skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: ATM Suppresses SATB1-Induced Malignant Progression in Breast Epithelial Cells

Journal Article · · PLoS ONE
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Life Sciences Division
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Life Sciences Division; Buck Inst. for Research on Aging, Novato, CA (United States)

SATB1 drives metastasis when expressed in breast tumor cells by radically reprogramming gene expression. Here, we show that SATB1 also has an oncogenic activity to transform certain non-malignant breast epithelial cell lines. We studied the non-malignant MCF10A cell line, which is used widely in the literature. We obtained aliquots from two different sources (here we refer to them as MCF10A-1 and MCF10A-2), but found them to be surprisingly dissimilar in their responses to oncogenic activity of SATB1. Ectopic expression of SATB1 in MCF10A-1 induced tumor-like morphology in three dimensional cultures, led to tumor formation in immunocompromised mice, and when injected into tail veins, led to lung metastasis. The number of metastases correlated positively with the level of SATB1 expression. In contrast, SATB1 expression in MCF10A-2 did not lead to any of these outcomes. Yet DNA copy-number analysis revealed that MCF10A-1 is indistinguishable genetically from MCF10A-2. However, gene expression profiling analysis revealed that these cell lines have significantly divergent signatures for the expression of genes involved in oncogenesis, including cell cycle regulation and signal transduction. Above all, the early DNA damage-response kinase, ATM, was greatly reduced in MCF10A-1 cells compared to MCF10A-2 cells. We found the reason for reduction to be phenotypic drift due to long-term cultivation of MCF10A. ATM knockdown in MCF10A-2 and two other non-malignant breast epithelial cell lines, 184A1 and 184B4, enabled SATB1 to induce malignant phenotypes similar to that observed for MCF10A-1. These data indicate a novel role for ATM as a suppressor of SATB1-induced malignancy in breast epithelial cells, but also raise a cautionary note that phenotypic drift could lead to dramatically different functional outcomes.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1627569
Journal Information:
PLoS ONE, Vol. 7, Issue 12; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

References (66)

Epithelial–mesenchymal transitions in tumour progression journal June 2002
Expression patterns of theATM gene in mammary tissues and their associations with breast cancer survival journal May 2007
Reversion of the Malignant Phenotype of Human Breast Cells in Three-Dimensional Culture and In Vivo by Integrin Blocking Antibodies journal April 1997
Delineating Genetic Alterations for Tumor Progression in the MCF10A Series of Breast Cancer Cell Lines journal February 2010
A telomere-dependent DNA damage checkpoint induced by prolonged mitotic arrest journal March 2012
Three-dimensional culture models of normal and malignant breast epithelial cells journal March 2007
Paclitaxel (Taxol) journal April 1995
p53 Mutations in human immortalized epithelial cell lines journal January 1993
Modes of p53 Regulation journal May 2009
β4 integrin-dependent formation of polarized three-dimensional architecture confers resistance to apoptosis in normal and malignant mammary epithelium journal September 2002
Aurora-B Mediated ATM Serine 1403 Phosphorylation Is Required for Mitotic ATM Activation and the Spindle Checkpoint journal November 2011
RPA2 Is a Direct Downstream Target for ATR to Regulate the S-phase Checkpoint journal December 2006
FOXP3 and FOXP3-regulated microRNAs suppress SATB1 in breast cancer cells journal July 2011
Cell-cycle checkpoints and cancer journal November 2004
SATB1 Defines the Developmental Context for Gene Silencing by Xist in Lymphoma and Embryonic Cells journal April 2009
The ultrastructure of MCF-10A acini journal April 2006
Overexpression and involvement of special AT-rich sequence binding protein 1 in multidrug resistance in human breast carcinoma cells journal January 2010
BRCA2 Fine-Tunes the Spindle Assembly Checkpoint through Reinforcement of BubR1 Acetylation journal February 2012
Malignant MCF10CA1 Cell Lines Derived from Premalignant Human Breast Epithelial MCF10AT Cells journal January 2001
Genome organizing function of SATB1 in tumor progression journal April 2013
SATB1 is an independent prognostic marker for gastric cancer in a Chinese population journal September 2010
Morphogenesis and oncogenesis of MCF-10A mammary epithelial acini grown in three-dimensional basement membrane cultures journal July 2003
Increasingly transformed MCF-10A cells have a progressively tumor-like phenotype in three-dimensional basement membrane culture journal January 2009
Persistent DNA damage signalling triggers senescence-associated inflammatory cytokine secretion journal July 2009
p63 regulates Satb1 to control tissue-specific chromatin remodeling during development of the epidermis journal September 2011
Dose-dependent induction of distinct phenotypic responses to Notch pathway activation in mammary epithelial cells journal March 2010
Torsional stress stabilizes extended base unpairing in suppressor sites flanking immunoglobulin heavy chain enhancer journal October 1990
Breast cancer-specific gene 1 interacts with the mitotic checkpoint kinase BubR1 journal October 2003
Characterization of epithelial phenotypes in mortal and immortal human breast cells journal February 1992
SATB1 targets chromatin remodelling to regulate genes over long distances journal October 2002
Modelling glandular epithelial cancers in three-dimensional cultures journal September 2005
Clinicopathologic and prognostic significance of SATB1 in cutaneous malignant melanoma journal October 2011
SATB1 packages densely looped, transcriptionally active chromatin for coordinated expression of cytokine genes journal October 2006
The organizing principle: microenvironmental influences in the normal and malignant breast journal December 2002
Involvement of NF-κB/miR-448 regulatory feedback loop in chemotherapy-induced epithelial–mesenchymal transition of breast cancer cells journal August 2010
The Role of SATB1 in Breast Cancer Pathogenesis journal August 2010
DNA-PK, ATM and ATR as sensors of DNA damage: variations on a theme? journal April 2001
Oncogenic growth factor receptors: implications for signal transduction therapy journal August 2004
Ataxia Telangiectasia Mutated (ATM) Inhibition Transforms Human Mammary Gland Epithelial Cells journal April 2010
Decoy-DNA Against Special AT-Rich Sequence Binding Protein 1 Inhibits the Growth and Invasive Ability of Human Breast Cancer journal April 2011
The mRNA expression of SATB1 and SATB2 in human breast cancer journal January 2009
SATB1 reprogrammes gene expression to promote breast tumour growth and metastasis journal March 2008
Linking the Cellular Functions of BRCA Genes to Cancer Pathogenesis and Treatment journal February 2009
Nontransgenic models of breast cancer journal October 2000
The Genetic Defect in Ataxia-Telangiectasia journal April 1997
Gradual Phenotypic Conversion Associated with Immortalization of Cultured Human Mammary Epithelial Cells journal December 1997
Metastasis: a therapeutic target for cancer journal February 2008
Identification of genes that regulate epithelial cell migration using an siRNA screening approach journal August 2008
Chromosome analyses of human mammary epithelial cells at stages of chemical-induced transformation progression to immortality journal February 1989
SAT in Silence journal April 2009
Satb1 Ablation Alters Temporal Expression of Immediate Early Genes and Reduces Dendritic Spine Density during Postnatal Brain Development journal November 2011
A tissue-specific MAR/SAR DNA-binding protein with unusual binding site recognition journal August 1992
Synucleins are expressed in the majority of breast and ovarian carcinomas and in preneoplastic lesions of the ovary journal May 2000
Epithelial-Mesenchymal Transition in Breast Cancer Relates to the Basal-like Phenotype journal February 2008
The MCF10 Model of Breast Tumor Progression journal August 2021
Expression of SATB1 and heparanase in gastric cancer and its relationship to clinicopathologic features: SATB1 AND HEPARANASE IN GASTRIC CANCER journal September 2010
SATB1 gene expression and breast cancer prognosis journal August 2011
Interaction with basement membrane serves to rapidly distinguish growth and differentiation pattern of normal and malignant human breast epithelial cells. journal October 1992
p53, the Cellular Gatekeeper for Growth and Division journal February 1997
Breast cancer: origins and evolution journal November 2007
Global Regulator SATB1 Recruits β-Catenin and Regulates TH2 Differentiation in Wnt-Dependent Manner journal January 2010
Biological significance of unwinding capability of nuclear matrix-associating DNAs journal January 1992
Tissue-specific nuclear architecture and gene expession regulated by SATB1 journal April 2003
Cancer initiation and progression: Involvement of stem cells and the microenvironment journal June 2007
Unwind and slow down: checkpoint activation by helicase and polymerase uncoupling journal May 2005
The MAR-binding protein SATB1 orchestrates temporal and spatial expression of multiple genes during T-cell development journal March 2000

Cited By (6)

SATB1 collaborates with loss of p16 in cellular transformation text January 2013
LOXL2 induces aberrant acinar morphogenesis via ErbB2 signaling journal August 2013
Interleukin 6 trigged ataxia-telangiectasia mutated activation facilitates lung cancer metastasis via MMP-3/MMP-13 up-regulation journal October 2015
Effect of SATB1 silencing on the proliferation, invasion and apoptosis of TE-1 esophageal cancer cells journal March 2017
Wnt/β-catenin signaling regulated SATB1 promotes colorectal cancer tumorigenesis and progression journal July 2015
Bridging the boundaries between scientists and clinicians-mechanistic hypotheses and patient stories in risk assessment of drugs: Bridging boundaries between scientists and clinicians journal August 2016