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Yang N, Zhang N, Lu G, Zeng S, Xing Y, Du L. RNA-binding proteins potentially regulate the alternative splicing of cell cycle-associated genes in proliferative diabetic retinopathy. Sci Rep 2024; 14:6731. [PMID: 38509306 PMCID: PMC10954754 DOI: 10.1038/s41598-024-57516-x] [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: 12/25/2023] [Accepted: 03/19/2024] [Indexed: 03/22/2024] Open
Abstract
RNA-binding proteins (RBPs) contribute to the pathogenesis of proliferative diabetic retinopathy (PDR) by regulating gene expression through alternative splicing events (ASEs). However, the RBPs differentially expressed in PDR and the underlying mechanisms remain unclear. Thus, this study aimed to identify the differentially expressed genes in the neovascular membranes (NVM) and retinas of patients with PDR. The public transcriptome dataset GSE102485 was downloaded from the Gene Expression Omnibus database, and samples of PDR and normal retinas were analyzed. A mouse model of oxygen-induced retinopathy was used to confirm the results. The top 20 RBPs were screened for co-expression with alternative splicing genes (ASGs). A total of 403 RBPs were abnormally expressed in the NVM and retina samples. Functional analysis demonstrated that the ASGs were enriched in cell cycle pathways. Cell cycle-associated ASEs and an RBP-AS regulatory network, including 15 RBPs and their regulated ASGs, were extracted. Splicing factor proline/glutamine rich (SFPQ), microtubule-associated protein 1 B (MAP1B), heat-shock protein 90-alpha (HSP90AA1), microtubule-actin crosslinking factor 1 (MACF1), and CyclinH (CCNH) expression remarkably differed in the mouse model. This study provides novel insights into the RBP-AS interaction network in PDR and for developing screening and treatment options to prevent diabetic retinopathy-related blindness.
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Affiliation(s)
- Ning Yang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ningzhi Zhang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Guojing Lu
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Siyu Zeng
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lei Du
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, China.
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2
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Li X, An W, Pan H, Fan Y, Huang H, Wang Y, Shen W, Zu L, Meng F, Zhou X. Wilms' tumour gene 1 (WT1) enhances non-small cell lung cancer malignancy and is inhibited by microRNA-498-5p. BMC Cancer 2023; 23:824. [PMID: 37667197 PMCID: PMC10476375 DOI: 10.1186/s12885-023-11295-2] [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: 03/27/2023] [Accepted: 08/12/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Wilms' tumour gene 1 (WT1) is clearly recognized as a tumour promoter in diversiform of human malignancies. Nevertheless, knowledge of its expression, functions and potential molecular mechanisms in non-small cell lung cancer (NSCLC) remains elusive. METHODS Differential expression of WT1 mRNA and protein between NSCLC and normal tissues were assessed by analyzing RNA-seq data from Oncomine and protein data from Human Protein Atlas, respectively. Subsequently, prognosis significance and immune cell infiltration were analyzed by Kaplan-Meier plotter and CIBERSORT. 60 pairs of local NSCLC tissues were involved to validate WT1 expression by quantitative PCR (qPCR) and Western blot. Moreover, Cell Counting Kit-8 (CCK-8), colony formation, transwell, dual luciferase reporter assays and in vivo xenograft tumour growth experiments were conducted to explore the function and mechanism of WT1 in NSCLC. RESULTS Our solid data indicated that WT1 was increased in NSCLC tissues and cell lines in comparison with their matched controls. In particular, its upregulation correlated with worse prognosis and immune infiltration of the patients. Functional assays demonstrated that knockdown of WT1 inhibited NSCLC malignancy, including inhibiting cell proliferation, survival and invasion. Further exploration discovered that microRNA-498-5p (miR-498-5p) was the upstream suppressor of WT1 by directly targeting the 3' untranslated region (UTR) of WT1 mRNA. Moreover, expression of miR-498-5p was notably decreased and inversely correlated with WT1 in NSCLC tissues. Finally, we proved that miR-498-5p was a potent tumour suppressor in NSCLC by suppressing cell proliferation, survival and invasion, while WT1 restoration could in turn disrupt this suppression both in vitro and in vivo. CONCLUSION The abnormal increase in WT1 contributes to the malignant properties of NSCLC cells, and miR-498-5p is a natural inhibitor of WT1. Our findings might facilitate the development of novel therapeutic strategies against NSCLC in the future.
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Grants
- No. 81302002, No. 82273019 to Xuebing Li; No. 81502166, No. 81972354, No. 82172901 to Xuexia Zhou National Natural Science Foundation of China
- No. 81302002, No. 82273019 to Xuebing Li; No. 81502166, No. 81972354, No. 82172901 to Xuexia Zhou National Natural Science Foundation of China
- No. 18JCYBJC92100, to Xuebing Li; No. 21JCQNJC01440, to Xuexia Zhou; No. 17JCYBJC25400, to Yaguang Fan; No. 17JCQNJC11700, to Hongli Pan Natural Science Foundation of Tianjin City
- No. 18JCYBJC92100, to Xuebing Li; No. 21JCQNJC01440, to Xuexia Zhou; No. 17JCYBJC25400, to Yaguang Fan; No. 17JCQNJC11700, to Hongli Pan Natural Science Foundation of Tianjin City
- No. 18JCYBJC92100, to Xuebing Li; No. 21JCQNJC01440, to Xuexia Zhou; No. 17JCYBJC25400, to Yaguang Fan; No. 17JCQNJC11700, to Hongli Pan Natural Science Foundation of Tianjin City
- No. 18JCYBJC92100, to Xuebing Li; No. 21JCQNJC01440, to Xuexia Zhou; No. 17JCYBJC25400, to Yaguang Fan; No. 17JCQNJC11700, to Hongli Pan Natural Science Foundation of Tianjin City
- No. CFC2020kyxm003, to Xuebing Li; No. CFC2020kyxm002, to Yaguang Fan Key Project of Cancer Foundation of China
- No. CFC2020kyxm003, to Xuebing Li; No. CFC2020kyxm002, to Yaguang Fan Key Project of Cancer Foundation of China
- No. ZYYFY2019022, to Fanrong Meng Foundation of Tianjin Medical University General Hospital
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Affiliation(s)
- Xuebing Li
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Wenzhe An
- Department of Neuropathology, Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Hongli Pan
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Yaguang Fan
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Hua Huang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Yixuan Wang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Wang Shen
- West China Hospital, Sichuan Lung Cancer Institute, Sichuan Lung Cancer Center, Sichuan University, Chengdu, China
| | - Lingling Zu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Fanrong Meng
- Tianjin Prenatal Diagnostic Center, Obstetrics and Gynecology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Xuexia Zhou
- Department of Neuropathology, Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.
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3
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Fatima SA, Nasim MT, Malik A, Rehman SU, Waris S, Rauf M, Ali SS, Haq F, Awan HM. In silico analysis and experimental validation shows negative correlation between miR-1183 and cell cycle progression gene 1 expression in colorectal cancer. PLoS One 2023; 18:e0289082. [PMID: 37540697 PMCID: PMC10403070 DOI: 10.1371/journal.pone.0289082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/11/2023] [Indexed: 08/06/2023] Open
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs that post-transcriptionally regulate gene expression by binding to the 3' untranslated regions (UTR) of target genes. Aberrant expression of miRNAs can lead to disease, including cancer. Colorectal cancer (CRC) is one of the leading causes of cancer-related deaths worldwide. Among several factors, differential expression of miRNA can have serious consequences on disease progression. This study was designed to computationally identify and experimentally verify strong miRNA candidates that could influence CRC progression. In silico analysis of publicly available gene expression microarray datasets revealed significant upregulation of miR-1183 in CRC. Comparison of mRNA microarray expression data with predicted miR-1183 targets led to the identification of cell cycle progression gene 1 (CCPG1) as strong, negatively correlated miR-1183 target. Expression analysis by means of quantitative PCR validated the inverse correlation between miR-1183 and CCPG1 in colorectal cancer tissues. CCPG1 indirectly modulates the cell cycle by interacting with the PH/DH domain of Dbs (Rho-specific guanine nucleotide exchange factor). Interestingly, the computational analysis also showed that miR-1183 is upregulated in liver and gastric cancer. This finding is notable as the liver and stomach are the primary metastatic sites for colorectal cancer and hepatocellular carcinoma respectively. This novel finding highlights the broader implications of miR-1183 dysregulation beyond primary CRC, potentially serving as a valuable prognostic marker and a therapeutic target for both primary and metastatic CRC.
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Affiliation(s)
- Syeda Alina Fatima
- Department of Biosciences, Cancer Genetics and Epigenetics Lab, COMSATS University Islamabad, Islamabad, Pakistan
| | - Mubeen Tabish Nasim
- Department of Biosciences, Cancer Genetics and Epigenetics Lab, COMSATS University Islamabad, Islamabad, Pakistan
| | - Ambrin Malik
- Department of Biosciences, Cancer Genetics and Epigenetics Lab, COMSATS University Islamabad, Islamabad, Pakistan
| | - Saif Ur Rehman
- Department of Biosciences, Cancer Genetics and Epigenetics Lab, COMSATS University Islamabad, Islamabad, Pakistan
| | | | - Manal Rauf
- Pakistan Institute of Medical Sciences, Islamabad, Pakistan
| | - Syed Salman Ali
- Combined Military Hospital, Kharian, Pakistan
- Department of Cellular Pathology, Royal London Hospital, Barts Health, NHS Trust, London, United Kingdom
| | - Farhan Haq
- Department of Biosciences, Cancer Genetics and Epigenetics Lab, COMSATS University Islamabad, Islamabad, Pakistan
- Division of Microbiology, Immunology and Glycobiology, Lund University, Lund, Sweden
| | - Hassaan Mehboob Awan
- Department of Biosciences, Cancer Genetics and Epigenetics Lab, COMSATS University Islamabad, Islamabad, Pakistan
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4
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Ahangar Davoodi N, Najafi S, Naderi Ghale-Noie Z, Piranviseh A, Mollazadeh S, Ahmadi Asouri S, Asemi Z, Morshedi M, Tamehri Zadeh SS, Hamblin MR, Sheida A, Mirzaei H. Role of non-coding RNAs and exosomal non-coding RNAs in retinoblastoma progression. Front Cell Dev Biol 2022; 10:1065837. [PMID: 36619866 PMCID: PMC9816416 DOI: 10.3389/fcell.2022.1065837] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Retinoblastoma (RB) is a rare aggressive intraocular malignancy of childhood that has the potential to affect vision, and can even be fatal in some children. While the tumor can be controlled efficiently at early stages, metastatic tumors lead to high mortality. Non-coding RNAs (ncRNAs) are implicated in a number of physiological cellular process, including differentiation, proliferation, migration, and invasion, The deregulation of ncRNAs is correlated with several diseases, particularly cancer. ncRNAs are categorized into two main groups based on their length, i.e. short and long ncRNAs. Moreover, ncRNA deregulation has been demonstrated to play a role in the pathogenesis and development of RB. Several ncRNAs, such as miR-491-3p, miR-613,and SUSD2 have been found to act as tumor suppressor genes in RB, but other ncRNAs, such as circ-E2F3, NEAT1, and TUG1 act as tumor promoter genes. Understanding the regulatory mechanisms of ncRNAs can provide new opportunities for RB therapy. In the present review, we discuss the functional roles of the most important ncRNAs in RB, their interaction with the genes responsible for RB initiation and progression, and possible future clinical applications as diagnostic and prognostic tools or as therapeutic targets.
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Affiliation(s)
- Nasrin Ahangar Davoodi
- Eye Research Center, Rassoul Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sajad Najafi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zari Naderi Ghale-Noie
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ashkan Piranviseh
- Brain and Spinal Cord Injury Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Samaneh Mollazadeh
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Sahar Ahmadi Asouri
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammadamin Morshedi
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran,School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
| | - Amirhossein Sheida
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran,School of Medicine, Kashan University of Medical Sciences, Kashan, Iran,*Correspondence: Amirhossein Sheida, ; Hamed Mirzaei, ,
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran,*Correspondence: Amirhossein Sheida, ; Hamed Mirzaei, ,
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5
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Ravichandran R, PriyaDharshini LC, Sakthivel KM, Rasmi RR. Role and regulation of autophagy in cancer. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166400. [PMID: 35341960 DOI: 10.1016/j.bbadis.2022.166400] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 02/07/2023]
Abstract
Autophagy is an intracellular self-degradative mechanism which responds to cellular conditions like stress or starvation and plays a key role in regulating cell metabolism, energy homeostasis, starvation adaptation, development and cell death. Numerous studies have stipulated the participation of autophagy in cancer, but the role of autophagy either as tumor suppressor or tumor promoter is not clearly understood. However, mechanisms by which autophagy promotes cancer involves a diverse range of modifications of autophagy associated proteins such as ATGs, Beclin-1, mTOR, p53, KRAS etc. and autophagy pathways like mTOR, PI3K, MAPK, EGFR, HIF and NFκB. Furthermore, several researches have highlighted a context-dependent, cell type and stage-dependent regulation of autophagy in cancer. Alongside this, the interaction between tumor cells and their microenvironment including hypoxia has a great potential in modulating autophagy response in favour to substantiate cancer cell metabolism, self-proliferation and metastasis. In this review article, we highlight the mechanism of autophagy and their contribution to cancer cell proliferation and development. In addition, we discuss about tumor microenvironment interaction and their consequence on selective autophagy pathways and the involvement of autophagy in various tumor types and their therapeutic interventions concentrated on exploiting autophagy as a potential target to improve cancer therapy.
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Affiliation(s)
- Rakesh Ravichandran
- Department of Biotechnology, PSG College of Arts and Science, Civil Aerodrome Post, Coimbatore 641 014, Tamil Nadu, India
| | | | - Kunnathur Murugesan Sakthivel
- Department of Biochemistry, PSG College of Arts and Science, Civil Aerodrome Post, Coimbatore 641 014, Tamil Nadu, India
| | - Rajan Radha Rasmi
- Department of Biotechnology, PSG College of Arts and Science, Civil Aerodrome Post, Coimbatore 641 014, Tamil Nadu, India.
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6
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ER-phagy in the Occurrence and Development of Cancer. Biomedicines 2022; 10:biomedicines10030707. [PMID: 35327508 PMCID: PMC8945671 DOI: 10.3390/biomedicines10030707] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/11/2022] [Accepted: 03/16/2022] [Indexed: 02/04/2023] Open
Abstract
As an organelle, the endoplasmic reticulum (ER) is closely related to protein synthesis and modification. When physiological or pathological stimuli induce disorders of ER function, misfolded proteins trigger ER-phagy, which is beneficial for restoring cell homeostasis or promoting cell apoptosis. As a double-edged sword, ER-phagy actively participates in various stages of development and progression in tumor cells, regulating tumorigenesis and maintaining tumor cell homeostasis. Through the unfolded protein response (UPR), the B cell lymphoma 2 (BCL-2) protein family, the Caspase signaling pathway, and others, ER-phagy plays an initiating role in tumor occurrence, migration, stemness, and proliferation. At the same time, many vital proteins strongly associated with ER-phagy, such as family with sequence similarity 134 member B (FAM134B), translocation protein SEC62 (SEC62), and C/EBP-homologous protein (CHOP), can produce a marked effect in many complex environments, which ultimately lead to entirely different tumor fates. Our article comprehensively focused on introducing the relationship and interaction between ER-phagy and cancers, as well as their molecular mechanism and regulatory pathways. Via these analyses, we tried to clarify the possibility of ER-phagy as a potential target for cancer therapy and provide ideas for further research.
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Yan J, Deng Y, Cai Y, Cong W. LncRNA MIR17HG
promotes the proliferation, migration, and invasion of retinoblastoma cells by up‐regulating
HIF
‐1α expression via sponging
miR
‐155‐5p. Kaohsiung J Med Sci 2022; 38:554-564. [PMID: 35253975 DOI: 10.1002/kjm2.12523] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 01/06/2022] [Accepted: 02/08/2022] [Indexed: 12/28/2022] Open
Affiliation(s)
- Jian Yan
- Department of Ophthalmology Longgang District Central Hospital Shenzhen China
| | - Yi‐Xuan Deng
- Department of Ophthalmology Longgang District Central Hospital Shenzhen China
| | - Yu‐Lian Cai
- Department of Ophthalmology Longgang District Central Hospital Shenzhen China
| | - Wen‐Dong Cong
- Department of Neurology Longgang District Central Hospital Shenzhen China
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8
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Liu L, Xiao C, Sun Q. MiRNA-375 inhibits retinoblastoma progression through targeting ERBB2 and inhibiting MAPK1/MAPK3 signalling pathway. Cutan Ocul Toxicol 2021; 41:1-10. [PMID: 34711123 DOI: 10.1080/15569527.2021.1994587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Increasing evidence has shown that the dysregulation of miRNAs is involved in the pathogenesis of retinoblastoma (RB). This present study was aimed to investigate the significance of miR-375 in RB progression, and the underlying mechanism. MATERIALS AND METHODS The miR-375 expression was detected by RT-PCR. CCK-8 assay and transwell assays were used to measure RB cell viability, migration, and invasion. The downstream gene of miR-375 was verified by luciferase reporter assay. Western blot was applied to detect the related proteins of MAPK1/MAPK3 signalling pathway. RESULTS MiR-375 was decreased significantly in RB tissues, and its down-regulation was associated with the poor prognosis of RB patients. Over-expression of miR-375 inhibited RB cell proliferation, migration, and invasion. More importantly, miR-375 modulated ERBB2 expression negatively, and ERBB2 was confirmed as the target of miR-375. Moreover, ERBB2 overturned the inhibitory effect of miR-375 mimic on the progression of RB. MiR-375 mimic suppressed RB progression via inhibiting the activation of MAPK1/MAPK3 signalling pathway. CONCLUSIONS MiR-375 inhibited RB progression through targeting ERBB2 and suppressing MAPK1/MAPK3 signalling pathway, which might be a new target for the clinical treatment strategy.
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Affiliation(s)
- Lei Liu
- Department of Fundus Disease, Aier Eye Hospital Chongqing Children's, Chongqing City, China
| | - Chunlin Xiao
- Department of Ocular Surface and Cornea, Chongqing Aier Eye Hospital, Chongqing City, China
| | - Qiuyun Sun
- Department of Oculoplasty & Lacrimal System, Chongqing Aier Eye Hospital, Chongqing City, China
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9
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Li D, Yan M, Sun F, Song J, Hu X, Yu S, Tang L, Deng S. miR-498 inhibits autophagy and M2-like polarization of tumor-associated macrophages in esophageal cancer via MDM2/ATF3. Epigenomics 2021; 13:1013-1030. [PMID: 34114479 DOI: 10.2217/epi-2020-0341] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Structured abstract Aim: To elucidate the effect of miRNA (miR)-498 on autophagy and M2-like macrophage polarization in esophageal cancer. Methods: Autophagy was evaluated in esophageal cancer. Macrophage markers specific for M1- or M2-like phenotype were determined. The binding relationships between miR-498 and MDM2, MDM2 and ATF3 were analyzed. Results: miR-498 was downregulated in esophageal cancer and was associated with disease-free and overall patient survival. Enhanced miR-498 reduced LC3I conversion to LC3II and increased p62 accumulation in KYSE-150 cells, and increased macrophage polarization to M2-like phenotype in KYSE-150 and TAM co-culture. miR-498 inhibited MDM2-mediated ATF3 degradation, thus suppressing autophagy and M2-like polarization of macrophages in esophageal cancer. Conclusion: miR-498 may inhibit autophagy and M2-like polarization of macrophages to suppress esophageal cancer via MDM2/ATF3.
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Affiliation(s)
- Dezhi Li
- Department of Oncology, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, 322000, Zhejiang, PR China.,Department of Oncology, North Sichuan Medical College Affiliated Nanchong Central Hospital, Nanchong, 637000, Sichuan, PR China
| | - Min Yan
- Department of Oncology, North Sichuan Medical College Affiliated Nanchong Central Hospital, Nanchong, 637000, Sichuan, PR China
| | - Fengfei Sun
- Department of Oncology, North Sichuan Medical College Affiliated Nanchong Central Hospital, Nanchong, 637000, Sichuan, PR China.,Department of Oncology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, PR China
| | - Junmei Song
- Department of Oncology, North Sichuan Medical College Affiliated Nanchong Central Hospital, Nanchong, 637000, Sichuan, PR China
| | - Xingsheng Hu
- Department of Oncology, North Sichuan Medical College Affiliated Nanchong Central Hospital, Nanchong, 637000, Sichuan, PR China.,Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, PR China
| | - Sijia Yu
- Department of Oncology, North Sichuan Medical College Affiliated Nanchong Central Hospital, Nanchong, 637000, Sichuan, PR China
| | - Lina Tang
- Department of Oncology, North Sichuan Medical College Affiliated Nanchong Central Hospital, Nanchong, 637000, Sichuan, PR China
| | - Shishan Deng
- Department of Anatomy, School of Basic Medicine, North Sichuan Medical College, Nanchong, 637000, Sichuan, PR China
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10
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Huang N, Li C, Sun W, Wu J, Xiao F. Long non-coding RNA TUG1 participates in LPS-induced periodontitis by regulating miR-498/RORA pathway. Oral Dis 2020; 27:600-610. [PMID: 32762066 DOI: 10.1111/odi.13590] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/27/2020] [Accepted: 07/13/2020] [Indexed: 02/06/2023]
Abstract
AIM This study was aimed to investigate the role of TUG1 in LPS-stimulated hPDLCs and to evaluate the potential functions of TUG1 in the pathogenesis of periodontitis. METHODS LPS-stimulated hPDLCs were established as the cell model. CCK-8 assay was performed to assess cell proliferation ability. Flow cytometry was performed to detect cell cycle distribution, and quantitative RT-PCR and Western blotting were conducted to measure gene expressions. ELISA kits were used to evaluate the production of inflammatory cytokines. The putative binding site between TUG1 and miR-498 was verified using luciferase reporter and RNA immunoprecipitation assays. RESULTS TUG1 was downregulated upon LPS stimulation in hPDLCs. TUG1 overexpression promoted cell proliferation through regulating the cell cycle distribution, along with the decreased expression of p21 and increased expression of CDK2 and cyclin D1. Besides, TUG1 overexpression decreased the production of inflammatory cytokines. The effects were opposite upon TUG1 knockdown. TUG1 negatively regulated its target miR-498, and influenced the expression of RORA, the direct target of miR-498. Simultaneous TUG1 overexpression and miR-498 reversed the effect of TUG1 overexpression alone on alleviating LPS-induced cell injury and inhibition of Wnt/β-catenin signaling, which was further changeover after co-overexpression with RORA. CONCLUSION Therefore, TUG1 could protect against periodontitis via regulating miR-498/RORA mediated Wnt/β-catenin signaling.
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Affiliation(s)
- Nannan Huang
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Chanxiu Li
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Wenjuan Sun
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Jian Wu
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Feng Xiao
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
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11
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Circ_0068655 Promotes Cardiomyocyte Apoptosis via miR-498/PAWR Axis. Tissue Eng Regen Med 2020; 17:659-670. [PMID: 32767028 DOI: 10.1007/s13770-020-00270-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/29/2020] [Accepted: 05/02/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The cardiomyocyte apoptosis is considered as one of major contributions to cardiac remodeling after myocardial infarction (MI). Numerous studies find that circular RNAs (circRNAs) play pivotal roles in a variety of biological functions. However, the role of circ_0068655 in MI and human induced pluripotent stem-derived cardiomyocytes (HCMs) remains unknown. METHODS The expression of circ_0068655, miR-498, and PRKC apoptosis WT1 regulator (PAWR) in human MI heart tissues and hypoxia subjected HCMs was evaluated with qRT-PCR and Western blot. The effects of circ_0068655 on hypoxia-induced apoptotic death and cell migration in HCMs were evaluated with qRT-PCR, cell viability, cell death ELISA (POD), and Caspase-3 activity assay, and Trans-well assay, respectively. Furthermore, luciferase assay, qRT-PCR, biotin-labeled miRNA pulldown assay, and Western blot were employed in the functional studies. RESULTS We found that the expression of circ_0068655 and PAWR was enhanced in MI patients and hypoxia subjected HCMs; by contrast, the expression of miR-498 decreased. Inhibited expression of circ_0068655 in HMCs counteracted hypoxia-induced apoptotic death and impaired cell migration, in sharp contrast to circ_0068655 knockdown. We identified that circ_0068655 sponged an endogenous miR-498 to sequester and inhibit its activity, leading to the increased PAWR expression. CONCLUSIONS Our findings reveal that the expression of circ_0068655 can promote cardiomyocyte apoptosis through the modulation of miR-498-PAWR axis in vitro, which highlights the diagnostic and therapeutic value of circ_0068655 in patients with MI.
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Xu Q. The Potential Tumor Promotional Role of circVAPA in Retinoblastoma via Regulating miR-615-3p and SMARCE1. Onco Targets Ther 2020; 13:7839-7849. [PMID: 32848418 PMCID: PMC7417935 DOI: 10.2147/ott.s254925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/04/2020] [Indexed: 01/13/2023] Open
Abstract
Background Growing evidence reveals that circular RNAs (circRNAs) play roles in cancer development. However, the effects and possible mechanisms of circRNAs in retinoblastoma (RB) are far from clear. Methods circVAPA expression pattern was identified by RT-qPCR. circVAPA induced effects on RB cells were tested by CCK-8, clone forming, flow cytometry and transwell assays. Bioinformatics assay, rescue experiments and dual-luciferase tests were applied for mechanism exploration. Additionally, mouse models were established for in vivo assays. Results circVAPA was upregulated in human RB specimen and RB cell lines, and was correlated with poor outcomes of Rb patients. Knockdown of circVAPA could suppress the malignant phenotypes of RB. Mechanistic experiments demonstrated that miR-615-3p could reverse the circVAPA induced effects on RB cells, and the downstream oncogene SMARCE1 was positively regulated by circVAPA via miR-615-3p. Further, in vivo analysis confirmed the findings. Conclusion In summary, circVAPA promoted RB proliferation and metastasis by sponging miR-615-3p, thereby upregulating SMARCE1. CircVAPA was a potential biomarker for Rb therapy.
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Affiliation(s)
- Qibin Xu
- Department of Ophthalmology, Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine (Hangzhou Red Cross Hospital), Hangzhou, Zhejiang Province, People's Republic of China
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13
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Li Z, Feng Y, Zhang Z, Cao X, Lu X. TMPO-AS1 promotes cell proliferation of thyroid cancer via sponging miR-498 to modulate TMPO. Cancer Cell Int 2020; 20:294. [PMID: 32669970 PMCID: PMC7346673 DOI: 10.1186/s12935-020-01334-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 06/09/2020] [Indexed: 01/14/2023] Open
Abstract
Background Thyroid cancer (TC) is the most frequent endocrine malignancy. Long noncoding RNAs (lncRNAs) have been confirmed to act as significant roles in tumor development. The role of lncRNA TMPO-AS1 in TC is still unclear, so it remains to be explored. The aim of the research is to investigate the role and regulatory mechanism of TMPO-AS1 in TC. Methods TMPO-AS1 and TMPO expression in TC tumors and cells was detected by TCGA database and QRT-PCR assay respectively. CCK-8, EDU, TUNEL and western blot assays were conducted to identify the biological functions of TMPO-AS1 in TC. Luciferase reporter and RNA pull down assays were conducted to measure the interaction among TMPO-AS1, TMPO and miR-498. Results TMPO-AS1 was overexpressed in TC tissues and cell lines. Knockdown of TMPO-AS1 suppressed cell growth and accelerated cell apoptosis in TC. Furthermore, downregulation of TMPO-AS1 suppressed TMPO expression in TC. The data suggested that TMPO expression was upregulated in TC tissues and cell lines and was positively correlated with TMPO-AS1 expression in TC. Furthermore, the expression of miR-498 presented low expression in TC cells. And miR-498 expression was negatively regulated by TMPO-AS1, meanwhile, TMPO expression was negatively regulated by miR-498 in TC cells. Besides, it was confirmed that TMPO-AS1 could bind with miR-498 and TMPO in TC cells. In addition, it was validated that TMPO-AS1 elevated the levels of TMPO via sponging miR-498 in TC cells. Conclusions TMPO-AS1 promotes cell proliferation in TC via sponging miR-498 to modulate TMPO.
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Affiliation(s)
- Zhenyu Li
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Zhongyuan District, Zhengzhou, 450000 Henan China.,Department of Thyroid Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000 Henan China
| | - Yun Feng
- Department of Thyroid Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000 Henan China
| | - Zhen Zhang
- Department of Thyroid Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000 Henan China
| | - Xiaozhong Cao
- Department of Thyroid Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000 Henan China
| | - Xiubo Lu
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Zhongyuan District, Zhengzhou, 450000 Henan China
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Wang Z, Liu J, Wang R, Wang Q, Liang R, Tang J. Long Non-Coding RNA Taurine Upregulated Gene 1 (TUG1) Downregulation Constrains Cell Proliferation and Invasion through Regulating Cell Division Cycle 42 (CDC42) Expression Via MiR-498 in Esophageal Squamous Cell Carcinoma Cells. Med Sci Monit 2020; 26:e919714. [PMID: 32139664 PMCID: PMC7077061 DOI: 10.12659/msm.919714] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is a malignant tumor of the gastrointestinal tract. Taurine upregulated gene 1 (TUG1), a long non-coding (lnc) RNA, also known as LIN00080 or TI-227H, was connected with the tumorigenesis of various diseases. Hence, we plumed the role and molecular mechanism of TUG1 in the progression of ESCC. Material/Methods Expression patterns of TUG1, microRNA-498 (miR-498), and cell division cycle 42 (CDC42) mRNA were assessed using quantitative real time polymerase chain reaction (qRT-PCR). The expression level of CDC42 protein was evaluated via western blot analysis. Cell proliferation and invasion were determined with Cell Counting Kit-8 (CCK-8) assay or Transwell assay. The relationship between miR-498 and TUG1 or CDC42 was predicted by online bioinformatics database LncBase Predicted v.2 or microT-CDS and confirmed through dual-luciferase reporter system or RNA immunoprecipitation assay (RIP). Results TUG1 and CDC42 were upregulated while miR-498 was strikingly decreased in ESCC tissues and cells (P<0.0001). Besides, TUG1 suppression blocked the proliferation and invasion of ESCC cells (P<0.001). Importantly, TUG1 decrease restrained CDC42 expression via binding to miR-498 in ESCC cells. Also, the suppressive impacts of TUG1 silencing on the proliferation and invasion of ESCC cells were mitigated by miR-498 reduction. Meanwhile, the repression of proliferation and invasion induced by miR-498 elevation was weakened by CDC42 overexpression. Conclusions Inhibition of TUG1 hampered cell proliferation and invasion by downregulating CDC42 via upregulating miR-498 in ESCC cells. Thus, TUG1 might be an underlying therapeutic target for ESCC.
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Affiliation(s)
- Zhifeng Wang
- Department of Digestive Endoscopy, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China (mainland)
| | - Jingmei Liu
- Department of Gastroenterology, Shanxi Cancer Hospital, Taiyuan, Shanxi, China (mainland)
| | - Rong Wang
- Department of Digestive Endoscopy, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China (mainland)
| | - Qinqin Wang
- Department of Normal Surgical, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China (mainland)
| | - Rong Liang
- Department of Digestive Endoscopy, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China (mainland)
| | - Jinliang Tang
- Department of Gastroenterology, Jincheng People's Hospital, Jincheng, Shanxi, China (mainland)
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You D, Wang D, Liu P, Chu Y, Zhang X, Ding X, Li X, Mao T, Jing X, Tian Z, Pan Y. MicroRNA-498 inhibits the proliferation, migration and invasion of gastric cancer through targeting BMI-1 and suppressing AKT pathway. Hum Cell 2020; 33:366-376. [PMID: 32056164 DOI: 10.1007/s13577-019-00313-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022]
Abstract
Recently, microRNA-498 (miR-498) plays important effect in human cancers. Nonetheless, the role of miR-498 is still unclear in gastric cancer (GC). Therefore, this study was designed to investigate the function of miR-498 in GC tissues and cell lines (SGC-7901, BGC-823, MGC-803). The expressions of miR-498 and BMI-1 were examined in GC tissues via the RT-qPCR assay. The function of miR-498 was investigated through MTT and transwell assays. The relationship between miR-498 and BMI-1 was testified by dual luciferase assay. The protein expression of EMT markers, AKT pathway markers and BMI-1 was measured through western blot. The expression of miR-498 was decreased in GC tissues which predicted poor prognosis of GC patients. Moreover, functional analyses show that the overexpression of miR-498 inhibited the progression of GC. Furthermore, BMI-1 was a direct target of miR-498 which was upregulated in GC. Especially, the upregulation of BMI-1 recovered the suppressive effect of miR-498 in GC. In addition, miR-498 inhibited the metastasis and proliferation of GC cells through blocking EMT and AKT pathway. MiR-498, by targeting BMI-1, presents a plethora of tumor suppressor activities in GC cells.
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Affiliation(s)
- Dong You
- Department of Radiotherapy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, 26400, Shandong Province, China
| | - Dawei Wang
- Department of Radiotherapy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, 26400, Shandong Province, China
| | - Peiji Liu
- Department of Radiotherapy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, 26400, Shandong Province, China
| | - Yuning Chu
- Qingdao University Medical College, Qingdao, Shandong Province, China
| | - Xueying Zhang
- Qingdao University Medical College, Qingdao, Shandong Province, China
| | - Xueli Ding
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Xiaoyu Li
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Tao Mao
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Xue Jing
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Zibin Tian
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, Shandong Province, China
| | - Yinghua Pan
- Department of Radiology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, East of Yuhuangding Road, Yantai, 26400, Shandong Province, China.
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Li W, Jiang H. Up-regulation of miR-498 inhibits cell proliferation, invasion and migration of hepatocellular carcinoma by targeting FOXO3. Clin Res Hepatol Gastroenterol 2020; 44:29-37. [PMID: 31208923 DOI: 10.1016/j.clinre.2019.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/25/2019] [Accepted: 04/29/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND To unravel the fundamental role of miR-498 in the context of hepatocellular carcinoma cells and understands underlying potential mechanism. METHODS Relative viability was interrogated using MTT method and cell proliferation was determined with colony formation assay. The protein levels of cleaved Caspase-3, Bcl-2, Cyclin D, CDK4, FOXO3 and β-actin were analyzed by western blotting. Cell invasion and migration was evaluated by transwell assay and wound healing, respectively. The relative abundance of Cyclin D, CDK4, FOXO3 and miR-498 transcripts was measured using real-time PCR. The regulatory action of miR-498 on FOXO3 expression was analyzed with luciferase reporter. RESULTS Ectopic over-expression of miR-498 significantly inhibited viability and proliferation, suppressed cell migration and invasion, delayed cell cycle progression. We further identified FOXO3 as downstream target gene of miR-498, and positively modulated FOXO3 translation in miR-498-proficient cells consequently contributed to its anti-tumoral properties. CONCLUSIONS Our data highlighted the tumor suppressor role of miR-498-FOXO3 signaling in hepatocellular carcinoma cells, which might hold promise for therapeutic exploitation.
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Affiliation(s)
- Wenqin Li
- Department of gastroenterology, the Second Clinical Medical College, Yangtze University, 434020 Jingzhou, Hubei, China
| | - Hua Jiang
- The Ninth People's Hospital of Chongqing, No 69, Jialing Village, 400700 Chongqing, Beibei District, China.
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Wang L, Wang L, Li L, Zhang H, Lyu X. MicroRNA‑330 is downregulated in retinoblastoma and suppresses cell viability and invasion by directly targeting ROCK1. Mol Med Rep 2019; 20:3440-3447. [PMID: 31432120 DOI: 10.3892/mmr.2019.10545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 02/08/2019] [Indexed: 11/06/2022] Open
Abstract
Abnormal expression of microRNAs (miRNAs/miRs) has been previously reported in various types of human cancer, such as retinoblastoma (RB). Dysregulated miRNAs have been demonstrated to be important epigenetic regulators of numerous biological events associated with RB. Therefore, improved understanding of the precise roles of miRNAs in RB is required to develop novel therapeutic strategies for the treatment of patients with this disease. In the present study, reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to detect miR‑330 expression in RB tissues and cell lines. The effects of miR‑330 overexpression on the viability and invasion of RB cells were determined using MTT and Matrigel®‑based invasion assays, respectively. The mechanisms underlying the activity of miR‑330 in RB cells were investigated via bioinformatics analysis, luciferase reporter assays, and RT‑qPCR and western blot analyses. It was revealed that the levels of miR‑330 expression were significantly downregulated in RB tissues and cell lines compared with in control healthy tissues and cells, respectively. Overexpression of miR‑330 in RB cells significantly reduced the viability and invasion of cells in vitro. Additionally, ρ‑associated coiled‑coil containing protein kinase 1 (ROCK1) was identified as a putative target of miR‑330 using bioinformatics analysis. Subsequent experiments revealed that miR‑330 interacted with the 3'‑untranslated region of ROCK1 and downregulated its expression in RB cells. Furthermore, the expression levels of ROCK1 were increased in RB tissues compared with healthy controls and negatively correlated with miR‑330 expression. Finally, upregulation of ROCK1 expression reversed the miR‑330‑induced inhibition of the viability and invasion of RB cells. Collectively, these results suggested that miR‑330 exhibits tumor‑suppressor activity in the development of RB by directly targeting ROCK1, indicating that restoration of miR‑330 expression may be a promising therapeutic technique in the treatment of patients with RB.
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Affiliation(s)
- Ling Wang
- Department of Ophthalmology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Lina Wang
- Department of Ophthalmology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Lin Li
- Department of Ophthalmology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Hong Zhang
- Department of Ophthalmology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Xueman Lyu
- Department of Ophthalmology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
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Cheng Y, Liu W. MicroRNA-503 serves an oncogenic role in retinoblastoma progression by directly targeting PTPN12. Exp Ther Med 2019; 18:2285-2292. [PMID: 31410179 DOI: 10.3892/etm.2019.7795] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 04/05/2019] [Indexed: 12/16/2022] Open
Abstract
Numerous studies have demonstrated that microRNAs (miRNAs or miRs) are abnormally expressed in retinoblastoma (RB). miRNAs may serve a role in oncogene or tumor-suppressor activity in RB genesis and development by modulating various biological processes. miRNAs therefore, may be effective therapeutic targets for miRNA-based therapy in patients with RB. Recently it has been revealed that miR-503 may serve a role in various types of human cancer. However, the expression and functional roles of miR-503 are rarely reported in RB. In the current study, the expression of miR-503 was significantly upregulated in RB tissues and cell lines. In addition, Cell Counting Kit-8 and in vitro invasion assays were performed to assess cell proliferation and invasion, respectively. The results of the present study revealed that miR-503 inhibition impeded RB in vitro cell proliferation and invasion. Furthermore, protein tyrosine phosphatase nonreceptor type 12 (PTPN12) was demonstrated to be a direct target gene of miR-503 in RB cells. PTPN12 overexpression also led to the downregulation of miR-503 in RB cell proliferation and invasion. PTPN12 knockdown could therefore abrogate the effects of miR-503 downregulation in RB cells. In conclusion, the results demonstrated that miR-503 may serve a role in RB oncogenic activity progression by directly targeting PTPN12. Therefore, miR-503 may be a target for effective therapy in patients with RB.
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Affiliation(s)
- Yang Cheng
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Wei Liu
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Wang S, Du S, Lv Y, Zhang F, Wang W. MicroRNA-665 inhibits the oncogenicity of retinoblastoma by directly targeting high-mobility group box 1 and inactivating the Wnt/β-catenin pathway. Cancer Manag Res 2019; 11:3111-3123. [PMID: 31114354 PMCID: PMC6489654 DOI: 10.2147/cmar.s200566] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 02/25/2019] [Indexed: 12/11/2022] Open
Abstract
Purpose: Previous studies have revealed that microRNA-665 (miR-665) is dysregulated in a variety of human cancers. However, little is known regarding its expression profiles and functions in retinoblastoma (RB). Therefore, the aims of our study were to evaluate miR-665 expression in RB and determine the precise roles of miR-665 in the progression of RB. Patients and methods: Herein, RT-qPCR was used to determine miR-665 expression levels in RB tissues and cell lines, and a series of functional experiments were performed to explore the influence of miR-665 on RB cell proliferation, colony formation, apoptosis, migration, and invasion as well as tumor growth. The molecular mechanisms underlying the tumor-suppressive action of miR-665 in RB were also explored. Results: We found that miR-665 was markedly reduced in RB tissues and cell lines and that lower miR-665 expression was strongly associated with tumor size, TNM stage, and differentiation in patients with RB. Exogenous expression of miR-665 suppressed cell proliferation, colony formation, migration, and invasion, and induced cell apoptosis in RB cells, while silencing miR-665 expression had the opposite effects. In addition, upregulation of miR-665 decreased the tumor growth of RB cells in vivo. High-mobility group box 1 (HMGB1) was identified as a direct target of miR-665 in RB cells, and decreasing the expression of HMGB1 simulated the regulatory effects of miR-665 overexpression in RB cells, while knockdown of HMGB1 expression counteracted the miR-665-mediated antitumor effects in RB cells. Moreover, miR-665 was shown to regulate the Wnt/β-catenin signaling pathway by targeting HMGB1 in vitro and in vivo. Conclusion: Taken together, our in vitro and in vivo results suggest that miR-665 acts as a tumor-suppressive miRNA in RB by directly targeting HMGB1 and inactivating the Wnt/β-catenin pathway. Hence, this miRNA is a candidate prognostic biomarker and therapeutic target in patients with RB.
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Affiliation(s)
- Shuai Wang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Shanshan Du
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Yong Lv
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Fengyan Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Wenzhan Wang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
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Wang L, Lyu X, Ma Y, Wu F, Wang L. MicroRNA‑504 targets AEG‑1 and inhibits cell proliferation and invasion in retinoblastoma. Mol Med Rep 2019; 19:2935-2942. [PMID: 30720088 DOI: 10.3892/mmr.2019.9923] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 12/14/2018] [Indexed: 11/06/2022] Open
Abstract
The dysregulation of microRNAs (miRNAs/miRs) has become increasingly recognized as a primary feature of retinoblastoma (RB). Furthermore, miRNAs have been demonstrated to be involved in the occurrence and development of RB. Therefore, it is crucial to investigate the expression profile and roles of miRNAs in RB in order to identify potential therapeutic targets to treat patients with RB. The expression profile and biological roles of miRNA‑504 (miR‑504) have been reported in numerous types of human cancer; however, the roles of miR‑504 in RB remain unknown. In the present study, it was demonstrated that miR‑504 expression was significantly decreased in RB tissues and cell lines. Functional analysis identified that resumption of miR‑504 expression suppressed cell proliferation and invasion in RB. Furthermore, astrocyte elevated gene‑1 (AEG‑1) was determined to be a direct target of miR‑504 in RB, and a negative correlation between miR‑504 and AEG‑1 mRNA expression levels was observed in RB tissues. Additionally, the tumor‑suppressing effects of miR‑504 overexpression in RB cells could be rescued by AEG‑1 upregulation. In conclusion, these results indicated a significant role of the miR‑504/AEG‑1 pathway in inhibiting the aggressiveness of RB, suggesting that this miRNA may be employed as a therapeutic target for the treatment of patients with this disease.
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Affiliation(s)
- Lina Wang
- Department of Ophthalmology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Xueman Lyu
- Department of Ophthalmology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Yunqing Ma
- Department of Intensive Care Unit, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Fei Wu
- Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Ling Wang
- Department of Ophthalmology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
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Zhang X, Xu X, Ge G, Zang X, Shao M, Zou S, Zhang Y, Mao Z, Zhang J, Mao F, Qian H, Xu W. miR‑498 inhibits the growth and metastasis of liver cancer by targeting ZEB2. Oncol Rep 2018; 41:1638-1648. [PMID: 30592286 PMCID: PMC6365765 DOI: 10.3892/or.2018.6948] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 12/05/2018] [Indexed: 01/27/2023] Open
Abstract
MicroRNAs (miRNAs) play critical roles in the growth, metastasis and therapeutic resistance of liver cancer. Accumulating evidence suggests that miR-498 is aberrantly expressed in several human malignancies. However, the role and underlying mechanism of miR-498 in liver cancer remain unclear. In the present study, we investigated the potential roles and clinical value of miR-498 in liver cancer. We found that the miR-498 expression level was significantly lower in liver cancer patient tissues than that in healthy control tissues. The expression of miR-498 was also decreased in liver cancer cell lines compared to that noted in a normal human normal liver cell line. miR-498 overexpression markedly inhibited liver cancer cell proliferation, migration and invasion. miR-498 overexpression induced cell cycle arrest and apoptosis while it suppressed epithelial-mesenchymal transition (EMT) in liver cancer cells. Bioinformatic analysis and luciferase reporter assay further identified zinc finger E-box binding homeobox 2 (ZEB2) as a novel target of miR-498. Furthermore, ZEB2 knockdown recapitulated the inhibitory effects of miR-498 overexpression in liver cancer cells. ZEB2 overexpression rescued the inhibition of liver cancer cell proliferation, migration, and invasion by miR-498, indicating that ZEB2 acts as a downstream effector of miR-498 in liver cancer cells. Thus, we demonstrated that miR-498 suppresses the growth and metastasis of liver cancer cells, partly at least, by directly targeting ZEB2, suggesting that miR-498 may serve as a potential biomarker for the diagnosis and therapy of liver cancer.
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Affiliation(s)
- Xu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Xueying Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Guohong Ge
- Liver Disease and Cancer Institute, The Affiliated Zhenjiang Third Hospital of Jiangsu University, Zhenjiang, Jiangsu 212021, P.R. China
| | - Xueyan Zang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Meng Shao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Shengqiang Zou
- Liver Disease and Cancer Institute, The Affiliated Zhenjiang Third Hospital of Jiangsu University, Zhenjiang, Jiangsu 212021, P.R. China
| | - Yu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Zheying Mao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Jiayin Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Fei Mao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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Sun Z, Zhang A, Zhang L. Inhibition of microRNA‑492 attenuates cell proliferation and invasion in retinoblastoma via directly targeting LATS2. Mol Med Rep 2018; 19:1965-1971. [PMID: 30592270 DOI: 10.3892/mmr.2018.9784] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 11/22/2018] [Indexed: 11/06/2022] Open
Abstract
Numerous studies have demonstrated that microRNAs (miRNAs) are upregulated or downregulated in retinoblastoma (RB), and that this phenomenon is associated with the modulation of various malignant behaviours during RB occurrence and development. Therefore, the mechanisms that associate deregulated miRNAs with RB initiation and progression must be understood to identify effective therapeutic techniques for patients with RB. In the present study, miR‑492 expression was upregulated in RB tissues and cell lines. The effects of miR‑492 inhibition on the proliferation and invasion of RB cells were examined using Cell Counting kit‑8 and invasion assays. The results revealed that miR‑492 downregulation significantly decreased the proliferation and invasion of RB cells. Bioinformatics analysis predicted that large tumour‑suppressor kinase 2 (LATS2) was a putative target of miR‑492. Luciferase reporter assay, reverse transcription‑quantitative polymerase chain reaction and western blot analysis demonstrated that LATS2 was a direct target gene of miR‑492 in RB cells. In addition, LATS2 expression was downregulated in RB tissues, and its downregulation was inversely correlated with miR‑492 level. Furthermore, LATS2‑knockdown abrogated the effects of miR‑492 downregulation in RB cells. In conclusion, miR‑492 inhibition may impede the malignant behaviour of RB by directly targeting LATS2. Therefore, targeting this miRNA may be an effective therapeutic method for treating patients with RB.
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Affiliation(s)
- Zhiqun Sun
- Department of Pediatrics, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Aimei Zhang
- Department of Pediatrics, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Liming Zhang
- Department of Pediatrics, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
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23
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Delsin LEA, Salomao KB, Pezuk JA, Brassesco MS. Expression profiles and prognostic value of miRNAs in retinoblastoma. J Cancer Res Clin Oncol 2018; 145:1-10. [PMID: 30350021 DOI: 10.1007/s00432-018-2773-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/16/2018] [Indexed: 01/01/2023]
Abstract
Current cure rates for retinoblastoma (RB) are very high in developed countries. Nonetheless, in less privileged places worldwide, delayed diagnosis and refusal to adhere to treatment still endure an obstacle to improve overall patient survival. Thus, the access to consistent biomarkers for diagnosis at an earlier stage may facilitate treatment and improve outcomes. Over recent years, much attention has been focused on miRNAs, key post-transcriptional regulators that when altered, largely contribute to carcinogenesis and tumor progression. Many of the ~ 2500 microRNAs described in humans have shown differential expression profiles in tumors. In this review, we summarize current data about the roles of miRNAs in RB along with their value as diagnostic/prognostic factors using electronic databases such as PubMed. We reviewed the importance of miRNA in RB biology and discussed their implications in clinic intervention. Several miRNAs have pointed out reliable diagnostic and prognostic molecular biomarkers. The emergence of targeted therapies has significantly improved cancer treatment. In the near future, the modulation of miRNAs will represent a good treatment strategy.
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Affiliation(s)
| | | | - Julia Alejandra Pezuk
- Anhanguera University of Sao Paulo, UNIAN, Av. Raimundo Pereira de Magalhaes 3305, Sao Paulo, SP, CEP 05145-200, Brazil.
| | - Maria Sol Brassesco
- Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, University of Sao Paulo, Sao Paulo, Brazil
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24
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Daskalaki I, Gkikas I, Tavernarakis N. Hypoxia and Selective Autophagy in Cancer Development and Therapy. Front Cell Dev Biol 2018; 6:104. [PMID: 30250843 PMCID: PMC6139351 DOI: 10.3389/fcell.2018.00104] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/13/2018] [Indexed: 01/07/2023] Open
Abstract
Low oxygen availability, a condition known as hypoxia, is a common feature of various pathologies including stroke, ischemic heart disease, and cancer. Hypoxia adaptation requires coordination of intricate pathways and mechanisms such as hypoxia-inducible factors (HIFs), the unfolded protein response (UPR), mTOR, and autophagy. Recently, great effort has been invested toward elucidating the interplay between hypoxia-induced autophagy and cancer cell metabolism. Although novel types of selective autophagy have been identified, including mitophagy, pexophagy, lipophagy, ERphagy and nucleophagy among others, their potential interface with hypoxia response mechanisms remains poorly understood. Autophagy activation facilitates the removal of damaged cellular compartments and recycles components, thus promoting cell survival. Importantly, tumor cells rely on autophagy to support self-proliferation and metastasis; characteristics related to poor disease prognosis. Therefore, a deeper understanding of the molecular crosstalk between hypoxia response mechanisms and autophagy could provide important insights with relevance to cancer and hypoxia-related pathologies. Here, we survey recent findings implicating selective autophagy in hypoxic responses, and discuss emerging links between these pathways and cancer pathophysiology.
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Affiliation(s)
- Ioanna Daskalaki
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Biology, University of Crete, Heraklion, Greece
| | - Ilias Gkikas
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Biology, University of Crete, Heraklion, Greece
| | - Nektarios Tavernarakis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Basic Sciences, Medical School, University of Crete, Heraklion, Greece
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25
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MiR-22-3p targeting alpha-enolase 1 regulates the proliferation of retinoblastoma cells. Biomed Pharmacother 2018; 105:805-812. [DOI: 10.1016/j.biopha.2018.06.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/11/2018] [Accepted: 06/11/2018] [Indexed: 11/23/2022] Open
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26
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Zhang Y, Wang X, Zhao Y. MicroRNA‑874 prohibits the proliferation and invasion of retinoblastoma cells by directly targeting metadherin. Mol Med Rep 2018; 18:3099-3105. [PMID: 30015932 DOI: 10.3892/mmr.2018.9295] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 06/21/2018] [Indexed: 11/06/2022] Open
Abstract
MicroRNAs (miRNAs/miRs) serve important roles in regulating gene expression by directly binding to the 3'‑untranslated regions of target genes. Multiple miRNAs are dysregulated in retinoblastoma (RB) and their dysregulation is closely related to RB malignancy. Therefore, exploring the detailed roles of miRNAs in RB is valuable to facilitate the development of effective therapeutic targets for patients with this disease. miRNA‑874‑3p (miR‑874) has been recently reported to be downregulated in several types of human cancer and serves an essential role in cancer progression. However, the expression pattern and detailed roles of miR‑874 in RB, as well as the underlying molecular mechanisms in RB, have not been clearly elucidated. Therefore, this study detected miR‑874 expression in RB tissues and cell lines. The biological roles of miR‑874 in RB were determined and the underlying mechanisms of its actions in RB cells were also examined. This study revealed that miR‑874 expression was aberrantly underexpressed in RB tissues and cell lines. However, returning miR‑874 expression restricted the proliferative and invasive abilities of RB cells. In terms of the underlying mechanism, metadherin (MTDH) was validated as a direct target gene of miR‑874 in RB cells. MTDH inhibition could imitate the inhibitory roles of miR‑874 overexpression in RB cells. Furthermore, forced MTDH expression partially reversed the suppressive effects of miR‑874 on RB cells. In conclusion, this study revealed that miR‑874 may inhibit RB progression by directly targeting MTDH. Restoration of miR‑874 expression may be a novel strategy for preventing the rapid growth and metastasis of RB cells.
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Affiliation(s)
- Yongfeng Zhang
- Department of Pediatrics, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China
| | - Xueqin Wang
- Medical Imaging Center, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China
| | - Yuehua Zhao
- Department of Pediatrics, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China
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27
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Su Y, Lu S, Li J, Deng L. Shikonin-mediated up-regulation of miR-34a and miR-202 inhibits retinoblastoma proliferation. Toxicol Res (Camb) 2018; 7:907-912. [PMID: 30310667 DOI: 10.1039/c8tx00079d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 05/16/2018] [Indexed: 12/15/2022] Open
Abstract
Retinoblastoma (RB) is an ocular tumor that occurs mainly in children. The pathogenesis of RB is not well understood, and its treatment strategies are very limited. Shikonin is widely reported as an anti-tumor agent. However, its effect on RB is still unknown. MTT assay was performed to detect the proliferation ability of two RB cell lines, Y-79 and WERI-Rb-1, upon treatment with Shikonin. Colony formation assay was conducted to examine the clonogenic ability of Shikonin-treated cells. Real-time PCR and western blotting were performed for expression analysis of miRNAs and MYCN, respectively. Luciferase activity assay was conducted to test the inhibition mechanism of miR-34a and miR-202 on MYCN. Shikonin could effectively inhibit the proliferation of RB cells and upregulate the expressions of miR-34a and miR-202. MiR-34a and miR-202 could directly target the mRNA degradation of oncogene MYCN, and the inhibitory effect of Shikonin was largely weakened by restoring the MYCN protein expression. Shikonin-mediated up-regulation of miR-34a and miR-202 inhibits RB proliferation, partially mediated through MYCN.
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Affiliation(s)
- Yan Su
- Department of TCM Ophthalmology , Jinan Second People's Hospital , No. 148 Jingyi Road , Jinan 250001 , Shandong , China .
| | - Shiyou Lu
- Department of Acupuncture , Affiliated hospital of Shandong University of TCM , No. 42 Wenhua West Road , Jinan 250011 , Shandong , China
| | - Jincun Li
- Department of TCM , Shandong Provincial Western Hospital , No. 4 Duanxing West Road , Jinan 250022 , Shandong , China
| | - Liya Deng
- Department of TCM Ophthalmology , Jinan Second People's Hospital , No. 148 Jingyi Road , Jinan 250001 , Shandong , China .
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