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Ma J, Bai Y, Chen F, Zhou F, Zhang L, Xue P, Wang D. MicroRNA-185-5p targets tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta to regulate non-small cell lung cancer progression. J Cardiothorac Surg 2023; 18:241. [PMID: 37525284 PMCID: PMC10391904 DOI: 10.1186/s13019-023-02342-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 07/21/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Lung cancer (LC) is one of the most frequent cancers worldwide, as well as the leading cause of cancer-related death. Non-small cell lung cancer (NSCLC, which accounts for 85% of occurrences) is the main type of LC. MiRNAs appear to play a role in the occurrence and progression of many malignancies, according to mounting data. The underlying mechanism of miRNAs in regulating NSCLC cell biological activity and progression, on the other hand, is still being investigated. METHODS QRT-PCR were used to detect miR-185-5p expression and YWHAZ mRNA in NSCLC. The CCK-8 assay was used to determine the tumor cells' ability to proliferate. Transwall assay was used to test the migratory and invasive properties of cells. Cell apoptosis was detected using flow cytometry. Tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta (YWHAZ), E-Cadherin, N-Cadherin and cleaved-caspase3 protein expression were assessed using Western Blot. The bioinformatics analysis software StarBase2.0 predicted miR-185-5p downstream targets. To confirm the target association between miR-185-5p and YWHAZ, a luciferase experiment was used. In addition, an NCl-H1299 xenograft model was created to assess the anti-tumor impact of miR-185-5p in vivo. The expression level of YWHAZ in tumor tissues of small xenograft tumor model was detected by immunohistochemistry assay. RESULTS Decreased miR-185-5p expression levels were observed in NSCLC. In vitro, over-expressed miR-185-5p decreased cell viability, proliferation, invasion/migration, and induced cell apoptosis, while inhibiting tumor growth in vivo. Dual-luciferase gene experiments confirmed that YWHAZ binds to miR-185-5p. Overexpression of YWHAZ partially restored the inhibitory effects of miR-185-5p on cell behaviors. CONCLUSION MiR-185-5p was down-regulated in NSCLC, and that overexpressed miR-185-5p inhibited malignant behaviors of cells and tumor growth by negatively regulating YWHAZ.
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Affiliation(s)
- Jiangang Ma
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, No.5 Weiyang West Road, Qindu District, Xianyang, 712000, Shaanxi, China
| | - Yan Bai
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, No.5 Weiyang West Road, Qindu District, Xianyang, 712000, Shaanxi, China
| | - Fangyuan Chen
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, No.5 Weiyang West Road, Qindu District, Xianyang, 712000, Shaanxi, China
| | - Feng Zhou
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, No.5 Weiyang West Road, Qindu District, Xianyang, 712000, Shaanxi, China
| | - Liyuan Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, No.5 Weiyang West Road, Qindu District, Xianyang, 712000, Shaanxi, China
| | - Peini Xue
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, No.5 Weiyang West Road, Qindu District, Xianyang, 712000, Shaanxi, China
| | - Dong Wang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, No.5 Weiyang West Road, Qindu District, Xianyang, 712000, Shaanxi, China.
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2
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Talia M, Cirillo F, Spinelli A, Zicarelli A, Scordamaglia D, Muglia L, De Rosis S, Rigiracciolo DC, Filippelli G, Perrotta ID, Davoli M, De Rosa R, Macirella R, Brunelli E, Miglietta AM, Nardo B, Tosoni D, Pece S, De Francesco EM, Belfiore A, Maggiolini M, Lappano R. The Ephrin tyrosine kinase a3 (EphA3) is a novel mediator of RAGE-prompted motility of breast cancer cells. J Exp Clin Cancer Res 2023; 42:164. [PMID: 37434266 DOI: 10.1186/s13046-023-02747-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/03/2023] [Indexed: 07/13/2023] Open
Abstract
BACKGROUND The receptor for advanced glycation-end products (RAGE) and its ligands have been implicated in obesity and associated inflammatory processes as well as in metabolic alterations like diabetes. In addition, RAGE-mediated signaling has been reported to contribute to the metastatic progression of breast cancer (BC), although mechanistic insights are still required. Here, we provide novel findings regarding the transcriptomic landscape and the molecular events through which RAGE may prompt aggressive features in estrogen receptor (ER)-positive BC. METHODS MCF7 and T47D BC cells stably overexpressing human RAGE were used as a model system to evaluate important changes like cell protrusions, migration, invasion and colony formation both in vitro through scanning electron microscopy, clonogenic, migration and invasion assays and in vivo through zebrafish xenografts experiments. The whole transcriptome of RAGE-overexpressing BC cells was screened by high-throughput RNA sequencing. Thereafter, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses allowed the prediction of potential functions of differentially expressed genes (DEGs). Flow cytometry, real time-PCR, chromatin immunoprecipitation, immunofluorescence and western blot assays were performed to investigate the molecular network involved in the regulation of a novel RAGE target gene namely EphA3. The clinical significance of EphA3 was explored in the TCGA cohort of patients through the survivALL package, whereas the pro-migratory role of EphA3 signaling was ascertained in both BC cells and cancer-associated fibroblasts (CAFs). Statistical analysis was performed by t-tests. RESULTS RNA-seq findings and GSEA analysis revealed that RAGE overexpression leads to a motility-related gene signature in ER-positive BC cells. Accordingly, we found that RAGE-overexpressing BC cells exhibit long filopodia-like membrane protrusions as well as an enhanced dissemination potential, as determined by the diverse experimental assays. Mechanistically, we established for the first time that EphA3 signaling may act as a physical mediator of BC cells and CAFs motility through both homotypic and heterotypic interactions. CONCLUSIONS Our data demonstrate that RAGE up-regulation leads to migratory ability in ER-positive BC cells. Noteworthy, our findings suggest that EphA3 may be considered as a novel RAGE target gene facilitating BC invasion and scattering from the primary tumor mass. Overall, the current results may provide useful insights for more comprehensive therapeutic approaches in BC, particularly in obese and diabetic patients that are characterized by high RAGE levels.
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Affiliation(s)
- Marianna Talia
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Francesca Cirillo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Asia Spinelli
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Azzurra Zicarelli
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Domenica Scordamaglia
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Lucia Muglia
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Salvatore De Rosis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | | | | | - Ida Daniela Perrotta
- Department of Biology, Ecology and Earth Science, University of Calabria, 87036, Rende, Italy
| | - Mariano Davoli
- Department of Biology, Ecology and Earth Science, University of Calabria, 87036, Rende, Italy
| | - Rosanna De Rosa
- Department of Biology, Ecology and Earth Science, University of Calabria, 87036, Rende, Italy
| | - Rachele Macirella
- Department of Biology, Ecology and Earth Science, University of Calabria, 87036, Rende, Italy
| | - Elvira Brunelli
- Department of Biology, Ecology and Earth Science, University of Calabria, 87036, Rende, Italy
| | - Anna Maria Miglietta
- Breast and General Surgery Unit, Regional Hospital Cosenza, 87100, Cosenza, Italy
| | - Bruno Nardo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
- Breast and General Surgery Unit, Regional Hospital Cosenza, 87100, Cosenza, Italy
| | - Daniela Tosoni
- European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Salvatore Pece
- European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy
- Department of Oncology and Hemato-Oncology, Università Degli Studi Di Milano, 20142, Milan, Italy
| | - Ernestina Marianna De Francesco
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, 95122, Italy
| | - Antonino Belfiore
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, 95122, Italy
| | - Marcello Maggiolini
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy.
| | - Rosamaria Lappano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy.
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Rigiracciolo DC, Nohata N, Lappano R, Cirillo F, Talia M, Adame-Garcia SR, Arang N, Lubrano S, De Francesco EM, Belfiore A, Gutkind JS, Maggiolini M. Focal Adhesion Kinase (FAK)-Hippo/YAP transduction signaling mediates the stimulatory effects exerted by S100A8/A9-RAGE system in triple-negative breast cancer (TNBC). JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:193. [PMID: 35655319 PMCID: PMC9164429 DOI: 10.1186/s13046-022-02396-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/17/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Understanding the intricate signaling network involved in triple-negative breast cancer (TNBC) represents a challenge for developing novel therapeutic approaches. Here, we aim to provide novel mechanistic insights on the function of the S100A8/A9-RAGE system in TNBC. METHODS TNM plot analyzer, Kaplan-Meier plotter, Meta-analysis, GEPIA2 and GOBO publicly available datasets were used to evaluate the clinical significance of S100A8/A9 and expression levels of S100A8/A9, RAGE and Filamin family members in breast cancer (BC) subtypes. METABRIC database and Cox proportional hazard model defined the clinical impact of high RAGE expression in BC patients. Multiple bioinformatics programs identified the main enriched pathways within high RAGE expression BC cohorts. By lentiviral system, TNBC cells were engineered to overexpress RAGE. Western blotting, immunofluorescence, nucleus/cytoplasm fractionation, qRT-PCR, gene silencing and luciferase experiments were performed to identify signal transduction mediators engaged by RAGE upon stimulation with S100A8/A9 in TNBC cells. Proliferation, colony formation and transwell migration assays were carried out to evaluate the growth and migratory capacity of TNBC cells. Statistical analysis was performed by ANOVA and independent t-tests. RESULTS We found a remarkable high expression of S100A8 and S100A9 in BC, particularly in HER2-positive and TNBC, with the latter associated to worst clinical outcomes. In addition, high RAGE expression correlated with a poor overall survival in BC. Next, we determined that the S100A8/A9-RAGE system triggers FAK activation by engaging a cytoskeleton mechanosensing complex in TNBC cells. Through bioinformatics analysis, we identified the Hippo pathway as the most enriched in BC patients expressing high RAGE levels. In accordance with these data, we demonstrated the involvement of S100A8/A9-RAGE-FAK signaling in the control of Hippo/YAP activities, and we established the crucial contribution of RAGE-FAK-YAP circuitry in the growth and migratory effects initiated by S100A8/A9 in TNBC cells. CONCLUSIONS The present study provides novel mechanistic insights on RAGE actions in TNBC. Moreover, our findings suggest that RAGE-FAK-YAP transduction pathway could be exploited as a druggable system halting the aggressive TNBC subtype.
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Affiliation(s)
- Damiano Cosimo Rigiracciolo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy.,Moores Cancer Center, University of California, San Diego, La Jolla, CA, USA
| | | | - Rosamaria Lappano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Francesca Cirillo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Marianna Talia
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | | | - Nadia Arang
- Moores Cancer Center, University of California, San Diego, La Jolla, CA, USA
| | - Simone Lubrano
- Moores Cancer Center, University of California, San Diego, La Jolla, CA, USA
| | | | - Antonino Belfiore
- Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
| | - J Silvio Gutkind
- Moores Cancer Center, University of California, San Diego, La Jolla, CA, USA. .,Department of Pharmacology, University of California, San Diego, La Jolla, CA, USA.
| | - Marcello Maggiolini
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy.
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Ginckels P, Holvoet P. Oxidative Stress and Inflammation in Cardiovascular Diseases and Cancer: Role of Non-coding RNAs. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2022; 95:129-152. [PMID: 35370493 PMCID: PMC8961704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
High oxidative stress, Th1/Th17 immune response, M1 macrophage inflammation, and cell death are associated with cardiovascular diseases. Controlled oxidative stress, Th2/Treg anti-tumor immune response, M2 macrophage inflammation, and survival are associated with cancer. MiR-21 protects against cardiovascular diseases but may induce tumor growth by retaining the anti-inflammatory M2 macrophage and Treg phenotypes and inhibiting apoptosis. Down-regulation of let-7, miR-1, miR-9, miR-16, miR-20a, miR-22a, miR-23a, miR-24a, miR-26a, miR-29, miR-30a, miR-34a, miR-124, miR-128, miR-130a, miR-133, miR-140, miR-143-145, miR-150, miR-153, miR-181a, miR-378, and miR-383 may aid cancer cells to escape from stresses. Upregulation of miR-146 and miR-223 may reduce anti-tumor immune response together with miR-21 that also protects against apoptosis. MiR-155 and silencing of let-7e, miR-125, and miR-126 increase anti-tumor immune response. MiR expression depends on oxidative stress, cytokines, MYC, and TGF-β, and expression of silencing lncRNAs and circ-RNAs. However, one lncRNA or circ-RNA may have opposite effects by targeting several miRs. For example, PVT1 induces apoptosis by targeting miR-16a and miR-30a but inhibits apoptosis by silencing miR-17. In addition, levels of a non-coding RNA in a cell type depend not only on expression in that cell type but also on an exchange of microvesicles between cell types and tumors. Although we got more insight into the function of a growing number of individual non-coding RNAs, overall, we do not know enough how several of them interact in functional networks and how their expression changes at different stages of disease progression.
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Affiliation(s)
- Pieterjan Ginckels
- Department of Architecture, Brussels and Gent, KU Leuven, Leuven, Belgium
| | - Paul Holvoet
- Experimental Cardiology, KU Leuven, Leuven, Belgium,To whom all correspondence should be addressed: Paul Holvoet, Experimental
Cardiology, KU Leuven, Belgium; ; ORCID iD:
https://orcid.org/0000-0001-9201-0772
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Ding L, Yang X, Xia X, Li Y, Wang Y, Li C, Sun Y, Gao G, Zhao S, Sheng S, Liu J, Zheng JC. Exosomes Mediate APP Dysregulation via APP-miR-185-5p Axis. Front Cell Dev Biol 2022; 10:793388. [PMID: 35223832 PMCID: PMC8873530 DOI: 10.3389/fcell.2022.793388] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/18/2022] [Indexed: 12/25/2022] Open
Abstract
APP misexpression plays a crucial role in triggering a complex pathological cascade, leading to Alzheimer’s disease (AD). But how the expression of APP is regulated in pathological conditions remains poorly understood. In this study, we found that the exosomes isolated from AD mouse brain promoted APP expression in neuronal N2a cells. Moreover, exosomes derived from N2a cells with ectopic expression of APP (APP-EXO) also induced APP dysregulation in normal N2a cells. Surprisingly, the effects of APP-EXO on APP expression in recipient cells were not mediated by the direct transferring of APP gene products. Instead, the effects of APP-EXO were highly likely mediated by the reduction of the expression levels of exosomal miR-185-5p. We found that the 3′UTR of APP transcripts binds to miR-185-5p, therefore inhibiting the sorting of miR-185-5p to exosomes. N2a cell-derived exosomes with less amount of miR-185-5p exert similar roles in APP expression to APP-EXO. Lastly, we demonstrated a significant decline of serum exosomal miR-185-5p in AD patients and AD mice, versus the corresponding controls. Together, our results demonstrate a novel mechanism in the exosome-dependent regulation of APP, implying exosomes and exosomal miRNAs as potential therapeutic targets and biomarkers for AD treatment and diagnosis, respectively.
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Affiliation(s)
- Lu Ding
- Department of Anesthesiology, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Xiaoyu Yang
- Department of Anesthesiology, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Xiaohuan Xia
- Department of Anesthesiology, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai 10th People’s Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People’s Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- *Correspondence: Xiaohuan Xia, ; Jianhui Liu, ; Jialin C. Zheng,
| | - Yunxia Li
- Department of Anesthesiology, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Yi Wang
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai 10th People’s Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Chunhong Li
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Yiyan Sun
- Department of Anesthesiology, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Ge Gao
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Shu Zhao
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Shiyang Sheng
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Jianhui Liu
- Department of Anesthesiology, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- *Correspondence: Xiaohuan Xia, ; Jianhui Liu, ; Jialin C. Zheng,
| | - Jialin C. Zheng
- Department of Anesthesiology, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Center for Translational Neurodegeneration and Regenerative Therapy, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai 10th People’s Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People’s Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Collaborative Innovation Center for Brain Science, Tongji University, Shanghai, China
- *Correspondence: Xiaohuan Xia, ; Jianhui Liu, ; Jialin C. Zheng,
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Impact of Advanced Glycation End products (AGEs) and its receptor (RAGE) on cancer metabolic signaling pathways and its progression. Glycoconj J 2022; 38:717-734. [DOI: 10.1007/s10719-021-10031-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 02/07/2023]
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Li H, Shen H, Xie P, Zhang Z, Wang L, Yang Y, Yu Z, Cheng Z, Zhou J. Role of long intergenic non-protein coding RNA 00152 in pancreatic cancer glycolysis via the manipulation of the microRNA-185-5p/Krüppel-like factor 7 axis. J Cancer 2021; 12:6330-6343. [PMID: 34659523 PMCID: PMC8489139 DOI: 10.7150/jca.63128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/22/2021] [Indexed: 12/13/2022] Open
Abstract
The current study set out to investigate the role of long intergenic non-protein coding RNA (LINC) 00152 in pancreatic cancer (PC) cell glycolysis with the microRNA (miR)-185-5p/Krüppel-like factor 7 (KLF7) axis. Firstly, PC tissues and cells as well as the control ones were collected from 53 PC patients, and assessed for LINC00152 expression patterns. Besides, PC cells with the most differentially expressed LINC00152 were selected for further experiments. When LINC00152 was silenced or overexpressed, PC cell glucose consumption, lactic acid production, adenosine triphosphate and levels of glycolysis-associated enzymes were detected. In addition, the binding relation between LINC00152 and miR-185-5p as well as the target relation between miR-185-5p and KLF7 was clarified and validated. Additionally, xenograft transplantation was performed to confirm the in vitro experiments. It was found that LINC00152 was over-expressed in PC, and it predicted a poor prognosis. Besides, LINC00152 knockdown inhibited PC cell glycolysis. Moreover, LINC00152 could specifically targeted miR-185-5p. Meanwhile, LINC00152 exhaustion blocked PC cell glycolysis through the up-regulation of miR-185-5p. Lastly, LINC00152 inhibition targeted miR-185-5p to quench KLF7, therefore suppressing PC cell tumorigenesis and glycolysis. Collectively, our findings indicated that silencing LINC00152 restricted PC cell glycolysis via promoting miR-185-5p and reducing KLF7.
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Affiliation(s)
- Haifeng Li
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, Jiangsu Province, China
| | - Hao Shen
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, Jiangsu Province, China
| | - Peng Xie
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, Jiangsu Province, China
| | - Zheng Zhang
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, Jiangsu Province, China
| | - Lishan Wang
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital Southeast University, Nanjing, 210009, Jiangsu Province, China
| | - Yang Yang
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital Southeast University, Nanjing, 210009, Jiangsu Province, China
| | - Zeqian Yu
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital Southeast University, Nanjing, 210009, Jiangsu Province, China
| | - Zhangjun Cheng
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital Southeast University, Nanjing, 210009, Jiangsu Province, China
| | - Jiahua Zhou
- Department of Hepato-Pancreatico-Biliary Surgery, Zhongda Hospital Southeast University, Nanjing, 210009, Jiangsu Province, China
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Pujals M, Resar L, Villanueva J. HMGA1, Moonlighting Protein Function, and Cellular Real Estate: Location, Location, Location! Biomolecules 2021; 11:1334. [PMID: 34572547 PMCID: PMC8468999 DOI: 10.3390/biom11091334] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/27/2021] [Accepted: 09/01/2021] [Indexed: 12/13/2022] Open
Abstract
The gene encoding the High Mobility Group A1 (HMGA1) chromatin remodeling protein is upregulated in diverse cancers where high levels portend adverse clinical outcomes. Until recently, HMGA1 was assumed to be a nuclear protein exerting its role in cancer by transcriptionally modulating gene expression and downstream signaling pathways. However, the discovery of an extracellular HMGA1-RAGE autocrine loop in invasive triple-negative breast cancer (TNBC) cell lines implicates HMGA1 as a "moonlighting protein" with different functions depending upon cellular location. Here, we review the role of HMGA1, not only as a chromatin regulator in cancer and stem cells, but also as a potential secreted factor that drives tumor progression. Prior work found that HMGA1 is secreted from TNBC cell lines where it signals through the receptor for advanced glycation end products (RAGE) to foster phenotypes involved in tumor invasion and metastatic progression. Studies in primary TNBC tumors also suggest that HMGA1 secretion associates with distant metastasis in TNBC. Given the therapeutic potential to target extracellular proteins, further work to confirm this role in other contexts is warranted. Indeed, crosstalk between nuclear and secreted HMGA1 could change our understanding of tumor development and reveal novel therapeutic opportunities relevant to diverse human cancers overexpressing HMGA1.
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Affiliation(s)
- Mireia Pujals
- Vall d’Hebron Institute of Oncology (VHIO), 08035 Barcelona, Spain;
| | - Linda Resar
- Department of Medicine, Division of Hematology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Departments of Medicine (Hematology), Oncology, Pathology and Institute of Cellular Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Pathobiology, Cellular and Molecular Medicine and Human Genetics Graduate Programs, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Josep Villanueva
- Vall d’Hebron Institute of Oncology (VHIO), 08035 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
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Jiang X, Qin Y, Kun L, Zhou Y. The Significant Role of the Microfilament System in Tumors. Front Oncol 2021; 11:620390. [PMID: 33816252 PMCID: PMC8010179 DOI: 10.3389/fonc.2021.620390] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/26/2021] [Indexed: 12/11/2022] Open
Abstract
Actin is the structural protein of microfilaments, and it usually exists in two forms: monomer and polymer. Among them, monomer actin is a spherical molecule composed of a polypeptide chain, also known as spherical actin. The function of actin polymers is to produce actin filaments, so it is also called fibroactin. The actin cytoskeleton is considered to be an important subcellular filament system. It interacts with numerous relevant proteins and regulatory cells, regulating basic functions, from cell division and muscle contraction to cell movement and ensuring tissue integrity. The dynamic reorganization of the actin cytoskeleton has immense influence on the progression and metastasis of cancer as well. This paper explores the significance of the microfilament network, the dynamic changes of its structure and function in the presence of a tumor, the formation process around the actin system, and the relevant proteins that may be target molecules for anticancer drugs so as to provide support and reference for interlinked cancer treatment research in the future.
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Affiliation(s)
- Xin Jiang
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
| | - Yiming Qin
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
| | - Liu Kun
- Department of Neurosurgery, Brain Hospital of Hunan Province, Clinical Medical School, Hunan University of Chinese Medicine, Changsha, China
| | - Yanhong Zhou
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
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10
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Koleckova M, Ehrmann J, Bouchal J, Janikova M, Brisudova A, Srovnal J, Staffova K, Svoboda M, Slaby O, Radova L, Vomackova K, Melichar B, Veverkova L, Kolar Z. Epithelial to mesenchymal transition and microRNA expression are associated with spindle and apocrine cell morphology in triple-negative breast cancer. Sci Rep 2021; 11:5145. [PMID: 33664322 PMCID: PMC7933252 DOI: 10.1038/s41598-021-84350-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 02/08/2021] [Indexed: 02/06/2023] Open
Abstract
Triple negative breast cancers (TNBC) are a morphologically and genetically heterogeneous group of breast cancers with uncertain prediction of biological behavior and response to therapy. Epithelial to mesenchymal transition (EMT) is a dynamic process characterized by loss of typical epithelial phenotype and acquisition of mesenchymal characteristics. Aberrant activation of EMT can aggravate the prognosis of patients with cancer, however, the mechanisms of EMT and role of microRNAs (miRNAs) in EMT activation is still unclear. The aim of our study was to analyze miRNA expression within areas of TNBCs with cellular morphology that may be related to the EMT process and discuss possible associations. Out of all 3953 re-examined breast cancers, 460 breast cancers were diagnosed as TNBC (11.64%). With regard to complete tumor morphology preservation, the tissue samples obtained from core—cut biopsies and influenced by previous neoadjuvant therapy were excluded. We assembled a set of selected 25 cases to determine miRNA expression levels in relation to present focal spindle cell and apocrine cell morphology within individual TNBCs. We used descriptive (histological typing and morphology), morphometric, molecular (microdissection of tumor and non-tumor morphologies, RNA isolation and purification, microchip analysis) and bioinformatic analysis (including pathway analysis). The results were verified by quantitative real-time PCR (RT-qPCR) on an extended set of 70 TNBCs. The majority of TNBCs were represented by high—grade invasive carcinomas of no special type (NST) with medullary features characterized by well-circumscribed tumors with central necrosis or fibrosis and frequent tendency to spindle-cell and/or apocrine cell transformation. Apocrine and spindle cell transformation showed a specific miRNA expression profile in comparison to other tumor parts, in situ carcinoma or non-tumor structures, particularly down-regulated expression of hsa-miRNA-143-3p and hsa-miRNA-205-5p and up-regulated expression of hsa-miR-22-3p, hsa-miRNA-185-5p, and hsa-miR-4443. Apocrine cell tumor morphology further revealed decreased expression of hsa-miR-145-5p and increased expression of additional 14 miRNAs (e.g. hsa-miR-182-5p, hsa-miR-3135b and hsa-miR-4417). Pathway analysis for target genes of these miRNAs revealed several shared biological processes (i.e. Wnt signaling, ErbB signaling, MAPK signaling, endocytosis and axon guidance), which may in part contribute to the EMT and tumor progression. We provide the first miRNA expression profiling of specific tissue morphologies in TNBC. Our results demonstrate a specific miRNA expression profile of apocrine and spindle cell morphology which can exhibit a certain similarity with the EMT process and may also be relevant for prognosis and therapy resistance of TNBC.
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Affiliation(s)
- Marketa Koleckova
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Jiri Ehrmann
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Jan Bouchal
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic. .,Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic.
| | - Maria Janikova
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Aneta Brisudova
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Josef Srovnal
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Katerina Staffova
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Marek Svoboda
- Central European Institute of Technology, Masaryk University, 625 00, Brno, Czech Republic
| | - Ondrej Slaby
- Central European Institute of Technology, Masaryk University, 625 00, Brno, Czech Republic
| | - Lenka Radova
- Central European Institute of Technology, Masaryk University, 625 00, Brno, Czech Republic
| | - Katherine Vomackova
- Department of Surgery I, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Bohuslav Melichar
- Department of Oncology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Lucia Veverkova
- Department of Radiology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic
| | - Zdenek Kolar
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic. .,Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University and University Hospital, 775 15, Olomouc, Czech Republic.
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11
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Li S, Zhang J, Qian S, Wu X, Sun L, Ling T, Jin Y, Li W, Sun L, Lai M, Xu F. S100A8 promotes epithelial-mesenchymal transition and metastasis under TGF-β/USF2 axis in colorectal cancer. Cancer Commun (Lond) 2021; 41:154-170. [PMID: 33389821 PMCID: PMC7896751 DOI: 10.1002/cac2.12130] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/25/2020] [Accepted: 12/20/2020] [Indexed: 12/12/2022] Open
Abstract
Background The transforming growth factor‐β (TGF‐β) pathway plays a pivotal role in inducing epithelial‐mesenchymal transition (EMT), which is a key step in cancer invasion and metastasis. However, the regulatory mechanism of TGF‐β in inducing EMT in colorectal cancer (CRC) has not been fully elucidated. In previous studies, it was found that S100A8 may regulate EMT. This study aimed to clarify the role of S100A8 in TGF‐β‐induced EMT and explore the underlying mechanism in CRC. Methods S100A8 and upstream transcription factor 2 (USF2) expression was detected by immunohistochemistry in 412 CRC tissues. Kaplan‐Meier survival analysis was performed. In vitro, Western blot, and migration and invasion assays were performed to investigate the effects of S100A8 and USF2 on TGF‐β‐induced EMT. Mouse metastasis models were used to determine in vivo metastasis ability. Luciferase reporter and chromatin immunoprecipitation assay were used to explore the role of USF2 on S100A8 transcription. Results During TGF‐β‐induced EMT in CRC cells, S100A8 and the transcription factor USF2 were upregulated. S100A8 promoted cell migration and invasion and EMT. USF2 transcriptionally regulated S100A8 expression by directly binding to its promoter region. Furthermore, TGF‐β enhanced the USF2/S100A8 signaling axis of CRC cells whereas extracellular S100A8 inhibited the USF2/S100A8 axis of CRC cells. S100A8 expression in tumor cells was associated with poor overall survival in CRC. USF2 expression was positively related to S100A8 expression in tumor cells but negatively related to S100A8‐positive stromal cells. Conclusions TGF‐β was found to promote EMT and metastasis through the USF2/S100A8 axis in CRC while extracellular S100A8 suppressed the USF2/S100A8 axis. USF2 was identified as an important switch on the intracellular and extracellular S100A8 feedback loop.
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Affiliation(s)
- Si Li
- Department of Pathology and Pathophysiology, and Department of General Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Jun Zhang
- Department of Pathology and Pathophysiology, and Department of General Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Senmi Qian
- Department of Pathology and Pathophysiology, and Department of General Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Xuesong Wu
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Liang Sun
- Department of Pathology and Pathophysiology, and Department of General Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Tianyi Ling
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Yao Jin
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Wenxiao Li
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Lichao Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, P. R. China
| | - Maode Lai
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
| | - Fangying Xu
- Department of Pathology and Pathophysiology, and Department of General Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, P. R. China
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12
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Mohd Ali N, Yeap SK, Ho WY, Boo L, Ky H, Satharasinghe DA, Tan SW, Cheong SK, Huang HD, Lan KC, Chiew MY, Ong HK. Adipose MSCs Suppress MCF7 and MDA-MB-231 Breast Cancer Metastasis and EMT Pathways Leading to Dormancy via Exosomal-miRNAs Following Co-Culture Interaction. Pharmaceuticals (Basel) 2020; 14:ph14010008. [PMID: 33374139 PMCID: PMC7824212 DOI: 10.3390/ph14010008] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/27/2020] [Accepted: 11/30/2020] [Indexed: 02/07/2023] Open
Abstract
Globally, breast cancer is the most frequently diagnosed cancer in women, and it remains a substantial clinical challenge due to cancer relapse. The presence of a subpopulation of dormant breast cancer cells that survived chemotherapy and metastasized to distant organs may contribute to relapse. Tumor microenvironment (TME) plays a significant role as a niche in inducing cancer cells into dormancy as well as involves in the reversible epithelial-to-mesenchymal transition (EMT) into aggressive phenotype responsible for cancer-related mortality in patients. Mesenchymal stem cells (MSCs) are known to migrate to TME and interact with cancer cells via secretion of exosome- containing biomolecules, microRNA. Understanding of interaction between MSCs and cancer cells via exosomal miRNAs is important in determining the therapeutic role of MSC in treating breast cancer cells and relapse. In this study, exosomes were harvested from a medium of indirect co-culture of MCF7-luminal and MDA-MB-231-basal breast cancer cells (BCCs) subtypes with adipose MSCs. The interaction resulted in different exosomal miRNAs profiles that modulate essential signaling pathways and cell cycle arrest into dormancy via inhibition of metastasis and epithelial-to-mesenchymal transition (EMT). Overall, breast cancer cells displayed a change towards a more dormant-epithelial phenotype associated with lower rates of metastasis and higher chemoresistance. The study highlights the crucial roles of adipose MSCs in inducing dormancy and identifying miRNAs-dormancy related markers that could be used to identify the metastatic pattern, predict relapses in cancer patients and to be potential candidate targets for new targeted therapy.
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Affiliation(s)
- Norlaily Mohd Ali
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Cheras 43000, Malaysia; (N.M.A.); (L.B.); (S.K.C.)
| | - Swee Keong Yeap
- Marine Biotechnology, China-ASEAN College of Marine Sciences, Xiamen University Malaysia Campus, Jalan Sunsuria, Bandar Sunsuria, Sepang, Selangor 43900, Malaysia;
| | - Wan Yong Ho
- Faculty of Medicine and Health Sciences, University of Nottingham (Malaysia Campus), Semenyih 43500, Malaysia;
| | - Lily Boo
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Cheras 43000, Malaysia; (N.M.A.); (L.B.); (S.K.C.)
| | - Huynh Ky
- Department of Agriculture Genetics and Breeding, College of Agriculture and Applied Biology, Cantho University, Can Tho 900100, Vietnam;
| | - Dilan Amila Satharasinghe
- Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya 20400, Sri Lanka;
| | - Sheau Wei Tan
- Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Soon Keng Cheong
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Cheras 43000, Malaysia; (N.M.A.); (L.B.); (S.K.C.)
- Cryocord Sdn Bhd, Persiaran Cyberpoint Selatan, Cyberjaya 63000, Malaysia
| | - Hsien Da Huang
- School of Life and Health Sciences, Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen 518172, China;
| | - Kuan Chun Lan
- Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu 30010, Taiwan;
| | - Men Yee Chiew
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30010, Taiwan;
| | - Han Kiat Ong
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Cheras 43000, Malaysia; (N.M.A.); (L.B.); (S.K.C.)
- Correspondence:
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13
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Huang C, Wu YJ, He WF, Zhao SL, Ouyang YY, Ai XH, Liu ZQ, Tang SY. MiR-185-3p regulates epithelial mesenchymal transition via PI3K/Akt signaling pathway by targeting cathepsin D in gastric cancer cells. Transl Cancer Res 2020; 9:6988-7000. [PMID: 35117305 PMCID: PMC8799188 DOI: 10.21037/tcr-19-2133] [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: 10/11/2019] [Accepted: 09/11/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Recently research reported that miR-185-3p could serve as an independent prognosis factor in gastric cancer (GC). However, the functional role and underlying mechanism of miR-185-3p in GC and epithelial-mesenchymal transition (EMT) progression remains largely elusive. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was carried out to analyze the expression of miR-185-3p and cathepsin D in patient-derived GC samples and various GC cell lines. Scratch assay and Transwell assay were used to evaluate the migration ability. The influence of miR-185-3p on the cell cycle distribution and cell apoptosis was evaluated using flow cytometry. Western blotting assay was performed to detect the expression of EMT associated proteins and the activity of PI3K/Akt signaling pathway. Furthermore, the interaction between miR-185-3p and cathepsin D was explored by dual-luciferase reporter assay. RESULTS Our data revealed that miR-185-3p was down-regulated, while cathepsin D was up-regulated in both patient-derived GC samples and GC cells. Apart from inducing apoptosis, overexpression of miR-185-3p also inhibited EMT process and migration of GC cells. Mechanically, we firstly verified that miR-185-3p directly targeted the cathepsin D. Furthermore, miR-185-3p exerted its function on EMT process and migration via inhibiting cathepsin D to mediated PI3K/Akt signaling pathway. CONCLUSIONS Our findings suggested that miR-185-3p targeted cathepsin D inhibiting EMT process via PI3K/Akt signaling, which may serve as a potential prognosis factor and therapeutic target to reduce the malignancy of GCs.
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Affiliation(s)
- Cheng Huang
- Oncology Department, Brain Hospital of Hunan Province, Changsha, China
| | - Yang-Jie Wu
- Oncology Department of Medical, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Wei-Feng He
- Oncology Department, Brain Hospital of Hunan Province, Changsha, China
| | - Shun-Li Zhao
- Oncology Department, Brain Hospital of Hunan Province, Changsha, China
| | | | - Xiao-Hong Ai
- Oncology Department of Medical, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Zhi-Qi Liu
- Oncology Department, Brain Hospital of Hunan Province, Changsha, China
| | - San-Yuan Tang
- Oncology Department, Brain Hospital of Hunan Province, Changsha, China
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14
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Falzone L, Grimaldi M, Celentano E, Augustin LSA, Libra M. Identification of Modulated MicroRNAs Associated with Breast Cancer, Diet, and Physical Activity. Cancers (Basel) 2020; 12:cancers12092555. [PMID: 32911851 PMCID: PMC7564431 DOI: 10.3390/cancers12092555] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Healthy diet and physical activity are able to induce beneficial molecular modifications that have been associated with a lower risk of breast cancer (BC) incidence and a better prognosis for BC patients. Although the beneficial effects of healthy lifestyle have been described, the beneficial epigenetic modifications induced by dietary and exercise intervention in BC patients have not been elucidated yet. On these bases, the aim of the present study was to computationally identify microRNAs (miRNAs) strictly associated with BC progression and with dietary and exercise interventions. Through several computational approaches, a set of miRNAs modulated by diet and exercise and useful as diagnostic and prognostic biomarkers for BC was identified. The results obtained represent the starting point for further validation analyses performed on BC patients undergoing lifestyle interventions to propose the miRNAs here identified as novel biomarkers for BC management. Abstract Background: Several studies have shown that healthy lifestyles prevent the risk of breast cancer (BC) and are associated with better prognosis. It was hypothesized that lifestyle strategies induce microRNA (miRNA) modulation that, in turn, may lead to important epigenetic modifications. The identification of miRNAs associated with BC, diet, and physical activity may give further insights into the role played by lifestyle interventions and their efficacy for BC patients. To predict which miRNAs may be modulated by diet and physical activity in BC patients, the analyses of different miRNA expression datasets were performed. Methods: The GEO DataSets database was used to select miRNA expression datasets related to BC patients, dietary interventions, and physical exercise. Further bioinformatic approaches were used to establish the value of selected miRNAs in BC development and prognosis. Results: The analysis of datasets allowed the selection of modulated miRNAs associated with BC development, diet, and physical exercise. Seven miRNAs were also associated with the overall survival of BC patients. Conclusions: The identified miRNAs may play a role in the development of BC and may have a prognostic value in patients treated with integrative interventions including diet and physical activity. Validation of such modulated miRNAs on BC patients undergoing lifestyle strategies will be mandatory.
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Affiliation(s)
- Luca Falzone
- IRCCS Istituto Nazionale Tumori “Fondazione G. Pascale”, Epidemiology Unit, 80131 Naples, Italy; (M.G.); (E.C.); (L.S.A.A.)
- Correspondence: (L.F.); (M.L.); Tel.: +39-095-478-1278 (L.F.); +39-095-478-1271 (M.L.)
| | - Maria Grimaldi
- IRCCS Istituto Nazionale Tumori “Fondazione G. Pascale”, Epidemiology Unit, 80131 Naples, Italy; (M.G.); (E.C.); (L.S.A.A.)
| | - Egidio Celentano
- IRCCS Istituto Nazionale Tumori “Fondazione G. Pascale”, Epidemiology Unit, 80131 Naples, Italy; (M.G.); (E.C.); (L.S.A.A.)
| | - Livia S. A. Augustin
- IRCCS Istituto Nazionale Tumori “Fondazione G. Pascale”, Epidemiology Unit, 80131 Naples, Italy; (M.G.); (E.C.); (L.S.A.A.)
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
- Research Centre for Prevention, Diagnosis, and Treatment of Cancer, University of Catania, 95123 Catania, Italy
- Correspondence: (L.F.); (M.L.); Tel.: +39-095-478-1278 (L.F.); +39-095-478-1271 (M.L.)
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15
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Sun XH, Fan X, Hu KL, Hu WT. [Effects of RAB1A on the proliferation, invasion, and metastasis of tongue squamous cell carcinoma cells]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2020; 38:245-249. [PMID: 32573129 DOI: 10.7518/hxkq.2020.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVE This study aimed to investigate the molecular mechanism of RAB1A in the proliferation, invasion, and metastasis of human tongue squamous cell carcinoma. METHODS Western blot was used to detect the expression of RAB1A protein in human normal tongue epithelial cells (Hacat) and tongue squamous cell carcinoma Tca8113. The changes in RAB1A after plasmid transfection were also studied. The Tca8113 cells were named SiRAB1A/Tca8113 after RAB1A plasmid transfection. The expression of the epithelial-mesenchymal transition (EMT)-related markers of SiRAB1A/Tca8113 cells was also detected. CCK-8 assay was used to detect the proliferation of SiRAB1A/Tca8113 cells. Transwell and wound healing assays were used to detect the invasive and metastatic abilities of SiRAB1A/Tca8113 cells, respectively. RESULTS Western blot results showed that the expression of RAB1A in tongue squamous cell carcinoma cells was significantly higher than that in Hacat. RAB1A decreased significantly after SiRAB1A plasmid transfection. CCK-8 proliferation assay showed that the proliferation of SiRAB1A/Tca8113 cells also decreased significantly. Transwell and wound healing assays demonstrated that the invasive and metastatic abilities of SiRAB1A/Tca8113 cells decreased significantly, respectively. In addition, Western blot results demonstrated that RAB1A deletion significantly increased the expression of E-cadherin and inhibited the expression of Vimentin. CONCLUSIONS RAB1A could promote the proliferation, invasion, and metastasis of tongue squamous cell carcinoma cells.
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Affiliation(s)
- Xue-Hui Sun
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Hospital of Weifang Medical University, Weifang 261000, China
| | - Xin Fan
- Dept. of Stomatology, The Affiliated Hospital of Weifang Medical University, Weifang 261000, China
| | - Kai-Li Hu
- School of Stomatology, Weifang Medical University, Weifang 261021, China
| | - Wen-Ting Hu
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Hospital of Weifang Medical University, Weifang 261000, China
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16
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Guo W, Zhang B, Sun C, Duan HQ, Liu WX, Mu K, Zhao L, Li HR, Dong ZY, Cui Q. Circular RNA derived from TIMP2 functions as a competitive endogenous RNA and regulates intervertebral disc degeneration by targeting miR‑185‑5p and matrix metalloproteinase 2. Int J Mol Med 2020; 46:621-632. [PMID: 32626912 PMCID: PMC7307854 DOI: 10.3892/ijmm.2020.4621] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 05/04/2020] [Indexed: 12/27/2022] Open
Abstract
Intervertebral disc degeneration (IDD) is an important cause of lower back pain, although the underlying mechanisms remain poorly understood. The present study aimed to examine the role of a circular RNA derived from tissue inhibitor of metallopeptidases 2 (circ-TIMP2) in degenerative nucleus pulposus (NP) tissues, and to validate its function in cultured human NP cells. Overexpression of miR-185-5p in NP cells markedly inhibited the enhanced extracellular matrix (ECM) catabolism induced by tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) treatment. Bioinformatics analysis demonstrated that matrix metalloproteinase 2 (MMP2) was a potential target of miR-185-5p. MMP2 protein expression levels were increased following treatment with TNF-α and IL-1β in NP cells compared with those in untreated cells, and this effect was attenuated by transfection with miR-185-5p. Compared with normal NP tissues, IDD samples exhibited higher circ-TIMP2 expression levels. In addition, overexpres-sion of circ-TIMP2 promoted ECM catabolism and suppressed ECM anabolism. Furthermore, circ-TIMP2 sequestered miR-185-5p, which may potentially upregulate the target genes associated with ECM degradation. In conclusion, the results of the present study revealed that circ-TIMP2 promoted TNF-α- and IL-1β-induced NP cell imbalance between ECM anabolism and catabolism via miR-185-5p-MMP2 signaling. These findings provide a potential therapeutic option for the treatment of IDD.
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Affiliation(s)
- Wei Guo
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Bin Zhang
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Chao Sun
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Hui-Quan Duan
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Wei-Xiao Liu
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Kun Mu
- Department of Breast Surgery, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Ling Zhao
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Hao-Ran Li
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Zhan-Yin Dong
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Qing Cui
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
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17
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Değerli E, Torun V, Cansaran-Duman D. miR-185-5p response to usnic acid suppresses proliferation and regulating apoptosis in breast cancer cell by targeting Bcl2. Biol Res 2020; 53:19. [PMID: 32366289 PMCID: PMC7197166 DOI: 10.1186/s40659-020-00285-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 04/17/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Breast cancer is the most common cancer types among women. Recent researches have focused on determining the efficiency of alternative molecules and miRNAs in breast cancer treatment. The aim of this study was to determine the effect of usnic acid response-miR-185-5p on proliferation in the breast cancer cell and to determine its relationship with apoptosis pathway. METHODS The cell proliferation and cell apoptosis rate were significantly increased following the ectopic expression of miR-185-5p in BT-474 cells. Furthermore, the results of cell cycle assay performed by flow cytometry revealed that the transfection with miR-185-5p induced G1/S phase arrest. The apoptosis-related genes expression analysis was performed by qRT-PCR and the direct target of miR-185-5p in BT-474 cells was identified by western blot and luciferase reporter assay. RESULTS Our data showed that miR-185-5p can cause significant changes in apoptosis-related genes expression levels, suggesting that cell proliferation was suppressed by miR-185-5p via inducing apoptosis in breast cancer cells. According to western blot results, miR-185-5p lead to decrease BCL2 protein level in BT-474 cells and direct target of miR-185-5p was identified as BCL by luciferase reporter assay. CONCLUSION This study revealed that miR-185-5p may be an effective agent in the treatment of breast cancer.
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Affiliation(s)
- Elif Değerli
- Biotechnology Institute, Ankara University, Keçiören, 06135, Ankara, Turkey
| | - Vildan Torun
- Biotechnology Institute, Ankara University, Keçiören, 06135, Ankara, Turkey
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Association between Lymph Node Status and Expression Levels of Androgen Receptor, miR-185, miR-205, and miR-21 in Breast Cancer Subtypes. Int J Breast Cancer 2020; 2020:3259393. [PMID: 32373367 PMCID: PMC7195641 DOI: 10.1155/2020/3259393] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 03/25/2020] [Indexed: 01/04/2023] Open
Abstract
Breast cancer is the most commonly diagnosed cancer among women. Difficulties in treating breast cancer are associated with the occurrence of metastases at early stages of disease, leading to its further progression. Recent studies have shown that changes in androgen receptor (AR) and microRNAs' expressions are associated with mammary gland carcinogenesis, in particular, with the formation of metastases. Thus, to identify novel metastatic markers, we evaluated the expression levels of AR; miR-185 and miR-205, both of which have been confirmed to target AR; and miR-21, transcription of which is regulated by AR, in breast cancer samples (n = 89). Here, we show that the molecular subtypes of breast cancer differ in the expression profiles of AR and AR-associated microRNAs. In addition, the expression of AR and these microRNAs may depend on the expression of PR, ER, and HER2 receptors. Our results show that the possibility of using AR and microRNAs as markers depends on the tumor subtype: a decrease in AR expression may be the marker for the presence of lymph node metastases in patients with HER2-positive subtypes of breast cancer, and disturbance of miR-205, miR-185, and miR-21 expressions may be the marker in patients with a luminal B HER2-positive subtype. Cases with metastases in this type of breast cancer are characterized by a higher level of miR-205 and a lower level of miR-185 and miR-21 in tumor tissues compared to nonmetastatic cases. A decrease in the miR-185 level is also associated with lymph node metastasis in luminal B HER2-negative breast cancer. Thus, the expression levels of AR, miR-185, miR-205, and miR-21 can serve as markers to predict cancer spread to the lymph node in luminal B- and HER2-positive subtypes of breast cancer.
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Shi R, Wu P, Liu M, Chen B, Cong L. Knockdown of lncRNA PCAT6 Enhances Radiosensitivity in Triple-Negative Breast Cancer Cells by Regulating miR-185-5p/ TPD52 Axis. Onco Targets Ther 2020; 13:3025-3037. [PMID: 32308433 PMCID: PMC7152555 DOI: 10.2147/ott.s237559] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/06/2020] [Indexed: 02/06/2023] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have been reported to play essential roles in regulating the radiosensitivity of cancers. Prostate cancer-associated transcript 6 (PCAT6) exerts oncogenic roles in several tumors. However, the roles of PCAT6 and its underlying mechanism in regulating the radiosensitivity of triple-negative breast cancer (TNBC) have not been investigated. Methods The expression levels of PCAT6, microRNA-185-5p (miR-185-5p) and tumor protein D52 (TPD52) were determined by quantitative real-time polymerase chain reaction (qRT-PCR). Cell viability, apoptosis and colony formation were assessed by Cell Counting Kit-8 (CCK-8) assay, flow cytometry and colony formation assay, respectively. The interaction between miR-185-5p and PCAT6 or TPD52 was predicted by bioinformatics analysis and verified by dual-luciferase reporter assay. Western blot was carried out to detect the protein level of TPD52. Results PCAT6 and TPD52 were highly expressed and miR-185-5p was lowly expressed in TNBC tissues and cells, which was associated with an aggressive tumor phenotype in patients, affecting lymph node metastasis and clinical stage. PCAT6 or TPD52 knockdown or miR-185-5p overexpression enhanced the radiosensitivity of TNBC cells via inhibiting proliferation and inducing apoptosis. PCAT6 directly interacted with miR-185-5p and negatively regulated miR-185-5p expression. Moreover, TPD52 was confirmed as a target of miR-185-5p. Besides, PCAT6 regulated the radiosensitivity of TNBC cells through acting as a molecular sponge of miR-185-5p to modulate TPD52 expression. Conclusion Knockdown of PCAT6 promoted the radiosensitivity of TNBC cells through regulating miR-185-5p/TPD52 axis, providing a vital theoretical basis to improve the radiotherapy efficiency of TNBC.
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Affiliation(s)
- Rui Shi
- Liaoning University of Traditional Chinese Medicine, Shenyang 110032, Liaoning, People's Republic of China
| | - Peng Wu
- Liaoning University of Traditional Chinese Medicine, Shenyang 110032, Liaoning, People's Republic of China
| | - Miaomiao Liu
- Liaoning University of Traditional Chinese Medicine, Shenyang 110032, Liaoning, People's Republic of China
| | - Bing Chen
- Liaoning University of Traditional Chinese Medicine, Shenyang 110032, Liaoning, People's Republic of China
| | - Longjiao Cong
- Liaoning University of Traditional Chinese Medicine, Shenyang 110032, Liaoning, People's Republic of China
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20
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Wang YP, Huang Y, Hou T, Lu M. LncRNA XIST acts as a ceRNA sponging miR-185-5p to modulate pancreatic cancer cell proliferation via targeting CCND2. Transl Cancer Res 2020; 9:1427-1438. [PMID: 35117490 PMCID: PMC8798058 DOI: 10.21037/tcr.2020.01.26] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 12/13/2019] [Indexed: 11/06/2022]
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) have been proved to be involved in the occurrence and progression of various tumors including pancreatic cancer (PC). Growing evidence shows that lncRNA X inactive-specific transcript (XIST) functions as an oncogene in multiple tumorigenesis. However, the underlying mechanism of lncRNA XIST in the progression of PC remains elusive. METHODS Expression levels of XIST and miR-185-5p both in PC tissues or PC cells were determined using real-time quantitative PCR (qRT-PCR). Gain and loss-of-function of XIST or miR-185-5p was performed for further exploration. Moreover, colony formation assay was performed to assess cell proliferation. Flow cytometry analysis was performed to measure cell cycle and apoptosis. Dual-luciferase reporter assay was conducted to verify the correlation between XIST, miR-185-5p and CCND2, respectively. Additionally, western blot analysis was conducted to determine the expression pattern of apoptosis-related proteins and cell cycle-associated proteins. RESULTS Herein, we found that XIST expression was up-regulated while miR-185-5p was down-regulated both in PC tissues and cell lines, compared with that of controls. Moreover, there was a negative correlation between XIST and miR-185-5p. Following that, functional experiments displayed that knockdown of XIST or overexpression of miR-185-5p inhibited cell proliferation, induced cell cycle arrest and promoted apoptosis in PC cells. Furthermore, mechanistic experiments displayed that XIST could negatively regulate miR-185-5p via direct binding. In addition, CCND2 was shown to be a downstream target of miR-185-5p. Importantly, overexpression or knockdown of XIST significantly increased or decreased the expression of CCND2, while these effects were reversed by miR-185-5p. CONCLUSIONS Taken together, our study demonstrated that lncRNA XIST functions as an oncogene and exerts its regulation via miR-185-5p/CCND2 axis, promoting proliferation and inhibiting apoptosis in PC.
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Affiliation(s)
| | | | - Tao Hou
- Department of Oncology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Min Lu
- Department of Oncology, Second Xiangya Hospital, Central South University, Changsha 410011, China
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Rahman MM, Brane AC, Tollefsbol TO. MicroRNAs and Epigenetics Strategies to Reverse Breast Cancer. Cells 2019; 8:cells8101214. [PMID: 31597272 PMCID: PMC6829616 DOI: 10.3390/cells8101214] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/04/2019] [Accepted: 10/06/2019] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is a sporadic disease with genetic and epigenetic components. Genomic instability in breast cancer leads to mutations, copy number variations, and genetic rearrangements, while epigenetic remodeling involves alteration by DNA methylation, histone modification and microRNAs (miRNAs) of gene expression profiles. The accrued scientific findings strongly suggest epigenetic dysregulation in breast cancer pathogenesis though genomic instability is central to breast cancer hallmarks. Being reversible and plastic, epigenetic processes appear more amenable toward therapeutic intervention than the more unidirectional genetic alterations. In this review, we discuss the epigenetic reprogramming associated with breast cancer such as shuffling of DNA methylation, histone acetylation, histone methylation, and miRNAs expression profiles. As part of this, we illustrate how epigenetic instability orchestrates the attainment of cancer hallmarks which stimulate the neoplastic transformation-tumorigenesis-malignancy cascades. As reversibility of epigenetic controls is a promising feature to optimize for devising novel therapeutic approaches, we also focus on the strategies for restoring the epistate that favor improved disease outcome and therapeutic intervention.
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Affiliation(s)
- Mohammad Mijanur Rahman
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Andrew C Brane
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Trygve O Tollefsbol
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Center for Healthy Aging, University of Alabama Birmingham, 1530 3rd Avenue South, Birmingham, AL 35294, USA.
- Comprehensive Cancer Center, University of Alabama Birmingham, 1802 6th Avenue South, Birmingham, AL 35294, USA.
- Nutrition Obesity Research Center, University of Alabama Birmingham, 1675 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Diabetes Center, University of Alabama Birmingham, 1825 University Boulevard, Birmingham, AL 35294, USA.
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Ge P, Cao L, Yao YJ, Jing RJ, Wang W, Li HJ. lncRNA FOXD2-AS1 confers cisplatin resistance of non-small-cell lung cancer via regulation of miR185-5p-SIX1 axis. Onco Targets Ther 2019; 12:6105-6117. [PMID: 31534348 PMCID: PMC6681567 DOI: 10.2147/ott.s197454] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 04/29/2019] [Indexed: 12/11/2022] Open
Abstract
Background: Chemoresistance is a major obstacle for chemotherapy failure in non-small-cell lung cancer (NSCLC). lncRNAs are a class of pivotal regulators in various cancers, and the lncRNA FOXD2-AS1 is implicated in the progression of NSCLC. However, it is still unclear whether it regulates chemosensitivity. Methods: Expression levels of FOXD2-AS1, miR185-5p, and SIX1 mRNA were identified by reverse-transcription qPCR. CCK8 assay was performed to assess cell proliferation and chemosensitivity of cisplatin-resistant A549/DDP and H1299/DDP cells. Colony-forming assay was utilized to detect colony numbers. Cell migration and invasion ability were measured by transwell assay. The protein levels of LRP, Pgp, MRP1, and SIX1 were examined by Western blot assay. The correlation between FOXD2-AS1 and miR185-5p or miR185-5p and SIX1 were validated by bioinformatic, dual-luciferase, and RNA immunoprecipitation assays. Tumor xenografts were constructed to confirm the function and mechanism of FOXD2-AS1 in chemosensitivity of DDP-resistant NSCLC. Results: FOXD2-AS1 and SIX1 were upregulated and miR185-5p downregulated in DDP-resistant NSCLC. Absence of FOXD2-AS1 enhanced drug sensitivity of A549/DDP and H1299/DDP cells, reflected by the reduced colony formation, cell proliferation, migration, invasion, and drug resistance-associated protein expression. FOXD2-AS1 acted as a molecular sponge for miR185-5p and relieved the binding of miR185-5p and its target gene SIX1, leading to the derepression of SIX1 in A549/DDP and H1299/DDP cells. Rescue experiments validated the functional interaction among FOXD2-AS1, miR185-5p, and SIX1. Moreover, FOXD2-AS1 interference receded the growth of DDP-resistant NSCLC tumors in vivo. Conclusion: FOXD2-AS1/miR185-5p/SIX1 regulates the progression and chemosensitivity of DDP-resistant NSCLC, suggesting a potential therapeutic target for cisplatin-resistant NSCLC patients.
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Affiliation(s)
- Peng Ge
- Department of Cardiothoracic Surgery, Second Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Lei Cao
- Department of Gynecology, Second Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Yue-Juan Yao
- Department of Cardiothoracic Surgery, Second Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Rui-Jun Jing
- Department of Cardiothoracic Surgery, Second Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Wei Wang
- Department of Cardiothoracic Surgery, Second Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, People’s Republic of China
| | - Han-Jie Li
- Department of Cardiothoracic Surgery, Second Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, People’s Republic of China
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Zhao YS, Yang WC, Xin HW, Han JX, Ma SG. MiR-182-5p Knockdown Targeting PTEN Inhibits Cell Proliferation and Invasion of Breast Cancer Cells. Yonsei Med J 2019; 60:148-157. [PMID: 30666836 PMCID: PMC6342713 DOI: 10.3349/ymj.2019.60.2.148] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/31/2018] [Accepted: 11/04/2018] [Indexed: 12/11/2022] Open
Abstract
PURPOSE Breast cancer (BC) is one of the most common malignant tumors, affecting a significant number of women worldwide. MicroRNAs (miRNAs) have been reported to play important roles in tumorigenesis. The aim of this study was to determine the roles of miR-182-5p in BC progression. MATERIALS AND METHODS The expressions of miR-182-5p and phosphatase and tensin homolog deleted on chromosome 10 (PTEN) were measured in BC tissues and cells by quantitative real-time polymerase chain reaction or Western blot. Cell proliferation and invasion were detected by cell counting kit-8 assay and trans-well assay, respectively. The interaction between miR-182-5p and PTEN was probed by bioinformatics analysis, luciferase activity, and RNA immunoprecipitation. A murine xenograft model was established to investigate the role of miR-182-5p in BC progression in vivo. RESULTS An abundance of miR-182-5p was noted in BC tissues and cells. High expression of miR-182-5p was associated with poor survival. Abrogation of miR-182-5p inhibited cell proliferation and invasion in BC cells. Interestingly, PTEN was indicated as a target of miR-182-5p, and its restoration reversed miR-182-5p-mediated promotion of proliferation and invasion of BC cells. Moreover, depletion of miR-182-5p suppressed tumor growth via up-regulating PTEN expression in the murine xenograft model. CONCLUSION MiR-182-5p exhaustion blocked cell proliferation and invasion by regulating PTEN expression, providing a novel therapeutic avenue for treatment of BC.
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Affiliation(s)
- Yue Sheng Zhao
- Department of Breast Surgery, The Third Hospital Affiliated to Qiqihar Medical College, Qiqihar, China
| | - Wei Chao Yang
- Department of Breast Surgery, Jinan Zhangqiu District Hospital of Traditional Chinese Medicine, Zhangqi District, Jinan, China
| | - Hong Wei Xin
- Department of General Surgery, Sixth People's Hospital of Ji'nan City, Jinan, China
| | - Ji Xia Han
- Department of General Surgery, Sixth People's Hospital of Ji'nan City, Jinan, China
| | - Su Gang Ma
- Department of Breast Surgery, Sixth People's Hospital of Ji'nan City, Jinan, China.
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