MicroRNA Regulation in Stem Cell Biology
Summary
MicroRNAs are small non-coding RNAs that fine-tune gene expression at the post-transcriptional level and play pivotal roles in the maintenance of self-renewal, pluripotency and differentiation of stem cells. In embryonic and adult stem cells, distinct microRNA families coordinate signalling pathways governing the cell cycle, epigenetic landscapes and lineage specification. These regulators can modulate ion-homeostasis, mechanosensitive gene networks and extracellular matrix interactions, thereby influencing both the physical and transcriptional states of pluripotent cells. MicroRNA-mediated feedback loops with core transcription factors such as NANOG and OCT4 establish robust circuits that stabilise stemness or drive differentiation. In cancer stem cells, dysregulated microRNA expression contributes to aberrant proliferation, invasion and therapy resistance, underscoring their clinical significance. Recent advances have also highlighted the role of extracellular vesicle-borne microRNAs in intercellular communication during organogenesis and disease. Collectively, microRNA regulation in stem cell biology underpins the development of regenerative therapies, disease modelling platforms and novel anti-cancer strategies, reflecting its global impact on basic biology and translational medicine.
Research from Nature Portfolio
Recent studies have revealed that the RNA-binding protein LIS1 is indispensable for mouse embryonic stem cell viability and mechanical integrity. LIS1 associates with Argonaute complexes to regulate post-transcriptional networks of mechanosensitive genes and extracellular matrix components. Overexpression of LIS1 in Argonaute-deficient cells partially restores stiffness-related gene expression and cellular survival, uncovering a previously unrecognised partnership between a cytoskeletal regulator and microRNA effector machinery in controlling pluripotent cell function.
MicroRNA Regulation in Stem Cell Biology publication trend
The graph below shows the total number of articles in microrna regulation in stem cell biology across all publications each year (not limited to Nature Index journals).
Technical terms
microRNA: A short (≈22 nucleotide) non-coding RNA that binds target mRNAs to repress translation or induce degradation.
Pluripotency: The capacity of a stem cell to self-renew and differentiate into all cell types of the adult organism.
Post-transcriptional regulation: Control of gene expression that occurs after mRNA synthesis, including mRNA stability and translation.
Argonaute complex: A multiprotein assembly that incorporates microRNAs and mediates target mRNA silencing.
Mechanosensation: The cellular ability to detect and respond to mechanical cues via cytoskeletal and extracellular matrix interactions.
References
- LIS1 RNA-binding orchestrates the mechanosensitive properties of embryonic stem cells in AGO2-dependent and independent ways. Nature Communications (2023).
- MicroRNAs Regulate Ca2+ Homeostasis in Murine Embryonic Stem Cells. Cells (2023).
- NANOG controls testicular germ cell tumour stemness through regulation of MIR9-2. Stem Cell Research & Therapy (2024).
- Cell Cycle Regulation of Stem Cells by MicroRNAs. Stem Cell Reviews and Reports (2018).
- Involvement of extracellular vesicle microRNA clusters in developing healthy and Rett syndrome brain organoids. Cellular and Molecular Life Sciences (2024).
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