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Wang XW, Jiang YH, Ye W, Shao CF, Xie JJ, Li X. SIRT1 promotes the progression and chemoresistance of colorectal cancer through the p53/ miR-101/KPNA3 axis. Cancer Biol Ther 2023; 24:2235770. [PMID: 37575080 PMCID: PMC10431729 DOI: 10.1080/15384047.2023.2235770] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 08/15/2023] Open
Abstract
INTRODUCTION Sirtuin 1 (SIRT1) is a key modulator in several types of cancer, including colorectal cancer (CRC). Here, we probed into the molecular mechanism of SIRT1 regulating the development and chemoresistance of CRC. METHODS Differentially expressed genes related to the growth, metastasis and chemoresistance of CRC were identified by bioinformatics analysis. The expression of SIRT1 in clinical tissues from CRC patients and CRC cell lines was detected by RT-qPCR. Interactions among SIRT1, p53, miR-101 and KPNA3 were analyzed. The effect of SIRT1 on the cell viability, migration, invasion, epithelial-mesenchymal transformation and chemoresistance to 5-FU was evaluated using loss-function investigations in CRC cells. Finally, a xenograft model of CRC and a metastasis model were constructed for further exploration of the roles of SIRT1 in vivo. RESULTS SIRT1 was elevated in CRC tissues and cell lines. SIRT1 decreased p53 via deacetylation, and consequently downregulated the expression of miR-101 while increasing that of the miR-101 target gene KPNA3. By this mechanism, SIRT1 enhanced the proliferation, migration, invasion, epithelial-mesenchymal transformation, and resistance to 5-FU of CRC cells. In addition, in vivo data also showed that SIRT1 promoted the growth, metastasis and chemoresistance to 5-FU of CRC cells via regulation of the p53/miR-101/KPNA3 axis. CONCLUSIONS In conclusion, SIRT1 can function as an oncogene in CRC by accelerating the growth, metastasis and chemoresistance to 5-FU of CRC cells through the p53/miR-101/KPNA3 axis.
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Affiliation(s)
- Xiao-Wei Wang
- Department of Anorectal Surgery, The First People’s Hospital of Wenling, Wenling, China
| | - Ying-Hao Jiang
- Department of Anorectal Surgery, The First People’s Hospital of Wenling, Wenling, China
| | - Wei Ye
- Department of Anorectal Surgery, The First People’s Hospital of Wenling, Wenling, China
| | - Chun-Fa Shao
- Department of Anorectal Surgery, The First People’s Hospital of Wenling, Wenling, China
| | - Jian-Jin Xie
- Department of Anorectal Surgery, The First People’s Hospital of Wenling, Wenling, China
| | - Xia Li
- Department of Anorectal Surgery, The First People’s Hospital of Wenling, Wenling, China
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2
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Abstract
MiRNAs regulated most genes expression, which were proved important in various tumors. In this study, we want to investigate miR-101 effect and molecular mechanism on pancreatic cancer (PC), the research about this was blank now. RT-PCR analysis showed that miR-101 expression was declined in PC. MTT assay found that miR-101 mimic suppressed cell viability, while suppressing miR-101 facilitated cell proliferation. Transwell assay showed that miR-101 mimic inhibited cell invasion, but promoted cell invasion by miR-101 inhibitor. With TargetScanHuman's help, we verified STMN1 as a specific target of miR-101 and luciferase reporter assay was carried out to further confirm this discovery. STMN1 expression was reduced by miR-101 mimic and increased by miR-101 inhibitor. We next found that STMN1 was elevated in PC and its expression was negatively correlated with miR-101 expression. Furthermore, STMN1 siRNA curbed cell proliferation and invasion, which was opposite to miR-101 inhibitor effect on PC progression and STMN1 siRNA attenuated miR-101 inhibitor effect on cell proliferation and invasion. In conclusion, miR-101 inhibited PC cell proliferation and invasion via regulating STMN1, which provided a potential therapeutic for PC patients.
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Affiliation(s)
- Lin Zhu
- Department of Radiology, Dongfang Hospital Affiliated to Shanghai Tongji University, Shanghai, China
| | - Yinan Chen
- Department of Radiology, Shanghai Chest Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Kai Nie
- Department of Radiology, Shanghai Changzheng Hospital Affiliated to the Second Military Medical University, Shanghai, China
| | - Yongxin Xiao
- Department of Radiology, Shanghai Changzheng Hospital Affiliated to the Second Military Medical University, Shanghai, China
| | - Hong Yu
- Department of Radiology, Dongfang Hospital Affiliated to Shanghai Tongji University, Shanghai, China
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3
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Wang N, Duan L, Ding J, Cao Q, Qian S, Shen H, Qi J. MicroRNA-101 protects bladder of BOO from hypoxia-induced fibrosis by attenuating TGF-β-smad2/3 signaling. IUBMB Life 2018; 71:235-243. [PMID: 30549198 DOI: 10.1002/iub.1968] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 08/15/2018] [Accepted: 10/01/2018] [Indexed: 11/07/2022]
Abstract
Bladder outlet obstruction is a common disease, which always evokes urinary bladder wall remodeling significantly. It has been suggested that bladder outlet obstruction can make the bladder progression from inflammation to fibrosis, and hypoxia may play a vital role. It has been found the expression of microRNA-101 varied in bladder after BOO. But what role microRNA-101 and hypoxia play in bladder is not well known. This study is to investigate the mechanism of microRNA-101 and hypoxia in fibrosis of bladder after BOO. We found the expression of microRNA-101 and hif-1α increased in bladder after BOO. Hypoxia could promote the expression of extracellular matrix subtypes and microRNA-101 in BSMCs. When microRNA-101b was translated into BSMCs, the smad2/3 signaling pathway was found to repress. Dual luciferase reporter detected that microRNA-101b attenuated the TGF-β signaling pathway by inhibiting the expression of TGFβR1. Then, we conclude microRNA-101b is induced by hypoxia and represses fibrosis of BSMCs by inhibiting the expression of TGFβR1 through TGF-β signaling pathway, and it may be an anti-fibrotic miRNA for therapy. © 2018 IUBMB Life, 71(1):235-243, 2019.
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Affiliation(s)
- Ning Wang
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liujian Duan
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Ding
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qifeng Cao
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Subo Qian
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Haibo Shen
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Qi
- Department of Urology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Cheng Y, Chang Q, Zheng B, Xu J, Li H, Wang R. LncRNA XIST promotes the epithelial to mesenchymal transition of retinoblastoma via sponging miR-101. Eur J Pharmacol 2018; 843:210-216. [PMID: 30472203 DOI: 10.1016/j.ejphar.2018.11.028] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [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: 07/24/2018] [Revised: 11/17/2018] [Accepted: 11/21/2018] [Indexed: 12/11/2022]
Abstract
Accumulating evidence demonstrated that abnormal expression of long non-coding RNAs (lncRNAs) was closely associated with cancer development including retinoblastoma (RB). LncRNA X inactive specific transcript (XIST) has been found to function as an oncogene or a tumor suppressor in several cancers. However, the role and underlying mechanism of XIST in RB have not been clarified. The expression of XIST, microRNA (miR)- 101, zinc finger E-box binding homeobox (ZEB) 1, and ZEB2 was detected in human RB tissues and cell lines. The effects of XIST on the proliferation, migration, invasion, epithelial to mesenchymal transition (EMT), and apoptosis of RB cells were evaluated after downregulation of XIST. Furthermore, the mechanism of XIST was mainly focused on miR-101/ZEB1 or ZEB2 signaling. We found the expression of XIST, ZEB1 and ZEB2 was increased, whereas miR-101 was reduced in RB tissues and cells. Knockdown of XIST significantly suppressed the proliferation, migration, invasion and EMT, but promoted the apoptosis and caspase-3 activity. Moreover, we found that XIST functioned as a competing endogenous RNA (ceRNA) for miR-101 to regulate the de-repression of its endogenous targets ZEB1 and ZEB2. In conclusion, these findings suggest that XIST may facilitate the progression of RB through acting as a ceRNA for miR-101 to mediate the expression of ZEB1 and ZEB2. This may provide novel therapeutic options for RB.
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Affiliation(s)
- Yan Cheng
- Ophthalmology of Xi'an First Hospital, Xi'an, Shaanxi 710002, China
| | - Qing Chang
- Ophthalmology of Xi'an First Hospital, Xi'an, Shaanxi 710002, China
| | - Bo Zheng
- Ophthalmology of Xi'an First Hospital, Xi'an, Shaanxi 710002, China.
| | - Jing Xu
- Ophthalmology of Xi'an First Hospital, Xi'an, Shaanxi 710002, China
| | - Hongsong Li
- Ophthalmology of Xi'an First Hospital, Xi'an, Shaanxi 710002, China
| | - Ruoxin Wang
- Ophthalmology of Xi'an First Hospital, Xi'an, Shaanxi 710002, China
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Yao ZS, Li C, Liang D, Jiang XB, Tang JJ, Ye LQ, Yuan K, Ren H, Yang ZD, Jin DX, Zhang SC, Ding JY, Tang YC, Xu JX, Chen K, Xie WX, Guo DQ, Cui JC. Diagnostic and prognostic implications of serum miR-101 in osteosarcoma. Cancer Biomark 2018; 22:127-133. [PMID: 29630525 PMCID: PMC6004928 DOI: 10.3233/cbm-171103] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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] [Indexed: 12/29/2022]
Abstract
Blood-circulating microRNAs (miRNAs) have been reported to be used as potential biomarkers in various cancers. MiR-101 has been found to act as a tumor suppressor in many tumor types, but little is known for osteosarcoma. The purpose of this study was to investigate miR-101 expression in osteosarcoma patients and assess its correlation with clinical features and prognosis. Serum samples from 152 osteosarcoma patients and 70 healthy controls were detected using quantitative reverse-transcription polymerase chain reaction (qRT-PCR). The data showed that miR-101 expression levels were remarkably underexpressed in serum samples from osteosarcoma patients compared to controls, and the post-treatment serum miR-101 expression was significantly higher than that in the pre-treatment expression. Low serum miR-101 expression was positively associated with advanced clinical stage and distant metastasis. Receiver operating characteristic (ROC) curve analysis showed that serum miR-101 could serve as a useful marker for osteosarcoma diagnosis, with a high sensitivity and specificity. Moreover, patients with high miR-101 expression had longer overall survival and recurrence free survival than those with low miR-101 expression. In addition, both univariate and multivariate analyses showed that serum miR-101 downregulation was associated with shorter overall survival and recurrence free survival. Our present results implicated serum miR-101 might be a useful biomarker for the clinical diagnosis and prognosis of osteosarcoma.
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Affiliation(s)
- Z-S Yao
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - C Li
- Departments of Clinical Laboratory, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - D Liang
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - X-B Jiang
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - J-J Tang
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - L-Q Ye
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - K Yuan
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - H Ren
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - Z-D Yang
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - D-X Jin
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - S-C Zhang
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - J-Y Ding
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - Y-C Tang
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - J-X Xu
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - K Chen
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - W-X Xie
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - D-Q Guo
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - J-C Cui
- Departments of Spinal Surgery, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
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Abstract
Abnormal angiogenesis is critically involved in tumor progression and metastasis including endometrial cancer and is regulated by microRNAs such as microRNA-101 (miR-101). We hypothesize that miR-101 expression is disrupted in endometrial cancer and modulation of miR-101 levels is sufficient to regulate tumor growth through angiogenesis. We examined the expression levels of miR-101 and factors involved in angiogenesis in the patients with endometrial cancer. We also overexpressed or inhibited miR-101 in RL-95-2 cells and examined their effects on cell toxicity and tumor growth. Finally, we determined if miR-101 regulated tumorigenesis through cyclooxygenase-2 (COX-2). We found that miR-101 levels were significantly reduced. Factors involved in angiogenesis included vascular endothelial growth factor-A (VEGF-A), thrombospondin-1 (TSP-1), cyclooxygenase-2 (COX-2), prostaglandin E2 (PGE2), and aromatase (P450arom), which were increased in endometrial carcinoma. Modulation of miR-101 level was sufficient to affect tumor growth. Finally, we found that the effects of miR-101 inhibition on tumor growth were suppressed by COX-2 inhibition. Our results suggest that modulating miR-101 and COX-2 levels or their activity may be a potential therapeutic strategy for endometrial cancer.
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Affiliation(s)
- Ying Liu
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - Haiyan Li
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China.
| | - Congying Zhao
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - Hanbing Jia
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
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7
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Liu N, Zhang L, Wang Z, Cheng Y, Zhang P, Wang X, Wen W, Yang H, Liu H, Jin W, Zhang Y, Tu Y. MicroRNA-101 inhibits proliferation, migration and invasion of human glioblastoma by targeting SOX9. Oncotarget 2017; 8:19244-19254. [PMID: 27911279 PMCID: PMC5386681 DOI: 10.18632/oncotarget.13706] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [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: 06/29/2016] [Accepted: 11/22/2016] [Indexed: 12/23/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common primary malignant tumors originating in the brain parenchyma. At present, GBM patients have a poor prognosis despite the continuous progress in therapeutic technologies including surgery, radiotherapy, photodynamic therapy, and chemotherapy. Recent studies revealed that miR-101 was remarkably down-regulated in kinds of human cancers and was associated with aggressive tumor cell proliferation and stem cell self-renewal. Data also showed that miR-101 was down-regulated in primary glioma samples and cell lines, but the underlying molecular mechanism of the deregulation of miR-101 in glioma remained largely unknown. In this study, we found that miR-101 could inhibit the proliferation and invasion of glioma cells both in vitro and in vivo by directly targeting SOX9 [sex-determining region Y (SRY)-box9 protein]. Silencing of SOX9 exerted similar effects with miR-101 overexpression on glioma cells proliferation and invasion. Quantitative reverse transcription PCR and Western blotting analysis revealed a negative relationship between miR-101 and SOX9 in human glioma U251MG and U87MG cells, and the luciferase assay indicated that miR-101 altered SOX9 expression by directly targeting on 3'UTR. Taken together, our findings suggest that miR-101 regulates glioma proliferation, migration and invasion via directly down-regulating SOX9 both in vitro and in vivo, and miR-101 may be a potential therapeutic target for future glioma treatment.
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Affiliation(s)
- Nan Liu
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - Lei Zhang
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China.,Department of Orthopedics, Xi'an Children's Hospital, Xi'an 710003, China
| | - Zhen Wang
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - Yingduan Cheng
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China.,Department of Research Office, Cipher Ground, North Brunswick, NJ 08902, USA
| | - Pengxing Zhang
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - Xin Wang
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Weihong Wen
- Department of Immunology, Fourth Military Medical University, Xi'an 710032, China
| | - Hongwei Yang
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Hui Liu
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - Weilin Jin
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, Key Laboratory for Thin Film and Microfabrication Technology of Ministry of Education, School of Electronic Information and Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yongsheng Zhang
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - Yanyang Tu
- Department of Experimental Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China.,Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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Wang J, Zeng H, Li H, Chen T, Wang L, Zhang K, Chen J, Wang R, Li Q, Wang S. MicroRNA-101 Inhibits Growth, Proliferation and Migration and Induces Apoptosis of Breast Cancer Cells by Targeting Sex-Determining Region Y-Box 2. Cell Physiol Biochem 2017; 43:717-732. [PMID: 28946143 DOI: 10.1159/000481445] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 12/30/2016] [Accepted: 07/18/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Increasing evidence has demonstrated that microRNAs play a critical role in breast cancer (BC) progression. microRNA-101 (miR-101) has been considered a tumor suppressive miRNA in different cancer types. This study aimed to investigate miR-101 expression in BC tissues and to investigate its roles in BC progression that are mediated by Sex-determining region Y-box 2 (SOX2), a critical oncogene in various cancers. METHODS qRT-PCR and immunohistochemistry were performed to detect miR-101 and SOX2 expression in BC tissues and paired normal tissues or BC cell lines. MTT, transwell migration, wound healing, colony formation, flow cytometric and xenograft assays were performed to determine the influence of miR-101 and SOX2 on the malignant behaviors of BC cells in vitro and in vivo. RESULTS miR-101 was significantly downregulated in BC tissues and cell lines. miR-101 overexpression inhibited the malignant behaviors of BC cells, both in vitro and in vivo. miR-101 downregulation had the converse effect. A miR-101 binding site was identified by luciferase reporter assay in the 3'UTR of SOX2. SOX2 was upregulated in BC tissues and cell lines, and its upregulation was associated with lymph node metastasis, pathological grade and TNM classification. SOX2 knockdown mimicked the effects of miR-101 overexpression on the malignant behaviors of BC cells, while SOX2 overexpression mitigated the miR-101-induced inhibition of these effects. CONCLUSIONS Our study revealed that miR-101 plays a critical role in suppressing tumor progression by directly targeting SOX2.
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Affiliation(s)
- Jingjie Wang
- Department of General Surgery, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Huijuan Zeng
- Department of General Surgery, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Hanjun Li
- Department of General Surgery, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Tao Chen
- Department of General Surgery, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Lulu Wang
- Department of General Surgery, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Kai Zhang
- Department of Medical Oncology, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Jing Chen
- Department of Medical Oncology, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Rui Wang
- Department of Medical Oncology, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Qiurong Li
- Department of General Surgery, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
| | - Shaohua Wang
- Department of General Surgery, Jinling Hospital, Medical school of Nanjing University, Nanjing, China
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Li Z, Xu C, Ding B, Gao M, Wei X, Ji N. Long non-coding RNA MALAT1 promotes proliferation and suppresses apoptosis of glioma cells through derepressing Rap1B by sponging miR-101. J Neurooncol 2017; 134:19-28. [PMID: 28551849 DOI: 10.1007/s11060-017-2498-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [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: 11/02/2016] [Accepted: 05/20/2017] [Indexed: 01/17/2023]
Abstract
Long non-coding RNAs (lncRNAs) have been recently shown to be dysregulated and closely related to several cancers. Here, we aimed to elucidate the function and the possible molecular mechanisms of lncRNA Metastasis-associated lung Adenocarcinoma transcript-1 (MALAT1) in human glioma. Quantitative real-time PCR (qRT-PCR) was used to detect the expressions of MALAT1, miR-101 and Rap1B mRNA in U251 and U87 cells. The protein level of Rap1B was examined by western blot assays. Moreover, the proliferation and apoptosis of U251 and U87 cells were determined by CCK-8 assay and flow cytometry analysis, respectively. Additionally, the targets of miR-101 were identified by target prediction and luciferase reporter assays. The results demonstrated that MALAT1 and Rap1B were upregulated, while miR-101 expression was downregulated in glioma cell lines U251 and U87. MALAT1 and Rap1B knockdown could inhibit proliferation and induce apoptosis of glioma cells. Moreover, MALAT1 promoted the Rap1B expression by sponging miR-101 in U251 and U87 cells. Furthermore, miR-101 downregulation or Rap1B overexpression reversed the proliferation inhibitory and apoptosis induction of glioma cell lines caused by MALAT1 knockdown. Taken together, MALAT1 promotes proliferation and suppresses apoptosis of glioma cells through derepressing Rap1B by sponging miR-101. The present study elucidates a novel MALAT1-miR-101-Rap1B regulatory axis in glioma, contributing to a better understanding of the glioma pathogenesis and providing a promising therapeutic target for glioma patients.
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Affiliation(s)
- Zhenjiang Li
- Department of Neurosurgery, Huaihe Hospital of Henan University, No.1 Baogonghu North Road, Gulou District, Kaifeng, 475000, China.
| | - Chenyang Xu
- Department of Neurosurgery, Huaihe Hospital of Henan University, No.1 Baogonghu North Road, Gulou District, Kaifeng, 475000, China
| | - Bingqian Ding
- Department of Neurosurgery, Huaihe Hospital of Henan University, No.1 Baogonghu North Road, Gulou District, Kaifeng, 475000, China.
| | - Ming Gao
- Department of Neurosurgery, Huaihe Hospital of Henan University, No.1 Baogonghu North Road, Gulou District, Kaifeng, 475000, China
| | - Xinting Wei
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450003, China
| | - Nan Ji
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, 100071, China
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10
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Lin C, Huang F, Shen G, Yiming A. MicroRNA-101 regulates the viability and invasion of cervical cancer cells. Int J Clin Exp Pathol 2015; 8:10148-10155. [PMID: 26617722 PMCID: PMC4637537] [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] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/23/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Cervical cancer has the second highest morbidity and mortality rates of any malignancy in women worldwide, and it is one of the leading causes of death in Uygur women in Xinjiang China. MicroRNAs are involved in cancer development and progression. Previously, we found that miR-101 is significantly down-regulated in cervical cancer tissues from Uyghur women. The underlying pathophysiology and relevance to tumorigenesis of miR-101 is still largely unknown. The purpose of this study was to elucidate the molecular mechanisms of miR-101 regulation of cervical cancer cell viability and invasion. MATERIALS AND METHODS The expression of miR-101 in cervical cancer cell line (SiHa) was detected by real-time PCR. A miR-101 mimic was overexpressed in SiHa cells, and MTT assays were performed to determine the impact on cell proliferation. Cell would heal assays and flow cytometry were used to detect migratory ability and cellular apoptosis, respectively. Immunohistochemistry was performed to assess protein expression of the miR-101 target gene COX-2. RESULTS MiR-101 was endogenously expressed in SiHa cells, and alterations in its expression had profound effects on cellular migration and invasion efficiency. Overexpression of miR-101 decreased proliferation in the MTT assay (the mimics at 490 nm absorbance is lower 60% than normal, and decreased cellular motility in the cell would healing assay (transfected: 37 ± 2 m, pre-transfected 184 ± 2 m). Apoptosis rate was significantly higher with overexpression of miR-101 relative to control (transfected: 76.6%, pre-transfected: 3.5%) (P < 0.05). The expression of Cox-2 was decreased in transfected cells. CONCLUSIONS MiR-101 likely acts as a tumor suppressor in cervical cancer. Overexpression of miR-101 decreased expression of its target gene Cox-2 and inhibited proliferation and invasion, and promoted apoptosis to suppress tumorigenicity. MiR-101 is a promising new target for the development of therapeutic strategies for the clinical treatment of cervical cancer.
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Affiliation(s)
- Chen Lin
- Department of Pathology, Basic Medical Sciences, Xinjiang Medical UniversityUrumqi, Xinjiang, China
| | - Fei Huang
- Department of Pathology, The Affiliated Tumor Hospital of Xinjiang Medical UniversityUrumqi, Xinjiang, China
| | - Guqun Shen
- The Third Gynecologic, The Affiliated Tumor Hospital of Xinjiang Medical UniversityUrumqi, Xinjiang, China
| | - Adilijiang Yiming
- Department of Anatomy, Basic Medical Sciences, Xinjiang Medical UniversityUrumqi, Xinjiang, China
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11
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Vella S, Pomella S, Leoncini PP, Colletti M, Conti B, Marquez VE, Strillacci A, Roma J, Gallego S, Milano GM, Capogrossi MC, Bertaina A, Ciarapica R, Rota R. MicroRNA-101 is repressed by EZH2 and its restoration inhibits tumorigenic features in embryonal rhabdomyosarcoma. Clin Epigenetics 2015; 7:82. [PMID: 26251675 PMCID: PMC4527101 DOI: 10.1186/s13148-015-0107-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 12/21/2014] [Accepted: 07/02/2015] [Indexed: 12/22/2022] Open
Abstract
Background Rhabdomyosarcoma (RMS) is a pediatric soft tissue sarcoma arising from myogenic precursors that have lost their capability to differentiate into skeletal muscle. The polycomb-group protein EZH2 is a Lys27 histone H3 methyltransferase that regulates the balance between cell proliferation and differentiation by epigenetically silencing muscle-specific genes. EZH2 is often over-expressed in several human cancers acting as an oncogene. We previously reported that EZH2 inhibition induces cell cycle arrest followed by myogenic differentiation of RMS cells of the embryonal subtype (eRMS). MiR-101 is a microRNA involved in a negative feedback circuit with EZH2 in different normal and tumor tissues. To that, miR-101 can behave as a tumor suppressor in several cancers by repressing EZH2 expression. We, therefore, evaluated whether miR-101 is de-regulated in eRMS and investigated its interplaying with EZH2 as well as its role in the in vitro tumorigenic potential of these tumor cells. Results Herein, we report that miR-101 is down-regulated in eRMS patients and in tumor cell lines compared to their controls showing an inverse pattern of expression with EZH2. We also show that miR-101 is up-regulated in eRMS cells following both genetic and pharmacological inhibition of EZH2. In turn, miR-101 forced expression reduces EZH2 levels as well as restrains the migratory potential of eRMS cells and impairs their clonogenic and anchorage-independent growth capabilities. Finally, EZH2 recruitment to regulatory region of miR-101-2 gene decreases in EZH2-silenced eRMS cells. This phenomenon is associated to reduced H3K27me3 levels at the same regulatory locus, indicating that EZH2 directly targets miR-101 for repression in eRMS cells. Conclusions Altogether, our data show that, in human eRMS, miR-101 is involved in a negative feedback loop with EZH2, whose targeting has been previously shown to halt eRMS tumorigenicity. They also demonstrate that the re-induction of miR-101 hampers the tumor features of eRMS cells. In this scenario, epigenetic dysregulations confirm their crucial role in the pathogenesis of this soft tissue sarcoma. Electronic supplementary material The online version of this article (doi:10.1186/s13148-015-0107-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Serena Vella
- Department of Oncohematology, Laboratory of Angiogenesis, Ospedale Pediatrico Bambino Gesù, IRCCS, Piazza S. Onofrio 4, 00165 Rome, Italy
| | - Silvia Pomella
- Laboratorio di Patologia Vascolare, Istituto Dermopatico dell'Immacolata, IRCCS, Rome, Italy
| | - Pier Paolo Leoncini
- Department of Oncohematology, Laboratory of Angiogenesis, Ospedale Pediatrico Bambino Gesù, IRCCS, Piazza S. Onofrio 4, 00165 Rome, Italy
| | - Marta Colletti
- Department of Oncohematology, Laboratory of Angiogenesis, Ospedale Pediatrico Bambino Gesù, IRCCS, Piazza S. Onofrio 4, 00165 Rome, Italy
| | - Beatrice Conti
- Department of Oncohematology, Laboratory of Angiogenesis, Ospedale Pediatrico Bambino Gesù, IRCCS, Piazza S. Onofrio 4, 00165 Rome, Italy
| | - Victor E Marquez
- Chemical Biology Laboratory, Frederick National Laboratory for Cancer Research, CCR, National Cancer Institute, NIH, Frederick, MD USA
| | - Antonio Strillacci
- Department of Biological, Geological and Environmental Sciences, Biology Unit, University of Bologna, Bologna, Italy
| | - Josep Roma
- Laboratory of Translational Research in Paediatric Cancer, Vall d'Hebron Research Institute and Vall d'Hebron Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Soledad Gallego
- Laboratory of Translational Research in Paediatric Cancer, Vall d'Hebron Research Institute and Vall d'Hebron Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Giuseppe M Milano
- Department of Oncohematology, Clinical Unit, Ospedale Pediatrico Bambino Gesù, IRCCS, Piazza S. Onofrio 4, 00165 Rome, Italy
| | - Maurizio C Capogrossi
- Laboratorio di Patologia Vascolare, Istituto Dermopatico dell'Immacolata, IRCCS, Rome, Italy
| | - Alice Bertaina
- Department of Oncohematology, Clinical Unit, Ospedale Pediatrico Bambino Gesù, IRCCS, Piazza S. Onofrio 4, 00165 Rome, Italy
| | - Roberta Ciarapica
- Laboratorio di Patologia Vascolare, Istituto Dermopatico dell'Immacolata, IRCCS, Rome, Italy
| | - Rossella Rota
- Department of Oncohematology, Laboratory of Angiogenesis, Ospedale Pediatrico Bambino Gesù, IRCCS, Piazza S. Onofrio 4, 00165 Rome, Italy
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Antognelli C, Gambelunghe A, Muzi G, Talesa VN. Peroxynitrite-mediated glyoxalase I epigenetic inhibition drives apoptosis in airway epithelial cells exposed to crystalline silica via a novel mechanism involving argpyrimidine-modified Hsp70, JNK, and NF-κB. Free Radic Biol Med 2015; 84:128-141. [PMID: 25841781 DOI: 10.1016/j.freeradbiomed.2015.03.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Revised: 03/18/2015] [Accepted: 03/22/2015] [Indexed: 12/11/2022]
Abstract
Glyoxalase I (Glo1) is a cellular defense enzyme involved in the detoxification of methylglyoxal (MG), a cytotoxic by-product of glycolysis, and MG-derived advanced glycation end products (AGEs). Argpyrimidine (AP), one of the major AGEs coming from MG modification of protein arginines, is a proapoptotic agent. Crystalline silica is a well-known occupational health hazard, responsible for a relevant number of pulmonary diseases. Exposure of cells to crystalline silica results in a number of complex biological responses, including apoptosis. The present study was aimed at investigating whether, and through which mechanism, Glo1 was involved in Min-U-Sil 5 crystalline silica-induced apoptosis. Apoptosis, by TdT-mediated dUTP nick-end labeling assay, and transcript and protein levels or enzymatic activity, by quantitative real-time PCR, Western blot, and spectrophotometric methods, respectively, were evaluated in human bronchial BEAS-2B cells exposed or not (control) to crystalline silica and also in experiments with appropriate inhibitors. Reactive oxygen species were evaluated by coumarin-7-boronic acid or Amplex red hydrogen peroxide/peroxidase methods for peroxynitrite (ONOO(-)) or hydrogen peroxide (H2O2) measurements, respectively. Our results showed that Min-U-Sil 5 crystalline silica induced a dramatic ONOO(-)-mediated inhibition of Glo1, leading to AP-modified Hsp70 protein accumulation that, in a mechanism involving JNK and NF-κB, triggered an apoptotic mitochondrial pathway. Inhibition of Glo1 occurred at both functional and transcriptional levels, the latter occurring via ERK1/2 MAPK and miRNA 101 involvement. Taken together, our data demonstrate that Glo1 is involved in the Min-U-Sil 5 crystalline silica-induced BEAS-2B cell mitochondrial apoptotic pathway via a novel mechanism involving Hsp70, JNK, and NF-κB. Because maintenance of an intact respiratory epithelium is a critically important determinant of normal respiratory function, the knowledge of the mechanisms underlying its disruption may provide insight into the genesis, and possibly the prevention, of a number of pathological conditions commonly occurring in silica dust occupational exposure.
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Affiliation(s)
- Cinzia Antognelli
- Department of Experimental Medicine University of Perugia, 06129 Perugia, Italy.
| | - Angela Gambelunghe
- Department of Medicine, School of Medicine, University of Perugia, 06129 Perugia, Italy
| | - Giacomo Muzi
- Department of Medicine, School of Medicine, University of Perugia, 06129 Perugia, Italy
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Lin C, Huang F, Li QZ, Zhang YJ. miR-101 suppresses tumor proliferation and migration, and induces apoptosis by targeting EZH2 in esophageal cancer cells. Int J Clin Exp Pathol 2014; 7:6543-6550. [PMID: 25400732 PMCID: PMC4230090] [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] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 08/21/2014] [Indexed: 06/04/2023]
Abstract
AIM To investigate the role of miR-101 in the regulation of tumor proliferation, invasion, apoptosis and to its target gene in human ESCC. METHODS The expression level of miR-101 in Eca109 cell line was determined by real-time polymerase chain reaction (PCR). After transfected with miR-101 mimics and inhibitor, proliferation, migration and apoptosis in ESCC cell line (Eca109) were detected by MTT, cell wound healing assay and flow cytometry, respectively. The expression of EZH2 in Eca109 cell was examined by immunohistochemical staining. RESULTS We found that miR-101 was significantly down-regulated in ESCC cell than in matched normal esophageal epithelium cell. The expression level of miR-101 was inversely correlated to EZH2 protein expression in ESCC cell. In Eca109 cells, over-expression of miR-101 significantly inhibited the migration and invasion of ESCC cells, and promotes cell apoptosis. CONCLUSIONS These findings suggest that decreased expression of miR-101 might promote metastasis of human ESCC by inducing accumulation of EZH2 protein.
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Affiliation(s)
- Chen Lin
- Department of Pathology, Basic Medical Sciences, Xinjiang Medical UniversityUrumqi, China
| | - Fei Huang
- Department of Pathology, The Affiliated Tumor Hospital Of Xinjiang Medical UniversityUrumqi, China
| | - Qiao-Zhi Li
- Department of Pathology, Basic Medical Sciences, Xinjiang Medical UniversityUrumqi, China
| | - Ya-Jing Zhang
- Department of Pathology, The Forth Affiliated HospitalUrumqi, China
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Kim D, Song J, Han J, Kim Y, Chun CH, Jin EJ. Two non-coding RNAs, MicroRNA-101 and HOTTIP contribute cartilage integrity by epigenetic and homeotic regulation of integrin-α1. Cell Signal 2013; 25:2878-87. [PMID: 24018042 DOI: 10.1016/j.cellsig.2013.08.034] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [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: 07/19/2013] [Accepted: 08/31/2013] [Indexed: 12/18/2022]
Abstract
Non-coding RNAs have been less studied in cartilage development and destruction regulated by sophisticated molecular events despite their considerable theranostic potential. In this study, we identified significant down-regulation of mR-101 and up-regulation of lncRNA, HOTTIP in the processes of endochondral ossification and osteoarthritic progression. In wing mesenchymal cells, up-expression of miR-101 by TGF-β3 treatment is targeting DNMT-3B and thereby altered the methylation of integrin-α1 addressed as a positive regulator of endochondral ossification in this study. In like manner, down-regulation of miR-101 also coordinately up-regulated DNMT-3B, down-regulated integrin-α1, and resulted in cartilage destruction. In an OA animal model, introduction of lentiviruses that encoded miR-101 or integrin-α1 successfully reduced cartilage destruction. In like manner, long non-coding RNA (lncRNA), HOTTIP, a known regulator for HoxA genes, was highly up-regulated and concurrent down-regulation of HoxA13 displayed the suppression of integrin-α1 in OA chondrocytes. In conclusion, two non-coding RNAs, miR-101 and HOTTIP regulate cartilage development and destruction by modulating integrin-α1 either epigenetically by DNMT-3B or transcriptionally by HoxA13 and data further suggest that these non-coding RNAs could be a potent predictive biomarker for OA as well as a therapeutic target for preventing cartilage-related diseases.
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Affiliation(s)
- Dongkyun Kim
- Department of Biological Sciences, College of Natural Sciences, Wonkwang University, Iksan, Chunbuk 570-749, Republic of Korea
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Shen Q, Bae HJ, Eun JW, Kim HS, Park SJ, Shin WC, Lee EK, Park S, Park WS, Lee JY, Nam SW. MiR-101 functions as a tumor suppressor by directly targeting nemo-like kinase in liver cancer. Cancer Lett 2013; 344:204-11. [PMID: 24189458 DOI: 10.1016/j.canlet.2013.10.030] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [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: 09/05/2013] [Revised: 10/25/2013] [Accepted: 10/27/2013] [Indexed: 12/17/2022]
Abstract
Nemo-like kinase (NLK), an evolutionarily conserved MAP kinase-related kinase, has been reported to be involved in the development of hepatocellular carcinoma (HCC), but the underlying mechanisms leading to oncogenic NLK are poorly understood. A comprehensive microRNA (miRNA) profiling analysis on human HCC tissues identified four downregulated miRNAs that may target NLK. Ectopic expression of miRNA mimics suggested that miR-101 could suppress NLK in HCC cells. Notably, ectopic miR-101 expression repressed cancer cell growth and proliferation and imitated NLK knockdown effect on HCC cells. In conclusion, we suggest that miR-101 functions as a tumor suppressor by regulating abnormal NLK activity in liver.
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Affiliation(s)
- Qingyu Shen
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyun Jin Bae
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jung Woo Eun
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyung Seok Kim
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Se Jin Park
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Woo Chan Shin
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eun Kyung Lee
- Cancer Evolution Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 137-701, Republic of Korea
| | - Soha Park
- Techno-Art Division, Underwood International College, Yonsei University, Seoul, Republic of Korea
| | - Won Sang Park
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jung Young Lee
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Suk Woo Nam
- Lab of Oncogenomics, Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Functional RNomics Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Cancer Evolution Research Center, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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