HER2 Protein Overexpression, mRNA Expression, and DNA Amplification Across Solid Tumors: Comparison of Next-Generation Sequencing-Based Assays With Immunohistochemistry.

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Title: HER2 Protein Overexpression, mRNA Expression, and DNA Amplification Across Solid Tumors: Comparison of Next-Generation Sequencing-Based Assays With Immunohistochemistry.
Authors: Nagamine M; Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Japan., Fujisawa T; Translational Research Support Office, National Cancer Center Hospital East, Kashiwa, Japan.; Department of Head and Neck Medical Oncology, National Cancer Center Hospital East, Kashiwa, Japan., Sakamoto N; Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Japan.; Division of Pathology, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Kashiwa, Japan., Nakamura Y; Translational Research Support Office, National Cancer Center Hospital East, Kashiwa, Japan.; Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan., Kadowaki S; Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan., Ueno M; Department of Gastroenterology, Kanagawa Cancer Center, Yokohama, Japan., Boku S; Cancer Treatment Center, Kansai Medical University Hospital, Osaka, Japan., Komatsu Y; Division of Cancer Chemotherapy, Hokkaido University Hospital Cancer Center, Sapporo, Japan., Oki E; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan., Makiyama A; Cancer Center, Gifu University Hospital, Gifu, Japan., Nonomura N; Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan., Morizane C; Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan., Watari H; Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan., Okano S; Department of Head and Neck Medical Oncology, National Cancer Center Hospital East, Kashiwa, Japan., Iwata H; Department of Advanced Clinical Research and Development, Nagoya City University, Nagoya, Japan., Namikawa K; Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan., Hatanaka Y; Center for Development of Advanced Diagnostics, Hokkaido University Hospital, Sapporo, Japan., Hatanaka KC; Center for Development of Advanced Diagnostics, Hokkaido University Hospital, Sapporo, Japan., Taguchi K; Department of Pathology, NHO Kyushu Cancer Center, Fukuoka, Japan., Spetzler D; Caris Life Sciences, Phoenix, AZ., Radovich M; Caris Life Sciences, Phoenix, AZ., Magee D; Caris Life Sciences, Phoenix, AZ., Yoshino T; Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan., Oberley M; Caris Life Sciences, Phoenix, AZ., Kuwata T; Department of Genetic Medicine and Services, National Cancer Center Hospital East, Kashiwa, Japan.
Source: JCO precision oncology [JCO Precis Oncol] 2026 Jan; Vol. 10, pp. e2500413. Date of Electronic Publication: 2026 Jan 21.
Publication Type: Journal Article; Comparative Study
Journal Info: Publisher: American Society of Clinical Oncology Country of Publication: United States NLM ID: 101705370 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2473-4284 (Electronic) Linking ISSN: 24734284 NLM ISO Abbreviation: JCO Precis Oncol Subsets: MEDLINE
Database: MEDLINE Ultimate
Description
ISSN:2473-4284
DOI:10.1200/PO-25-00413