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Published on: December 11, 2020
UCP2 as a Cancer Target through Energy Metabolism and Oxidative Stress Control
Angèle Luby1, Marie-Clotilde Alves-Guerra1
1Université Paris Cité, Institut Cochin, INSERM, CNRS, F-75014 Paris, France.
Abstract:
Despite numerous therapies, cancer remains one of the leading causes of death worldwide due to the lack of markers for early detection and response to treatment in many patients. Technological advances in tumor screening and renewed interest in energy metabolism have allowed us to identify new cellular players in order to develop personalized treatments. Among the metabolic actors, the mitochondrial transporter uncoupling protein 2 (UCP2), whose expression is increased in many cancers, has been identified as an interesting target in tumor metabolic reprogramming. Over the past decade, a better understanding of its biochemical and physiological functions has established a role for UCP2 in (1) protecting cells from oxidative stress, (2) regulating tumor progression through changes in glycolytic, oxidative and calcium metabolism, and (3) increasing antitumor immunity in the tumor microenvironment to limit cancer development. With these pleiotropic roles, UCP2 can be considered as a potential tumor biomarker that may be interesting to target positively or negatively, depending on the type, metabolic status and stage of tumors, in combination with conventional chemotherapy or immunotherapy to control tumor development and increase response to treatment. This review provides an overview of the latest published science linking mitochondrial UCP2 activity to the tumor context.
Insights
Uncoupling protein 2 (UCP2) is a mitochondrial target that impacts cancer progression and immunity. Targeting UCP2 may improve cancer treatment response and personalized therapies.
Area of Science:
- Biochemistry
- Oncology
- Metabolic pathways
Background:
- Cancer remains a leading cause of death globally, necessitating improved early detection and treatment response markers.
- Technological advancements and focus on cellular metabolism are revealing new targets for personalized cancer therapies.
- Mitochondrial transporter uncoupling protein 2 (UCP2) expression is elevated in many cancers, highlighting its role in tumor metabolic reprogramming.
Purpose of the Study:
- To review the multifaceted roles of uncoupling protein 2 (UCP2) in cancer development and progression.
- To explore UCP2 as a potential biomarker and therapeutic target in various cancer types.
- To discuss the implications of UCP2 targeting in combination with existing cancer treatments.
Main Methods:
- Literature review of recent scientific publications on UCP2 in the tumor context.
- Analysis of UCP2's biochemical and physiological functions in cancer.
- Synthesis of UCP2's impact on cellular metabolism, oxidative stress, and anti-tumor immunity.
Main Results:
- UCP2 plays a key role in protecting cancer cells from oxidative stress.
- UCP2 influences tumor progression by altering glycolytic, oxidative, and calcium metabolism.
- UCP2 enhances anti-tumor immunity within the tumor microenvironment, potentially limiting cancer growth.
Conclusions:
- UCP2 exhibits pleiotropic roles in cancer, acting as a potential tumor biomarker.
- Targeting UCP2 (either inhibition or activation) could be a viable strategy for personalized cancer therapy.
- Modulating UCP2 activity, in conjunction with chemotherapy or immunotherapy, may improve treatment efficacy and patient outcomes.
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