1
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Wang Y, Li T, Yang L, Zhang X, Wang X, Su X, Ji C, Wang Z. Cancer-associated fibroblast-released extracellular vesicles carrying miR-199a-5p induces the progression of gastric cancer through regulation of FKBP5-mediated AKT1/mTORC1 signaling pathway. Cell Cycle 2022; 21:2590-2601. [PMID: 36005478 PMCID: PMC9704384 DOI: 10.1080/15384101.2022.2105092] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 01/24/2022] [Accepted: 07/11/2022] [Indexed: 01/09/2023] Open
Abstract
Accumulating evidence has unfolded the significance of extracellular vesicles (EVs) in diseases and cancers. Here, we attempted to discuss the role of cancer-associated fibroblasts (CAFs)-derived EVs containing miR-199a-5p in gastric tumorigenesis. Upregulated miR-199a-5p was first identified in cancer cells. Then, we selected CAFs for isolation of EVs which were co-cultured with AGS cells. We observed successful delivery of miR-199a-5p via CAF-derived EVs. Besides, miR-199a-5p promoted malignant properties of AGS cells. Moreover, miR-199a-5p downregulated FKBP5, leading to upregulated phosphorylation level of AKT1, which promoted the malignant phenotypes of AGS cells by activating mammalian target of rapamycin complex 1(mTORC1). Exosomal miR-199a-5p from CAFs promoted gastric tumorigenesis in vivo. Our findings point toward the critical role of CAFs-derived EVs carrying miR-199a-5p in gastric cancer progression.
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Affiliation(s)
- Yan Wang
- Department of Medical Oncology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
- Department of Medical Oncology, Tumor Hospital Affiliated to Nantong University & Nantong Tumor Hospital, Nantong, P.R. China
| | - Tao Li
- Department of Medical Oncology, Tumor Hospital Affiliated to Nantong University & Nantong Tumor Hospital, Nantong, P.R. China
| | - Lei Yang
- Department of Medical Oncology, Tumor Hospital Affiliated to Nantong University & Nantong Tumor Hospital, Nantong, P.R. China
| | - Xunlei Zhang
- Department of Medical Oncology, Tumor Hospital Affiliated to Nantong University & Nantong Tumor Hospital, Nantong, P.R. China
| | - Xiaoli Wang
- Department of Medical Oncology, Tumor Hospital Affiliated to Nantong University & Nantong Tumor Hospital, Nantong, P.R. China
| | - Xiaoqin Su
- Department of Medical Oncology, Tumor Hospital Affiliated to Nantong University & Nantong Tumor Hospital, Nantong, P.R. China
| | - Congfei Ji
- Department of Medical Oncology, Tumor Hospital Affiliated to Nantong University & Nantong Tumor Hospital, Nantong, P.R. China
| | - Zhenxin Wang
- Department of Medical Oncology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
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2
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Pan-Cancer Analyses Reveal the Immunotherapeutic Value of Klotho. Heliyon 2022; 8:e11510. [DOI: 10.1016/j.heliyon.2022.e11510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 07/07/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022] Open
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3
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Wu Z, Liu P, Zhang G. Identification of circRNA-miRNA-Immune-Related mRNA Regulatory Network in Gastric Cancer. Front Oncol 2022; 12:816884. [PMID: 35280778 PMCID: PMC8907717 DOI: 10.3389/fonc.2022.816884] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/24/2022] [Indexed: 12/31/2022] Open
Abstract
The pathogenesis of gastric cancer (GC) is still not fully understood. We aimed to find the potential regulatory network for ceRNA (circRNA–miRNA–immune-related mRNA) to uncover the pathological molecular mechanisms of GC. The expression profiles of circRNA, miRNA, and mRNA in gastric tissue from GC patients were downloaded from the Gene Expression Omnibus (GEO) datasets. Differentially expressed circRNAs, miRNAs, and immune-related mRNAs were filtered, followed by the construction of the ceRNA (circRNA–miRNA–immune-related mRNA) network. Functional annotation and protein–protein interaction (PPI) analysis of immune-related mRNAs in the network were performed. Expression validation of circRNAs and immune-related mRNAs was performed in the new GEO and TCGA datasets and in-vitro experiment. A total of 144 differentially expressed circRNAs, 216 differentially expressed miRNAs, and 2,392 differentially expressed mRNAs were identified in GC. Some regulatory pairs of circRNA–miRNA–immune-related mRNA were obtained, including hsa_circ_0050102–hsa-miR-4537–NRAS–Tgd cells, hsa_circ_0001013–hsa-miR-485-3p–MAP2K1–Tgd cells, hsa_circ_0003763–hsa-miR-145-5p–FGF10–StromaScore, hsa_circ_0001789–hsa-miR-1269b–MET–adipocytes, hsa_circ_0040573–hsa-miR-3686–RAC1–Tgd cells, and hsa_circ_0006089–hsa-miR-5584-3p–LYN–neurons. Interestingly, FGF10, MET, NRAS, RAC1, MAP2K1, and LYN had potential diagnostic value for GC patients. In the KEGG analysis, some signaling pathways were identified, such as Rap1 and Ras signaling pathways (involved NRAS and FGF10), Fc gamma R-mediated phagocytosis and cAMP signaling pathway (involved RAC1), proteoglycans in cancer (involved MET), T-cell receptor signaling pathway (involved MAP2K1), and chemokine signaling pathway (involved LYN). The expression validation of hsa_circ_0003763, hsa_circ_0004928, hsa_circ_0040573, FGF10, MET, NRAS, RAC1, MAP2K1, and LYN was consistent with the integrated analysis. In conclusion, the identified ceRNA (circRNA–miRNA–immune-related mRNA) regulatory network may be associated with the development of GC.
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Affiliation(s)
- Zhenhai Wu
- Department of Oncology, Zhejiang Hospital, Hangzhou, China
| | - Pengyuan Liu
- The Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ganlu Zhang
- Department of Oncology, Zhejiang Hospital, Hangzhou, China
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4
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Investigation of the Role of Induced Overexpression of the Isolated Secreted Klotho on the A-172 Human Glioblastoma Cells. J Mol Neurosci 2022; 72:401-409. [PMID: 35112226 DOI: 10.1007/s12031-021-01960-1] [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: 06/15/2021] [Accepted: 12/19/2021] [Indexed: 10/19/2022]
Abstract
Klotho gene, identified in 1997 as an anti-aging gene, can manufacture two protein products: transmembrane and secreted forms. The later research revealed the involvement of klotho in carcinogenesis. However, little is known about the action of different Klotho forms on antitumor effects is still. The purpose of this article is to evaluate the effect of isolated secreted Klotho overexpression on the growth features of human glioblastoma cell line A-172.A-172 was transfected by a plasmid vector incorporating secreted Klotho sequence by the liposomal method. Overexpression assay was carried out quantitatively on both mRNA and protein using RT-qPCR and ELISA, correspondingly. It was shown that the relative expression of secreted Klotho in the experimental group was significantly higher than in the untransfected group by both methods (p < 0.001). At the same time, the growth curves and MTT proliferation assay demonstrated significantly decreased values under induced overexpression (p < 0.01). The increased amount of cells with activated caspases and annexin V (p < 0.001) corresponded with the expression of secreted Klotho. This mechanism, as suggested, maybe causative of the observed effects.
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Liu YJ, Yin SY, Zeng SH, Hu YD, Wang MQ, Huang P, Li JP. Prognostic Value of LHFPL Tetraspan Subfamily Member 6 (LHFPL6) in Gastric Cancer: A Study Based on Bioinformatics Analysis and Experimental Validation. Pharmgenomics Pers Med 2021; 14:1483-1504. [PMID: 34848995 PMCID: PMC8612673 DOI: 10.2147/pgpm.s332345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/26/2021] [Indexed: 12/17/2022] Open
Abstract
Purpose The identification of biomarkers and effective therapeutic targets for gastric cancer (GC), the most common cause of cancer-related deaths around the world, is currently a major focus in research. Here, we examined the utility of LHFPL6 as a prognostic biomarker and therapeutic target for GC. Methods We explored the clinical relevance, function, and molecular role of LHFPL6 in GC using the MethSurv, cBioPortal, TIMER, Gene Expression Profiling Interactive Analysis, ONCOMINE, MEXPRESS, and EWAS Atlas databases. The GSE118919, GSE29272, and GSE13861 datasets were used for differential expression analysis. Using The Cancer Genome Atlas, we developed a Cox regression model and assessed the clinical significance of LHFPLs. In addition, we used the “CIBERSORT” algorithm to make reliable immune infiltration estimations. Western blot and immunohistochemistry were used to examine protein expression. Cell migration and invasion were assessed using transwell experiments. THP-1-derived macrophages and GC cells were co-cultured in order to model tumor–macrophage interactions in vitro. The levels of CD206 and CD163 were measured using immunofluorescence assays. The results were visualized with the “ggplot2” and “circlize” packages. Results Our results showed that in GC, LHFPL6 overexpression was significantly associated with a poor prognosis. Our findings also suggested that LHFPL6 may be involved in the activation of the epithelial–mesenchymal transition. Furthermore, LHFPL6 expression showed a positive correlation with the abundance of M2 macrophages, which are potent immunosuppressors. Conclusion LHFPL6 could be a prognostic biomarker and therapeutic target for GC.
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Affiliation(s)
- Yuan-Jie Liu
- Department of Oncology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu, 215600, People's Republic of China.,Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu, 210029, People's Republic of China.,No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Sheng-Yan Yin
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu, 210029, People's Republic of China.,No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Shu-Hong Zeng
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu, 210029, People's Republic of China.,No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Yi-Dou Hu
- Department of Oncology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu, 215600, People's Republic of China
| | - Meng-Qi Wang
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu, 210029, People's Republic of China.,No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Pan Huang
- Department of Oncology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu, 215600, People's Republic of China
| | - Jie-Pin Li
- Department of Oncology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, Jiangsu, 215600, People's Republic of China.,Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu, 210029, People's Republic of China.,No. 1 Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, People's Republic of China
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6
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Chen Z, Zhang W, Wu M, Huang H, Zou L, Luo Q. Pathogenic mechanisms of preeclampsia with severe features implied by the plasma exosomal mirna profile. Bioengineered 2021; 12:9140-9149. [PMID: 34696680 PMCID: PMC8810006 DOI: 10.1080/21655979.2021.1993717] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 12/29/2022] Open
Abstract
Preeclampsia is a complication of pregnancy characterized by high blood pressure and organ damage after 20 gestational weeks. It is associated with high maternal and fetal morbidity and mortality. However, at present, there is no effective prevention or treatment for this condition. Previous studies have revealed that plasma exosomal mirnas from pregnant women with preeclampsia could serve as biomarkers of pathogenic factors. However, the roles of plasma exosomal mirnas in preeclampsia with severe features (sPE), which is associated with poorer pregnancy outcomes, remain unknown. Thus, the aims of this study were to characterize plasma exosomal miRNAs in sPE and explore the related pathogenic mechanisms using bioinformatic analysis. Plasma exosomes were isolated using a mirVana RNA isolation kit. the exosomal miRNAs were detected using high-throughput sequencing and the mirnas related to Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways and gene ontology (GO) terms were analyzed using the clusterprofiler package of R. Fifteen miRNAs exhibited increased expression and fourteen miRNAs exhibited reduced expression in plasma exosomes from women with sPE as compared to normal pregnant women. Further, gene set enrichment analysis revealed that the differentially expressed plasma exosomal miRNAs were related to the stress response and cell junction regulation, among others. In summary, this study is the first to identify the differentially expressed plasma exosomal miRNAs in sPE. These findings highlight promising pathogenesis mechanisms underlying preeclampsia.
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Affiliation(s)
- Zhirui Chen
- Department of Obstetrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wen Zhang
- Department of Obstetrics, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Mengying Wu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Haixia Huang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Li Zou
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qingqing Luo
- Department of Obstetrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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7
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Construction of miRNA-mRNA-TF Regulatory Network for Diagnosis of Gastric Cancer. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9121478. [PMID: 34840985 PMCID: PMC8616677 DOI: 10.1155/2021/9121478] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 10/27/2021] [Indexed: 12/30/2022]
Abstract
Gastric cancer (GC), as an epidemic cancer worldwide, has more than 1 million new cases and an estimated 769,000 deaths worldwide in 2020, ranking fifth and fourth in global morbidity and mortality. In mammals, both miRNAs and transcription factors (TFs) play a partial role in gene expression regulation. The mRNA expression profile and miRNA expression profile of GEO database were screened by GEO2R for differentially expressed genes (DEGs) and differentially expressed miRNAs (DEMs). Then, DAVID annotated the functions of DEGs to understand the functions played in biological processes. The prediction of potential target genes of miRNA and key TFs of mRNA was performed by mipathDB V2.0 and CHEA3, respectively, and the gene list comparison was performed to look for overlapping genes coregulated by key TFs and DEMs. Finally, the obtained miRNAs, TF, and overlapping genes were used to construct the miRNA-mRNA-TF regulatory network, which was verified by RT-qPCR. 76 upregulated DEGs, 199 downregulated DEGs, and 3 upregulated miRNAs (miR-199a-3p/miR-199b-3p, miR-125b-5p, and miR-199a-5p) were identified from the expression profiles of mRNA (GSE26899, GSE29998, GSE51575, and GSE13911) and miRNA (GSE93415), respectively. Through database prediction and gene list comparison, it was found that among the 199 downregulated DEGs, 61, 71, and 69 genes were the potential targets of miR-199a-3p/miR-199b-3p, miR-125b-5p, and miR-199a-5p, respectively. 199 downregulated DEGs were used as the gene list for the prediction of key TFs, and the results showed that RFX6 ranked the highest. The potential target overlap genes of miR-199a-3p/miR-199b-3p, miR-125b-5p, and miR-199a-5p were 4 genes (SH3GL2, ATP4B, CTSE, and SORBS2), 7 genes (SLC7A8, RNASE4, ESRRG, PGC, MUC6, Fam3B, and FMO5), and 6 genes (CHGA, PDK4, TMPRSS2, CLIC6, GPX3, and PSCA), respectively. Finally, we constructed a miRNA-mRNA-TF regulatory network based on the above 17 mRNAs, 3 miRNAs, and 1 TF and verified by RT-qPCR and western blot results that the expression of RFX6 was downregulated in GC tissues. These identified miRNAs, mRNAs, and TF have a certain reference value for further exploration of the regulatory mechanism of GC.
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8
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Wang J, Zhang M, Hu X, She J, Sun R, Qin S, Li D. miRNA-194 predicts favorable prognosis in gastric cancer and inhibits gastric cancer cell growth by targeting CCND1. FEBS Open Bio 2021; 11:1814-1826. [PMID: 33605558 PMCID: PMC8255842 DOI: 10.1002/2211-5463.13125] [Citation(s) in RCA: 21] [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: 10/08/2020] [Revised: 01/13/2021] [Accepted: 02/18/2021] [Indexed: 11/23/2022] Open
Abstract
MicroRNAs (MiRNAs) play critical roles in regulating target gene expression and multiple cellular processes in human cancer malignant progression. However, the function of miR-194 in gastric cancer (GC) remains unclear and controversial. In this study, we identified a series of miRNAs that can serve as prognostic biomarkers for GC by analysis of miRNA expression using The Cancer Genome Atlas data. Among them, miR-100, miR-125b, miR-199a, and miR-194 were the four most promising prognostic biomarkers in GC due to their significant associations with various clinical characteristics of patients. miR-100, miR-125b, and miR-199a predicted poor prognosis in GC, while miR-194 predicted favorable prognosis in GC. We also provide the first comprehensive transcriptome analysis of miR-194 in GC. Our data suggest that miR-194 tends to regulate target genes by binding to their 3' UTRs in a 7-mer-A1, 7-mer-m8, or 8-mer manner. KEGG pathway analysis showed that the cell cycle was one of the pathways most affected by miR-194 in GC. Moreover, CCND1 was shown to be a novel target gene of miR-194 in GC. Additionally, downregulation of CCND1 by miR-194 in GC further led to cell growth inhibition and cell cycle arrest. In conclusion, miR-100, miR-125b, miR-199a, and miR-194 may have potential as prognostic and diagnostic biomarkers for GC. miR-194 suppresses GC cell growth mainly through targeting CCND1 and induction of cell cycle arrest.
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Affiliation(s)
- Jingjie Wang
- Hubei Key Laboratory of Embryonic Stem Cell ResearchSchool of Basic Medical SciencesHubei University of MedicineShiyanChina
- Laboratory of Tumor BiologySchool of Biomedical EngineeringHubei University of MedicineShiyanChina
| | - Meixin Zhang
- Hubei Key Laboratory of Embryonic Stem Cell ResearchSchool of Basic Medical SciencesHubei University of MedicineShiyanChina
| | - Xinhui Hu
- Hubei Key Laboratory of Embryonic Stem Cell ResearchSchool of Basic Medical SciencesHubei University of MedicineShiyanChina
| | - Jiajun She
- Hubei Key Laboratory of Embryonic Stem Cell ResearchSchool of Basic Medical SciencesHubei University of MedicineShiyanChina
| | - Ruonan Sun
- Hubei Key Laboratory of Embryonic Stem Cell ResearchSchool of Basic Medical SciencesHubei University of MedicineShiyanChina
| | - Shanshan Qin
- Hubei Key Laboratory of Embryonic Stem Cell ResearchSchool of Basic Medical SciencesHubei University of MedicineShiyanChina
- Laboratory of Tumor BiologySchool of Biomedical EngineeringHubei University of MedicineShiyanChina
| | - Dandan Li
- Hubei Key Laboratory of Embryonic Stem Cell ResearchSchool of Basic Medical SciencesHubei University of MedicineShiyanChina
- Laboratory of Tumor BiologySchool of Biomedical EngineeringHubei University of MedicineShiyanChina
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9
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Wang Y, Wang H, Zheng R, Wu P, Sun Z, Chen J, Zhang L, Zhang C, Qian H, Jiang J, Xu W. Circular RNA ITCH suppresses metastasis of gastric cancer via regulating miR-199a-5p/Klotho axis. Cell Cycle 2021; 20:522-536. [PMID: 33499704 DOI: 10.1080/15384101.2021.1878327] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Circular RNAs (circRNAs) are considered as a new regulatory factor in growth, metastasis and therapeutic resistance of human cancers. But the clinical significance and underlying mechanism of circular RNA ITCH (circ-ITCH) in gastric cancer (GC) remain unknown. In the present study, we found that circ-ITCH was down-regulated in GC cell lines, GC tissues and their serum-derived exosomes. The level of circ-ITCH was related to invasion depth. Functional assays showed that circ-ITCH overexpression inhibited the proliferation, migration, invasion and epithelial mesenchymal transition (EMT) of GC cells, whereas circ-ITCH knockdown appeared an opposite effect. Bioinformatic analysis and luciferase reporter assay confirmed that circ-ITCH acted as miR-199a-5p sponge and increased the level of Klotho. The expression level of miR-199-5p was up-regulated in GC tissues and negatively correlated with that of circ-ITCH. MiR-199a-5p mimics reversed the effects on inhibiting metastasis induced by circ-ITCH overexpression and decreased the level of Klotho in GC cells. Our findings indicate that circ-ITCH suppresses metastasis of GC by acting as the sponge of miR-199a-5p and increasing Klotho expression, which serves as a potential biomarker and targets for the diagnosis and therapy of GC.Abbreviations: CircRNAs: circular RNAs; GC: gastric cancer; circ-ITCH: circular RNA Itchy E3 ubiquitin protein ligase; ceRNA: competitive endogenous RNA; EMT: Epithelial-mesenchymal transition; siRNA: Small interfering RNA; TEM: transmission electron microscope; NTA: nanoparticle tracking analysis.
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Affiliation(s)
- Yan Wang
- Aoyang Institute of Cancer, Jiangsu University, Suzhou, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Huiting Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ruiqi Zheng
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Peipei Wu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zixuan Sun
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jingyan Chen
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Leilei Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Chenxiao Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jiajia Jiang
- Aoyang Institute of Cancer, Jiangsu University, Suzhou, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Wenrong Xu
- Aoyang Institute of Cancer, Jiangsu University, Suzhou, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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10
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Chen W, Zhang K, Yang Y, Guo Z, Wang X, Teng B, Zhao Q, Huang C, Qiu Z. MEF2A-mediated lncRNA HCP5 Inhibits Gastric Cancer Progression via MiR-106b-5p/p21 Axis. Int J Biol Sci 2021; 17:623-634. [PMID: 33613117 PMCID: PMC7893594 DOI: 10.7150/ijbs.55020] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/31/2020] [Indexed: 12/16/2022] Open
Abstract
Background: Long non-coding RNAs (lncRNAs) are deemed to be relevant to the tumorigenesis and development of a variety of tumors, containing gastric cancer (GC). The purpose of our investigations is to explore the character of HCP5 in GC. Methods: HCP5 expression was detected by quantitative real-time polymerase chain reaction (qRT-PCR) in 62 matched GC tissues and corresponding para-carcinoma tissues. In vitro and in vivo functional assays were subjected to verify the biological effects of HCP5 after alteration of HCP5. Chromatin immunoprecipitation assay (CHIP) assays were conducted to confirm that myocyte enhancer factor 2A (MEF2A) could bind to HCP5 promoter regions and thereby induce HCP5 expression. Analysis of the latent binding of miR-106b-5p to HCP5 and p21 was made by bioinformatics prediction and luciferase reporter assays. Results: Significant downregulation of HCP5 was detected in GC tissues. Negative correlation was determined between HCP5 expression level and tumor size and overall survival in GC patients. HCP5 depletion had a facilitating impact on proliferation, migration and invasion of GC cells. Consistently, overexpression of HCP5 came into an opposite effect. Moreover, we demonstrated that MEF2A could combine with the promoter region of HCP5 and thereby induce HCP5 transcription. Luciferase reporter assays revealed that HCP5 could compete with miR-106b-5p as a competing endogenous RNA (ceRNA) and upregulated p21 expression in GC. Conclusions: MEF2A-mediated HCP5 could exert an anti-tumor effect among the development of GC via miR-106b-5p/p21 axis, which provides a novel target for GC therapy.
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Affiliation(s)
- Weiwei Chen
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Road, Shanghai, 201600, China
| | - Kundong Zhang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Road, Shanghai, 201600, China
| | - Yuhan Yang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Road, Shanghai, 201600, China
| | - Zengya Guo
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Road, Shanghai, 201600, China
| | - Xiaofeng Wang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Road, Shanghai, 201600, China
| | - Buwei Teng
- Lianyungang Clinical College of Nanjing Medical University/The First People's Hospital of Lianyungang, 6 Zhenhua East Road, Haizhou District, City of Lianyungang, Jiangsu Province, 222061, China
| | - Qian Zhao
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of National Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chen Huang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Road, Shanghai, 201600, China
| | - Zhengjun Qiu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, 100 Haining Road, Shanghai, 201600, China
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11
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Ewendt F, Feger M, Föller M. Role of Fibroblast Growth Factor 23 (FGF23) and αKlotho in Cancer. Front Cell Dev Biol 2021; 8:601006. [PMID: 33520985 PMCID: PMC7841205 DOI: 10.3389/fcell.2020.601006] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/15/2020] [Indexed: 12/16/2022] Open
Abstract
Together with fibroblast growth factors (FGFs) 19 and 21, FGF23 is an endocrine member of the family of FGFs. Mainly secreted by bone cells, FGF23 acts as a hormone on the kidney, stimulating phosphate excretion and suppressing formation of 1,25(OH)2D3, active vitamin D. These effects are dependent on transmembrane protein αKlotho, which enhances the binding affinity of FGF23 for FGF receptors (FGFR). Locally produced FGF23 in other tissues including liver or heart exerts further paracrine effects without involvement of αKlotho. Soluble Klotho (sKL) is an endocrine factor that is cleaved off of transmembrane Klotho or generated by alternative splicing and regulates membrane channels, transporters, and intracellular signaling including insulin growth factor 1 (IGF-1) and Wnt pathways, signaling cascades highly relevant for tumor progression. In mice, lack of FGF23 or αKlotho results in derangement of phosphate metabolism and a syndrome of rapid aging with abnormalities affecting most organs and a very short life span. Conversely, overexpression of anti-aging factor αKlotho results in a profound elongation of life span. Accumulating evidence suggests a major role of αKlotho as a tumor suppressor, at least in part by inhibiting IGF-1 and Wnt/β-catenin signaling. Hence, in many malignancies, higher αKlotho expression or activity is associated with a more favorable outcome. Moreover, also FGF23 and phosphate have been revealed to be factors relevant in cancer. FGF23 is particularly significant for those forms of cancer primarily affecting bone (e.g., multiple myeloma) or characterized by bone metastasis. This review summarizes the current knowledge of the significance of FGF23 and αKlotho for tumor cell signaling, biology, and clinically relevant parameters in different forms of cancer.
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Affiliation(s)
- Franz Ewendt
- Department of Nutritional Physiology, Institute of Agricultural and Nutritional Sciences, Martin-Luther University Halle-Wittenberg, Halle, Germany
| | - Martina Feger
- Department of Physiology, University of Hohenheim, Stuttgart, Germany
| | - Michael Föller
- Department of Physiology, University of Hohenheim, Stuttgart, Germany
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12
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MicroRNA-199a-5p suppresses the cell growth of colorectal cancer by targeting oncogene Caprin1. 3 Biotech 2020; 10:453. [PMID: 33088650 DOI: 10.1007/s13205-020-02433-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/08/2020] [Indexed: 01/22/2023] Open
Abstract
MicroRNAs-199a-5p (miR-199a-5p) plays critical regulatory roles in various types of human cancers. However, the biological function and regulatory mechanisms of miR-199a-5p in colorectal cancer (CRC) remain unclear. The aim of this study was to investigate the role of miR-199a-5p in CRC and possible mechanisms of its action. The expression of miR-199a-5p in CRC tumor tissues was validated using quantitative real-time PCR (qRT-PCR). The effects of miR-199a-5p on cell proliferation and apoptosis were evaluated in vitro. Then, the association of miR-199a-5p and its downstream target was investigated in both cell line and clinical specimens. Furthermore, gain- and loss-of-function studies of cytoplasmic activation/proliferation-associated protein-1 (Caprin1) were performed to assess whether the suppressive effect of on CRC cells were via targeting Caprin1. Using a microarray platform, we focused on miR-199a-5p for further research, which was one of the most markedly downregulated miRNAs in CRC tumor tissues. Functionally, the overexpression of miR-199a-5p inhibited proliferation and induced apoptosis in both HTC116 and SW480 cells. Furthermore, cytoplasmic activation/proliferation-associated protein-1 (Caprin1), a well-known oncogene, was directly targeted by miR-199a-5p. It was also observed that Caprin1 was upregulated, and inversely correlated with miR-199a-5p levels in CRC tissues. Further investigations revealed that knockdown of Caprin1 by siRNA has similar role with miR-199a-5p overexpression in CRC cells, suggesting the oncogenic role of Caprin1 in CRC. In the contrast, we found that overexpression of Caprin1 reversed the suppressive effects of miR-199a-5p on CRC cells. Collectively, our study suggests that miR-199a-5p/Caprin1 axis may serve as potential therapeutic targets for the treatment of CRC.
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13
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Tang J, Yu H, Wang Y, Duan G, Wang B, Li W, Zhu Z. microRNA-199a counteracts glucocorticoid inhibition of bone marrow mesenchymal stem cell osteogenic differentiation through regulation of Klotho expression in vitro. Cell Biol Int 2020; 44:2532-2540. [PMID: 32869899 DOI: 10.1002/cbin.11460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 08/11/2020] [Accepted: 08/30/2020] [Indexed: 11/11/2022]
Abstract
Osteogenic differentiation (OD) of bone marrow mesenchymal stem cells (BMSCs) is critically important for mitigation of osteoporosis. Glucocorticoids (GCs) are extensively used for treating chronic inflammation, although long-term exposure to GCs is capable of triggering osteoporosis. microRNAs (miRNAs) have been reported to play a critical role in bone diseases. In the present study, we treated BMSCs with dexamethasone (DEX) during OD to stimulate GC-mediated osteoporosis. Microarray and quantitative polymerase chain reaction (Q-PCR) assays demonstrated that miR-199a was upregulated during OD of BMSCs, while DEX treatment caused a significant reduction in miR-199a. Alkaline phosphatase (ALP) activity, Alizarin red (AR) staining, and Q-PCR were applied to assess the role of miRNA-199a overexpression in DEX-triggered OD inhibition. miR-199a was able to rescue OD and ALP activity, which were inhibited by DEX. Additionally, we observed that ALP, BMP2, COL1A1, and Runx2 were increased after transfection of miRNA-199a mimics. Furthermore, we confirmed that miRNA-199a facilitates OD of BMSCs through direct inhibition of Klotho protein and messenger RNA expression affecting the downstream fibroblast growth factor receptor 1/extracellular-signal-regulated kinase and Janus kinase 1/signal transducer and activator of transcription 1 pathways. This study indicates that miR-199a plays a critical role in preventing GC-mediated osteoblast differentiation and may function as a promising miRNA biomarker for osteoporosis.
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Affiliation(s)
- Jinshan Tang
- Department of Orthopedics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China.,Department of Orthopedics, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Huaixi Yu
- Department of Orthopedics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China.,Department of Orthopedics, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Yunqing Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Gang Duan
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Bin Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Wenbo Li
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ziqiang Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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Long noncoding RNA PART1 restrains aggressive gastric cancer through the epigenetic silencing of PDGFB via the PLZF-mediated recruitment of EZH2. Oncogene 2020; 39:6513-6528. [PMID: 32901105 DOI: 10.1038/s41388-020-01442-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 07/19/2020] [Accepted: 08/21/2020] [Indexed: 01/26/2023]
Abstract
Current reports refer to the role of long noncoding RNA (lncRNA) prostate androgen-regulated transcript 1 (PART1) as a tumor suppressor in some types of cancer but as an oncogene in other kinds of cancer. In gastric cancer, it had been reported to be downregulated. However, the clinical significance and underlying mechanism of PART1 function in gastric cancer remains undefined. Here, seven differential expression levels of noncoding RNAs (DE-lncRNAs) were screened from gastric cancer through a probe reannotation of a human exon array. PART1 was selected for further study because of its high fold change number. In our cohort, PART1 was identified as a significant downregulated lncRNA in gastric cancer tissues by qPCR and in situ hybridization (ISH), and its low expression was significantly correlated with postoperative metastasis and short overall survival time after surgery. Through the results of gain-of-function experiments, PART1 was confirmed as a tumor suppressor that can decrease not only cell viability, migration, and invasion in vitro but also tumorigenesis and tumor metastasis in vivo. Mechanistically, RNA pull-down and RNA-binding protein immunoprecipitation (RIP) showed that PART1 interacts with androgen receptor (AR), and then, promyelocytic leukemia zinc finger (PLZF) is upregulated in an androgen-independent manner. In a chain reaction, chromatin immunoprecipitation (ChIP) assay additionally illustrated that PLZF upregulation increased the enrichment of EZH2 and H3K27 trimethylation in the platelet-derived growth factor (PDGFB) promotor, thereby inhibition of PDGFB and the subsequent PDGFRβ/PI3K/Akt signaling pathway. Based on these findings, we showed PART1 plays a tumor suppressor role by promoting PLZF expression followed by recruitment of EZH2 to mediate epigenetic PDGFB silencing and downstream PI3K/Akt inhibition, suggesting that PART1 has a key role in restraining the aggressive ability of GC cells and providing a novel perspective on lncRNAs in GC progression.
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Abstract
Glycosylation is a sophisticated informational system that controls specific biological functions at the cellular and organismal level. Dysregulation of glycosylation may underlie some of the most complex and common diseases of the modern era. In the past 5 years, microRNAs have come to the forefront as a critical regulator of the glycome. Herein, we review the current literature on miRNA regulation of glycosylation and how this work may point to a new way to identify the biological importance of glycosylation enzymes.
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Affiliation(s)
- Chu T Thu
- Biomedical Chemistry Institute, Department of Chemistry, New York University, New York, New York 10003, United States
| | - Lara K Mahal
- Biomedical Chemistry Institute, Department of Chemistry, New York University, New York, New York 10003, United States
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16
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Zhang G, Zhai N, Zhang X. Alkannin represses growth of pancreatic cancer cells based on the down regulation of miR-199a. Biofactors 2020; 46:849-859. [PMID: 31967380 DOI: 10.1002/biof.1613] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 12/27/2019] [Indexed: 01/27/2023]
Abstract
Alkannin displays tumor suppressive activity by initiating apoptosis. Here, we corroborated its role in pancreatic carcinoma (PANC-1) cells and addressed the molecular mechanism in which microRNA-199a (miR-199a) and Klotho might be implicated. PANC-1 and MIN6 cells were treated by alkannin and its role was evaluated in cellular viability. Next we assessed the ability of PANC-1 cells to proliferate, migrate, and invade as well as apoptosis process. Besides, proliferating cell nuclear antigen (PCNA), CyclinD1, p53, and caspases were quantified using Western blot. miR-199a was detected by qRT-PCR. miR-199a-silenced or -replenished cells were established to study its function role in Klotho in conjunction with alkannin. Further, Klotho-overexpressed or -silenced cells were constructed to investigate the alteration of mTOR and MEK/ERK pathways. Alkannin repressed the viability of PANC-1 cells instead of MIN6 cells. Alkannin counteracted the growth of PANC-1 cells through inhibiting proliferation, migration, and invasion and facilitating apoptosis, which was evidenced by the modulation on PCNA, CyclinD1, p53, and cleavage of caspases. The silence of miR-199a by alkannin was also involved in the antitumor process. Alkannin enhanced Klotho expression possibly through silencing miR-199a. Besides, mTOR and MEK/ERK signaling were counteracted by Klotho overexpression while facilitated by its silence. Alkannin inhibited the growth of PANC-1 cells via modulating miR-199a-Klotho node. During this process, mTOR and MEK/ERK pathways were blunted.
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Affiliation(s)
- Guochang Zhang
- Department of Critical Care Medicine, Jining No.1 People's Hospital, Jining, Shandong, China
- Affiliated Jining No. 1 People's Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Nan Zhai
- Department of Critical Care Medicine, Jining No.1 People's Hospital, Jining, Shandong, China
| | - Xiaofen Zhang
- Department of Critical Care Medicine, Jining No.1 People's Hospital, Jining, Shandong, China
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Yang X, Feng KX, Li H, Wang L, Xia H. MicroRNA-199a Inhibits Cell Proliferation, Migration, and Invasion and Activates AKT/mTOR Signaling Pathway by Targeting B7-H3 in Cervical Cancer. Technol Cancer Res Treat 2020; 19:1533033820942245. [PMID: 32856542 PMCID: PMC7457410 DOI: 10.1177/1533033820942245] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Cervical cancer is a deadly disease. Some microRNAs are involved in tumor invasion and metastasis. Decreased expression of microRNA-199a has been correlated with tumorigenesis. In our study, the quantitative real-time polymerase chain reaction results indicated that microRNA-199a was expressed at lower levels in cervical cancer tissues, and the expression level of B7-H3 was significantly increased compared with that in the adjacent normal tissues, and the expression levels of B7-H3 and microRNA-199a in cervical cancer tissues and in adjacent normal tissues were inversely correlated. We also found that the expression of microRNA-199a was downregulated in cervical cancer cell lines when compared to immortalized cells. In this study, B7-H3 was identified as a novel target of microRNA-199a in cervical cancer. TargetScan (http://www.targetscan.org/) bioinformatics analysis was used to predict that the 3'-untranslated region of B7-H3 is a direct target of microRNA-199a. The result was also verified by the luciferase reporter assay. MicroRNA-199a could directly target the 3'-untranslated region of B7-H3, but the specific signaling pathways that were involved in regulating B7-H3 expression remained unclear. To clarify whether the suppressive effect of microRNA-199a was mediated through B7-H3, a series of experiments were performed. We found that the overexpression of microRNA-199a inhibited cell proliferation, migration, and invasion via direct binding to B7-H3. Epithelial-mesenchymal transition is a major factor involved in cervical cancer metastasis. Quantitative real-time polymerase chain reaction and western blot results indicated that microRNA-199a inhibits tumor progression in cervical cancer by targeting B7-H3. The microRNAs regulatory network is quite complex. We further examined the effect of microRNA-199a on the AKT/mTOR signaling pathway. We explored the regulatory role of microRNA-199a and first demonstrated that highly expressed microRNA-199a inhibits tumor growth and activates the AKT/mTOR signaling pathway by targeting B7-H3 in vivo and in vitro. Our findings not only provide a better understanding of the pathogenesis of cervical cancer but also provide novel findings and theoretical support for potential targeted therapeutic tools for cervical cancer.
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Affiliation(s)
- Xiang Yang
- Department of Gynecology, 477093Central Hospital of Panyu District, Shiqiao, Guangzhou, People's Republic of China
| | - Kai-Xun Feng
- Department of Gynecology, 477093Central Hospital of Panyu District, Shiqiao, Guangzhou, People's Republic of China
| | - Hu Li
- Department of Gynecology, 477093Central Hospital of Panyu District, Shiqiao, Guangzhou, People's Republic of China
| | - Li Wang
- Department of Gynecology, 477093Central Hospital of Panyu District, Shiqiao, Guangzhou, People's Republic of China
| | - Hong Xia
- Department of Gynecology, 477093Central Hospital of Panyu District, Shiqiao, Guangzhou, People's Republic of China
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Ding Y, Ding K, Gong W, Wei H, Mo W, Ding X. WITHDRAWN: Long non-coding RNA LUCAT1 up-regulates the expression of HIF-1α and promotes the proliferation and metastasis of breast cancer cells via sponging miR-199a-5p. Biomed J 2020. [DOI: 10.1016/j.bj.2020.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Sachdeva A, Gouge J, Kontovounisios C, Nikolaou S, Ashworth A, Lim K, Chong I. Klotho and the Treatment of Human Malignancies. Cancers (Basel) 2020; 12:cancers12061665. [PMID: 32585905 PMCID: PMC7352559 DOI: 10.3390/cancers12061665] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 06/16/2020] [Indexed: 12/24/2022] Open
Abstract
Klotho was first discovered as an anti-ageing protein linked to a number of age-related disease processes, including cardiovascular, renal, musculoskeletal, and neurodegenerative conditions. Emerging research has also demonstrated a potential therapeutic role for Klotho in cancer biology, which is perhaps unsurprising given that cancer and ageing share similar molecular hallmarks. In addition to functioning as a tumour suppressor in numerous solid tumours and haematological malignancies, Klotho represents a candidate therapeutic target for patients with these diseases, the majority of whom have limited treatment options. Here, we examine contemporary evidence evaluating the anti-neoplastic effects of Klotho and describe the modulation of downstream oncogenic signalling pathways, including Wnt/β-catenin, FGF, IGF1, PIK3K/AKT, TGFβ, and the Unfolded Protein Response. We also discuss possible approaches to developing therapeutic Klotho and consider technological advances that may facilitate the delivery of Klotho through gene therapy.
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Affiliation(s)
- Aishani Sachdeva
- The Royal Marsden NHS Foundation Trust, London SW6 6JJ, UK; (A.S.); (C.K.)
- Department of Surgery and Cancer, Chelsea and Westminster Hospital, London SW10 9NH, UK;
| | - Jerome Gouge
- Institute of Structural and Molecular Biology, Birkbeck College, London WC1E 7HX, UK;
| | - Christos Kontovounisios
- The Royal Marsden NHS Foundation Trust, London SW6 6JJ, UK; (A.S.); (C.K.)
- Department of Surgery and Cancer, Chelsea and Westminster Hospital, London SW10 9NH, UK;
| | - Stella Nikolaou
- Department of Surgery and Cancer, Chelsea and Westminster Hospital, London SW10 9NH, UK;
| | - Alan Ashworth
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA;
| | - Kenneth Lim
- Division of Nephrology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202-5181, USA;
| | - Irene Chong
- The Royal Marsden NHS Foundation Trust, London SW6 6JJ, UK; (A.S.); (C.K.)
- The Institute of Cancer Research, London SW3 6JB, UK
- Correspondence:
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The value of circulating microRNAs for early diagnosis of B-cell lymphoma: A case-control study on historical samples. Sci Rep 2020; 10:9637. [PMID: 32541886 PMCID: PMC7295742 DOI: 10.1038/s41598-020-66062-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 05/11/2020] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs are small regulatory RNAs that are deregulated in a wide variety of human cancers, including different types of B-cell lymphoma. Nevertheless, the feasibility of circulating microRNA for early diagnosis of B-cell lymphoma has not been established. To address the possibility of detecting specific circulating microRNAs years before a B-cell lymphoma is diagnosed, we studied the plasma expression of microRNA first in pre-treatment samples from patients with diffuse large B-cell lymphoma and subsequently in repository samples from blood donors who later developed B-cell lymphomas. In addition, we studied the microRNA expression in the diagnostic lymphoma biopsy. The most strongly induced (miR-326) and suppressed (miR-375) plasma microRNA at diagnosis, when compared with healthy blood donors, were also substantially up- or down-regulated in plasma repository samples taken from several months to up to two years before the blood donors were diagnosed with B-cell lymphoma. Importantly, at these time points the donors had no signs of disease and felt healthy enough to donate blood. In conclusion, this first study of plasma microRNA profiles from apparently healthy individuals, taken several years before B-cell lymphoma diagnosis, suggests that plasma microRNA profiles may be predictive of lymphoma development.
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miR-199a-5p Exacerbated Intestinal Barrier Dysfunction through Inhibiting Surfactant Protein D and Activating NF- κB Pathway in Sepsis. Mediators Inflamm 2020; 2020:8275026. [PMID: 32508527 PMCID: PMC7251462 DOI: 10.1155/2020/8275026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 04/02/2020] [Accepted: 04/07/2020] [Indexed: 12/17/2022] Open
Abstract
Sepsis is a severe disease, which results from the excessive inflammatory response to the infection. Dysfunction of intestinal barrier is a crucial problem in various pathological conditions. Meanwhile, microRNAs exhibit significant roles in the modulation of many diseases, including sepsis. Multiple investigations indicate that miR-199a-5p participates in different human diseases. Nevertheless, little is known on the roles of miR-199a-5p in sepsis. Herein, we evaluated the mechanism of miR-199a-5p on the intestinal barrier dysfunction in sepsis. Intestinal mucosa permeability indicators including D-lactic acid, DAO, and FD-40 levels were determined, and they were greatly increased in sepsis. Then, we proved that miR-199a-5p was induced in sepsis mice tissues and isolated intestinal epithelial cells. Moreover, miR-199a-5p increased D-lactic acid, DAO, and FD-40 while inhibition of miR-199a-5p exhibited a reversed process. Additionally, we observed that miR-199a-5p affected the oxidative damage and inflammation in the intestine tissues from sepsis mice. The content of MDA was elevated whereas SOD was remarkably repressed in the miR-199a-5p mimic group. IL-6, IL-1β, and TNF-α were induced by miR-199a-5p overexpression while IL-10 was reduced by miR-199a-5p. Subsequently, surfactant protein D (SP-D) was predicted as the target of miR-199a-5p. The activation of NF-κB has been identified in sepsis. Herein, we demonstrated that inhibitor of miR-199a-5p contributed to IEC injury via targeting SP-D and inactivating the NF-κB pathway. These revealed miR-199a-5p exacerbated the intestinal barrier dysfunction via inhibiting SP-D and activating the NF-κB pathway in sepsis.
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ROR2 suppresses metastasis of prostate cancer via regulation of miR-199a-5p-PIAS3-AKT2 signaling axis. Cell Death Dis 2020; 11:376. [PMID: 32415173 PMCID: PMC7228945 DOI: 10.1038/s41419-020-2587-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 12/18/2022]
Abstract
Bones are the most common metastatic sites for prostate cancer (PCa). Receptor tyrosine kinase-like orphan receptor 2 (ROR2), a noncanonical Wnt receptor, plays crucial roles in skeletal morphogenesis, osteoblast differentiation, and bone formation. The role of ROR2 in PCa metastasis is unclear. We analyzed online datasets from Oncomine as well as using IHC staining on tissue array to determine the relationship between ROR2 expression level and disease outcome of PCa. To investigate how ROR2 regulates migration and invasion of PCa cells, we performed transwell assay and orthotopic xenograft model in nude mice. We then applied the Micro-Western Array (MWA), a high-throughput western blotting platform to analyze the downstream signaling pathways being regulated by ROR2. Compared with nonmalignant PZ-HPV-7 and RWPE-1 cells, PCa cell lines express lower level of ROR2 protein. Constitutive expression of ROR2 in PC-3, DU-145, or C4-2B PCa cells significantly suppressed the cell migration, invasion, and epithelial-mesenchymal transition (EMT) proteins. MWA, western blotting, and microRNA analysis showed that elevation of ROR2 suppressed the expression of miR-199a-5p, which in turn increased the expression of PIAS3. The upregulation of PIAS3 then decreased AKT2 and the phosphorylation of AKT, resulting in the inhibition of migration and invasion of PCa cells both in vitro and in orthotopic xenograft mice model. IHC staining of tissue array and Oncomine datasets analysis indicated that the gene and protein level of ROR2 is much lower in metastatic prostate tumors as compared with primary tumors or adjacent normal prostate tissues. Low level of ROR2 correlated to poor survival and high recurrent frequency in PCa patients. In conclusion, we discovered that ROR2 suppresses PCa metastasis via regulation of PIAS3-PI3K-AKT2 signaling axis.
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LINC00619 restricts gastric cancer progression by preventing microRNA-224-5p-mediated inhibition of OPCML. Arch Biochem Biophys 2020; 689:108390. [PMID: 32359894 DOI: 10.1016/j.abb.2020.108390] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 04/03/2020] [Accepted: 04/22/2020] [Indexed: 12/12/2022]
Abstract
Several long intergenic noncoding RNAs (lincRNAs) have been linked to carcinogenesis; however, little is known about the role of LINC00619 in gastric cancer (GC). LINC00619 was identified among differentially expressed lncRNAs linked to gastric cancer based on microarray analysis and its relationships with miR-224-5p and opioid binding protein/cell adhesion molecule-like gene (OPCML) were investigated. LINC00619, miR-224-5p, and OPCML expression were measured in GC tissues and cells. Ectopic expression and depletion experiments were conducted to assess the effects of LINC00619, miR-224-5p and OPCML on cell proliferation, invasion, migration and apoptosis as well as their effects on the expression of apoptosis- and metastasis-related genes (Bcl-2, Bax, MMP-2 and MMP-9). Tumorigenicity in the nude mice was also examined. Gastric cancer was characterized by downregulation of LINC00619 and OPCML and upregulation of miR-224-5p. Additionally, we found that miR-224-5p could interact with both LINC00619 and OPCML. Upregulation of LINC00619, which binds to miR-224-5p, led to decreased miR-224-5p expression while increasing the expression of OPCML, a target gene of miR-224-5p. Overexpression of LINC00619 or OPCML or downregulation of miR-224-5p suppressed cell proliferation, invasion, migration and tumorigenicity while promoting apoptosis in GC. Our results indicated that LINC00619 functions as a tumor suppressor in GC by impairing miR-224-5p-mediated inhibition of OPCML.
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Belguith I, Dhieb D, Turki M, Yaich S, Chaabene K, Mnif M, Ayadi F, Keskes LA. Diagnostic value of miR-199a and miR-21 in the plasma of infertile women with dysregulated AMH levels. HUM FERTIL 2020; 25:154-165. [PMID: 32283952 DOI: 10.1080/14647273.2020.1750715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This work aimed to explore the expression pattern of circulating miR-199a-3p, miR-21-5p and miR-let7i-3p in infertile women with dysregulated AMH levels. Quantitative real-time PCR was used to measure miR-199a-3p, miR-21-5p, and miR-let7i-3p expression levels in 60 plasma samples of infertile women with low or high AMH levels. Bioinformatic analyses for microRNAs predicting target genes and molecular pathways were performed according to gene ontology (GO) analysis and KEGG pathways. Only miR-199a-3p and miR-21-5p were significantly over and under-expressed, respectively, in the plasma samples of all infertile women with low or high AMH levels versus controls (p-value = 0.01). Furthermore, the diagnostic value miR-199a-3p yielded a receiver operating characteristic (ROC) curve with area under the curve (AUC) of 0.82 with a 95% CI [0.72-0.92] and an AUC of 0.81, for miR-21-5p, 95% CI [0.69-0.92]. The combined ROC curve of miR-21 and miR-199a provided an optimal combination with AUC = 0.98, 95% CI [0.96-1], and, a cut-off point (0.42) which provided 98% sensitivity and 87% specificity. In conclusion, circulating miR-199a-3p and miR-21-5p vary significantly whenever AMH levels of infertile women are disturbed and could potentially serve as non-invasive biomarkers in distinguishing infertile from fertile women.
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Affiliation(s)
- Imen Belguith
- Faculty of Medicine, Laboratory of Human Molecular Genetics, University of Sfax, Sfax, Tunisia
| | - Dhoha Dhieb
- Faculty of Medicine, Laboratory of Human Molecular Genetics, University of Sfax, Sfax, Tunisia
| | - Mouna Turki
- Laboratory of Biochemistry, CHU Habib Bourguiba, Sfax University, Sfax, Tunisia
| | - Sourour Yaich
- Department of Community Medicine and Epidemiology, CHU Hedi Chaker, Sfax, Tunisia
| | - Kais Chaabene
- Obstetrics and Gynecology Department, CHU Hedi Chaker, Sfax, Tunisia
| | - Mouna Mnif
- Department of Endocrinology Diabetology, CHU Hedi Chaker, Sfax, Tunisia
| | - Fatma Ayadi
- Laboratory of Biochemistry, CHU Habib Bourguiba, Sfax University, Sfax, Tunisia
| | - Leila Ammar Keskes
- Faculty of Medicine, Laboratory of Human Molecular Genetics, University of Sfax, Sfax, Tunisia
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25
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Jin Y, Wang H, Zhu Y, Feng H, Wang G, Wang S. miR-199a-5p is involved in doxorubicin resistance of non-small cell lung cancer (NSCLC) cells. Eur J Pharmacol 2020; 878:173105. [PMID: 32278855 DOI: 10.1016/j.ejphar.2020.173105] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/02/2020] [Accepted: 04/06/2020] [Indexed: 12/19/2022]
Abstract
Non-small cell lung cancer (NSCLC) is one of the prevalent and deadly cancers worldwide. Chemotherapy resistance is one of the most challenging problems for NSCLC and other cancer treatment. Recent study suggested that miRNAs are involved in therapeutic functions of chemotherapy during cancer treatment. Our present study established doxorubicin (Dox) resistant NSCLC A549 and H460 cells (named A549Dox/R and H460 Dox/R). We found that miR-199a-5p was significantly down regulated in Dox resistant cells. Over expression of miR-199a-5p can increase the Dox sensitivity of resistant cells. Among various targets of miR-199a-5p, chemoresistance can increase the expression of ABCC1 and HIF-1α. Gain and loss of function studies confirmed that both ABCC1 and HIF-1α were involved in the chemoresistance of NSCLC cells. Collectively, our data showed that miR-199a-5p regulated expression of ABCC1 and HIF-1α were involved in Dox resistance of NSCLC.
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Affiliation(s)
- Yonglong Jin
- Department of Radiotherapy, Affiliated Hospital of Qingdao University, Qingdao, 266000, China.
| | - Huiyun Wang
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, 266000, China.
| | - Yingqian Zhu
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, 266000, China.
| | - Hui Feng
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, 266000, China.
| | - Guanqun Wang
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, 266000, China.
| | - Shasha Wang
- Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, 266000, China.
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26
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Wang Q, Ye B, Wang P, Yao F, Zhang C, Yu G. Overview of microRNA-199a Regulation in Cancer. Cancer Manag Res 2019; 11:10327-10335. [PMID: 31849522 PMCID: PMC6911337 DOI: 10.2147/cmar.s231971] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 11/23/2019] [Indexed: 12/17/2022] Open
Abstract
microRNAs (miRNAs) are a class of endogenous short, non-coding RNAs that regulate a multitude of genes at the post-transcriptional level. miR-199, which is a highly conserved miRNA family, consists of miR-199a and miR-199b. Researchers mainly focused on miR-199a over the past few years. Functional studies have demonstrated that mature miR-199a is a key player in the maintenance of normal homeostasis and in the regulation of disease pathogenesis. Here, we summarize the biological functions of miR-199a and review recent research on its roles in the physiological processes of cancer cells, such as proliferation, migration, invasion, apoptosis, autophagy and glycometabolism.
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Affiliation(s)
- Qiwen Wang
- Henan International Joint Laboratory of Pulmonary Fibrosis, College of Life Science, Henan Normal University, Xinxiang 453007, Henan, People's Republic of China.,State Key Laboratory Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, People's Republic of China
| | - Bingyu Ye
- Henan International Joint Laboratory of Pulmonary Fibrosis, College of Life Science, Henan Normal University, Xinxiang 453007, Henan, People's Republic of China.,State Key Laboratory Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, People's Republic of China
| | - Ping Wang
- Henan International Joint Laboratory of Pulmonary Fibrosis, College of Life Science, Henan Normal University, Xinxiang 453007, Henan, People's Republic of China.,State Key Laboratory Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, People's Republic of China
| | - Fenjie Yao
- Henan International Joint Laboratory of Pulmonary Fibrosis, College of Life Science, Henan Normal University, Xinxiang 453007, Henan, People's Republic of China.,State Key Laboratory Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, People's Republic of China
| | - Chunyan Zhang
- Henan International Joint Laboratory of Pulmonary Fibrosis, College of Life Science, Henan Normal University, Xinxiang 453007, Henan, People's Republic of China.,State Key Laboratory Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, People's Republic of China
| | - Guoying Yu
- Henan International Joint Laboratory of Pulmonary Fibrosis, College of Life Science, Henan Normal University, Xinxiang 453007, Henan, People's Republic of China.,State Key Laboratory Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, People's Republic of China
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27
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Lv H, Hou H, Lei H, Nie C, Chen B, Bie L, Han L, Chen X. MicroRNA-6884-5p Regulates the Proliferation, Invasion, and EMT of Gastric Cancer Cells by Directly Targeting S100A16. Oncol Res 2019; 28:225-236. [PMID: 31796150 PMCID: PMC7851531 DOI: 10.3727/096504019x15753718797664] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
S100 binding protein A16 (S100A16) expression levels are closely associated with microRNA (miRNA) processing. Higher levels of S100A16 are reported during the progression of many cancers. Our study mainly explored the interaction between S100A16 and miR-6884-5p in gastric cancer (GC). Quantitative real-time polymerase chain reaction (qRT-PCR) was used to determine the level of S100A16 and miR-6884-5p in GC tissues and cell lines. The si-S100A16, pcDNA-S100A16, miR-6884-5p mimic or inhibitor was transfected into GC cells, and the effects of S100A16 and miR-6884-5p on the proliferation, invasion, and epithelial-mesenchymal transition (EMT) were explored by qRT-PCR and Western blot assays. Luciferase assays were performed to validate S100A16 as an miR-6884-5p target in GC cells. In our study, we found that the level of miR-6884-5p was significantly decreased and the expression of S100A16 was significantly increased in GC tissues and cell lines. There was a close association between these changes. Knockdown of S100A16 significantly inhibited the proliferation, invasion, and EMT of GC cells. The bioinformatics analysis predicted that S100A16 is a potential target gene of miR-6884-5p, and the luciferase reporter assay confirmed that miR-6884-5p could directly target S100A16. Introduction of miR-6884-5p to GC cells had similar effects to S100A16 silencing. Overexpression of S100A16 in GC cells partially reversed the inhibitory effects of the miR-6884-5p mimic. miR-6884-5p inhibited the proliferation, invasion, and EMT of GC cells by directly decreasing S100A16 expression.
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Affiliation(s)
- Huifang Lv
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhouChina
| | - Honglin Hou
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhouChina
| | - Huijun Lei
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhouChina
| | - Caiyun Nie
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhouChina
| | - Beibei Chen
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhouChina
| | - Liangyu Bie
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhouChina
| | - Lili Han
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhouChina
| | - Xiaobing Chen
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer HospitalZhengzhouChina
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28
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Shakib H, Rajabi S, Dehghan MH, Mashayekhi FJ, Safari-Alighiarloo N, Hedayati M. Epithelial-to-mesenchymal transition in thyroid cancer: a comprehensive review. Endocrine 2019; 66:435-455. [PMID: 31378850 DOI: 10.1007/s12020-019-02030-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 07/19/2019] [Indexed: 12/12/2022]
Abstract
The Metastatic progression of solid tumors, such as thyroid cancer is a complex process which involves various factors. Current understanding on the role of epithelial-mesenchymal transition (EMT) in thyroid carcinomas suggests that EMT is implicated in the progression from follicular thyroid cancer (FTC) and papillary thyroid cancer (PTC) to poorly differentiated thyroid carcinoma (PDTC) and anaplastic thyroid cancer (ATC). According to the literature, the initiation of the EMT program in thyroid epithelial cells elevates the number of stem cells, which contribute to recurrent and metastatic diseases. The EMT process is orchestrated by a complex network of transcription factors, growth factors, signaling cascades, epigenetic modulations, and the tumor milieu. These factors have been shown to be dysregulated in thyroid carcinomas. Therefore, molecular interferences restoring the expression of tumor suppressors, or thwarting overexpressed oncogenes is a hopeful therapeutic method to improve the treatment of progressive diseases. In this review, we summarize the recent findings on EMT in thyroid cancer focusing on the main role-players and regulators of this process in thyroid tumors.
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Affiliation(s)
- Heewa Shakib
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sadegh Rajabi
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | | | - Nahid Safari-Alighiarloo
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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29
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Li W, Wang L, Ji XB, Wang LH, Ge X, Liu WT, Chen L, Zheng Z, Shi ZM, Liu LZ, Lin MC, Chen JY, Jiang BH. MiR-199a Inhibits Tumor Growth and Attenuates Chemoresistance by Targeting K-RAS via AKT and ERK Signalings. Front Oncol 2019; 9:1071. [PMID: 31681604 PMCID: PMC6803549 DOI: 10.3389/fonc.2019.01071] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/30/2019] [Indexed: 12/21/2022] Open
Abstract
Glioma is the most malignant brain tumors in the world, the function and molecular mechanism of microRNA-199a (miR-199a) in glioma is not fully understood. Our research aims to investigate miR-199a/K-RAS axis in regulation of glioma tumor growth and chemoresistance. The function of miR-199a in glioma was investigated through in vitro and in vivo assays. We found that miR-199a in tumor tissues of glioma patients was significantly downregulated in this study. Kinase suppressor of ras 1 (K-RAS), was indicated as a direct target of miR-199a, as well as expression levels of K-RAS were inversely correlated with expression levels of miR-199a in human glioma specimens. Forced expression of miR-199a suppressed AKT and ERK activation, decreased HIF-1α and VEGF expression, inhibited cell proliferation and cell migration, forced expression of K-RAS restored the inhibitory effect of miR-199a on cell proliferation and cell migration. Moreover, miR-199a renders tumor cells more sensitive to temozolomide (TMZ) via targeting K-RAS. In vivo experiment validated that miR-199a functioned as a tumor suppressor, inhibited tumor growth by targeting K-RAS and suppressed activation of AKT, ERK and HIF-1α expression. Taken together, these findings indicated that miR-199a inhibits tumor growth and chemoresistance by regulating K-RAS, and the miR-199a/K-RAS axis is a potential therapeutic target for clinical intervention in glioma.
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Affiliation(s)
- Wei Li
- Department of Pathology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Lin Wang
- Institute of Medical and Pharmaceutical Sciences, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xiang-Bo Ji
- Institute of Medical and Pharmaceutical Sciences, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Li-Hong Wang
- Institute of Medical and Pharmaceutical Sciences, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xin Ge
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Wei-Tao Liu
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Ling Chen
- Department of Pathology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Zhong Zheng
- Department of Pathology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Zhu-Mei Shi
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Ling-Zhi Liu
- Department of Pathology, Carver College of Medicine, The University of Iowa, Iowa, IA, United States
| | - Marie C Lin
- Institute of Medical and Pharmaceutical Sciences, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jie-Yu Chen
- Department of Pathology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Bing-Hua Jiang
- Institute of Medical and Pharmaceutical Sciences, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China.,Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathology, Nanjing Medical University, Nanjing, China.,Department of Pathology, Carver College of Medicine, The University of Iowa, Iowa, IA, United States
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30
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Abolghasemi M, Yousefi T, Maniati M, Qujeq D. The interplay of Klotho with signaling pathway and microRNAs in cancers. J Cell Biochem 2019; 120:14306-14317. [DOI: 10.1002/jcb.29022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 04/16/2019] [Accepted: 04/18/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Maryam Abolghasemi
- Cellular and Molecular Biology Research Center, Health Research Institute Babol University of Medical Sciences Babol Iran
- Department of Clinical Biochemistry, School of Medicine Babol University of Medical Sciences Babol Iran
- Student Research Committee Babol University of Medical Sciences Babol Iran
| | - Tooba Yousefi
- Cellular and Molecular Biology Research Center, Health Research Institute Babol University of Medical Sciences Babol Iran
- Department of Clinical Biochemistry, School of Medicine Babol University of Medical Sciences Babol Iran
- Student Research Committee Babol University of Medical Sciences Babol Iran
| | - Mahmood Maniati
- Assistant Professor of the English Department Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center, Health Research Institute Babol University of Medical Sciences Babol Iran
- Department of Clinical Biochemistry, School of Medicine Babol University of Medical Sciences Babol Iran
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31
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Wei D, Wang W, Shen B, Zhou Y, Yang X, Lu G, Yang J, Shao Y. MicroRNA‑199a‑5p suppresses migration and invasion in oral squamous cell carcinoma through inhibiting the EMT‑related transcription factor SOX4. Int J Mol Med 2019; 44:185-195. [PMID: 31059001 PMCID: PMC6559314 DOI: 10.3892/ijmm.2019.4174] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 04/19/2019] [Indexed: 01/26/2023] Open
Abstract
MicroRNAs (miRs) are small, non-coding RNAs that can act as oncogenes or tumor suppressor genes in human cancer. Recent studies have revealed that miR-199a-5p is abnormally expressed in various types of human cancer; however, the potential role of miR-199a-5p in oral squamous cell carcinoma (OSCC) remains elusive. The present study investigated the role of miR-199a-5p in OSCC cells and explored the potential molecular mechanism. Reverse transcription-quantitative polymerase chain reaction was used to measure miR-199a-5p expression in OSCC tissues and adjacent normal oral epithelial tissues. Cell invasion and migration were evaluated using Transwell invasion and wound-healing assays in OSCC cells post-transfection with miR-199a-5p mimics or negative control mimics. In addition, a luciferase reporter assay was conducted to identify the target gene of miR-199a-5p in OSCC cells. The results demonstrated that miR-199a-5p expression was significantly downregulated in OSCC tissues and cell lines, and was associated with tumor progression in OSCC. Furthermore, overexpression of miR-199a-5p inhibited cell invasion and migration, and blocked the epithelial-mesenchymal transition (EMT) cascade. Notably, the results revealed that the EMT-related transcription factor SRY-box 4 (SOX4) was a direct target gene of miR-199a-5p, as determined by the direct binding of miR-199a-5p with the 3′-untranslated region of SOX4. In addition, knockdown of SOX4 by small interfering RNA-SOX4 suppressed proliferation, migration and invasion of OSCC cells. Conversely, overexpression of SOX4 rescued the suppressive effects of miR-199a-5p on cell migration and invasion. Collectively, these data indicated that miR-199a-5p may inhibit the migration and invasion of OSCC cells via targeting the EMT-related transcription factor SOX4, thus suggesting that miR-199a-5p may serve as a prognostic biomarker and therapeutic target in the treatment of OSCC.
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Affiliation(s)
- Dongyi Wei
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Weixin Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Baohong Shen
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Yanjun Zhou
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Xiaodong Yang
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Guangjian Lu
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Jianbin Yang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Yuebao Shao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
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32
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Qu D, Yang Y, Huang X. miR-199a-5p promotes proliferation and metastasis and epithelial-mesenchymal transition through targeting PIAS3 in cervical carcinoma. J Cell Biochem 2019; 120:13562-13572. [PMID: 30937952 DOI: 10.1002/jcb.28631] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/29/2019] [Accepted: 02/04/2019] [Indexed: 12/13/2022]
Abstract
Cervical carcinoma is the second most frequent gynecological malignancies in females worldwide. The objective of this study was to investigate the role of miR-199a-5p and protein inhibitor of activated signal transducer and activators of transcription 3 (PIAS3) in cervical carcinoma. Quantitative reverse transcription polymerase chain reaction was utilized to detect miR-199a-5p and PIAS3 expression in cervical carcinoma tissues and cells. 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide Kit, transwell assay were used to explore the biological functions of miR-199a-5p in cervical carcinoma. Western blot analysis was applied to determine the expression level of epithelial-mesenchymal transition (EMT)-associated proteins and PIAS3 expression. The relationship between miR-199a-5p and PIAS3 was verified by luciferase activity reporter assay. We found that miR-199a-5p was upregulated in cervical carcinoma tissues and cell lines, and overexpression of miR-199a-5p promoted cell proliferation and metastasis in cervical carcinoma. In addition, Western blot analysis indicated that the enforced upregulation of miR-199a-5p enhanced mesenchymal markers vimentin and N-cadherin expressions, whereas reduced epithelial marker E-cadherin expressions. miR-199a-5p directly targeted PIAS3 and negatively regulated PIAS3 level in cervical carcinoma cells. And upregulation of PIAS3 reversed the effects of miR-199a-5p in cervical carcinoma. Collectively, our data provide evidence for miR-199a-5p function in cervical carcinoma growth, EMT, and metastasis; it may be act as a therapeutic strategy target for patients with cervical carcinoma.
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Affiliation(s)
- Dacheng Qu
- Department of Obstetrics and Gynecology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People's Republic of China
| | - Yamei Yang
- Department of Obstetrics and Gynecology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People's Republic of China
| | - Xiaoping Huang
- Department of Obstetrics and Gynecology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People's Republic of China
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33
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Liu X, Yao B, Wu Z. miRNA-199a-5p suppresses proliferation and invasion by directly targeting NF-κB1 in human ovarian cancer cells. Oncol Lett 2018; 16:4543-4550. [PMID: 30214589 DOI: 10.3892/ol.2018.9170] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/28/2018] [Indexed: 12/12/2022] Open
Abstract
The aberrant expression of microRNA (miRNA)-199a-5p has been frequently reported in a number of cancer types, but to the best of our knowledge, this has not been reported in ovarian cancer (OC). The role and the molecular mechanism of miR-199a-5p in OC have not been reported. Therefore, the present study investigated the effects of miR-199a-5p overexpression on the proliferation and invasion of OC cells. The level of miR-199a-5p in OC cell lines was determined by reverse transcription-quantitative polymerase chain reaction. The miR-199a-5p mimic was transiently transfected into OC cells using Lipofectamine™ 2000 reagent. Subsequently, the BrdU-ELISA results indicated that the exogenous expression of miR-199a-5p inhibited cell proliferation. In addition, miR-199a-5p overexpression was able to inhibit the invasion of HO-8910 and ES-2 cells. RT-qPCR was performed to determine the expression of matrix metalloproteinase (MMP)-2 and -9 in OC cells. NF-κB1 expression was reduced by upregulation of miR-199a-5p. Bioinformatics analysis predicted that NF-κB1 was a potential target of miR-199a-5p. Luciferase reporter assay further confirmed that miR-199a-5p was able to directly target the 3'UTR of NF-κB1. In conclusion, miRNA-199a-5p may suppress the proliferation and invasion of human ovarian cancer cells by directly targeting NF-κB1.
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Affiliation(s)
- Xiaoxiao Liu
- Department of Internal Medicine-Oncology, Xinchang People's Hospital of Zhejiang, Shaoxing, Zhejiang 312500, P.R. China
| | - Baofeng Yao
- Department of Intensive Care Unit, Putuo Hospital of Zhejiang, Zhoushan, Zhejiang 316100, P.R. China
| | - Zhiming Wu
- Department of General Surgery, Shaoxing Hospital of China Medical University, Shaoxing, Zhejiang 312030, P.R. China
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34
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Chen Q, Zhang Y, Xu L. microRNA-340 influences cell proliferation, apoptosis and invasion by targeting NF-κB1 in gastric cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:3812-3824. [PMID: 31949768 PMCID: PMC6962829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 07/14/2017] [Indexed: 06/10/2023]
Abstract
Gastric cancer is a serious threat to human health, and its pathogenesis may be regulated by a variety of mRNAs. Abnormal expression of microRNA-340 has been frequently reported in many malignant neoplasms, while the molecular mechanism of miR-340 has not been explored in gastric cancer. In this study, the mRNA level of miR-340 was determined by real-time PCR in GC cell lines. The miR-340 mimic was transiently transfected into GC cells by using Lipofectamine™ 2000 reagent. The BrdU-ELISA results showed that introduction of miR-340 inhibited cell proliferation. It was demonstrated that miR-340 mimic arrested cell cycle progression and promoted apoptosis of MKN-45 and BGC-823 cells. In addition, the overexpression of miR-340 could inhibit invasion and EMT of MKN-45 and BGC-823 cells. The expression of NF-κB1 was evidently reduced by up-regulation of miR-340. Luciferase reporter assay further confirmed that miR-340 could directly target the 3'UTR of NF-κB1. Moreover, overexpression of NF-κB1 transfected with miR-340 mimic partially reversed the inhibitory of miR-340 mimic in MKN-45 and BGC-823 cells. In conclusion, miR-340 induced cell apoptosis and inhibited invasion by down-regulation of NF-κB1, which might be a potential target in treatment and prevention of gastric cancer.
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Affiliation(s)
- Qi Chen
- Department of Hepatopancreatobiliary of Surgery, Ningbo First HospitalNo.59 Liuting Road, Haishu District, Ningbo City, Zhejiang Province, P. R. China
| | - Yugao Zhang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan UniversityChengdu City, Sichuan Province, P. R. China
| | - Liping Xu
- The First Hospital of NingboNo.59 Liuting Road, Haishu District, Ningbo City, Zhejiang Province, P. R. China
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35
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Yang S, Sheng N, Pan L, Cao J, Liu J, Ma R. microRNA-3129 promotes cell proliferation in gastric cancer cell line SGC7901 via positive regulation of pRb. Braz J Med Biol Res 2018; 51:e6452. [PMID: 29791595 PMCID: PMC6002138 DOI: 10.1590/1414-431x20186452] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 02/16/2018] [Indexed: 12/11/2022] Open
Abstract
Several microRNAs (miRNAs) have been reported as oncogenes or tumor suppressors in many cancers, including gastric cancer (GC). However, the role and molecular mechanism of miR-3129 in GC is largely unknown. We aimed to explore the function and the underlying molecular mechanism of miR-3129 in GC. Cancer tissues and corresponding adjacent tissues were collected from 50 patients with GC, and the expression of miR-3129 was detected by RT-qPCR. The expression of miR-3129 and pRb in human GC cell line SCG7091 was altered by transient transfection. Thereafter, MTT and flow cytometry assays were used to analyze cell viability and cell cycle. The expression of cyclin E, CDK2, CDK2 inhibitors (p16 and 21), and pRb were detected by RT-qPCR and western blot. A significant up-regulation of miR-3129 was observed in GC tissues compared to adjacent tissues. Overexpression of miR-3129 significantly improved cell viability after 4 days of post-transfection. Flow cytometry assay results showed that the miR-3129 overexpression arrested more SGC7901 cells at S phase. Moreover, overexpression of miR-3129 down-regulated the expression of CDK2 inhibitors while it up-regulated the expression levels of cyclin E, CDK2, and pRb. Interestingly, we found that pRb inhibition reversed the effect of miR-3129 inhibitor on cell proliferation in SGC7901 cells, increased cell viability, reduced cells at G0/1 phase, and modulated the expression of proliferation-related factors. Our results revealed that miR-3129 functioned as an oncogene through positive regulation of pRb and may prove to be a promising option for molecular therapy of GC.
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Affiliation(s)
- Shaofeng Yang
- Department of Gastroenterology, Jining No. 1 People's Hospital, Jining, China
| | - Nan Sheng
- Department of Gastroenterology, Jining No. 1 People's Hospital, Jining, China
| | - Lili Pan
- Department of Gastroenterology, Jining No. 1 People's Hospital, Jining, China
| | - Jing Cao
- Department of Gastroenterology, Jining No. 1 People's Hospital, Jining, China
| | - Jiao Liu
- Department of Gastroenterology, Jining No. 1 People's Hospital, Jining, China
| | - Ran Ma
- Department of Gastroenterology, Jining No. 1 People's Hospital, Jining, China
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Yan M, Yang S, Meng F, Zhao Z, Tian Z, Yang P. MicroRNA 199a-5p induces apoptosis by targeting JunB. Sci Rep 2018; 8:6699. [PMID: 29703907 PMCID: PMC5923206 DOI: 10.1038/s41598-018-24932-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 04/03/2018] [Indexed: 01/18/2023] Open
Abstract
MicroRNAs participate in a variety of physiological and pathophysiological processes in various organs including the heart. Our previous work revealed that the level of miR-199a-5p was significantly higher in failing hearts than in control hearts. However, whether it is associated with the progression of heart failure (HF) and mediates cardiomyocyte apoptosis remained unclear. In the present study, we used various biochemical and molecular biological approaches to investigate the changes in miR-199a-5p levels in failing hearts in a rat model induced by acute myocardial infarction. We found that miR-199a-5p levels in the heart increased with the progression of HF, and overexpression of miR-199a-5p significantly increased apoptosis in untreated H9C2 cells and potentiated angiotensin II-induced apoptosis. Thus, our results indicate that miR-199a-5p is involved in the progression of HF and mediates cardiomyocyte apoptosis. We also confirmed that JunB, a member of the activator protein-1 transcription factor family, is one of direct targets of miR-199a-5p via a dual-luciferase reporter assay and mutagenesis on the 3' untranslated region of the JunB gene. Consistent with the above findings, overexpression of JunB in H9c2 cells suppressed cell apoptosis. Based on our findings, miR-199a-5p induces apoptosis by targeting JunB.
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Affiliation(s)
- Mengjie Yan
- Department of Internal Medicine and Cardiology, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Sibao Yang
- Department of Internal Medicine and Cardiology, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Fanbo Meng
- Department of Internal Medicine and Cardiology, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Zhihui Zhao
- College of Animal Science and Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Zhisen Tian
- Department of orthopedics, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Ping Yang
- Department of Internal Medicine and Cardiology, China-Japan Union Hospital of Jilin University, Changchun, 130033, China.
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He X, Liu Z, Xia Y, Xu J, Lv G, Wang L, Ma T, Jiang L, Mou Y, Jiang X, Ma J, Zhao Z, Ni H, Xu W, Ru G, Huang D, Tao H. HOXB7 overexpression promotes cell proliferation and correlates with poor prognosis in gastric cancer patients by inducing expression of both AKT and MARKs. Oncotarget 2018; 8:1247-1261. [PMID: 27901487 PMCID: PMC5352052 DOI: 10.18632/oncotarget.13604] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 11/11/2016] [Indexed: 12/23/2022] Open
Abstract
Increased expression of HOXB7 has been reported to correlate with the progression in many cancers. However, the specific mechanism by which it promotes the evolution of gastric cancer (GC) is poorly understood.In this study, we sought to investigate the role of HOXB7 in GC by assessing HOXB7 expression in patient tissue and its correlation to clinical characteristics. We found that GC tissues showed increased expression of HOXB7 and that the HOXB7 expression was significantly associated with Lauren classification, invasion depth, lymphatic metastasis and poor prognosis, and could serve as an independent prognostic factor. To further investigate the role of HOXB7 in GC, we generated stable GC cell lines and both over-expressed and knocked down HOXB7 expression. Over-expression of HOXB7 in GC cell lines enhanced cell proliferation, colony formation, migration and invasion ability, whereas the opposite trends were observed upon reduction of HOXB7 expression by knockdown. These findings were further supported by our in vivo studies which show that HOXB7 expression can affect the GC cells' subcutaneous growth and lung metastases. A Phospho-MAPK Array Kit was used to explore the possible mechanism of HOXB7-induced cell proliferation and invasion. We found that the AKT signaling pathway and the two members of the MAPK pathway, were involved in those promoting effects. In conclusion, our results showed that increased expression of HOXB7 might play an important role in promoting GC proliferation, migration and invasion by inducing both AKT and MAPK pathways, thus resulting in progression of, and poor prognosis in GC patients.
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Affiliation(s)
- Xujun He
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China
| | - Zhengchuang Liu
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China
| | - Yingjie Xia
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China
| | - Ji Xu
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China.,Department of Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Guocai Lv
- Department of Laboratory Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China.,Key Laboratory of Clinical In vitro Diagnostic Techniques of Zhejiang Province, Hangzhou 310003, China
| | - Lu Wang
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China
| | - Tonghui Ma
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China
| | - Liping Jiang
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China
| | - Yiping Mou
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China.,Department of Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Xiaoting Jiang
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China
| | - Jie Ma
- Department of Pathology, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China.,Department of Cardiothoracic Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Zhongkuo Zhao
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China.,Department of Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Haibin Ni
- Department of Surgery, Tongde Hospital of Zhejiang Province, Hangzhou 310012, Zhejiang, China
| | - Wenjuan Xu
- Department of Pathology, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China.,Department of Cardiothoracic Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Guoqing Ru
- Department of Pathology, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China.,Department of Cardiothoracic Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Dongsheng Huang
- Department of Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Houquan Tao
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, 310014, China.,Department of Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
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Ma S, Jia W, Ni S. miR-199a-5p inhibits the progression of papillary thyroid carcinoma by targeting SNAI1. Biochem Biophys Res Commun 2018; 497:181-186. [DOI: 10.1016/j.bbrc.2018.02.051] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 02/06/2018] [Indexed: 12/13/2022]
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Zeng B, Shi W, Tan G. MiR-199a/b-3p inhibits gastric cancer cell proliferation via down-regulating PAK4/MEK/ERK signaling pathway. BMC Cancer 2018; 18:34. [PMID: 29304764 PMCID: PMC5756398 DOI: 10.1186/s12885-017-3949-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 12/20/2017] [Indexed: 12/01/2022] Open
Abstract
Background Gastric cancer (GC) is one of the most frequent malignant tumors and the molecular mechanism underlying its proliferation remains far from completely understood. Although accumulating evidence shows that abnormal expression of microRNA (miRNA) is involved in tumorigenesis, the role of specific miRNAs involved in GC remains elusive. MiR-199a/b-3p functions as a tumor suppressor in diverse cancers, but its expression, function, and mechanism in GC remain unclear. Our aim is to explore miR-199a/b-3p expression and its role in regulating GC cell proliferation. Methods Real-time PCR was performed to determine miR-199a/b-3p expression in GC tissues and normal adjacent tissues as well as normal gastric mucosal cell line GES-1 and GC cell lines MGC-803 and SGC-7901. MTT assay and Western blot were performed to determine cell proliferation and expression of PAK4, p-MEK and p-ERK, respectively. MiR-199a/b-3p mimics-transfected assay and PAK-specific siRNA assay were performed to determine their function in cell proliferation, respectively. GC xenograft nude mice were used to determine miR-199a/b-3p function in cell proliferation. Results MiR-199a/b-3p expression was significantly decreased in GC tissues and GC cell lines MGC-803 and SGC-7901. MiR-199a/b-3p over-expression and PAK4 silencing inhibited cell proliferation and diminished the activation of p-MEK and p-ERK in MGC-803 and SGC-7901 cells, and miR-199a/b-3p over-expression reduced PAK4 expression. MiR-199a/b-3p over-expression suppressed MGC-803 cell growth and PAK4 expression in nude mice. Conclusions miR-199a/b-3p inhibits GC cell proliferation via down-regulating PAK4/MEK/ERK signaling pathway and may be a novel prognostic biomarker and a potential therapeutic target for GC patients. Electronic supplementary material The online version of this article (10.1186/s12885-017-3949-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Bin Zeng
- Department of Gastroenterology, The First Affiliated Hospital of South China University, Hengyang, 421001, China
| | - Wei Shi
- Department of Gastroenterology, The People's Hospital of Yangxin County, Yangxin, 435200, China
| | - Gao Tan
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, 1838 N. Guangzhou Ave, Guangzhou, 510515, China.
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40
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Zhang X, Li P, Ding Z, Wang H, Wang J, Han L, Ding S. The putative tumor suppressor, miR-199a, regulated by Snail, modulates clear cell renal cell carcinoma aggressiveness by repressing ROCK1. Onco Targets Ther 2017; 11:103-112. [PMID: 29343969 PMCID: PMC5749572 DOI: 10.2147/ott.s147184] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background Aberrant expression of miR-199a has been frequently reported in cancer studies; however, its role in renal cell carcinoma (RCC) has not been examined in detail. Results Here, we showed that miR-199a was downregulated in RCC and associated with poor prognostic phenotype. Using luciferase and western blot assays we identified that Rho-associated coiled coil-containing protein kinases 1 (ROCK1) was a direct target gene for miR-199a. miR-199a regulated proliferation, invasion, and apoptosis of clear cell renal cell carcinoma (ccRCC) cells by modulating ROCK1 expression. Interestingly, we also found that miR-199a was modulated by snail in ccRCC cells. Snail elevated ROCK1 expression by repressing miR-199a activity. Conclusion Altogether, our results identify a crucial tumor suppressive role of miR-199a in the progression of ccRCC and suggest that miR-199a might be an anticancer therapeutic target for ccRCC patients.
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Affiliation(s)
- Xiao Zhang
- Department of Oncology, Affiliated Hospital of Jining Medical University, Jining, Shandong
| | - Peng Li
- Department of Oncology, Affiliated Hospital of Jining Medical University, Jining, Shandong
| | - Zhen Ding
- Department of Oncology, Affiliated Hospital of Jining Medical University, Jining, Shandong
| | - Huili Wang
- Department of Oncology, Affiliated Hospital of Jining Medical University, Jining, Shandong
| | - Junye Wang
- Department of Oncology, Affiliated Hospital of Jining Medical University, Jining, Shandong
| | - Lei Han
- Department of Oncology, Affiliated Hospital of Jining Medical University, Jining, Shandong
| | - Shangwei Ding
- Department of Ultrasound, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan, Guangdong, China
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41
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Mencke R, Olauson H, Hillebrands JL. Effects of Klotho on fibrosis and cancer: A renal focus on mechanisms and therapeutic strategies. Adv Drug Deliv Rev 2017; 121:85-100. [PMID: 28709936 DOI: 10.1016/j.addr.2017.07.009] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 06/28/2017] [Accepted: 07/07/2017] [Indexed: 12/21/2022]
Abstract
Klotho is a membrane-bound protein predominantly expressed in the kidney, where it acts as a permissive co-receptor for Fibroblast Growth Factor 23. In its shed form, Klotho exerts anti-fibrotic effects in several tissues. Klotho-deficient mice spontaneously develop fibrosis and Klotho deficiency exacerbates the disease progression in fibrotic animal models. Furthermore, Klotho overexpression or supplementation protects against fibrosis in various models of renal and cardiac fibrotic disease. These effects are mediated at least partially by the direct inhibitory effects of soluble Klotho on TGFβ1 signaling, Wnt signaling, and FGF2 signaling. Soluble Klotho, as present in the circulation, appears to be the primary mediator of anti-fibrotic effects. Similarly, through inhibition of the TGFβ1, Wnt, FGF2, and IGF1 signaling pathways, Klotho also inhibits tumorigenesis. The Klotho promoter gene is generally hypermethylated in cancer, and overexpression or supplementation of Klotho has been found to inhibit tumor growth in various animal models. This review focuses on the protective effects of soluble Klotho in inhibiting renal fibrosis and fibrosis in distant organs secondary to renal Klotho deficiency. We also discuss the structure-function relationships of Klotho domains and biological effects in the context of potential targeted treatment strategies.
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Affiliation(s)
- Rik Mencke
- Department of Pathology and Medical Biology (Division of Pathology), University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Hannes Olauson
- Department of Clinical Science, Intervention and Technology (Division of Renal Medicine), Karolinska Institutet, Stockholm, Sweden
| | - Jan-Luuk Hillebrands
- Department of Pathology and Medical Biology (Division of Pathology), University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
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42
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Mencke R, Harms G, Moser J, van Meurs M, Diepstra A, Leuvenink HG, Hillebrands JL. Human alternative Klotho mRNA is a nonsense-mediated mRNA decay target inefficiently spliced in renal disease. JCI Insight 2017; 2:94375. [PMID: 29046474 DOI: 10.1172/jci.insight.94375] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 09/14/2017] [Indexed: 12/11/2022] Open
Abstract
Klotho is a renal protein involved in phosphate homeostasis, which is downregulated in renal disease. It has long been considered an antiaging factor. Two Klotho gene transcripts are thought to encode membrane-bound and secreted Klotho. Indeed, soluble Klotho is detectable in bodily fluids, but the relative contributions of Klotho secretion and of membrane-bound Klotho shedding are unknown. Recent advances in RNA surveillance reveal that premature termination codons, as present in alternative Klotho mRNA (for secreted Klotho), prime mRNAs for degradation by nonsense-mediated mRNA decay (NMD). Disruption of NMD led to accumulation of alternative Klotho mRNA, indicative of normally continuous degradation. RNA IP for NMD core factor UPF1 resulted in enrichment for alternative Klotho mRNA, which was also not associated with polysomes, indicating no active protein translation. Alternative Klotho mRNA transcripts colocalized with some P bodies, where NMD transcripts are degraded. Moreover, we could not detect secreted Klotho in vitro. These results suggest that soluble Klotho is likely cleaved membrane-bound Klotho only. Furthermore, we found that, especially in acute kidney injury, splicing of the 2 mRNA transcripts is dysregulated, which was recapitulated by various noxious stimuli in vitro. This likely constitutes a novel mechanism resulting in the downregulation of membrane-bound Klotho.
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Affiliation(s)
- Rik Mencke
- Department of Pathology and Medical Biology (Division of Pathology), University of Groningen, University Medical Center Groningen (UMCG), Groningen, The Netherlands.,The NIGRAM consortium detailed in the Supplemental Acknowledgments
| | - Geert Harms
- Department of Pathology and Medical Biology (Division of Pathology), University of Groningen, University Medical Center Groningen (UMCG), Groningen, The Netherlands.,The NIGRAM consortium detailed in the Supplemental Acknowledgments
| | - Jill Moser
- Department of Intensive Care Medicine.,Department of Pathology and Medical Biology (Division of Medical Biology), and
| | - Matijs van Meurs
- Department of Intensive Care Medicine.,Department of Pathology and Medical Biology (Division of Medical Biology), and
| | - Arjan Diepstra
- Department of Pathology and Medical Biology (Division of Pathology), University of Groningen, University Medical Center Groningen (UMCG), Groningen, The Netherlands
| | - Henri G Leuvenink
- Department of Surgery (Division of Experimental Surgery), University of Groningen, UMCG, Groningen, The Netherlands
| | - Jan-Luuk Hillebrands
- Department of Pathology and Medical Biology (Division of Pathology), University of Groningen, University Medical Center Groningen (UMCG), Groningen, The Netherlands.,The NIGRAM consortium detailed in the Supplemental Acknowledgments
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43
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Hao NB, He YF, Li XQ, Wang K, Wang RL. The role of miRNA and lncRNA in gastric cancer. Oncotarget 2017; 8:81572-81582. [PMID: 29113415 PMCID: PMC5655310 DOI: 10.18632/oncotarget.19197] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 06/20/2017] [Indexed: 12/14/2022] Open
Abstract
Gastric cancer is one of the most common cancers and has the highest mortality rate worldwide. It is worthwhile to explore the mechanism of gastric cancer progression. An increasing number of studies have found that non-coding RNAs including miRNA and lncRNA play important roles in gastric cancer progression. This review summarized the role of ectopic miRNA in gastric cancer proliferation, growth, migration, invasion and apoptosis. Meantime, aberrantly expressed miRNA also received a great deal of attention as potential biomarker for gastric cancer diagnosis and therapy. Over the last decade, lncRNA was considered to regulate gastric cancer progression at the transcript and post-transcript level. At the transcript level, lncRNA induced gastric cancer progression by changing chromatin modification and mRNA stabilization to regulate mRNA and miRNA expression. Furthermore, lncRNA regulated gastric cancer progression by completely combining with miRNA to produce ceRNA or promote protein stabilization at the post-transcript level. Greater attention of miRNA and lncRNA in gastric cancer can provide new insight of mechanism of cancer development and may be acted as a new anticancer target.
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Affiliation(s)
- Ning-Bo Hao
- Department of Gastroenterology, General Hospital of the PLA Rocket Force, Beijing, China
| | - Ya-Fei He
- Intensive Medical Center, 302 Hospital of PLA, Beijing, China
| | - Xiao-Qin Li
- Department of Ophthalmology, General Hospital of the PLA Rocket Force, Beijing, China
| | - Kai Wang
- New Era Stoke Care and Research Institute, General Hospital of the PLA Rocket Force, Beijing, China
| | - Rui-Ling Wang
- Department of Gastroenterology, General Hospital of the PLA Rocket Force, Beijing, China
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44
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Mao Z, Fan L, Yu Q, Luo S, Wu X, Tang J, Kang G, Tang L. Abnormality of Klotho Signaling Is Involved in Polycystic Ovary Syndrome. Reprod Sci 2017; 25:372-383. [PMID: 28673204 DOI: 10.1177/1933719117715129] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This study investigated the involvement of the klotho-associated signaling in the apoptosis of granulosa cells (GCs) from the ovaries of patients with polycystic ovary syndrome (PCOS) and PCOS animals. Primary GCs were obtained from 26 healthy women and 43 women with PCOS. The PCOS animal model was established by the injection of dehydroepiandrosterone (DHEA). Klotho protein and associated microRNA expression in human primary GCs and rats' ovarian tissues were measured by Western blot and real-time polymerase chain reaction, respectively. Results showed that significantly lower miR-126-5p and miR-29a-5p microRNA expressions, higher klotho protein expression, lower insulin growth factor 1 (IGF-1R) and Wnt family member 1 (Wnt1) protein expressions, and lower Akt phosphorylation at Ser473 and Thr308 residues were observed in the GCs from patients with PCOS and the ovarian tissues of PCOS rats compared to that in GCs from healthy women and ovarian tissues of normal control rats, respectively. Knockdown of klotho gene expression normalized IGF-1R and Wnt1 protein expressions and Akt phosphorylation in GCs from patients with PCOS and the ovarian tissues from PCOS rats; it also blocked the effects of insulin on apoptosis and proliferation in GCs from patients with PCOS and inhibited caspase-3 activity in ovarian tissues of PCOS rats. Knockdown of klotho gene expression increased the pregnancy rate in DHEA-treated female rats and increased the body weight of their newborns through normalizing the ovarian function and decreasing the formation of cystic follicles. In conclusion, the miR-126-5p, miR-29a-5p/klotho/insulin-IGF-1, Wnt, and Akt signal pathway may be involved in the apoptosis of GCs and subsequent development of PCOS.
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Affiliation(s)
- Zenghui Mao
- 1 Reproductive Medicine Center, Reproductive Medicine Hospital of Hunan Province, Changsha, Hunan, People's Republic of China
| | - Liqing Fan
- 2 Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha, Hunan, People's Republic of China
| | - Qiao Yu
- 1 Reproductive Medicine Center, Reproductive Medicine Hospital of Hunan Province, Changsha, Hunan, People's Republic of China
| | - Shuwei Luo
- 1 Reproductive Medicine Center, Reproductive Medicine Hospital of Hunan Province, Changsha, Hunan, People's Republic of China
| | - Xianling Wu
- 1 Reproductive Medicine Center, Reproductive Medicine Hospital of Hunan Province, Changsha, Hunan, People's Republic of China
| | - Jun Tang
- 1 Reproductive Medicine Center, Reproductive Medicine Hospital of Hunan Province, Changsha, Hunan, People's Republic of China
| | - Gehua Kang
- 1 Reproductive Medicine Center, Reproductive Medicine Hospital of Hunan Province, Changsha, Hunan, People's Republic of China
| | - Le Tang
- 1 Reproductive Medicine Center, Reproductive Medicine Hospital of Hunan Province, Changsha, Hunan, People's Republic of China
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45
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Olauson H, Mencke R, Hillebrands JL, Larsson TE. Tissue expression and source of circulating αKlotho. Bone 2017; 100:19-35. [PMID: 28323144 DOI: 10.1016/j.bone.2017.03.043] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 03/15/2017] [Accepted: 03/16/2017] [Indexed: 12/16/2022]
Abstract
αKlotho (Klotho), a type I transmembrane protein and a coreceptor for Fibroblast Growth Factor-23, was initially thought to be expressed only in a limited number of tissues, most importantly the kidney, parathyroid gland and choroid plexus. Emerging data may suggest a more ubiquitous Klotho expression pattern which has prompted reevaluation of the restricted Klotho paradigm. Herein we systematically review the evidence for Klotho expression in various tissues and cell types in humans and other mammals, and discuss potential reasons behind existing conflicting data. Based on current literature and tissue expression atlases, we propose a classification of tissues into high, intermediate and low/absent Klotho expression. The functional relevance of Klotho in organs with low expression levels remain uncertain and there is currently limited data on a role for membrane-bound Klotho outside the kidney. Finally, we review the evidence for the tissue source of soluble Klotho, and conclude that the kidney is likely to be the principal source of circulating Klotho in physiology.
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Affiliation(s)
- Hannes Olauson
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
| | - Rik Mencke
- Division of Pathology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan-Luuk Hillebrands
- Division of Pathology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Tobias E Larsson
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
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46
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Ahmadi A, Khansarinejad B, Hosseinkhani S, Ghanei M, Mowla SJ. miR-199a-5p and miR-495 target GRP78 within UPR pathway of lung cancer. Gene 2017; 620:15-22. [PMID: 28363780 DOI: 10.1016/j.gene.2017.03.032] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/22/2017] [Accepted: 03/24/2017] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Non-small cell lung cancer (NSCLC) is the most common subtype of lung cancer. One of the signal transduction pathways related to NSCLC is Unfolded Protein Response (UPR), which is mainly regulated by GRP78 (HSPA5, Gene ID: 3309). The aim of this study was to employ bioinformatics tools to predict microRNAs (miRNAs) affecting GRP78 expression, experimentally validate interaction of these miRNAs with GRP78 and also evaluating the expression correlation of GRP78 and its predicted miRNAs in clinical samples. MATERIALS AND METHODS Various software were used to predict miRNAs that simultaneously target all upstream and downstream components of GRP78 in the UPR, as well as the main components of PI3K/AKT, MAPK, ErbB and calcium pathways. For experimental analysis, 36 pairs of Formalin-Fixed Paraffin-Embedded (FFPE) lung tumor and non-tumor tissue samples were obtained. Additionally, A549 and QU-DB lung cancer cell lines were used for expression determination of GRP78 and its predicted targeting miRNAs. We also employed a luciferase assay to evaluate interactions between candidate miRNAs with the 3'-UTR of GRP78. RESULTS hsa-miR-495 and hsa-miR-199-5p were chosen based on several criteria including thermodynamic binding features of miRNAs to the target transcripts, number of recognition sites, and conservation of binding sites within the 3'-UTR of GRP78. RT-qPCR data revealed a significant up-regulation of GRP78 (3.87 times, P=0.002) and down-regulation of miR-199a-5p (0.13 times, P=0.0001) and miR-495 (0.085 times, P=0.0001) in tumor samples. Luciferase assay confirmed an interaction of hsa-miR-199a-5p and hsa-miR-495 with the 3'-UTR of GRP78 transcript. In addition, over-expression and competitive inhibition of the aforementioned miRNAs, significantly altered the expression of GRP78 and spliced XBP1 level. CONCLUSION Our data revealed a significant up-regulation of GRP78 and a concomitant down-regulation of miR-495 and miR-199a-5p in NSCLC. Accordingly, our data suggest a causative role for miR-199-5p and miR-495 in tumorgenesis of lung and probably other cancer types.
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Affiliation(s)
- Azam Ahmadi
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Behzad Khansarinejad
- Infectious Diseases Research Center (IDRC), Department of Microbiology and Immunology, Arak University of Medical Sciences, Arak, Iran
| | - Saman Hosseinkhani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mostafa Ghanei
- Research Center of Chemical Injuries, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Seyed Javad Mowla
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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MicroRNA-199a-5p promotes tumour growth by dual-targeting PIAS3 and p27 in human osteosarcoma. Sci Rep 2017; 7:41456. [PMID: 28120918 PMCID: PMC5264164 DOI: 10.1038/srep41456] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 12/19/2016] [Indexed: 02/06/2023] Open
Abstract
Osteosarcoma (OS) is the most common primary bone malignancy and remains a leading cause of cancer-related deaths in adolescents. Emerging evidence indicates that microRNAs (miRNAs) are correlated with clinical and biological characteristics of OS. However, the involvement of miR-199a-5p in OS development remains unclear. In this study, we examined the function of miR-199a-5p in vitro and in vivo. The results showed that miR-199a-5p was significantly up-regulated in OS patient tissues and cells. The inhibition of miR-199a-5p led to a significant decrease in cell proliferation and tumour growth. We further demonstrated that miR-199a-5p could directly bind to the 3′UTRs of the mRNA of both PIAS3 and p27 and mediate a decrease in the protein levels of PIAS3 and p27, thereby stimulating STAT3 activation and cell cycle progression in OS cells. Rescue experiments of PIAS3 and p27 further revealed that PIAS3 and p27 were functional targets of miR-199a-5p. Moreover, enhancing the expressions of both PIAS3 and p27 using miR-199a-5p-targeted inhibitors in an OS xenograft model was shown to be a promising approach for OS clinical therapy. Our findings indicate that the pathway of miR-199a-5p targeting both PIAS3 and p27 is a possible mechanism that contributes to tumour growth in OS.
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Dalton GD, Xie J, An SW, Huang CL. New Insights into the Mechanism of Action of Soluble Klotho. Front Endocrinol (Lausanne) 2017; 8:323. [PMID: 29250031 PMCID: PMC5715364 DOI: 10.3389/fendo.2017.00323] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 11/02/2017] [Indexed: 12/31/2022] Open
Abstract
The klotho gene encodes a type I single-pass transmembrane protein that contains a large extracellular domain, a membrane spanning segment, and a short intracellular domain. Klotho protein exists in several forms including the full-length membrane form (mKl) and a soluble circulating form [soluble klotho (sKl)]. mKl complexes with fibroblast growth factor receptors to form coreceptors for FGF23, which allows it to participate in FGF23-mediated signal transduction and regulation of phosphate and calcium homeostasis. sKl is present in the blood, urine, and cerebrospinal fluid where it performs a multitude of functions including regulation of ion channels/transporters and growth factor signaling. How sKl exerts these pleiotropic functions is poorly understood. One hurdle in understanding sKl's mechanism of action as a "hormone" has been the inability to identify a receptor that mediates its effects. In the body, the kidneys are a major source of sKl and sKl levels decline during renal disease. sKl deficiency in chronic kidney disease makes the heart susceptible to stress-induced injury. Here, we summarize the current knowledge of mKl's mechanism of action, the mechanistic basis of sKl's protective, FGF23-independent effects on the heart, and provide new insights into the mechanism of action of sKl focusing on recent findings that sKl binds sialogangliosides in membrane lipid rafts to regulate growth factor signaling.
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Affiliation(s)
- George D. Dalton
- Department of Medicine, Division of Gastroenterology, Duke University Medical Center, Durham, NC, United States
| | - Jian Xie
- Department of Internal Medicine, Division of Nephrology and Hypertension, University of Iowa Carver College of Medicine, Iowa City, IA, United States
| | - Sung-Wan An
- Department of Internal Medicine, Division of Nephrology and Hypertension, University of Iowa Carver College of Medicine, Iowa City, IA, United States
| | - Chou-Long Huang
- Department of Internal Medicine, Division of Nephrology and Hypertension, University of Iowa Carver College of Medicine, Iowa City, IA, United States
- *Correspondence: Chou-Long Huang,
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Thankam FG, Boosani CS, Dilisio MF, Dietz NE, Agrawal DK. MicroRNAs Associated with Shoulder Tendon Matrisome Disorganization in Glenohumeral Arthritis. PLoS One 2016; 11:e0168077. [PMID: 27992561 PMCID: PMC5161352 DOI: 10.1371/journal.pone.0168077] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 11/27/2016] [Indexed: 12/27/2022] Open
Abstract
The extracellular matrix (ECM) provides core support which is essential for the cell and tissue architectural development. The role of ECM in many pathological conditions has been well established and ECM-related abnormalities leading to serious consequences have been identified. Though much has been explored in regards to the role of ECM in soft tissue associated pathologies, very little is known about its role in inflammatory disorders in tendon. In this study, we performed microRNA (miRNA) expression analysis in the long head of the human shoulder biceps tendon to identify key genes whose expression was altered during inflammation in patients with glenohumeral arthritis. We identified differential regulation of matrix metalloproteinases (MMPs) that could be critical in collagen type replacement during tendinopathy. The miRNA profiling showed consistent results between the groups and revealed significant changes in the expression of seven different miRNAs in the inflamed tendons. Interestingly, all of these seven miRNAs were previously reported to have either a direct or indirect role in regulating the ECM organization in other pathological disorders. In addition, these miRNAs were also found to alter the expression levels of MMPs, which are the key matrix degrading enzymes associated with ECM-related abnormalities and pathologies. To our knowledge, this is the first report which identifies specific miRNAs associated with inflammation and the matrix reorganization in the tendons. Furthermore, the findings also support the potential role of these miRNAs in altering the collagen type ratio in the tendons during inflammation which is accompanied with differential expression of MMPs.
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Affiliation(s)
- Finosh G. Thankam
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, Nebraska, United States of America
| | - Chandra S. Boosani
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, Nebraska, United States of America
| | - Matthew F. Dilisio
- Department of Orthopedic Surgery, Creighton University School of Medicine, Omaha, Nebraska, United States of America
| | - Nicholas E. Dietz
- Department of Pathology, Creighton University School of Medicine, Omaha, Nebraska, United States of America
| | - Devendra K. Agrawal
- Department of Clinical & Translational Science, Creighton University School of Medicine, Omaha, Nebraska, United States of America
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Zhou M, Wang S, Hu L, Liu F, Zhang Q, Zhang D. miR-199a-5p suppresses human bladder cancer cell metastasis by targeting CCR7. BMC Urol 2016; 16:64. [PMID: 27814720 PMCID: PMC5097416 DOI: 10.1186/s12894-016-0181-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/20/2016] [Indexed: 12/19/2022] Open
Abstract
Background C-C chemokine receptor type 7 (CCR7) overexpression correlated with lymphatic metastasis and poor prognosis is a major obstacle to bladder cancer treatment. Recent studies have revealed that miR-199a-5p was significantly abnormal expressed in several solid tumors and functioned as oncogene or tumor suppressor. This study was aimed to further investigate the effects of miR-199a-5p on the cell metastasis mediated by CCR7 in bladder cancer. Methods Quantitative Real Time PCR (qRT-PCR) was firstly performed to identified the expression of miR-199a-5p and CCR7 in human bladder cancer samples and cell lines. Following that, the effects of miR-199a-5p on cell migratory and invasive activities were assessed by wound healing and Matrigel invasion assays, respectively. Finally, luciferase reporter assay and western blot were employed to investigate whether CCR7 could directly interact with miR-199a-5p. Results miR-199a-5p downregulation and CCR7 upregulation were firstly observed in bladder cancer samples and cell lines. In addition, both miR-199a-5p downregulation and CCR7 upregulation were significantly involved in bladder cancer clinicopathological features. Moreover, overexpression of miR-199a-5p could inhibit baldder cancer cell migration and invasion. miR-199a-5p was confirmed to be able to target the 3′ untranslated region (UTR) of CCR7 and regulate the expression of CCR7, Matrix metalloproteinases 9 (MMP-9) and Epithelial-Mesenchymal Transition (EMT)-related proteins. Conclusion Our findings added newer insights into the multifaceted role played by miR-199a-5p/CCR7 in bladder cancer, prompting for the first time this miRNA/chemokine axis that regulates cell metastasis. The results strongly supported miR-199a-5p as a potential therapeutic agent and diagnostic marker of bladder cancer.
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Affiliation(s)
- Mi Zhou
- Department of Urology, Zhejiang Provincial People's Hospital, 158 Shangtang Road, Hangzhou, Zhejiang Province, 310014, People's Republic of China
| | - Shuai Wang
- Department of Urology, Zhejiang Provincial People's Hospital, 158 Shangtang Road, Hangzhou, Zhejiang Province, 310014, People's Republic of China
| | - Linyi Hu
- Department of Urology, Zhejiang Provincial People's Hospital, 158 Shangtang Road, Hangzhou, Zhejiang Province, 310014, People's Republic of China
| | - Feng Liu
- Department of Urology, Zhejiang Provincial People's Hospital, 158 Shangtang Road, Hangzhou, Zhejiang Province, 310014, People's Republic of China
| | - Qi Zhang
- Department of Urology, Zhejiang Provincial People's Hospital, 158 Shangtang Road, Hangzhou, Zhejiang Province, 310014, People's Republic of China.
| | - Dahong Zhang
- Department of Urology, Zhejiang Provincial People's Hospital, 158 Shangtang Road, Hangzhou, Zhejiang Province, 310014, People's Republic of China.
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