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103
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Yang X, Ye H, He M, Zhou X, Sun N, Guo W, Lin X, Huang H, Lin Y, Yao R, Wang H. LncRNA PDIA3P interacts with c-Myc to regulate cell proliferation via induction of pentose phosphate pathway in multiple myeloma. Biochem Biophys Res Commun 2018; 498:207-213. [PMID: 29501744 DOI: 10.1016/j.bbrc.2018.02.211] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 02/28/2018] [Indexed: 12/24/2022]
Abstract
Multiple myeloma (MM), the second most common hematologic malignancy, is an incurable disease characterized by the accumulation of malignant plasma cells within the bone marrow. Though great progresses have been made in understanding the mechanisms of MM, metabolic plasticity and drug resistance remain largely unknown. In this study, we found lncRNA Protein disulfide isomerase family A member 3 pseudogene 1 (PDIA3P) is highly expressed in MM and is associated with the survival rate of MM patients. PDIA3P regulates MM growth and drug resistance through Glucose 6-phosphate dehydrogenase (G6PD) and the pentose phosphate pathway (PPP). Mechanistically, we revealed that PDIA3P interacts with c-Myc to enhance its transactivation activity and binding to G6PD promoter, stimulating G6PD expression and PPP flux. Our study identified PDIA3P as a novel c-Myc interacting lncRNA and elucidated crucial roles for PDIA3P in metabolic regulation of MM, providing a potential therapeutic target for MM patients.
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Affiliation(s)
- Xiangchou Yang
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Haihao Ye
- Department of Cardiology, Wenzhou TCM Hospital, Wenzhou, 325000, China
| | - Muqing He
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiaohai Zhou
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Ni Sun
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Wenjian Guo
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiaoji Lin
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - He Huang
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Ying Lin
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Rongxin Yao
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Hong Wang
- Department of Rheumatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
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105
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Li C, Wan L, Liu Z, Xu G, Wang S, Su Z, Zhang Y, Zhang C, Liu X, Lei Z, Zhang HT. Long non-coding RNA XIST promotes TGF-β-induced epithelial-mesenchymal transition by regulating miR-367/141-ZEB2 axis in non-small-cell lung cancer. Cancer Lett 2018; 418:185-195. [PMID: 29339211 DOI: 10.1016/j.canlet.2018.01.036] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 01/08/2018] [Accepted: 01/09/2018] [Indexed: 12/19/2022]
Abstract
Growing evidence shows that lncRNA XIST functions as an oncogene accelerating tumor progression. Transforming growth factor β (TGF-β)-induced epithelial-mesenchymal transition (EMT) plays a key role in tumor metastasis. However, it is still unclear whether lncRNA XIST is implicated in TGF-β-induced EMT and influences cell invasion and metastasis in non-small-cell lung cancer (NSCLC). Here, we observed increased expression of lncRNA XIST and ZEB2 mRNA in metastatic NSCLC tissues. Knockdown of lncRNA XIST inhibited ZEB2 expression, and repressed TGF-β-induced EMT and NSCLC cell migration and invasion. Being in consistent with the in vitro findings, the in vivo experiment of metastasis showed that knockdown of lncRNA XIST inhibited pulmonary metastasis of NSCLC cells in mice. In addition, knockdown of ZEB2 expression can inhibit TGF-β-induced EMT and NSCLC cell migration and invasion. Mechanistically, lncRNA XIST and ZEB2 were targets of miR-367 and miR-141. Furthermore, both miR-367 and miR-141 expression can be upregulated by knockdown of lncRNA XIST. Taken together, our study reveals that lncRNA XIST can promote TGF-β-induced EMT and cell invasion and metastasis by regulating miR-367/miR-141-ZEB2 axis in NSCLC.
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Affiliation(s)
- Chang Li
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Cardiothoracic Surgery, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Liang Wan
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zeyi Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Guangquan Xu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, China
| | - Shengjie Wang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Basic Medicine, Kangda College of Nanjing Medical University, Lianyungang, 222000, China
| | - Zhiyue Su
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Yingxi Zhang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Cuijuan Zhang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xia Liu
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zhe Lei
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, Jiangsu, 215123, China.
| | - Hong-Tao Zhang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, Jiangsu, 215123, China.
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