Function and Regulatory Mechanism of MicroRNAs in Cancers

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Molecular Genetics and Genomics".

Deadline for manuscript submissions: 25 June 2026 | Viewed by 3266

Special Issue Editors


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Guest Editor
Department of Clinical Genetics, Faculty of Medicine, Medical University of Lublin, Lublin, Poland
Interests: stem cells; mesenchymal stem cells; gene expression; microRNA; cancer

E-Mail Website
Guest Editor
Department of Clinical Genetics, Faculty of Medicine, Medical University of Lublin, Lublin, Poland
Interests: stem cells; mesenchymal stem cells; gene expression; microRNA; breast mik; cancer
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Clinical Genetics, Faculty of Medicine, Medical University of Lublin, Lublin, Poland
Interests: microRNA; cancer; gene expression; alzheimer's disease

Special Issue Information

Dear Colleagues,

MicroRNAs (miRNAs) have emerged as pivotal post-transcriptional regulators of gene expression, playing a significant role in the initiation, progression, and metastasis of various cancers. Their ability to function as oncogenes or tumor suppressors places them at the forefront of molecular oncology. This Special Issue examines the intricate regulatory networks involving microRNAs (miRNAs) in cancer biology, including their interactions with transcription factors, signaling pathways, and epigenetic mechanisms. We welcome original research articles and comprehensive reviews that investigate the functional roles of miRNAs in tumorigenesis, their potential as diagnostic and prognostic biomarkers, and their relevance as therapeutic targets. We also encourage submissions that highlight novel miRNA-based therapeutic strategies, mechanisms of resistance, and the role of miRNAs in cancer immunology. Through this Special Issue, we aim to advance our understanding of microRNA-mediated regulatory processes and translate this knowledge into clinical applications.

Dr. Alicja Petniak
Dr. Paulina Gil-Kulik
Dr. Janusz Kocki
Guest Editors

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Keywords

  • microRNAs (miRNAs)
  • cancer biomarkers
  • gene regulation
  • miRNA-based therapies
  • tumor microenvironment
  • cancer progression
  • drug resistance
  • non-coding RNAs
  • epigenetic regulation
  • cancer immunology

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Published Papers (3 papers)

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Review

15 pages, 1117 KB  
Review
miRNA as a Prognostic Marker in Small Lung Cell Carcinoma
by Michał Bednarz, Aleksandra Osińska, Julia Durda, Milena Kędra, Michalina Boruch, Julia Gontarz, Alicja Petniak, Janusz Kocki and Paulina Gil-Kulik
Genes 2025, 16(12), 1465; https://doi.org/10.3390/genes16121465 - 8 Dec 2025
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Abstract
Small-cell lung carcinoma (SCLC) is one of the most aggressive and therapeutically challenging malignancies. It is characterised by rapid progression, early metastasis and frequent relapse. Despite considerable advances in molecular oncology, effective biomarkers for prognosis and treatment response remain elusive. In this review, [...] Read more.
Small-cell lung carcinoma (SCLC) is one of the most aggressive and therapeutically challenging malignancies. It is characterised by rapid progression, early metastasis and frequent relapse. Despite considerable advances in molecular oncology, effective biomarkers for prognosis and treatment response remain elusive. In this review, we summarise and discuss recent evidence on microRNAs (miRNAs) as central regulators of SCLC biology and their potential clinical applications. A narrative review of the literature was conducted. Search of PubMed and Scopus databases identified 14 miRNAs, including miR-7-5p, miR-22-3p, miR-134, miR-181b, miR-200b, miR-335, miR-335-5p, miR-495, miR-24-3p, miR-30a-5p, miR-30a-3p, miR-100, miR-1 and miR-494, which are linked to tumour progression, therapy resistance and metastasis. These molecules influence several signalling cascades, including PI3K/Akt, Hippo, TGF-β, PARP1-mediated DNA repair and autophagy. Their abnormal expression correlates with patient outcome and may enable plasma- or exosome-based non-invasive monitoring. In particular, strategies that restore or inhibit miRNA activity using mimics or antagomiRs show promise in improving drug sensitivity and complementing current treatment options. Overall, emerging evidence supports the integration of miRNA profiling into precision oncology for SCLC, with the aim of refining diagnosis, risk assessment and therapeutic decision-making. Full article
(This article belongs to the Special Issue Function and Regulatory Mechanism of MicroRNAs in Cancers)
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13 pages, 1306 KB  
Review
Plant-Derived miRNAs as Potential Cross-Kingdom Cancer Regulators
by Aizhan Rakhmetullina, Zuzanna Lubas and Piotr Zielenkiewicz
Genes 2025, 16(12), 1441; https://doi.org/10.3390/genes16121441 - 2 Dec 2025
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Abstract
MicroRNAs (miRNAs) are key posttranscriptional regulators of gene expression that influence cancer initiation, progression, and therapeutic response. While most studies have focused on endogenous miRNAs, emerging evidence has highlighted the role of plant-derived miRNAs as exogenous dietary regulators capable of cross-kingdom gene modulation. [...] Read more.
MicroRNAs (miRNAs) are key posttranscriptional regulators of gene expression that influence cancer initiation, progression, and therapeutic response. While most studies have focused on endogenous miRNAs, emerging evidence has highlighted the role of plant-derived miRNAs as exogenous dietary regulators capable of cross-kingdom gene modulation. This review summarises current knowledge regarding plant-derived miRNAs and their ability to regulate human cancer-related genes. Experimental findings indicate that plant miRNAs can withstand gastrointestinal digestion, enter the circulation, and regulate the expression of oncogenes, tumour suppressors, long noncoding RNAs, and immune checkpoint molecules via canonical RNA-induced silencing mechanisms. Specific examples include miR-156a, miR-159a-3p, miR-166a, miR-167e-5p, miR-171, miR-395e, miR-2911, miR-4995 and miR-5754, which exhibit anticancer activities across various cancer types and modulate key signalling pathways in mammalian cells, highlighting their potential as cross-kingdom regulators with therapeutic relevance. In addition to these characterised miRNAs, certain plant groups, which are rich in bioactive compounds, remain unexplored as sources of functional miRNAs, representing a promising avenue for future research. Collectively, these studies underscore the ability of plant-derived miRNAs to modulate mammalian gene expression and suggest their potential as diet-based or synthetic therapeutic agents. Further investigations into their bioavailability, target specificity, and functional relevance could inform innovative strategies for cancer prevention, integrating nutritional, molecular biological, and therapeutic approaches. Full article
(This article belongs to the Special Issue Function and Regulatory Mechanism of MicroRNAs in Cancers)
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Graphical abstract

12 pages, 714 KB  
Review
MicroRNA-Induced Regulation of the IGF-1 System in Various Types of Cancer
by George Triantafyllou, Mary Kategianni, Maria Maridaki, Michael Koutsilieris and Anastassios Philippou
Genes 2025, 16(10), 1135; https://doi.org/10.3390/genes16101135 - 25 Sep 2025
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Abstract
Insulin-like growth factor 1 (IGF-1) is an important endocrine and autocrine/paracrine factor that regulates various cellular responses in multiple biological systems. Its actions are mediated mainly via its binding to the type 1 IGF receptor (IGF-1R), while its bioactivity is also modulated by [...] Read more.
Insulin-like growth factor 1 (IGF-1) is an important endocrine and autocrine/paracrine factor that regulates various cellular responses in multiple biological systems. Its actions are mediated mainly via its binding to the type 1 IGF receptor (IGF-1R), while its bioactivity is also modulated by the IGF-binding proteins (IGFBPs). The IGF-1 system regulates cell growth, differentiation and energy metabolism and thus plays a crucial role in the modulation of key aspects of cancer biology, such as cancer cell growth, survival, transformation and invasion. The synthesis of IGF-1 is regulated, among other factors, by microRNAs (miRNAs), and it has been shown that the miRNA-induced regulation of IGF-1 is implicated in various stages of tumor development and/or progression in different types of cancer. The aim of this review was to identify and characterize the miRNA-induced regulation of the IGF-1 system in various types of cancer. It was revealed that many miRNAs can be used as potential biomarkers, while others may contribute to metastasis regulation, targeting components of the IGF-1 bioregulation system and being implicated in cancer staging and/or progression. Additional miRNAs and their role in IGF-1’s effects on other types of cancer have also been identified. Nevertheless, future studies are needed to expand the current knowledge on the role of miRNAs in the regulation of other components of the IGF-1 bioregulation system and in various types of cancer, contributing further to the characterization of the role of miRNAs and their target genes as pathogenic, therapeutic and diagnostic molecules for cancer in clinical practice. Full article
(This article belongs to the Special Issue Function and Regulatory Mechanism of MicroRNAs in Cancers)
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