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Jin X, Xu XE, Jiang YZ, Liu YR, Sun W, Guo YJ, Ren YX, Zuo WJ, Hu X, Huang SL, Shen HJ, Lan F, He YF, Hu GH, Di GH, He XH, Li DQ, Liu S, Yu KD, Shao ZM. The endogenous retrovirus-derived long noncoding RNA TROJAN promotes triple-negative breast cancer progression via ZMYND8 degradation. Sci Adv 2019; 5:eaat9820. [PMID: 30854423 PMCID: PMC6402854 DOI: 10.1126/sciadv.aat9820] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 01/23/2019] [Indexed: 05/03/2023]
Abstract
Human endogenous retroviruses (HERVs) play pivotal roles in the development of breast cancer. However, the detailed mechanisms of noncoding HERVs remain elusive. Here, our genome-wide transcriptome analysis of HERVs revealed that a primate long noncoding RNA, which we dubbed TROJAN, was highly expressed in human triple-negative breast cancer (TNBC). TROJAN promoted TNBC proliferation and invasion and indicated poor patient outcomes. We further confirmed that TROJAN could bind to ZMYND8, a metastasis-repressing factor, and increase its degradation through the ubiquitin-proteasome pathway by repelling ZNF592. TROJAN also epigenetically up-regulated metastasis-related genes in multiple cell lines. Correlations between TROJAN and ZMYND8 were subsequently confirmed in clinical samples. Furthermore, our study verified that antisense oligonucleotide therapy targeting TROJAN substantially suppressed TNBC progression in vivo. In conclusion, the long noncoding RNA TROJAN promotes TNBC progression and serves as a potential therapeutic target.
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Affiliation(s)
- Xi Jin
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Xiao-En Xu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Corresponding author. (Z.-M.S.); (X.-E.X.); (K.-D.Y.); (S.L.)
| | - Yi-Zhou Jiang
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Yi-Rong Liu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Wei Sun
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Ya-Jie Guo
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Yi-Xing Ren
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Wen-Jia Zuo
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Xin Hu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Sheng-Lin Huang
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Institutes of Biomedical Sciences, Fudan University, Shanghai, P. R. China
| | - Hong-Jie Shen
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, and Key Laboratory of Epigenetics, Department of Cellular and Genetic Medicine, School of Basic Medical Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, P. R. China
| | - Fei Lan
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, and Key Laboratory of Epigenetics, Department of Cellular and Genetic Medicine, School of Basic Medical Sciences and Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, P. R. China
| | - Yun-Fei He
- The Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, P. R. China
| | - Guo-Hong Hu
- The Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, P. R. China
| | - Gen-Hong Di
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
| | - Xiang-Huo He
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Institutes of Biomedical Sciences, Fudan University, Shanghai, P. R. China
| | - Da-Qiang Li
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Institutes of Biomedical Sciences, Fudan University, Shanghai, P. R. China
| | - Suling Liu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Institutes of Biomedical Sciences, Fudan University, Shanghai, P. R. China
- Corresponding author. (Z.-M.S.); (X.-E.X.); (K.-D.Y.); (S.L.)
| | - Ke-Da Yu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Corresponding author. (Z.-M.S.); (X.-E.X.); (K.-D.Y.); (S.L.)
| | - Zhi-Ming Shao
- Department of Breast Surgery, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Cancer Institute, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Department of Oncology, Shanghai Medical College, Fudan University, 270 Dong-An Road, Shanghai 200032, P. R. China
- Precision Cancer Medicine Center, Fudan University Shanghai Cancer Center, 270 Dong-An Road, Shanghai 200032, P. R. China
- Corresponding author. (Z.-M.S.); (X.-E.X.); (K.-D.Y.); (S.L.)
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