Related Experiment Video
Updated: Mar 22, 2026

Visualization of Vascular Ca2+ Signaling Triggered by Paracrine Derived ROS
Published on: December 21, 2011
Oxidative stress, microRNAs and cytosolic calcium homeostasis
Alessandra Magenta1, Elena Dellambra1, Roberta Ciarapica1
1Istituto Dermopatico dell'Immacolata-IRCCS, FLMM, Laboratorio di Patologia Vascolare, Via dei Monti di Creta 104, Rome 00167, Italy.
Abstract:
Reactive oxygen species increase cytosolic [Ca(2+)], (Cai), and also modulate the expression of some microRNAs (miRNAs), however the link among oxidative stress, miRNAs and Cai is poorly characterized. In this review we have focused on three groups of miRNAs: (a) miRNAs that are modulated both by ROS and Cai: miR-181a and miR-205; (b) miRNAs that are modulated by ROS and have an effect on Cai: miR-1, miR-21, miR-24, miR-25, miR-185 and miR-214; (c) miRNAs that modulate both ROS and Cai: miR-133; miR-145, miR-495, and we have analyzed their effects on cell signaling and cell function. Finally, in the last section we have examined the role of these miRNAs in the skin, under conditions associated with enhanced oxidative stress, i.e. skin aging, the response to ultraviolet light and two important skin diseases, psoriasis and atopic dermatitis. It is apparent that although some experimental evidence is already available on (a) the role of Cai in miRNAs expression and (b) on the ability of some miRNAs to modulate Cai-dependent intracellular signaling, these research lines are still largely unexplored and represent important areas of future studies.
Insights
Reactive oxygen species (ROS) impact cell calcium levels (Cai) and microRNA (miRNA) expression. This review explores how specific miRNAs link ROS, Cai, and cell function, particularly in skin aging and diseases.
Area of Science:
- Biochemistry
- Molecular Biology
- Dermatology
Background:
- Reactive oxygen species (ROS) are known to increase cytosolic calcium ions (Cai).
- MicroRNAs (miRNAs) are also modulated by ROS, but the interplay between ROS, miRNAs, and Cai is not well understood.
- Specific miRNAs are implicated in cellular signaling pathways affected by oxidative stress.
Purpose of the Study:
- To review the current understanding of the relationship between ROS, miRNAs, and Cai.
- To categorize miRNAs based on their modulation by ROS and/or Cai, and their effects on cell signaling.
- To examine the role of these miRNAs in skin physiology and pathology.
Main Methods:
- Literature review focusing on miRNAs modulated by ROS and/or Cai.
- Analysis of miRNA effects on cell signaling and function.
- Examination of miRNA roles in skin aging, UV response, psoriasis, and atopic dermatitis.
Main Results:
- Identified three groups of miRNAs: those modulated by both ROS and Cai (miR-181a, miR-205); those modulated by ROS with effects on Cai (miR-1, miR-21, miR-24, miR-25, miR-185, miR-214); and those modulating both ROS and Cai (miR-133, miR-145, miR-495).
- These miRNAs influence cell signaling and function.
- Several miRNAs play roles in skin conditions linked to oxidative stress.
Conclusions:
- The link between oxidative stress, miRNAs, and Cai is a complex and emerging area of research.
- Further investigation is needed to fully elucidate the role of Cai in miRNA expression and the impact of miRNAs on Cai-dependent signaling.
- These miRNAs represent potential therapeutic targets for oxidative stress-related skin conditions.
Related Concept Videos
Feedback Regulation of Calcium Concentration
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Regulation of the Unfolded Protein Response
Role of ER in the Secretory Pathway
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
Mitochondrial Membranes
Calmodulin-dependent Signaling
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
Other Stress Responses in Bacteria

