Quantitative real-time polymerase chain reaction is an alternative method for the detection of HER-2 amplification in formalin-fixed paraffin-embedded breast cancer samples

被引:0
作者
Pu, Tianjie [1 ,2 ]
Guo, Peng [1 ]
Qiu, Yan [1 ,2 ]
Chen, Shinan [1 ]
Yang, Libo [1 ,2 ]
Sun, Linyong [2 ]
Ye, Feng [1 ]
Bu, Hong [1 ,2 ]
机构
[1] Sichuan Univ, West China Hosp, Pathol Lab, Chengdu 610041, Sichuan, Peoples R China
[2] Sichuan Univ, West China Hosp, Dept Pathol, Chengdu 610041, Sichuan, Peoples R China
来源
INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY | 2015年 / 8卷 / 09期
基金
中国国家自然科学基金;
关键词
HER-2 copy number variation; breast neoplasm; quantitative real-time polymerase chain reaction; IHC; FISH; delayed formalin-fixed; IN-SITU HYBRIDIZATION; GENE AMPLIFICATION; COPY-NUMBER; ADJUVANT CHEMOTHERAPY; PROTEIN EXPRESSION; AMERICAN-SOCIETY; POOR-PROGNOSIS; IMMUNOHISTOCHEMISTRY; RECEPTOR; PCR;
D O I
暂无
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Fluorescent in situ hybridization (FISH) and immunohistochemistry (IHC) are the most common methods that are used to quantify HER-2 gene and protein levels, respectively, in human breast cancer. However, due to bad sample quality, some samples are unable to be subjected to a FISH assay. We evaluated 71 formalin-fixed paraffin-embedded (FFPE) breast carcinoma specimens by quantitative real-time polymerase chain reaction (qPCR), IHC, and FISH. We also performed qPCR and FISH assays on delayed formalin-fixed (DDF) samples. The qPCR results were in complete concordance with the results of IHC and FISH. In regards to the DDF samples, the HER-2 fluorescent signal seemed decayed compared with that of the DDF samples after 1 h. However, the qPCR method still works well up to 12 hours. Our results indicated that qPCR was obviously superior to FISH in cases that were not fixed in a reasonable amount of time. However, qPCR can be an alternative method by which to perform HER2 amplification assays in breast cancer.
引用
收藏
页码:10565 / 10574
页数:10
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