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Muto T, Guillamot M, Yeung J, Fang J, Bennett J, Nadorp B, Lasry A, Redondo LZ, Choi K, Gong Y, Walker CS, Hueneman K, Bolanos LC, Barreyro L, Lee LH, Greis KD, Vasyliev N, Khodadadi-Jamayran A, Nudler E, Lujambio A, Lowe SW, Aifantis I, Starczynowski DT. TRAF6 functions as a tumor suppressor in myeloid malignancies by directly targeting MYC oncogenic activity. Cell Stem Cell 2022; 29:298-314.e9. [PMID: 35045331 PMCID: PMC8822959 DOI: 10.1016/j.stem.2021.12.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/05/2021] [Accepted: 12/15/2021] [Indexed: 02/05/2023]
Abstract
Clonal hematopoiesis (CH) is an aging-associated condition characterized by the clonal outgrowth of pre-leukemic cells that acquire specific mutations. Although individuals with CH are healthy, they are at an increased risk of developing myeloid malignancies, suggesting that additional alterations are needed for the transition from a pre-leukemia stage to frank leukemia. To identify signaling states that cooperate with pre-leukemic cells, we used an in vivo RNAi screening approach. One of the most prominent genes identified was the ubiquitin ligase TRAF6. Loss of TRAF6 in pre-leukemic cells results in overt myeloid leukemia and is associated with MYC-dependent stem cell signatures. TRAF6 is repressed in a subset of patients with myeloid malignancies, suggesting that subversion of TRAF6 signaling can lead to acute leukemia. Mechanistically, TRAF6 ubiquitinates MYC, an event that does not affect its protein stability but rather represses its functional activity by antagonizing an acetylation modification.
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Affiliation(s)
- Tomoya Muto
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229 USA.,These authors contributed equally
| | - Maria Guillamot
- Department of Pathology and Perlmutter Cancer Center, NYU School of Medicine, New York, NY 10016, USA.,These authors contributed equally
| | - Jennifer Yeung
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina College of Pharmacy, Columbia, SC 29208, USA
| | - Jing Fang
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina College of Pharmacy, Columbia, SC 29208, USA
| | - Joshua Bennett
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina College of Pharmacy, Columbia, SC 29208, USA
| | - Bettina Nadorp
- Department of Pathology and Perlmutter Cancer Center, NYU School of Medicine, New York, NY 10016, USA
| | - Audrey Lasry
- Department of Pathology and Perlmutter Cancer Center, NYU School of Medicine, New York, NY 10016, USA
| | - Luna Zea Redondo
- Department of Pathology and Perlmutter Cancer Center, NYU School of Medicine, New York, NY 10016, USA
| | - Kwangmin Choi
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229 USA
| | - Yixiao Gong
- Department of Pathology and Perlmutter Cancer Center, NYU School of Medicine, New York, NY 10016, USA
| | - Callum S. Walker
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229 USA
| | - Kathleen Hueneman
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229 USA
| | - Lyndsey C. Bolanos
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229 USA
| | - Laura Barreyro
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229 USA
| | - Lynn H. Lee
- Division of Oncology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229 USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229 USA
| | - Kenneth D. Greis
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, 45229 USA
| | - Nikita Vasyliev
- Department of Biochemistry and Molecular Pharmacology, NYU School of Medicine, New York, NY 10016, USA
| | - Alireza Khodadadi-Jamayran
- Applied Bioinformatics Laboratories and Genome Technology Center, NYU School of Medicine, New York, NY 10016, USA
| | - Evgeny Nudler
- Department of Biochemistry and Molecular Pharmacology, NYU School of Medicine, New York, NY 10016, USA
| | - Amaia Lujambio
- Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Scott W. Lowe
- Department of Cancer Biology and Genetics, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.,Howard Hughes Medical Institute, Chevy Chase, MD 201815, USA
| | - Iannis Aifantis
- Department of Pathology and Perlmutter Cancer Center, NYU School of Medicine, New York, NY 10016, USA.
| | - Daniel T. Starczynowski
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229 USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229 USA.,Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, 45229 USA.,Lead contact,Correspondence: (I.A.), (D.T.S.)
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