Effects of antioxidants on cancer progression

Abstract Antioxidant supplements are widely marketed for their promised health benefits, including cancer prevention and therapy support. This belief stems from the idea that excessive levels of reactive oxygen species (ROS) cause oxidative damage to cellular macromolecules. However, the effects of...

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Main Authors: Sarah Schmidt, Xi Qiao, Martin O Bergö
Format: Article
Language:English
Published: Springer Nature 2025-07-01
Series:EMBO Molecular Medicine
Online Access:https://doi.org/10.1038/s44321-025-00269-5
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author Sarah Schmidt
Xi Qiao
Martin O Bergö
author_facet Sarah Schmidt
Xi Qiao
Martin O Bergö
author_sort Sarah Schmidt
collection DOAJ
description Abstract Antioxidant supplements are widely marketed for their promised health benefits, including cancer prevention and therapy support. This belief stems from the idea that excessive levels of reactive oxygen species (ROS) cause oxidative damage to cellular macromolecules. However, the effects of antioxidants are highly context-dependent and influenced by the compound type, dosage, and cancer type. While antioxidants may slow tumor progression in specific cancers such as MYC-driven lymphoma, they can accelerate tumor growth, metastasis, and angiogenesis in other settings, including KRAS-driven lung cancer and BRAF-driven melanoma. Some antioxidants may also influence the immune system in ways that support cancer therapies, such as immune checkpoint blockade. Here, we review recent studies that highlight the complex roles of antioxidants in cancer progression and discuss their potential implications for clinical practice.
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institution Kabale University
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series EMBO Molecular Medicine
spelling doaj-art-1db704fb5073488ca4ccbafd29c6d5882025-08-20T03:46:16ZengSpringer NatureEMBO Molecular Medicine1757-46842025-07-011781896190110.1038/s44321-025-00269-5Effects of antioxidants on cancer progressionSarah Schmidt0Xi Qiao1Martin O Bergö2Department of Medicine Huddinge, Karolinska InstitutetDepartment of Medicine Huddinge, Karolinska InstitutetDepartment of Medicine Huddinge, Karolinska InstitutetAbstract Antioxidant supplements are widely marketed for their promised health benefits, including cancer prevention and therapy support. This belief stems from the idea that excessive levels of reactive oxygen species (ROS) cause oxidative damage to cellular macromolecules. However, the effects of antioxidants are highly context-dependent and influenced by the compound type, dosage, and cancer type. While antioxidants may slow tumor progression in specific cancers such as MYC-driven lymphoma, they can accelerate tumor growth, metastasis, and angiogenesis in other settings, including KRAS-driven lung cancer and BRAF-driven melanoma. Some antioxidants may also influence the immune system in ways that support cancer therapies, such as immune checkpoint blockade. Here, we review recent studies that highlight the complex roles of antioxidants in cancer progression and discuss their potential implications for clinical practice.https://doi.org/10.1038/s44321-025-00269-5
spellingShingle Sarah Schmidt
Xi Qiao
Martin O Bergö
Effects of antioxidants on cancer progression
EMBO Molecular Medicine
title Effects of antioxidants on cancer progression
title_full Effects of antioxidants on cancer progression
title_fullStr Effects of antioxidants on cancer progression
title_full_unstemmed Effects of antioxidants on cancer progression
title_short Effects of antioxidants on cancer progression
title_sort effects of antioxidants on cancer progression
url https://doi.org/10.1038/s44321-025-00269-5
work_keys_str_mv AT sarahschmidt effectsofantioxidantsoncancerprogression
AT xiqiao effectsofantioxidantsoncancerprogression
AT martinobergo effectsofantioxidantsoncancerprogression