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Updated: Dec 1, 2025

In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice
Published on: August 23, 2019
microRNAs deregulation in head and neck squamous cell carcinoma
Juliana Carron1, Caroline Torricelli1, Janet K Silva1
1Laboratory of Cancer Genetics, School of Medical Sciences, University of Campinas, Campinas, Brazil.
Abstract:
Head and neck (HN) squamous cell carcinoma (SCC) is the eighth most common human cancer worldwide. Besides tobacco and alcohol consumption, genetic and epigenetic alterations play an important role in HNSCC occurrence and progression. microRNAs (miRNAs) are small noncoding RNAs that regulate cell cycle, proliferation, development, differentiation, and apoptosis by interfering in gene expression. Expression profiling of miRNAs showed that some miRNAs are upregulated or downregulated in tumor cells when compared with the normal cells. The present review focuses on the role of miRNAs deregulations in HNSCC, enrolled in risk, development, outcome, and therapy sensitivity. Moreover, the influence of single nucleotide variants in miRNAs target sites, miRNAs seed sites, and miRNAs-processing genes in HNSCC was also revised. Due to its potential for cancer diagnosis, progression, and as a therapeutic target, miRNAs may bring new perspectives in HNSCC understanding and therapy, especially for those patients with no or insufficient treatment options.
Insights
microRNAs (miRNAs) are key regulators in head and neck squamous cell carcinoma (HNSCC). Their deregulation impacts cancer risk, progression, and treatment response, offering new therapeutic avenues.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Head and neck squamous cell carcinoma (HNSCC) is a significant global health concern.
- Genetic and epigenetic factors, including microRNA (miRNA) alterations, are crucial in HNSCC development and progression.
- microRNAs are small noncoding RNAs regulating gene expression, impacting critical cellular processes.
Purpose of the Study:
- To review the role of microRNA deregulation in head and neck squamous cell carcinoma.
- To explore the influence of genetic variations in microRNAs and their targets on HNSCC.
- To highlight the potential of microRNAs as diagnostic markers and therapeutic targets in HNSCC.
Main Methods:
- Literature review focusing on microRNA expression profiling in HNSCC.
- Analysis of studies investigating single nucleotide variants in miRNA-related genes and target sites.
- Synthesis of current knowledge on miRNA involvement in HNSCC risk, development, prognosis, and therapy.
Main Results:
- microRNA expression is significantly altered (upregulated or downregulated) in HNSCC cells compared to normal cells.
- Single nucleotide variants in miRNA processing genes and target sites are associated with HNSCC.
- miRNA deregulation influences HNSCC risk, progression, patient outcomes, and sensitivity to therapy.
Conclusions:
- microRNA deregulation is a critical factor in head and neck squamous cell carcinoma.
- microRNAs present promising potential as biomarkers for HNSCC diagnosis and prognosis.
- Targeting microRNAs may offer novel therapeutic strategies for HNSCC patients, particularly those with limited treatment options.
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