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Updated: Feb 20, 2026

MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method
Published on: October 7, 2025
MicroRNA-Directed Cancer Therapies: Implications in Melanoma Intervention
Anita Thyagarajan1, Ahmed Shaban1, Ravi Prakash Sahu2
1Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, Ohio (A.T., R.P.S.); and Department of Pharmacology, Faculty of veterinary medicine, Zagazig University, Zagazig, Egypt (A.S.).
Abstract:
Acquired tumor resistance to cancer therapies poses major challenges in the treatment of cancers including melanoma. Among several signaling pathways or factors that affect neocarcinogenesis, cancer progression, and therapies, altered microRNAs (miRNAs) expression has been identified as a crucial player in modulating the key pathways governing these events. While studies in the miRNA field have grown exponentially in the last decade, much remains to be discovered, particularly with respect to their roles in cancer therapies. Since immune and nonimmune signaling cascades prevail in cancers, identification and evaluation of miRNAs, their molecular mechanisms and cellular targets involved in the underlying development of cancers, and acquired therapeutic resistance would help in devising new strategies for the prognosis, treatment, and an early detection of recurrence. Importantly, in-depth validation of miRNA-targeted molecular events could lead to the development of accurate progression-risk biomarkers, improved effectiveness, and improved patient responses to standard therapies. The current review focuses on the roles of miRNAs with recent updates on regulated cell cycle and proliferation, immune responses, oncogenic/epigenetic signaling pathways, invasion, metastasis, and apoptosis, with broader attention paid to melanomagenesis and melanoma therapies.
Insights
Altered microRNAs (miRNAs) impact cancer progression and therapy resistance, especially in melanoma. Understanding miRNA roles is key for developing new biomarkers and improving cancer treatments.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Acquired tumor resistance to cancer therapies is a significant challenge in treating cancers like melanoma.
- Altered microRNA (miRNA) expression is a critical factor in cancer development, progression, and therapeutic response.
- miRNAs regulate key pathways involved in cancer, including cell cycle, proliferation, and immune responses.
Purpose of the Study:
- To review the current understanding of miRNA roles in cancer, with a focus on melanoma.
- To explore the molecular mechanisms and cellular targets of miRNAs in cancer development and therapeutic resistance.
- To highlight the potential of miRNAs as biomarkers for prognosis, treatment, and early detection of recurrence.
Main Methods:
- Literature review of recent studies on miRNA expression and function in cancer.
- Analysis of miRNA involvement in cell cycle regulation, proliferation, immune responses, invasion, metastasis, and apoptosis.
- Focus on melanomagenesis and melanoma therapies.
Main Results:
- miRNAs play a crucial role in modulating key pathways governing cancer progression and therapeutic resistance.
- Identification of specific miRNAs and their targets can inform strategies for cancer treatment and prognosis.
- miRNA-targeted molecular events hold promise for developing accurate progression-risk biomarkers.
Conclusions:
- Understanding miRNA functions is essential for developing novel therapeutic strategies against cancer, particularly melanoma.
- miRNAs can serve as valuable biomarkers for predicting treatment response and detecting recurrence.
- Further validation of miRNA-targeted molecular events could significantly improve cancer patient outcomes.
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