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Advanced Insights into Competitive Endogenous RNAs (ceRNAs) Regulated Pathogenic Mechanisms in Metastatic
Amal Qattan1,2, Taher Al-Tweigeri3, Kausar Suleman3
1Department of Molecular Oncology, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia.
Abstract:
Triple-negative breast cancer is aggressive and challenging to treat because of a lack of targets and heterogeneity among tumors. A paramount factor in the mortality from breast cancer is metastasis, which is driven by genetic and phenotypic alterations that drive epithelial-mesenchymal transition, stemness, survival, migration and invasion. Many genetic and epigenetic mechanisms have been identified in triple-negative breast cancer that drive these metastatic phenotypes; however, this knowledge has not yet led to the development of effective drugs for metastatic triple-negative breast cancer (mTNBC). One that may not have received enough attention in the literature is post-translational regulation of broad sets of cancer-related genes through inhibitory microRNAs and the complex competitive endogenous RNA (ceRNA) regulatory networks they are influenced by. This field of study and the resulting knowledge regarding alterations in these networks is coming of age, enabling translation into clinical benefit for patients. Herein, we review metastatic triple-negative breast cancer (mTNBC), the role of ceRNA network regulation in metastasis (and therefore clinical outcomes), potential approaches for therapeutic exploitation of these alterations, knowledge gaps and future directions in the field.
Insights
Metastatic triple-negative breast cancer (mTNBC) is aggressive and hard to treat. This review explores how microRNAs and competitive endogenous RNA (ceRNA) networks drive mTNBC metastasis, offering therapeutic insights.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Triple-negative breast cancer (TNBC) is an aggressive subtype with limited therapeutic targets and significant heterogeneity.
- Metastasis, driven by epithelial-mesenchymal transition and stemness, is a major cause of mortality in TNBC.
- Current treatments for metastatic TNBC (mTNBC) are insufficient, highlighting the need for novel therapeutic strategies.
Purpose of the Study:
- To review the role of post-translational regulation, specifically microRNAs and competitive endogenous RNA (ceRNA) networks, in mTNBC metastasis.
- To explore potential therapeutic strategies targeting ceRNA networks in mTNBC.
- To identify knowledge gaps and future research directions in the field of mTNBC metastasis.
Main Methods:
- Literature review focusing on studies investigating microRNA and ceRNA regulatory networks in TNBC metastasis.
- Analysis of genetic and epigenetic mechanisms contributing to metastatic phenotypes in mTNBC.
- Synthesis of current knowledge on the clinical implications of ceRNA alterations in mTNBC.
Main Results:
- Alterations in microRNA and ceRNA networks are implicated in driving metastatic phenotypes in TNBC, including epithelial-mesenchymal transition, stemness, migration, and invasion.
- These regulatory networks represent a promising avenue for developing novel therapeutic interventions for mTNBC.
- Despite advances, significant knowledge gaps remain regarding the precise mechanisms and clinical translation of targeting ceRNA networks.
Conclusions:
- Dysregulation of microRNA and ceRNA networks plays a critical role in mTNBC progression and metastasis.
- Targeting these networks offers a potential therapeutic window for improving clinical outcomes in mTNBC patients.
- Further research is needed to fully elucidate these complex regulatory mechanisms and translate them into effective clinical applications.
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