Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Evidence for accelerated aging in mammary epithelia of women carrying germline BRCA1 or BRCA2 mutations

Journal Article · · Nature Aging
 [1];  [2];  [3];  [2];  [2];  [2];  [2];  [4];  [4];  [5];  [2];  [6]
  1. City of Hope, Duarte, CA (United States); Al-Quds University, Jerusalem (Palestine)
  2. City of Hope, Duarte, CA (United States)
  3. City of Hope, Duarte, CA (United States); Univ. of California, San Francisco, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  4. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  5. Univ. of California, Irvine, CA (United States)
  6. City of Hope, Duarte, CA (United States); Univ. of Bergen (Norway)
During aging in the human mammary gland, luminal epithelial cells lose lineage fidelity by expressing markers normally expressed in myoepithelial cells. We hypothesize that loss of lineage fidelity is a general manifestation of epithelia that are susceptible to cancer initiation. In the present study, we show that histologically normal breast tissue from younger women who are susceptible to breast cancer, as a result of harboring a germline mutation in BRCA1, BRCA2 or PALB2 genes, exhibits hallmarks of accelerated aging. These include proportionately increased luminal epithelial cells that acquired myoepithelial markers, decreased proportions of myoepithelial cells and a basal differentiation bias or failure of differentiation of cKit+ progenitors. High-risk luminal and myoepithelial cells are transcriptionally enriched for genes of the opposite lineage, inflammatory- and cancer-related pathways. We have identified breast-aging hallmarks that reflect a convergent biology of cancer susceptibility, regardless of the specific underlying genetic or age-dependent risk or the associated breast cancer subtype.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2469719
Journal Information:
Nature Aging, Journal Name: Nature Aging Journal Issue: 9 Vol. 1; ISSN 2662-8465
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Age at any birth and breast cancer risk journal June 1983
The Cell of Origin of BRCA1 Mutation-associated Breast Cancer: A Cautionary Tale of Gene Expression Profiling journal February 2011
Towards an improved serum-free, chemically defined medium for long-term culturing of cerebral cortex tissue journal September 1984
The myoepithelial defense: a host defense against cancer journal January 1997
Declining cellular fitness with age promotes cancer initiation by selecting for adaptive oncogenic mutations journal January 2008
Tissue aging: the integration of collective and variant responses of cells to entropic forces over time journal October 2018
Collective Invasion in Breast Cancer Requires a Conserved Basal Epithelial Program journal December 2013
Age-Related Dysfunction in Mechanotransduction Impairs Differentiation of Human Mammary Epithelial Progenitors journal June 2014
High-Dimensional Phenotyping Identifies Age-Emergent Cells in Human Mammary Epithelia journal April 2018
Regulation of Cellular Heterogeneity and Rates of Symmetric and Asymmetric Divisions in Triple-Negative Breast Cancer journal September 2018
AXL Is a Driver of Stemness in Normal Mammary Gland and Breast Cancer journal November 2020
An epigenetic perspective on tumorigenesis: Loss of cell identity, enhancer switching, and NamiRNA network journal August 2019
Genetic Predisposition Directs Breast Cancer Phenotype by Dictating Progenitor Cell Fate journal February 2011
Aberrant luminal progenitors as the candidate target population for basal tumor development in BRCA1 mutation carriers journal August 2009
Pregnancy-associated breast cancer and metastasis journal April 2006
BRCA1 and BRCA2: different roles in a common pathway of genome protection journal December 2011
Perturbed myoepithelial cell differentiation in BRCA mutation carriers and in ductal carcinoma in situ journal September 2019
Gene set enrichment analysis: A knowledge-based approach for interpreting genome-wide expression profiles journal September 2005
Myoepithelial cells are a dynamic barrier to epithelial dissemination journal July 2018
clusterProfiler: an R Package for Comparing Biological Themes Among Gene Clusters journal May 2012
RSeQC: quality control of RNA-seq experiments journal June 2012
Trimmomatic: a flexible trimmer for Illumina sequence data journal April 2014
Germline BRCA1 Mutations and a Basal Epithelial Phenotype in Breast Cancer journal October 2003
Evidence for a Crossover in Breast Cancer risk Factors1 journal November 1982
Non-BRCA1/2 Breast Cancer Susceptibility Genes: A New Frontier with Clinical Consequences for Plastic Surgeons journal November 2017
Mammary stem cells and the differentiation hierarchy: current status and perspectives journal June 2014
Epithelial Plasticity: A Common Theme in Embryonic and Cancer Cells journal November 2013
Impairment of BRCA1-Related DNA Double-Strand Break Repair Leads to Ovarian Aging in Mice and Humans journal February 2013
Molecular Distinctions between Stasis and Telomere Attrition Senescence Barriers Shown by Long-term Culture of Normal Human Mammary Epithelial Cells journal September 2009
Accumulation of Multipotent Progenitors with a Basal Differentiation Bias during Aging of Human Mammary Epithelia journal May 2012
Single-Cell RNA Sequencing Reveals the Cellular Origin and Evolution of Breast Cancer in BRCA1 Mutation Carriers journal March 2021
Mechanisms of BRCA1 Tumor Suppression journal August 2012
Breast Cancer beyond the Age of Mutation journal November 2015
Myoepithelial cells: good fences make good neighbors journal July 2005
The importance of being a myoepithelial cell journal December 2002
Differential expression analysis for sequence count data journal October 2010
TopHat2: accurate alignment of transcriptomes in the presence of insertions, deletions and gene fusions journal January 2013
Moderated estimation of fold change and dispersion for RNA-seq data with DESeq2 journal December 2014
Ovarian Aging in Women With BRCA Germline Mutations journal August 2017
Evidence for Phenotypic Plasticity in Aggressive Triple-Negative Breast Cancer: Human Biology Is Recapitulated by a Novel Model System journal September 2012
Different culture media modulate growth, heterogeneity, and senescence in human mammary epithelial cell cultures journal October 2018
Reviewing the characteristics of BRCA and PALB2-related cancers in the precision medicine era journal January 2019
Age-related gene expression in luminal epithelial cells is driven by a microenvironment made from myoepithelial cells journal October 2017
Association of BRCA Mutation Types, Imaging Features, and Pathologic Findings in Patients With Breast Cancer With BRCA1 and BRCA2 Mutations journal October 2017
BRCA1/2 mutations and triple negative breast cancers journal March 2011
Processing of Human Reduction Mammoplasty and Mastectomy Tissues for Cell Culture journal January 2013

Similar Records

Genetic heterogeneity in hereditary breast cancer: Role of BRCA1 and BRCA2
Journal Article · Sun Sep 01 00:00:00 EDT 1996 · American Journal of Human Genetics · OSTI ID:478504

Breast-Specific Molecular Clocks Comprised of ELF5 Expression and Promoter Methylation Identify Individuals Susceptible to Cancer Initiation
Journal Article · Wed Jun 16 20:00:00 EDT 2021 · Cancer Prevention Research · OSTI ID:2470984

Related Subjects