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Li Q, Luan Q, Zhu H, Zhao Y, Ji J, Wu F, Yan J. Circular RNA circ_0005774 contributes to proliferation and suppresses apoptosis of acute myeloid leukemia cells via circ_0005774/miR-192-5p/ULK1 ceRNA pathway. Biochem Biophys Res Commun 2021; 551:78-85. [PMID: 33735626 DOI: 10.1016/j.bbrc.2021.02.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 02/13/2021] [Indexed: 10/21/2022]
Abstract
Circular RNAs (circRNAs) and microRNAs (miRNAs) have been emerging as new players in acute myeloid leukemia (AML). Hsa_circ_0005774 (circ_0005774) is an upregulated circRNA in pediatric AML, while its role is uncovered. Thus, we intended to measure the function and mechanism of circ_0005774 in AML leukemogenesis. Real time-quantitative PCR revealed that circ_0005774 was highly expressed in blood of pediatric AML patients and AML cells (HL-60 and NB4), accompanied with downregulated miRNA-192-5p (miR-192-5p) which was a crucial tumor-associated and leukemia-related miRNA. Circ_0005774 was abundant in miRNA response element according to CSCD software, and miR-192-5p was identified as a target of circ_0005774, as evidenced by RNA immunoprecipitation and dual-luciferase reporter assays. Cell viability assay, flow cytometry and western blotting were performed to measure cell functions. Accordingly, blocking circ_0005774 and/or overexpressing miR-192-5p could enhance apoptosis rate of HL-60 and NB4 cells, but suppress cell viability and cell cycle entrance, accompanied with depression of proliferation markers including proliferating cell nuclear antigen (PCNA), CyclinD1 and B cell lymphoma 2 (Bcl-2). Meanwhile, depleting miR-192-5p counteracted the role of circ_0005774 knockdown in AML cells. Uncoordinated 51-like kinase 1 (ULK1) was previously demonstrated to be associated with diagnosis, prognosis and therapeutic strategy for AML, and restoring ULK1 could abrogate miR-192-5p overexpression-induced effects in HL-60 and NB4 cells. Notably, ULK1 was a downstream target of miR-192-5p and indirectly modulated by circ_0005774. In conclusion, circ_0005774 knockdown repressed cell proliferation and promoted apoptosis of AML cells partially through regulating miR-192-5p/ULK1 axis.
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Affiliation(s)
- Qinghua Li
- Department of Pediatric, Affiliated Hospital of Weifang Medical University, Weifang, 261041, Shandong, China
| | - Qingxia Luan
- Department of Pediatric, Affiliated Hospital of Weifang Medical University, Weifang, 261041, Shandong, China.
| | - Hailing Zhu
- Department of Pediatric, Affiliated Hospital of Weifang Medical University, Weifang, 261041, Shandong, China
| | - Yuehua Zhao
- Department of Pediatric, Affiliated Hospital of Weifang Medical University, Weifang, 261041, Shandong, China
| | - Jiafen Ji
- Department of Pediatric, Affiliated Hospital of Weifang Medical University, Weifang, 261041, Shandong, China
| | - Fan Wu
- Department of Pediatric, Affiliated Hospital of Weifang Medical University, Weifang, 261041, Shandong, China
| | - Jingfen Yan
- Department of Pediatric, Affiliated Hospital of Weifang Medical University, Weifang, 261041, Shandong, China
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Kang J, Yao P, Tang Q, Wang Y, Zhou Y, Huang J. Systematic Analysis of Competing Endogenous RNA Networks in Diffuse Large B-Cell Lymphoma and Hodgkin's Lymphoma. Front Genet 2020; 11:586688. [PMID: 33193722 PMCID: PMC7554339 DOI: 10.3389/fgene.2020.586688] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 08/28/2020] [Indexed: 12/19/2022] Open
Abstract
Lymphoma is a systemic malignancy, originating from the lymphatic system, which accounts for 3 to 4% of all tumors. There are two major subtypes of lymphoma, namely, diffuse large B-cell lymphoma (DLBCL) and Hodgkin’s lymphoma (HL). Elucidation of the pathogenesis of these two lymphoma types is crucial for the identification of potential therapeutic targets. Compared with the corresponding knowledge of other diseases, the understanding of the regulatory networks involved in DLBCL and HL is relatively deficient. To address this, we comprehensively analyzed the mRNAs, lncRNAs, and miRNAs that were differentially expressed between normal and tumor samples of DLBCL and HL. In addition, functional enrichment analysis of the differentially expressed mRNAs was performed. We constructed two specific ceRNA networks of DLBCL and HL. The pathways enriched by dysregulated mRNAs in DLBCL and HL were mainly involved in immune responses, transcription process, and metabolism process. The ceRNA network analysis revealed that 45 ceRNAs were shared between the two ceRNA networks, including five pivotal lncRNAs (MALAT1, CTBP1-AS, THUMPD3-AS, PSMA3-AS1, and NUTM2A-AS1). In addition, we proposed a DLBCL survival risk model based on a DLBCL-specific network constructed by Lasso regression analysis. The model, which is based on eight mRNAs, exhibited excellent performance in regard to predicting outcomes in DLBCL patients, with a p value of 0.0017 and AUC of 0.9783. In summary, although the molecular mechanisms underlying tumorigenesis in DLBCL and HL were quite different, the same pivotal lncRNAs acted as key regulators. Our findings identify novel potential prognostic and therapeutic targets for DLBCL and HL.
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Affiliation(s)
- Juanjuan Kang
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China.,Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, China
| | - Pengcheng Yao
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Qiang Tang
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ying Wang
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuwei Zhou
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Jian Huang
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
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Ma DB, Qin MM, Shi L, Ding XM. MicroRNA-6077 enhances the sensitivity of patients-derived lung adenocarcinoma cells to anlotinib by repressing the activation of glucose transporter 1 pathway. Cell Signal 2019; 64:109391. [PMID: 31421224 DOI: 10.1016/j.cellsig.2019.109391] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 08/10/2019] [Accepted: 08/13/2019] [Indexed: 02/07/2023]
Abstract
Anlotinib is a novel molecular targeted agent targeting the vascular endothelial growth factor receptor, which differs from the other currently available non-small cell lung cancer (NSCLC) molecular targeted drugs targeting this receptor. Although the application of anlotinib may bring new hope for patients with advanced NSCLC, the cost of treatment is high. The results of this study showed that microRNA-6077 (miR-6077) represses the expression of GLUT1 (glucose transporter 1) and enhances the sensitivity of patient-derived lung adenocarcinoma (AC) cells to anlotinib. The miR-6077, which potentially binds to the 3'untranslated region of GLUT1, was identified and screened by miRDB, an online tool; sequences of miR-6077 were prepared as lentivirus particles. A549 cells (a lung adenocarcinoma cell line) and five patient-derived AC cell lines were infected with control miRNA or miR-6077, and subsequently treated with the indicated concentration of anlotinib. The expression of proteins, such as GLUT1, was determined by western blotting. The antitumor effect of anlotinib was identified through in-vitro (e.g., MTT) or in-vivo methods (e.g., subcutaneous tumor model). Overexpression of miR-6077 repressed the expression of GLUT1 and decreased the glucose uptake, lactate production, or ATP generation in AC cells. In addition, MiR-6077 may enhance the antitumor effect of anlotinib on A549 or patient-derived AC cell lines. Therefore, our results indicated that miR-6077 represses the expression of GLUT1 and enhances the sensitivity of patients-derived lung AC cells to anlotinib.
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Affiliation(s)
- De-Bin Ma
- Department of Respiratory and Critical Care Medicine, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Meng-Meng Qin
- Department of Respiratory and Critical Care Medicine, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Liang Shi
- Department of Respiratory and Critical Care Medicine, General Hospital of Northern Theater Command, Shenyang 110016, China.
| | - Xin-Min Ding
- Department of Respiratory and Critical Care Medicine, Beijing Shijitan Hospital affiliated to Capital Medical University, Beijing 100038, China.
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Wang JD, Zhou HS, Tu XX, He Y, Liu QF, Liu Q, Long ZJ. Prediction of competing endogenous RNA coexpression network as prognostic markers in AML. Aging (Albany NY) 2019; 11:3333-3347. [PMID: 31164492 PMCID: PMC6555472 DOI: 10.18632/aging.101985] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 05/19/2019] [Indexed: 12/16/2022]
Abstract
Recently, competing endogenous RNAs (ceRNAs) hypothesis has gained a great interest in the study of molecular biological mechanisms of cancer occurrence and progression. However, studies on leukemia are limited, and there is still a lack of comprehensive analysis of lncRNA-miRNA-mRNA ceRNA regulatory network of AML based on high-throughput sequencing and large-scale sample size. We obtained RNA-Seq data and compared the expression profiles between 407 normal whole blood (GTEx) and 151 bone marrows of AML (TCGA). The similarity between two sets of genes with trait in the network was analyzed by weighted correlation network analysis (WGCNA). MiRcode, starBase, miRTarBase, miRDB and TargetScan was used to predict interactions between lncRNAs, miRNAs and target mRNAs. At last, we identified 108 lncRNAs, 10 miRNAs and 8 mRNAs to construct a lncRNA-miRNA-mRNA ceRNA network, which might act as prognostic biomarkers of AML. Among the network, a survival model with 8 target mRNAs (HOXA9+INSR+KRIT1+MYB+SPRY2+UBE2V1+WEE1+ZNF711) was set up by univariate and multivariate cox proportional hazard regression analysis, of which the AUC was 0.831, indicating its sensitivity and specificity in AML prognostic prediction. CeRNA networks could provide further insight into the study on gene regulation and AML prognosis.
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Affiliation(s)
- Jun-Dan Wang
- Department of Hematology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Institute of Hematology, Sun Yat-sen University, Guangzhou 510630, China
- Equal contribution
| | - Hong-Sheng Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510000, China
- Equal contribution
| | - Xi-Xiang Tu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510000, China
| | - Yi He
- Department of Hematology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Institute of Hematology, Sun Yat-sen University, Guangzhou 510630, China
| | - Qi-Fa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510000, China
| | - Quentin Liu
- Department of Hematology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Institute of Hematology, Sun Yat-sen University, Guangzhou 510630, China
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116000, China
| | - Zi-Jie Long
- Department of Hematology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
- Institute of Hematology, Sun Yat-sen University, Guangzhou 510630, China
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Meng D, Lei M, Han Y, Zhao D, Zhang X, Yang Y, Liu R. MicroRNA-645 targets urokinase plasminogen activator and decreases the invasive growth of MDA-MB-231 triple-negative breast cancer cells. Onco Targets Ther 2018; 11:7733-7743. [PMID: 30464522 PMCID: PMC6223385 DOI: 10.2147/ott.s187221] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background Urokinase plasminogen activator (uPA) promotes the in vivo invasive growth of HCC cells by cleaving and activating matrix metalloproteinases (MMPs) to induce the destruction of the extracellular matrix of triple-negative breast cancer (TNBC) cells. The identification of microRNAs that target uPA and decrease uPA expression would be useful for attenuating the in vivo invasive growth of TNBC cells. Materials and methods MicroRNA-645 (miR-645) was identified using an online tool (miRDB) as potentially targeting uPA; miR-645 inhibition of uPA was confirmed by western blot experiments. The effects of miR-645 on the in vivo invasive growth of TNBC cells were examined using an intrahepatic tumor model in nude mice, and the miR-645 mechanism of action was explored with MMP cleaving experiments. Results Through virtual screening, we discovered that miR-645 potentially targeted the uPA 3′ untranslated region. This targeting was confirmed by western blot experiments and miR-645 lentiviral particle (LV-645) transduction that inhibited uPA expression in MDA-MB-231 TNBC cells. The LV-645 inhibition of uPA led to the decreased invasive growth of TNBC cells in nude mice. The mechanism data indicated that the uPA inhibition resulted in a decreased cleaving of the pro-MMP-9 protein. Conclusion Targeting uPA with miR-645 decreased the in vivo invasive growth of TNBC cells. These results suggest that miR-645 may represent a promising treatment strategy for TNBC.
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Affiliation(s)
- Du Meng
- Department of Radio Oncology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an 710061, Shaanxi Province, People's Republic of China,
| | - Ming Lei
- Department of Cardiothoracic Surgery, The NO 3 Hospital of Xi'an, Xi'an 710000, Shaanxi Province, People's Republic of China
| | - Yaxuan Han
- Department of Oncology, The Xi'an Chest Hospital, Xi'an 710000, Shaanxi Province, People's Republic of China
| | - Dongli Zhao
- Department of Cardiothoracic Surgery, The NO 3 Hospital of Xi'an, Xi'an 710000, Shaanxi Province, People's Republic of China
| | - Xiaozhi Zhang
- Department of Radio Oncology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an 710061, Shaanxi Province, People's Republic of China,
| | - Yunyi Yang
- Department of Radio Oncology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an 710061, Shaanxi Province, People's Republic of China,
| | - Rui Liu
- Department of Radio Oncology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an 710061, Shaanxi Province, People's Republic of China,
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