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Updated: May 29, 2026

Clinicopathological Analysis of miRNA Expression in Breast Cancer Tissues by Using miRNA In Situ Hybridization
Published on: June 7, 2016
Implication of miRNA in the diagnosis and treatment of breast cancer
Carlos A Castañeda1, María Teresa Agullo-Ortuño, Juan Angel Fresno Vara
1Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú
Abstract:
Breast cancer (BC) comprises a group of different diseases characterized by changes in tissue structure and gene expression. Recent advances in molecular biology have shed new light on the participation of genes and their products in the biology of BC. MicroRNAs (miRNAs) are small noncoding endogenous RNA molecules that appear to modulate the expression of more than a third of human genes, and their implications in cancer have grasped the attention of the scientific community. Recently, several studies have described the association between miRNA expression profiles and pathological and clinical BC features. Moreover, these molecules represent a new type of molecular marker that can identify prognosis and guide the management of BC patients. With the increasing understanding of miRNA networks and their impact in the biology of BC, as well as the development of viable strategies to modulate specific miRNAs, we could improve the treatment of this disease.
Insights
MicroRNAs (miRNAs) are key regulators in breast cancer (BC) biology, influencing gene expression and disease progression. Understanding miRNA profiles can improve BC prognosis and treatment strategies.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Breast cancer (BC) is a complex disease involving alterations in tissue structure and gene expression.
- MicroRNAs (miRNAs) are small noncoding RNAs that regulate a significant portion of human genes.
- The role of miRNAs in cancer, particularly BC, is a growing area of scientific interest.
Purpose of the Study:
- To explore the association between miRNA expression profiles and BC characteristics.
- To highlight miRNAs as potential biomarkers for BC prognosis and patient management.
- To discuss the potential of miRNA-targeted therapies for improving BC treatment.
Main Methods:
- Review of recent studies on miRNA expression in breast cancer.
- Analysis of the link between miRNA profiles and pathological/clinical BC features.
- Investigation of miRNA networks and their impact on BC biology.
Main Results:
- miRNA expression profiles are associated with pathological and clinical features of BC.
- miRNAs show potential as molecular markers for predicting BC prognosis.
- Understanding miRNA networks offers insights into BC pathogenesis.
Conclusions:
- miRNAs play a crucial role in the molecular landscape of breast cancer.
- miRNA expression profiling holds promise for personalized BC management.
- Targeting specific miRNAs may lead to novel therapeutic strategies for BC.
Related Concept Videos
MicroRNAs
MicroRNAs
lncRNA - Long Non-coding RNAs

