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Meng J, Qian W, Yang Z, Gong L, Xu D, Huang H, Jiang X, Pu Z, Yin Y, Zou J. p53/E2F7 axis promotes temozolomide chemoresistance in glioblastoma multiforme. BMC Cancer 2024; 24:317. [PMID: 38454344 PMCID: PMC10921682 DOI: 10.1186/s12885-024-12017-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 02/18/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Glioblastoma multiforme (GBM) is the most aggressive form of brain cancer, and chemoresistance poses a significant challenge to the survival and prognosis of GBM. Although numerous regulatory mechanisms that contribute to chemoresistance have been identified, many questions remain unanswered. This study aims to identify the mechanism of temozolomide (TMZ) resistance in GBM. METHODS Bioinformatics and antibody-based protein detection were used to examine the expression of E2F7 in gliomas and its correlation with prognosis. Additionally, IC50, cell viability, colony formation, apoptosis, doxorubicin (Dox) uptake, and intracranial transplantation were used to confirm the role of E2F7 in TMZ resistance, using our established TMZ-resistance (TMZ-R) model. Western blot and ChIP experiments provided confirmation of p53-driven regulation of E2F7. RESULTS Elevated levels of E2F7 were detected in GBM tissue and were correlated with a poor prognosis for patients. E2F7 was found to be upregulated in TMZ-R tumors, and its high levels were linked to increased chemotherapy resistance by limiting drug uptake and decreasing DNA damage. The expression of E2F7 was also found to be regulated by the activation of p53. CONCLUSIONS The high expression of E2F7, regulated by activated p53, confers chemoresistance to GBM cells by inhibiting drug uptake and DNA damage. These findings highlight the significant connection between sustained p53 activation and GBM chemoresistance, offering the potential for new strategies to overcome this resistance.
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Affiliation(s)
- Jiao Meng
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - Wei Qian
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
- Department of Clinical Laborator, Kunshan Hospital of Traditional Chinese Medicine, Kunshan, 215300, Suzhou, Jiangsu, China
| | - Zhenkun Yang
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - Lingli Gong
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - Daxing Xu
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - Hongbo Huang
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, 214063, Wuxi, China
| | - Xinyi Jiang
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China
| | - Zhening Pu
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China.
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China.
| | - Ying Yin
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China.
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China.
| | - Jian Zou
- Department of Laboratory Medicine, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China.
- Center of Clinical Research, Wuxi People's Hospital, Wuxi Medical Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Nanjing Medical University, 214023, Wuxi, Jiangsu, China.
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2
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Wang J, He X, Yao Q, Wang C, Lu X, Wang R, Miao D. LncRNA PTTG3P promotes tumorigenesis and metastasis of NSCLC by binding with ILF3 to maintain mRNA stability and form a positive feedback loop with E2F1. Int J Biol Sci 2023; 19:4291-4310. [PMID: 37705754 PMCID: PMC10496499 DOI: 10.7150/ijbs.81738] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 08/06/2023] [Indexed: 09/15/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is a highly lethal disease worldwide. We found the pseudogene-derived lncRNA PTTG3P is upregulated in NSCLC and associated with larger tumor size, advanced staging, and poor prognosis. This study investigated the oncogenic roles and mechanisms of PTTG3P in NSCLC. We demonstrate that PTTG3P promoted NSCLC cell proliferation, migration, tumorigenesis, and metastasis while inhibiting apoptosis in vitro and in vivo. Mechanistically, PTTG3P formed an RNA-protein complex with ILF3 to maintain MAP2K6 and E2F1 mRNA stability, two oncogenic factors involved in NSCLC progression. RNA-seq revealed MAP2K6 and E2F1 were downregulated upon PTTG3P knockdown. RIP and RNA stability assays showed PTTG3P/ILF3 interaction stabilized MAP2K6 and E2F1 transcripts. Interestingly, E2F1 transcriptionally upregulated PTTG3P by binding its promoter, forming a positive feedback loop. Knockdown of E2F1 or PTTG3P attenuated their mutual regulatory effects on cell growth and migration. Thus, a PTTG3P/ILF3/E2F1 axis enhances oncogene expression to promote NSCLC pathogenesis. Our study reveals PTTG3P exerts oncogenic functions in NSCLC via mRNA stabilization and a feedback loop, highlighting its potential as a prognostic biomarker and therapeutic target.
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Affiliation(s)
- Jing Wang
- Department of Human Anatomy, Histology and Embryology, The Research Center for Bone and Stem Cells, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Xuezhi He
- Department of Human Anatomy, Histology and Embryology, The Research Center for Bone and Stem Cells, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Qing Yao
- Department of Endocrinology, Changzhou Second People's Hospital Affiliated Nanjing Medical University, No.29 Xinglong Road, 213003 Changzhou, Jiangsu, People's Republic of China
| | - Chan Wang
- Department of Human Anatomy, Histology and Embryology, The Research Center for Bone and Stem Cells, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Xiyi Lu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Rong Wang
- Department of Human Anatomy, Histology and Embryology, The Research Center for Bone and Stem Cells, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Dengshun Miao
- Department of Human Anatomy, Histology and Embryology, The Research Center for Bone and Stem Cells, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
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3
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Aydın E, Saus E, Chorostecki U, Gabaldón T. A hybrid approach to assess the structural impact of long noncoding RNA mutations uncovers key
NEAT1
interactions in colorectal cancer. IUBMB Life 2023. [PMID: 36971476 DOI: 10.1002/iub.2710] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 01/25/2023] [Indexed: 03/29/2023]
Abstract
Long noncoding RNAs (lncRNAs) are emerging players in cancer and they entail potential as prognostic biomarkers or therapeutic targets. Earlier studies have identified somatic mutations in lncRNAs that are associated with tumor relapse after therapy, but the underlying mechanisms behind these associations remain unknown. Given the relevance of secondary structure for the function of some lncRNAs, some of these mutations may have a functional impact through structural disturbance. Here, we examined the potential structural and functional impact of a novel A > G point mutation in NEAT1 that has been recurrently observed in tumors of colorectal cancer patients experiencing relapse after treatment. Here, we used the nextPARS structural probing approach to provide first empirical evidence that this mutation alters NEAT1 structure. We further evaluated the potential effects of this structural alteration using computational tools and found that this mutation likely alters the binding propensities of several NEAT1-interacting miRNAs. Differential expression analysis on these miRNA networks shows upregulation of Vimentin, consistent with previous findings. We propose a hybrid pipeline that can be used to explore the potential functional effects of lncRNA somatic mutations.
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Affiliation(s)
- Efe Aydın
- Department of Laboratory Medicine, Division of Clinical Genetics, Lund University, Lund, Sweden
| | - Ester Saus
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Barcelona Supercomputing Centre (BSC-CNS). Plaça Eusebi Güell, Barcelona, Spain
| | - Uciel Chorostecki
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Barcelona Supercomputing Centre (BSC-CNS). Plaça Eusebi Güell, Barcelona, Spain
| | - Toni Gabaldón
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Barcelona Supercomputing Centre (BSC-CNS). Plaça Eusebi Güell, Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
- Centro de Investigación Biomédica En Red de Enfermedades Infecciosas (CIBERINFEC), Barcelona, Spain
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4
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Xiao X, Cheng W, Zhang G, Wang C, Sun B, Zha C, Kong F, Jia Y. Long Noncoding RNA: Shining Stars in the Immune Microenvironment of Gastric Cancer. Front Oncol 2022; 12:862337. [PMID: 35402261 PMCID: PMC8989925 DOI: 10.3389/fonc.2022.862337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/03/2022] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer (GC) is a kind of malignant tumor disease that poses a serious threat to human health. The GC immune microenvironment (TIME) is a very complex tumor microenvironment, mainly composed of infiltrating immune cells, extracellular matrix, tumor-associated fibroblasts, cytokines and chemokines, all of which play a key role in inhibiting or promoting tumor development and affecting tumor prognosis. Long non-coding RNA (lncRNA) is a non-coding RNA with a transcript length is more than 200 nucleotides. LncRNAs are expressed in various infiltrating immune cells in TIME and are involved in innate and adaptive immune regulation, which is closely related to immune escape, migration and invasion of tumor cells. LncRNA-targeted therapeutic effect prediction for GC immunotherapy provides a new approach for clinical research on the disease.
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Affiliation(s)
- Xian Xiao
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China.,Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wen Cheng
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China.,Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Guixing Zhang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China.,Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Chaoran Wang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China.,Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Binxu Sun
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Chunyuan Zha
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China.,Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fanming Kong
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Yingjie Jia
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.,National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
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5
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Liu Y, Geng X. Long non-coding RNA (lncRNA) CYTOR promotes hepatocellular carcinoma proliferation by targeting the microRNA-125a-5p/LASP1 axis. Bioengineered 2022; 13:3666-3679. [PMID: 35081873 PMCID: PMC8974008 DOI: 10.1080/21655979.2021.2024328] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
This study investigated the function of long non-coding RNA (lncRNA) cytoskeleton regulator RNA (CYTOR) in hepatocellular carcinoma (HCC). In HCC, the expression of CYTOR and microRNA (miR)-125a-5p were measured by quantitative real-time PCR (qRT-PCR). The expression of actin skeletal protein 1 (LASP1) was evaluated by Western blot analysis. Flow cytometry assays, transwell assays, colony formation assay, and cell counting kit-8 (CCK-8) assay were used to evaluate the roles of miR-125a-5p and CYTOR in HCC cells. The target genes of CYTOR and miR-125a-5p were identified by bioinformatics analysis and Luciferase assay. CYTOR was upregulated in HCC cell lines, and knockdown of CYTOR inhibited HCC cell growth. MiR-125a-5p was downregulated in HCC cells and a target of CYTOR in regulating HCC progression. Furthermore, LASP1 was a downstream target of miR-125a-5p. Finally, CYTOR was found to be involved in HCC progression in vivo. CYTOR promotes HCC development by regulating the miR-125a-5p/LASP1 axis.
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Affiliation(s)
- Yadong Liu
- Department of Orthopedics, Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian City, Liaoning Province, PR. China
| | - Xiaoling Geng
- Department of Gastroenterology& Hepatology, First Affiliated Hospital of Dalian Medical University, Dalian City, Liaoning Province, PR. China
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7
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Guo Q, Xie M, Guo M, Yan F, Li L, Liu R. ZEB2, interacting with MDM2, contributes to the dysfuntion of brain microvascular endothelial cells and brain injury after intracerebral hemorrhage. Cell Cycle 2021; 20:1692-1707. [PMID: 34334113 DOI: 10.1080/15384101.2021.1959702] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
ZEB2 has been shown to be upregulated in the brain tissues of rats with intracerebral hemorrhage (ICH), but its role in ICH-caused brain injury remains unclear. Here, an ICH rat model was established via intracerebral injection of autologous blood, and the lentivirus-mediated ZEB2 short hairpin RNA (sh-ZEB2) or negative control (scramble) were administered 0.5 hours after ICH. Silencing ZEB2 alleviated ICH-induced neurologic deficits and the increase of BBB permeability, brain water content and ZEB2 expression. Next, OGD (oxygen glucose deprivation) plus hemin was used to treat primary brain microvascular endothelial cells (BMECs) to simulate the ICH condition in vitro. OGD plus hemin upregulated ZEB2 expression and apoptosis, but reduced cell viability, migration, TEER (transendothelial electric resistance) and the expression of vascular-endothelial (VE-) cadherin, occludin and claudin-5, which was reversed by inhibiting ZEB2. Mechanism researches showed that ZEB2 interacted with MDM2 to up-regulate MDM2 protein expression, and then increased E2F1 protein level by suppressing its ubiquitination, which in turn promoted the transcription of ZEB2 to induce its protein expression, so as to enhance the interaction between ZEB2 and MDM2, thereby contributing to OGD plus hemin-induced endothelial dysfunction. Additionally, the joint interference of ZEB2 and MDM2 in vivo had better mitigative effects on ICH-induced brain injury compared with silencing ZEB2 alone. In summary, ZEB2 interacted with MDM2 to promote BMEC dysfunction and brain damage after ICH.
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Affiliation(s)
- Qingbao Guo
- Department of Emergency, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Manli Xie
- Department of Occupational Diseases, Xi'an Central Hospital, Xi'an, Shaanxi, China
| | - Miao Guo
- Department of Pathology, Xing Yuan Hospital of Yulin, Yulin, Shaanxi, China
| | - Feiping Yan
- Department of Neurosurgery, The First Hospital of Yulin, Yulin, Shaanxi, China
| | - Lihong Li
- Department of Emergency, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Rui Liu
- Department of Neurosurgery, Xing Yuan Hospital of Yulin, Yulin, Shaanxi, China
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8
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Cheng R, Zhang G, Bai Y, Zhang F, Zhang G. LncRNA SENCR promotes cell proliferation and progression in non-small-cell lung cancer cells via sponging miR-1-3p. Cell Cycle 2021; 20:1402-1414. [PMID: 34224326 PMCID: PMC8344740 DOI: 10.1080/15384101.2021.1924958] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 04/18/2021] [Accepted: 04/28/2021] [Indexed: 12/27/2022] Open
Abstract
ABBREVIATION NSCLC: Non-small cell lung cancer.
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Affiliation(s)
- Ruirui Cheng
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, ZhengzhouChina
| | - Guowei Zhang
- Department of Internal Medicine, The Affiliated Cancer Hospital of Zhengzhou University, ZhengzhouChina
| | - Yong Bai
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, ZhengzhouChina
| | - Furui Zhang
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, ZhengzhouChina
| | - Guojun Zhang
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, ZhengzhouChina
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9
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Zhang X, Jiang Y, Xie Y, Leng X, He M, Song F. Inhibition of gastric cancer cell apoptosis by long noncoding RNA TRPM2-AS via mitogen-activated protein kinase and activators of transduction-3. J Gastroenterol Hepatol 2021; 36:186-195. [PMID: 32424838 DOI: 10.1111/jgh.15108] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/23/2020] [Accepted: 05/05/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Long noncoding RNA TRPM2-AS has emerged as a novel regulator in cancer initiation and progression of various cancers. However, the function and underlying mechanism of TRPM2-AS in the progression of gastric cancer (GC) remain poorly understood. METHODS GEO and TCGA databases were used for isolation of differential lncRNA expression. TRPM2-AS expression levels in GC tissues and cells were measured by quantitative polymerase chain reaction method. TRPM2-AS subcellular location was detected by fluorescence in situ hybridization analysis. The functional roles of TRPM2-AS in cells were analyzed by loss and gain function assays. RESULTS By using bioinformatics and quantitative polymerase chain reaction methods, TRPM2-AS expression levels were proved to be upregulated in GSE70880 dataset, TCGA database, and 26 GC tissues, which was partly induced by SP1. The results of clinical assays showed that TRPM2-AS could be an indicator for early-stage GC diagnosis. Fluorescence in situ hybridization analysis showed that TRPM2-AS was located in both nucleus and cytoplasm. Functional experiments displayed that knockdown of TRPM2-AS inhibited proliferation, migration, and invasion in GC cells. Furthermore, depression of TRPM2-AS suppressed cell growth though promotion of cell apoptosis. The expression levels of cleaved PARP, caspase 9, caspase 3, and Bax were significantly increased in BGC823 with TRPM2-AS knockdown. In addition, knockdown of TRPM2-AS reduced and phosphorylate signal transducer and activator of transcription 3 and increased and phosphorylate p38 mitogen-activated protein kinase. CONCLUSIONS This study demonstrated that SP1-regulated TRPM2-AS is involved in GC cell apoptosis probably via p38 mitogen-activated protein kinase and signal transducer and activator of transcription 3 pathways, indicating that TRPM2-AS might be a potential therapeutic target in GC.
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Affiliation(s)
- Xianqin Zhang
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China.,School of Basic Medical Sciences, Chengdu Medical College, Chengdu, China
| | - Yuyou Jiang
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Yan Xie
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Xue Leng
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Min He
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Fangzhou Song
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
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10
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Zhang G, Song W. Long non-coding RNA LSINCT5 inactivates Wnt/β-catenin pathway to regulate MCF-7 cell proliferation and motility through targeting the miR-30a. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1635. [PMID: 33490147 PMCID: PMC7812233 DOI: 10.21037/atm-20-7253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background Breast cancer (BC) is the most common malignant tumor among women. Earlier studies showed that long stress-induced non-coding transcript 5 (LSINCT5) was implicated in BC. However, the potential mechanisms of LSINCT5 in BC is still elusive. Methods Relative expression of LSINCT5 in BC tissues and cells were quantified by quantitative real-time reverse transcription PCR (qRT-PCR). shRNA was employed to specifically knockdown endogenous LSINCT5 in BC cells. Cell growth and invasion activity of BC cells was assessed by colony formation and transwell migration assay, respectively. The association between LSINCT5 and miR-30a was conducted by luciferase reporter assay. Subcutaneous injection of sh-LSINCT5 transfected MCF-7 cells into the ventral regions of mice to form tumors. Mice were divided into three groups (n=10): control group, sh-NC group, sh-LSINCT5 group (sh-NC or sh-LSINCT5 transfected MCF-7 cells injected into mice). Tumor weight was checked after 30 days post-injection. Results LSINCT5 was significantly up-regulated in BC tissues and cells. LSINCT5 knockdown suppressed proliferation, invasion, and epithelial-mesenchymal transition (EMT) in vitro and in vivo. LSINCT5 acted as a sponge molecule and targeted miR-30a in BC cells. Further mechanistic study exhibited that overexpression of LSINCT5 promoted the expression of Wnt/β-catenin-related proteins (β-catenin, TCF4, and c-Myc). In vivo, xenograft nude mice experiment indicated sh-LSINCT5 inhibited tumor growth and motility by targeting miR-30a through modulating Wnt/β-catenin pathway. Conclusions The present results uncovered that LSINCT5 knockdown suppressed BC growth and metastasis via the miR-30a/Wnt/β-catenin axis, and it served as a potential therapeutic target for early diagnosis and treatment of BC patients..
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Affiliation(s)
- Guizhi Zhang
- Department of Radiology, The Eighth Affiliated Hospital Sun Yat-sen University, Shenzhen, China
| | - Wenbo Song
- Department of Oncology, Jiangdu People's Hospital Affiliated to Medical College of Yangzhou University, Yangzhou, China
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11
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Liao SA, Guan J, Mo H, He JL, Zhan XL. lncRNA LSINCT5 Regulates miR-20a-5p/XIAP to Inhibit the Growth and Metastasis of Osteosarcoma Cells. Onco Targets Ther 2020; 13:8209-8221. [PMID: 32884299 PMCID: PMC7443453 DOI: 10.2147/ott.s251843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022] Open
Abstract
Background More and more evidence has shown that non-coding RNA (ncRNA), including long ncRNA (lncRNA) and micro RNA (miRNA), plays a crucial regulatory role in osteosarcoma (OS). Previously, we revealed a Rho-related coiled coil incorporating protein kinase 1(XIAP). A transfer-related gene is negatively regulated by microRNA-20a-5p (miR-20a-5p) and plays the role of oncogene in OS. It is not clear if any lncRNA is involved in the axial upstream of miR-20a-5p/XIAP. Methods Expression of LSINCT5 and miR-20a-5p/XIAP in OS tissues was determined through qRT-PCR (qP). The proliferation and migration/invasion activity of OS cells were tested through CCK-8/and transwell assay, respectively. The changes on expression of XIAP were examined through qRT-PCR and Western blot (WB). Targeted binding between LSINCT5, miR-20a-5p, and XIAP has been verified using dual luciferase reporter gene analysis, RNA Immunoprecipitation (RIP), and RNA pull-down experiments. The effect of LSINCT5 on tumor growth was determined by tumor allograft test. Results In this study, elevated LSINCT5 was found in OS tissue samples and OS cell strains, and the increased LSINCT5 was strongly related to the adverse prognosis of clinical patients. Functional assays showed that inhibition of LSINCT5 could up-regulate miR-20a-5p-mediated OS cells proliferation and metastasis. WB analysis and qP analysis showed that LSINCT5 regulated XIAP by mediating miR-20a-5p. Further cell behavior experiments showed that LSINCT5 acted as a miR-20a-5p sponge to inhibit proliferation and metastasis caused by XIAP. Finally, the results of animal models in vivo showed that LSINCT5 could regulate the tumor growth of OS. Conclusion LncRNA LSINCT5 acts as an oncogene and promotes XIAP mediated growth and metastasis as competitive endogenous RNA (ceRNA) in OS.
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Affiliation(s)
- Shi-An Liao
- Department of Spine and Osteopathy Ward, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, People's Republic of China
| | - Jian Guan
- Department of Bone and Soft Tissue Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi Province, People's Republic of China
| | - Hao Mo
- Department of Bone and Soft Tissue Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi Province, People's Republic of China
| | - Ju-Liang He
- Department of Bone and Soft Tissue Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi Province, People's Republic of China
| | - Xin-Li Zhan
- Department of Spine and Osteopathy Ward, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, People's Republic of China
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12
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Liu X, Hu C. Novel Potential Therapeutic Target for E2F1 and Prognostic Factors of E2F1/2/3/5/7/8 in Human Gastric Cancer. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2020; 18:824-838. [PMID: 32953933 PMCID: PMC7479313 DOI: 10.1016/j.omtm.2020.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 07/28/2020] [Indexed: 12/27/2022]
Abstract
E2F transcription factors (E2Fs) were found to be related with cell activities and disease progression among a variety of different tumors, including regulating cell division and cell proliferation. In the analysis, it aimed to focus on transcriptional and survival information of E2Fs in gastric cancer (GC) from Gene Expression Profiling Interactive Analysis (GEPIA), Kaplan-Meier plotter, cBioPortal, Database for Annotation, Visualization and Integrated Discovery (DAVID), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, and Oncomine databases. It was found that the expression of E2F1/2/3/5/7/8 in GC tissues was obviously higher than the normal. Of interest, none of the E2Fs was related with pathological stages. Nevertheless, high expression of E2F2/3/5/7/8 was related with better survival data, except E2F6 regarding shorter first-progression (FP) survival. High expression levels of E2F2/5/7/8 have significant correlations with overall survival (OS) in patients with intestinal and diffuse GC, and this prognostic value is not affected by gender. Oppositely, the lower level of E2F1/4 illustrated superior survival data. Moreover, increased expression of E2F1 in GC tissues might play an important role in the development of GC. Collectively, E2F1 could be a potential therapeutic target for patients with GC. E2F1/2/3/5/7/8 might be original prognostic predictors of GC.
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Affiliation(s)
- Xuhong Liu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Chunhong Hu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
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13
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He Y, Huang S, Cheng T, Wang Y, Zhou SJ, Zhang YM, Yu P. High glucose may promote the proliferation and metastasis of hepatocellular carcinoma via E2F1/RRBP1 pathway. Life Sci 2020; 252:117656. [PMID: 32289433 DOI: 10.1016/j.lfs.2020.117656] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/30/2020] [Accepted: 04/07/2020] [Indexed: 01/05/2023]
Abstract
AIMS Diabetes is considered as one of the important risks in the progression of Hepatocellular carcinoma(HCC). Ribosome binding protein 1 (RRBP1), a rough endoplasmic reticulum protein, plays an essential role in diabetes and various cancer. E2F transcription factor 1 (E2F1), an upstream transcription factor of RRBP1, shows promoting tumor progression effect in multifarious cancers. In this research, we tried to identify whether regulating E2F1/RRBP1 pathway could inhibit the proliferation and metastasis of HepG2 cells induced by high glucose. MAIN METHODS Proteomic, bioinformatics, molecular biology including RT-qPCR and Western blot, cell biology containing Cell Counting Kit-8 (CCK-8), wound healing assay and transwell assay, and biochemistry analyses incorporating Luciferase assay and CHIP assay were used in this study. KEY FINDINGS High glucose promoted the proliferation and metastasis of HepG2 cells through up-regulating the expression of RRBP1. Bioinformatics analysis predicted that E2F1 might be the transcription factor of RRBP1. Knocking-down of E2F1 down-regulated mRNA and protein expression levels of RRBP1 in HepG2 cells significantly and suppressed the proliferation, migration and invasion of cells remarkably, Reverse effect was observed in cells that E2F1 was overexpressed. Meanwhile, luciferase and CHIP assay determined that E2F1 could bind to the RRBP1 promoter and promote the transcription of RRBP1. Finally, rescue assay verified the important role of RRBP1/E2F1 axis in the process of HepG2 cells proliferation and metastasis. SIGNIFICANCE All of the above provided possibility to improve the efficiency of HCC complicated with diabetes treatment by regulating the E2F1/RRBP1 pathway.
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Affiliation(s)
- Yuan He
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Shuai Huang
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Ting Cheng
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Yao Wang
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Sai-Jun Zhou
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Ya-Min Zhang
- Department of Hepatobiliary Surgery, Tianjin First Center Hospital, Nankai District, Tianjin 300192, China.
| | - Pei Yu
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China.
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14
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Lin Y, Liang R, Qiu Y, Lv Y, Zhang J, Qin G, Yuan C, Liu Z, Li Y, Zou D, Mao Y. Expression and gene regulation network of RBM8A in hepatocellular carcinoma based on data mining. Aging (Albany NY) 2020; 11:423-447. [PMID: 30670676 PMCID: PMC6366983 DOI: 10.18632/aging.101749] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 12/25/2018] [Indexed: 12/11/2022]
Abstract
RNA binding motif protein 8A (RBM8A) is an RNA binding protein in a core component of the exon junction complex. Abnormal RBM8A expression is associated with carcinogenesis. We used sequencing data from the Cancer Genome Atlas database and Gene Expression Omnibus, analyzed RBM8A expression and gene regulation networks in hepatocellular carcinoma (HCC). Expression was analyzed using OncomineTM and Gene Expression Profiling Interactive Analysis tools, while RBM8A alterations and related functional networks were identified using cBioPortal. LinkedOmics was used to identify differential gene expression with RBM8A and to analyze Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathways. Gene enrichment analysis examined target networks of kinases, miRNAs and transcription factors. We found that RBM8A is overexpressed and the RBM8A gene often amplified in HCC. Expression of this gene is linked to functional networks involving the ribosome and RNA metabolic signaling pathways. Functional network analysis suggested that RBM8A regulates the spliceosome, ribosome, DNA replication and cell cycle signaling via pathways involving several cancer-related kinases, miRNAs and E2F Transcription Factor 1. Our results demonstrate that data mining efficiently reveals information about RBM8A expression and potential regulatory networks in HCC, laying a foundation for further study of the role of RBM8A in carcinogenesis.
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Affiliation(s)
- Yan Lin
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Rong Liang
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yufen Qiu
- Maternal and Child Health Hospital and Obstetrics and Gynecology Hospital of Guangxi Zhuang Autonomous Region, Guangxi 530021, People's Republic of China
| | - Yufeng Lv
- Department of Medical Oncology, Affiliated Langdong Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Jinyan Zhang
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Gang Qin
- The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Chunling Yuan
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Zhihui Liu
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yongqiang Li
- Department of Medical Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Donghua Zou
- The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yingwei Mao
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
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Zheng H, Wang JJ, Yang XR, Yu YL. Upregulation of miR-34c after silencing E2F transcription factor 1 inhibits paclitaxel combined with cisplatin resistance in gastric cancer cells. World J Gastroenterol 2020; 26:499-513. [PMID: 32089626 PMCID: PMC7015722 DOI: 10.3748/wjg.v26.i5.499] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/13/2019] [Accepted: 01/01/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND MicroRNA 34c (miR-34c) has been reported to be associated with malignant types of cancer, however, it remains unknown whether miR-34c is involved in chemoresistance in gastric cancer (GC).
AIM To investigate the effect of miR-34c and its upstream transcription factor E2F1 on paclitaxel combined with cisplatin resistance in GC cells.
METHODS Paired GC tissues and adjacent normal tissues were randomly sampled from 74 GC patients. miR-34c and E2F1 were detected by real-time quantitative PCR (qPCR) and Western blot. In addition, the drug resistance of GC cells to paclitaxel and cisplatin was induced by concentration gradient increasing methods, and changes in miR-34c and E2F1 during this process were measured. Furthermore, E2F1 and miR-34c overexpression or underexpression vectors were constructed and transfected into drug-resistant GC cells. MTT was employed to test the sensitivity of cells to paclitaxel combined with cisplatin, qPCR was adopted to detect the expression of miR-34c, Western blot was applied to detect the expression levels of E2F1, drug resistance-related proteins and apoptosis-related proteins, and flow cytometry was used for the determination of cell apoptosis and cell cycle status.
RESULTS E2F1 was overexpressed while miR-34c was underexpressed in GC. After inducing GC cells to be resistant to paclitaxel and cisplatin, E2F1 expression increased while miR-34c expression decreased. Both silencing E2F1 and over-expressing miR-34c could increase the sensitivity of drug-resistant GC cells to paclitaxel combined with cisplatin, promote cell apoptosis and inhibit cell proliferation. Among which, silencing E2F1 could reduce the expression of drug resistance-related proteins and apoptosis-related proteins, while over-expression of miR-34c could upregulate the expression of apoptosis-related proteins without affecting the expression of MDR-1, MRP and other drug resistance-related proteins. Rescue experiments demonstrated that inhibiting miR-34c could significantly weaken the sensitization of drug resistant cells, and Si E2F1 to paclitaxel combined with cisplatin.
CONCLUSION E2F1 inhibits miR-34c to promote the proliferation of GC cells and enhance the resistance to paclitaxel combined with cisplatin, and silencing E2F1 is conducive to improving the efficacy of paclitaxel combined with cisplatin in GC cells.
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Affiliation(s)
- Hong Zheng
- Department of Pathology, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Jin-Jing Wang
- Department of Pathology, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Xiao-Rong Yang
- Department of Pathology, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Yong-Lin Yu
- Department of Pathology, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
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Chen L, Gong X, Huang M. YY1-Activated Long Noncoding RNA SNHG5 Promotes Glioblastoma Cell Proliferation Through p38/MAPK Signaling Pathway. Cancer Biother Radiopharm 2019; 34:589-596. [PMID: 31657621 DOI: 10.1089/cbr.2019.2779] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Lei Chen
- Department of Neurosurgery, Hunan Provincial People's Hospital, (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Xin Gong
- Department of Neurosurgery, Hunan Provincial People's Hospital, (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Mengyi Huang
- Department of Neurosurgery, Hunan Provincial People's Hospital, (The First Affiliated Hospital of Hunan Normal University), Changsha, China
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17
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Shi J, Li J, Yang S, Hu X, Chen J, Feng J, Shi T, He Y, Mei Z, He W, Xie J, Li S, Jie Z, Tu S. LncRNA SNHG3 is activated by E2F1 and promotes proliferation and migration of non-small-cell lung cancer cells through activating TGF-β pathway and IL-6/JAK2/STAT3 pathway. J Cell Physiol 2019; 235:2891-2900. [PMID: 31602642 DOI: 10.1002/jcp.29194] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/03/2019] [Indexed: 12/15/2022]
Abstract
Recently, long noncoding RNAs (lncRNAs) have been widely reported to play pivotal roles in the regulation of human cancers. Although the oncogenic property of lncRNA small nucleolar RNA host gene 3 (SNHG3) has been revealed in a variety of cancers, functions and regulatory mechanism of SNHG3 in non-small-cell lung cancer (NSCLC) remain to be investigated. In this study, we detected the upregulated expression of SNHG3 in NSCLC tissues as well as cells through quantitative reverse-transcription polymerase chain reaction (qRT-PCR) analysis. Using Kaplan-Meier analysis, we determined that a high-level of SNHG3 was associated with a low overall survival rate of patients with NSCLC. Through gain and loss of function experiments, we demonstrated that SNHG3 had a significantly positive effect on NSCLC cell proliferation and migration. Mechanistic investigations revealed that SNHG3 was a predicted direct transcriptional target of E2F1. We observed that the transcriptional activation of SNHG3 could be induced by E2F1. To explore the mechanism, rescue experiments were carried out, which revealed that the cotreatment with SB-431542, JSI-124, or JSI-124 + SB-431542 rescued the effects brought by the overexpression of SNHG3 on NSCLC cell proliferation, migration, and epithelial-mesenchymal transition process. Our results suggested that E2F1 activated SNHG3 and promoted cell proliferation and migration in NSCLC via transforming growth factor-β pathway and interleukin-6/janus-activated kinase 2/signal transducer and activator of transcription 3 pathway, which implied that SNHG3 may be a biomarker for the treatment of patients with NSCLC.
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Affiliation(s)
- Jindong Shi
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Jiannan Li
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Shuang Yang
- General Department, Jiangchuan Community Healthcare Service Center, Shanghai, China
| | - Xiaoying Hu
- General Department, Jiangchuan Community Healthcare Service Center, Shanghai, China
| | - Jiajun Chen
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Jingjing Feng
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Tianyun Shi
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Yanchao He
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Zhoufang Mei
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Wei He
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Juan Xie
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Shanqun Li
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhijun Jie
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Shuiping Tu
- Department of Oncology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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18
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Jiang H, Li Y, Li J, Zhang X, Niu G, Chen S, Yao S. Long noncoding RNA LSINCT5 promotes endometrial carcinoma cell proliferation, cycle, and invasion by promoting the Wnt/β-catenin signaling pathway via HMGA2. Ther Adv Med Oncol 2019; 11:1758835919874649. [PMID: 31632465 PMCID: PMC6769207 DOI: 10.1177/1758835919874649] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 08/13/2019] [Indexed: 12/14/2022] Open
Abstract
Background: A review of the evidence has indicated the critical role of long noncoding RNA (lncRNA) LSINCT5 in a large number of human cancers. However, the mechanistic involvement of LSINCT5 in endometrial carcinoma (EC) is still unknown. Here the authors aim to characterize the expression status of LSINCT5 and elucidate its mechanistic relevance to EC. Methods: Relative expression of LSINCT5 and HMGA2 were quantified by a real-time polymerase chain reaction. SiRNAs were employed to specifically knockdown endogenous LSINCT5 in EC cells. Cell proliferation was measured with Cell Count Kit-8 kit (CCK-8, Dojindo, Kumamoto, Japan) and cell growth was assessed by a colony formation assay. The cell cycle was analyzed with propidium iodide (PI) staining. Apoptotic cells were determined by flow cytometry after Annexin V/PI double-staining. Cell migration was evaluated by a wound-healing assay, and cell invasion was assessed using a transwell migration assay. The protein levels of HMGA2, Wnt3a, p-β-catenin, c-myc, β-actin, and GAPDH were determined by western blot. Results: The authors observed positively correlated and aberrantly up-regulated LSINCT5 and HMGA2 in EC. LSINCT5 deficiency significantly inhibited cell proliferation, cell cycle progression, and induced apoptosis. Meanwhile, cell migration and invasion were greatly compromised by the LSINCT5 knockdown. LSINCT5 stabilized HMGA2, which subsequently stimulated activation of Wnt/β-catenin signaling and consequently contributed to the oncogenic properties of LSINCT5 in EC. Conclusions: Our data uncovered the oncogenic activities and highlighted the mechanistic contributions of the LSINCT5-HMGA2-Wnt/β-catenin signaling pathway in EC.
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Affiliation(s)
- Hongye Jiang
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yong Li
- Department of Gastroenterological Surgery, the First People's Hospital of Foshan, Foshan, Guangdong, China
| | - Jie Li
- Department of Obstetrics and Gynecology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xuyu Zhang
- Department of Anesthesiology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Gang Niu
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shuqin Chen
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Two Road, Yuexiu District, Guangzhou, Guangdong 510080, China
| | - Shuzhong Yao
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Two Road, Yuexiu District, Guangzhou, Guangdong 510080, China
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19
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Li H, Han Q, Chen Y, Chen X, Ma R, Chang Q, Yin D. Upregulation of the long non-coding RNA FOXD2-AS1 is correlated with tumor progression and metastasis in papillary thyroid cancer. Am J Transl Res 2019; 11:5457-5471. [PMID: 31632522 PMCID: PMC6789238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Mounting evidence has shown that long non-coding RNAs (lncRNAs) play critical regulation roles in the progression of various cancers. However, the biological role and clinical value of lncRNA FOXD2-AS1 in papillary thyroid cancer (PTC) remain to be elucidated. METHODS The expression of FOXD2-AS1 in PTC tissues and cell lines was evaluated by RT-qPCR and in situ hybridization. The association between FOXD2-AS1 expression levels and clinicopathologic features was analyzed through tissue microarray. The biological function of FOXD2-AS1 in PTC cells was determined both in vitro through CCK-8, EdU staining, colony formation and cell invasion assays and in vivo through a xenograft tumor model. Functional and pathway enrichment analysis were also conducted to analyze the molecular mechanism. RESULTS FOXD2-AS1 was significantly upregulated in PTC tissues, and high FOXD2-AS1 expression was positively associated with malignant potential factors in PTC patients. In addition, high level of FOXD2-AS1 expression was an unfavorable independent prognostic biomarker for patients with PTC. Moreover, we found that knockdown of FOXD2-AS1 could effectively inhibit PTC cell proliferation and invasion in vitro and suppress tumor growth of PTC in vivo. Bioinformatics analysis indicated that activation of cell cycle and apoptosis pathways might be involved in the oncogenic function of FOXD2-AS1 in PTC. Moreover, we demonstrated that FOXD2-AS1 directly interacted with miR-185-5p as miRNA sponge and overexpression of FOXD2-AS1 partially reversed the suppressive effect of miR-185-5p in TPC cells. CONCLUSION Our findings suggest FOXD2-AS1 functions as an oncogene and promotes the tumor progression and metastasis in PTC, which might serve as a promising prognostic biomarker and potential therapeutic target for PTC patients.
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Affiliation(s)
- Hongqiang Li
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
| | - Qicai Han
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
| | - Yali Chen
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
| | - Xiaolong Chen
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
| | - Runsheng Ma
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
| | - Qungang Chang
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
| | - Detao Yin
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, Henan, China
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20
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Li M, Chen Y, Zhu J, Gao Z, Wang T, Zhou P. Long noncoding RNA CASC15 predicts unfavorable prognosis and exerts oncogenic functions in non-small cell lung cancer. Am J Transl Res 2019; 11:4303-4314. [PMID: 31396336 PMCID: PMC6684884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 05/23/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Aberrant expression of long non-coding RNA cancer susceptibility 15 (lncRNA CASC15) has been documented in various human tumors, and upregulation of CASC15 is closely correlated with cancer progression. However, the expression profile and potential biological functions of lncRNA CASC15 in non-small cell lung cancer (NSCLC) have not been fully characterized. METHODS The expression levels of CASC15 were assessed by qRT-PCR in human NSCLC tissues and by in situ hybridization in NSCLC tissue microarray. The relationship between CASC15 expression and clinical parameters, as well as prognosis were analyzed and validated in TCGA NSCLC datasets. The biological functions of CASC15 were analyzed by CCK-8 assay, cell migration and invasion assay in NSCLC cell lines in vitro. In addition, a mouse xenograft model was established to evaluate the effect of CASC15 knockdown on NSCLC tumor growth in vivo. Epithelial-mesenchymal transition (EMT) related molecules were examined by western blot and immunohistochemistry staining. RESULTS We found that CASC15 was upregulated in NSCLC tissues and cell lines. High expression levels of CASC15 were correlated with malignancies and poor survival rate in NSCLC patients. Multivariate analysis revealed that CASC15 was an independent risk factor of prognosis. In addition, we demonstrated that CASC15 knockdown inhibited NSCLC cell proliferation, migration and invasion in vitro. Xenograft model showed CASC15 knockdown significantly suppressed NSCLC tumor growth. Mechanistically, we revealed that CASC15 regulated EMT-related molecules and promoted the NSCLC progression and metastasis. CONCLUSION In summary, our findings suggest CASC15 exhibits an oncogenic role in promoting NSCLC tumorigenesis via regulating EMT.
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Affiliation(s)
- Min Li
- Department of Quality Management Office, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, China
| | - Yu Chen
- Department of Gerontology, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, China
| | - Jicun Zhu
- Department of Quality Management Office, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, China
| | - Zhan Gao
- Department of Quality Management Office, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, China
| | - Tao Wang
- Department of Cardiology, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, China
| | - Pengli Zhou
- Department of Intervention, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, China
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21
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Feng W, Ding Y, Zong W, Ju S. Non-coding RNAs in regulating gastric cancer metastasis. Clin Chim Acta 2019; 496:125-133. [PMID: 31276633 DOI: 10.1016/j.cca.2019.07.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/01/2019] [Accepted: 07/01/2019] [Indexed: 12/12/2022]
Abstract
Gastric cancer is one of the leading causes of cancer-related deaths worldwide, and mortality remains high, especially in East Asia. At present, the main method to diagnose gastric cancer is pathological biopsy. At the time of diagnosis, most patients have been diagnosed with advanced cancer and metastasis. The treatment of gastric cancer patients is mainly radical surgical resection and chemoradiotherapy, while patients with metastatic tumor have great challenges to radical surgery and are prone to drug resistance. Metastasis is an important factor affecting tumor development. In addition, evidence accumulated in the literature indicates that non-coding RNA plays a key role in tumor metastasis. This article reviews the role of ncRNAs in gastric cancer metastasis and discusses the regulatory mechanism in the development and treatment of gastric cancer.
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Affiliation(s)
- Wei Feng
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Ye Ding
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Wei Zong
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Shaoqing Ju
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China.
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22
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Nie ML, Han J, Huang HC, Guo T, Huangfu LT, Cheng XJ, Li XM, Du H, Li QD, Wen XZ, Ji JF. The novel lncRNA p4516 acts as a prognostic biomarker promoting gastric cancer cell proliferation and metastasis. Cancer Manag Res 2019; 11:5375-5391. [PMID: 31354346 PMCID: PMC6578592 DOI: 10.2147/cmar.s201793] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/05/2019] [Indexed: 12/18/2022] Open
Abstract
Purpose: Emerging evidence has shown that long noncoding RNAs (lncRNAs) participate in oncogenesis and tumor progression. We previously found a novel lncRNA p4516 which was closely associated with prognosis by preliminary study of lncRNA expression profile from paired tumors and nontumor tissues in 198 gastric cancer (GC) patients. However, the exact biological functions and the underlying molecular mechanisms of p4516 in gastric tumorigenesis still remain unclear. Materials and methods: The RNA fluorescence in situ hybridization (RNA-FISH) analysis, cytoplasmic and nuclear RNA isolation and qRT-PCR were applied to determine the subcellular localization of p4516. Expression levels of p4516 were assessed using qRT-PCR in both GC cell lines and in 142 primary GC tissues. Correlations between p4516 expression and GC patients’ clinicopathological parameters were analyzed. Gain- and loss-of-function experiments were employed to investigate the role of p4516 in proliferation, migration and invasion both in vitro and in vivo. In addition, Western blotting and immunohistochemical staining were used to examine the protein expression levels. Results: LncRNA p4516 was mainly localized in the nucleus of GC cells and p4516 tended to have higher expression levels in GC cells compared to the normal gastric mucosa-derived cells GES-1. Furthermore, higher expression levels of p4516 correlated with worse clinical outcomes in GC patients and acted as an independent prognostic biomarker. Functional analysis revealed that p4516 participated in the regulation of GC cell proliferation, invasion and migration both in vivo and in vitro. Moreover, p4516 was involved in epithelial–mesenchymal transition (EMT) in GC cells. Conclusion: Our study demonstrated the oncogenic role of novel lncRNA p4516 in the gastric carcinogenesis for the first time. High expression of p4516 may act as prognostic marker in patient with gastric cancer.
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Affiliation(s)
- Meng-Lin Nie
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Jing Han
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Han-Chen Huang
- Key Laboratory of RNA Biology, Beijing Key Laboratory of Noncoding RNA, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.,Centre for Cognitive Machines and Computational Health (CMaCH), The School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Ting Guo
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Long-Tao Huangfu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Xiao-Jing Cheng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Xiao-Mei Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Hong Du
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Qing-Da Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Xian-Zi Wen
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Jia-Fu Ji
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China.,Department of Gastrointestinal Surgery, Peking University Cancer Hospital, Beijing, People's Republic of China
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SOX21-AS1 is associated with clinical stage and regulates cell proliferation in nephroblastoma. Biosci Rep 2019; 39:BSR20190602. [PMID: 30992391 PMCID: PMC6522742 DOI: 10.1042/bsr20190602] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 03/30/2019] [Accepted: 04/02/2019] [Indexed: 11/17/2022] Open
Abstract
LncRNA SOX21 antisense RNA 1 (SOX21-AS1) dysregulated in many types of human cancer, and functioned as tumor suppressor or promoter depending on tumor types. However, there was no report about the role of SOX21-AS1 in nephroblastoma. In the present study, we first found that SOX21-AS1 expression was elevated in nephroblastoma tissues and cell lines compared with adjacent normal tissues and normal human embryonic kidney cell line, respectively. Moreover, we observed nephroblastoma patients with large tumor size, advanced National Wilms Tumor Study (NWTS) stage or unfavorable histopathological type, and patients that had higher SOX21-AS1 expression levels than nephroblastoma patients with small tumor size, early NWTS stage or favorable histopathological type. The in vitro studies suggested that knockdown of SOX21-AS1 suppressed nephroblastoma cell proliferation and colony formation, and induced cell-cycle arrest through up-regulating p57 expression. In conclusion, our study suggests that SOX21-AS1 functions as oncogenic lncRNA in nephroblastoma, which may provide a novel insight for nephroblastoma carcinogenesis.
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LSINCT5 predicts unfavorable prognosis and exerts oncogenic function in osteosarcoma. Biosci Rep 2019; 39:BSR20190612. [PMID: 30967495 PMCID: PMC6500890 DOI: 10.1042/bsr20190612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 03/26/2019] [Accepted: 03/28/2019] [Indexed: 12/24/2022] Open
Abstract
The dysregulated expression of LSINCT5 (long stress-induced non-coding transcript 5) has been found in various human tumors, and was generally related to cancer progression and unfavorable prognosis. Although the role of LSINCT5 in osteosarcoma was reported not long ago, the sample size of that study was limited. Our study presented more evidence about the clinical significance and biological function of LSINCT5 in osteosarcoma. In our results, we found LSINCT5 expression was increased in osteosarcoma tissue samples and cell lines, and high LSINCT5 expression was associated with advanced Enneking stage, large tumor size, high histological grade and present distant metastasis. Meanwhile, we observed high LSINCT5 expression was correlated with worse overall survival, and high LSINCT5 expression could be an independent poor predictor for overall survival in osteosarcoma cases. Moreover, we found inhibition of LSINCT5 expression suppressed cell proliferation, migration and invasion in vitro, and LSINCT5 overexpression dramatically facilitated cell proliferation, migration and invasion in vitro. In conclusion, our study suggests that LSINCT5 exerts oncogenic function in osteosarcoma cells, and may be a potential predictor for clinical outcome in osteosarcoma patients.
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25
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Zhao W, Li L. SP1-induced upregulation of long non-coding RNA HCP5 promotes the development of osteosarcoma. Pathol Res Pract 2019; 215:439-445. [PMID: 30554864 DOI: 10.1016/j.prp.2018.12.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/19/2018] [Accepted: 12/09/2018] [Indexed: 12/11/2022]
Abstract
Long non-coding RNAs (LncRNAs) are acknowledged as crucial regulators in tumorigenesis and tumor progression. In this study, we explored the mechanism and function of lncRNA HCP5 in osteosarcoma (OS). At first, five lncRNAs were chosen from GeneCard and subjected to qRT-PCR examination. The results indicated that HCP5 was significantly overexpressed in four OS cell lines. Northern blot assay further proved the higher expression of HCP5 in OS cell lines. To identify the biological role of HCP5 in OS, we silenced the expression of HCP5 in U2OS and MG-63 cells which possessed the highest level of HCP5. CCK-8 and colony formation assay revealed the inhibitory effect of HCP5 knockdown on cell proliferation. Cell apoptosis was found to be increased in cells transfected with sh-HCP5#1. Moreover, cell invasion and epithelial-mesenchymal transition (EMT) were reversed by the silencing of HCP5. The results of functional assays showed that HCP5 acted as an oncogene in osteosarcoma. Mechanically, HCP5 was found to be activated by the transcription factor SP1. Finally, rescue assays were conducted to demonstrate the function of SP1/HCP5 axis in osteosarcoma. In conclusion, we confirmed that SP1-induced upregulation of long non-coding RNA HCP5 promotes the development of osteosarcoma.
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Affiliation(s)
- Weidong Zhao
- Food Nutrition Center, West China Hospital, Sichuan University, Chengdu, 610041, No. 37, Guoxue Xiang, Wuhou District, Sichuan, China
| | - Li Li
- Department of Lymphoma, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chendu, 610041, No. 55 Section 4 South Renmin Road, Sichuan, China.
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26
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Liu Z, Li H, Fan S, Lin H, Lian W. STAT3-induced upregulation of long noncoding RNA HNF1A-AS1 promotes the progression of oral squamous cell carcinoma via activating Notch signaling pathway. Cancer Biol Ther 2018; 20:444-453. [PMID: 30404566 DOI: 10.1080/15384047.2018.1529119] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are a group of biomarkers which can regulate the biological processes of various human cancers. LncRNA HNF1A-AS1 has been reported in human cancers for its oncogenic role. This study focused on the biological function and molecular mechanism of HNF1A-AS1 in oral squamous cell carcinoma (OSCC). The high expression of HNF1A-AS1 was examined in OSCC tissues and cell lines. Kaplan Meier method revealed that high expression of HNF1A-AS1 predicted poor prognosis for patients with OSCC. Results of loss-of-function assays demonstrated that silenced HNF1A-AS1 inhibited the proliferation, migration and epithelial-mesenchymal transition (EMT) of OSCC cells. Mechanically, HNF1A-AS1 was positively regulated by the transcription factor STAT3. Recently, Notch signaling pathway has been reported in human malignancies. In this study, we analyzed the correlation between HNF1A-AS1 and Notch signaling pathway. It was uncovered that the expression of Notch1 and Hes1 (the core factors of Notch signaling pathway) was negatively regulated by HNF1A-AS1 knockdown. Rescue assays further demonstrated the positive regulatory effects of HNF1A-AS1 on Notch signaling pathway in OSCC. In conclusion, upregulation of HNF1A-SA1 induced by transcription factor STAT3 promotes OSCC progression by activating Notch signaling pathway.
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Affiliation(s)
- Zhe Liu
- a The Affiliated Stomatological Hospital of Nanchang University , The Key Laboratory of Oral Biomedicine , Nanchang , Jiangxi Province , China
| | - Hong Li
- a The Affiliated Stomatological Hospital of Nanchang University , The Key Laboratory of Oral Biomedicine , Nanchang , Jiangxi Province , China
| | - Sumeng Fan
- a The Affiliated Stomatological Hospital of Nanchang University , The Key Laboratory of Oral Biomedicine , Nanchang , Jiangxi Province , China
| | - Hui Lin
- b Department of Pathophysiology, Schools of Basic Sciences Nanchang University Medical College , Jiangxi Province Key Laboratory of Tumor Pathogenesis and Molecular Pathology , Nanchang, Jiangxi Province , China
| | - Wenwei Lian
- a The Affiliated Stomatological Hospital of Nanchang University , The Key Laboratory of Oral Biomedicine , Nanchang , Jiangxi Province , China
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