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Updated: Oct 14, 2025

Spatial and Temporal Control of Murine Melanoma Initiation from Mutant Melanocyte Stem Cells
Published on: June 7, 2019
ROS as Regulators of Cellular Processes in Melanoma
Isabella Venza1, Mario Venza1, Maria Visalli2
1Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, Messina, Italy.
Abstract:
In this review, we examine the multiple roles of ROS in the pathogenesis of melanoma, focusing on signal transduction and regulation of gene expression. In recent years, different studies have analyzed the dual role of ROS in regulating the redox system, with both negative and positive consequences on human health, depending on cell concentration of these agents. High ROS levels can result from an altered balance between oxidant generation and intracellular antioxidant activity and can produce harmful effects. In contrast, low amounts of ROS are considered beneficial, since they trigger signaling pathways involved in physiological activities and programmed cell death, with protective effects against melanoma. Here, we examine these beneficial roles, which could have interesting implications in melanoma treatment.
Insights
Reactive oxygen species (ROS) play a dual role in melanoma. Low ROS levels offer protective effects against melanoma by triggering beneficial signaling pathways, suggesting potential therapeutic applications.
Area of Science:
- Oncology
- Biochemistry
- Molecular Biology
Background:
- Reactive oxygen species (ROS) are key regulators of cellular processes.
- ROS exhibit a dual role in human health, with effects varying based on concentration.
- An imbalance in ROS production and antioxidant activity can lead to detrimental health outcomes.
Purpose of the Study:
- To review the multifaceted roles of ROS in melanoma pathogenesis.
- To investigate the impact of ROS on signal transduction and gene expression in melanoma.
- To explore the beneficial effects of low ROS concentrations in melanoma, with therapeutic implications.
Main Methods:
- Literature review of studies on ROS and melanoma.
- Analysis of signal transduction pathways regulated by ROS.
- Examination of ROS effects on gene expression in melanoma cells.
Main Results:
- High ROS levels contribute to melanoma pathogenesis through harmful effects.
- Low ROS levels can trigger signaling pathways involved in physiological activities and programmed cell death.
- Beneficial roles of ROS in melanoma suggest potential therapeutic strategies.
Conclusions:
- ROS signaling is critical in melanoma development and progression.
- Targeting ROS pathways may offer novel therapeutic avenues for melanoma treatment.
- Understanding the redox system's role in melanoma is crucial for developing effective treatments.
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