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Updated: Jan 19, 2026

Production and Detection of Reactive Oxygen Species ROS in Cancers
Published on: November 21, 2011
Sestrins as a Therapeutic Bridge between ROS and Autophagy in Cancer
Miguel Sánchez-Álvarez1, Raffaele Strippoli2,3, Massimo Donadelli4
1Mechanoadaptation & Caveolae Biology Lab, Cell and Developmental Biology Area, Centro Nacional de Investigaciones Cardiovasculares (CNIC). Madrid 28029, Spain. miguel.sanchez@cnic.es.
Abstract:
: The regulation of Reactive Oxygen Species (ROS) levels and the contribution therein from networks regulating cell metabolism, such as autophagy and the mTOR-dependent nutrient-sensing pathway, constitute major targets for selective therapeutic intervention against several types of tumors, due to their extensive rewiring in cancer cells as compared to healthy cells. Here, we discuss the sestrin family of proteins-homeostatic transducers of oxidative stress, and drivers of antioxidant and metabolic adaptation-as emerging targets for pharmacological intervention. These adaptive regulators lie at the intersection of those two priority nodes of interest in antitumor intervention-ROS control and the regulation of cell metabolism and autophagy-therefore, they hold the potential not only for the development of completely novel compounds, but also for leveraging on synergistic strategies with current options for tumor therapy and classification/stadiation to achieve personalized medicine.
Insights
Sestrin proteins regulate oxidative stress and metabolism, offering new therapeutic targets for cancer. Targeting these proteins could lead to novel treatments or enhance existing therapies for personalized medicine.
Area of Science:
- Biochemistry
- Oncology
- Molecular Biology
Background:
- Reactive Oxygen Species (ROS) regulation is crucial in cancer, involving metabolic pathways like autophagy and mTOR.
- Cancer cells exhibit significant metabolic rewiring, making these pathways attractive therapeutic targets.
Purpose of the Study:
- To explore the sestrin protein family as potential pharmacological targets for cancer therapy.
- To highlight sestrin's role in integrating oxidative stress control and metabolic adaptation.
Main Methods:
- Literature review and discussion of sestrin proteins' functions.
- Analysis of sestrin's position within cellular regulatory networks.
Main Results:
- Sestrins act as homeostatic transducers of oxidative stress.
- Sestrins drive antioxidant and metabolic adaptation in cells.
- Sestrins are positioned at the nexus of ROS control and metabolic/autophagy regulation.
Conclusions:
- Sestrin proteins represent emerging targets for novel anti-tumor compounds.
- Targeting sestrin may enable synergistic strategies with existing cancer therapies.
- Sestrin-based approaches hold potential for personalized cancer medicine.
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