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ResearchIn-Press PreviewCell biologyGastroenterology
Open Access | 10.1172/JCI191855
1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
Find articles by Gu, W. in: PubMed | Google Scholar
1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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Hoare, M.
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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1Children’s Research Institute, Department of Pediatrics and Internal Medici, Simmons Comprehensive Cancer Center, Children’s Research Institute Mouse Genome Engineering Core, University of Texas Southwestern Medical Center, Dallas, United States of America
2Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States of America
3Department of Pathology, University of Texas Southwestern Medical Center, Dallas, United States of America
4Cancer Genome Project, Wellcome Sanger Institute, Hinxton, United Kingdom
5Department of Medicine, University of Cambridge Early Cancer Institute, Hutchison Research Centre, Cambridge Biomedical Campus, Cambridge, United Kingdom
6Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, United States of America
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Zhu, H.
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Published July 10, 2025 - More info
Somatic mutations that increase clone fitness or resist disease are positively selected, but the impact of these mutations on organismal health remains unclear. We previously showed that Tbx3 deletion increases hepatocyte fitness within fatty livers. Here, we detected TBX3 somatic mutations in patients with metabolic dysfunction-associated steatotic liver disease (MASLD). In mice, Tbx3 deletion protected against, whereas Tbx3 overexpression exacerbated MASLD. Tbx3 deletion reduced lipid overload by accelerating VLDL secretion. Choline deficient diets, which block VLDL secretion, abrogated this protective effect. TBX3 transcriptionally suppressed the conventional secretory pathway and cholesterol biosynthesis. Hdlbp is a direct target of TBX3 that is responsible for the altered VLDL secretion. In contrast to wild-type TBX3, the TBX3 I155S and A280S mutations found in patients failed to suppress VLDL secretion. In conclusion, TBX3 mutant clones expand during MASLD through increased lipid disposal, demonstrating that clonal fitness can benefit the liver at the cost of hyperlipidemia.