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Al-Zoughbi W, Pichler M, Gorkiewicz G, Guertl-Lackner B, Haybaeck J, Jahn SW, Lackner C, Liegl-Atzwanger B, Popper H, Schauer S, Nusshold E, Kindt ASD, Trajanoski Z, Speicher MR, Haemmerle G, Zimmermann R, Zechner R, Vesely PW, Hoefler G. Loss of adipose triglyceride lipase is associated with human cancer and induces mouse pulmonary neoplasia. Oncotarget 2016; 7:33832-40. [PMID: 27213586 PMCID: PMC5085122 DOI: 10.18632/oncotarget.9418] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 04/02/2016] [Indexed: 01/22/2023] Open
Abstract
Metabolic reprogramming is a hallmark of cancer. Understanding cancer metabolism is instrumental to devise innovative therapeutic approaches. Anabolic metabolism, including the induction of lipogenic enzymes, is a key feature of proliferating cells. Here, we report a novel tumor suppressive function for adipose triglyceride lipase (ATGL), the rate limiting enzyme in the triglyceride hydrolysis cascade.In immunohistochemical analysis, non-small cell lung cancers, pancreatic adenocarcinoma as well as leiomyosarcoma showed significantly reduced levels of ATGL protein compared to corresponding normal tissues. The ATGL gene was frequently deleted in various forms of cancers. Low levels of ATGL mRNA correlated with significantly reduced survival in patients with ovarian, breast, gastric and non-small cell lung cancers. Remarkably, pulmonary neoplasia including invasive adenocarcinoma developed spontaneously in mice lacking ATGL pointing to an important role for this lipase in controlling tumor development.Loss of ATGL, as detected in several forms of human cancer, induces spontaneous development of pulmonary neoplasia in a mouse model. Our results, therefore, suggest a novel tumor suppressor function for ATGL and contribute to the understanding of cancer metabolism. We propose to evaluate loss of ATGL protein expression for the diagnosis of malignant tumors. Finally, modulation of the lipolytic pathway may represent a novel therapeutic approach in the treatment of human cancer.
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MESH Headings
- Adenocarcinoma/enzymology
- Adenocarcinoma/genetics
- Adenocarcinoma/pathology
- Adenocarcinoma of Lung
- Animals
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/genetics
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/metabolism
- Cell Transformation, Neoplastic/pathology
- Computational Biology
- Data Mining
- Databases, Genetic
- Down-Regulation
- Gene Expression Regulation, Enzymologic
- Gene Expression Regulation, Neoplastic
- Genetic Predisposition to Disease
- Humans
- Lipase/analysis
- Lipase/deficiency
- Lipase/genetics
- Lipolysis
- Lung Neoplasms/enzymology
- Lung Neoplasms/genetics
- Lung Neoplasms/pathology
- Mice, Inbred C57BL
- Mice, Knockout
- Neoplasms/enzymology
- Neoplasms/genetics
- Neoplasms/pathology
- Phenotype
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Affiliation(s)
- Wael Al-Zoughbi
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Martin Pichler
- Division of Oncology, Medical University of Graz, Graz, Austria
| | | | | | | | - Stephan W. Jahn
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Carolin Lackner
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | | | - Helmut Popper
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Silvia Schauer
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Elisa Nusshold
- Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Alida S. D. Kindt
- Biocenter, Division of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | - Zlatko Trajanoski
- Biocenter, Division of Bioinformatics, Medical University of Innsbruck, Innsbruck, Austria
| | | | | | - Robert Zimmermann
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Rudolf Zechner
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Paul W. Vesely
- Institute of Pathology, Medical University of Graz, Graz, Austria
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Gerald Hoefler
- Institute of Pathology, Medical University of Graz, Graz, Austria
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Guertl B, Senanayake U, Nusshold E, Leuschner I, Mannweiler S, Ebner B, Hoefler G. Lim1, an Embryonal Transcription Factor, Is Absent in Multicystic Renal Dysplasia, but Reactivated in Nephroblastomas. Pathobiology 2011; 78:210-9. [DOI: 10.1159/000326769] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Accepted: 02/17/2011] [Indexed: 12/19/2022] Open
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