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We have found that the ketogenic (Keto) diet is able to, unexpectedly, promote the metastatic potential of cancer cells in complementary mouse models. Notably, the Keto diet-induced tumor metastasis is dependent on BTB domain and CNC homolog 1 (BACH1) and its up-regulation of pro-metastatic targets, including cell migration-inducing hyaluronidase 1, in response to the Keto diet. By contrast, upon genetic knockout or pharmacological inhibition of endogenous BACH1, the Keto diet-mediated activation of those targets is largely diminished, and the effects on tumor metastasis are completely abolished. Mechanistically, upon administration of the Keto diet, the levels of activating transcription factor 4 (ATF4) are markedly induced. Through direct interaction with BACH1, ATF4 is recruited to those pro-metastatic target promoters and enhances BACH1-mediated transcriptional activation. Together, these data implicate a distinct transcription regulatory program of BACH1 for tumor metastasis induced by the Keto diet. Our study also raises a potential health risk of the Keto diet in human patients with cancer.
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http://dx.doi.org/10.1126/sciadv.adm9481 | DOI Listing |
Scand J Med Sci Sports
September 2025
Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Dietary intake has an important influence on rates of fuel use during exercise, but the extent to which short-term diet changes affect peak fat oxidation (PFO) and the intensity at which this occurs (Fat) is unknown. This study examined the impact of diet-induced changes in substrate availability on PFO and Fat and the expression of key lipid-regulatory genes and proteins in skeletal muscle. Forty moderately to well-trained males (27 ± 5 years, V̇O 56.
View Article and Find Full Text PDFCurr Obes Rep
September 2025
Department of Medicine, Division of Endocrinology, University of Arizona, Tucson, AZ, USA.
Purpose Of The Review: This review aimed to summarize current evidence on the effectiveness of medical nutrition therapy (MNT) in the management of obesity and endometriosis, with a focus on dietary patterns such as the Mediterranean and Ketogenic diets, as well as nutritional supplementation. Additionally, it highlights the central role of the clinical nutritionist in implementing individualized, evidence-based interventions within multidisciplinary care.
Recent Findings: Although the literature reports the existence of an inverse relationship between risk of endometriosis and body mass index, clinical evidence jointly reports that a condition of obesity is associated with greater disease severity.
Biochem Biophys Rep
December 2025
Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
Breast cancer is the most prevalent cancer among women, posing significant challenges due to its heterogeneity. Recent studies suggest that the ketogenic diet (KD) may enhance chemotherapy efficacy by modulating cancer cell metabolism, particularly through the elevation of ketone bodies like β-hydroxybutyrate (BHB). This study investigates the effects of BHB on breast cancer cells using both 2D and 3D culture models, focusing on its role in developing resistance to fluorouracil (5-FU).
View Article and Find Full Text PDFJ Endocr Soc
October 2025
Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA.
Although indicated as adjunctive therapy for seizure disorders, ketogenic diets (KDs) have gained popularity for weight loss and mitigating the metabolic risks associated with severe obesity. However, efficacy, durability, and long-term consequences are incompletely understood. In preclinical models, most studies have included only male mice, precluding an understanding of sex-specific responses to KD.
View Article and Find Full Text PDFSemin Cancer Biol
September 2025
Dipartimento di Psicologia e Scienze della Salute, Università Telematica Pegaso, Centro Direzionale Isola F2, Via Porzio, 80143 Naples, Italy.
Among the various types of tumors, breast cancer (BC) has a high distribution in the world population and is responsible for a high mortality rate. Like other forms of cancer, BC is characterised by distinctive features such as high-energy metabolism in tumor cells, genetic mutations, and mitochondrial dysfunction that sometimes make conventional therapies less effective. However, there is a growing awareness of the vital role played by diet therapy in the overall management of the patient with BC, both by supporting standard therapy and by directly targeting aberrant biological processes involved in carcinogenesis.
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