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Zhong C, Tao B, Li X, Xiang W, Peng L, Peng T, Chen L, Xia X, You J, Yang X. HOXA-AS2 contributes to regulatory T cell proliferation and immune tolerance in glioma through the miR-302a/KDM2A/JAG1 axis. Cell Death Dis 2022; 13:160. [PMID: 35181676 PMCID: PMC8857186 DOI: 10.1038/s41419-021-04471-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 11/23/2021] [Accepted: 12/10/2021] [Indexed: 02/06/2023]
Abstract
Long non-coding RNAs (lncRNAs) have been manifested to manipulate diverse biological processes, including tumor-induced immune tolerance. Thus, we aimed in this study to identify the expression pattern of lncRNA homeobox A cluster antisense RNA 2 (HOXA-AS2) in glioma and decipher its role in immune tolerance and glioma progression. We found aberrant upregulation of lncRNA HOXA-AS2, lysine demethylase 2A (KDM2A), and jagged 1 (JAG1) and a downregulation of microRNA-302a (miR-302a) in glioma specimens. Next, RNA immunoprecipitation, chromatin immunoprecipitation, and dual-luciferase reporter gene assay demonstrated that lncRNA HOXA-AS2 upregulated KDM2A expression by preventing miR-302a from binding to its 3′untranslated region. The functional experiments suggested that lncRNA HOXA-AS2 could promote regulatory T (Treg) cell proliferation and immune tolerance, which might be achieved through inhibition of miR-302a and activation of KDM2A/JAG1 axis. These findings were validated in a tumor xenograft mouse model. To conclude, lncRNA HOXA-AS2 facilitates KDM2A/JAG1 expression to promote Treg cell proliferation and immune tolerance in glioma by binding to miR-302a. These findings may aid in the development of novel antitumor targets.
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Affiliation(s)
- Chuanhong Zhong
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China.,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China.,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China.,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China
| | - Bei Tao
- Rheumatism Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China
| | - Xianglong Li
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China.,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China.,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China.,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China
| | - Wei Xiang
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China.,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China.,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China.,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China
| | - Lilei Peng
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China.,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China.,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China.,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China
| | - Tangming Peng
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China.,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China.,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China.,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China
| | - Ligang Chen
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China.,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China.,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China.,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China
| | - Xiangguo Xia
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China.,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China.,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China.,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China
| | - Jian You
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China. .,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China. .,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China. .,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China.
| | - Xiaobo Yang
- Neurosurgery Department, the Affiliated Hospital of Southwest Medical University, 646000, Luzhou, P. R. China. .,Sichuan Clinical Research Center for Neurosurgery, 646000, Luzhou, P. R. China. .,Academician (Expert) Workstation of Sichuan Province, 646000, Luzhou, P. R. China. .,Laboratory of Neurological Disease and Brain Function, 646000, Luzhou, P. R. China.
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Zhong C, Tao B, Yang F, Xia K, Yang X, Chen L, Peng T, Xia X, Li X, Peng L. Histone demethylase JMJD1C promotes the polarization of M1 macrophages to prevent glioma by upregulating miR-302a. Clin Transl Med 2021; 11:e424. [PMID: 34586733 PMCID: PMC8473479 DOI: 10.1002/ctm2.424] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 04/26/2021] [Accepted: 05/01/2021] [Indexed: 12/23/2022] Open
Abstract
Glioma is regarded as an aggressive lethal primary brain tumor. Jumonji domain containing 1C (JMJD1C) is a H3K9 demethylase which participates in the progression of various tumors, but its specific function and underlying mechanism in glioma development remain undefined, which is the purpose of our work. We initially assessed JMJD1C expression in glioma tissues and cells using the assays of RT-qPCR and immunohistochemistry. Meanwhile, the H3K9 level at the microRNA (miR)-302a promoter region was measured by chromatin immunoprecipitation assay, while luciferase-based reporter assay was performed for validation of the binding affinity between miR-302a and methyltransferase-like 3 (METTL3). The effect of METTL3 on suppressor of cytokine signaling 2 (SOCS2) was subsequently analyzed by MeRIP-RT-qPCR. Finally, a xenograft tumor model was established in nude mice, followed by measurement of tumor-associated macrophages using flow cytometry. JMJD1C was poorly expressed in glioma tissues. Furthermore, JMJD1C increased miR-302a expression through promoting H3K9me1 demethylation at the miR-302a promoter region. miR-302a was identified to target METTL3, which could inhibit SOCS2 expression via m6A modification. JMJD1C promoted M1 macrophage polarization and suppressed the growth of glioma xenografts through the miR-302a/METTL3/SOCS2 axis both in vivo and in vitro. In conclusion, JMJD1C could enhance M1 macrophage polarization to inhibit the onset of glioma, bringing a new insight into the contribution of JMJD1C to the pathobiology of glioma, with possible implications for targeted therapeutic method.
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Affiliation(s)
- Chuanhong Zhong
- Department of Neurosurgerythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
- Sichuan Clinical Research Center for NeurosurgeryLuzhouP. R. China
| | - Bei Tao
- Department of Rheumatologythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
| | - Feilong Yang
- Neurosurgery Departmentthe Affiliated Santai Hospital of North Sichuan Medical CollegeMianyang621100P. R. China
| | - Kaiguo Xia
- Department of Neurosurgerythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
- Sichuan Clinical Research Center for NeurosurgeryLuzhouP. R. China
| | - Xiaobo Yang
- Department of Neurosurgerythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
- Sichuan Clinical Research Center for NeurosurgeryLuzhouP. R. China
| | - Ligang Chen
- Department of Neurosurgerythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
- Sichuan Clinical Research Center for NeurosurgeryLuzhouP. R. China
| | - Tangming Peng
- Department of Neurosurgerythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
- Sichuan Clinical Research Center for NeurosurgeryLuzhouP. R. China
| | - Xiangguo Xia
- Department of Neurosurgerythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
- Sichuan Clinical Research Center for NeurosurgeryLuzhouP. R. China
| | - Xianglong Li
- Department of Neurosurgerythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
- Sichuan Clinical Research Center for NeurosurgeryLuzhouP. R. China
| | - Lilei Peng
- Department of Neurosurgerythe Affiliated Hospital of Southwest Medical UniversityLuzhouP. R. China
- Sichuan Clinical Research Center for NeurosurgeryLuzhouP. R. China
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Guo J, Tang T, Li J, Yang Y, Quan Y, Zhang L, Huang W, Zhou M. Overexpression of MicroRNA 142-5p Suppresses the Progression of Cervical Cancer through Targeting Phosphoinositol-3-Kinase Adaptor Protein 1 Expression. Mol Cell Biol 2021; 41:e0036320. [PMID: 33288643 PMCID: PMC8316050 DOI: 10.1128/mcb.00363-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/22/2020] [Accepted: 12/02/2020] [Indexed: 12/15/2022] Open
Abstract
The aim of current study was to explore the mechanism of microRNA 142-5p (miR-142-5p) in cervical cancer through mediating the phosphoinositol-3-kinase adaptor protein 1 (PIK3AP1)/PI3K/AKT axis. To this end, reverse transcription-quantitative PCR (RT-qPCR) and Western blot analysis results revealed that miR-142-5p was poorly expressed, whereas PIK3AP1 was highly expressed, in cervical cancer tissues and cells. Furthermore, miR-142-5p was hypermethylated in cervical cancer, as reflected by methylation-specific PCR (MS-PCR) and chromatin immunoprecipitation (ChIP) assessment of enrichment of DNMT1/DNMT3a/DNMT3b in the promoter region of miR-142-5p. A target binding relationship between miR-142-5p and PIK3AP1 was established, showing that miR-142-5p targeted and inhibited the expression of PIK3AP1. Loss- and gain-of-function assays were conducted to determine the roles of miR-142-5p and PIK3AP1 in cervical cancer cells. CCK-8, flow cytometry, and Transwell assay results revealed that overexpression of miR-142-5p in cervical cancer cells downregulated PIK3AP1 and inhibited the PI3K/AKT signaling pathway, leading to reduced proliferation, migration, and invasion capacity of cervical cancer cells but enhanced apoptosis. Collectively, epigenetic regulation of miR-142-5p targeted PIK3AP1 to inactivate the PI3K/AKT signaling pathway, thus suppressing development of cervical cancer, which presents new targets for the treatment of cervical cancer.
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Affiliation(s)
- Junliang Guo
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Tian Tang
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Jinhong Li
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Yihong Yang
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Yi Quan
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Long Zhang
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Wei Huang
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, West China Second University Hospital, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, People’s Republic of China
| | - Muchuan Zhou
- Department of Anesthesia, Sichuan Integrative Medicine Hospital, Sichuan Academy of Chinese Medicine Science, Chengdu, People’s Republic of China
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P53-regulated miR-320a targets PDL1 and is downregulated in malignant mesothelioma. Cell Death Dis 2020; 11:748. [PMID: 32929059 PMCID: PMC7490273 DOI: 10.1038/s41419-020-02940-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 02/07/2023]
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive cancer, related to asbestos exposure, which has a dismal prognosis. MPM diagnosis is late and often challenging, suggesting the need to identify more reliable molecular biomarkers. Here, we set out to identify differentially expressed miRNAs in epithelioid, biphasic, and sarcomatoid MPMs versus normal mesothelium and explored specific miRNA contribution to mesothelial tumorigenesis. We screened an LNA™-based miRNA-microrray with 14 formalin-fixed paraffin-embedded (FFPE) MPMs and 6 normal controls. Through real-time qRT-PCR we extended the analysis of a miRNA subset and further investigated miR-320a role through state-of-the-art techniques. We identified 16 upregulated and 32 downregulated miRNAs in MPMs versus normal tissue, including the previously identified potential biomarkers miR-21, miR-126, miR-143, miR-145. We showed in an extended series that miR-145, miR-10b, and miR-320a levels can discriminate tumor versus controls with high specificity and sensitivity. We focused on miR-320a because other family members were found downregulated in MPMs. However, stable miR-320a ectopic expression induced higher proliferation and migration ability, whereas miR-320a silencing reduced these processes, not supporting a classic tumor-suppressor role in MPM cell lines. Among putative targets, we found that miR-320a binds the 3'-UTR of the immune inhibitory receptor ligand PDL1 and, consistently, miR-320a modulation affects PDL1 levels in MPM cells. Finally, we showed that p53 over-expression induces the upregulation of miR-320a, along with miR-200a and miR-34a, both known to target PDL1, and reduces PDL1 levels in MPM cells. Our data suggest that PDL1 expression might be due to a defective p53-regulated miRNA response, which could contribute to MPM immune evasion or tumorigenesis through tumor-intrinsic roles.
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Sun L, Fang Y, Wang X, Han Y, Du F, Li C, Hu H, Liu H, Liu Q, Wang J, Liang J, Chen P, Yang H, Nie Y, Wu K, Fan D, Coffey RJ, Lu Y, Zhao X, Wang X. miR-302a Inhibits Metastasis and Cetuximab Resistance in Colorectal Cancer by Targeting NFIB and CD44. Am J Cancer Res 2019; 9:8409-8425. [PMID: 31754405 PMCID: PMC6857048 DOI: 10.7150/thno.36605] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 09/10/2019] [Indexed: 12/24/2022] Open
Abstract
Introduction: Metastasis and drug resistance contribute substantially to the poor prognosis of colorectal cancer (CRC) patients. However, the epigenetic regulatory mechanisms by which CRC develops metastatic and drug-resistant characteristics remain unclear. This study aimed to investigate the role of miR-302a in the metastasis and molecular-targeted drug resistance of CRC and elucidate the underlying molecular mechanisms. Methods: miR-302a expression in CRC cell lines and patient tissue microarrays was analyzed by qPCR and fluorescence in situ hybridization. The roles of miR-302a in metastasis and cetuximab (CTX) resistance were evaluated both in vitro and in vivo. Bioinformatic prediction algorithms and luciferase reporter assays were performed to identify the miR-302a binding regions in the NFIB and CD44 3'-UTRs. A chromatin immunoprecipitation assay was performed to examine NFIB occupancy in the ITGA6 promoter region. Immunoblotting was performed to identify the EGFR-mediated pathways altered by miR-302a. Results: miR-302a expression was frequently reduced in CRC cells and tissues, especially in CTX-resistant cells and patient-derived xenografts. The decreased miR-302a levels correlated with poor overall CRC patient survival. miR-302a overexpression inhibited metastasis and restored CTX responsiveness in CRC cells, whereas miR-302a silencing exerted the opposite effects. NFIB and CD44 were identified as novel targets of miR-302a. miR-302a inhibited the metastasis-promoting effect of NFIB that physiologically activates ITGA6 transcription. miR-302a restored CTX responsiveness by suppressing CD44-induced cancer stem cell-like properties and EGFR-mediated MAPK and AKT signaling. These results are consistent with clinical observations indicating that miR-302a expression is inversely correlated with the expression of its targets in CRC specimens. Conclusions: Our findings show that miR-302a acts as a multifaceted regulator of CRC metastasis and CTX resistance by targeting NFIB and CD44, respectively. Our study implicates miR-302a as a candidate prognostic predictor and a therapeutic agent in CRC.
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Wang J, Yang Y, Cao Y, Tang X. miR‑342 inhibits glioma cell proliferation by targeting GPRC5A. Mol Med Rep 2019; 20:252-260. [PMID: 31115523 PMCID: PMC6579993 DOI: 10.3892/mmr.2019.10242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 04/09/2019] [Indexed: 11/26/2022] Open
Abstract
Accumulating evidence suggests that microRNAs (miRNAs) play a key role in the biological behaviors and progression of glioma. However, the function and bio-molecular mechanisms of miR-342 in glioma remain largely unclear. In the present study, reverse transcription quantitative-polymerase chain reaction and western blotting were performed to determine the mRNA and protein expression levels of the factors investigated. MTT assay was performed to examine the proliferation rates. Luciferase reporter assay was performed to test the binding between miRNA-342 and its putative target. Data indicated that miR-342 expression was markedly decreased in human glioma tissues and cell line U87, and reduced miR-342 expression significantly promoted cell proliferation. In order to explore the mechanisms, G-protein coupled receptor family C group 5 member A (GPRC5A) was identified as a target of miR-342 and depletion of GPRC5A suppressed cell proliferation. Our findings demonstrated that miR-342 regulates the cell proliferation of glioma by targeting GPRC5A, which indicates that miR-342 is a target of interest regarding the treatment of refractory glioma, and it may provide a promising prognostic and therapeutic strategy for glioma treatment.
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Affiliation(s)
- Jianjiao Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Yan Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yuandong Cao
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xinyu Tang
- Department of Radiation Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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Huo L, Wang B, Zheng M, Zhang Y, Xu J, Yang G, Guan Q. miR-128-3p inhibits glioma cell proliferation and differentiation by targeting NPTX1 through IRS-1/PI3K/AKT signaling pathway. Exp Ther Med 2019; 17:2921-2930. [PMID: 30906475 PMCID: PMC6425241 DOI: 10.3892/etm.2019.7284] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 11/03/2017] [Indexed: 12/23/2022] Open
Abstract
It has been reported that glioma has a higher morbidity and mortality than other types of malignant brain tumor. While glioma has been extensively researched, the exact molecular mechanisms of its genesis and progression have remained to be fully elucidated. In order to explore a novel glioma-associated pathway which may represent a therapeutic target, 61 pairs of tumor tissues and adjacent normal tissues of glioma patients were collected and subjected to reverse-transcription quantitative polymerase chain reaction analysis, indicating that the relative expression of microRNA (miR)-128-3p was significantly decreased in the tumor tissues. However, the expression of neuronal pentraxin 1 (NPTX1) was obviously elevated. Through a bioinformatics analysis using Targetscan and transfection experiments, it was confirmed that NPTX1 was targeted by miR-128-3p. In the U251 human glioma cell line, transfection with miR-128-3p mimics increased the levels of phosphorylated insulin receptor substrate 1 (p-IRS-1), phosphoinositide-3 kinase (PI3K) and p-AKT, as demonstrated by western blot analysis. In addition, the proliferation rate of the cells was notably decreased following transfection with miR-128-3p mimics. Conversely, transfection with miR-128-3p inhibitor significantly increased the levels of p-IRS-1, PI3K and p-AKT, accompanied by an elevated proliferation rate of the cells. Therefore, it was indicated that miR-128-3p could reversely regulate NPTX1 expression. After the expression of NPTX1 was inhibited with specific small interfering RNA, the levels of p-IRS-1, PI3K and p-AKT were obviously decreased, while the expression of miR-128-3p was not significantly changed. Overall, it was concluded that miR-128-3p suppresses glioma through the NPTX1/IRS-1/PI3K/AKT signaling pathway.
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Affiliation(s)
- Leiming Huo
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Bin Wang
- Department of Neurosurgery, The First People's Hospital of Longxi County, Dingxi, Gansu 730050, P.R. China
| | - Maohua Zheng
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yonghong Zhang
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jiguang Xu
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Gang Yang
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Quanlin Guan
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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Wang M, Lv G, Jiang C, Xie S, Wang G. miR-302a inhibits human HepG2 and SMMC-7721 cells proliferation and promotes apoptosis by targeting MAP3K2 and PBX3. Sci Rep 2019; 9:2032. [PMID: 30765768 PMCID: PMC6375964 DOI: 10.1038/s41598-018-38435-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 12/28/2018] [Indexed: 01/11/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common liver cancer and has a poor prognosis. miR-302a is an important regulator of tumor occurrence and deterioration, while MAP3K2 and PBX3 genes are involved in cancer cell proliferation and apoptosis. In this study, the expression of miR-302a and MAP3K2/PBX3 were evaluated by qPCR in liver cancer cell lines. Next, the target relationship between miR-302a and MAP3K2/PBX3 was verified using luciferase assays. Meanwhile, the expression correlation between miR-302a and target genes was analyzed in cancer tissue and para-cancerous tissue. In addition, an increased miR-302a level in HepG2 cells and SMMC-7721 cells were achieved through transfection with miR-302a mimics, and the effects on HepG2 cell and SMMC-7721 cell proliferation, apoptosis and MAPK pathways were determined using MTT, flow cytometry, qPCR and western blot assays. The results showed that liver cancer cell lines exhibited low miR-302a expression and MAP3K2 and PBX3 were confirmed to be the target genes of miR-302a. Meanwhile, the HE results showed that cells became enlarged with loose cytoplasm and formed balloon-like lesions in HCC specimens and we found a significant negative correlation between miR-302a and MAP3K2/PBX3 expression. In addition, treatment with miR-302a mimics inhibited HepG2 cells and SMMC-7721 cells proliferation and increased the apoptosis rate. Further research revealed that the MAPK key factors p-p38, p-ERK1/2 and p-JNK were significantly reduced in miR-302a transfected cells and MAP3K2/PBX3 silenced cells. Besides, MAP3K2 and PBX3 overexpression in miR-302a mimics-treated cells exerted the opposite effects. In conclusion, miR-302a inhibited proliferation and promoted apoptosis in human hepatoma cells by targeting MAP3K2 and PBX3.
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Affiliation(s)
- Meng Wang
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China
| | - Guoyue Lv
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China
| | - Chao Jiang
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China
| | - Shuli Xie
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China
| | - Guangyi Wang
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China.
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Luo Z, Yi Z, Ou Z, Han T, Wan T, Tang Y, Wang Z, Huang F. RELA/NEAT1/miR‐302a‐3p/RELA feedback loop modulates pancreatic ductal adenocarcinoma cell proliferation and migration. J Cell Physiol 2018; 234:3583-3597. [PMID: 30362505 DOI: 10.1002/jcp.27039] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 06/25/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Zhen Luo
- Department of General Surgery The Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Zhong‐Jie Yi
- Department of General Surgery The Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Zheng‐Lin Ou
- Department of General Surgery Xiangya Hospital, Central South University Changsha China
| | - Tong Han
- Department of pharmacy The Second Xiangya Hospital, Central South University Changsha Hunan China
| | - Tao Wan
- Department of General Surgery The Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Yong‐Chang Tang
- Department of General Surgery The Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Zhi‐Chao Wang
- Department of General Surgery The Third Xiangya Hospital, Central South University Changsha Hunan China
| | - Fei‐Zhou Huang
- Department of General Surgery The Third Xiangya Hospital, Central South University Changsha Hunan China
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Ma YS, Lv ZW, Yu F, Chang ZY, Cong XL, Zhong XM, Lu GX, Zhu J, Fu D. MicroRNA-302a/d inhibits the self-renewal capability and cell cycle entry of liver cancer stem cells by targeting the E2F7/AKT axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:252. [PMID: 30326936 PMCID: PMC6192354 DOI: 10.1186/s13046-018-0927-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/02/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND There is increasing evidence that liver cancer stem cells (LCSCs) contribute to hepatocellular carcinoma (HCC) initiation and progression. MicroRNA (miRNA) plays a significant functional role by directly regulating respective targets in LCSCs-triggered HCC, however, little is known about the function of the miRNA-302 family in LCSCs. METHODS MiRNAs microarray was used to detect the miRNAs involved in LCSCs maintenance and differentiation. Biological roles and the molecular mechanism of miRNA-302a/d and its target gene E2F7 were detected in HCC in vitro. The expression and correlation of miRNA-302a/d and E2F7 in HCC patients was evaluated by quantitative PCR and Kaplan-Meier survival analysis. RESULTS We found that the miRNA-302 family was downregulated during the spheroid formation of HCC cells and patients with lower miRNA-302a/d expression had shorter overall survival (OS) and progression-free survival (PFS). Moreover, E2F7 was confirmed to be directly targeted and inhibited by miRNA-302a/d. Furthermore, concomitant low expression of miRNA-302a/d and high expression of E2F7 correlated with a shorter median OS and PFS in HCC patients. Cellular functional analysis demonstrated that miRNA-302a/d negatively regulates self-renewal capability and cell cycle entry of liver cancer stem cells via suppression of its target gene E2F7 and its downstream AKT/β-catenin/CCND1 signaling pathway. CONCLUSIONS Our data provide the first evidence that E2F7 is a direct target of miRNA-302a/d and miRNA-302a/d inhibits the stemness of LCSCs and proliferation of HCC cells by targeting the E2F7/AKT/β-catenin/CCND1 signaling pathway.
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Affiliation(s)
- Yu-Shui Ma
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.,Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.,Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Zhong-Wei Lv
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Fei Yu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Zheng-Yan Chang
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Xian-Ling Cong
- Department of Biobank, China-Japan Union Hospital, Jilin University, Changchun, 130033, China
| | - Xiao-Ming Zhong
- Department of Radiology, Jiangxi Provincial Tumor Hospital, Nanchang, 330029, China
| | - Gai-Xia Lu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Jian Zhu
- Department of Digestive Surgery, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Da Fu
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
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Cunha PP, Costa PM, Morais CM, Lopes IR, Cardoso AM, Cardoso AL, Mano M, Jurado AS, Pedroso de Lima MC. High-throughput screening uncovers miRNAs enhancing glioblastoma cell susceptibility to tyrosine kinase inhibitors. Hum Mol Genet 2017; 26:4375-4387. [DOI: 10.1093/hmg/ddx323] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/09/2017] [Indexed: 02/07/2023] Open
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12
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Zhou F, Nie L, Feng D, Guo S, Luo R. MicroRNA-379 acts as a tumor suppressor in non-small cell lung cancer by targeting the IGF‑1R-mediated AKT and ERK pathways. Oncol Rep 2017; 38:1857-1866. [PMID: 28731178 DOI: 10.3892/or.2017.5835] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 07/07/2017] [Indexed: 12/12/2022] Open
Abstract
Lung cancer is one of the most common types of malignancy in humans and is a leading cause of cancer-related deaths among men and women worldwide. Aberrantly expressed microRNAs in non-small cell lung cancer (NSCLC) contribute to tumor occurrence and development as either tumor suppressors or promoters. MicroRNA-379 (miR‑379) is dysregulated in several types of human cancer. However, its expression pattern, role and underlying mechanism in NSCLC progression and metastasis are poorly understood. In this study, assay of reverse transcription-quantitative polymerase chain reaction showed that miR‑379 was downregulated in both NSCLC tissue and cell lines. Low miR‑379 expression in NSCLC tissues was significantly correlated with TNM stage and lymph node metastasis. In addition, functional experiments revealed that restoring the expression of miR‑379 inhibited cell proliferation, migration and invasion of NSCLC. The insulin-like growth factor receptor-1 (IGF‑1R) was identified as a direct target of miR‑379 in NSCLC. IGF‑1R was highly expressed in NSCLC tissues and inversely correlated with miR‑379 expression. Downregulation of IGF‑1R had tumor suppressive roles similar to that of miR‑379 overexpression on NSCLC cell proliferation, migration and invasion. Moreover, the upregulation of IGF‑1R effectively rescued the tumor suppressive roles induced by miR‑379 overexpression in NSCLC. The resumption of the expression of miR‑379 inhibited the activation of AKT and ERK signaling pathways in NSCLC. These findings suggested that miR‑379 acts as a tumor suppressor in NSCLC by directly targeting IGF‑1R and indirectly regulating AKT and ERK signaling pathways. miR‑379 provides novel therapeutic targets for the treatment of patients with this disease.
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Affiliation(s)
- Fangzheng Zhou
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441399, P.R. China
| | - Long Nie
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441399, P.R. China
| | - Dali Feng
- Department of Radiotherapy and Chemotherapy, The Second People's Hospital of Yichang, Yichang, Hubei 43000, P.R. China
| | - Siyan Guo
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441399, P.R. China
| | - Ren'na Luo
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei 441399, P.R. China
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