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Tao L, Song P, Shao L, Gao H, Ji K, Ren Y, Wang F, Wang M. miR-129-2-3p inhibits colon cancer cell proliferation by down-regulating the expression of BZW1. Arab J Gastroenterol 2024; 25:42-50. [PMID: 38220481 DOI: 10.1016/j.ajg.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/16/2023] [Accepted: 11/27/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND AND STUDY AIMS MicroRNA (miRNA) is involved in diverse biological and physiological processes of tumors. Dysregulation of miRNA will induce a series of human diseases. miR-129-2-3p has vital effects in the pathogenesis of various tumors. However, the regulatory function of miR-129-2-3p in colon cancer remains to be clarified. This study investigated the role of miR-129-2-3p targeting BZW1 in proliferation, apoptosis, migration, and invasion of colon cancer. PATIENTS AND METHODS Here, RT-qPCR was applied to measure the miR-129-2-3p levels in colon cancer tissues. The predicted targets of miR-129-2-3p were identified by bioinformatics and verified using luciferase reporter assay. The effects of miR-129-2-3p on colon cancer were detected by CCK-8, colony formation, transwell chamber test, wound healing, and flow cytometry assays. Finally, the influence of miR-129-2-3p on tumor growth was studied. Nude mice were xenografted with transfected Lovo cells by subcutaneous injection of 5 × 105 cells in 100 µl. HE staining and TUNEL were used to assess metastasis ability. RESULTS miR-129-2-3p level in colon cancer tissue was significantly reduced. Furthermore, it was verified that BZW1 was a target of miR-129-2-3p, and its expression in colon cancer cells was inhibited by miR-129-2-3p. Additionally, miR-129-2-3p inhibited colon cancer cell proliferation, colony formation, mobility ability and tumor growth, and promoted cell apoptosis by targeting BZW1. miR-129-2-3p overexpression in tumor xenografts in vivo decreased BZW1 expression, and suppressed tumor growth. CONCLUSION Collectively, these findings indicated that miR-129-2-3p exerts a suppressive role in colon cancer cells by directly targeting BZW1, and may have significant therapeutic implications for patients with colon cancer.
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Affiliation(s)
- Liang Tao
- Department of Gastrointestinal Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Peng Song
- Department of Gastrointestinal Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Lihua Shao
- Department of Gastrointestinal Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Hengfei Gao
- Department of Gastrointestinal Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Kangkang Ji
- Department of Gastrointestinal Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Yan Ren
- Department of Gastrointestinal Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China
| | - Feng Wang
- Department of Gastrointestinal Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China.
| | - Meng Wang
- Department of Gastrointestinal Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, China.
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Wei S, Wu X, Chen M, Xiang Z, Li X, Zhang J, Dong W. Exosomal- miR-129-2-3p derived from Fusobacterium nucleatum-infected intestinal epithelial cells promotes experimental colitis through regulating TIMELESS-mediated cellular senescence pathway. Gut Microbes 2023; 15:2240035. [PMID: 37550944 PMCID: PMC10411316 DOI: 10.1080/19490976.2023.2240035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 08/09/2023] Open
Abstract
Fusobacterium nucleatum (Fn) infection is known to exacerbate ulcerative colitis (UC). However, the link between Fn-infected intestinal epithelial cell (IEC)-derived exosomes (Fn-Exo) and UC progression has not been investigated. Differentially expressed miRNAs in Fn-Exo and non-infected IECs-derived exosomes (Con-Exo) were identified by miRNA sequencing. Then, the biological role and mechanism of Fn-Exo in UC development were determined in vitro and in vivo. We found that exosomes delivered miR-129-2-3p from Fn-infected IECs into non-infected IECs, exacerbating epithelial barrier dysfunction and experimental colitis. Mechanically, Fn-Exo induces DNA damage via the miR-129-2-3p/TIMELESS axis and subsequently activates the ATM/ATR/p53 pathway, ultimately promoting cellular senescence and colonic inflammation. In conclusion, Exo-miR-129-2-3p/TIMELESS/ATM/ATR/p53 pathway aggravates cellular senescence, barrier damage, and experimental colitis. The current study revealed a previously unknown regulatory pathway in the progression of Fn-infectious UC. Furthermore, Exosomal-miR-129-2-3p in serum and TIMELESS may function as novel potential diagnostic biomarkers for UC and Fn-high-UC.
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Affiliation(s)
- Shuchun Wei
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Xiaohan Wu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Key Laboratory of Hubei Province for Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Meilin Chen
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Key Laboratory of Hubei Province for Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Zixuan Xiang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Key Laboratory of Hubei Province for Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Xiangyun Li
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Key Laboratory of Hubei Province for Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Jixiang Zhang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Weiguo Dong
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
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Peng X, Wu X, Wu G, Peng C, Huang B, Huang M, Ding J, Mao C, Zhang H. MiR-129-2-3p Inhibits Esophageal Carcinoma Cell Proliferation, Migration, and Invasion via Targeting DNMT3B. Curr Mol Pharmacol 2023; 16:116-123. [PMID: 35260066 DOI: 10.2174/1874467215666220308122716] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 11/22/2022]
Abstract
PURPOSE The study aims to explore the regulatory mechanism of miR-129-2-3p underlying esophageal carcinoma (EC) cell progression and generate new ideas for targeted treatment of EC. METHODS Mature miRNA expression data and total RNA sequencing data of EC in the TCGAESCA dataset were utilized to explore differentially expressed miRNAs (DEmiRNAs). StarBase database was then utilized to predict targets of miRNA. MiR-129-2-3p and DNMT3B expression in EC cell lines was assayed through qRT-PCR and Western blot. CCK-8, scratch healing, and transwell assays were conducted to assess the impact of miR-129-2-3p on EC cell phenotypes. In addition, a dual-luciferase assay was completed to identify the binding relationship between DNMT3B and miR-129-2-3p. RESULTS MiR-129-2-3p was noticeably less expressed in EC cell lines, while DNMT3B was highly expressed. MiR-129-2-3p could bind to DNMT3B. Furthermore, in vitro functional experiments uncovered that overexpressed miR-129-2-3p repressed EC cell progression while further overexpressing DNMT3B would restore the above inhibitory effect. CONCLUSION MiR-129-2-3p is a cancer repressor in EC cells, and it could target DNMT3B, thus hampering the progression of EC cells.
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Affiliation(s)
- Xuyang Peng
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
| | - Xuhui Wu
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
| | - Gongzhi Wu
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
| | - Chongxiong Peng
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
| | - Bin Huang
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
| | - Mingjiang Huang
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
| | - Jianyang Ding
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
| | - Chaofan Mao
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
| | - Huaizhong Zhang
- Department of Cardiothoracic Surgery, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, China
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Ye Y, Lin Y, Chi Z, Zhang J, Cai F, Zhu Y, Tang D, Lin Q. Rolling circle amplification (RCA) -based biosensor system for the fluorescent detection of miR-129-2-3p miRNA. PeerJ 2022; 10:e14257. [PMID: 36312756 PMCID: PMC9610657 DOI: 10.7717/peerj.14257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 09/27/2022] [Indexed: 01/26/2023] Open
Abstract
Herein, a versatile fluorescent bioanalysis platform for sensitive and specific screening of target miRNA (miR-129-2-3p) was innovatively designed by applying target-induced rolling circle amplification (RCA) for efficient signal amplification. Specifically, miR-129-2-3p was used as a ligation template to facilitate its ligation with padlock probes, followed by an RCA reaction in the presence of phi29 DNA polymerase. The dsDNA fragments and products were stained by SYBR Green I and then detected by fluorescence spectrophotometry. As a result, miR-129-2-3p concentrations as low as 50 nM could be detected. Furthermore, the expression of miR-129-2-3p in breast cancer patients was about twice that in healthy people. Therefore, the results indicated that the RCA-based biosensor system could be a valuable platform for miRNA detection in clinical diagnosis and biomedical study.
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Affiliation(s)
- Yan Ye
- Fujian Normal University, College of Life Sciences, Fuzhou, Fujian, P. R. China
| | - Yao Lin
- Cooperation Base of Traditional Chinese Medicine-Oriented Chronic Disease Prevention and Treatment, Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Zilin Chi
- Fujian Normal University, College of Life Sciences, Fuzhou, Fujian, P. R. China
| | - Jiasheng Zhang
- The First Affiliated Hospital of Fujian Medical University, Department of Thyroid and Breast Surgery, Fuzhou, Fujian, P. R. China
| | - Fan Cai
- Fujian Normal University, College of Life Sciences, Fuzhou, Fujian, P. R. China
| | - Youzhi Zhu
- The First Affiliated Hospital of Fujian Medical University, Department of Thyroid and Breast Surgery, Fuzhou, Fujian, P. R. China
| | - Dianping Tang
- Fuzhou University, Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou, Fujian, P. R. China.
| | - Qingqiang Lin
- Fujian Normal University, College of Life Sciences, Fuzhou, Fujian, P. R. China
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Ou W, Lin L, Chen R, Xu Q, Zhou C. Circ_0081143 Contributes to Gastric Cancer Malignant Development and Doxorubicin Resistance by Elevating the Expression of YES1 by Targeting mziR-129-2-3p. Gut Liver 2022; 16:861-874. [PMID: 35686503 DOI: 10.5009/gnl210354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/04/2021] [Accepted: 11/17/2021] [Indexed: 11/04/2022] Open
Abstract
Background/Aims The increased mortality of gastric cancer (GC) is mainly attributed to the development of chemoresistance. Circular RNAs, as the novel type of biomarkers in GC, have attracted wide attention. The purpose of this study was to investigate the functional role of circ_0081143 in GC with doxorubicin (DR) resistance and its potential action mechanism. Methods The expression of circ_0081143, miR-129-2-3p and YES proto-oncogene 1 (YES1) in GC tissues and cells was measured by quantitative real-time polymerase chain reaction. The half maximal inhibitory concentration value was calculated based on the MTT cell viability assay. Cell proliferation and apoptosis were monitored by MTT and flow cytometry assays. Transwell assays were employed to check cell migration and invasion. The protein levels of YES1 and apoptosis-related proteins were detected by western blotting. The interaction between miR-129-2-3p and circ_0081143 or YES1 was verified by dual-luciferase reporter and pull-down assays. A tumorigenicity assay was conducted to verify the role of circ_0081143 in vivo. Results Circ_0081143 was highly expressed in DR-resistant GC tumor tissues and cells. Depletion of circ_0081143 reduced DR resistance and inhibited DR-resistant GC cell proliferation, migration and invasion. Circ_0081143 targeted miR-129-2-3p and inhibited the role of miR-129-2-3p. In addition, YES1 was a target of miR-129-2-3p, and its function was suppressed by miR-129-2-3p. Importantly, circ_0081143 positively modulated the expression of YES1 through mediating miR-129-2-3p. Circ_0081143 knockdown weakened the DR-resistant GC tumor growth in vivo. Conclusions Circ_0081143 knockdown weakened DR resistance and blocked the development of DR-resistant GC by regulating the miR-129-2-3p/YES1 axis. Our data suggest that circ_0081143 is a promising target for the treatment of GC with DR resistance.
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Affiliation(s)
- Wenting Ou
- Departments of 1Medical Oncology and 2Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Lin Lin
- Departments of 1Medical Oncology and 2Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Rihong Chen
- Departments of 1Medical Oncology and 2Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Qingwen Xu
- Departments of 1Medical Oncology and 2Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Caijin Zhou
- Departments of 1Medical Oncology and 2Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
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Wang GY, Luan ZL, Che NW, Yan DB, Sun XW, Zhang C, Yin J. Inhibition of microRNA-129-2-3p protects against refractory temporal lobe epilepsy by regulating GABRA1. Brain Behav 2021; 11:e02195. [PMID: 34029007 PMCID: PMC8323041 DOI: 10.1002/brb3.2195] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 03/30/2021] [Accepted: 05/05/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Accumulating evidence demonstrates that certain microRNAs play critical roles in epileptogenesis. Our previous studies found microRNA (miR)-129-2-3p was induced in patients with refractory temporal lobe epilepsy (TLE). In this study, we aimed to explore the role of miR-129-2-3p in TLE pathogenesis. METHOD By bioinformatics, we predicted miR-129-2-3p may target the gene GABRA1 encoding the GABA type A receptor subunit alpha 1. Luciferase assay was used to investigate the regulation of miR-129-2-3p on GABRA1 3'UTR. The dynamic expression of miR-129-2-3p and GABRA1 mRNA and protein levels were measured in primary hippocampal neurons and a rat kainic acid (KA)-induced seizure model by quantitative reverse transcription-polymerase chain reaction (qPCR), Western blotting, and immunostaining. MiR-129-2-3p agomir and antagomir were utilized to explore their role in determining GABRA1 expression. The effects of targeting miR-129-2-3p and GABRA1 on epilepsy were assessed by electroencephalography (EEG) and immunostaining. RESULTS Luciferase assay, qPCR, and Western blot results suggested GABRA1 as a direct target of miR-129-2-3p. MiR-129-2-3p level was significantly upregulated, whereas GABRA1 expression downregulated in KA-treated rat primary hippocampal neurons and KA-induced seizure model. In vivo knockdown of miR-129-2-3p by antagomir alleviated the seizure-like EEG findings in accordance with the upregulation of GABRA1. Furthermore, the seizure-suppressing effect of the antagomir was partly GABRA1 dependent. CONCLUSIONS The results suggested GABRA1 as a target of miR-129-2-3p in rat primary hippocampal neurons and a rat kainic acid (KA) seizure model. Silencing of miR-129-2-3p exerted a seizure-suppressing effect in rats. MiR-129-2-3p/GABRA1 pathway may represent a potential target for the prevention and treatment of refractory epilepsy.
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Affiliation(s)
- Guan-Yu Wang
- Department of Neurosurgery, the Second Affiliated Hospital of Dalian Medical University, Dalian, China.,Epileptic Center of Liaoning, the Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zhi-Lin Luan
- Department of Neurosurgery, the Second Affiliated Hospital of Dalian Medical University, Dalian, China.,Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, China
| | - Ning-Wei Che
- Department of Neurosurgery, the Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - De-Bin Yan
- Department of Neurosurgery, the Second Affiliated Hospital of Dalian Medical University, Dalian, China.,Epileptic Center of Liaoning, the Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiao-Wan Sun
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, China
| | - Cong Zhang
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, China
| | - Jian Yin
- Department of Neurosurgery, the Second Affiliated Hospital of Dalian Medical University, Dalian, China.,Epileptic Center of Liaoning, the Second Affiliated Hospital of Dalian Medical University, Dalian, China
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Zhang Y, Liu H, Zhang Q, Zhang Z. 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] [What about the content of this article? (0)] [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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Huang S, Lv Z, Wen Y, Wei Y, Zhou L, Ke Y, Zhang Y, Xu Q, Li L, Guo Y, Li D, Xie C, Guo Y, Cheng J. miR-129-2-3p directly targets SYK gene and associates with the risk of ischaemic stroke in a Chinese population. J Cell Mol Med 2019; 23:167-176. [PMID: 30499219 PMCID: PMC6307781 DOI: 10.1111/jcmm.13901] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 08/16/2018] [Indexed: 02/05/2023] Open
Abstract
Spleen tyrosine kinase (SYK) gene has been identified as novel susceptibility locus for ischaemic stroke (IS) previously. However, regulation of SYK gene remains unknown in IS. In this study, we aimed to identify miRNAs that might be involved in the development of IS by targeting SYK gene. miRNAs were firstly screened by bioinformatics predicting tool. The expression levels of SYK gene were detected by qRT-PCR and western blotting, respectively, after miRNA transfection. Luciferase reporter assay was applied to investigate the direct binding between miRNAs and target gene. miRNA levels were detected by miRNA TaqMan assays in the blood cells of 270 IS patients and 270 control volunteers. Results suggest that SYK gene might be a direct target of miR-129-2-3p. The blood level of miR-129-2-3p was significantly lower in IS patients (P < 0.05), and negatively associated with the risk of IS (adjusted OR: 0.88; 95% CI: 0.80-0.98; P = 0.021) by multivariable logistic regression analysis. The blood levels of SYK gene were significantly higher in IS patients, and miR-129-2-3p expression was negatively correlated with mean platelet volume. In summary, our study suggests that miR-129-2-3p might be involved in the pathogenesis of IS through interrupting SYK expression and the platelet function, and further investigation is needed to explore the underlying mechanism.
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Affiliation(s)
- Suli Huang
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Ziquan Lv
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Ying Wen
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Yazhen Wei
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Li Zhou
- Department of School HygieneShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Yuebin Ke
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Yanwei Zhang
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Qianhui Xu
- Department of NeurologyPeople's Hospital of ShenzhenGuangdongChina
| | - Lu Li
- Research Center of Translational MedicineThe Second Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Yinsheng Guo
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Di Li
- Department of NeurologyPeople's Hospital of ShenzhenGuangdongChina
| | - Changhui Xie
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
| | - Yi Guo
- Department of NeurologyPeople's Hospital of ShenzhenGuangdongChina
| | - Jinquan Cheng
- Department of Molecular EpidemiologyShenzhen Center for Disease Control and PreventionShenzhenGuangdongChina
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