The age variation of HER2 immunohistochemistry positive rate in biopsy specimens of gastric cancer.
Pathol Res Pract
; 216(4): 152882, 2020 Apr.
Article
en En
| MEDLINE
| ID: mdl-32113795
ABSTRACT
AIMS:
The aim of this study was to explore HER2 status and characteristics in biopsy specimens of gastric cancer (GC) in Chinese population. METHODS ANDRESULTS:
A total of 27,787 biopsy specimens of GC from 103 hospitals were obtained. Immunohistochemistry (IHC) staining of HER2 was performed. Overall HER2 IHC positive rate was 11.2 %. HER2 positive rate elevated with the increase of age in total patients and both genders. The rates were 7.1 %, 8.1 %, 9.0 %, 10.9 %, 11.8 %, 12.6 %, and 12.1 % when patient age was ≤30, 31-40, 41-50, 51-60, 61-70, 71-80, and >80, respectively (Pâ¯<â¯0.001). In male, the rates were 6.5 %, 8.4 %, 9.6 %, 11.5 %, 12.4 %, 13.3 %, and 12.1 % (Pâ¯<â¯0.001). In female, the rates were 7.4 %, 7.9 %, 8.0 %, 9.0 %, 9.6 %, 10.6 %, and 11.9 % (Pâ¯=â¯0.128). The changes in male were more dramatic than in female (Pâ¯<â¯0.001). Furthermore, the proportion of the intestinal type GCs increased with age in total patients and both genders (Pâ¯<â¯0.001), and in male the changes were more dramatic (Pâ¯<â¯0.001). While the proportion of the diffuse type showed the opposite tendency to that of the intestinal type (Pâ¯<â¯0.001). HER2 IHC positive rate showed a positive correlation with the proportion of the intestinal type (r=0.986, Pâ¯<â¯0.001), and a negative correlation with the proportion of the diffuse type (r=0.984, Pâ¯<â¯0.001).CONCLUSIONS:
The HER2 IHC positive rate showed age variation in biopsy specimens of GC. In male the variation was more dramatic than in female. The variation of HER2 positive rate can be attributed to the age variation of the Lauren subtypes.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias Gástricas
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Adenocarcinoma
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Biomarcadores de Tumor
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Receptor ErbB-2
Tipo de estudio:
Observational_studies
Límite:
Adolescent
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Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Pathol Res Pract
Año:
2020
Tipo del documento:
Article
País de afiliación:
China