| Home > Publications database > Ceramide synthesis mediates colorectal cancer metastasis through a YAP-driven regenerative program. |
| Journal Article | DKFZ-2026-02386 |
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2026
American Association for the Advancement of Science
Washington, DC
Abstract: Mechanisms by which primary tumor cells acquire metastatic capability through metabolic and signaling adaptations are currently poorly understood. We demonstrate that tumor-intrinsic ceramide metabolism, amplified by dietary fat, initiates colorectal cancer metastasis. We observed that dietary fat exposure triggers a sustained increase in de novo ceramide biosynthesis, mediated by the dihydroceramide desaturase Degs1. Ceramide accumulation activates yes-associated protein (YAP) through protein phosphatase 2A (PP2A)-mediated dephosphorylation, promoting a durable shift toward a distinct YAP-driven regenerative (YAP-DR) program, marked by Basp1, that promotes metastasis. Selective elimination of Basp1high cancer cells prevented metastatic seeding. Degs1 loss reduced ceramide levels, YAP activity, YAP-DR signatures, and metastasis without affecting primary tumor growth, whereas blocking ceramide degradation enhanced YAP activity and metastasis. These findings identify ceramide-induced YAP signaling as a key mediator of metastatic initiation, operating independently of primary tumor expansion.
Keyword(s): Ceramides: biosynthesis (MeSH) ; Colorectal Neoplasms: pathology (MeSH) ; Colorectal Neoplasms: metabolism (MeSH) ; Animals (MeSH) ; Adaptor Proteins, Signal Transducing: metabolism (MeSH) ; YAP-Signaling Proteins (MeSH) ; Protein Phosphatase 2: metabolism (MeSH) ; Transcription Factors: metabolism (MeSH) ; Phosphoproteins: metabolism (MeSH) ; Signal Transduction (MeSH) ; Oxidoreductases: metabolism (MeSH) ; Oxidoreductases: genetics (MeSH) ; Neoplasm Metastasis (MeSH) ; Humans (MeSH) ; Mice (MeSH) ; Phosphorylation (MeSH) ; Cell Line, Tumor (MeSH) ; Cell Cycle Proteins (MeSH) ; Ceramides ; Adaptor Proteins, Signal Transducing ; YAP-Signaling Proteins ; Protein Phosphatase 2 ; Transcription Factors ; Phosphoproteins ; Oxidoreductases ; Yap1 protein, mouse ; dihydroceramide desaturase ; YAP1 protein, human ; Cell Cycle Proteins
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