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Immunohistochemical validation of multiple phospho-specific epitopes for estrogen receptor alpha (ERalpha) in tissue microarrays of ERalpha positive human breast carcinomas.

Abstract：

:Estrogen receptor alpha (ERalpha) activity is regulated by phosphorylation at several sites. Recently several antibodies specific for individual phosphorylated sites within ERalpha have became available. Such antibodies potentially provide invaluable tools to gain insight into the relevance in vivo of phosphorylated ERalpha in human breast tumors. However, validation of these antibodies for immunohistochemistry in particular is necessary in the first instance. In this study we have investigated the usefulness of several antibodies generated to specific phosphorylated sites within ERalpha for immunohistochemistry of formalin-fixed, paraffin-embedded human breast cancer biopsy samples. As well, these data demonstrate for the first time, the detection of multiple phosphorylated ERalpha forms in breast cancer (P-S104/106-ERalpha, P-S118-ERalpha, P-S167-ERalpha, P-S282-ERalpha, P-S294-ERalpha, P-T311-ERalpha, and P-S559-ERalpha) suggesting the possibility that profiling of phosphorylated ERalpha isoforms might be useful in selecting subgroups of breast cancer patients that would benefit from endocrine therapy.

journal_name

Breast Cancer Res Treat

journal_title

Breast cancer research and treatment

authors

Skliris GP,Rowan BG,Al-Dhaheri M,Williams C,Troup S,Begic S,Parisien M,Watson PH,Murphy LC

doi

10.1007/s10549-008-0267-z

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

443-53

issue

3

eissn

0167-6806

issn

1573-7217

journal_volume

118

pub_type

杂志文章

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