Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients.

Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients. Research Abstract Details 

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Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients. Abstract Text:

David G Hicks,Brian J Yoder,Sarah Short,Shannon Tarr,Nichole Prescott,Joseph P Crowe,Andrea E Dawson,G Thomas Budd,Steven Sizemore,Muzaffer Cicek,Toni K Choueiri,Raymond R Tubbs,Daniel Gaile,Norma Nowak,Mary Ann Accavitti-Loper,Andra R Frost,Danny R Welch,Graham Casey,

PURPOSE: This study aims to determine the effect of loss of breast cancer metastasis suppressor 1 (BRMS1) protein expression on disease-free survival in breast cancer patients stratified by estrogen receptor (ER), progesterone receptor (PR), or HER2 status, and to determine whether loss of BRMS1 protein expression correlated with genomic copy number changes. EXPERIMENTAL DESIGN: A tissue microarray immunohistochemical analysis was done on tumors of 238 newly diagnosed breast cancer patients who underwent surgery at the Cleveland Clinic between January 1, 1995 and December 31, 1996, and a comparison was made with 5-year clinical follow-up data. Genomic copy number changes were determined by array-based comparative genomic hybridization in 47 breast cancer cases from this population and compared with BRMS1 staining. RESULTS: BRMS1 protein expression was lost in nearly 25% of cases. Patients with tumors that were PR negative (P=0.006) or HER2 positive (P=0.039) and <50 years old at diagnosis (P=0.02) were more likely to be BRMS1 negative. No overall correlation between BRMS1 staining and disease-free survival was observed. A significant correlation, however, was seen between loss of BRMS1 protein expression and reduced disease-free survival when stratified by either loss of ER (P=0.008) or PR (P=0.029) or HER2 overexpression (P=0.026). Overall, there was poor correlation between BRMS1 protein staining and copy number status. CONCLUSIONS: These data suggest a mechanistic relationship between BRMS1 expression, hormone receptor status, and HER2 growth factor. BRMS1 staining could potentially be used in patient stratification in conjunction with other prognostic markers. Further, mechanisms other than genomic deletion account for loss of BRMS1 gene expression in breast tumors.

Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients. Publishing Authors By Initials

DG Hicks,BJ Yoder,S Short,S Tarr,N Prescott,JP Crowe,AE Dawson,GT Budd,S Sizemore,M Cicek,TK Choueiri,RR Tubbs,D Gaile,N Nowak,MA Accavitti-Loper,AR Frost,DR Welch,G Casey,

For similar proteins: receptors, cytoplasmic and nuclear: receptors, steroid: receptors, progesterone research abstracts see: proteins: receptors, cytoplasmic and nuclear: receptors, steroid: receptors, progesterone research

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Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Clinical cancer research : an official journal of

VOLUME: 12

Page Numbers: 6702-8

Journal Abbreviation: Clin. Cancer Res.

ISSN: 1078-0432

DAY: 15

MONTH: Nov

YEAR: 2006

Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9502500

Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients. Keywords Mesh Terms:

KEYWORDS: Receptors, Progesterone

MESH TERMS: metabolism

Chemical & Substance for Abstract: Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients. Information

Substance Name: Receptor, erbB-2

Registry Number: EC 2.7.1.112

Grant and Affiliation Information for Loss of breast cancer metastasis suppressor 1 protein expression predicts reduced disease-free survival in subsets of breast cancer patients.

AFFILIATION: Department of Clinical and Anatomic Pathology, General Surgery-Breast Center, Lerner Research Institute, The Cleveland Clinic, Cleveland, Ohio 44195, USA.

Country: United States

AGENCY: United States NCI

GRANT: CA89019

ACRONYM: CA

MEDLINETA: Clin Cancer Res

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