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Retraction: miR-3607-3p suppresses non-small cell lung cancer (NSCLC) by targeting TGFBR1 and CCNE2. PLoS Genet 2024; 20:e1011270. [PMID: 38713643 DOI: 10.1371/journal.pgen.1011270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2024] Open
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2
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Li B, Xu X, Zheng L, Jiang X, Lin J, Zhang G. MiR-590-5p promotes cisplatin resistance via targeting hMSH2 in ovarian cancer. Mol Biol Rep 2023; 50:6819-6827. [PMID: 37392283 DOI: 10.1007/s11033-023-08599-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 06/15/2023] [Indexed: 07/03/2023]
Abstract
OBJECTIVE The mechanisms of ovarian cancer generate chemotherapy resistance are still unclear. This study aimed to explore the role of microRNA (miR)-590-5p in regulating hMSH2 expression and cisplatin resistance in ovarian cancer. METHODS MiR-590-5p was identified as a regulator of hMSH2 with miRDB database and Target Scan database. Then cisplatin sensitive cell line (SKOV3) and resistant cell line (SKOV3-DDP) of ovarian cancer were cultured for cell functional assay and molecular biology assay. The expression levels of MiR-590-5p and hMSH2 were compared between the two cell lines. Dual luciferase reporter assay was used to verify the targeted regulatory relationship between miR-590-5p and hMSH2. CCK-8 assay and cell apoptosis assay were utilized to assess the role of MiR-590-5p and hMSH2 in cell viability under cisplatin. RESULTS The expression of hMSH2 was significantly decreased, and miR-590-5p was significantly up-regulated in SKOV3-DDP. Up-regulation of hMSH2 weakened the viability of SKOV3 and SKOV3-DDP cell under cisplatin. Transfection with miR‑590-5p mimics reduced the expression of hMSH2 and enhanced the viability of ovarian cancer cells under cisplatin, whereas inhibition of miR‑590-5p increased the expression of hMSH2, and decreased ovarian cancer cells' viability under cisplatin. Furthermore, luciferase reporter assay showed that hMSH2 was a direct target of miR-590-5p. CONCLUSION The present study demonstrates that miR‑590-5p promotes cisplatin resistance of ovarian cancer via negatively regulating hMSH2 expression. Inhibition of miR‑590-5p decreases ovarian cancer cells' viability under cisplatin. Thus miR‑590-5p and hMSH2 may serve as therapeutic targets for cisplatin resistant ovarian cancer.
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Affiliation(s)
- Bing Li
- Department of Medical Oncology, the Affiliated Hospital of Putian University, Putian, 351100, Fujian province, China
| | - Xuejie Xu
- Department of Medical Oncology, the Affiliated Hospital of Putian University, Putian, 351100, Fujian province, China
| | - Linlin Zheng
- Department of Medical Oncology, the Affiliated Hospital of Putian University, Putian, 351100, Fujian province, China
| | - Xiaojie Jiang
- Department of Hepatobiliary Surgery, the Affiliated Hospital of Putian University, Putian, 351100, Fujian province, China
| | - Jing Lin
- Department of Pathology, the Affiliated Hospital of Putian University, Putian, 351100, Fujian province, China
| | - Guoliang Zhang
- Department of Thyroid Surgery, the Affiliated Hospital of Putian University, Putian, 351100, Fujian province, China.
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Akrami H, Gholami H, Fattahi MR, Zeraatiannejad M. Effect of miR-4270 Suppression on Migration in Hepatocellular Carcinoma Cell Line (HepG2). IRANIAN BIOMEDICAL JOURNAL 2023; 27:167-72. [PMID: 37430248 PMCID: PMC10507290 DOI: 10.61186/ibj.3923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 05/23/2023] [Indexed: 12/17/2023]
Abstract
Background Liver transplantation and surgical resection are two major strategies for treatment of hepatocellular carcinoma (HCC) patients. One approach to treating HCC is the suppression of metastasis to other tissues. Herein, we aimed to study the effect of miR-4270 inhibitor on migration of HepG2 cells as well as activity of matrix metalloproteinase (MMP) these cells in order to find a strategy to suppress metastasis in future. Methods HepG2 cells were treated with 0, 10, 20, 30, 40, 50, 60, 70, 80, and 90 nM of miR-4270 inhibitor, and then the cell viability was measured by trypan blue staining. Afterwards, cell migration and MMP activity of HepG2 cells were assessed by wound healing assay and zymography, respectively. The MMP gene expression was determined by real-time reverse transcription polymerase chain reaction. Results Results showed that miR-4270 inhibitor decreased the cell viability of HepG2 cells in a concentration-dependent manner. Also, inhibition of the miR-4270 reduced invasion, MMP activity, and expression of MMP genes in HepG2 cells, respectively. Conclusion Our findings suggest that miR-4270 inhibitor decreases in vitro migration, which could help find a new approach for HCC therapy patients.
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Affiliation(s)
- Hassan Akrami
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hanieh Gholami
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Fattahi
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Akrami H, Gholami H, Fattahi MR, Zeraatiannejad M. Effect of miR-4270 Suppression on Migration in Hepatocellular Carcinoma Cell Line (HepG2). IRANIAN BIOMEDICAL JOURNAL 2023; 27:167-72. [PMID: 37430248 PMCID: PMC10507290 DOI: 10.52547/ibj.3923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 05/23/2023] [Indexed: 07/12/2023]
Abstract
Background Liver transplantation and surgical resection are two major strategies for treatment of hepatocellular carcinoma (HCC) patients. One approach to treating HCC is the suppression of metastasis to other tissues. Herein, we aimed to study the effect of miR-4270 inhibitor on migration of HepG2 cells as well as activity of matrix metalloproteinase (MMP) these cells in order to find a strategy to suppress metastasis in future. Methods HepG2 cells were treated with 0, 10, 20, 30, 40, 50, 60, 70, 80, and 90 nM of miR-4270 inhibitor, and then the cell viability was measured by trypan blue staining. Afterwards, cell migration and MMP activity of HepG2 cells were assessed by wound healing assay and zymography, respectively. The MMP gene expression was determined by real-time reverse transcription polymerase chain reaction. Results Results showed that miR-4270 inhibitor decreased the cell viability of HepG2 cells in a concentration-dependent manner. Also, inhibition of the miR-4270 reduced invasion, MMP activity, and expression of MMP genes in HepG2 cells, respectively. Conclusion Our findings suggest that miR-4270 inhibitor decreases in vitro migration, which could help find a new approach for HCC therapy patients.
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Affiliation(s)
- Hassan Akrami
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hanieh Gholami
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Fattahi
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Akrami H, Shamsdin SA, Nikmanesh Y, Fattahi M. Effect of Mir-4270 Inhibitor and Mimic on Viability and Stemness in Gastric Cancer Stem-Like Cells Derived from MKN-45 Cell Line. IRANIAN BIOMEDICAL JOURNAL 2023; 27:100-7. [PMID: 37070617 PMCID: PMC10314761 DOI: 10.61186/ibj.3851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/18/2022] [Indexed: 12/17/2023]
Abstract
Background MicroRNAs (miRNAs) are significant regulatory factors in stem cell proliferation, and change in miRNA expression influences the cancer stem cell viability and gene expression. Herein, we evaluated the effect of the hsa-miR-4270 inhibitor and its mimic on the expression of stem cell markers in gastric cancer (GC) stem-like cells. Methods GC stem-like cells were isolated from the MKN-45 cell line by a non-adherent surface system. The cells were confirmed by differentiation assays using dexamethasone and insulin as adipogenesis-inducing agents and also Staurosporine as a neural-inducing agent. Isolated GC stem-like cells were treated with different concentrations (0, 15, 20, 25, 30, 40, 50, and 60 nM) of hsa-miR-4270 inhibitor and its mimic. The quantity of cell viability was determined by trypan blue method. Transcription of the stem cell marker genes, including CD44, OCT3/4, SOX2, Nanog, and KLF4, was evaluated by real-time RT-PCR. Results The results showed that GC stem-like cells were differentiated into both adipose cells using dexamethasone and insulin and neural cells by Staurosporine. Treatment of GC stem-like cells with hsa-miR-4270 inhibitor decreased cell viability and downregulated OCT3/4, CD44, and Nanog to 86%, 79%, and 91% respectively. Also, SOX2 and KLF4 were overexpressed to 8.1- and 1.94-folds, respectively. However, hsa-miR-4270 mimic had opposite effects on the cell viability and gene expression of the stem cell markers. Conclusion The effect of hsa-miR-4270 inhibitor and its mimic on the expression of the stem cell markers in GCSCs indicated that hsa-miR-4270 stimulates the stemness property of GCSCs, likely through stimulating the development of gastric stem cells.
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Affiliation(s)
- Hassan Akrami
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Matched Analyses of Brain Metastases versus Primary Non-Small Cell Lung Cancer Reveal a Unique microRNA Signature. Int J Mol Sci 2022; 24:ijms24010193. [PMID: 36613642 PMCID: PMC9820685 DOI: 10.3390/ijms24010193] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
Distant spreading of tumor cells to the central nervous system in non-small cell lung cancer (NSCLC) occurs frequently and poses major clinical issues due to limited treatment options. RNAs displaying differential expression in brain metastasis versus primary NSCLC may explain distant tumor growth and may potentially be used as therapeutic targets. In this study, we conducted systematic microRNA expression profiling from tissue biopsies of primary NSCLC and brain metastases from 25 patients. RNA analysis was performed using the nCounter Human v3 miRNA Expression Assay, NanoString technologies, followed by differential expression analysis and in silico target gene pathway analysis. We uncovered a panel of 11 microRNAs with differential expression and excellent diagnostic performance in brain metastasis versus primary NSCLC. Five microRNAs were upregulated in brain metastasis (miR-129-2-3p, miR-124-3p, miR-219a-2-3p, miR-219a-5p, and miR-9-5p) and six microRNAs were downregulated in brain metastasis (miR-142-3p, miR-150-5p, miR-199b-5p, miR-199a-3p, miR-199b-5p, and miR-199a-5p). The differentially expressed microRNAs were predicted to converge on distinct target gene networks originating from five to twelve core target genes. In conclusion, we uncovered a unique microRNA profile linked to two target gene networks. Our results highlight the potential of specific microRNAs as biomarkers for brain metastasis in NSCLC and indicate plausible mechanistic connections.
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Retraction: Molecular predictors of brain metastasis-related microRNAs in lung adenocarcinoma. PLoS Genet 2022; 18:e1010552. [PMID: 36525402 PMCID: PMC9757565 DOI: 10.1371/journal.pgen.1010552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Zhang L, Liang J, Han Z, Wang L, Liang J, Zhang S. Micro-ribonucleic acids (miRNAs) and a proteomic profile in lung adenocarcinoma cases with brain metastasis. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:1389. [PMID: 36660652 PMCID: PMC9843405 DOI: 10.21037/atm-22-5703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 12/16/2022] [Indexed: 01/01/2023]
Abstract
Background Brain metastasis (BM) is the main cause of death of individuals with lung adenocarcinoma (LAC). Biomarkers with high sensitivity and specificity for the early detection and treatment of BM of LAC urgently need to be identified. In this study, we analyzed the pathogenesis of LAC-induced BM by detecting micro-ribonucleic acid (miRNA) and proteome expression differences between primary LAC lesion and BM tissue specimens to identify biomarkers of LAC-associated BM and develop potential therapeutic targets. Methods The miRNA and protein profiles of non-metastatic primary LAC and BM cases were examined to further explore the mechanism of BM. The roles and interactions of differential miRNAs and proteins were subject to Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. The interactions of differential miRNAs and proteins were analyzed by R software and depicted using Cytoscape. Results Compared to the LAC tissue specimens, 16 and 4 miRNAs showed increased and reduced levels, respectively, in the BM tissue specimens, and 53 proteins were upregulated, and 35 proteins were downregulated. The enrichment pathway analysis showed the nuclear factor kappa B (NF-κB) signaling and the primary immunodeficiency pathways played important roles in the pathogenetic mechanisms of BM in LAC. Conclusions This study extended understandings of the regulatory network of miRNAs and proteins and provided novel insights into the pathogenic mechanisms of BM in LAC at the miRNA and protein levels.
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Affiliation(s)
- Lingling Zhang
- Department of Oncology, Peking University International Hospital, Beijing, China
| | - Jianfeng Liang
- Department of Neurosurgery, Peking University International Hospital, Beijing, China
| | - Zhiyi Han
- Department of Thoracic Surgery, Peking University International Hospital, Beijing, China
| | - Lihua Wang
- Department of Pathology, Peking University International Hospital, Beijing, China
| | - Jun Liang
- Department of Oncology, Peking University International Hospital, Beijing, China
| | - Shucai Zhang
- Department of Medical Oncology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
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Olgun G, Gopalan V, Hannenhalli S. miRSCAPE - inferring miRNA expression from scRNA-seq data. iScience 2022; 25:104962. [PMID: 36060076 PMCID: PMC9437856 DOI: 10.1016/j.isci.2022.104962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/09/2022] [Accepted: 08/12/2022] [Indexed: 11/27/2022] Open
Abstract
Our understanding of miRNA activity at cellular resolution is thwarted by the inability of standard scRNA-seq protocols to capture miRNAs. We introduce a novel tool, miRSCAPE, to infer miRNA expression in a sample from its RNA-seq profile. We establish miRSCAPE’s accuracy in 10 tumor and normal cohorts demonstrating its superiority over alternatives. miRSCAPE accurately infers cell type-specific miRNA activities (predicted versus observed fold-difference correlation ∼0.81) in two independent scRNA-seq datasets. We apply miRSCAPE to infer miRNA activities in scRNA clusters in pancreatic and lung adenocarcinomas, as well as in 56 cell types in the human cell landscape (HCL). In pancreatic and breast cancer scRNA-seq data, miRSCAPE recapitulates miRNAs associated with stemness and epithelial-mesenchymal transition (EMT) cell states, respectively. Overall, miRSCAPE recapitulates and refines miRNA biology at cellular resolution. miRSCAPE is freely available and is easily applicable to scRNA-seq data to infer miRNA activities at cellular resolution. Novel machine learning-based tool to infer miRNA expression at single cell level Predicts miRNA activity with high accuracy in various contexts Recaps miRNAs associated with specific cellular states and suggests novel candidates Provides a general framework to predict other types of molecular data at a single cell
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Affiliation(s)
- Gulden Olgun
- Cancer Data Science Lab, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Vishaka Gopalan
- Cancer Data Science Lab, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sridhar Hannenhalli
- Cancer Data Science Lab, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Corresponding author
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Li C, Zheng H, Xiong J, Huang Y, Li H, Jin H, Ai S, Wang Y, Su T, Sun G, Xiao X, Fu T, Wang Y, Gao X, Liang P. miR-596-3p suppresses brain metastasis of non-small cell lung cancer by modulating YAP1 and IL-8. Cell Death Dis 2022; 13:699. [PMID: 35961957 PMCID: PMC9374706 DOI: 10.1038/s41419-022-05062-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 03/22/2022] [Accepted: 07/04/2022] [Indexed: 01/21/2023]
Abstract
Brain metastasis (BM) frequently occurs in advanced non-small cell lung cancer (NSCLC) and is associated with poor clinical prognosis. Due to the location of metastatic lesions, the surgical resection is limited and the chemotherapy is ineffective because of the existence of the blood brain barrier (BBB). Therefore, it is essential to enhance our understanding about the underlying mechanisms associated with brain metastasis in NSCLC. In the present study, we explored the RNA-Seq data of brain metastasis cells from the GEO database, and extracted RNA collected from primary NSCLC tumors as well as paired brain metastatic lesions followed by microRNA PCR array. Meanwhile, we improved the in vivo model and constructed a cancer stem cell-derived transplantation model of brain metastasis in mice. Our data indicated that the level of miR-596-3p is high in primary NSCLC tumors, but significantly downregulated in the brain metastatic lesion. The prediction target of microRNA suggested that miR-596-3p was considered to modulate two genes essential in the brain invasion process, YAP1 and IL-8 that restrain the invasion of cancer cells and permeability of BBB, respectively. Moreover, in vivo experiments suggested that our model mimics the clinical aspect of NSCLC and improves the success ratio of brain metastasis model. The results demonstrated that miR-596-3p significantly inhibited the capacity of NSCLC cells to metastasize to the brain. Furthermore, these finding elucidated that miR-596-3p exerts a critical role in brain metastasis of NSCLC by modulating the YAP1-IL8 network, and this miRNA axis may provide a potential therapeutic strategy for brain metastasis.
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Affiliation(s)
- Chenlong Li
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Hongshan Zheng
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Jinsheng Xiong
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Yuxin Huang
- Heilongjiang Tuomeng Technology Co.Ltd, Harbin, 150040 Heilongjiang China
| | - Haoyang Li
- grid.45672.320000 0001 1926 5090Computational Bioscience Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955 Saudi Arabia ,grid.64924.3d0000 0004 1760 5735Cancer Systems Biology Center, the China-Japan Union Hospital, Jilin University, Changchun, 130001 Jilin China ,grid.64924.3d0000 0004 1760 5735College of Computer Science and Technology, Jilin University, Changchun, 130001 Jilin China
| | - Hua Jin
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Siqi Ai
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Yingjie Wang
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Tianqi Su
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Guiyin Sun
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Xu Xiao
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Tianjiao Fu
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Yujie Wang
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
| | - Xin Gao
- grid.45672.320000 0001 1926 5090Computational Bioscience Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955 Saudi Arabia
| | - Peng Liang
- grid.412651.50000 0004 1808 3502Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin, 150001 Heilongjiang China
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Lin J, Lin W, Bai Y, Liao Y, Lin Q, Chen L, Wu Y. Identification of exosomal hsa-miR-483-5p as a potential biomarker for hepatocellular carcinoma via microRNA expression profiling of tumor-derived exosomes. Exp Cell Res 2022; 417:113232. [PMID: 35659970 DOI: 10.1016/j.yexcr.2022.113232] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 05/25/2022] [Accepted: 05/28/2022] [Indexed: 11/04/2022]
Abstract
To date, most studies of exosomes related to hepatocellular carcinoma (HCC) have used commercial cancer cell lines or patient plasma as source material. In this study, we isolated exosomes directly from HCC tissues to investigate the potential of exosomal contents as biomarkers for HCC. Exosomes were identified and verified using transmission electron microscopy, nano-flow cytometry analysis, and western blotting. Tissue-derived exosomal miRNA expression was profiled by high-throughput sequencing, and differential expression of miRNAs was validated by quantitative real-time polymerase chain reaction analysis. The diagnostic performance of differentially expressed exosomal miRNAs for HCC was evaluated by receiver operating characteristic curve analysis. Target genes of these miRNAs were verified using luciferase reporter assays, and their functions were studied through in vitro and rescue assays. In total, 225 differentially expressed exosomal miRNAs were identified in HCC samples compared with adjacent liver tissues, and some were associated with HCC tumorigenesis and progression. Comparison of the expression profiles of tissue-derived and plasma-derived exosomal miRNAs identified hsa-miR-483-5p as the only differentially expressed miRNA detected in both HCC tissue and plasma, and this was in a validation group of HCC patients. Analysis of the diagnostic performance of plasma exosomal hsa-miR-483-5p or plasma hsa-miR-483-5p found that both could differentiate HCC and non-HCC cases. In vitro ectopic miR-483-5p expression promoted HCC cell proliferation. CDK15 was confirmed to bind with miR-483-5p directly, and thus, miR-483-5p may function by downregulating CDK15. Hsa-miR-483-5p represents a potential specific and sensitive biomarker for HCC diagnosis.
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Affiliation(s)
- Jie Lin
- Department of Pathology, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, China
| | - Wansong Lin
- Laboratory of Immuno-Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, 350014, Fujian, China.
| | - Yannan Bai
- Department of Hepatobiliopancreatic Surgery, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, China
| | - Yanling Liao
- Department of Anesthesiology, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, China
| | - Qiaoyan Lin
- Department of Blood Transfusion, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, 350014, Fujian, China
| | - Lingfeng Chen
- Department of Pathology, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, China
| | - Yijuan Wu
- Department of Pathology, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, China
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Functional Screen for microRNAs Suppressing Anchorage-Independent Growth in Human Cervical Cancer Cells. Int J Mol Sci 2022; 23:ijms23094791. [PMID: 35563182 PMCID: PMC9100801 DOI: 10.3390/ijms23094791] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 04/21/2022] [Indexed: 02/04/2023] Open
Abstract
The progression of anchorage-dependent epithelial cells to anchorage-independent growth represents a critical hallmark of malignant transformation. Using an in vitro model of human papillomavirus (HPV)-induced transformation, we previously showed that acquisition of anchorage-independent growth is associated with marked (epi)genetic changes, including altered expression of microRNAs. However, the laborious nature of the conventional growth method in soft agar to measure this phenotype hampers a high-throughput analysis. We developed alternative functional screening methods using 96- and 384-well ultra-low attachment plates to systematically investigate microRNAs regulating anchorage-independent growth. SiHa cervical cancer cells were transfected with a microRNA mimic library (n = 2019) and evaluated for cell viability. We identified 84 microRNAs that consistently suppressed growth in three independent experiments. Further validation in three cell lines and comparison of growth in adherent and ultra-low attachment plates yielded 40 microRNAs that specifically reduced anchorage-independent growth. In conclusion, ultra-low attachment plates are a promising alternative for soft-agar assays to study anchorage-independent growth and are suitable for high-throughput functional screening. Anchorage independence suppressing microRNAs identified through our screen were successfully validated in three cell lines. These microRNAs may provide specific biomarkers for detecting and treating HPV-induced precancerous lesions progressing to invasive cancer, the most critical stage during cervical cancer development.
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孙 爽, 门 玉, 惠 周. [Research Progress on Risk Factors of Brain Metastasis in Non-small Cell Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2022; 25:193-200. [PMID: 35340162 PMCID: PMC8976204 DOI: 10.3779/j.issn.1009-3419.2022.101.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/16/2022] [Accepted: 01/18/2022] [Indexed: 11/05/2022]
Abstract
Brain metastasis of non-small cell lung cancer (NSCLC) is a common treatment failure mode, and the median survival time of NSCLC patients with brain metastasis is only 1 mon-2 mon. Prophylactic cranial irradiation (PCI) can delay the occurrence of brain metastasis, but the survival benefits of NSCLC patients are still controversial. It is particularly important to identify the patients who are most likely to benefit from PCI. This article reviews the high risk factors of brain metastasis in NSCLC.
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Affiliation(s)
- 爽 孙
- 100021 北京,国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院,北京协和医学院肿瘤医院放疗科Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - 玉 门
- 100021 北京,国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院,北京协和医学院肿瘤医院放疗科Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
- 100021 北京,国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院,特需医疗部Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - 周光 惠
- 100021 北京,国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院,北京协和医学院肿瘤医院放疗科Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
- 100021 北京,国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院,特需医疗部Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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14
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Yuan C, Zhou J, Zhou L, Wang L, Pan Y. Role of MiR-27a-3p in Intervertebral Disc Degeneration through Targeting RASSF5 via MST1/LATS1 and RAS/RAC1 Signaling Pathway. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:4457673. [PMID: 35295173 PMCID: PMC8920666 DOI: 10.1155/2022/4457673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/10/2022] [Indexed: 11/18/2022]
Abstract
Background The apoptosis of nucleus pulposus (NP) cells reduces the number of nucleus pulposus cells in intervertebral disc tissue, resulting in intervertebral disc degeneration (IDD). MicroRNAs (miRNAs) play an important regulatory role in abnormal cell proliferation and apoptosis. Methods The miR-27a-3p expressions in degenerative NP tissue and cells were measured via qPCR. The impacts of miR-27a-3p on the proliferation and apoptosis of human NP cells were evaluated by flow cytometry assays, MTT assays, and western blot analyses. In addition, target scan and luciferase reporter assay were applied to confirm that RASSF5 was directly binding to miR-27a-3p. Western blot was applied to assess the relationship between miR-27a-3p, RASSF5 and MST1/LATS1, and RAS/RAC1 signaling pathway. Results MiR-27a-3p was downregulated in degenerative NP tissues and cells by comparison with the control group. MiR-27a-3p overexpression enhanced cell proliferation and suppressed apoptosis of NP cells, while the above factors showed an opposite tendency after in the miR-27a-3p inhibitor group. The western blot experiment similarly suggested mir-27a-3p apparently downregulated apoptosis-related proteins (Bax and caspase-3) and upregulated antiapoptotic proteins (Bcl-2). In addition, RASSF5 was confirmed to be directly regulated by miR-27a-3p using the luciferase reporter assay. Overexpressed RASSF5 could reverse the effects caused by miR-27a-3p mimic. Finally, miR-27a-3p could downregulate RASSF5 and affected the MST1/LATS1 and RAS/RAC1 pathway. Conclusion MiR-27a-3p may target RASSF5 and enhance cell proliferation and imped cell apoptosis of the nucleus pulposus cells via the MST1/LATS1 and RAS/RAC1 pathway, lessening the degeneration of intervertebral discs.
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Affiliation(s)
- Chao Yuan
- Department of Orthopedics, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Jing Zhou
- Department of Orthopedics, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Lei Zhou
- Department of Orthopedics, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Liran Wang
- Department of Orthopedics, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Yong Pan
- Department of Orthopedics, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
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15
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Du Y, Miao Z, Qiu L, Lv Y, Wang K, Guo L. Clinical Potential of miR-451 and miR-506 as a Prognostic Biomarker in Patients with Breast Cancer. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:9578788. [PMID: 35070246 PMCID: PMC8767372 DOI: 10.1155/2022/9578788] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 12/29/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND The incidence and mortality of breast cancer in the world remain high. The function and important role of miR-451 and miR-506 in a series of cancers have been proved. The purpose of this research was to explore the clinical diagnosis and prognostic significance of miR-451 and miR-506 expression in breast cancer. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was applied to detect miR-451 and miR-506 expression in serum and tissues. The relationship of miR-451 and miR-506 with clinical parameters was determined by the chi-square test. Receiver operating characteristics (ROC) analysis was conducted to evaluate the diagnostic accuracy of miR-451 and miR-506 in breast cancer. In addition, we determined the prognostic performance of miR-451 and miR-506 using Kaplan-Meier survival assay. RESULTS The expression of miR-451 and miR-506 in breast cancer patients was significantly lower than that in healthy people. miR-451 and miR-506 expression decreased in breast cancer tissues compared with paracancerous tissue. High expression of miR-451 and miR-506 was associated with positive lymph node metastasis and late tumor node metastasis stage. Breast cancer patients with high miR-451 and miR-506 expression had lower five-year survival rate. The level of miR-451 and miR-506 expression showed high diagnostic accuracy for distinguishing breast cancer patients and healthy people. CONCLUSION miR-451 and miR-506 could be used as biomarker for the diagnosis and prognosis of breast cancer.
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Affiliation(s)
- Yu Du
- Department of Laboratory, Beijing Friendship Hospital, Capital Medical University, Beijing City 100050, China
| | - Zhuang Miao
- Department of Laboratory, Affiliated Hospital of Jilin Medical College, Jilin City 132013, Jilin Province, China
| | - Lijuan Qiu
- Department of Blood Transfusion, Beijing Children's Hospital, Capital Medical University, Beijing City 100045, China
| | - Yan Lv
- Department of Laboratory, Beijing Public Security Hospital, Beijing City 100050, China
| | - Kedi Wang
- Department of Laboratory, Beijing Friendship Hospital, Capital Medical University, Beijing City 100050, China
| | - Lusheng Guo
- Department of Laboratory, Affiliated Hospital of Jilin Medical College, Jilin City 132013, Jilin Province, China
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16
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Gangliosides as Biomarkers of Human Brain Diseases: Trends in Discovery and Characterization by High-Performance Mass Spectrometry. Int J Mol Sci 2022; 23:ijms23020693. [PMID: 35054879 PMCID: PMC8775466 DOI: 10.3390/ijms23020693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 12/16/2022] Open
Abstract
Gangliosides are effective biochemical markers of brain pathologies, being also in the focus of research as potential therapeutic targets. Accurate brain ganglioside mapping is an essential requirement for correlating the specificity of their composition with a certain pathological state and establishing a well-defined set of biomarkers. Among all bioanalytical methods conceived for this purpose, mass spectrometry (MS) has developed into one of the most valuable, due to the wealth and consistency of structural information provided. In this context, the present article reviews the achievements of MS in discovery and structural analysis of gangliosides associated with severe brain pathologies. The first part is dedicated to the contributions of MS in the assessment of ganglioside composition and role in the specific neurodegenerative disorders: Alzheimer’s and Parkinson’s diseases. A large subsequent section is devoted to cephalic disorders (CD), with an emphasis on the MS of gangliosides in anencephaly, the most common and severe disease in the CD spectrum. The last part is focused on the major accomplishments of MS-based methods in the discovery of ganglioside species, which are associated with primary and secondary brain tumors and may either facilitate an early diagnosis or represent target molecules for immunotherapy oriented against brain cancers.
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17
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Lin YY, Wang YC, Yeh DW, Hung CY, Yeh YC, Ho HL, Mon HC, Chen MY, Wu YC, Chou TY. Gene Expression Profile in Primary Tumor Is Associated with Brain-Tropism of Metastasis from Lung Adenocarcinoma. Int J Mol Sci 2021; 22:ijms222413374. [PMID: 34948172 PMCID: PMC8703941 DOI: 10.3390/ijms222413374] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/04/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022] Open
Abstract
Lung adenocarcinoma has a strong propensity to metastasize to the brain. The brain metastases are difficult to treat and can cause significant morbidity and mortality. Identifying patients with increased risk of developing brain metastasis can assist medical decision-making, facilitating a closer surveillance or justifying a preventive treatment. We analyzed 27 lung adenocarcinoma patients who received a primary lung tumor resection and developed metastases within 5 years after the surgery. Among these patients, 16 developed brain metastases and 11 developed non-brain metastases only. We performed targeted DNA sequencing, RNA sequencing and immunohistochemistry to characterize the difference between the primary tumors. We also compared our findings to the published data of brain-tropic and non-brain-tropic lung adenocarcinoma cell lines. The results demonstrated that the targeted tumor DNA sequencing did not reveal a significant difference between the groups, but the RNA sequencing identified 390 differentially expressed genes. A gene expression signature including CDKN2A could identify 100% of brain-metastasizing tumors with a 91% specificity. However, when compared to the differentially expressed genes between brain-tropic and non-brain-tropic lung cancer cell lines, a different set of genes was shared between the patient data and the cell line data, which include many genes implicated in the cancer-glia/neuron interaction. Our findings indicate that it is possible to identify lung adenocarcinoma patients at the highest risk for brain metastasis by analyzing the primary tumor. Further investigation is required to elucidate the mechanism behind these associations and to identify potential treatment targets.
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Affiliation(s)
- Yen-Yu Lin
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei 112201, Taiwan; (Y.-Y.L.); (Y.-C.Y.); (H.-L.H.); (H.-C.M.)
- Cancer Progression Research Center, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Yu-Chao Wang
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (Y.-C.W.); (D.-W.Y.); (C.-Y.H.)
| | - Da-Wei Yeh
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (Y.-C.W.); (D.-W.Y.); (C.-Y.H.)
| | - Chen-Yu Hung
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (Y.-C.W.); (D.-W.Y.); (C.-Y.H.)
| | - Yi-Chen Yeh
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei 112201, Taiwan; (Y.-Y.L.); (Y.-C.Y.); (H.-L.H.); (H.-C.M.)
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan; (Y.-C.W.); (D.-W.Y.); (C.-Y.H.)
| | - Hsiang-Ling Ho
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei 112201, Taiwan; (Y.-Y.L.); (Y.-C.Y.); (H.-L.H.); (H.-C.M.)
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Hsiang-Chen Mon
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei 112201, Taiwan; (Y.-Y.L.); (Y.-C.Y.); (H.-L.H.); (H.-C.M.)
| | - Mei-Yu Chen
- Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan;
| | - Yu-Chung Wu
- Department of Thoracic Surgery, Taipei Medical University Hospital, Taipei 110301, Taiwan;
| | - Teh-Ying Chou
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei 112201, Taiwan; (Y.-Y.L.); (Y.-C.Y.); (H.-L.H.); (H.-C.M.)
- Cancer Progression Research Center, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Correspondence:
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18
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Lambrou GI, Poulou M, Giannikou K, Themistocleous M, Zaravinos A, Braoudaki M. Differential and Common Signatures of miRNA Expression and Methylation in Childhood Central Nervous System Malignancies: An Experimental and Computational Approach. Cancers (Basel) 2021; 13:cancers13215491. [PMID: 34771655 PMCID: PMC8583574 DOI: 10.3390/cancers13215491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 10/24/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
Epigenetic modifications are considered of utmost significance for tumor ontogenesis and progression. Especially, it has been found that miRNA expression, as well as DNA methylation plays a significant role in central nervous system tumors during childhood. A total of 49 resected brain tumors from children were used for further analysis. DNA methylation was identified with methylation-specific MLPA and, in particular, for the tumor suppressor genes CASP8, RASSF1, MGMT, MSH6, GATA5, ATM1, TP53, and CADM1. miRNAs were identified with microarray screening, as well as selected samples, were tested for their mRNA expression levels. CASP8, RASSF1 were the most frequently methylated genes in all tumor samples. Simultaneous methylation of genes manifested significant results with respect to tumor staging, tumor type, and the differentiation of tumor and control samples. There was no significant dependence observed with the methylation of one gene promoter, rather with the simultaneous presence of all detected methylated genes' promoters. miRNA expression was found to be correlated to gene methylation. Epigenetic regulation appears to be of major importance in tumor progression and pathophysiology, making it an imperative field of study.
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Affiliation(s)
- George I. Lambrou
- Choremeio Research Laboratory, First Department of Pediatrics, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Myrto Poulou
- Department of Medical Genetics, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece;
| | - Krinio Giannikou
- Cancer Genetics Laboratory, Division of Pulmonary and Critical Care Medicine and of Genetics, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA;
| | - Marios Themistocleous
- Department of Neurosurgery, “Aghia Sofia” Children’s Hospital, 11527 Athens, Greece;
| | - Apostolos Zaravinos
- Department of Life Sciences, School of Sciences, European University Cyprus, Nicosia 2404, Cyprus
- Basic and Translational Cancer Research Center (BTCRC), Cancer Genetics, Genomics and Systems Biology Group, European University Cyprus, Nicosia 1516, Cyprus
- Correspondence: (A.Z.); (M.B.)
| | - Maria Braoudaki
- Department of Life and Environmental Sciences, School of Life and Health Sciences, University of Hertfordshire, Hertfordshire AL10 9AB, UK
- Correspondence: (A.Z.); (M.B.)
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19
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Karimpour M, Ravanbakhsh R, Maydanchi M, Rajabi A, Azizi F, Saber A. Cancer driver gene and non-coding RNA alterations as biomarkers of brain metastasis in lung cancer: A review of the literature. Biomed Pharmacother 2021; 143:112190. [PMID: 34560543 DOI: 10.1016/j.biopha.2021.112190] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 02/07/2023] Open
Abstract
Brain metastasis (BM) is the most common event in patients with lung cancer. Despite multimodal treatments and advances in systemic therapies, development of BM remains one of the main factors associated with poor prognosis and mortality in patients with lung cancer. Therefore, better understanding of mechanisms involved in lung cancer brain metastasis (LCBM) is of great importance to suppress cancer cells and to improve the overall survival of patients. Several cancer-related genes such as EGFR and KRAS have been proposed as potential predictors of LCBM. In addition, there is ample evidence supporting crucial roles of non-coding RNAs (ncRNAs) in mediating LCBM. In this review, we provide comprehensive information on risk assessment, predictive, and prognostic panels for early detection of BM in patients with lung cancer. Moreover, we present an overview of LCBM molecular mechanisms, cancer driver genes, and ncRNAs which may predict the risk of BM in lung cancer patients. Recent clinical studies have focused on determining mechanisms involved in LCBM and their association with diagnosis, prognosis, and treatment outcomes. These studies have shown that alterations in EGFR, KRAS, BRAF, and ALK, as the most frequent coding gene alterations, and dysregulation of ncRNAs such as miR-423, miR-330-3p, miR-145, piR-651, and MALAT1 can be considered as potential biomarkers of LCBM.
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Affiliation(s)
- Mina Karimpour
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Reyhaneh Ravanbakhsh
- Department of Aquatic Biotechnology, Artemia and Aquaculture Research Institute, Urmia University, Urmia, Iran
| | - Melika Maydanchi
- Zimagene Medical Genetics Laboratory, Avicenna St., Hamedan, Iran
| | - Ali Rajabi
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Faezeh Azizi
- Genetics Office, Non-Communicable Disease Control Department, Public Health Department, Ministry of Health and Medical Education, Tehran, Iran
| | - Ali Saber
- Zimagene Medical Genetics Laboratory, Avicenna St., Hamedan, Iran.
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20
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Xiang H, Li F, Luo J, Long W, Hong L, Hu Y, Du H, Yuan Y, Luo M. A meta-analysis on the relationship of exosomes and the prognosis of lung cancer. Medicine (Baltimore) 2021; 100:e25332. [PMID: 33847632 PMCID: PMC8051998 DOI: 10.1097/md.0000000000025332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 02/19/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND A lot of research evidence shows that exosomes play an indelible role in the prognosis of lung cancer, but there are many disputes. Therefore, we conduct a meta-analysis to further demonstrate. METHODS A literature retrieval was performed through a search of PubMed, Embase, Web of Science, Cochrane, CKNI, Wanfang, and other databases to locate documents from the literature that satisfied the inclusion criteria. There were four outcome indicators: overall survival (OS), disease-free survival (DFS), disease-specific survival (DSS), and progression-free survival (PFS). Subgroup analysis was conducted according to sample size, country, detection method, analysis method, and pathological type. Stata 14.0 software was used to evaluate the prognostic value of exosomes in lung cancer. RESULTS A total of 2456 patients with lung cancer from 29 studies in 16 articles were included. The expression level of exosomes was closely associated with the OS and DFS of patients, although no statistical difference was observed between exosomes and DSS or PFS. Eighteen studies with 2,110 patients were evaluated to examine the prognostic value of exosomes in lung cancer by exploring the association between exosomes and OS. The results showed that exosomes were strongly associated with worse OS, and the combined hazard ratio (HR) was 2.01 (95% confidence interval [CI]: 1.70-2.39, P = .000). Six studies investigated the association between exosomes and DFS, and showed a pooled HR of 2.48 (95% CI: 1.75-3.53, P = .000). CONCLUSION Our analysis indicated that the expression level of exosomes was closely associated with the OS and DFS of patients with lung cancer, suggesting that exosomes are associated with poor prognosis of lung cancer. Exosomes may be a new biomarker for the prognosis of lung cancer, although a large number of prospective studies are still needed to support this.
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Affiliation(s)
- Hui Xiang
- Guilin Medical University, Department of Respiratory and Critical care Medicine, Affiliated Hospital of Guilin Medical University
| | - Fan Li
- Department of Urology, Affiliated Hospital of Guilin Medical University
| | - Jingying Luo
- Department of Dermatology, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Wenting Long
- Guilin Medical University, Department of Respiratory and Critical care Medicine, Affiliated Hospital of Guilin Medical University
| | - Liuyan Hong
- Guilin Medical University, Department of Respiratory and Critical care Medicine, Affiliated Hospital of Guilin Medical University
| | - Yuzhui Hu
- Department of Urology, Affiliated Hospital of Guilin Medical University
| | - Hongying Du
- Department of Urology, Affiliated Hospital of Guilin Medical University
| | - Yunxiao Yuan
- Department of Urology, Affiliated Hospital of Guilin Medical University
| | - Miao Luo
- Department of Urology, Affiliated Hospital of Guilin Medical University
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21
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Guo T, Wang Y, Jia J, Mao X, Stankiewicz E, Scandura G, Burke E, Xu L, Marzec J, Davies CR, Lu JJ, Rajan P, Grey A, Tipples K, Hines J, Kudahetti S, Oliver T, Powles T, Alifrangis C, Kohli M, Shaw G, Wang W, Feng N, Shamash J, Berney D, Wang L, Lu YJ. The Identification of Plasma Exosomal miR-423-3p as a Potential Predictive Biomarker for Prostate Cancer Castration-Resistance Development by Plasma Exosomal miRNA Sequencing. Front Cell Dev Biol 2021; 8:602493. [PMID: 33490068 PMCID: PMC7817948 DOI: 10.3389/fcell.2020.602493] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/30/2020] [Indexed: 12/18/2022] Open
Abstract
Castration-resistant prostate cancer (CRPC) is the major cause of death from prostate cancer. Biomarkers to improve early detection and prediction of CRPC especially using non-invasive liquid biopsies could improve outcomes. Therefore, we investigated the plasma exosomal miRNAs associated with CRPC and their potential for development into non-invasive early detection biomarkers for resistance to treatment. RNA-sequencing, which generated approximately five million reads per patient, was performed to identify differentially expressed plasma exosomal miRNAs in 24 treatment-naive prostate cancer and 24 CRPC patients. RT-qPCR was used to confirm the differential expressions of six exosomal miRNAs, miR-423-3p, miR-320a, miR-99a-5p, miR-320d, miR-320b, and miR-150-5p (p = 7.3 × 10-8, 0.0020, 0.018, 0.0028, 0.0013, and 0.0058, respectively) firstly in a validation cohort of 108 treatment-naive prostate cancer and 42 CRPC patients. The most significant differentially expressed miRNA, miR-423-3p, was shown to be associated with CRPC with area under the ROC curve (AUC) = 0.784. Combining miR-423-3p with prostate-specific antigen (PSA) enhanced the prediction of CRPC (AUC = 0.908). A separate research center validation with 30 treatment-naive and 30 CRPC patients also confirmed the differential expression of miR-423-3p (p = 0.016). Finally, plasma exosomal miR-423-3p expression in CRPC patients was compared to 36 non-CRPC patients under androgen depletion therapy, which showed significantly higher expression in CRPC than treated non-CRPC patients (p < 0.0001) with AUC = 0.879 to predict CRPC with no difference between treatment-naive and treated non-CRPC patients. Therefore, our findings demonstrate that a number of plasma exosomal miRNAs are associated with CRPC and miR-423-3p may serve as a biomarker for early detection/prediction of castration-resistance.
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Affiliation(s)
- Tianyu Guo
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom.,Department of Cell Biology, Zhejiang University School of Medicine, The Second Affiliated Hospital, Hangzhou, China
| | - Yang Wang
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom.,Department of Urology, Affiliated Wuxi No. 2 Hospital of Nanjing Medical University, Wuxi, China
| | - Jing Jia
- Department of Tumor Biology, H. Lee Moffitt Cancer Center, Tampa, FL, United States
| | - Xueying Mao
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Elzbieta Stankiewicz
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Glenda Scandura
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Edwina Burke
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Lei Xu
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom.,Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jacek Marzec
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom.,Centre for Cancer Research, University of Melbourne, Melbourne, VIC, Australia
| | - Caitlin R Davies
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Jiaying Jasmin Lu
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Prabhakar Rajan
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom.,Department of Urology, Barts Health NHS, London, United Kingdom.,Division of Surgery and Interventional Sciences, University College London, London, United Kingdom.,Department of Uro-oncology, University College London NHS Foundation Trust, London, United Kingdom
| | - Alistair Grey
- Department of Urology, Barts Health NHS, London, United Kingdom.,Division of Surgery and Interventional Sciences, University College London, London, United Kingdom
| | - Karen Tipples
- Department of Urology, Barts Health NHS, London, United Kingdom
| | - John Hines
- Department of Urology, Barts Health NHS, London, United Kingdom.,Department of Uro-oncology, University College London NHS Foundation Trust, London, United Kingdom
| | - Sakunthala Kudahetti
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Tim Oliver
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Thomas Powles
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Constantine Alifrangis
- Department of Urology, Barts Health NHS, London, United Kingdom.,Department of Uro-oncology, University College London NHS Foundation Trust, London, United Kingdom
| | - Manish Kohli
- Department of Medicine, University of Utah, Huntsman Cancer Institute, Salt Lake City, UT, United States.,Department of Oncology, Mayo Clinic, Rochester, MN, United States
| | - Greg Shaw
- Department of Urology, Barts Health NHS, London, United Kingdom.,Division of Surgery and Interventional Sciences, University College London, London, United Kingdom.,Department of Uro-oncology, University College London NHS Foundation Trust, London, United Kingdom
| | - Wen Wang
- Division of Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Ninghan Feng
- Department of Urology, Affiliated Wuxi No. 2 Hospital of Nanjing Medical University, Wuxi, China
| | - Jonathan Shamash
- Department of Medical Oncology, Barts Health NHS, London, United Kingdom
| | - Daniel Berney
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Liang Wang
- Department of Tumor Biology, H. Lee Moffitt Cancer Center, Tampa, FL, United States
| | - Yong-Jie Lu
- Centre for Cancer Biomarker and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom.,Department of Urology, Affiliated Wuxi No. 2 Hospital of Nanjing Medical University, Wuxi, China
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22
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Hao W, Zhu Y, Wang H, Guo Y. miR-4270 Modulates the Irradiation-Sensitivity of Nasopharyngeal Carcinoma Cells through Modulation of p53 in Vivo. TOHOKU J EXP MED 2021; 254:63-70. [PMID: 34078755 DOI: 10.1620/tjem.254.63] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The lowered sensitivity to irradiation considerably impacted on the prognosis of nasopharyngeal carcinoma treatments. This study aimed to explore the functions of miR-4270 in nasopharyngeal carcinoma. Bioinformatic analysis was performed online accessing GSE139164 dataset to screen the top 30 differential microRNAs in nasopharyngeal carcinoma patients with radio-sensitivity. Cancer cell lines, 6-10B and 5-8F, were cultured and measured for expression of miR-4270 and TP53 (the gene of the tumor suppressor protein p53) with the normal nasopharyngeal epithelial cells as a control. The miR-4270 expression was regulated in cells via the introduction of miR-4270 inhibitor or mimic in different concentrations (25, 50, 100 nmol/L). Targetscan predicted the target of miR-4270 and the bindings while luciferase was used to confirm this. CCK8 methods were used to evaluate the irradiation sensitivity of the cells after exposure to increasing X-Ray irradiation. RT-PCR detected the RNA expression and Western blot examined the protein expression of p53. Flow cytometry detected the cell apoptosis rates respectively. miR-4270 is among the top differential microRNAs between the radio-sensitive and -resistant patients. In vivo, miR-4270 expression was lower in cancer cell lines. The inhibition of miR-4270 raised the cell sensitivity to irradiation. miR-4270 negatively mediated TP53 and targeted TP53. Additionally, p53 increased cell sensitivity to irradiation and modulated by miR-4270 in nasopharyngeal carcinoma cells. In conclusion, this study first reports that miR-4270 is lower in the radio-sensitive patients and modulated the irradiation-sensitivity of nasopharyngeal carcinoma cells through modulation of p53 in vivo.
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Affiliation(s)
- Wenwei Hao
- Department of Otolaryngology, Tianjin Medical University General Hospital
| | | | - Haowei Wang
- Department of Otolaryngology, Tianjin Medical University General Hospital
| | - Ying Guo
- Department of Otolaryngology, Tianjin Medical University General Hospital
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Ke R, Lv L, Zhang S, Zhang F, Jiang Y. Functional mechanism and clinical implications of MicroRNA-423 in human cancers. Cancer Med 2020; 9:9036-9051. [PMID: 33174687 PMCID: PMC7724490 DOI: 10.1002/cam4.3557] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 08/16/2020] [Accepted: 09/21/2020] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs play a vital role in the regulatory mechanisms of tumorigenesis. Current research indicates that microRNA-423 (miR-423) is abnormally expressed in various human tumors and participates in multiple signaling pathways of cancer progression. In most studies, miR-423 was confirmed as oncomiR, while a few contradictory reports considered miR-423 as an anticancer miRNA. The paradoxical role in cancer may hinder the application of miR-423 as a diagnostic and therapeutic target. Simultaneously, the interaction mechanism between miR-423 and lncRNA also needs attention. In this review, we have summarized the dual role of aberrant miR-423 expression and its mechanisms in tumorigenesis, and the therapeutic potential of miR-423 in human tumors.
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Affiliation(s)
- RuiSheng Ke
- Department of General Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, China.,The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou City, China
| | - LiZhi Lv
- The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou City, China.,Department of Hepatobiliary Surgery, 900 Hospital of the Joint Logistics Team, Fuzhou City, China
| | - SiYu Zhang
- Department of General Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - FuXing Zhang
- Department of General Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Yi Jiang
- The Fuzong Clinical Medical College of Fujian Medical University, Fuzhou City, China.,Department of Hepatobiliary Surgery, 900 Hospital of the Joint Logistics Team, Fuzhou City, China
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Wu Y, Shen Q, Chen X, Wu Y, Niu Y, Lv F. miR-1301-3p promotes the proliferation and migration of lung cancer cells via direct repression of polymerase I and transcript release factor. Oncol Lett 2020; 20:286. [PMID: 33014164 PMCID: PMC7520749 DOI: 10.3892/ol.2020.12149] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/19/2020] [Indexed: 12/25/2022] Open
Abstract
Aberrant expression of microRNAs (miRNAs or miRs) is associated with a number of human diseases, including lung cancer. Although numerous differentially expressed miRNAs have been identified in lung cancer via microarray and sequencing methods, to the best of our knowledge, only a small portion of these miRNAs have been experimentally verified. In the present study, miR-1301-3p expression levels in lung tumor tissues and lung cancer cells were measured by reverse transcription-quantitative PCR (RT-qPCR) and by analyzing previously published data. Cell Counting Kit-8 and Transwell assays were used to analyze the function of miR-1301-3p in lung cancer tissues and cells. Bioinformatics analysis, RT-qPCR, western blotting and a dual-luciferase reporter assay were performed to investigate the mechanism of miR-1301-3p in lung cancer cells. It was identified that miR-1301-3p is an upregulated miRNA in lung cancer via analyzing previously published microarray and The Cancer Genome Atlas-lung squamous cell carcinoma project data, and the upregulation of miR-1301-3p was confirmed in collected clinical samples and cells. Inhibition of miR-1301-3p suppressed lung cancer cell proliferation and migration. In addition, miR-1301-3p inhibition upregulated E-cadherin, an epithelial cell maker, and downregulated vimentin, a mesenchymal cell marker. Using bioinformatics analysis, it was revealed that polymerase I and transcript release factor (PTRF) is a target of miR-1301-3p. RT-qPCR, western blotting and dual-luciferase reporter assays demonstrated that PTRF is targeted by miR-1301-3p in lung cancer cells. The rescue experiments indicated that silencing PTRF could attenuate the inhibition of cell proliferation and migration induced by miR-1301-3p inhibitor in lung cancer cells. Furthermore, a strong negative correlation between miR-1301-3p and PTRF mRNA was identified in clinical samples. In summary, the present data highlight the involvement of miR-1301-3p in the proliferation and migration of lung cancer cells, indicating that miR-1301-3p may be a promising biomarker for lung cancer.
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Affiliation(s)
- Yun Wu
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated with Fudan University, Shanghai 200040, P.R. China
| | - Qianwen Shen
- Department of Radiation Oncology, Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated with Fudan University, Shanghai 200040, P.R. China
| | - Xiaoyu Chen
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated with Fudan University, Shanghai 200040, P.R. China
| | - Yue Wu
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated with Fudan University, Shanghai 200040, P.R. China
| | - Yuxu Niu
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated with Fudan University, Shanghai 200040, P.R. China
| | - Fanzhen Lv
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated with Fudan University, Shanghai 200040, P.R. China
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Sun G, Ding X, Bi N, Wang Z, Wu L, Zhou W, Zhao Z, Wang J, Zhang W, Fan J, Zhang W, Dong X, Lv N, Song Y, Zhan Q, Wang L. Correction: Molecular predictors of brain metastasis-related microRNAs in lung adenocarcinoma. PLoS Genet 2020; 16:e1009139. [PMID: 33052902 PMCID: PMC7556456 DOI: 10.1371/journal.pgen.1009139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Wang H, Huang Z, Zhao X, Guo B, Ji Z. miR-4270 regulates cell proliferation and apoptosis in patients with Sertoli cell-only syndrome by targeting GADD45A and inactivating the NOTCH signaling pathway. Am J Transl Res 2020; 12:5730-5740. [PMID: 33042452 PMCID: PMC7540124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 08/01/2020] [Indexed: 06/11/2023]
Abstract
In recent decades, growing data has suggested that microRNAs (miRNAs, miRs) play a critical role in the development of Sertoli cells (SC), including regulating SC maturation, synthesis, proliferation, and apoptosis. Previous reports of miRNA microarray have identified aberrant miR-4270 expression in patients with Sertoli-cell-only syndrome (SCOS). However, it is not known whether miR-4270 is associated with the pathogenesis of SCOS. In this study, we aimed to further investigate the roles and potential mechanisms of miR-4270 on SC proliferation and apoptosis. Our data confirmed that miR-4270 was significantly upregulated in SC of SCOS patients compared with healthy controls. EdU and CCK-8 assays showed silencing of miR-4270 by specific inhibitor significantly enhanced human SC and TM4 cells proliferation. ELISA and flow cytometry assays indicated that miR-4270 knockdown prominently suppressed the apoptosis of human SC and TM4 cells. Furthermore, expression of cell cycle genes, including CCNE1 (cyclin E1), CCND1 (cyclin D1) and CDK4 (cyclin dependent kinase 4), were obviously upregulated in human SC and TM4 cells by qRT-PCR assay after knockdown of miR-4270, while expression of cell apoptotic factors, including CASP3 (caspase 3), CASP6 (caspase 6) and CASP7 (caspase 7), were all markedly decreased. Notably, GADD45A (growth arrest and DNA damage inducible alpha) mRNA was downregulated in SC of SCOS patients, and negatively corrected with miR-4270 expression. Moreover, bioinformatics tools and dual-luciferase reporter assay identified that miR-4270 directly bound the 3'-UTR of GADD45A mRNA to inhibit GADD45A expression. Meanwhile, Western blots analysis validated that the protein expression levels of NOTCH1 (notch receptor 1) and HES1 (hes family bHLH transcription factor 1) were significantly increased in SC and TM4 cells after miR-4270 silencing or GADD45A overexpression. Taken together, our data demonstrated that miR-4270 regulates proliferation and apoptosis in SC of SCOS patients by inactivating NOTCH signaling pathway via GADD45A gene, which may offer a new insight into the development of human SC and provide a promising biomarker for the treatment of SCOS.
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Affiliation(s)
- Hai Wang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesBeijing 100730, P. R. China
| | - Zhongming Huang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesBeijing 100730, P. R. China
| | - Xin Zhao
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesBeijing 100730, P. R. China
| | - Boda Guo
- Department of Urology, Beijing Hospital, National Center of GerontologyBeijing 100730, P. R. China
| | - Zhigang Ji
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesBeijing 100730, P. R. China
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Shen D, Zhao H, Zeng P, Song J, Yang Y, Gu X, Ji Q, Zhao W. Circular RNA hsa_circ_0005556 Accelerates Gastric Cancer Progression by Sponging miR-4270 to Increase MMP19 Expression. J Gastric Cancer 2020; 20:300-312. [PMID: 33024586 PMCID: PMC7521983 DOI: 10.5230/jgc.2020.20.e28] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/09/2020] [Accepted: 08/23/2020] [Indexed: 02/03/2023] Open
Abstract
Purpose Circular RNAs (circRNAs) are a new class of RNA molecules whose function is largely unknown. There is a growing evidence that circRNAs play an important regulatory role in the progression of a variety of human cancers. However, the exact roles and the mechanisms of circRNAs in gastric cancer are not clear. In this study, we aimed to elucidate the mechanism of hsa_circ_0005556. Materials and Methods Real-time quantitative polymerase chain reaction was used to detect the expression of hsa_circ_0005556, miR-4270, and matrix metalloproteinase-19 (MMP19) in gastric cancer tissues and cell lines. The expression of hsa_circ_0005556 in gastric cancer cells was silenced by lentivirus, and cell proliferation, invasion, migration, and tumorigenesis in nude mice were assessed to evaluate the function of hsa_circ_0005556 in gastric cancer. Results The expression of hsa_circ_0005556 in gastric cancer tissues and gastric cancer cell lines was higher compared to normal controls. In vitro, the downregulation of hsa_circ_0005556 significantly inhibited proliferation, migration, and invasion of gastric cancer cells. In vivo, the downregulation of hsa_circ_0005556 suppressed tumor growth in nude mice. Conclusions Our study shows that the hsa_circ_0005556/miR-4270/MMP19 axis is involved in proliferation, migration, and invasion of gastric cancer cells through the competing endogenous RNA (ceRNA) mechanism.
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Affiliation(s)
- Duo Shen
- Medical School, Southeast University, Nanjing, China
| | - Hongyu Zhao
- Department of Clinical Research Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Peng Zeng
- Medical School, Southeast University, Nanjing, China
| | - Jinyun Song
- Department of Clinical Research Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yiqiong Yang
- Medical School, Southeast University, Nanjing, China
| | - Xuefeng Gu
- Medical School, Southeast University, Nanjing, China
| | - Qinghua Ji
- Medical School, Southeast University, Nanjing, China
| | - Wei Zhao
- Medical School, Southeast University, Nanjing, China
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Li X, Xu R, Liu X, Xu L, Xue M, Cheng Y, Li T, Yu X, Wang Y, Li C, Sun B, Chen L. Urinary miR-3137 and miR-4270 as potential biomarkers for diabetic kidney disease. J Clin Lab Anal 2020; 34:e23549. [PMID: 32869917 PMCID: PMC7755759 DOI: 10.1002/jcla.23549] [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: 02/12/2020] [Revised: 06/28/2020] [Accepted: 07/31/2020] [Indexed: 01/06/2023] Open
Abstract
Background As one of the most prevalent diagnostic indicators of diabetic kidney disease (DKD), albumin‐to‐creatinine ratio (ACR) shows considerably limited predictive power in clinical application. We analyzed microarray expression profiling of urine to seek for differentially expressed miRNAs for potential biomarkers of DKD. Methods Urine samples from type 2 diabetes mellitus (T2DM) patients with (30 mg/g < ACR < 300 mg/g, DKD group) or without DKD (ACR < 30 mg/g, DM group) were collected for miRNA microarray analysis. The differentially expressed miRNAs were screened by bioinformatics analysis and validated by quantitative real‐time PCR. Target genes of differentially expressed miRNAs were predicted in miRDB, Targetscan, and microRNA.org databases. We also conducted the Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) signaling pathways analysis to explore for potential mechanisms in DKD. Results Nine miRNAs were down‐regulated and seventeen miRNAs were up‐regulated in DKD group, compared to DM group. The levels of miR‐3137 and miR‐4270 in DKD group were 0.670 ± 0.505 and 2.116 ± 1.762 times than those in DM group, respectively, showing great significance. A total of 1076 target genes were simultaneously predicted by miRDB, Targetscan, and microRNA.org databases. According to the GO analysis results, disorders of endomembrane system may be one of the major pathological changes in DKD. In addition, Rap 1 signaling pathway is also altered obviously in DKD, discovered by the KEGG analysis. Conclusion MiR‐3137 and miR‐4270 show the potential for urinary biomarkers of DKD. The pathological changes of DKD may be related to disorders of endomembrane system and alternation of Rap1 signaling pathway.
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Affiliation(s)
- Xiaoyu Li
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Rong Xu
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Xiangyang Liu
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Linxin Xu
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Mei Xue
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Ying Cheng
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Ting Li
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Xiaochen Yu
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Yue Wang
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Chunjun Li
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Bei Sun
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Liming Chen
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
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Dai T, Zhao X, Li Y, Yu L, Li Y, Zhou X, Gong Q. miR-423 Promotes Breast Cancer Invasion by Activating NF-κB Signaling. Onco Targets Ther 2020; 13:5467-5478. [PMID: 32606763 PMCID: PMC7297514 DOI: 10.2147/ott.s236514] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 04/19/2020] [Indexed: 12/17/2022] Open
Abstract
Objective Breast cancer has become the most common malignancy among women worldwide; therefore, novel diagnostic and prognostic markers and therapeutic targets are urgently required. NF-κB signaling plays a pivotal role in enhancing breast cancer malignant phenotypes, especially cancer invasion and metastasis, which is the main cause of death in cancer patients. TNIP2, an important inhibitor of the NF-κB pathway, is known to involve a negative feedback loop of the NF-κB signaling cascade and to regulate tumor aggressiveness in various cancer types. However, the mRNA level of TNIP2 is barely altered in breast cancer; thus, the mechanism that regulates TNIP2 in breast cancer still needs to be elucidated. Methods We analyzed the expression and prognosis of miR-423 in a TCGA BRCA miRNA cohort and in clinical specimens. We detected the invasive capacity through a Matrigel-coated Transwell penetration assay, a three-dimensional (3D) spheroid invasion assay and a wound healing assay. Then, we applied luciferase assays, real-time PCR assays and Western blotting to further study the mechanism. Results In this study, analysis of the TCGA BRCA miRNA cohort and clinical specimens demonstrated that miR-423 was upregulated in human breast cancers and was positively correlated with clinical stage, poor overall survival and metastasis classification. Moreover, the invasiveness of breast cancer cells was enhanced by ectopic expression of miR-423 and inhibited by miR-423 downregulation. Mechanistically, upregulation of miR-423 led to activation of the NF-κB signaling pathway and elevated expression of snail and twist, while repression of miR-423 inhibited this pathway. Furthermore, the results indicated that TNIP2 is a target gene of miR-423, and suppression of TNIP2 resulted in increased invasiveness in miR-423-silenced cells. Conclusion Our results suggest that miR-423 is a crucial factor that enhances breast cancer cell invasion through the NF-κB signaling pathway and shed light on miR-423 as a promising prognostic and therapeutic marker for metastatic breast cancer.
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Affiliation(s)
- Ting Dai
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Xiaohui Zhao
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Yun Li
- Department of Immunobiology, Jinan University, Guangzhou 510632, People's Republic of China
| | - Lihong Yu
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Yanan Li
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Xiang Zhou
- Department of Microsurgery, Trauma and Hand Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, People's Republic of China
| | - Qing Gong
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
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Wang Y, Li CF, Sun LB, Li YC. microRNA-4270-5p inhibits cancer cell proliferation and metastasis in hepatocellular carcinoma by targeting SATB2. Hum Cell 2020; 33:1155-1164. [PMID: 32504285 DOI: 10.1007/s13577-020-00384-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/27/2020] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) remains a lethal cancer type for both males and females. MicroRNAs (miRNAs) contribute to the initiation, development and metastasis of cancer. Although several miRNAs have been identified as drivers or suppressors of HCC, the molecular mechanisms of many miRNAs have not been investigated. Currently, we discovered that miR-4270-5p was a significantly downregulated miRNA in HCC. We revealed that miR-4270-5p overexpression inhibited cell proliferation and invasion of HCC cells. The data manifested that miR-4270-5p directly targeted SATB2, a key regulator of epithelial mesenchymal transition (EMT), in HCC cells and reversed the EMT process. The rescue experiments suggested that SATB2 overexpression reversed the biological function of miR-4270-5p in HCC cells. Clinical data indicated that SATB2 expression was negatively correlated with miR-4270-5p levels in HCC patients. Our findings provided potential targets for prognosis and treatment of patients with HCC.
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Affiliation(s)
- Yun Wang
- Department of Internal Medicine, Liver and Biliary Disease Hospital of Jilin Province, Changchun, Jilin, China
| | - Chang-Feng Li
- Department of Endoscopy Center, The China-Japan Union Hospital of Jilin University Hospital, Changchun, Jilin, China
| | - Li-Bo Sun
- Department of Gastrointestinal Colorectal Surgery, The China-Japan Union Hospital of Jilin University, Xiantai Road No.126, Changchun, 130033, Jilin, China
| | - Yong-Chao Li
- Department of Gastrointestinal Colorectal Surgery, The China-Japan Union Hospital of Jilin University, Xiantai Road No.126, Changchun, 130033, Jilin, China.
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Wang H, Deng Q, Lv Z, Ling Y, Hou X, Chen Z, Dinglin X, Ma S, Li D, Wu Y, Peng Y, Huang H, Chen L. N6-methyladenosine induced miR-143-3p promotes the brain metastasis of lung cancer via regulation of VASH1. Mol Cancer 2019; 18:181. [PMID: 31823788 PMCID: PMC6902331 DOI: 10.1186/s12943-019-1108-x] [Citation(s) in RCA: 168] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/25/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Brain metastasis (BM) is one of the principal causes of mortality for lung cancer patients. While the molecular events that govern BM of lung cancer remain frustrating cloudy. METHODS The miRNA expression profiles are checked in the paired human BM and primary lung cancer tissues. The effect of miR-143-3p on BM of lung cancer cells and its related mechanisms are investigated. RESULTS miR-143-3p is upregulated in the paired BM tissues as compared with that in primary cancer tissues. It can increase the invasion capability of in vitro blood brain barrier (BBB) model and angiogenesis of lung cancer by targeting the three binding sites of 3'UTR of vasohibin-1 (VASH1) to inhibit its expression. Mechanistically, VASH1 can increase the ubiquitylation of VEGFA to trigger the proteasome mediated degradation, further, it can endow the tubulin depolymerization through detyrosination to increase the cell motility. m6A methyltransferase Mettl3 can increase the splicing of precursor miR-143-3p to facilitate its biogenesis. Moreover, miR-143-3p/VASH1 axis acts as adverse prognosis factors for in vivo progression and overall survival (OS) rate of lung cancer. CONCLUSIONS Our work implicates a causal role of the miR-143-3p/VASH1 axis in BM of lung cancers and suggests their critical roles in lung cancer pathogenesis.
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Affiliation(s)
- Hongsheng Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China.
| | - Qianqian Deng
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Ziyan Lv
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Yuyi Ling
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Xue Hou
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Zhuojia Chen
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Xiaoxiao Dinglin
- Cancer Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, Guangdong, China
| | - Shuxiang Ma
- Department of Medical Oncology, Henan Cancer Hospital, the Affiliated Cancer Hospital of Zhengzhou University, 127 Dongming Road, Zhengzhou, 450008, Henan, China
| | - Delan Li
- Department of Medical Oncology, Zhongshan City People Hospital, Zhongshan, 528403, Guangdong, China
| | - Yingmin Wu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Yanxi Peng
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Hongbing Huang
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China
| | - Likun Chen
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, China.
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Zhu Y, Zhang X, Qi M, Zhang Y, Ding F. miR-873-5p inhibits the progression of colon cancer via repression of tumor suppressor candidate 3/AKT signaling. J Gastroenterol Hepatol 2019; 34:2126-2134. [PMID: 31039290 DOI: 10.1111/jgh.14697] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/20/2019] [Accepted: 04/21/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND AIM We previously discovered that tumor suppressor candidate 3 (TUSC3) was overexpressed and predicted worse prognosis in colon cancer patients. However, the mechanisms of upregulation of TUSC3 in colon cancer remained unclear. METHODS MiR-873-5p was predicted and identified as the regulator of TUSC3 via online programs and luciferase reporter assays. The roles of miR-873-5p in regulating colon cancer cell proliferation, colony formation, and invasion were evaluated in vitro. Animal studies were performed to investigate the effects of miR-873-5p on proliferation and lung metastasis. Moreover, the miR-873-5p/TUSC3 related signaling pathway and the prognostic value of combining miR-873-5p and TUSC3 for colon cancer patients were also explored. RESULTS Here, we identified miR-873-5p as a novel regulator of TUSC3 in colon cancer. Functionally, ectopic expression or silencing of miR-873-5p, respectively, inhibited or promoted colon cancer cells proliferation, colony formation, and invasion, as well as prevented or enhanced the metastasis of colon cancer cells in vitro and in vivo. Molecularly, miR-873-5p functioned as a tumor suppressor by inhibiting the TUSC3/AKT pathway. Overexpression or silencing of TUSC3 could partially reverse the effects of the overexpression or repression of miR-873-5p on colon cancer progression caused by activation of the AKT pathway. Clinically, low miR-873-5p expression predicted poor survival in colon cancer patients, especially combined with high TUSC3 expression. CONCLUSIONS We identified miR-873-5p as a tumor suppressor, which acts by directly repressing TUSC3 in colon cancer.
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Affiliation(s)
- Yufeng Zhu
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xiaojian Zhang
- Department of Thyroid Surgery, Taian Central Hospital, Taian, China
| | - Ming Qi
- Department of Ultrasound, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yong Zhang
- The Second Department of General Surgery, Taian Central Hospital, Taian, China
| | - Feng Ding
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Ma Z, Zhou J, Shao Y, Jafari FA, Qi P, Li Y. Biochemical properties and progress in cancers of tRNA-derived fragments. J Cell Biochem 2019; 121:2058-2063. [PMID: 31674076 DOI: 10.1002/jcb.29492] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 10/08/2019] [Indexed: 01/01/2023]
Abstract
tRNA-derived small RNAs (tRFs), a kind of noncoding RNAs, are generated from transfer RNAs. tRFs have some types according to their source and sizes. They play important roles in cell life and carcinogenesis. In this paper, we review the biogenesis and biological properties. We also focus on current progress of tRFs and some tsRNAs such as tRF-Leu-CAG, which have been studied or will be further investigated in tumorgenesis and diagnostic biomarkers in the clinic.
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Affiliation(s)
- Zhongliang Ma
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Jinbao Zhou
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Yang Shao
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Fatemah A Jafari
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Pengfei Qi
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
| | - Yanli Li
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, China
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Chen T, Zhu J, Cai T, Du W, Zhang Y, Zhu Q, Liu Z, Huang JA. Suppression of non-small cell lung cancer migration and invasion by hsa-miR-486-5p via the TGF-β/SMAD2 signaling pathway. J Cancer 2019; 10:6014-6024. [PMID: 31762811 PMCID: PMC6856587 DOI: 10.7150/jca.35017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 08/18/2019] [Indexed: 12/13/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related death worldwide. SMAD family member 2 (SMAD2) is a key element downstream of the transforming growth factor beta (TGF-β) signaling pathway that regulates cancer metastasis by promoting the epithelial-mesenchyme transition (EMT). MicroRNA miR-486-5p is a tumor suppressor in NSCLC progression. However, it remains unclear whether miR-486-5p is implicated in TGF-β signaling and EMT in NSCLC. In the present study, high expression of SMAD2 mRNA was detected in NSCLC tissues and cell lines, and was associated with poor survival of patients with NSCLC. By contrast, miR-486-5p was downregulated in NSCLC tissues and cell lines. In silico prediction showed that SMAD2 was a potential target of miR-486-5p. The prediction was verified using a dual-luciferase reporter assay. Transwell assays showed that knockdown of SMAD2 inhibited TGF-β-induced EMT and migration and invasion in NSCLC cells. Similarly, miR-486-5p overexpression suppressed TGF-β-induced EMT and migration and invasion of NSCLC cells. The present study provides a new insight into the role of miR-486-5p in regulating TGF-β-mediated EMT and invasion in NSCLC.
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Affiliation(s)
- Tao Chen
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.,Suzhou Key Laboratory for Respiratory Diseases, Suzhou 215006, China
| | - Jianjie Zhu
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.,Suzhou Key Laboratory for Respiratory Diseases, Suzhou 215006, China.,Institute of Respiratory Diseases, Soochow University, Suzhou 215006, China
| | - Tingting Cai
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.,Suzhou Key Laboratory for Respiratory Diseases, Suzhou 215006, China
| | - Wenwen Du
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.,Suzhou Key Laboratory for Respiratory Diseases, Suzhou 215006, China
| | - Yang Zhang
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.,Suzhou Key Laboratory for Respiratory Diseases, Suzhou 215006, China
| | - Qingqing Zhu
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.,Suzhou Key Laboratory for Respiratory Diseases, Suzhou 215006, China
| | - Zeyi Liu
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.,Suzhou Key Laboratory for Respiratory Diseases, Suzhou 215006, China.,Institute of Respiratory Diseases, Soochow University, Suzhou 215006, China
| | - Jian-An Huang
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.,Suzhou Key Laboratory for Respiratory Diseases, Suzhou 215006, China.,Institute of Respiratory Diseases, Soochow University, Suzhou 215006, China
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