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Zhao Y, Zhang L, Yang J, Li C, Li P. CPEB2 inhibits preeclampsia progression by regulating SSTR3 translation through polyadenylation. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167191. [PMID: 38648900 DOI: 10.1016/j.bbadis.2024.167191] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 11/08/2023] [Revised: 04/08/2024] [Accepted: 04/15/2024] [Indexed: 04/25/2024]
Abstract
AIMS Trophoblast cell dysfunction is one of the important factors leading to preeclampsia (PE). Cytoplasmic polyadenylation element-binding 2 (CPEB2) has been found to be differentially expressed in PE patients, but whether it mediates PE process by regulating trophoblast cell function is unclear. METHODS The expression of CPEB2 and somatostatin receptor 3 (SSTR3) was detected by quantitative real-time PCR, Western blot (WB) and immunofluorescence staining. Cell functions were analyzed by CCK-8 assay, EdU assay, flow cytometry and transwell assay. Epithelial-mesenchymal transition (EMT)-related protein levels were detected by WB. The interaction of CPEB2 and SSTR3 was confirmed by RIP assay, dual-luciferase reporter assay and PCR poly(A) tail assay. Animal experiments were performed to explore the effect of CPEB2 on PE progression in vivo, and the placental tissues of rat were used for H&E staining, immunohistochemical staining and TUNEL staining. RESULTS CPEB2 was lowly expressed in PE patients. CPEB2 upregulation accelerated trophoblast cell proliferation, migration, invasion and EMT, while its knockdown had an opposite effect. CPEB2 bound to the CPE site in the 3'-UTR of SSTR3 mRNA to suppress SSTR3 translation through reducing poly(A) tails. Besides, SSTR3 overexpression suppressed trophoblast cell proliferation, migration, invasion and EMT, while its silencing accelerated trophoblast cell functions. However, these effects could be reversed by CPEB2 upregulation and knockdown, respectively. In vivo experiments, CPEB2 overexpression relieved histopathologic changes, inhibited apoptosis, promoted proliferation and enhanced EMT in the placenta of PE rat by decreasing SSTR3 expression. CONCLUSION CPEB2 inhibited PE progression, which promoted trophoblast cell functions by inhibiting SSTR3 translation through polyadenylation.
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Affiliation(s)
- Yanhua Zhao
- Department of Obstetrics, Xiangya Hospital of Central South University, Changsha City, Hunan Province 410008, PR China
| | - Liran Zhang
- Department of Obstetrics, Xiangya Hospital of Central South University, Changsha City, Hunan Province 410008, PR China
| | - Jingjing Yang
- Department of Obstetrics, Xiangya Hospital of Central South University, Changsha City, Hunan Province 410008, PR China
| | - Caiwen Li
- Department of Obstetrics, Xiangya Hospital of Central South University, Changsha City, Hunan Province 410008, PR China
| | - Ping Li
- Department of Obstetrics, Xiangya Hospital of Central South University, Changsha City, Hunan Province 410008, PR China; Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha City, Hunan Province 410008, PR China.
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Zeng P, Wang F, Long X, Cao Y, Wen F, Li J, Luo Z. CPEB2 enhances cell growth and angiogenesis by upregulating ARPC5 mRNA stability in multiple myeloma. J Orthop Surg Res 2023; 18:384. [PMID: 37231521 DOI: 10.1186/s13018-023-03835-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/06/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND The process of multiple myeloma (MM) is the result of the combined action of multiple genes. This study aims to explore the role and mechanism of cytoplasmic polyadenylation element binding protein2 (CPEB2) in MM progression. METHODS The mRNA and protein expression levels of CPEB2 and actin-related protein 2/3 complex subunit 5 (ARPC5) were assessed by quantitative real-time PCR and western blot analysis. Cell function was determined by cell counting kit 8 assay, soft-agar colony formation assay, flow cytometry and tube formation assay. Fluorescent in situ hybridization assay was used to analyze the co-localization of CPEB2 and ARPC5 in MM cells. Actinomycin D treatment and cycloheximide chase assay were performed to assess the stability of ARPC5. The interaction between CPEB2 and ARPC5 was confirmed by RNA immunoprecipitation assay. RESULTS CPEB2 and ARPC5 mRNA and protein expression levels were upregulated in CD138+ plasma cells from MM patients and cells. CPEB2 downregulation reduced MM cell proliferation, angiogenesis, and increased apoptosis, while its overexpression had an opposite effect. CPEB2 and ARPC5 were co-localized at cell cytoplasm and could positively regulate ARPC5 expression by mediating its mRNA stability. ARPC5 overexpression reversed the suppressive effect of CPEB2 knockdown on MM progression, and it knockdown also abolished CPEB2-promoted MM progression. Besides, CPEB2 silencing also reduced MM tumor growth by decreasing ARPC5 expression. CONCLUSION Our results indicated that CPEB2 increased ARPC5 expression through promoting its mRNA stability, thereby accelerating MM malignant process.
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Affiliation(s)
- Piaorong Zeng
- The First Affiliated Hospital, Department of Hematology, Hengyang Medical School, University of South China, No.69, Chuanshan Road, Hengyang, 421001, Hunan Province, People's Republic of China
| | - Fujue Wang
- The First Affiliated Hospital, Department of Hematology, Hengyang Medical School, University of South China, No.69, Chuanshan Road, Hengyang, 421001, Hunan Province, People's Republic of China
| | - Xingxing Long
- The First Affiliated Hospital, Department of Hematology, Hengyang Medical School, University of South China, No.69, Chuanshan Road, Hengyang, 421001, Hunan Province, People's Republic of China
| | - Yixiong Cao
- The First Affiliated Hospital, Department of Hematology, Hengyang Medical School, University of South China, No.69, Chuanshan Road, Hengyang, 421001, Hunan Province, People's Republic of China
| | - Feng Wen
- The First Affiliated Hospital, Department of Hematology, Hengyang Medical School, University of South China, No.69, Chuanshan Road, Hengyang, 421001, Hunan Province, People's Republic of China
| | - Junjun Li
- The First Affiliated Hospital, Department of Hematology, Hengyang Medical School, University of South China, No.69, Chuanshan Road, Hengyang, 421001, Hunan Province, People's Republic of China
| | - Zeyu Luo
- The First Affiliated Hospital, Department of Hematology, Hengyang Medical School, University of South China, No.69, Chuanshan Road, Hengyang, 421001, Hunan Province, People's Republic of China.
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Wang C, Yang Y, Wu X, Li J, Liu K, Fang D, Li B, Shan G, Mei X, Wang F, Mei Y. Reciprocal modulation of long noncoding RNA EMS and p53 regulates tumorigenesis. Proc Natl Acad Sci U S A 2022; 119:e2111409119. [PMID: 35022235 PMCID: PMC8784137 DOI: 10.1073/pnas.2111409119] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
p53 plays a central role in tumor suppression. Emerging evidence suggests long noncoding RNA (lncRNA) as an important class of regulatory molecules that control the p53 signaling. Here, we report that the oncogenic lncRNA E2F1 messenger RNA (mRNA) stabilizing factor (EMS) and p53 mutually repress each other's expression. EMS is negatively regulated by p53. As a direct transcriptional repression target of p53, EMS is surprisingly shown to inhibit p53 expression. EMS associates with cytoplasmic polyadenylation element-binding protein 2 (CPEB2) and thus, disrupts the CPEB2-p53 mRNA interaction. This disassociation attenuates CPEB2-mediated p53 mRNA polyadenylation and suppresses p53 translation. Functionally, EMS is able to exert its oncogenic activities, at least partially, via the CPEB2-p53 axis. Together, these findings reveal a double-negative feedback loop between p53 and EMS, through which p53 is finely controlled. Our study also demonstrates a critical role for EMS in promoting tumorigenesis via the negative regulation of p53.
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Affiliation(s)
- Chenfeng Wang
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Yang Yang
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Xianning Wu
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Jingxin Li
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Kaiyue Liu
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Debao Fang
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Bingyan Li
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Ge Shan
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Xinyu Mei
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China;
| | - Fang Wang
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China;
| | - Yide Mei
- The First Affiliated Hospital of University of Science and Technology of China (USTC), Hefei National Laboratory for Physical Sciences at Microscale, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China;
- The Chinese Academy of Sciences (CAS) Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
- Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China, Hefei 230027, China
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Feng J, Li Y, Zhu L, Zhao Q, Li D, Li Y, Wu T. STAT1 mediated long non-coding RNA LINC00504 influences radio-sensitivity of breast cancer via binding to TAF15 and stabilizing CPEB2 expression. Cancer Biol Ther 2021; 22:630-639. [PMID: 34908514 DOI: 10.1080/15384047.2021.1964320] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Radiotherapy plays important roles in the treatment of breast cancer (BC), which develops from malignant cells in the breast. Long non-coding RNAs (lncRNAs) have been reported to be implicated in radio-resistance or radio-sensitivity of human cancer, which includes breast cancer. Nevertheless, long intergenic non-protein coding RNA 0504 (LINC00504) has not been investigated in BC. In our study, from RT-qPCR analysis, LINC00504 was found to be up-regulated in BC cells. By conducting in vitro assays, it was confirmed that the knockdown of LINC00504 could enhance the radio-sensitivity of BC cells. The regulatory mechanism of LINC00504 in BC was also verified by chromatin immunoprecipitation (ChIP), RNA immunoprecipitation (RIP) and luciferase reporter assays. From the experimental results, we knew that the up-regulation of LINC00504 was mediated by signal transducer and activator of transcription 1 (STAT1). Moreover, LINC00504 stabilized the expression of cytoplasmic polyadenylation element-binding protein 2 (CPEB2) via binding to TATA-box binding protein associated factor 15 (TAF15). Furthermore, rescue assays validated that LINC00504 participated in regulating the radio-sensitivity of BC cells via up-regulating CPEB2. In summary, our study disclosed that STAT1 could mediate LINC00504 and weaken the radio-sensitivity of BC cells via binding to TAF15 and stabilizing CPEB2 expression.
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Affiliation(s)
- Jinchun Feng
- Department of Breast Surgery, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yan Li
- Department of Breast Surgery, Hami City Second People's Hospital, Hami, Xinjiang, China
| | - Liping Zhu
- Department of Breast Surgery, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Qian Zhao
- Department of Breast Surgery, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Dan Li
- Department of Breast Surgery, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yuxiang Li
- Department of Breast Surgery, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Tao Wu
- Department of Breast Surgery, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
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Wang H, Zhao Y, Luo R, Bian X, Wang Y, Shao X, Li YX, Liu M, Wang YL. A positive feedback self-regulatory loop between miR-210 and HIF-1α mediated by CPEB2 is involved in trophoblast syncytialization: implication of trophoblast malfunction in preeclampsia†. Biol Reprod 2021; 102:560-570. [PMID: 31616934 DOI: 10.1093/biolre/ioz196] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 05/09/2019] [Revised: 09/09/2019] [Accepted: 10/04/2019] [Indexed: 11/13/2022] Open
Abstract
The pregnancy complication preeclampsia is directly associated with hypoxic stress and insufficient trophoblast cell differentiation. The hypoxia-inducible microRNA (miRNA), miR-210, has been identified as a significantly up-regulated miRNA in preeclamptic placenta, and evidence in other cell types has indicated a feedback regulation between miR-210 and hypoxia-inducible factor-1α (HIF-1α) under hypoxic condition. It remains unclear whether and how the feedback loop between miR-210 and HIF-1α may contribute to trophoblast dysfunction in preeclampsia. Here, we proved that cytoplasmic polyadenylation element-binding 2 (CPEB2) was a direct target of miR-210 in human trophoblast. CPEB2 could inhibit the translation of hypoxia-induced HIF-1α via directly binding the cytoplasmic polyadenylation element (CPE) site in the 3'-untranslated region (UTR) of HIF-1α mRNA. The increase in the HIF-1α level upon hypoxia treatment could be efficiently reversed by miR-210 inhibitor. In addition, CPEB2 was primarily expressed in villous syncytiotrophoblasts, and the suppression of trophoblast cell syncytialization by miR-210 could be significantly rescued by CPEB2 overexpression. In preeclamptic placenta, the expression of CPEB2 was evidently lower than normal pregnant control, and the miR-210 level was aberrantly higher and trophoblast syncytialization was limited. The findings revealed a positive feedback loop between miR-210 and HIF-1α that is mediated by CPEB2 in human trophoblasts, and demonstrated a mechanism underlying the insufficient trophoblast syncytialization in preeclampsia under hypoxic stress.
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Affiliation(s)
- Hao Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Peking University Third Hospital, Beijing, China
| | - Yangyu Zhao
- Peking University Third Hospital, Beijing, China
| | - Rongcan Luo
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - Xiaotao Bian
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | | | - Xuan Shao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yu-Xia Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Ming Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yan-Ling Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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Di J, Zhao G, Wang H, Wu Y, Zhao Z, Zhu B, Zhang Y, Zheng J, Liu Y, Hu Y. A p53/ CPEB2 negative feedback loop regulates renal cancer cell proliferation and migration. J Genet Genomics 2021; 48:606-617. [PMID: 34362680 DOI: 10.1016/j.jgg.2021.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 01/06/2021] [Revised: 05/25/2021] [Accepted: 05/29/2021] [Indexed: 02/04/2023]
Abstract
The tumor suppressor p53 transactivates the expression of multiple genes to exert its multifaceted functions and ultimately maintains genome stability. Thus, cancer cells develop various mechanisms to diminish p53 expression and bypass the cell cycle checkpoint. In this study, we identified the gene encoding RNA-binding protein cytoplasmic polyadenylation element-binding protein 2 (CPEB2) as a p53 target. In turn, CPEB2 decreases p53 messenger RNA stability and translation to fine-tune p53 expression. Specifically, we showed that CPEB2 binds the cytoplasmic polyadenylation elements in the p53 3'-untranslated region, and the RNA recognition motif and zinc finger (ZF) domains of CPEB2 are required for this binding. Furthermore, we found that CPEB2 was upregulated in renal cancer tissues and promotes the renal cancer cell proliferation and migration. The oncogenic effect of CPEB2 is partially dependent on negative feedback regulation of p53. Overall, we identify a novel regulatory feedback loop between p53 and CPEB2 and demonstrate that CPEB2 promotes tumor progression by inactivating p53, suggesting that CPEB2 is a potential therapeutic target in human renal cancer.
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Affiliation(s)
- Jiehui Di
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Guang Zhao
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Hui Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Yaoyao Wu
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Zhongjun Zhao
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Bao Zhu
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Yanping Zhang
- Department of Radiation and Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, 450 West Drive, Chapel Hill, NC 27599-7461, USA
| | - Junnian Zheng
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.
| | - Yong Liu
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China.
| | - Ying Hu
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China; Shenzhen Graduate School of Harbin Institute of Technology, Shenzhen 518055, China.
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Lai YT, Chao HW, Lai ACY, Lin SH, Chang YJ, Huang YS. CPEB2-activated PDGFRα mRNA translation contributes to myofibroblast proliferation and pulmonary alveologenesis. J Biomed Sci 2020; 27:52. [PMID: 32295602 PMCID: PMC7160907 DOI: 10.1186/s12929-020-00643-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 03/26/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Alveologenesis is the final stage of lung development to form air-exchanging units between alveoli and blood vessels. Genetic susceptibility or hyperoxic stress to perturb this complicated process can cause abnormal enlargement of alveoli and lead to bronchopulmonary dysplasia (BPD)-associated emphysema. Platelet-derived growth factor receptor α (PDGFRα) signaling is crucial for alveolar myofibroblast (MYF) proliferation and its deficiency is associated with risk of BPD, but posttranscriptional mechanisms regulating PDGFRα synthesis during lung development remain largely unexplored. Cytoplasmic polyadenylation element-binding protein 2 (CPEB2) is a sequence-specific RNA-binding protein and translational regulator. Because CPEB2-knockout (KO) mice showed emphysematous phenotypes, we investigated how CPEB2-controlled translation affects pulmonary development and function. METHODS Respiratory and pulmonary functions were measured by whole-body and invasive plethysmography. Histological staining and immunohistochemistry were used to analyze morphology, proliferation, apoptosis and cell densities from postnatal to adult lungs. Western blotting, RNA-immunoprecipitation, reporter assay, primary MYF culture and ectopic expression rescue were performed to demonstrate the role of CPEB2 in PDGFRα mRNA translation and MYF proliferation. RESULTS Adult CPEB2-KO mice showed emphysema-like dysfunction. The alveolar structure in CPEB2-deficient lungs appeared normal at birth but became simplified through the alveolar stage of lung development. In CPEB2-null mice, we found reduced proliferation of MYF progenitors during alveolarization, abnormal deposition of elastin and failure of alveolar septum formation, thereby leading to enlarged pulmonary alveoli. We identified that CPEB2 promoted PDGFRα mRNA translation in MYF progenitors and this positive regulation could be disrupted by H2O2, a hyperoxia-mimetic treatment. Moreover, decreased proliferating ability in KO MYFs due to insufficient PDGFRα expression was rescued by ectopic expression of CPEB2, suggesting an important role of CPEB2 in upregulating PDGFRα signaling for pulmonary alveologenesis. CONCLUSIONS CPEB2-controlled translation, in part through promoting PDGFRα expression, is indispensable for lung development and function. Since defective pulmonary PDGFR signaling is a key feature of human BPD, CPEB2 may be a risk factor for BPD.
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Affiliation(s)
- Yen-Ting Lai
- Institute of Biomedical Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Taipei, 11529, Taiwan
| | - Hsu-Wen Chao
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Alan Chuan-Ying Lai
- Institute of Biomedical Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Taipei, 11529, Taiwan
| | - Shu-Hui Lin
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Ya-Jen Chang
- Institute of Biomedical Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Taipei, 11529, Taiwan.
| | - Yi-Shuian Huang
- Institute of Biomedical Sciences, Academia Sinica, 128 Sec. 2, Academia Rd, Taipei, 11529, Taiwan.
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Tordjman J, Majumder M, Amiri M, Hasan A, Hess D, Lala PK. Tumor suppressor role of cytoplasmic polyadenylation element binding protein 2 ( CPEB2) in human mammary epithelial cells. BMC Cancer 2019; 19:561. [PMID: 31185986 DOI: 10.1186/s12885-019-5771-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/29/2019] [Indexed: 11/10/2022] Open
Abstract
Background Over-expression of cyclooxygenase (COX)-2 promotes breast cancer progression by multiple mechanisms, including induction of stem-like cells (SLC). Combined gene expression and microRNA microarray analyses of empty vector vs COX-2- transfected COX-2 low MCF7 breast cancer cell line identified two COX-2-upregulated microRNAs, miR-526b and miR-655, both found to be oncogenic and SLC-promoting. Cytoplasmic Polyadenylation Element-Binding Protein 2 (CPEB2) was the single common target of both microRNAs, the functions of which remain controversial. CPEB2 has multiple isoforms (A-F), and paradoxically, a high B/A ratio was reported to impart anoikis-resistance and metastatic phenotype in triple- negative breast cancer cells. We tested whether CPEB2 is a tumor suppressor in mammary epithelial cells. Methods We knocked-out CPEB2 in the non-tumorigenic mammary epithelial cell line MCF10A by CRISPR/Cas9-double nickase approach, and knocked-down CPEB2 with siRNAs in the poorly malignant MCF7 cell line, both lines being high CPEB2-expressing. The resultant phenotypes for oncogenity were tested in vitro for both lines and in vivo for CPEB2KO cells. Finally, CPEB2 expression was compared between human breast cancer and non-tumor breast tissues. Results CPEB2 (isoform A) expression was inversely correlated with COX-2 or the above microRNAs in COX-2-divergent breast cancer cell lines. CPEB2KO MCF10A cells exhibited oncogenic properties including increased proliferation, migration, invasion, EMT (decreased E-Cadherin, increased Vimentin, N-Cadherin, SNAI1, and ZEB1) and SLC phenotype (increased tumorsphere formation and SLC marker-expression). Tumor-suppressor p53 protein was shown to be a novel translationally-regulated target of CPEB2, validated with polysome profiling. CPEB2KO, but not wild-type cells produced lung colonies upon intravenous injection and subcutaneous tumors and spontaneous lung metastases upon implantation at mammary sites in NOD/SCID/IL2Rϒ-null mice, identified with HLA immunostaining. Similarly, siRNA-mediated CPEB2 knockdown in MCF7 cells promoted oncogenic properties in vitro. Human breast cancer tissues (n = 105) revealed a lower mRNA expression for CPEB2 isoform A and also a lower A/B isoform ratio than in non-tumour breast tissues (n = 20), suggesting that CPEB2A accounts for the tumor-suppressor functions of CPEB2. Conclusions CPEB2, presumably the isoform A, plays a key role in suppressing tumorigenesis in mammary epithelial cells by repressing EMT, migration, invasion, proliferation and SLC phenotype, via multiple targets, including a newly-identified translational target p53. Electronic supplementary material The online version of this article (10.1186/s12885-019-5771-5) contains supplementary material, which is available to authorized users.
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Prochazkova B, Komrskova P, Kubelka M. CPEB2 Is Necessary for Proper Porcine Meiotic Maturation and Embryonic Development. Int J Mol Sci 2018; 19:ijms19103138. [PMID: 30322039 PMCID: PMC6214008 DOI: 10.3390/ijms19103138] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/02/2018] [Accepted: 10/09/2018] [Indexed: 02/07/2023] Open
Abstract
Oocyte meiotic maturation and embryogenesis are some of the most important physiological processes that occur in organisms, playing crucial roles in the preservation of life in all species. The post-transcriptional regulation of maternal messenger ribonucleic acids (mRNAs) and the post-translational regulation of proteins are critical in the control of oocyte maturation and early embryogenesis. Translational control affects the basic mechanism of protein synthesis, thus, knowledge of the key components included in this machinery is required in order to understand its regulation. Cytoplasmic polyadenylation element binding proteins (CPEBs) bind to the 3′-end of mRNAs to regulate their localization and translation and are necessary for proper development. In this study we examined the expression pattern of cytoplasmic polyadenylation element binding protein 2 (CPEB2) both on the mRNA (by real-time quantitative reverse transcription polymerase chain reaction, qRT-PCR) and protein (by Western blotting, WB) level, as well as its localization during the meiotic maturation of porcine oocytes and early embryonic development by immunocytochemistry (ICC). For the elucidation of its functions, CPEB2 knockdown by double-strand RNA (dsRNA) was used. We discovered that CPEB2 is expressed during all stages of porcine meiotic maturation and embryonic development. Moreover, we found that it is necessary to enable a high percentage of oocytes to reach the metaphase II (MII) stage, as well as for the production of good-quality parthenogenetic blastocysts.
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Affiliation(s)
- Barbora Prochazkova
- Department of Veterinary Sciences, Czech University of Life Sciences, Kamycka 129, 165 00 Prague, Czech Republic.
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburska 89, 277 21 Libechov, Czech Republic.
| | - Pavla Komrskova
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburska 89, 277 21 Libechov, Czech Republic.
| | - Michal Kubelka
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburska 89, 277 21 Libechov, Czech Republic.
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10
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Chen HF, Hsu CM, Huang YS. CPEB2-dependent translation of long 3'-UTR Ucp1 mRNA promotes thermogenesis in brown adipose tissue. EMBO J 2018; 37:embj.201899071. [PMID: 30177570 DOI: 10.15252/embj.201899071] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 01/23/2018] [Revised: 08/13/2018] [Accepted: 08/15/2018] [Indexed: 12/18/2022] Open
Abstract
Expression of mitochondrial proton transporter uncoupling protein 1 (UCP1) in brown adipose tissue (BAT) is essential for mammalian thermogenesis. While human UCP1 mRNA exists in a long form only, alternative polyadenylation creates two different isoforms in mice with 10% of UCP1 mRNA found in the long form (Ucp1L) and ~90% in the short form (Ucp1S). We generated a mouse model expressing only Ucp1S and found that it showed impaired thermogenesis due to a 60% drop in UCP1 protein levels, suggesting that Ucp1L is more efficiently translated than Ucp1S. In addition, we found that β3 adrenergic receptor signaling promoted the translation of mouse Ucp1L and human Ucp1 in a manner dependent on cytoplasmic polyadenylation element binding protein 2 (CPEB2). CPEB2-knockout mice showed reduced UCP1 levels and impaired thermogenesis in BAT, which was rescued by ectopic expression of CPEB2. Hence, long 3'-UTR Ucp1 mRNA translation activated by CPEB2 is likely conserved and important in humans to produce UCP1 for thermogenesis.
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Affiliation(s)
- Hui-Feng Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chen-Ming Hsu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yi-Shuian Huang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
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11
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Lam CSC, Ng L, Chow AKM, Wan TMH, Yau S, Cheng NSM, Wong SKM, Man JHW, Lo OSH, Foo DCC, Poon JTC, Pang RWC, Law WL. Identification of microRNA 885-5p as a novel regulator of tumor metastasis by targeting CPEB2 in colorectal cancer. Oncotarget 2018; 8:26858-26870. [PMID: 28460469 PMCID: PMC5432302 DOI: 10.18632/oncotarget.15844] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 02/20/2017] [Indexed: 12/22/2022] Open
Abstract
Colorectal cancer is the third most common cancer in the world and liver is the most frequent site of distant metastasis with poor prognosis. The aim of this study is to investigate microRNAs leading to liver metastasis. We applied microarray analysis and quantitative PCR to identify and validate dysregulated miRNAs in liver metastases when compared to primary CRCs. Functional significance and the underlying molecular mechanism of selected miRNA was demonstrated by a series of in vitro and in vivo assays. Our microarray analysis and subsequent quantitative PCR validation revealed that miR-885-5p was strongly up-regulated in liver metastases and in CRC cell-lines derived from distant metastases. Overexpression of miR-885-5p significantly induced cell migration, cell invasion, formation of stress fibre in vitro and development of liver and lung metastases in vivo. MiR-885-5p induced metastatic potential of CRC by repressing cytoplasmic polyadenylation element binding protein 2 transcription through directly binding to two binding sites on its 3′ untranslated region, and consequently led to up-regulation of TWIST1 and hence epithelial-mesenchymal transition. Our findings demonstrated the overexpression of miR-885-5p in liver metastasis and its roles in inducing CRC metastasis, potentiating development of miR-885-5p inhibitor to treat advanced CRC in the future.
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Affiliation(s)
- Colin Siu-Chi Lam
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Lui Ng
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Ariel Ka-Man Chow
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong.,Centre for Cancer Research, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Timothy Ming-Hun Wan
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Simon Yau
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Nathan Shiu-Man Cheng
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Sunny Kit-Man Wong
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Johnny Hon-Wai Man
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Oswens Siu-Hung Lo
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Dominic Chi-Chung Foo
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Jensen Tung-Chung Poon
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Roberta Wen-Chi Pang
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong.,Centre for Cancer Research, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Wai-Lun Law
- Division of Colorectal Surgery, Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong.,Centre for Cancer Research, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
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12
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Li C, Gao Y, Li Y, Ding D. TUG1 mediates methotrexate resistance in colorectal cancer via miR-186/ CPEB2 axis. Biochem Biophys Res Commun 2017; 491:552-557. [PMID: 28302487 DOI: 10.1016/j.bbrc.2017.03.042] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 03/12/2017] [Indexed: 12/31/2022]
Abstract
Colorectal cancer (CRC) is a common malignancy, most of which remain unresponsive to chemotherapy. Methotrexate (MTX) is one of the earliest cytotoxic drugs and serves as an anti-metabolite and anti-folate chemotherapy for various types of cancer. However, MTX resistance prevents its clinical application in cancer therapy. Thereby, overcoming the drug resistance is an alternative strategy to maximize the efficacy of MTX therapies in clinics. Long non-coding RNAs (lncRNAs) have gained widespread attention in recent years. More and more evidences have shown that lncRNAs play regulatory roles in various biological activities and disease progression including drug resistance in cancer cells. Here, we observed lncRNA TUG1 was associated to the MTX resistant in colorectal cancer cells. Firstly, quantitative analysis indicated that TUG1 was significantly increased in tumors which were resistant to MTX treatment. TUG1 knockdown re-sensitized the MTX resistance in colorectal cancer cells, which were MTX-resistant colorectal cell line. Furthermore, bioinformatics analysis showed that miR-186 could directly bind to TUG1, suggesting TUG1 might worked as a ceRNA to sponge miR-186. Extensively, our study also showed that CPEB2 was the direct target of miR-186 in colorectal cancer cells. Taken together, our study suggests that lncRNA TUG1 mediates MTX resistance in colorectal cancer via miR-186/CPEB2 axis.
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Affiliation(s)
- Changfeng Li
- Department of Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, PR China
| | - Yongjian Gao
- Department of Gastrointestinal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, PR China
| | - Yongchao Li
- Department of Gastrointestinal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, PR China
| | - Dayong Ding
- Department of Gastrointestinal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, PR China.
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13
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DeLigio JT, Lin G, Chalfant CE, Park MA. Splice variants of cytosolic polyadenylation element-binding protein 2 ( CPEB2) differentially regulate pathways linked to cancer metastasis. J Biol Chem 2017; 292:17909-17918. [PMID: 28904175 DOI: 10.1074/jbc.m117.810127] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 08/03/2017] [Revised: 09/05/2017] [Indexed: 11/06/2022] Open
Abstract
The translational regulator cytosolic polyadenylation element-binding protein 2 (CPEB2) has two isoforms, CPEB2A and CPEB2B, derived by alternative splicing of RNA into a mature form that either includes or excludes exon 4. Previously, we reported that this splicing event is highly dysregulated in aggressive forms of breast cancers, which overexpress CPEB2B. The loss of CPEB2A with a concomitant increase in CPEB2B was also required for breast cancer cells to resist cell death because of detachment (anoikis resistance) and metastasize in vivo To examine the mechanism by which CPEB2 isoforms mediate opposing effects on cancer-related phenotypes, we used next generation sequencing of triple negative breast cancer cells in which the isoforms were specifically down-regulated. Down-regulation of the CPEB2B isoform inhibited pathways driving the epithelial-to-mesenchymal transition and hypoxic response, whereas down-regulation of the CPEB2A isoform did not have this effect. Examining key nodes of these pathways showed that CPEB2B induced the expression of regulatory DNA trans-factors (e.g. HIF1α and TWIST1). Specifically, CPEB2B functioned as a translational activator of TWIST1 and HIF1α. Functional studies showed that specific down-regulation of either HIF1α or TWIST1 inhibited the ability of CPEB2B to induce the acquisition of anoikis resistance and drive metastasis. Overall, this study demonstrates that CPEB2 alternative splicing is a major regulator of key cellular pathways linked to anoikis resistance and metastasis.
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Affiliation(s)
- James T DeLigio
- From the Department of Biochemistry and Molecular Biology and
| | - Grace Lin
- From the Department of Biochemistry and Molecular Biology and
| | - Charles E Chalfant
- From the Department of Biochemistry and Molecular Biology and .,VCU Massey Cancer Center Cancer Cell Signaling Program, Virginia Commonwealth University (VCU), Richmond, Virginia 23298.,Research Service, Hunter Holmes McGuire Veterans Administration Medical Center, Richmond, Virginia 23249.,VCU Institute of Molecular Medicine, Richmond, Virginia 23298.,VCU Johnson Center for Critical Care and Pulmonary Research, Richmond, Virginia 23298.,Department of Cell Biology, Microbiology, and Molecular Biology, University of South Florida, Tampa, Florida 33620.,Research Service, James A. Haley Veterans Hospital, Tampa, Florida 33612, and.,The Moffitt Cancer Center, Tampa, Florida 33612
| | - Margaret A Park
- From the Department of Biochemistry and Molecular Biology and .,VCU Massey Cancer Center Cancer Cell Signaling Program, Virginia Commonwealth University (VCU), Richmond, Virginia 23298.,Research Service, Hunter Holmes McGuire Veterans Administration Medical Center, Richmond, Virginia 23249.,Department of Cell Biology, Microbiology, and Molecular Biology, University of South Florida, Tampa, Florida 33620.,Research Service, James A. Haley Veterans Hospital, Tampa, Florida 33612, and
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14
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Abstract
Recent studies reported that long non-coding RNA (lncRNA) might play critical roles in regulating chemo-resistant of multiple types of cancer. This study aimed to investigate whether long non-coding RNA CCAT1 was involved in Paclitaxel resistance in nasopharyngeal carcinoma (NPC). qRT-PCR was used for testing the expression of CCAT1, miR-181a and CPEB2 in tumor tissues and NPC cancers. NPC cells were transfected with siRNAs to suppress the mRNA level of CCAT1 in NPC cells. MTT assays and flow cytometry analysis were used to assess the sensitivity of paclitaxel in NPC cells. Luciferase reporter assays were used to examine the interaction of CCAT1 or CPEB2 to miR-181a. Our findings revealed that the upregulated CCAT1 results in significantly enhancing paclitaxel resistance in nasopharyngeal cancer cells. Bioinformatics analysis and luciferase reporter assay indicated that the upregulated CCAT1 sponges miR-181a in NPC cells. Furthermore, RNA immuno-precipitation assays showed that miR-181a could directly bind to CCAT1 mRNA in NPC cells. We restored miR-181a in NPC cells, and found restoration of miR-181a re-sensitized the NPC cells to paclitaxel in vitro. In addition, our results also showed that miR-181a was a modulator of paclitaxel sensitivity due to its regulative effect on cell apoptosis via targeting CPEB2 in NPC cells. Taken together, lncRNA CCAT1 regulates the sensitivity of paclitaxel in NPC cells via miR-181a/CPEB2 axis.
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Affiliation(s)
- Qiaosu Wang
- a The E.N.T Department , The First affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China
| | - Wenjing Zhang
- a The E.N.T Department , The First affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China
| | - Shaojuan Hao
- a The E.N.T Department , The First affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China
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