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Title: Genomic analysis of estrogen cascade reveals histone variant H2A.Z associated with breast cancer progression

Journal Article · · Molecular Systems Biology
DOI:https://doi.org/10.1038/msb.2008.25· OSTI ID:1623789
 [1];  [2];  [3];  [4];  [4];  [1];  [3];  [3];  [5];  [6];  [6];  [5];  [7];  [3]
  1. Univ. of Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Joint Inst. for Genomics and Systems Biology Chicago, IL (United States); Yale Univ., New Haven, CT (United States)
  2. Emory Univ., Atlanta, GA (United States)
  3. Univ. of Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Joint Inst. for Genomics and Systems Biology Chicago, IL (United States)
  4. Yale Univ., New Haven, CT (United States)
  5. Univ. of Chicago Medical Center, IL (United States)
  6. Univ. of Chicago Hospitals, IL (United States)
  7. Yale Univ., New Haven, CT (United States). Dept. of Pathology

We demonstrate an integrated approach to the study of a transcriptional regulatory cascade involved in the progression of breast cancer and we identify a protein associated with disease progression. Using chromatin immunoprecipitation and genome tiling arrays, whole genome mapping of transcription factor-binding sites was combined with gene expression profiling to identify genes involved in the proliferative response to estrogen (E2). Using RNA interference, selected ERa and c-MYC gene targets were knocked down to identify mediators of E2-stimulated cell proliferation. Tissue microarray screening revealed that high expression of an epigenetic factor, the E2-inducible histone variant H2A.Z, is significantly associated with lymph node metastasis and decreased breast cancer survival. Detection of H2A.Z levels independently increased the prognostic power of biomarkers currently in clinical use. This integrated approach has accelerated the identification of a molecule linked to breast cancer progression, has implications for diagnostic and therapeutic interventions, and can be applied to a wide range of cancers.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
WM Keck Foundation; Arnold and Mabel Beckman Foundation; National Institutes of Health (NIH); Society for Gynecologic Investigation
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1623789
Journal Information:
Molecular Systems Biology, Vol. 4, Issue 1; ISSN 1744-4292
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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The histone variant H2A.Z in gene regulation journal June 2019
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Every amino acid matters: essential contributions of histone variants to mammalian development and disease journal March 2014
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Gene expression profiling of circulating tumor cells and peripheral blood mononuclear cells from breast cancer patients journal November 2015
Prostate cancer epigenetic biomarkers: next-generation technologies journal May 2014
Estrogenic regulation of S6K1 expression creates a positive regulatory loop in control of breast cancer cell proliferation journal January 2012
The histone variant H2A.Bbd is enriched at sites of DNA synthesis journal April 2014
Cell Cycle and Anti-Estrogen Effects Synergize to Regulate Cell Proliferation and ER Target Gene Expression journal June 2010
The Euchromatic and Heterochromatic Landscapes Are Shaped by Antagonizing Effects of Transcription on H2A.Z Deposition journal October 2009
MYC regulation of a “poor-prognosis” metastatic cancer cell state journal February 2010
Mechanisms of Nucleosome Dynamics In Vivo journal August 2016
NuA4 and SWR1-C: two chromatin-modifying complexes with overlapping functions and componentsThis paper is one of a selection of papers published in this Special Issue, entitled 30th Annual International Asilomar Chromatin and Chromosomes Conference, and has undergone the Journal's usual peer review process. journal October 2009
Two Estrogen Response Element Sequences Near the PCNA Gene Are Not Responsible for Its Estrogen-Enhanced Expression in MCF7 Cells journal October 2008
Integration of mRNA Expression Profile, Copy Number Alterations, and microRNA Expression Levels in Breast Cancer to Improve Grade Definition journal May 2014
A Role for Histone H2B Variants in Endocrine-Resistant Breast Cancer journal June 2015
SUMO modification system facilitates the exchange of histone variant H2A.Z-2 at DNA damage sites journal December 2017
Post-Translational Modifications of H2A Histone Variants and Their Role in Cancer journal February 2018
Characterization of the histone H2A.Z-1 and H2A.Z-2 isoforms in vertebrates journal December 2009
Expression and function of nuclear receptor co-activator 4: evidence of a potential role independent of co-activator activity journal May 2012
Estrogen Induces Global Reorganization of Chromatin Structure in Human Breast Cancer Cells journal December 2014
ANP32E is a histone chaperone that removes H2A.Z from chromatin journal January 2014
Gene dysregulation by histone variant H2A.Z in bladder cancer journal October 2013
Discovering transcription factor regulatory targets using gene expression and binding data journal November 2011
H2A.Z regulates tumorigenesis, metastasis and sensitivity to cisplatin in intrahepatic cholangiocarcinoma journal February 2018
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TOX3 is expressed in mammary ER+ epithelial cells and regulates ER target genes in luminal breast cancer journal January 2015
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