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Mao G, Liu J. Research on the mechanism of exosomes from different sources influencing the progression of lung cancer. ENVIRONMENTAL TOXICOLOGY 2024; 39:4231-4248. [PMID: 38760988 DOI: 10.1002/tox.24292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/12/2024] [Accepted: 04/09/2024] [Indexed: 05/20/2024]
Abstract
As a key regulator of intercellular communication, exosomes are essential for tumor cells. In our study, we will explore the mechanisms of exosomes from different sources on lung cancer. We isolated CD8+T cells and cancer-associated fibroblasts (CAFs) from venous blood and tumor tissues of lung cancer patients, and isolated exosomes. MiR-2682 was high expression in CD8+T-derived exosomes, and lncRNA-FOXD3-AS1 was upregulated in CAF-derived exosomes. Online bioinformatics database analysis showed that RNA Binding Motif Protein 39 (RBM39) was identified as the target of miR-2682, and eukaryotic translation initiation factors 3B (EIF3B) was identified as the RNA binding protein of FOXD3-AS1. CD8+T-derived exosomes inhibited the growth of A549 cells and promoted apoptosis, while miR-2682 inhibits reversed these effects of CD8+T-derived exosomes. CAF-derived exosomes promoted the growth of A549 cells and inhibited apoptosis, while FOXD3-AS1 siRNA reversed the effect of CAF-derived exosomes. Mechanism studies have found that miR-2682 inhibits the growth of lung cancer cells by inhibiting the expression of RBM39. FOXD3-AS1 promoted the growth of lung cancer cells by binding to EIF3B. In vivo experiments showed that CD8+T cell-derived exosome miR-2682 inhibited lung cancer tumor formation, while CAF-derived exosome FOXD3-AS1 promoted lung cancer tumor formation. This study provides mechanistic insights into the role of miR-2682 and FOXD3-AS1 in lung cancer progression and provides new strategies for lung cancer treatment.
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Affiliation(s)
- Guangxian Mao
- Peking University Shenzhen Hospital Medical College, Anhui Medical University, Shenzhen, People's Republic of China
- Department of Thoracic Surgery, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
| | - Jixian Liu
- Peking University Shenzhen Hospital Medical College, Anhui Medical University, Shenzhen, People's Republic of China
- Department of Thoracic Surgery, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
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Liu C, Ren Q, Deng J, Wang S, Ren L. c-MYC/METTL3/LINC01006 positive feedback loop promotes migration, invasion and proliferation of non-small cell lung cancer. Biomed J 2024; 47:100664. [PMID: 37774794 PMCID: PMC11340496 DOI: 10.1016/j.bj.2023.100664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 09/07/2023] [Accepted: 09/25/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND This study aims to clarify the N6-methyladenosine (m6A) modification of LINC01006, which is involved in migration, invasion and proliferation of non-small cell lung cancer (NSCLC). MATERIALS AND METHODS LINC01006 and METTL3 expressions were analyzed in TCGA-LUAD cohort. Colony formation assay, wound-healing assay and transwell assay were performed to evaluate the ability of colony formation, migration and invasion. Q-PCR and western blot analysis determined gene expressions. M6A-RNA immunoprecipitation and m6A quantification assay were used to evaluate m6A modification. qChIP assay was used to validate transcriptional target. Luciferase assay validated the miRNA targets and transcriptional targets. In-situ xenograft model were included to evaluate tumor proliferation in vivo. RESULTS LINC01006 and METTL3 expressions were elevated in NSCLC cells and tissues. LINC01006 promoted the migration and invasion of NSCLC via epithelial - mesenchymal transition (EMT). The expression of LINC01006 was positively correlated to the expression of METTL3. METTL3 promoted tumor formation and proliferation in the in-situ xenograft model of NSCLC. The expression of LINC01006 was increased by METTL3 via m6A modification. c-MYC directly induced METTL3. Both c-MYC and LINC01006 were commonly targeted by miR-34a/b/c and miR-2682, and thereby c-MYC/METTL3/LINC01006 formed a positive feedback loop through miRNA targets in NSCLC. CONCLUSIONS LINC01006 is an oncogenic lncRNA, which induces migration, invasion and proliferation of NSCLC. METTL3 increases LINC01006 expression through stabilizing LINC01006 mRNA. c-MYC, as a transcription factor, activates METTL3, which results in an elevated level of LINC01006. c-MYC, METTL3 and LINC01006 form a positive feedback loop through multiple miRNA targets in NSCLC.
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Affiliation(s)
- Chunfeng Liu
- Department of Respiratory and Critical Care medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Department of Allergy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Faculty of Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Qiang Ren
- Department of Respiratory and Critical Care medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Department of Allergy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Jun Deng
- Department of Respiratory and Critical Care medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Department of Allergy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Songping Wang
- Department of Respiratory and Critical Care medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Department of Allergy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Lei Ren
- Department of General Surgery (Gastrointestinal Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China; Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany.
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Zhang X, Liu J, Ji M, Qi G, Qiao R. Long Noncoding RNA GUSBP11 Knockdown Alleviates Nasopharyngeal Carcinoma via Regulating miR-1226-3p/ TM9SF4 Axis. Cancer Biother Radiopharm 2024; 39:133-143. [PMID: 35675666 DOI: 10.1089/cbr.2021.0391] [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] [Indexed: 12/13/2022] Open
Abstract
Purpose: Long noncoding RNAs (lncRNAs) have been confirmed related to the occurrence and progress of multiple cancers, including cervical cancer nasopharyngeal carcinoma (NPC). This study focused on assessing GUSBP11 effects on NPC progression and exploring possible mechanisms. Materials and Methods: RT-qPCR was conducted for assessing GUSBP11 levels within NPC tissues and cells. CCK-8, colony formation, and Transwell were adopted for examining GUSBP11 impacts on NPC cell proliferation and cell metastasis. RT-qPCR analysis and dual-luciferase reporter assay were conducted for judging the expression interrelation of GUSBP11 and its potential target miR-1226-3p. The same methods were carried out for verifying the inhibiting influences of miR-1226-3p upregulation and its potential target TM9SF4. Results: GUSBP11 levels were upregulated within NPC tissues and cells. GUSBP11 downregulation repressed NPC cell proliferation and cell metastasis. In addition, GUSBP11 targeted and negatively regulated miR-1226-3p. Furthermore, miR-1226-3p targeted TM9SF4 and mediated GUSBP11's impacts on TM9SF4 levels. At last, the authors proved the critical role of the GUSBP11/miR-1226-3p/TM9SF4 axis in regulating NPC progression. Conclusion: These findings indicate that downregulation of GUSBP11 alleviates NPC development by regulating the miR-1226-3p/TM9SF4 axis.
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Affiliation(s)
- Xiaofeng Zhang
- Department of Otolaryngology, Head and Neck Surgery, Weihai Maternal and Child Health Hospital, Affiliated Weihai Hospital of Qingdao University, Weihai, China
| | - Jinzhi Liu
- Department of the First Internal Medicine, Dongying District People's Hospital, Dongying, China
| | - MengMeng Ji
- Blood Purifying Center, Affiliated Qingdao Central Hospital of Qingdao University, Qingdao, China
| | - GuiQin Qi
- Department of Outpatient, The Second Affiliated Hospital of Shandong First Medical University, Taian, China
| | - Renling Qiao
- Department of Otolaryngology, Laiyang Central Hospital, Yantai, China
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Jiang S, Wang T, Han Y, Hida T, Afzal MZ, Zhou C, Zhu J, Wang H. Downregulation of homeobox B8 in attenuating non-small cell lung cancer cell migration and invasion though the epithelial-mesenchymal transition pathway. Transl Cancer Res 2024; 13:413-422. [PMID: 38410214 PMCID: PMC10894350 DOI: 10.21037/tcr-23-2344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 01/22/2024] [Indexed: 02/28/2024]
Abstract
Background Homeobox (HOX) family genes have been identified as regulators of cancer development. No research exists concerning the mechanisms underlying homeobox B8 (HOXB8) activity in non-small cell lung cancer (NSCLC). In this study, we investigated expression and biological function in NSCLC to determine whether it is an important marker of patient prognosis. Methods HOXB8 expression in NSCLC tissues was investigated using immunohistochemistry (IHC) and Western blot assays. In addition, HOXB8 was knocked down in NSCLC cells to assess its biological functions in this context. The invasive and migratory potential of cells was evaluated by using Transwell (BD, Franklin Lakes, NJ, USA) inserts with 8-µm pores. Furthermore, Western blotting was used to explore whether HOXB8 can influence epithelial-mesenchymal transition (EMT). Results HOXB8 was expressed at high levels in NSCLC tissues and cell lines compared with adjacent normal tissues. Patients with high HOXB8 expression had shorter survival time and worse prognosis. HOXB8 expression was associated with pathological grading, tumor size, and lymph node metastasis. HOXB8 was prognostic in patients with NSCLC. After knockdown of HOXB8 via small interfering RNA, the proliferation, migration and invasion ability of the cells were significantly reduced compared with the control group. Moreover, EMT was inhibited by the downregulation of HOXB8 expression, as the expressions of E-cadherin was upregulated and that of the N-cadherin, vimentin, matrix metalloproteinase 2 (MMP2), and twist were downregulated. HOXB8 is a member of the ANTP homeobox family and encodes a nuclear protein with a homeobox DNA-binding domain. It is included in a cluster of homeobox B genes located on chromosome 17. The encoded protein functions as a sequence-specific transcription factor that is involved in development. Conclusions HOXB8 is highly expressed in NSCLC and may predict prognosis of patients with this type of cancer. Furthermore, HOXB8 may promote NSCLC progression through the regulation of the EMT process.
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Affiliation(s)
- Suxin Jiang
- Department of Thoracic Surgery, Air Force Medical Center, People’s Liberation Army of China, Beijing, China
- Graduate School of China Medical University, Shenyang, China
| | - Tao Wang
- Department of Thoracic Surgery, Air Force Medical Center, People’s Liberation Army of China, Beijing, China
| | - Yong Han
- Department of Thoracic Surgery, Air Force Medical Center, People’s Liberation Army of China, Beijing, China
| | - Toyoaki Hida
- Lung Cancer Center, Central Japan International Medical Center, Minokamo, Gifu, Japan
| | | | - Chuanhong Zhou
- Department of Thoracic Surgery, Air Force Medical Center, People’s Liberation Army of China, Beijing, China
| | - Jingna Zhu
- Department of Thoracic Surgery, Air Force Medical Center, People’s Liberation Army of China, Beijing, China
| | - Huaiyu Wang
- Department of Thoracic Surgery, Air Force Medical Center, People’s Liberation Army of China, Beijing, China
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Gu M, Liu K, Xiong H, You Q. MiR-130a-3p inhibits endothelial inflammation by regulating the expression of MAPK8 in endothelial cells. Heliyon 2024; 10:e24541. [PMID: 38298633 PMCID: PMC10828701 DOI: 10.1016/j.heliyon.2024.e24541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/07/2023] [Accepted: 01/10/2024] [Indexed: 02/02/2024] Open
Abstract
MicroRNA-130a-3p (miR-130a-3p) has been reported as closely related to atherosclerosis (AS). This study is to survey the effects of miR-130a-3p in endothelial cells (ECs) treated with oxidized low-density lipoprotein (ox-LDL) and explore underlying mechanisms. The proliferation and apoptosis of ox-LDL-treated HUVEC cells were determined by CCK-8, EdU, and flow cytometry assays. ELISA and Western blot analysis measured the expressions of cytokines and protein levels. Bioinformatics and dual-luciferase reporter assay were performed to predict and confirm that Mitogen-activated protein kinase 8 (MAPK8) was a direct target of miR-130a-3p, and MAPK8 was negatively associated with miR-130a-3p. As expected, miR-130a-3p was down-regulated in ox-LDL-treated HUVEC cells, and up-regulation of miR-130a-3p promoted proliferation and inhibited apoptosis of ox-LDL-treated HUVEC cells. Furthermore, miR-130a-3p mimics suppressed the expressions of TNF-α and IL-6 and decreased the protein levels of VCAM-1, ICAM-1 and E-selectin. MAPK8 was highly expressed in ox-LDL-treated HUVEC cells, and silence of MAPK8 promoted proliferation inhibited apoptosis, suppressed inflammatory responses, and decreased the levels of VCAM-1, ICAM-1, and E-selectin, over-expression of MAPK8 partially restored the functional effects of miR-130a-3p on proliferation, inflammatory responses, and the expressions of VCAM-1, ICAM-1 and E-selectin. This study indicates that miR-130a-3p may emerge as an effective target for treating AS.
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Affiliation(s)
- Mingming Gu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Kun Liu
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Hui Xiong
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Qingsheng You
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China
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Liu Z, Ke S, Wang Q, Gu X, Zhai G, Shao H, He M, Guo J. Analyzing roles of small nucleolar RNA host gene 25 from clinical, molecular target and tumor formation in prostate cancer. Exp Cell Res 2023:113686. [PMID: 37307941 DOI: 10.1016/j.yexcr.2023.113686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 06/04/2023] [Accepted: 06/06/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Prostate cancer (PCa) is one of the most deadly and metastatic cancers of the urinary tract. Latest studies have confirmed that long non-coding RNAs (lncRNAs) play a crucial role in a variety of cancers. Some of these lncRNAs code for small nucleolar RNAs (snoRNAs), called small nucleolar RNA host genes (SNHGs), which exert some value in predicting the prognosis of certain cancer patients, but little is known regarding the function of SNHGs within the PCa. AIM OF THE STUDY To explore the expression distribution and differential analysis of SNHGs in different tumors using RNA-seq and survival data from TCGA and GTEx, and to assess the potential impacts of the lncRNA SNHG25 on human PCa. To validate the expression of SNHG25 using experimental data and to investigate in detail its particular molecular biological function on PCa both in vivo and in vitro. METHODS LncRNA SNHG25 expression was analyzed by bioinformatic prediction and qPCR. CCK-8, EdU, transwell, wound healing, and western blotting assays were conducted to investigate the main role of lncRNA SNHG25 in PCa. Xenograft tumour growth model in nude mice was surveyed by in vivo imaging and Ki-67 staining. AKT pathway activator (SC79) was used to verify the interaction among SNHG25 and PI3K/AKT signaling pathway. RESULTS Bioinformatics analysis and experimental research illuminated that the expression of lncRNA SNHG25 was observably up-regulated in PCa tissues and cells. Moreover, SNHG25 knockdown restrained PCa cell proliferation, invasion and migration, while promoting apoptosis. Xenografts model confirmed that the si-SNHG25 group had a significant inhibitory effect on PCa tumour growth in vivo. Additionally, a series of gain-of-function analyses suggested that SNHG25 could activate the PI3K/AKT pathway to accelerate PCa progression. CONCLUSIONS These in vitro and in vivo findings demonstrate that SNHG25 is highly expressed in PCa and facilitates PCa development through regulation of PI3K/AKT signaling pathway. SNHG25 acts as an oncogene to predict tumour malignancy and survival in PCa patients and may therefore become a promising potential molecular target for early detection and therapy of lethal PCa.
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Affiliation(s)
- Zelin Liu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shuai Ke
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Qinghua Wang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xuhang Gu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410000, China
| | - Guanzhong Zhai
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Haoren Shao
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Mu He
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jia Guo
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Goričan L, Büdefeld T, Čelešnik H, Švagan M, Lanišnik B, Potočnik U. Gene Expression Profiles of Methyltransferases and Demethylases Associated with Metastasis, Tumor Invasion, CpG73 Methylation, and HPV Status in Head and Neck Squamous Cell Carcinoma. Curr Issues Mol Biol 2023; 45:4632-4646. [PMID: 37367043 DOI: 10.3390/cimb45060294] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/12/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
Epigenetic studies on the role of DNA-modifying enzymes in HNSCC tumorigenesis have focused on a single enzyme or a group of enzymes. To acquire a more comprehensive insight into the expression profile of methyltransferases and demethylases, in the present study, we examined the mRNA expression of the DNA methyltransferases DNMT1, DNMT3A, and DNMT3B, the DNA demethylases TET1, TET2, TET3, and TDG, and the RNA methyltransferase TRDMT1 by RT-qPCR in paired tumor-normal tissue samples from HNSCC patients. We characterized their expression patterns in relation to regional lymph node metastasis, invasion, HPV16 infection, and CpG73 methylation. Here, we show that tumors with regional lymph node metastases (pN+) exhibited decreased expression of DNMT1, 3A and 3B, and TET1 and 3 compared to non-metastatic tumors (pN0), suggesting that metastasis requires a distinct expression profile of DNA methyltransferases/demethylases in solid tumors. Furthermore, we identified the effect of perivascular invasion and HPV16 on DNMT3B expression in HNSCC. Finally, the expression of TET2 and TDG was inversely correlated with the hypermethylation of CpG73, which has previously been associated with poorer survival in HNSCC. Our study further confirms the importance of DNA methyltransferases and demethylases as potential prognostic biomarkers as well as molecular therapeutic targets for HNSCC.
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Affiliation(s)
- Larisa Goričan
- Centre for Human Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia
| | - Tomaž Büdefeld
- Centre for Human Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia
| | - Helena Čelešnik
- Centre for Human Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia
- Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty of Chemistry and Chemical Engineering, University of Maribor, 2000 Maribor, Slovenia
| | - Matija Švagan
- Department of Otorhinolaryngology, Cervical and Maxillofacial Surgery, University Medical Centre Maribor, Ljubljanska ulica 5, 2000 Maribor, Slovenia
| | - Boštjan Lanišnik
- Department of Otorhinolaryngology, Cervical and Maxillofacial Surgery, University Medical Centre Maribor, Ljubljanska ulica 5, 2000 Maribor, Slovenia
| | - Uroš Potočnik
- Centre for Human Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia
- Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty of Chemistry and Chemical Engineering, University of Maribor, 2000 Maribor, Slovenia
- Department for Science and Research, University Medical Centre Maribor, 2000 Maribor, Slovenia
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Screening and Biological Function Analysis of miRNA and mRNA Related to Lung Adenocarcinoma Based on Bioinformatics Technology. JOURNAL OF ONCOLOGY 2022; 2022:4339391. [PMID: 36090902 PMCID: PMC9452934 DOI: 10.1155/2022/4339391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 07/29/2022] [Accepted: 07/30/2022] [Indexed: 11/17/2022]
Abstract
Objective. To screen the differentially expressed miRNAs (DEMs) and the differentially expressed gene mRNAs (DEGs) in lung adenocarcinoma (LUAD) from the TCGA database and to explore the relationship between miRNAs and the prognosis of lung adenocarcinoma and their biological functions. Methods. The RNA-seq and miRNA-seq data of lung adenocarcinoma samples were downloaded from the TCGA database for analysis, and the R program was used to screen for differentially expressed miRNAs and mRNAs. Then, the molecular functions, biological processes, cellular components, and signaling pathways involved in the occurrence and development of LUAD were analyzed using the functional accumulation analysis software of GSEA. The relationship between the integrated differentially expressed RNAs was analyzed by miRcode, TargetScan, and miRTarbase databases, and the miRNA-mRNA network was constructed. Result. A total of 516 differentially expressed miRNAs and 5464 differentially expressed mRNAs were identified in LUAD. The GSEA enrichment analysis showed that miRNAs and mRNAs were mainly enriched in extracellular structure organization, external encapsulating structure organization, extracellular matrix organization, and gated channel activity. They were mainly involved in neuroactive ligand-receptor interaction signaling pathway. Some miRNAs and mRNAs in clustering modules were found to be associated with the prognosis of LUAD. Four targeting networks consisting of 22 miRNAs and 531 mRNAs were constructed. Conclusion. The miRNA and mRNA related to the prognosis of LUAD were screened out, which provided a valuable preliminary basis for the follow-upin-depth clinical research and basic experimental research of LUAD.
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Chen B, Wang T, Zhang J, Zhang S, Shang X. Identification of Colon Cancer-Related RNAs Based on Heterogeneous Networks and Random Walk. BIOLOGY 2022; 11:1003. [PMID: 36101384 PMCID: PMC9312154 DOI: 10.3390/biology11071003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/25/2022] [Accepted: 06/28/2022] [Indexed: 11/17/2022]
Abstract
Colon cancer is considered as a complex disease that consists of metastatic seeding in early stages. Such disease is not simply caused by the action of a single RNA, but is associated with disorders of many kinds of RNAs and their regulation relationships. Hence, it is of great significance to study the complex regulatory roles among mRNAs, miRNAs and lncRNAs for further understanding the pathogenic mechanism of colon cancer. In this study, we constructed a heterogeneous network consisting of differentially expressed mRNAs, miRNAs and lncRNAs. This contains three kinds of vertices and six types of edges. All RNAs were re-divided into three categories, which were "related", "irrelevant" and "unlabeled". They were processed by dynamic excitation restart random walk (RW-DIR) for identifying colon cancer-related RNAs. Ten RNAs were finally obtained related to colon cancer, which were hsa-miR-2682-5p, hsa-miR-1277-3p, ANGPTL1, SLC22A18AS, FENDRR, PHLPP2, hsa-miR-302a-5p, APCDD1, MEX3A and hsa-miR-509-3-5p. Numerical experiments have indicated that the proposed network construction framework and the following RW-DIR algorithm are effective for identifying colon cancer-related RNAs, and this kind of analysis framework can also be easily extended to other diseases, effectively narrowing the scope of biological experimental research.
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Affiliation(s)
- Bolin Chen
- School of Computer Science, Northwestern Polytechnical University, Xi’an 710072, China; (B.C.); (T.W.); (J.Z.)
| | - Teng Wang
- School of Computer Science, Northwestern Polytechnical University, Xi’an 710072, China; (B.C.); (T.W.); (J.Z.)
| | - Jinlei Zhang
- School of Computer Science, Northwestern Polytechnical University, Xi’an 710072, China; (B.C.); (T.W.); (J.Z.)
| | - Shengli Zhang
- School of Information Technology, Minzu Normal University of Xingyi, Xingyi 562400, China;
| | - Xuequn Shang
- School of Computer Science, Northwestern Polytechnical University, Xi’an 710072, China; (B.C.); (T.W.); (J.Z.)
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Du Y, Chen Y, Wu T, Fan X, Lin W, Jiang Z. miR-2682-3p antagonizes its host lncRNA-MIR137HG by interacting with the same target FUS to regulate the progression of gastric cancer. BMC Cancer 2022; 22:689. [PMID: 35733138 PMCID: PMC9219209 DOI: 10.1186/s12885-022-09740-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 06/02/2022] [Indexed: 12/24/2022] Open
Abstract
Background The mechanism of long non-coding RNA MIR137HG in human gastric cancer (GC) is currently unknown. In the present study, we aimed to explore the function and mechanism of MIR137HG in gastric cancer. Methods The expression of lncRNA-MIR137HG in 69 gastric cancer samples and their paired surgical margin (SM) tissue samples were tested by QRT-PCR. UCSC was used to find the gene location relationship among MIR137HG and its embedded miRNAs. TargetScan was used to predict the targets of miR-2682-3p. Starbase was used to predict the candidate proteins that interacted with MIR137HG. Western blot, co-focus, and RIP assay were used to verify the direct interaction between MIR137HG and FUS (fused in sarcoma/translocated in liposarcoma, FUS/TLS), while dual-luciferase reporter assay was used to confirm the interaction between miR-2682-3p and FUS. Cell migration assays, colony formation, and xenografts assay were used to investigate the function of MIR137HG and miR-2682-3p to tumor growth and metastasis. Western blot assay was used to explore the downstream candidate protein of FUS. Results Data showed that MIR137HG expressed significantly higher in GC than in SM. MIR137HG promoted colony formation and migration in vitro and promoted tumor formation and metastasis in vivo. MIR137HG is distributed in both the nucleus and cytoplasm. It was co-located with FUS and could directly interact with FUS, which might interact with other proteins, such as MET(MET-proto-oncogene, receptor tyrosine kinase), RHOC(ras homolog family member), and CTNNB1(catenin beta1). These proteins may involve different signaling pathways to regulate gastric cancer progression. By contrast, the embedded miR-2682-3p could antagonize the series functions of its host lncRNA-MIR137HG by targeting FUS. Conclusions lncRNA-MIR137HG promoted growth and metastasis in gastric cancer by interacting with FUS, while miR-2682-3p could inhibit the function of MIR137HG via the same target FUS. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09740-9.
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Affiliation(s)
- Yantao Du
- The Affiliated Hospital of Medical School of Ningbo University, Renmin Road No.247, Ningbo, 315020, Zhejiang, China. .,Ningbo Institute of Medical Science, Yangshan Road No.42-46, Ningbo, 315020, Zhejiang, China.
| | - Yichen Chen
- The Affiliated Hospital of Medical School of Ningbo University, Renmin Road No.247, Ningbo, 315020, Zhejiang, China.,Ningbo Institute of Medical Science, Yangshan Road No.42-46, Ningbo, 315020, Zhejiang, China
| | - Tao Wu
- The Affiliated Hospital of Medical School of Ningbo University, Renmin Road No.247, Ningbo, 315020, Zhejiang, China
| | - Xiaodan Fan
- Medical School of Ningbo University, Fenghua Road No.818, Ningbo, 315211, Zhejiang, China
| | - Wei Lin
- The Affiliated Hospital of Medical School of Ningbo University, Renmin Road No.247, Ningbo, 315020, Zhejiang, China.,Zhejiang Pharmaceutical College, Ningbo, 315100, ZhejiangZhejiang, China
| | - Zhouhua Jiang
- Ningbo Medical Centre Lihui Li Eastern Hospital, Ningbo University, Jiangnan Road No.1111, Ningbo, 330212, Zhejiang, China. .,Ningbo Women and Children Hospital, Ningbo Liuting Road No.339, Ningbo, 315012, Zhejiang, China.
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11
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The Overexpression of TOB1 Induces Autophagy in Gastric Cancer Cells by Secreting Exosomes. DISEASE MARKERS 2022; 2022:7925097. [PMID: 35465266 PMCID: PMC9019440 DOI: 10.1155/2022/7925097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 12/17/2022]
Abstract
We previously confirmed that transducer of ERBB2, 1 (TOB1) gene, can induce autophagy in gastric cancer cells. Studies have shown the biogenesis of exosomes overlaps with different autophagy processes, which helps to maintain the self-renewal and homeostasis of body cells. This study is aimed at verifying whether overexpressing TOB1 induces autophagy by secreting exosomes in gastric cancer cells and its underlying mechanisms. Differential ultracentrifugation was used to extracted the exosomes from the culture medium of gastric cancer cell line AGS-TOB1 ectopically overexpressing TOB1 (exo-AGS-TOB1, experimental group) and AGS-empty-vector cell line with low expression of endogenous TOB1 (exo-AGS-Vector, control group). Exosomal markers CD9 and TSG101 were determined in both the cell supernatants of exo-AGS-TOB1 and exo-AGS-Vector by Western blot. Under the transmission electron microscope (TEM), the exosomes were round and saucer-like vesicles with double-layer membrane structure, and the vesicles showed different translucency due to different contents. The peak size of exosomes detected by nanoparticle tracking analysis (NTA) was about 100 nm. When the exosomes of exo-AGS-TOB1 and exo-AGS-Vector were cocultured with TOB1 knockdown gastric cancer cell line HGC-27-TOB1-6E12 for 48 hours, the conversion of autophagy-related protein LC3-I to LC3-II in HGC-27-TOB1-6E12 gastric cancer cells cocultured with exo-AGS-TOB1 was significantly higher than that in the control group, and the ratio of LC3-II/LC3-I was statistically different (P < 0.05). More autophagosomes in HGC-27-TOB1-6E12 cells cocultured with exo-AGS-TOB1 for 48 hours were observed under TEM, while fewer autophagosomes were found in the control group. Lastly, miRNAs were differentially expressed by cell supernatant-exosomal whole transcriptome sequencing. Thus, our results provide new insights into TOB1-induced autophagy in gastric cancer.
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Song Y, Wang S, Cheng X. LINC01006 regulates the proliferation, migration and invasion of hepatocellular carcinoma cells through regulating miR-433-3p/CBX3 axis. Ann Hepatol 2022; 25:100343. [PMID: 33781916 DOI: 10.1016/j.aohep.2021.100343] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVES LINC01006 has been verified to be correlated with several cancer types, whereas its biological function in hepatocellular carcinoma (HCC) is still elusive. This study aimed to elucidate the specific regulatory mechanism of LINC01006 in the tumorigenesis of HCC. MATERIALS AND METHODS The expression of LINC01006, miR-433-3p and CBX3 in HCC tissues and cells was assessed by qRT-PCR or Western blot. MTT, wound-healing, and transwell assays were used to evaluate the effects of LINC01006 on cell viability, migration, and invasion in vitro. A mouse xenograft model was established for in vivo assays. The relations among LINC01006, miR-433-3p, and CBX3 were analyzed by MS2-RNA immunoprecipitation (RIP) and Dual-luciferase reporter (DLR) assays. RESULTS The expression of LINC01006 was up-regulated in HCC tissues and cells. LINC01006 knockdown inhibited the viability, wound healing rate, and invasive cell number of HeP3B and SK-HeP-1 cells, and decreased the tumor volume and weight in a mouse xenograft model. MiR-433-3p was a target of LINC01006, and LINC01006 overexpression inhibited the viability, wound healing rate, and invasive cell number of HeP3B and SK-HeP-1 cells. In addition, CBX3 was a target of miR-433-3p, which was negatively regulated by miR-433-3p. CBX3 overexpression and miR-433-3p inhibition reversed the inhibiting effects of LINC01006 knockdown on the viability, migration, and invasion of HeP3B cells. CONCLUSIONS Silencing of LINC01006 inhibited the viability, migration, and invasion of HCC cells through regulating miR-433-3p/CBX3 axis.
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Affiliation(s)
- Yaobo Song
- Department of Oncology, Yantai Mountain Hospital, No. 91, Jiefang Road, Zhifu District, Yantai City, Shandong Province, 264000, China
| | - Shuang Wang
- The First Department of Oncology, Tai'an City Central Hospital, No. 29, Longtan Road, Tai'an City, Shandong Province, 271000, China
| | - Xiangming Cheng
- Department of Hematology and Oncology, Jinxiang People's Hospital, No. 117, East Jinfeng Road, Jinxiang County, Jining City, Shandong Province, 272200, China.
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13
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Wu Y, Yu B, Li Y, Yu F, Li Z, Chen D, Jiang F, Bo J, Xue H, Lv H, Li H. LINC01006 and miR-3199 Serve as Novel Markers of Poor Prognosis in Colon Cancer and Regulate Cell Proliferation, Migration and Invasion. Int J Gen Med 2022; 15:1677-1687. [PMID: 35210837 PMCID: PMC8858767 DOI: 10.2147/ijgm.s334701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/30/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Colon cancer is the most commonly diagnosed gastrointestinal cancer. This research intended to evaluate the prognostic values of LINC01006 and miR-3199 for colon cancer and their effects on cell physiology. Patients and Methods LINC01006 and miR-3199 expression levels were determined by RT-qPCR. Patients’ 5-year cumulative survival rate was analyzed by Kaplan–Meier curves with the Log rank test. Chi-square test and multivariate Cox regression analysis were used to access the clinical significance. CCK-8 assay, transwell assay, and TUNEL assays were used to monitor the change of cell proliferation, invasion, migration, and apoptosis. Results The expression level of LINC01006 was increased while miR-3199 was decreased in colon tissues and cells compared to normal ones. This dysregulated expression was correlated with T stage (P = 0.002) and N stage (P = 0.009). High LINC01006 level (HR = 4.048, 95%: 1.502–10.911, P = 0.006) or low miR-3199 level (HR = 3.421, 95% CI: 1.254–9.330, P = 0.016) was outstanding for predicting poor prognosis in patients with colon cancer. Downregulation of LINC01006 reduced cell proliferation, invasion, and migration but induced cell apoptosis (P < 0.05). Conclusion LINC01006 knockdown showed anti-proliferative, anti-metastatic, and apoptotic-induced effects on colon cancer cells. This study contributes to research on promising prognostic biomarkers of colon cancer and might give way to further investigation of alternative tumor targets.
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Affiliation(s)
- Yaoqiang Wu
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
- Correspondence: Yaoqiang Wu, Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China, Tel/Fax + 86-415-2819133, Email
| | - Bo Yu
- Department of Gastroenterology, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Yaping Li
- Department of Intensive Care Unit, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Fuxiang Yu
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Zhongguo Li
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Daxin Chen
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Feng Jiang
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Jianbo Bo
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Hongwei Xue
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Hongyang Lv
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
| | - Haiyang Li
- Department of General Surgery, Dandong First Hospital, Dandong, Liaoning, People’s Republic of China
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Knockdown of long non-coding RNA LINC01006 represses the development of hepatocellular carcinoma by modulating the miR-194-5p/CADM1 axis. Ann Hepatol 2022; 27 Suppl 1:100571. [PMID: 34718169 DOI: 10.1016/j.aohep.2021.100571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/16/2021] [Accepted: 05/21/2021] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVES Long non-coding RNAs (lncRNAs) have great potential as therapeutic targets in hepatocellular carcinoma (HCC). In this study, we aimed to uncover the function and molecular mechanism of long intergenic non-protein coding RNA 1006 (LINC01006) in HCC. MATERIALS AND METHODS Mice were injected with HCC cells in order to establish the HCC model. Quantitative reverse transcription polymerase chain reaction was used to determine the expression levels of LINC01006, cell adhesion molecule 1 (CADM1), and microRNA (miR)-194-5p in HCC tissues and cells. The cell proliferation, invasion, and migration abilities were assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide, transwell, and wound healing assays. The interrelation between LINC01006, miR-194-5p, and CADM1 was confirmed by a dual-luciferase reporter assay. Western blotting was employed to assess the relative protein expression level of CADM1. RESULTS LINC01006 and CADM1 displayed upregulation, but miR-194-5p exhibited downregulation in HCC cells and tissues. Short hairpin (sh)-LINC01006 and miR-194-5p mimics repressed the proliferative, migratory, and invasive capacities of HCC cells, and injection of sh-LINC01006 restrained the growth of HCC tumours in mice. LINC01006 served as a competing endogenous RNA of miR-194-5p and was inversely correlated with miR-194-5p. CADM1 was targeted by miR-194-5p, inversely correlated with miR-194-5p, and positively associated with LINC01006. Furthermore, transfection of pcDNA-CADM1 or the miR-194-5p inhibitor reversed the suppressive effects of sh-LINC01006 on the proliferation, invasion, and migration abilities of HCC cells. CONCLUSIONS Downregulation of LINC01006 repressed the development of HCC by sponging miR-194-5p to modulate the expression of CADM1, implying its potential as a therapeutic target for HCC.
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Li X, Chen S, Zhu Y, Fei J, Song L, Sun G, Niu W, Guo L, Wang J. Comprehensive bioinformatics analyses identified Homeobox B9 as a potential prognostic biomarker and therapeutic target for gastric cancer. J Gastrointest Oncol 2021; 12:2132-2149. [PMID: 34790380 DOI: 10.21037/jgo-21-598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/16/2021] [Indexed: 12/24/2022] Open
Abstract
Background The Homeobox B (HOXB) family promotes tumor progression, but the mechanism of its action in gastric cancer (GC) is unclear. We sought to identify the HOXB family members that are critical to the prognosis of GC patients. Methods The Oncomine, Gene Expression Profiling Interactive Analysis (GEPIA), cBioPortal, UALCAN, Kaplan-Meier plotter, and the GeneMANIA databases were used to analyze the messenger RNA (mRNA) expression levels, prognostic value, and gene-gene interaction network of the HOXB9 family members in GC. The expression of HOXB9 in GC and its relationship with various clinicopathological parameters and the prognosis of patients were verified by immunohistochemistry. Results The expression of HOXB3, HOXB5, HOXB6, HOXB7, HOXB9, and HOXB13 mRNA was significantly upregulated in GC. There was a significant correlation between the upregulation of HOXB3, HOXB5, and HOXB9 mRNA and a low overall survival (OS) rate. The high expression of HOXB7, HOXB9, and HOXB13 mRNA was closely correlated to tumor grade and stage. HOXB9 was the HOXB family member most closely related to the occurrence and development of GC. A further analysis showed that HOXB9 might be involved in deoxyribonucleic acid repair and division regulation. A validation study showed that the advanced cancer group had a higher level of HOXB9 expression than the early cancer group. The high expression of HOXB9 in gastric tissue plays an important role in the survival and prognosis of GC patients. Conclusions HOXB family members have different degrees of abnormal expression in GC. High HOXB9 expression in GC tissues was significantly correlated with a worse prognosis. Thus, HOXB9 is a potential novel biomarker and therapeutic target for GC.
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Affiliation(s)
- Xiaofei Li
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Shujia Chen
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yinghui Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jiayue Fei
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Liaoyuan Song
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Guoyan Sun
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Wei Niu
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Lianyi Guo
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jiwei Wang
- Department of Gastrointestinal Surgery, Xuzhou Central Hospital, Xuzhou, China
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Mao G, Mu Z, Wu D. Exosome-derived miR-2682-5p suppresses cell viability and migration by HDAC1-silence-mediated upregulation of ADH1A in non-small cell lung cancer. Hum Exp Toxicol 2021; 40:S318-S330. [PMID: 34477002 DOI: 10.1177/09603271211041997] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Introduction: Increasing evidence indicated that miR-2682-5p acted as a tumor suppressor in various cancers. The current study aimed to investigate the biological function of exosomal miR-2682-5p in non-small cell lung cancer (NSCLC).Methods: The expression of miR-2682-5p in NSCLC tissues and adjacent non-tumor tissues, NSCLC cell lines and human embryonic lung fibroblast, as well as serum and serum exosomes of NSCLC patients and healthy donors was detected by RT-qPCR. The effects of miR-2682-5p on the viability, migration, and apoptosis of NSCLC cells were detected by CCK-8, Transwell, and flow cytometry assays. Dual-luciferase reporter gene and RNA immunoprecipitation assays were used to evalutate the relationship between miR-2682-5p and HDAC1.Results: Low expressed miR-2682-5p was found in tumor tissues, cell lines, serum, and serum exosomes of NSCLC patients. MiR-2682-5p overexpression suppressed NSCLC cell viability and migration and promoted apoptosis, while miR-2682-5p knockdown showed the opposite results. Furthermore, exosomes from healthy donor serum inhibited NSCLC cell viability and migration and promoted apoptosis. Dual-luciferase reporter gene and RNA immunoprecipitation assays verified that HDAC1 was a target of miR-2682-5p. HDAC1 overexpression abolished the effects of miR-2682-5p mimic on NSCLC cell viability, migration, and apoptosis. Chromatin immunoprecipitation assay indicated that HDAC1 bound to the promoter region of ADH1A. Upregulation of ADH1A counteracted the effects of HDAC1 overexpression on NSCLC cell viability, migration, and apoptosis.Conclusion: Taken together, exosomal miR-2682-5p inhibited NSCLC cell viability and migration and promoted apoptosis by the HDAC1/ADH1A axis, and this result might provide a novel therapeutic target for NSCLC.
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Affiliation(s)
- Guangxian Mao
- Department of Thoracic Surgery, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
| | - Zhimin Mu
- Department of Thoracic Surgery, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
| | - Da Wu
- Department of Thoracic Surgery, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
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Cai G, Yang Q, Sun W. RSF1 in cancer: interactions and functions. Cancer Cell Int 2021; 21:315. [PMID: 34147108 PMCID: PMC8214769 DOI: 10.1186/s12935-021-02012-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 06/10/2021] [Indexed: 12/25/2022] Open
Abstract
RSF1, remodelling and spacing factor 1, is an important interphase centromere protein and is overexpressed in many types of cancers and correlated with poor overall survival. RSF1 has functions mainly in maintaining chromosome stability, facilitating DNA repair, maintaining the protein homeostasis of RSF1 and suppressing the transcription of some oncogenes when RSF1 protein is expressed at an optimal level; however, RSF1 overexpression facilitates drug resistance and cell cycle checkpoint inhibition to prompt cancer proliferation and survival. The RSF1 expression level and gene background are crucial for RSF1 functions, which may explain why RSF1 has different functions in different cancer types. This review summarizes the functional domains of RSF1, the overexpression status of RSF1 and SNF2H in cancer based on the TCGA and GTEX databases, the cancer-related functions of RSF1 in interacting with H2Aub, HDAC1, CENP-A, PLK1, ATM, CENP-S, SNF2H, HBX, BubR1, cyclin E1, CBP and NF-κB and the potential clinical value of RSF1, which will lay a theoretical foundation for the structural biology study of RSF1 and application of RSF1 inhibitors, truncated RSF1 proteins and SNF2H inhibitors in the treatment of RSF1-overexpressing tumours.
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Affiliation(s)
- Guiyang Cai
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qing Yang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Wei Sun
- Department of Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, School of Life Sciences, China Medical University, Shenyang, China.
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Long Noncoding RNA LINC01006 Facilitates Cell Proliferation, Migration, and Epithelial-Mesenchymal Transition in Lung Adenocarcinoma via Targeting the MicroRNA 129-2-3p/CTNNB1 Axis and Activating Wnt/β-Catenin Signaling Pathway. Mol Cell Biol 2021; 41:e0038020. [PMID: 33753463 DOI: 10.1128/mcb.00380-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Lung adenocarcinoma (LUAD) is a common type of malignancy of lung cancers. Long intergenic noncoding RNAs (lincRNAs) have emerged as crucial regulators of various cancers, including LUAD. LINC01006 is a newly discovered long noncoding RNA (lncRNA) whose function in LUAD remains to be explored. This study is to explore the role of LINC01006 in LUAD. Quantitative real-time PCR (RT-qPCR) analysis and Western blotting were used to determine the expression levels and protein levels, respectively. Functional assays and animal experiments investigated the role of LINC01006 both in vivo and in vitro. Moreover, TOP/FOP assay was performed to detect the activation of the Wnt/β-catenin signaling pathway. The interaction between LINC01006 and microRNA 29-2-3-p (miR-29-2-3-p)/catenin beta 1 (CTNNB1) was explored by RNA binding protein immunoprecipitation (RIP), RNA pulldown, luciferase reporter assays, and rescue experiments. According to the results, LINC01006 was highly expressed in LUAD tissues and cell lines. LINC01006 knockdown significantly suppressed cell proliferative, migratory, and epithelial-mesenchymal transition (EMT) capacities and tumor development. Moreover, LINC01006 enhanced CTNNB1 via sequestering miR-129-2-3p and activated the Wnt/β-catenin pathway in LUAD. Overall, LINC01006 promotes LUAD development via activating the Wnt/β-catenin pathway, implying that LINC01006 might be a promising biomarker for LUAD treatment.
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Čelešnik H, Büdefeld T, Čizmarević B, Švagan M, Potočnik U. MIR137/MIR2682 locus is associated with perineural invasiveness in head and neck cancer. J Oral Pathol Med 2021; 50:874-881. [PMID: 33740841 DOI: 10.1111/jop.13174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/06/2021] [Accepted: 03/01/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Head and neck cancer (HNSCC) is one of the most lethal cancers characterized by high relapse and poor prognosis. Several miRNAs have been implicated in HNSCC, including the tumor suppressor miR-137. A large CpG island (CpG73) spans most of the miR-137 gene sequence and stretches 659-bp downstream, ending just upstream of miR-2682 in the same host gene. Here, we assessed the role of the MIR137/MIR2682 locus in HNSCC. METHODS MiRNA expression was analyzed in paired cancerous and normal tissues from 77 HNSCC patients by Quantitative Reverse-Transcription PCR. CpG73 methylation in paired tissues from 48 patients was determined by combined bisulfite restriction analysis. Associations between expression and methylation levels and patient clinicopathological parameters were investigated. RESULTS Decreased expression of miR-137 (P<0.01) and miR-2682 (P<0.01) precursors was observed in cancerous tissues, most significantly in oropharyngeal tumors. Lower miR-137 levels correlated with increased perineural invasiveness (P = 0.04). Predicted common miRNA targets MTDH and Notch1 were upregulated in tumor tissues. The CpG73 region between miR-137 and miR-2682 was hypermethylated in tumors. Methylation was observed in 60.4% of cancerous compared to 31.6% of normal tissues, and methylation levels were significantly higher (P<0.01) in tumors. Increased methylation correlated with decreased disease-free patient survival (P = 0.024). CONCLUSION The MIR137/MIR2682 locus correlated with HNSCC perineural invasiveness. This is the first report showing miR-2682 downregulation in head and neck cancer. Our results support the tumor suppressive role of miR-137 and miR-2682. The inverse correlation between CpG73 hypermethylation and disease-free survival suggests this epigenetic mark may have prognostic value in HNSCC.
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Affiliation(s)
- Helena Čelešnik
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia.,Faculty of Medicine, Center for Human Molecular Genetics & Pharmacogenomics, University of Maribor, Maribor, Slovenia
| | - Tomaž Büdefeld
- Faculty of Medicine, Center for Human Molecular Genetics & Pharmacogenomics, University of Maribor, Maribor, Slovenia
| | - Bogdan Čizmarević
- Department of Otorhinolaryngology, Cervical and Maxillofacial Surgery, University Medical Centre Maribor, Maribor, Slovenia
| | - Matija Švagan
- Department of Otorhinolaryngology, Cervical and Maxillofacial Surgery, University Medical Centre Maribor, Maribor, Slovenia
| | - Uroš Potočnik
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia.,Faculty of Medicine, Center for Human Molecular Genetics & Pharmacogenomics, University of Maribor, Maribor, Slovenia
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Tian L, Han F, Yang J, Ming X, Chen L. Long non‑coding RNA LINC01006 exhibits oncogenic properties in cervical cancer by functioning as a molecular sponge for microRNA‑28‑5p and increasing PAK2 expression. Int J Mol Med 2021; 47:46. [PMID: 33576457 PMCID: PMC7891833 DOI: 10.3892/ijmm.2021.4879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/20/2021] [Indexed: 12/13/2022] Open
Abstract
As previously reported, long intergenic non‑protein‑coding RNA 1006 (LINC01006) plays crucial roles in prostate, pancreatic and gastric cancers. However, whether it plays important roles in cervical cancer remains unclear. The present study thus aimed to determine the precise role of LINC01006 in cervical cancer and elucidate its regulatory mechanisms. The expression of LINC01006 in cervical cancer was examined by reverse transcription‑quantitative polymerase chain reaction. Cell proliferation assay, flow cytometric analysis, Transwell migration and invasion assays, and tumor xenograft model experiments were performed to elucidate the roles of LINC01006 in cervical cancer. Bioinformatics analysis, luciferase reporter assay, RNA immunoprecipitation and rescue experiments were performed for mechanistic analyses. The expression of LINC01006 was found to be upregulated in cervical cancer and to be associated with a poor prognosis. The absence of LINC01006 inhibited the proliferation, migration and invasion of cervical cancer cells, whereas it promoted cell apoptosis in vitro. The downregulation of LINC01006 impeded tumor growth in vivo. LINC01006 was verified as an endogenous 'sponge' that competed for microRNA‑28‑5p (miR‑28‑5p), which resulted in the upregulation of the miR‑28‑5p target P21‑activated kinase 2 (PAK2). Rescue experiments revealed that the suppression of miR‑28‑5p expression or the overexpression of PAK2 abrogated the effects of LINC01006 downregulation on malignant cellular functions in cervical cancer. On the whole, the present study demonstrates that LINC01006 exhibits tumor‑promoting functions in cervical cancer via the regulation of the miR‑28‑5p/PAK2 axis. These findings may provide the basis for the identification of LINC01006‑targeted clinical therapy.
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Affiliation(s)
- Libin Tian
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Feng Han
- Department of Respiratory Medicine, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, P.R. China
| | - Jing Yang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiaoqiong Ming
- Department of Obstetrics and Gynecology, China Resources WISCO General Hospital, Wuhan, Hubei 430080, P.R. China
| | - Lili Chen
- Department of Obstetrics and Gynecology, China Resources WISCO General Hospital, Wuhan, Hubei 430080, P.R. China
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Zhang S, Li C, Zhang Z, Li Y, Li Q, Geng F, Liu J, Pan Y. Analysis of differentially expressed genes in oral epithelial cells infected with Fusobacterium nucleatum for revealing genes associated with oral cancer. J Cell Mol Med 2020; 25:892-904. [PMID: 33289330 PMCID: PMC7812288 DOI: 10.1111/jcmm.16142] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 11/12/2020] [Accepted: 11/17/2020] [Indexed: 01/04/2023] Open
Abstract
Accumulating evidence links Fusobacterium nucleatum with tumorigenesis. Our previous study demonstrated that F. nucleatum infection can induce epithelial‐mesenchymal transition (EMT) in oral epithelial cells and elaborated a probable signal pathway involved in the induction of EMT. However, the comprehensive profiling and pathways of other candidate genes involved in F. nucleatum promoting malignant transformation remain largely elusive. Here, we analysed the transcriptome profile of HIOECs exposed to F. nucleatum infection. Totally, 3307 mRNAs (ǀLog2FCǀ >1.5) and 522 lncRNAs (ǀLog2FCǀ >1) were identified to be differentially expressed in F. nucleatum‐infected HIOECs compared with non‐infected HIOECs. GO and KEGG pathway analyses were performed to investigate the potential functions of the dysregulated genes. Tumour‐associated genes were integrated, and top 10 hub genes (FYN, RAF1, ATM, FOS, CREB, NCOA3, VEGFA, JAK2, CREM and ATF3) were identified by protein‐protein interaction (PPI) network, and Oncomine was used to validate hub genes' expression. LncRNA‐hub genes co‐expression network comprising 67 dysregulated lncRNAs were generated. Together, our study revealed the alteration of lncRNA and potential hub genes in oral epithelial cells in response to F. nucleatum infection, which may provide new insights into the shift of normal to malignant transformation initiated by oral bacterial infection.
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Affiliation(s)
- Shuwei Zhang
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Chen Li
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Zhiying Zhang
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Yuchao Li
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Qian Li
- Department of Oral Biology, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Fengxue Geng
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Junchao Liu
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Yaping Pan
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China.,Department of Oral Biology, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
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22
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Lu N, Yin Y, Yao Y, Zhang P. SNHG3/miR-2682-5p/HOXB8 promotes cell proliferation and migration in oral squamous cell carcinoma. Oral Dis 2020; 27:1161-1170. [PMID: 32989886 DOI: 10.1111/odi.13656] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/30/2020] [Accepted: 08/28/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The potential molecular mechanism underlying the disease progression of oral squamous cell carcinoma (OSCC) remains largely elusive. The purpose of the study is to figure out the role and molecular mechanism of homeobox B8 (HOXB8) in OSCC. MATERIALS AND METHODS The expression level of HOXB8 in OSCC was validated by RT-qPCR. The functions of HOXB8 in OSCC cells were identified through loss-of-function assays, including CCK-8 assay, colony formation assay, transwell assay, and immunofluorescence (IF). The upstream miRNA that could directly target HOXB8 was searched out through bioinformatics analysis and luciferase reporter assay. Mechanism experiments were further conducted to predict the long non-coding RNA (lncRNA) that could positively regulate HOXB8 and compete for miR-2682-5p with HOXB8. RESULTS HOXB8 was markedly upregulated in OSCC tissues and cell lines. Furthermore, cell proliferation and migration were inhibited due to the shortage of HOXB8. HOXB8 was targeted by miR-2682-5p that negatively regulated cell proliferation and migration. Small nucleolar RNA host gene 3 (SNHG3) acted as a sponge for miR-2682-5p. Inhibition of miR-2682-5p or the overexpression of HOXB8 rescued the effects of SNHG3 silencing on the proliferation and migration. CONCLUSION HOXB8 is regulated by SNHG3/miR-2682-5p axis to promote OSCC cell proliferation and migration.
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Affiliation(s)
- Na Lu
- Department of Stomatology, North China University of Science and Technology Affiliated Hospital, Tangshan, China
| | - Yue Yin
- Department of Stomatology, North China University of Science and Technology Affiliated Hospital, Tangshan, China
| | - Yuan Yao
- Department of Stomatology, North China University of Science and Technology Affiliated Hospital, Tangshan, China
| | - Peng Zhang
- Department of Stomatology, Taixing People's Hospital, Taizhou, China
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23
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Ma E, Wang Q, Li J, Zhang X, Guo Z, Yang X. LINC01006 facilitates cell proliferation, migration and invasion in prostate cancer through targeting miR-34a-5p to up-regulate DAAM1. Cancer Cell Int 2020; 20:515. [PMID: 33088221 PMCID: PMC7574442 DOI: 10.1186/s12935-020-01577-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 09/25/2020] [Indexed: 02/06/2023] Open
Abstract
Background Prostate cancer (PCa) is a kind of malignancy occurring in the prostate gland. Substantial researches have proved the major role of long noncoding RNAs (lncRNAs) in PCa. However, the role of long intergenic non-protein coding RNA 1006 (LINC01006) in PCa has not been investigated yet. Methods RT-qPCR was used to examine the expression levels of LINC01006 and its downstream targets. The function of LINC01006 in PCa was tested by in vitro and in vivo assays. With application of RNA pull down, RNA immunoprecipitation (RIP) and luciferase reporter assays, the interaction among LINC01006, miR-34a-5p and disheveled associated activator of morphogenesis 1 (DAAM1) were verified. Results LINC01006 expression presented high in PCa cell lines. LINC01006 silencing suppressed cell proliferative, migratory, invasive capacities while accelerated apoptotic rate. Besides, LINC01006 knockdown also suppressed tumor growth and metastasis in vivo. Furthermore, miR-34a-5p, a tumor suppressor in PCa, was sponged by LINC01006. Moreover, DAAM1 was targeted by miR-34a-5p and promoted PCa progression. More intriguingly, rescue assays suggested that the inhibitory effect of LINC01006 knockdown on PCa development was offset by DAAM1 overexpression. Conclusions LINC01006 promoted PCa progression by sponging miR-34a-5p to up-regulate DAAM1, providing a novel target for PCa therapy.
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Affiliation(s)
- Enhui Ma
- Department of Urology, Southwest Shandong Hospital Co., Ltd, Liaocheng, 252300 Shandong China
| | - Qianqian Wang
- Department of Nephrology, Zaozhuang Municipal Hospital, Zaozhuang, 277100 Shandong China
| | - Jinhua Li
- Orthopeadic Surgery, Southwest Shandong Hospital Co., Ltd, Liaocheng, 252300 Shandong China
| | - Xinqi Zhang
- Department of Urology, Shandong Zibo Mining Group Central Hospital, Zibo, 255120 Shandong China
| | - Zhenjia Guo
- Department of Urology, Southwest Shandong Hospital Co., Ltd, Liaocheng, 252300 Shandong China
| | - Xiaofeng Yang
- Department of Urology, Zaozhuang Municipal Hospital, NO.41 Longtou Road, Shizhong District, Zaozhuang, 277100 Shandong China
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Long noncoding RNA TSLNC8 enhances pancreatic cancer aggressiveness by regulating CTNNB1 expression via association with HuR. Hum Cell 2020; 34:165-176. [PMID: 32951177 DOI: 10.1007/s13577-020-00429-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/04/2020] [Indexed: 12/21/2022]
Abstract
Pancreatic cancer (PC) is one of the most lethal malignancies worldwide. Tumor suppressor long noncoding RNA on chromosome 8p12 (TSLNC8) is a newly identified long noncoding RNA (lncRNA) and play an important role in human cancers. However, the function and molecular mechanism of TSLNC8 in PC progression remain to be elucidated. Our results showed a significant increase of TSLNC8 expression in PC tissues and cell lines. Upregulation of TSLNC8 expression in PC tissues was closely correlated with TNM stage, distant and lymph node metastasis, and poor prognosis of PC patients. Functional experiments demonstrated that TSLNC8 promoted PC cells proliferation and invasion in vitro, and enhanced PC growth and metastasis in vivo. Mechanistically, TSLNC8 associated with HuR, promoted the binding of HuR with CTNNB1 mRNA and increased the stability of CTNNB1 mRNA, thus activating WNT/β-catenin signaling pathway. Taken together, our present study revealed that oncogenic lncRNA TSLNC8 positively regulate PC growth and metastasis via HuR-mediated mRNA stability of CTNNB1, extending the understanding of PC pathogenesis regulated by lncRNAs.
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