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Bei Y, Bramé L, Kirchner M, Fritsche-Guenther R, Kunz S, Bhattacharya A, Rusu MC, Gürgen D, Dubios FP, Köppke JK, Proba J, Wittstruck N, Sidorova OA, Chamorro González R, Dorado Garcia H, Brückner L, Xu R, Giurgiu M, Rodriguez-Fos E, Yu Q, Spanjaard B, Koche RP, Schmitt CA, Schulte JH, Eggert A, Haase K, Kirwan J, Hagemann AI, Mertins P, Dörr JR, Henssen AG. Passenger Gene Coamplifications Create Collateral Therapeutic Vulnerabilities in Cancer. Cancer Discov 2024; 14:492-507. [PMID: 38197697 PMCID: PMC10911929 DOI: 10.1158/2159-8290.cd-23-1189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/30/2023] [Accepted: 12/19/2023] [Indexed: 01/11/2024]
Abstract
DNA amplifications in cancer do not only harbor oncogenes. We sought to determine whether passenger coamplifications could create collateral therapeutic vulnerabilities. Through an analysis of >3,000 cancer genomes followed by the interrogation of CRISPR-Cas9 loss-of-function screens across >700 cancer cell lines, we determined that passenger coamplifications are accompanied by distinct dependency profiles. In a proof-of-principle study, we demonstrate that the coamplification of the bona fide passenger gene DEAD-Box Helicase 1 (DDX1) creates an increased dependency on the mTOR pathway. Interaction proteomics identified tricarboxylic acid (TCA) cycle components as previously unrecognized DDX1 interaction partners. Live-cell metabolomics highlighted that this interaction could impair TCA activity, which in turn resulted in enhanced mTORC1 activity. Consequently, genetic and pharmacologic disruption of mTORC1 resulted in pronounced cell death in vitro and in vivo. Thus, structurally linked coamplification of a passenger gene and an oncogene can result in collateral vulnerabilities. SIGNIFICANCE We demonstrate that coamplification of passenger genes, which were largely neglected in cancer biology in the past, can create distinct cancer dependencies. Because passenger coamplifications are frequent in cancer, this principle has the potential to expand target discovery in oncology. This article is featured in Selected Articles from This Issue, p. 384.
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Affiliation(s)
- Yi Bei
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Luca Bramé
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), Partner Site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Marieluise Kirchner
- Core Unit Proteomics, Berlin Institute of Health at Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Raphaela Fritsche-Guenther
- Core Unit Metabolomics, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Severine Kunz
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Technology Platform Electron Microscopy, Berlin, Germany
| | - Animesh Bhattacharya
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Mara-Camelia Rusu
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Technology Platform Electron Microscopy, Berlin, Germany
| | - Dennis Gürgen
- Experimental Pharmacology and Oncology (EPO), Berlin, Germany
| | - Frank P.B. Dubios
- Institute of pathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Julia K.C. Köppke
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Jutta Proba
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Nadine Wittstruck
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Olga Alexandra Sidorova
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Rocío Chamorro González
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Heathcliff Dorado Garcia
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Lotte Brückner
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Technology Platform Electron Microscopy, Berlin, Germany
| | - Robin Xu
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Mădălina Giurgiu
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Elias Rodriguez-Fos
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Qinghao Yu
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Bastiaan Spanjaard
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Richard P. Koche
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Clemens A. Schmitt
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Johannes H. Schulte
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Angelika Eggert
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), Partner Site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Kerstin Haase
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), Partner Site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jennifer Kirwan
- Core Unit Metabolomics, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Anja I.H. Hagemann
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), Partner Site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Philipp Mertins
- Core Unit Proteomics, Berlin Institute of Health at Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Jan R. Dörr
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), Partner Site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Berlin Institute of Health, Berlin, Germany
- Experimental and Clinical Research Center (ECRC) of the MDC and Charité Berlin, Berlin, Germany
| | - Anton G. Henssen
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), Partner Site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Technology Platform Electron Microscopy, Berlin, Germany
- Experimental and Clinical Research Center (ECRC) of the MDC and Charité Berlin, Berlin, Germany
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Eckl KM, Krieg P, Küster W, Traupe H, André F, Wittstruck N, Fürstenberger G, Hennies HC. Mutation spectrum and functional analysis of epidermis-type lipoxygenases in patients with autosomal recessive congenital ichthyosis. Hum Mutat 2006; 26:351-61. [PMID: 16116617 DOI: 10.1002/humu.20236] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Autosomal-recessive congenital ichthyosis (ARCI) is a clinically and genetically heterogeneous group of severe hereditary keratinization disorders characterized by intense scaling of the whole integument, and differences in color and shape. It is often associated with erythema. To date, six loci for ARCI have been mapped. Mutations in ALOXE3 and ALOX12B on chromosome 17p13, which code for two different epidermal lipoxygenases, were recently found in patients with ichthyosiform erythroderma from Turkey, France, and North Africa. Here we describe molecular and clinical findings in 17 families with ARCI originating from Central Europe, Turkey, and the Indian subcontinent, with mutations in ALOXE3 or ALOX12B. We identified 11 novel point mutations in ALOX12B (one nonsense mutation and 10 missense mutations) and four different inactivating mutations in ALOXE3. The gene products of ALOX12B and ALOXE3, the epidermal lipoxygenases 12R-LOX and eLOX3, respectively, are preferentially synthesized in the skin. They act in sequence to convert arachidonic acid via 12(R)-HPETE to the corresponding epoxyalcohol, 8(R)-hydroxy-11(R),12(R)-epoxyeicosatrienoic acid. To assess the impairment of enzyme activity, we expressed the mutated genes in vitro and determined the activity of the recombinant proteins toward their genuine substrates. All but one of the recombinant mutants were enzymatically inactive. The characterization of disease-causing mutations in ALOXE3 and ALOX12B and the resulting ARCI phenotypes did not result in clear diagnostic criteria; however, we found a first correlation between the genetic findings and the clinical presentation of ichthyosis.
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Affiliation(s)
- Katja-Martina Eckl
- Cologne Center for Genomics, Division of Dermatogenetics, University of Cologne, Cologne, Germany
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