PMID- 11882907 OWN - NLM STAT- MEDLINE DCOM- 20020523 LR - 20191105 IS - 1219-4956 (Print) IS - 1219-4956 (Linking) VI - 7 IP - 4 DP - 2001 TI - Her-2/neu gene amplification compared with HER-2/neu protein overexpression on ultrasound guided core-needle biopsy specimens of breast carcinoma. PG - 279-83 AB - Genomic amplification and oncoprotein overexpression of Her-2/neu was studied on ultrasound core needle biopsy specimens of the infiltrative ductal carcinomas of the breast. We performed two colour fluorescence in situ hybridization (FISH) for Her-2/neu and chromosome 17 and compared the FISH results with the immunohistochemical overexpression of Her-2/neu protein by 2 antibodies (DAKO HercepTest and the BioGenex monoclonal antibody AM 134-5M). Furthermore, following radical mastectomy with axillary dissection, Her-2/neu status of the patients were compared with the well known histopathological prognostic factors such as histologic grade, tumor stage, lympho/ vascular invasion, surgical margin status and Paget s disease. Amplification was demonstrated 27% of the cases. Her-2/neu protein overexpression was detected in 47% and 80% of the cases with CB11 and HercepTest respectively. We revealed statistically significant association between the tumor, oncoprotein expression and oncogene amplification (p<0.05). The results of our study showed that combination of IHC and FISH methods enhances the evaluation of tumor genetics at both gene and protein level for the analysis of Her-2/neu in breast carcinoma. FAU - Kaya, H AU - Kaya H AD - Marmara University Hospital, Department of Pathology Altunizade, Istanbul, 81190, Turkey. hkaya@superonline.com FAU - Ragazzini, T AU - Ragazzini T FAU - Aribal, E AU - Aribal E FAU - Guney, I AU - Guney I FAU - Kotiloglu, E AU - Kotiloglu E LA - eng PT - Comparative Study PT - Journal Article PL - Switzerland TA - Pathol Oncol Res JT - Pathology oncology research : POR JID - 9706087 RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Adult MH - Aged MH - Biopsy, Needle MH - Breast Neoplasms/*genetics/*metabolism/pathology MH - Carcinoma, Ductal, Breast/*genetics/*metabolism/pathology MH - Female MH - Gene Amplification MH - Gene Expression MH - Humans MH - Immunoenzyme Techniques MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Middle Aged MH - Neoplasm Staging MH - Paget's Disease, Mammary/metabolism/pathology MH - Receptor, ErbB-2/*genetics/*metabolism MH - Ultrasonography, Mammary EDAT- 2002/03/08 10:00 MHDA- 2002/05/25 10:01 CRDT- 2002/03/08 10:00 PHST- 2002/03/08 10:00 [pubmed] PHST- 2002/05/25 10:01 [medline] PHST- 2002/03/08 10:00 [entrez] AID - PAOR.2001.7.4.0279 [pii] AID - 10.1007/BF03032384 [doi] PST - ppublish SO - Pathol Oncol Res. 2001;7(4):279-83. doi: 10.1007/BF03032384.