An Olive Oil-Based High-Fat Diet Promotes Obesity-Driven Metastasis of Triple-Negative Breast Cancer.

ABSTRACT: Obesity is strongly associated with triple-negative breast cancer (TNBC). A better understanding of the molecular mechanisms driving obesity-induced TNBC progression could facilitate the development of precision dietary intervention strategies. In this study, we used murine models of obesity induced by different high-fat diets (HFD) to examine their impact on TNBC progression. Compared with a low-fat diet, both cocoa butter and olive oil HFDs induced similar levels of obesity. However, only the olive oil HFD-induced obesity increased TNBC stemness and lung metastasis. Mechanistically, oleic acid (OA) in the olive oil HFD facilitated TNBC metastasis by activating the protein kinase C (PKC)-aldehyde dehydrogenase (ALDH) pathway. Furthermore, fatty acid-binding protein 5 (FABP5) in TNBC cells

SUBMITTER: Avellino A 

PROVIDER: S-EPMC12502211 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature