ArticleWorld journal of surgical oncology2024
Excessive glutathione intake contributes to chemotherapy resistance in breast cancer: a propensity score matching analysis.
Article in World journal of surgical oncology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Significance of GSH and HRedox report : communications in free radical research · 2026Review
- The role of metals in cancer and the use of metal chelators as a potential treatment strategy.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026Review
- Unraveling the role of deuterium in cancer: mechanisms, detection techniques, and therapeutic potential.Molecular diversity · 2026Review
- The Redox Paradox of Natural Supplements in Cancer: A Narrative Review to Guide Clinical Practice.Antioxidants (Basel, Switzerland) · 2026Review
- Prolonged S-adenosylmethionine exposure is associated with poorer treatment response and adverse outcomes in breast cancer: a retrospective cohort study.World journal of surgical oncology · 2026Article
- Therapy as a State-Generator: Dynamic Phenotypic Landscapes and Adaptive Stress Circuits in Chemotherapy Resistance of Breast Cancer.Antioxidants (Basel, Switzerland) · 2026Review
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Abstract
backgroundWe aim to explore the impact of excessive glutathione (GSH) intake on chemotherapy sensitivity in breast cancer.
methodsClinicopathological data were collected from 460 breast cancer patients who underwent adjuvant chemotherapy from January 2016 to December 2019 from Zhengzhou University People's Hospital. The clinicopathological characteristics following GSH treatment were collected and compared with those in Non-GSH group after 1:2 propensity score matching (PSM). Intracellular GSH levels and the expression of antioxidant enzymes (NRF2, GPX4 and SOD1) were evaluated in tumor tissues in 51 patients receiving neoadjuvant chemotherapy.
resultsThe recurrence rate after adjuvant chemotherapy was significantly higher in the GSH group (n = 28, 31.8%) than that in the Non-GSH group (n = 39, 22.2%; P = 0.010). Additionally, patients in the HGSH group (high GSH intake, ≥ 16 days) exhibited an elevated recurrence rate compared to that in the LGSH group (low GSH intake, < 16 days) (n = 15 (46.8%) vs. n = 52 (22.4%); P = 0.003). Cox regression revealed that High GSH intake, Ki67 ≥ 30%, Triple negative and Lymphovascular invasion were independent risk factors of progression after adjuvant chemotherapy. Among patients receiving neoadjuvant chemotherapy, intracellular GSH levels and the expression levels of antioxidant enzymes (NRF2, GPX4 and SOD1) in the resistant patients were substantially higher (P < 0.001).
conclusionsExcessive GSH intake may contribute to chemotherapy resistance in breast cancer, and the levels of intracellular GSH and antioxidant enzymes are elevated in resistant patients after neoadjuvant chemotherapy, indicating that the standardization of GSH intake may assist in reducing chemotherapy resistance.
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