nomura N., Miyajima N., Saito T., Toyoshima K. Similarity of protein encoded by the human c-erb-B-2 gene to epidermal growth factor receptor. Nature. 1986 Jan 16;319(6050):230–234. doi: 10.1038/319230a0. [DOI] [PubMed] [Google Scholar]
  15. Yarden Y., Weinberg R. A. Experimental approaches to hypothetical hormones: detection of a candidate ligand of the neu protooncogene. Proc Natl Acad Sci U S A. 1989 May;86(9):3179–3183. doi: 10.1073/pnas.86.9.3179. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Yokota J., Yamamoto T., Miyajima N., Toyoshima K., Nomura N., Sakamoto H., Yoshida T., Terada M., Sugimura T. Genetic alterations of the c-erbB-2 oncogene occur frequently in tubular adenocarcinoma of the stomach and are often accompanied by amplification of the v-erbA homologue. Oncogene. 1988 Mar;2(3):283–287. [PubMed] [Google Scholar]
  17. Yokota J., Yamamoto T., Toyoshima K., Terada M., Sugimura T., Battifora H., Cline M. J. Amplification of c-erbB-2 oncogene in human adenocarcinomas in vivo. Lancet. 1986 Apr 5;1(8484):765–767. doi: 10.1016/s0140-6736(86)91782-4. [DOI] [PubMed] [Google Scholar]
  18. van de Vijver M. J., Mooi W. J., Wisman P., Peterse J. L., Nusse R. Immunohistochemical detection of the neu protein in tissue sections of human breast tumors with amplified neu DNA. Oncogene. 1988 Feb;2(2):175–178. [PubMed] [Google Scholar]

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