PMID- 23645767 OWN - NLM STAT- MEDLINE DCOM- 20130626 LR - 20191210 IS - 1791-7530 (Electronic) IS - 0250-7005 (Linking) VI - 33 IP - 5 DP - 2013 May TI - Evaluation of current prognostic and predictive markers in breast cancer: a validation study of tissue microarrays. PG - 2139-45 AB - BACKGROUND: Tissue microarrays (TMAs) are an attractive alternative to analysis of whole sections (WS). For breast carcinomas, the recent recommendations for cut-offs (i.e. Ki67, H-score) have necessitated the re-evaluation of TMAs. MATERIALS AND METHODS: TMA results of immunohistochemistry (IHC) and Fluorescence in situ hybridization (FISH) testing for Estrogen receptors (ER), Progesterone receptors (PgR), Ki67 and HER2 were compared against the results of WS for 88 breast carcinomas. RESULTS: We found excellent agreement between the two methods for ER and PgR IHC evaluation, using the H-score (Kappa coefficient 0.972 and 0.9, respectively). There was also excellent correlation for HER2 IHC (Kappa coefficient 1) and amplification (Kappa coefficient 0.933). Furthermore, scoring of Ki67 was highly-correlated between TMAs and WS (Kappa coefficient 0.954). The latter excellent correlation has not, to our knowledge, been previously reported. CONCLUSION: For breast cancer, TMAs are an efficient and reliable alternative to the use of WS, using the currently recommended markers, evaluation protocols and cut-off values. FAU - Batistatou, Anna AU - Batistatou A AD - Department of Pathology, University of Ioannina, Medical School, University Campus, PO BOX 1186, 451 10, Ioannina, Greece. abatista@cc.uoi.gr FAU - Televantou, Despina AU - Televantou D FAU - Bobos, Mattheos AU - Bobos M FAU - Eleftheraki, Anastasia G AU - Eleftheraki AG FAU - Kouvaras, Evangelos AU - Kouvaras E FAU - Chrisafi, Sofia AU - Chrisafi S FAU - Koukoulis, George K AU - Koukoulis GK FAU - Malamou-Mitsi, Vassiliki AU - Malamou-Mitsi V FAU - Fountzilas, George AU - Fountzilas G LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Validation Study PL - Greece TA - Anticancer Res JT - Anticancer research JID - 8102988 RN - 0 (Biomarkers, Tumor) RN - 0 (Ki-67 Antigen) RN - 0 (Receptors, Estrogen) RN - 0 (Receptors, Progesterone) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/genetics/*metabolism MH - Breast Neoplasms/*diagnosis/genetics/metabolism MH - Carcinoma, Ductal, Breast/*diagnosis/genetics/metabolism MH - Carcinoma, Lobular/*diagnosis/genetics/metabolism MH - Female MH - Follow-Up Studies MH - Humans MH - In Situ Hybridization, Fluorescence MH - Ki-67 Antigen/genetics/metabolism MH - Middle Aged MH - Neoplasm Staging MH - Prognosis MH - Receptor, ErbB-2/genetics/metabolism MH - Receptors, Estrogen/genetics/metabolism MH - Receptors, Progesterone/genetics/metabolism MH - Tissue Array Analysis OTO - NOTNLM OT - Breast cancer OT - ER OT - HER2 OT - Ki67 OT - PgR OT - TMA EDAT- 2013/05/07 06:00 MHDA- 2013/06/28 06:00 CRDT- 2013/05/07 06:00 PHST- 2013/05/07 06:00 [entrez] PHST- 2013/05/07 06:00 [pubmed] PHST- 2013/06/28 06:00 [medline] AID - 33/5/2139 [pii] PST - ppublish SO - Anticancer Res. 2013 May;33(5):2139-45.