PMID- 22449226 OWN - NLM STAT- MEDLINE DCOM- 20120719 LR - 20220408 IS - 1440-1827 (Electronic) IS - 1320-5463 (Linking) VI - 62 IP - 4 DP - 2012 Apr TI - A comparison of epidermal growth factor receptor expression in malignant peritoneal and pleural mesothelioma. PG - 226-31 LID - 10.1111/j.1440-1827.2011.02778.x [doi] AB - An evaluation of epidermal growth factor receptor (EGFR) phenotypic expression in malignant pleural and peritoneal mesothelioma was undertaken, using immunohistochemical (IHC) and fluorescence in situ hybridization (FISH) analysis. Thirty-eight malignant mesothelioma (MM) specimens were subjected to IHC staining and FISH to evaluate the expression of EGFR protein and gene status. Overall positive IHC reaction was detected in 20/38 (53%) cases, in 11/22 (50%) pleural MM, and in 9/16 (56%) peritoneal MM. Our study confirmed that EGFR membranous expression is a common feature in MM, but not in benign mesothelial lesion. Thirty-seven cases did not show a gene copy number gain. Only one case showed a copy number gain. The protein overexpression of EGFR was not related to a gene copy number gain. CI - (c) 2012 The Authors. Pathology International (c) 2012 Japanese Society of Pathology and Blackwell Publishing Asia Pty Ltd. FAU - Enomoto, Yasunori AU - Enomoto Y AD - Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan. FAU - Kasai, Takahiko AU - Kasai T FAU - Takeda, Maiko AU - Takeda M FAU - Takano, Masato AU - Takano M FAU - Morita, Kouhei AU - Morita K FAU - Kadota, Eiji AU - Kadota E FAU - Iizuka, Norishige AU - Iizuka N FAU - Maruyama, Hiroshi AU - Maruyama H FAU - Haratake, Joji AU - Haratake J FAU - Kojima, Yu AU - Kojima Y FAU - Ikeda, Naoya AU - Ikeda N FAU - Nonomura, Akitaka AU - Nonomura A LA - eng PT - Comparative Study PT - Journal Article DEP - 20120130 PL - Australia TA - Pathol Int JT - Pathology international JID - 9431380 RN - 0 (Biomarkers, Tumor) RN - 0 (DNA, Neoplasm) RN - 0 (Genetic Markers) RN - EC 2.7.10.1 (ErbB Receptors) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/*metabolism MH - DNA, Neoplasm/analysis MH - ErbB Receptors/genetics/*metabolism MH - Female MH - Gene Dosage MH - Gene Expression Regulation, Neoplastic MH - Genetic Markers MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Mesothelioma/genetics/*metabolism/pathology MH - Middle Aged MH - Peritoneal Neoplasms/genetics/*metabolism/pathology MH - Pleural Neoplasms/genetics/*metabolism/pathology EDAT- 2012/03/28 06:00 MHDA- 2012/07/20 06:00 CRDT- 2012/03/28 06:00 PHST- 2012/03/28 06:00 [entrez] PHST- 2012/03/28 06:00 [pubmed] PHST- 2012/07/20 06:00 [medline] AID - 10.1111/j.1440-1827.2011.02778.x [doi] PST - ppublish SO - Pathol Int. 2012 Apr;62(4):226-31. doi: 10.1111/j.1440-1827.2011.02778.x. Epub 2012 Jan 30.