PMID- 27753660 OWN - NLM STAT- MEDLINE DCOM- 20190624 LR - 20190624 IS - 1533-4058 (Electronic) IS - 1533-4058 (Linking) VI - 26 IP - 6 DP - 2018 Jul TI - Assessment of EGFR and ERBB2 (HER2) in Gastric and Gastroesophageal Carcinomas: EGFR Amplification is Associated With a Worse Prognosis in Early Stage and Well to Moderately Differentiated Carcinoma. PG - 374-382 LID - 10.1097/PAI.0000000000000437 [doi] AB - Epidermal growth factor receptor 1 (EGFR) and erb-b2 receptor tyrosine kinase 2 (ERBB2/HER2) are frequently dysregulated in human cancers. We analyzed EGFR and ERBB2 status in 105 gastric and gastroesophageal junction carcinoma and their clinicopathologic features. For EGFR, 92 (88%) tumors were scored as 0, 2 (2%) as 1+, 7 (7%) as 2+, and 4 (3%) as 3+ by immunohistochemistry (IHC) and 4 (4%) tumors showed EGFR amplification by fluorescence in situ hybridization (FISH). For ERBB2, 90 (86%) tumors were scored as 0, 4 (4%) as 1+, 6 (6%) as 2+, and 5 (5%) as 3+ by IHC and 12 (12%) showed ERBB2 amplification by FISH. The concordance rate between IHC and FISH of EGFR was 98.1% (P<0.001) and of ERBB2 was 93.3% (P<0.001). Most tumors with ERBB2 amplification were tubular adenocarcinoma (N=11, P=0.02) and Lauren intestinal type (N=12, P=0.016). There was no statistically significant difference between EGFR amplification and tumor classification. EGFR amplification had significant impact on overall survival in certain subgroups: early stages (stages I and II) (P<0.001), well to moderately differentiated tumors (P=0.001), and fewer regional lymph node metastasis (pN1) (P=0.001). ERBB2 status had little predictive value on overall survival. In conclusion, this study showed ERBB2 amplification was significantly observed in tubular adenocarcinoma and Lauren intestinal-type carcinoma. The IHC scoring criteria for ERBB2 can be applied to EGFR. EGFR amplification had associated with poor prognosis in early, well to moderately differentiated carcinoma. FAU - Liao, Jia-Bin AU - Liao JB AD - Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital. AD - Centre for General Education, Yuh-Ing Junior College of Health Care and Management. AD - Kaohsiung Medical University. FAU - Lee, Huai-Pao AU - Lee HP AD - Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital. AD - Department of Nursing, Meiho University, Kaohsiung, Taiwan. FAU - Fu, Hsiao-Ting AU - Fu HT AD - Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital. FAU - Lee, Herng-Sheng AU - Lee HS AD - Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Appl Immunohistochem Mol Morphol JT - Applied immunohistochemistry & molecular morphology : AIMM JID - 100888796 RN - EC 2.7.10.1 (EGFR protein, human) RN - EC 2.7.10.1 (ERBB2 protein, human) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Adenocarcinoma/*diagnosis/mortality/pathology MH - Aged MH - Aged, 80 and over MH - Cell Differentiation MH - ErbB Receptors/genetics/metabolism MH - Esophagogastric Junction/metabolism/*pathology MH - Female MH - Follow-Up Studies MH - Gene Amplification MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Male MH - Middle Aged MH - Neoplasm Staging MH - Predictive Value of Tests MH - Prognosis MH - Receptor, ErbB-2/*metabolism MH - Stomach Neoplasms/*diagnosis/mortality/pathology MH - Survival Analysis EDAT- 2016/10/19 06:00 MHDA- 2019/06/25 06:00 CRDT- 2016/10/19 06:00 PHST- 2016/10/19 06:00 [pubmed] PHST- 2019/06/25 06:00 [medline] PHST- 2016/10/19 06:00 [entrez] AID - 10.1097/PAI.0000000000000437 [doi] PST - ppublish SO - Appl Immunohistochem Mol Morphol. 2018 Jul;26(6):374-382. doi: 10.1097/PAI.0000000000000437.