HER2 expression in gastric cancer: Rare, heterogeneous and of no prognostic value - conclusions from 924 cases of two independent series
| Autor: | Grabsch, H, Sivakumar, S, Gray, S, Gabbert, HE, Müller, W |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Cancer Research Survival Receptor ErbB-2 lcsh:RC254-282 Pathology and Forensic Medicine Cohort Studies Young Adult Stomach Neoplasms Germany HER2 Humans lcsh:QH573-671 skin and connective tissue diseases neoplasms Aged Aged 80 and over lcsh:Cytology Cell Biology General Medicine Middle Aged lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens Prognosis Gene Expression Regulation Neoplastic England immunohistochemistry Molecular Medicine Female Other Gastric cancer |
| Zdroj: | Cellular Oncology : the Official Journal of the International Society for Cellular Oncology Cellular Oncology, Vol 32, Iss 1-2, Pp 57-65 (2010) |
| Popis: | Background: Patients with gastric cancer (GC) have a poor survival and biologicals such as Trastuzumab have not been used routinely in these patients. Existing data on HER2 expression and its clinical relevance in GC are still limited and controversial.Methods: HER2 expression was investigated by immunohistochemistry in 418 GC from Germany and 506 GC from England. Results were compared to clinicopathological parameters and patient survival.Results: Less than 10% of all GC showed HER2 expression in more than 5% of tumour cells and 91% of these were intestinal type GC. In both series, no relationship was found between HER2 expression, patient survival or TNM stage. Marked intratumoural heterogeneity was noted.Conclusions: This is the largest study to date demonstrating in two independent series that HER2 expression is not related to gastric cancer patient prognosis and that only a very small subgroup of intestinal type GC may potentially respond to HER2 targeting therapy. Due to prominent intratumoural heterogeneity of HER2 expression in GC, HER2 testing in endoscopic biopsies before treatment will be prone to false negative results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|