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Updated: Jul 14, 2026

MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method
Published on: October 7, 2025
[Relevance of microRNA-s in neoplastic diseases]
Zsófia Tömböl1, Péter Szabó, Károly Rácz
1Semmelweis Egyetem, Altalános Orvostudományi Kar II. Belgyógyászati Klinika, Budapest.
Abstract:
MicroRNA molecules consisting of 19-23 nucleotides influence numerous basic physiological and pathophysiological processes as endogenous mediators of RNA interference. These molecules are capable of specifically inhibiting the translation of messenger RNA molecules, but in some cases also promote the degradation of mRNA-s. Altered microRNA expression profiles were noted in several human diseases, most data, however, are known for neoplasms. Characteristic microRNA profiles are known both in solid and haematologic malignancies. MicroRNA profiles enable the distinction of benign follicular adenomas from follicular neoplasms of the thyroid. The micro-RNA expression patterns could be associated with the clinical behaviour of certain neoplasms (e.g. lung tumours and chronic lymphocytic leukemia) as well. It is possible that small molecular weight RNA-s may be used for therapeutical purposes in the future.
Insights
MicroRNAs, small RNA molecules, regulate gene expression and are implicated in various diseases, particularly cancers. Their distinct expression patterns offer diagnostic potential and future therapeutic strategies.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Context:
- MicroRNAs (miRNAs) are endogenous small RNA molecules (19-23 nucleotides) that act as key regulators in RNA interference pathways.
- They modulate gene expression by inhibiting messenger RNA (mRNA) translation or promoting mRNA degradation.
- Altered miRNA expression is a hallmark of numerous human diseases, with extensive research focusing on their role in neoplasms.
Purpose:
- To review the role of microRNAs in physiological and pathophysiological processes.
- To highlight the significance of altered miRNA expression profiles in various human diseases, especially cancers.
- To explore the diagnostic and potential therapeutic applications of miRNAs in oncology and other diseases.
Summary:
- MicroRNAs are crucial regulators of gene expression with significant roles in both normal physiology and disease pathogenesis.
- Aberrant miRNA expression profiles are characteristic of various malignancies, including solid tumors and hematologic cancers.
- Specific miRNA signatures can differentiate between benign and malignant thyroid neoplasms and correlate with the clinical behavior of lung tumors and chronic lymphocytic leukemia.
Impact:
- MicroRNA profiling provides a novel tool for cancer diagnosis and classification, aiding in distinguishing benign from malignant conditions.
- Understanding miRNA dysregulation in diseases like cancer opens avenues for developing targeted miRNA-based therapies.
- Future research may leverage small RNA molecules for therapeutic interventions, offering new treatment strategies for various human diseases.
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