Related Experiment Video
Updated: Sep 3, 2025

Measuring the Osmotic Water Permeability Coefficient Pf of Spherical Cells: Isolated Plant Protoplasts as an Example
Published on: October 8, 2014
Role of microRNAs in aquaporin 2 regulation
Federica Petrillo1, Francesco Trepiccione2,3
1Department of Biomedicine, Aarhus University, Aarhus, Denmark.
Purpose Of Review:
The current review aims to present the most recent achievements on the role of microRNAs (miRNAs) on the kidney function to stimulate research in the field and to expand new emerging concepts.
Recent Findings:
The focus is on the role of miRNAs in intercellular communication along the segments of the nephron and on the epi-miRNAs, namely the possibility of some miRNAs to modulate the epigenetic machinery and so gene expression. Indeed, recent evidence showed that miRNAs included in exosomes and released by proximal tubule cells can modulate ENaC activity on cells of collecting duct. These data, although, from in-vitro models open to a novel role for miRNAs to participate in paracrine signaling pathways. In addition, the role of miRNAs as epigenetic modulators is expanding not only in the cancer field, but also in the other kidney diseases. Recent evidence identified three miRNAs able to modulate the AQP2 promoter metilation and showing an additional level of regulation for the AQP2.
Summary:
These evidence can inspire novel area of research both for renal physiology and drug discovery. The diseases involving the collecting duct are still missing disease modifying agents and the expanding miRNAs field could represent an opportunity.
Insights
MicroRNAs (miRNAs) play crucial roles in kidney function, acting in intercellular communication and epigenetic regulation. Emerging research highlights their potential in treating kidney diseases, offering new therapeutic avenues.
Area of Science:
- Nephrology
- Molecular Biology
- Epigenetics
Background:
- MicroRNAs (miRNAs) are key regulators of gene expression.
- Their role in kidney physiology and disease is an evolving area of research.
- Intercellular communication within the nephron is critical for kidney function.
Purpose of the Study:
- To review recent advancements in understanding miRNA functions in kidney health and disease.
- To explore the role of miRNAs in intercellular communication and epigenetic modulation within the kidney.
- To identify novel research directions and therapeutic opportunities related to miRNAs in nephrology.
Main Methods:
- Review of current scientific literature on miRNAs and kidney function.
- Analysis of studies investigating miRNA-mediated intercellular communication.
- Examination of research on miRNA's epigenetic regulatory roles in kidney diseases.
Main Results:
- miRNAs are involved in paracrine signaling pathways, with exosomes from proximal tubule cells modulating collecting duct function.
- miRNAs act as epigenetic modulators, influencing gene expression in kidney diseases beyond cancer.
- Specific miRNAs have been identified that regulate the AQP2 promoter methylation, adding another layer of gene regulation.
Conclusions:
- miRNAs offer novel insights into renal physiology and paracrine signaling.
- The epigenetic regulatory capacity of miRNAs presents new therapeutic targets for kidney diseases.
- Further research into miRNAs could lead to the development of disease-modifying agents for kidney conditions, particularly those affecting the collecting duct.
Related Concept Videos
Aquaporins
Regulation of Water Output
Endocrine Signaling
Reabsorption and Secretion in the DCT and Collecting Duct
The distal...
Regulation of Water Intake
MicroRNAs

