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MicroRNAs as Emerging Therapeutic Targets Modulating the Tumor Microenvironment in Head and Neck Squamous Cell
Roxana Daniela Brata1, Lavinia Marcut2, Alina Cristina Barb3
1Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania.
Abstract:
Head and neck squamous cell carcinoma (HNSCC) remains one of the most aggressive solid tumors, characterized by marked molecular heterogeneity and a complex tumor microenvironment (TME). Recent evidence highlights the pivotal role of microRNAs (miRNAs) in regulating tumor progression, immune evasion, angiogenesis, and stromal remodeling. This review synthesizes current insights into miRNA-mediated molecular pathways that modulate the TME in HNSCC and discusses emerging therapeutic strategies, including nanocarrier- and exosome-based miRNA delivery systems, targeting these molecules. Key miRNAs, including miR-21, miR-146a, and miR-221, orchestrate bidirectional signaling between cancer cells, fibroblasts, and immune infiltrates, thereby shaping tumor aggressiveness and therapy resistance. Advances in nanotechnology have facilitated the development of miRNA-based therapeutics-such as mimics, antagomiRs, and exosome-mediated systems-capable of restoring physiological expression patterns and reprogramming the TME toward an anti-tumor state. However, clinical translation remains hindered by challenges in targeted delivery, molecular stability, and tumor heterogeneity. By integrating molecular and translational perspectives, this review underscores how miRNA-targeting strategies may evolve into a new generation of precision therapies, bridging the gap between molecular oncology and personalized treatment of head and neck cancer.
Insights
MicroRNAs (miRNAs) significantly influence head and neck squamous cell carcinoma (HNSCC) progression and the tumor microenvironment (TME). Targeting these miRNAs with nanotechnology offers promising precision therapies for HNSCC.
Area of Science:
- Oncology
- Molecular Biology
- Nanotechnology
Background:
- Head and neck squamous cell carcinoma (HNSCC) is an aggressive malignancy with complex tumor microenvironments (TME).
- MicroRNAs (miRNAs) play crucial roles in HNSCC progression, immune evasion, angiogenesis, and stromal remodeling.
- Understanding miRNA-mediated pathways within the TME is vital for developing novel therapeutic strategies.
Purpose of the Study:
- To review current knowledge on miRNA-mediated molecular pathways modulating the TME in HNSCC.
- To discuss emerging nanocarrier- and exosome-based miRNA delivery systems for HNSCC therapy.
- To highlight the potential of miRNA-targeting strategies as precision therapies for HNSCC.
Main Methods:
- Literature review synthesizing current research on miRNAs and the HNSCC TME.
- Analysis of key miRNAs (e.g., miR-21, miR-146a, miR-221) and their signaling roles.
- Evaluation of nanotechnology-based therapeutic approaches for miRNA delivery.
Main Results:
- Specific miRNAs orchestrate bidirectional signaling, impacting HNSCC aggressiveness and therapy resistance.
- Nanotechnology enables development of miRNA mimics, antagomiRs, and exosome systems for TME reprogramming.
- Challenges in clinical translation include targeted delivery, molecular stability, and tumor heterogeneity.
Conclusions:
- miRNA-targeting strategies hold potential for a new generation of precision therapies in HNSCC.
- Reprogramming the TME via miRNA modulation can shift it towards an anti-tumor state.
- Bridging molecular oncology insights with personalized HNSCC treatment is achievable through miRNA-based approaches.
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