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miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
Nuclear Receptors in Bladder Cancer: Insights into miRNA-Mediated Regulation and Potential Therapeutic Implications
José Javier Flores-Estrada1, Adriana Jiménez1, Georgina Victoria-Acosta1
1División de Investigación, Hospital Juárez De México, Mexico City 07760, Mexico.
Abstract:
Nuclear receptors (NRs) are ligand-activated transcription factors that regulate gene expression and are involved in diverse physiological and pathological processes, including carcinogenesis. In bladder cancer (BCa), dysregulation of NR signaling pathways has been linked to tumor initiation, progression, therapy resistance, and immune evasion. Recent evidence highlights the intricate crosstalk between NRs and microRNAs (miRNAs), which are small non-coding RNAs that posttranscriptionally modulate gene expression. This review provides an integrated overview of the molecular interactions between key NRs and miRNAs in BCa. We investigated how miRNAs regulate NR expression and function and, conversely, how NRs influence miRNA biogenesis, thereby forming regulatory feedback loops that shape tumor behavior. Specific miRNA-NR interactions affecting epithelial-to-mesenchymal transition, metabolic reprogramming, angiogenesis, and chemoresistance are discussed in detail. Additionally, we highlight therapeutic strategies targeting NR-miRNA networks, including selective NR modulators, miRNA mimics and inhibitors, as well as RNA-based combinatorial approaches focusing on their utility as diagnostic biomarkers and personalized treatment targets. Understanding the molecular complexity of NR-miRNA regulation in BCa may open new avenues for improving therapeutic outcomes and advancing precision oncology in urological cancers.
Insights
Nuclear receptors (NRs) and microRNAs (miRNAs) form complex regulatory networks in bladder cancer (BCa). Understanding these interactions offers new targets for precision oncology and improved treatment outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Gene Regulation
Background:
- Nuclear receptors (NRs) are crucial transcription factors involved in physiological processes and cancer.
- Dysregulated NR signaling in bladder cancer (BCa) impacts tumor initiation, progression, resistance, and immune evasion.
- Emerging evidence reveals significant crosstalk between NRs and microRNAs (miRNAs) in BCa pathogenesis.
Purpose of the Study:
- To provide an integrated overview of molecular interactions between NRs and miRNAs in BCa.
- To elucidate how miRNAs regulate NR expression and function, and vice versa.
- To highlight therapeutic strategies targeting these NR-miRNA networks.
Main Methods:
- Literature review focusing on molecular interactions between NRs and miRNAs in BCa.
- Analysis of regulatory feedback loops formed by NR-miRNA interplay.
- Discussion of specific miRNA-NR interactions impacting key cancer hallmarks.
Main Results:
- miRNAs regulate NR expression and function, while NRs influence miRNA biogenesis, creating feedback loops.
- Specific interactions affect epithelial-to-mesenchymal transition, metabolic reprogramming, angiogenesis, and chemoresistance.
- NR-miRNA networks are implicated in BCa progression and therapeutic resistance.
Conclusions:
- NR-miRNA interactions are central to BCa development and progression.
- Targeting these networks offers potential for novel diagnostic biomarkers and personalized treatments.
- Further understanding can advance precision oncology in urological cancers.
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