Related Experiment Video
Updated: Jun 8, 2026
06:01
Clinicopathological Analysis of miRNA Expression in Breast Cancer Tissues by Using miRNA In Situ Hybridization
Published on: June 7, 2016
6.7K
Clinicogenomic Characterization of Inflammatory Breast Cancer.
Nolan Priedigkeit1,2,3,4, Beth Harrison2,4,5, Robert Shue1,3
1Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.
Summary
Inflammatory breast cancer (IBC) shows a significant enrichment of TP53 mutations, a key driver of this aggressive disease. Further research is needed to understand IBC biology beyond bulk genome sequencing.
Area of Science:
- Oncology
- Genomics
- Cancer Biology
Background:
- Inflammatory breast cancer (IBC) is a rare and aggressive form of breast cancer with poor outcomes.
- The underlying biological mechanisms of IBC are not well understood.
- Limited large-scale genomic studies directly comparing IBC to non-IBC cases exist.
Purpose of the Study:
- To conduct a comprehensive genomic analysis of inflammatory breast cancer (IBC).
- To compare somatic alterations in IBC with non-IBC.
- To identify genomic features associated with poor outcomes in IBC.
Main Methods:
- Retrospective analysis of 140 IBC patients and 2,317 non-IBC patients.
- Comparison of clinicopathologic data, single nucleotide variants (SNVs), copy number variants (CNVs), and tumor mutational burden (TMB).
- Exploratory survival outcome analysis.
Main Results:
- Frequent somatic alterations in IBC include TP53 (72%), ERBB2 (32%), and PIK3CA (24%).
- TP53 SNVs were significantly enriched in IBC, especially in HER2+ and hormone receptor-positive (HR+) disease.
- TP53, CCND1, and RB1 alterations were associated with worse outcomes in IBC.
Conclusions:
- This study provides a comprehensive genomic resource for metastatic IBC.
- TP53 mutations play a critical role in IBC pathogenesis.
- Distinct genomic differences in IBC are limited, necessitating further investigation beyond bulk sequencing.
More Related Videos
Related Concept Videos
01:33Cancer-Critical Genes I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:33Cancer-Critical Genes I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...