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Title
Japanese: 
English:Chemotherapy resistance due to epithelial-to-mesenchymal transition is caused by abnormal lipid metabolic balance 
Author
Japanese: Atsushi Matsumoto, 田中 拓哉, 小西玄一, Junichi Ikenouchi.  
English: Atsushi Matsumoto, Takuya Tanaka, Gen-ichi Konishi, Junichi Ikenouchi.  
Language English 
Journal/Book name
Japanese: 
English:eLife 
Volume, Number, Page Vol. 13        p. RP104374
Published date Jan. 12, 2026 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://elifesciences.org/articles/104374
 
DOI https://doi.org/10.7554/eLife.104374
Abstract Invasive cancer is defined by the loss of epithelial cell traits resulting from the ectopic expression of epithelial–mesenchymal transition (EMT)-related transcription factors such as Snail. Although EMT is known to impart chemoresistance to cancer cells, the precise molecular mechanisms remain elusive. We found that Snail expression confers chemoresistance by upregulating the cholesterol efflux pump ABCA1 as a countermeasure to the excess of cytotoxic free cholesterol relative to its major interaction partner in cellular membranes, sphingomyelin. This imbalance is introduced by the transcriptional repression of enzymes involved in the biosynthesis of sphingomyelin by Snail. Inhibiting esterification of cholesterol, which renders it inert, selectively suppresses growth of a xenograft model of Snail-positive kidney cancer. Our findings offer a new perspective on lipid-targeting strategies for invasive cancer therapy.

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