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Lozano-Velasco E, Garcia-Padilla C, Carmona-Garcia M, Gonzalez-Diaz A, Arequipa-Rendon A, Aranega AE, Franco D. MEF2C Directly Interacts with Pre-miRNAs and Distinct RNPs to Post-Transcriptionally Regulate miR-23a-miR-27a-miR-24-2 microRNA Cluster Member Expression. Noncoding RNA 2024; 10:32. [PMID: 38804364 PMCID: PMC11130849 DOI: 10.3390/ncrna10030032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 05/11/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024] Open
Abstract
Transcriptional regulation constitutes a key step in gene expression regulation. Myocyte enhancer factor 2C (MEF2C) is a transcription factor of the MADS box family involved in the early development of several cell types, including muscle cells. Over the last decade, a novel layer of complexity modulating gene regulation has emerged as non-coding RNAs have been identified, impacting both transcriptional and post-transcriptional regulation. microRNAs represent the most studied and abundantly expressed subtype of small non-coding RNAs, and their functional roles have been widely documented. On the other hand, our knowledge of the transcriptional and post-transcriptional regulatory mechanisms that drive microRNA expression is still incipient. We recently demonstrated that MEF2C is able to transactivate the long, but not short, regulatory element upstream of the miR-23a-miR-27a-miR-24-2 transcriptional start site. However, MEF2C over-expression and silencing, respectively, displayed distinct effects on each of the miR-23a-miR-27a-miR-24-2 mature cluster members without affecting pri-miRNA expression levels, thus supporting additional MEF2C-driven regulatory mechanisms. Within this study, we demonstrated a complex post-transcriptional regulatory mechanism directed by MEF2C in the regulation of miR-23a-miR-27a-miR-24-2 cluster members, distinctly involving different domains of the MEF2C transcription factor and the physical interaction with pre-miRNAs and Ksrp, HnRNPa3 and Ddx17 transcripts.
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Affiliation(s)
- Estefanía Lozano-Velasco
- Cardiovascular Development Group, Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (C.G.-P.); (M.C.-G.); (A.G.-D.); (A.A.-R.); (A.E.A.)
- Fundación Medina, 18016 Granada, Spain
| | - Carlos Garcia-Padilla
- Cardiovascular Development Group, Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (C.G.-P.); (M.C.-G.); (A.G.-D.); (A.A.-R.); (A.E.A.)
- Department of Anatomy, Embryology and Zoology, School of Medicine, University of Extremadura, 06006 Badajoz, Spain
| | - Miguel Carmona-Garcia
- Cardiovascular Development Group, Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (C.G.-P.); (M.C.-G.); (A.G.-D.); (A.A.-R.); (A.E.A.)
| | - Alba Gonzalez-Diaz
- Cardiovascular Development Group, Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (C.G.-P.); (M.C.-G.); (A.G.-D.); (A.A.-R.); (A.E.A.)
| | - Angela Arequipa-Rendon
- Cardiovascular Development Group, Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (C.G.-P.); (M.C.-G.); (A.G.-D.); (A.A.-R.); (A.E.A.)
| | - Amelia E. Aranega
- Cardiovascular Development Group, Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (C.G.-P.); (M.C.-G.); (A.G.-D.); (A.A.-R.); (A.E.A.)
- Fundación Medina, 18016 Granada, Spain
| | - Diego Franco
- Cardiovascular Development Group, Department of Experimental Biology, University of Jaen, 23071 Jaen, Spain; (E.L.-V.); (C.G.-P.); (M.C.-G.); (A.G.-D.); (A.A.-R.); (A.E.A.)
- Fundación Medina, 18016 Granada, Spain
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Han L, Hao P, Wang W, Wu Y, Ruan S, Gao C, Tian W, Tian Y, Li X, Wang L, Zhang W, Wang H, Chang Y, Ding J. Molecular mechanisms that regulate the heat stress response in sea urchins (Strongylocentrotus intermedius) by comparative heat tolerance performance and whole-transcriptome RNA sequencing. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165846. [PMID: 37541492 DOI: 10.1016/j.scitotenv.2023.165846] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/07/2023] [Accepted: 07/26/2023] [Indexed: 08/06/2023]
Abstract
In the context of climate change and extreme high temperature, the commercially important sea urchin Strongylocentrotus intermedius suffers high mortality during summer in Northern China. How sea urchins respond to high temperatures is of great concern to academia and industry. How to understand the heat tolerance of sea urchin from the whole transcriptome level. In this study, the heat-resistant S. intermedius bred by our team and its control group were used as the research objects, then we applied whole-transcriptome RNA sequencing to detect differentially expressed mRNAs, microRNAs, long noncoding RNAs that respond to heat stress in the heat-resistant and control S. intermedius. A competitive endogenous RNA (ceRNA) regulatory network was constructed with predicted pairs of differentially expressed mRNAs and noncoding RNAs and revealed the molecular regulatory mechanisms in S. intermedius responding to heat stress. A functional analysis suggested that the ceRNAs were involved in basal metabolism, calcium ion transport, endoplasmic reticulum stress, and apoptosis. This is the whole-transcriptomic analysis of S. intermedius under heat stress to propose ceRNA networks that will provide a basis for studying the potential functions of long noncoding RNAs and miRNAs in the heat stress response in S. intermedius and provide a theoretical basis for the study of the molecular mechanism of sea urchins in response to environmental changes.
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Affiliation(s)
- Lingshu Han
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China; School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Pengfei Hao
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Wenpei Wang
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Yanglei Wu
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Shuchao Ruan
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Chuang Gao
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Wanrong Tian
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Ye Tian
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Xiaonan Li
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Luo Wang
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Weijie Zhang
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Heng Wang
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Yaqing Chang
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China
| | - Jun Ding
- Key Laboratory of Northern Aquatic Germplasm Resources and Genetic Breeding in Liaoning Province, Dalian 116023, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, China.
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Circulating miR-122-5p, miR-92a-3p, and miR-18a-5p as Potential Biomarkers in Human Liver Transplantation Follow-Up. Int J Mol Sci 2023; 24:ijms24043457. [PMID: 36834868 PMCID: PMC9962619 DOI: 10.3390/ijms24043457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/11/2023] Open
Abstract
The requirement of blood-circulating sensitive biomarkers for monitoring liver transplant (LT) is currently a necessary step aiming at the reduction of standard invasive protocols, such as liver biopsy. In this respect, the main objective of this study is to assess circulating microRNA (c-miR) changes in recipients' blood before and after LT and to correlate their blood levels with gold standard biomarkers and with outcomes such as rejection or complications after graft. An miR profile was initially performed; then, the most deregulated miRs were validated by RT-qPCR in 14 recipients pre- and post-LT and compared to a control group of 24 nontransplanted healthy subjects. MiR-122-5p, miR-92a-3p, miR-18a-5p, and miR-30c-5p, identified in the validation phase, were also analyzed considering an additional 19 serum samples collected from LT recipients and focusing on different follow-up (FU) times. The results showed significant, FU-related changes in c-miRs. In particular, miR-122-5p, miR-92a-3p, and miR-18a-5p revealed the same trend after transplantation and an increase in their level was found in patients with complications, independently from FU times. Conversely, the variations in the standard haemato-biochemical parameters for liver function assessment were not significant in the same FU period, confirming the importance of c-miRs as potential noninvasive biomarkers for monitoring patients' outcomes.
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Suppression of RBFox2 by Multiple MiRNAs in Pressure Overload-Induced Heart Failure. Int J Mol Sci 2023; 24:ijms24021283. [PMID: 36674797 PMCID: PMC9867119 DOI: 10.3390/ijms24021283] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/25/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
Heart failure is the final stage of various cardiovascular diseases and seriously threatens human health. Increasing mediators have been found to be involved in the pathogenesis of heart failure, including the RNA binding protein RBFox2. It participates in multiple aspects of the regulation of cardiac function and plays a critical role in the process of heart failure. However, how RBFox2 itself is regulated remains unclear. Here, we dissected transcriptomic signatures, including mRNAs and miRNAs, in a mouse model of heart failure after TAC surgery. A global analysis showed that an asymmetric alternation in gene expression and a large-scale upregulation of miRNAs occurred in heart failure. An association analysis revealed that the latter not only contributed to the degradation of numerous mRNA transcripts, but also suppressed the translation of key proteins such as RBFox2. With the aid of Ago2 CLIP-seq data, luciferase assays verified that RBFox2 was targeted by multiple miRNAs, including Let-7, miR-16, and miR-200b, which were significantly upregulated in heart failure. The overexpression of these miRNAs suppressed the RBFox2 protein and its downstream effects in cardiomyocytes, which was evidenced by the suppressed alternative splicing of the Enah gene and impaired E-C coupling via the repression of the Jph2 protein. The inhibition of Let-7, the most abundant miRNA family targeting RBFox2, could restore the RBFox2 protein as well as its downstream effects in dysfunctional cardiomyocytes induced by ISO treatment. In all, these findings revealed the molecular mechanism leading to RBFox2 depression in heart failure, and provided an approach to rescue RBFox2 through miRNA inhibition for the treatment of heart failure.
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Chen H, Li S, Wang J, Ma Y, Yin H. Screening of key biomarkers in osteoporosis: Evidence from bioinformatic analysis. Int J Rheum Dis 2023; 26:69-79. [PMID: 36219533 DOI: 10.1111/1756-185x.14450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/02/2022] [Accepted: 09/20/2022] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To analyze the expression characteristics of osteoporosis-related genes by bioinformatics and elucidate the pathogenesis of osteoporosis. METHODS The differentially expressed genes (DEGs), microRNA (miRNA), and genes with differentially methylated regions (DMRS) in promoters were identified. The protein-protein interaction (PPI) network was constructed and performed. The Clue Gene Ontology analysis and miRNA-mRNA (messenger RNA) regulatory network were constructed using Cytoscape. RESULTS Fifty-nine DEGs, 10 differential miRNAs, and 2083 genes with DMRs were screened out. The Proteasome-Modulator (PSMD) family proteins and estrogen receptor 1 (ESR1) are vital for the PPI analysis of DEGs. The interaction network of the Smad3 protein showed that the degree of connection to ESR1, PSMD11, and transcription factor 4 (TCF4) is very high. Homo sapiens (hsa)-miR-106b-5p was differential and regulated TCF4 through building the miRNA-mRNA regulatory network. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment of DEGs focused on vascular smooth muscle contraction, thyroid hormone signaling pathway, and estrogen signaling pathway. The Gene Ontology (GO) function analysis of genes with DMRs in promoters was primarily concentrated in the cell differentiation, positive regulation of CDP-diacylglycerol-serine O-phosphatidyltransferase activity, and positive regulation of C-palmitoyltransferase activity. The KEGG enrichment of genes with DMRs in promoters largely focused on glycerol phospholipid metabolism, histidine metabolism, Adenosine 5'-monophosphate-activated protein kinase signaling pathway, Hedgehog signaling pathway, and mRNA surveillance pathway. CONCLUSION Hsa-miRNA-106b-5p regulates bone formation and the pathogenesis of osteoporosis by controlling TCF4, and methylation modification of TCF4 can also affect the pathogenesis of osteoporosis.
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Affiliation(s)
- Hao Chen
- Traditional Chinese Medicine Orthopedics, Nanjing University of Chinese Medicine, Nanjing, China.,Department of Orthopedics and Traumatology, Yancheng Dafeng Hospital of Traditional Chinese Medicine, Yancheng, China
| | - Shaoshuo Li
- Traditional Chinese Medicine Orthopedics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jianwei Wang
- Department of Orthopedics, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
| | - Yong Ma
- Traditional Chinese Medicine Orthopedics, Nanjing University of Chinese Medicine, Nanjing, China
| | - Heng Yin
- Department of Orthopedics, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
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Gárate-Rascón M, Recalde M, Rojo C, Fernández-Barrena MG, Ávila MA, Arechederra M, Berasain C. SLU7: A New Hub of Gene Expression Regulation—From Epigenetics to Protein Stability in Health and Disease. Int J Mol Sci 2022; 23:ijms232113411. [PMID: 36362191 PMCID: PMC9658179 DOI: 10.3390/ijms232113411] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
SLU7 (Splicing factor synergistic lethal with U5 snRNA 7) was first identified as a splicing factor necessary for the correct selection of 3′ splice sites, strongly impacting on the diversity of gene transcripts in a cell. More recent studies have uncovered new and non-redundant roles of SLU7 as an integrative hub of different levels of gene expression regulation, including epigenetic DNA remodeling, modulation of transcription and protein stability. Here we review those findings, the multiple factors and mechanisms implicated as well as the cellular functions affected. For instance, SLU7 is essential to secure liver differentiation, genome integrity acting at different levels and a correct cell cycle progression. Accordingly, the aberrant expression of SLU7 could be associated with human diseases including cancer, although strikingly, it is an essential survival factor for cancer cells. Finally, we discuss the implications of SLU7 in pathophysiology, with particular emphasis on the progression of liver disease and its possible role as a therapeutic target in human cancer.
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Affiliation(s)
- María Gárate-Rascón
- Program of Hepatology, Center for Applied Medical Research (CIMA), University of Navarra, Avda. Pio XII, n55, 31008 Pamplona, Spain
| | - Miriam Recalde
- Program of Hepatology, Center for Applied Medical Research (CIMA), University of Navarra, Avda. Pio XII, n55, 31008 Pamplona, Spain
| | - Carla Rojo
- Program of Hepatology, Center for Applied Medical Research (CIMA), University of Navarra, Avda. Pio XII, n55, 31008 Pamplona, Spain
| | - Maite G. Fernández-Barrena
- Program of Hepatology, Center for Applied Medical Research (CIMA), University of Navarra, Avda. Pio XII, n55, 31008 Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, Carlos III Health Institute), 28029 Madrid, Spain
| | - Matías A. Ávila
- Program of Hepatology, Center for Applied Medical Research (CIMA), University of Navarra, Avda. Pio XII, n55, 31008 Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, Carlos III Health Institute), 28029 Madrid, Spain
| | - María Arechederra
- Program of Hepatology, Center for Applied Medical Research (CIMA), University of Navarra, Avda. Pio XII, n55, 31008 Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, Carlos III Health Institute), 28029 Madrid, Spain
| | - Carmen Berasain
- Program of Hepatology, Center for Applied Medical Research (CIMA), University of Navarra, Avda. Pio XII, n55, 31008 Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, 31008 Pamplona, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, Carlos III Health Institute), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-948-194700; Fax: +34-948-194717
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Ortuño-Sahagún D, Enterría-Rosales J, Izquierdo V, Griñán-Ferré C, Pallàs M, González-Castillo C. The Role of the miR-17-92 Cluster in Autophagy and Atherosclerosis Supports Its Link to Lysosomal Storage Diseases. Cells 2022; 11:cells11192991. [PMID: 36230953 PMCID: PMC9564236 DOI: 10.3390/cells11192991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/08/2022] [Accepted: 09/20/2022] [Indexed: 12/24/2022] Open
Abstract
Establishing the role of non-coding RNA (ncRNA), especially microRNAs (miRNAs), in the regulation of cell function constitutes a current research challenge. Two to six miRNAs can act in clusters; particularly, the miR-17-92 family, composed of miR-17, miR-18a, miR-19a, miR-20a, miR-19b-1, and miR-92a is well-characterized. This cluster functions during embryonic development in cell differentiation, growth, development, and morphogenesis and is an established oncogenic cluster. However, its role in the regulation of cellular metabolism, mainly in lipid metabolism and autophagy, has received less attention. Here, we argue that the miR-17-92 cluster is highly relevant for these two processes, and thus, could be involved in the study of pathologies derived from lysosomal deficiencies. Lysosomes are related to both processes, as they control cholesterol flux and regulate autophagy. Accordingly, we compiled, analyzed, and discussed current evidence that highlights the cluster's fundamental role in regulating cellular energetic metabolism (mainly lipid and cholesterol flux) and atherosclerosis, as well as its critical participation in autophagy regulation. Because these processes are closely related to lysosomes, we also provide experimental data from the literature to support our proposal that the miR-17-92 cluster could be involved in the pathogenesis and effects of lysosomal storage diseases (LSD).
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Affiliation(s)
- Daniel Ortuño-Sahagún
- Laboratorio de Neuroinmunobiología Molecular, Instituto de Investigación en Ciencias Biomédicas (IICB) CUCS, Universidad de Guadalajara, Guadalajara 44340, Jalisco, Mexico
- Correspondence: (D.O.-S.); (C.G.-C.)
| | - Julia Enterría-Rosales
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Campus Guadalajara, Zapopan 45201, Jalisco, Mexico
| | - Vanesa Izquierdo
- Pharmacology and Toxicology Section and Institute of Neuroscience, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08007 Barcelona, Spain
| | - Christian Griñán-Ferré
- Pharmacology and Toxicology Section and Institute of Neuroscience, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08007 Barcelona, Spain
| | - Mercè Pallàs
- Pharmacology and Toxicology Section and Institute of Neuroscience, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08007 Barcelona, Spain
| | - Celia González-Castillo
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Campus Guadalajara, Zapopan 45201, Jalisco, Mexico
- Correspondence: (D.O.-S.); (C.G.-C.)
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Gramantieri L, Fornari F, Giovannini C, Trerè D. MicroRNAs at the Crossroad between Immunoediting and Oncogenic Drivers in Hepatocellular Carcinoma. Biomolecules 2022; 12:biom12070930. [PMID: 35883486 PMCID: PMC9313100 DOI: 10.3390/biom12070930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/23/2022] [Accepted: 06/30/2022] [Indexed: 02/07/2023] Open
Abstract
Simple Summary In recent years, treatments enhancing the antitumor immune response have revealed a new promising approach for advanced hepatocellular carcinoma (HCC). Beside favorable results in about one third of patients, much still remains to be done to face primary nonresponse, early, and late disease reactivation. Understanding the mechanisms underneath immune system modulation by immune checkpoint inhibitors in HCC might give additional opportunities for patient selection and combined approaches. MicroRNAs have emerged as relevant modulators of cancer cell hallmarks, including aberrant proliferation, invasion and migration capabilities, epithelial-to-mesenchymal transition, and glycolytic metabolism. At the same time, they contribute to the immune system development, response, and programs activation, with particular regard towards regulatory functions. Thus, miRNAs are relevant not only in cancer cells’ biology, but also in the immune response and interplay between cancer, microenvironment, and immune system. Abstract Treatments aimed to reverse the tumor-induced immune tolerance represent a promising approach for advanced hepatocellular carcinoma (HCC). Notwithstanding, primary nonresponse, early, and late disease reactivation still represent major clinical challenges. Here, we focused on microRNAs (miRNAs) acting both as modulators of cancer cell hallmarks and immune system response. We outlined the bidirectional function that some oncogenic miRNAs play in the differentiation and program activation of the immune system development and, at the same time, in the progression of HCC. Indeed, the multifaceted spectrum of miRNA targets allows the modulation of both immune-associated factors and oncogenic or tumor suppressor drivers at the same time. Understanding the molecular changes contributing to disease onset, progression, and resistance to treatments might help to identify possible novel biomarkers for selecting patient subgroups, and to design combined tailored treatments to potentiate antitumor approaches. Preliminary findings seem to argue in favor of a bidirectional function of some miRNAs, which enact an effective modulation of molecular pathways driving oncogenic and immune-skipping phenotypes associated with cancer aggressiveness. The identification of these miRNAs and the characterization of their ‘dual’ role might help to unravel novel biomarkers identifying those patients more likely to respond to immune checkpoint inhibitors and to identify possible therapeutic targets with both antitumor and immunomodulatory functions. In the present review, we will focus on the restricted panel of miRNAs playing a bidirectional role in HCC, influencing oncogenic and immune-related pathways at once. Even though this field is still poorly investigated in HCC, it might represent a source of candidate molecules acting as both biomarkers and therapeutic targets in the setting of immune-based treatments.
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Affiliation(s)
- Laura Gramantieri
- Division of Internal Medicine, Hepatobiliary and Immunoallergic Diseases, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Francesca Fornari
- Department for Life Quality Studies (QuVi), University of Bologna, 47921 Rimini, Italy
- Centre for Applied Biomedical Research-CRBA, University of Bologna, IRCCS St. Orsola Hospital, 40138 Bologna, Italy
| | - Catia Giovannini
- Centre for Applied Biomedical Research-CRBA, University of Bologna, IRCCS St. Orsola Hospital, 40138 Bologna, Italy
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138 Bologna, Italy
| | - Davide Trerè
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138 Bologna, Italy
- Departmental Program in Laboratory Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
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Han L, Quan Z, Wu Y, Hao P, Wang W, Li Y, Zhang X, Liu P, Gao C, Wang H, Wang L, Zhang W, Yin D, Chang Y, Ding J. Expression Regulation Mechanisms of Sea Urchin (Strongylocentrotus intermedius) Under the High Temperature: New Evidence for the miRNA-mRNA Interaction Involvement. Front Genet 2022; 13:876308. [PMID: 35846155 PMCID: PMC9277089 DOI: 10.3389/fgene.2022.876308] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 06/13/2022] [Indexed: 11/18/2022] Open
Abstract
In the context of global warming and continuous high temperatures in the northern part of China during summer, the mortality rate of our main breeding species, Strongylocentrotus intermedius, reached 80% in 2020. How sea urchins respond to high temperatures is of great concern to academia and industry. In this study, we examined the antioxidant enzyme activities of different color tube-footed sea urchins under heat stress and compared their transcriptome and microRNA (miRNA) profiles using RNA-Seq. The results showed that the antioxidant enzyme activities of sea urchins were altered by thermal stress, and the changes in peroxidase activities of red tube-footed sea urchins were particularly significant. Investigations revealed that 1,079 differentially expressed genes (DEGs), 11 DE miRNAs, and 104 “DE miRNA-DEG” pairs in total were detected in sea urchins under high temperature stress. Several mRNA and miRNAs were significantly changed (e.g. HSP70, DnaJ11, HYAL, CALR, miR-184-p5, miR-92a, miR-92c, and miR-124-p5), suggesting these genes and miRNAs exerted important functions in response to high temperature. At the transcriptional level, red tube-footed sea urchins were found to be more sensitive to high temperature and could respond to high temperature rapidly. DE miRNA-mRNA network showed that miR-92b-3p and PC-5p-7420 were the most corresponding miRNAs. Five mRNAs (DnaJ11, SAR1B, CALR, HYOU1, TUBA) may be potential markers of sea urchin response to high temperature. Possible interaction between miRNA-mRNA could be linked to protein folding in the endoplasmic reticulum, Phagosomes, and calcium transport. This study provides a theoretical basis for the molecular mechanism of sea urchin heat tolerance and information that will aid in the selection and breeding of sea urchins with high temperature tolerance.
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Affiliation(s)
| | - Zijiao Quan
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yanglei Wu
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Pengfei Hao
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Wenpei Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yuanxin Li
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Xianglei Zhang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Peng Liu
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Chuang Gao
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Heng Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Luo Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Weijie Zhang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Donghong Yin
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Jun Ding
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
- *Correspondence: Jun Ding,
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10
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Enkhnaran B, Zhang GC, Zhang NP, Liu HN, Wu H, Xuan S, Yu XN, Song GQ, Shen XZ, Zhu JM, Liu XP, Liu TT. microRNA-106b-5p Promotes Cell Growth and Sensitizes Chemosensitivity to Sorafenib by Targeting the BTG3/Bcl-xL/p27 Signaling Pathway in Hepatocellular Carcinoma. JOURNAL OF ONCOLOGY 2022; 2022:1971559. [PMID: 35342408 PMCID: PMC8947873 DOI: 10.1155/2022/1971559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 12/11/2021] [Accepted: 02/04/2022] [Indexed: 12/30/2022]
Abstract
microRNAs (miRNAs) and miRNA-mediated regulatory networks are promising candidates in the prevention and treatment of cancer, but the role of specific miRNAs involved in hepatocellular carcinoma (HCC) remains to be elusive. Herein, we found that miR-106b-5p is upregulated in both HCC patients' tumor tissues and HCC cell lines. The miR-106b-5p expression level was positively correlated with α-fetoprotein (AFP), hepatitis B surface antigen (HBsAg), and tumor size. Overexpression of miR-106b-5p promoted cell proliferation, migration, cell cycle G1/S transition, and tumor growth, while decreased miR-106b-5p expression had opposite effects. Mechanistic studies showed that B-cell translocation gene 3 (BTG3), a known antiproliferative protein, was a direct target of miR-106b-5p, whose expression level is inversely correlated with miR-106b-5p expression. Moreover, miR-106b-5p positively regulates cell proliferation in a BTG3-dependent manner, resulting in upregulation of Bcl-xL, cyclin E1, and CDK2, as well as downregulation of p27. More importantly, we also demonstrated that miR-106b-5p enhances the resistance to sorafenib treatment in a BTG3-dependent manner. The in vivo findings showed that mice treated with a miR-106b-5p sponge presented a smaller tumor burden than controls, while the mice injected cells treated with miR-106b-5p had more considerable tumor burden than controls. Altogether, these data suggest that miR-106b-5p promotes cell proliferation and cell cycle and increases HCC cells' resistance to sorafenib through the BTG3/Bcl-xL/p27 signaling pathway.
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Affiliation(s)
- Bilegsaikhan Enkhnaran
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Guang-Cong Zhang
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Ning-Ping Zhang
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Hai-Ning Liu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Hao Wu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Shi Xuan
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xiang-Nan Yu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Guang-Qi Song
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xi-Zhong Shen
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Key Laboratory of Medical Molecular Virology, Shanghai Medical College of, Fudan University, Shanghai 200032, China
| | - Ji-Min Zhu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xiu-Ping Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Tao-Tao Liu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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11
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Hong BS. Regulation of the Effect of Physical Activity Through MicroRNAs in Breast Cancer. Int J Sports Med 2021; 43:455-465. [PMID: 34872116 DOI: 10.1055/a-1678-7147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Physical activity and exercise can induce beneficial molecular and biological regulations that have been associated with an incidence of various diseases, including breast cancer. Recent studies demonstrated that the potential links between physical activity-induced circulating microRNAs (miRNAs) and cancer risk and progression. Here, we investigated whether altered miRNAs by exercise could influence breast cancer progression. After primary searching in PubMed and reviewing the full-text papers, candidate miRNAs altered by exercise in breast cancer were identified. Analysis of expression profiles and clinical outcomes of altered miRNAs using The Cancer Genome Atlas datasets showed altered miRNAs expressions were significantly associated with the patient's prognosis, whereas prognostic values of each miRNA varied in different stages and subtypes. In addition, altered miRNAs profiles regulated various target genes and key signaling pathways in tumorigenesis, including pathways in cancer and the PI3K-Akt signaling pathway; however, miRNAs regulated the expression of target genes differently according to tumor stages and subtypes. These results indicate that circulating miRNAs are promising noninvasive stable biomarkers for early detection, diagnosis, prognosis, and monitoring the response to clinical therapies of breast cancer. Moreover, stages and subtype-stratified approaches for breast cancer progression would be needed to evaluate the prognostic value of miRNAs for biomarkers and therapeutic targets.
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Affiliation(s)
- Bok Sil Hong
- Cheju Halla University, Life Science Research Center, Department of Nursing, Jeju, Korea (the Republic of)
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12
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Xie H, Lv S, Wang Z, Yuan X. E2F transcription factor 1 elevates cyclin D1 expression by suppressing transcription of microRNA-107 to augment progression of glioma. Brain Behav 2021; 11:e2399. [PMID: 34758200 PMCID: PMC8671784 DOI: 10.1002/brb3.2399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Dysregulation of microRNAs has been frequently implicated in the progression of human diseases, including glioma. This study aims to explore the interaction between E2F transcription factor 1 (E2F1) and miR-107 in the progression of glioma. METHODS Expression of miR-107 in glioma tissues and cells was examined. Putative binding sites between E2F1 and the promoter region of miR-107, and between miR-107 and cyclin D1 (CCND1) mRNA were predicted via bioinformatic systems and validated via chromatin immunoprecipitation and luciferase reporter gene assays. Altered expression of miR-107, E2F1, and CCND1 was introduced in A172 and T98G cells to examine their roles in cell growth and the activity of the Wnt/β-catenin signaling. In vivo experiments were performed by injecting cells in nude mice. RESULTS miR-107 was poorly expressed, whereas E2F1 and CCND1 were highly expressed in glioma tissues and cells. E2F1 bound to the promoter region of miR-107 to induce transcriptional repression, and miR-107 directly bound to CCND1 mRNA to reduce its expression. Overexpression of miR-107 reduced proliferation, migration and invasion, and augmented apoptosis of glioma cells, and it reduced activity of the Wnt/β-catenin pathway. The anti-tumorigenic roles of miR-107 were blocked by E2F1 or CCND1 overexpression. Similar results were reproduced in vivo where miR-107 overexpression or E2F1 inhibition blocked tumor growth in nude mice. CONCLUSION This study suggested that E2F1 reduces miR-107 transcription to induce CCND1 upregulation, which leads to progression of glioma via Wnt/β-catenin signaling activation.
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Affiliation(s)
- Huan Xie
- Department of Clinical Medicine, Jiangxi Health Vocational College, Nanchang, P. R. China
| | - Shigang Lv
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Zhaozhen Wang
- Department of Clinical Medicine, Jiangxi Health Vocational College, Nanchang, P. R. China
| | - Xinzhang Yuan
- Department of Clinical Medicine, Jiangxi Health Vocational College, Nanchang, P. R. China
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13
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Sałówka A, Martinez-Sanchez A. Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells. Front Endocrinol (Lausanne) 2021; 12:704824. [PMID: 34803905 PMCID: PMC8600252 DOI: 10.3389/fendo.2021.704824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 08/02/2021] [Indexed: 12/12/2022] Open
Abstract
Pancreatic β-cells within the islets of Langerhans respond to rising blood glucose levels by secreting insulin that stimulates glucose uptake by peripheral tissues to maintain whole body energy homeostasis. To different extents, failure of β-cell function and/or β-cell loss contribute to the development of Type 1 and Type 2 diabetes. Chronically elevated glycaemia and high circulating free fatty acids, as often seen in obese diabetics, accelerate β-cell failure and the development of the disease. MiRNAs are essential for endocrine development and for mature pancreatic β-cell function and are dysregulated in diabetes. In this review, we summarize the different molecular mechanisms that control miRNA expression and function, including transcription, stability, posttranscriptional modifications, and interaction with RNA binding proteins and other non-coding RNAs. We also discuss which of these mechanisms are responsible for the nutrient-mediated regulation of the activity of β-cell miRNAs and identify some of the more important knowledge gaps in the field.
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Affiliation(s)
| | - Aida Martinez-Sanchez
- Section of Cell Biology and Functional Genomics, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
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14
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Nakashiki S, Miuma S, Mishima H, Masumoto H, Hidaka M, Soyama A, Kanda Y, Fukushima M, Haraguchi M, Sasaki R, Miyaaki H, Ichikawa T, Takatsuki M, Eguchi S, Yoshiura KI, Nakao K. Bile extracellular vesicles from end-stage liver disease patients show altered microRNA content. Hepatol Int 2021; 15:821-830. [PMID: 34076850 DOI: 10.1007/s12072-021-10196-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/17/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Extracellular vesicles (EVs) have recently attracted attention as novel diagnostic biomarkers and therapeutic tools. Several reports have correlated blood EVs with liver diseases. However, blood EVs do not reflect the liver state as it contains other systemically circulating EVs. Therefore, we focused on bile EVs, which are secreted directly from the liver, for the identification of potential biomarkers of liver failure. METHODS Bile samples were collected from liver transplant recipients (n = 21) diagnosed with end-stage liver disease (ESLD) and donors (normal liver, NL; n = 18) during transplantation. Bile EVs were extracted using ultracentrifugation. RESULTS Nanoparticle tracking analysis showed that bile EV concentration was significantly higher in recipients than in donors. Among recipients, bile EV concentration was remarkably higher in those with hepatocellular carcinoma. Next-generation sequencing revealed 461 and 465 types of microRNAs (miRNAs) in donor and recipient bile EVs, respectively, with no significant difference in diversity between the groups. Among 43 high-expression miRNAs, the expression of 86.0% of the miRNAs was higher in the bile EVs of recipients than in those of donors. Quantitative PCR validation showed that the levels of miR-17, miR-92a, miR-25, miR-423, and miR-451a significantly increased in bile EVs of recipients. Levels of miR-17 were remarkably higher in recipients with alcoholic ESLD. CONCLUSIONS Secretion of EVs into the bile and their miRNA content increase in the ESLD state. Additionally, miRNA levels in bile EVs are not correlated with those in serum EVs. Bile EVs could be promising novel biomarkers for liver diseases.
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Affiliation(s)
- Suguru Nakashiki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Satoshi Miuma
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Hiroyuki Mishima
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Hiroshi Masumoto
- Biochemical Research Support Center, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Masaaki Hidaka
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8523, Japan
| | - Akihiko Soyama
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8523, Japan
| | - Yasuko Kanda
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masanori Fukushima
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masafumi Haraguchi
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Ryu Sasaki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Hisamitsu Miyaaki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Tatsuki Ichikawa
- Department of Gastroenterology Shinti, Nagasaki Harbor Medical Center City Hospital, 6-39, Nagasaki, 850-8555, Japan
| | - Mitsuhisa Takatsuki
- Department of Digestive and General Surgery, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan
| | - Susumu Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8523, Japan
| | - Koh-Ichiro Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Kazuhiko Nakao
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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15
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Zou X, Xia T, Li M, Wang T, Liu P, Zhou X, Huang Z, Zhu W. MicroRNA profiling in serum: Potential signatures for breast cancer diagnosis. Cancer Biomark 2021; 30:41-53. [PMID: 32894240 DOI: 10.3233/cbm-201547] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Circulating microRNAs (miRNAs) prove to be potential non-invasive indicators of cancers. The purpose of this study is to profile serum miRNA expression in breast cancer (BC) patients to find potential biomarkers for BC diagnosis. METHODS The miRNA expression patterns of serum samples from 216 BC patients and 214 normal control subjects were compared. A four-phase validation was conducted for biomarker identification. In the screening phase, the Exiqon miRNA qPCR panel was employed to select candidates, which were further analyzed by quantitative reverse transcriptase PCR in the following training, testing, and external validation phases. RESULTS A 12-miRNA (let-7b-5p, miR-106a-5p, miR-19a-3p, miR-19b-3p, miR-20a-5p, miR-223-3p, miR-25-3p, miR-425-5p, miR-451a, miR-92a-3p, miR-93-5p, and miR-16-5p) panel in serum was constructed. The diagnostic performance of the panel was assessed using ROC curve analyses. The area under the curves (AUCs) were 0.952, 0.956, 0.941 and 0.950 for the four separate phases, respectively. Additionally, the expression features of the 12 miRNAs were further explored in 32 pairs of BC tumor and para-tumor tissues, and 32 pairs of serum exosomes samples from patients and healthy subjects. miR-16-5p, miR-106a-5p, miR-25-3p, miR-425-5p, and miR-93-5p were highly overexpressed and let-7b-5p was conversely downregulated in tumor tissues. Excluding miR-20a-5p and miR-223-3p, the 10 other miRNAs were all significantly upregulated in BC serum-derived exosomes. CONCLUSION A signature consisting of 12 serum miRNAs was identified and showed potential for use in non-invasive diagnosis of BC.
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Affiliation(s)
- Xuan Zou
- First Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China.,First Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tiansong Xia
- Department of Breast Surgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,First Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Minghui Li
- Department of Breast Surgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,First Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tongshan Wang
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ping Liu
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xin Zhou
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zebo Huang
- Department of Oncology, Affiliated Hospital of Jiangnan University and the Fourth People's Hospital of Wuxi, Wuxi, Jiangsu, China
| | - Wei Zhu
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Oncology and Radiotherapy, Nanjing Pukou Central Hospital, Nanjing, Jiangsu, China
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Abstract
Chronic infection of the liver by the hepatitis B virus (HBV) is associated with increased risk for developing hepatocellular carcinoma (HCC). A multitude of studies have investigated the mechanism of liver cancer pathogenesis due to chronic HBV infection. Chronic inflammation, expression of specific viral proteins such as HBx, the integration site of the viral genome into the host genome, and the viral genotype, are key players contributing to HCC pathogenesis. In addition, the genetic background of the host and exposure to environmental carcinogens are also predisposing parameters in hepatocarcinogenesis. Despite the plethora of studies, the molecular mechanism of HCC pathogenesis remains incompletely understood. In this review, the focus is on epigenetic mechanisms involved in the pathogenesis of HBV-associated HCC. Epigenetic mechanisms are dynamic molecular processes that regulate gene expression without altering the host DNA, acting by modifying the host chromatin structure via covalent post-translational histone modifications, changing the DNA methylation status, expression of non-coding RNAs such as microRNAs and long noncoding RNAs, and altering the spatial, 3-D organization of the chromatin of the virus-infected cell. Herein, studies are described that provide evidence in support of deregulation of epigenetic mechanisms in the HBV-infected/-replicating hepatocyte and their contribution to hepatocyte transformation. In contrast to genetic mutations which are permanent, epigenetic alterations are dynamic and reversible. Accordingly, the identification of essential molecular epigenetic targets involved in HBV-mediated HCC pathogenesis offers the opportunity for the design and development of novel epigenetic therapeutic approaches.
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Affiliation(s)
- Ourania Andrisani
- Department of Basic Medical Sciences and Purdue Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
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17
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mRNA and miRNA Expression Analyses of the MYC/ E2F/miR-17-92 Network in the Most Common Pediatric Brain Tumors. Int J Mol Sci 2021; 22:ijms22020543. [PMID: 33430425 PMCID: PMC7827072 DOI: 10.3390/ijms22020543] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 12/25/2022] Open
Abstract
Numerous molecular factors disrupt the correctness of the cell cycle process leading to the development of cancer due to increased cell proliferation. Among known causative factors of such process is abnormal gene expression. Nowadays in the light of current knowledge such alterations are frequently considered in the context of mRNA–miRNA correlation. One of the molecular factors with potential value in tumorigenesis is the feedback loop between MYC and E2F genes in which miR-17-5p and miR-20a from the miR-17-92 cluster are involved. The current literature shows that overexpression of the members of the OncomiR-1 are involved in the development of many solid tumors. In the present work, we investigated the expression of components of the MYC/E2F/miR-17-92 network and their closely related elements including members of MYC and E2F families and miRNAs from two paralogs of miR-17-92: miR-106b-25 and miR-106a-363, in the most common brain tumors of childhood, pilocytic astrocytoma (PA), WHO grade 1; ependymoma (EP), WHO grade 2; and medulloblastoma (MB), WHO grade 4. We showed that the highest gene expression was observed in the MYC family for MYCN and in the E2F family for E2F2. Positive correlation was observed between the gene expression and tumor grade and type, with the highest expression being noted for medulloblastomas, followed by ependymomas, and the lowest for pilocytic astrocytomas. Most members of miR-17-92, miR-106a-363 and miR-106b-25 clusters were upregulated and the highest expression was noted for miR-18a and miR-18b. The rest of the miRNAs, including miR-19a, miR-92a, miR-106a, miR-93, or miR-25 also showed high values. miR-17-5p, miR-20a obtained a high level of expression in medulloblastomas and ependymomas, while close to the control in the pilocytic astrocytoma samples. miRNA expression also depended on tumor grade and histology.
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18
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Chen W, Huang L, Liang J, Ye Y, Yu S, Zhang Y. Long noncoding RNA small nucleolar RNA host gene 15 deteriorates liver cancer via microRNA-18b-5p/LIM-only 4 axis. IUBMB Life 2020; 73:349-361. [PMID: 33372376 DOI: 10.1002/iub.2431] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/22/2020] [Accepted: 12/07/2020] [Indexed: 12/12/2022]
Abstract
Extensive studies have explored the involvements of long noncoding RNAs (lncRNAs) in liver cancer. Limitedly, the concrete function of lncRNA small nucleolar RNA host gene 15 (SNHG15) is still elusive. Therefore, the work was initiated to unearth SNHG15-oriented mechanism in liver cancer. Liver cancer tissues were resected. The connection between SNHG15 expression with prognosis and clinicopathological traits of liver cancer patients was evaluated. Liver cancer cells SMMC-7721 were transfected with restored microRNA (miR)-18b-5p or depleted SNHG15 to discover their effects on the proliferation, migration, invasion, cycle arrest, and apoptosis of SMMC-7721 cells. The transfected SMMC-7721 cells were injected into nude mice for further investigation. SNHG15, miR-18b-5p, and LIM-only 4 (LMO4) expressions in tissues and cells were tested. The regulatory connections among SNHG15, miR-18b-5p, and LMO4 were detected. SNHG15 and LMO4 were overexpressed while miR-18b-5p was downregulated in liver cancer tissues and cells. Up-regulated SNHG15 was connected with inferior prognosis and aggressive behaviors of liver cancer patients. SNHG15 knockdown or miR-18b-5p restoration depressed SMMC-7721 cell growth in vivo and in vitro. SNHG15 bound to miR-18b-5p and miR-18b-5p targeted LMO4. The work has illuminated that silencing SNHG15 represses liver cancer progression by modulating miR-18b-5p and LMO4, indicating the therapeutic potency of SNHG15/miR-18b-5p/LMO4 axis in liver cancer.
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Affiliation(s)
- Wei Chen
- Department of Gastroenterology, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Li Huang
- Department of Neurology, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Junhua Liang
- Department of Gastroenterology, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Yingjian Ye
- Department of Gastroenterology, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Sihao Yu
- Department of Gastroenterology, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Yijing Zhang
- Department of Gastroenterology, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
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Yang H, Lin J, Jiang J, Ji J, Wang C, Zhang J. miR-20b-5p functions as tumor suppressor microRNA by targeting cyclinD1 in colon cancer. Cell Cycle 2020; 19:2939-2954. [PMID: 33044899 DOI: 10.1080/15384101.2020.1829824] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
MicroRNA functions as an oncogenic regulator or tumor suppressor in various human tumors. Although bioinformatics analysis suggested that miRNA-20b-5p may be associated with the tumorigenesis, its role in colon cancer remains elusive. To investigate the role of miRNA-20b-5p, HCT116 cell, a human colon cancer cell line used in therapeutic research and drug screenings, was chosen as a model system for our in vitro studies. We first carried out bioinformatics and microarray analysis. To gain further mechanism insight, flow cytometry was performed to determine cell apoptosis and cell cycle, and western blot or immunohistochemistry were employed to check the expression of CCND1/CDK/FOXM1 axis in HCT116 cells. In addition, wound-healing migration assay and transwell assay were conducted to uncover the effect of miR-20b-5p on tumor migration and invasion. Finally, we examined the role of miR-20b-5p by subcutaneous xenograft mouse models. Our data have shown that miRNA-20b-5p inhibited the cell cycle, migration, and invasion in HCT116 cells, but had no effect on cell apoptosis. CyclinD1 (CCND1) was identified as a direct target of miR-20b-5p. Overexpression of miRNA-20b-5p downregulated CCND1 level in HCT-116 cells. Mechanically, the inhibition of cell cycle, migration, and invasion of CC cells mediated by miRNA-20b-5p are through regulating the CCND1/CDK4/FOXM1 axis. Furthermore, miRNA-20b-5p inhibited the tumorigenesis in Balb/c nude mice CC xenograft models. Our data demonstrated that miR-20b-5p may serve as a tumor suppressor in colon cancer by negatively regulating CCND1, implying that miR-20b-5p could be a potential therapeutic target for the treatment of colon cancer.
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Affiliation(s)
- Hui Yang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine , Shanghai, China
| | - Jian Lin
- State Key Laboratory for Medical Genomics, Shanghai Institute of Hematology and Collaborative Innovation Center of Hematology, National Research Center for Translational Medicine, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine and School of Life Sciences and Biotechnology , Shanghai, China
| | - Jinling Jiang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine , Shanghai, China
| | - Jun Ji
- Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine , Shanghai, China
| | - Chao Wang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine , Shanghai, China
| | - Jun Zhang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine , Shanghai, China.,Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine , Shanghai, China
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20
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Mani SKK, Yan B, Cui Z, Sun J, Utturkar S, Foca A, Fares N, Durantel D, Lanman N, Merle P, Kazemian M, Andrisani O. Restoration of RNA helicase DDX5 suppresses hepatitis B virus (HBV) biosynthesis and Wnt signaling in HBV-related hepatocellular carcinoma. Theranostics 2020; 10:10957-10972. [PMID: 33042264 PMCID: PMC7532671 DOI: 10.7150/thno.49629] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/11/2020] [Indexed: 02/07/2023] Open
Abstract
Rationale: RNA helicase DDX5 is downregulated during hepatitis B virus (HBV) replication, and poor prognosis HBV-related hepatocellular carcinoma (HCC). The aim of this study is to determine the mechanism and significance of DDX5 downregulation for HBV-driven HCC, and identify biologics to prevent DDX5 downregulation. Methods: Molecular approaches including immunoblotting, qRT-PCR, luciferase transfections, hepatosphere assays, Assay for Transposase-Accessible Chromatin sequencing (ATAC-seq), and RNA-seq were used with cellular models of HBV replication, HBV infection, and HBV-related liver tumors, as well as bioinformatic analyses of liver cancer cells from two independent cohorts. Results: We demonstrate that HBV infection induces expression of the proto-oncogenic miR17~92 and miR106b~25 clusters which target the downregulation of DDX5. Increased expression of these miRNAs is also detected in HBV-driven HCCs exhibiting reduced DDX5 mRNA. Stable DDX5 knockdown (DDX5KD) in HBV replicating hepatocytes increased viral replication, and resulted in hepatosphere formation, drug resistance, Wnt activation, and pluripotency gene expression. ATAC-seq of DDX5KD compared to DDX5 wild-type (WT) cells identified accessible chromatin regions enriched in regulation of Wnt signaling genes. RNA-seq analysis comparing WT versus DDX5KD cells identified enhanced expression of multiple genes involved in Wnt pathway. Additionally, expression of Disheveled, DVL1, a key regulator of Wnt pathway activation, was significantly higher in liver cancer cells with low DDX5 expression, from two independent cohorts. Importantly, inhibitors (antagomirs) to miR17~92 and miR106b~25 restored DDX5 levels, reduced DVL1 expression, and suppressed both Wnt activation and viral replication. Conclusion : DDX5 is a negative regulator of Wnt signaling and hepatocyte reprogramming in HCCs. Restoration of DDX5 levels by miR17~92 / miR106b~25 antagomirs in HBV-infected patients can be explored as both antitumor and antiviral strategy.
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21
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Liang T, Han L, Guo L. Rewired functional regulatory networks among miRNA isoforms (isomiRs) from let-7 and miR-10 gene families in cancer. Comput Struct Biotechnol J 2020; 18:1238-1248. [PMID: 32542110 PMCID: PMC7280754 DOI: 10.1016/j.csbj.2020.05.001] [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: 10/21/2019] [Revised: 05/05/2020] [Accepted: 05/05/2020] [Indexed: 01/05/2023] Open
Abstract
Classical microRNA (miRNA) has been so far believed as a single sequence, but it indeed contains multiple miRNA isoforms (isomiR) with various sequences and expression patterns. It is not clear whether these diverse isomiRs have potential relationships and whether they contribute to miRNA:mRNA interactions. Here, we aimed to reveal the potential evolutionary and functional relationships of multiple isomiRs based on let-7 and miR-10 gene families that are prone to clustering together on chromosomes. Multiple isomiRs within gene families showed similar functions to their canonical miRNAs, indicating selection of the predominant sequence. IsomiRs containing novel seed regions showed increased/decreased biological function depending on whether they had more/less specific target mRNAs than their annotated seed. Few gene ontology(GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were shared among the target genes of the annotated seeds and the novel seeds. Various let-7 isomiRs with novel seed regions may cause opposing drug responses despite the fact that they are generated from the same miRNA locus and have highly similar sequences. IsomiRs, especially the dominant isomiRs with shifted seeds, may disturb the coding-non-coding RNA regulatory network. These findings provide insight into the multiple isomiRs and isomiR-mediated control of gene expression in the pathogenesis of cancer.
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Key Words
- ACC, adrenocortical carcinoma
- BLCA, bladder urothelial carcinoma
- BRCA, breast invasive carcinoma
- CESC, cervical squamous cell carcinoma and endocervical adenocarcinoma
- CHOL, cholangiocarcinoma
- COAD, colon adenocarcinoma
- ESCA, esophageal carcinoma
- Function
- GBM, glioblastoma multiforme
- HNSC, head and neck squamous cell carcinoma
- IsomiR
- KICH, kidney chromophobe
- KIRC, kidney renal clear cell carcinoma
- KIRP, kidney renal papillary cell carcinoma
- LAML, acute myeloid leukemia
- LGG, brain Lower grade glioma
- LIHC, liver hepatocellular carcinoma
- LUAD, lung adenocarcinoma
- LUSC, lung squamous cell carcinoma
- Let-7
- MESO, mesothelioma
- MicroRNA (miRNA)
- Network
- OV, ovarian serous cystadenocarcinoma
- PAAD, pancreatic adenocarcinoma
- PCPG, pheochromocytoma and paraganglioma
- PRAD, prostate adenocarcinoma
- READ, rectum adenocarcinoma
- SARC, sarcoma
- SKCM, skin cutaneous melanoma
- STAD, stomach adenocarcinoma
- TGCT, testicular germ cell tumors
- THCA, thyroid carcinoma
- THYM, thymoma
- TSG, tumor suppressor gene
- UCEC, uterine corpus endometrial carcinoma
- UCS, uterine carcinosarcoma
- UVM, uveal melanoma
- miR-10
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Affiliation(s)
- Tingming Liang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, School of Life Science, Nanjing Normal University, Nanjing 210023, China
| | - Leng Han
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX 77030, USA
| | - Li Guo
- Department of Bioinformatics, Smart Health Big Data Analysis and Location Services Engineering Lab of Jiangsu Province, School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing, China
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22
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Liu Y, Chen X, Chen X, Liu J, Gu H, Fan R, Ge H. Long non-coding RNA HOTAIR knockdown enhances radiosensitivity through regulating microRNA-93/ATG12 axis in colorectal cancer. Cell Death Dis 2020; 11:175. [PMID: 32144238 PMCID: PMC7060216 DOI: 10.1038/s41419-020-2268-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 12/24/2019] [Accepted: 01/09/2020] [Indexed: 12/25/2022]
Abstract
Colorectal cancer (CRC) is a global healthcare problem. Radioresistance is a huge setback for CRC radiotherapy. In this text, the roles and molecular mechanisms of long non-coding RNA HOTAIR in CRC tumorigenesis and radioresistance were further investigated. ATG12 mRNA, HOTAIR, and microRNA-93 (miR-93) levels were measured by quantitative reverse transcription polymerase chain reaction (RT-qPCR) assay. Protein levels of LC3 I, LC3 II, p62, ATG12, cleaved caspase 3, Bax, and Bcl-2 were detected by western blotting assay in cells and were examined by immunohistochemistry (IHC) assay in tissues. Cell survival fractions, viability, and apoptotic rates were determined by clonogenic survival assay, CCK-8 assay, and flow cytometry analysis, respectively. The relationships of HOTAIR, miR-93, and ATG12 were tested by bioinformatics analysis and luciferase reporter assay. Mouse xenograft tumor models were established to investigate the influence of HOTAIR knockdown on CRC radioresistance in vivo. We found that HOTAIR expression was markedly upregulated in plasma from CRC patients after radiotherapy and CRC cells after irradiation. HOTAIR knockdown, miR-93 overexpression, or ATG12 silencing weakened cell viability, induced cell apoptosis, inhibited cell autophagy, and enhanced cell radiosensitivity in CRC. HOTAIR exerted its functions by downregulating miR-93. Moreover, HOTAIR functioned as a molecular sponge of miR-93 to regulate ATG12 expression. ATG12 protein expression was markedly upregulated and associated with miR-93 and HOTAIR expression in CRC tissues. Furthermore, HOTAIR knockdown enhanced radiosensitivity of CRC xenograft tumors by regulating miR-93/ATG12 axis. In conclusion, HOTAIR knockdown potentiated radiosensitivity through regulating miR-93/ATG12 axis in CRC, further elucidating the roles and molecular basis of HOTAIR in CRC radioresistance.
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Affiliation(s)
- Yingqiang Liu
- Department of General Surgery, The Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xijuan Chen
- Department of Radiation Oncology, The Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiling Chen
- Department of Geriatric Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Junqi Liu
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hao Gu
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Ruitai Fan
- Department of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hong Ge
- Department of Radiation Oncology, The Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, Henan, China.
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23
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Tai L, Huang CJ, Choo KB, Cheong SK, Kamarul T. Oxidative Stress Down-Regulates MiR-20b-5p, MiR-106a-5p and E2F1 Expression to Suppress the G1/S Transition of the Cell Cycle in Multipotent Stromal Cells. Int J Med Sci 2020; 17:457-470. [PMID: 32174776 PMCID: PMC7053300 DOI: 10.7150/ijms.38832] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 12/30/2019] [Indexed: 12/24/2022] Open
Abstract
Oxidative stress has been linked to senescence and tumorigenesis via modulation of the cell cycle. Using a hydrogen peroxide (H2O2)-induced oxidative stress-induced premature senescence (OSIPS) model previously reported by our group, this study aimed to investigate the effects of oxidative stress on microRNA (miRNA) expression in relation to the G1-to-S-phase (G1/S) transition of the cell cycle and cell proliferation. On global miRNA analysis of the OSIPS cells, twelve significantly up- or down-regulated miRNAs were identified, the target genes of which are frequently associated with cancers. Four down-regulated miR-17 family miRNAs are predicted to target key pro- and anti-proliferative proteins of the p21/cyclin D-dependent kinase (CDK)/E2F1 pathway to modulate G1/S transition. Two miR-17 miRNAs, miR-20-5p and miR-106-5p, were confirmed to be rapidly and stably down-regulated under oxidative stress. While H2O2 treatment hampered G1/S transition and suppressed DNA synthesis, miR-20b-5p/miR-106a-5p over-expression rescued cells from growth arrest in promoting G1/S transition and DNA synthesis. Direct miR-20b-5p/miR-106a-5p regulation of p21, CCND1 and E2F1 was demonstrated by an inverse expression relationship in miRNA mimic-transfected cells. However, under oxidative stress, E2F1 expression was down-regulated, consistent with hampered G1/S transition and suppressed DNA synthesis and cell proliferation. To explain the observed E2F1 down-regulation under oxidative stress, a scheme is proposed which includes miR-20b-5p/miR-106a-5p-dependent regulation, miRNA-E2F1 autoregulatory feedback and E2F1 response to repair oxidative stress-induced DNA damages. The oxidative stress-modulated expression of miR-17 miRNAs and E2F1 may be used to develop strategies to retard or reverse MSC senescence in culture, or senescence in general.
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Affiliation(s)
- Lihui Tai
- Centre for Stem Cell Research, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia.,Postgraduate Program, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
| | - Chiu-Jung Huang
- Department of Animal Science & Graduate Institute of Biotechnology, Chinese Culture University, Taipei, Taiwan
| | - Kong Bung Choo
- Centre for Stem Cell Research, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia.,Department of Preclinical Sciences, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
| | - Soon Keng Cheong
- Centre for Stem Cell Research, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia.,Dean's Office, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
| | - Tunku Kamarul
- Tissue Engineering Group, National Orthopedic Centre of Excellence for Research and Learning & Department of Orthopedic Surgery, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
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24
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Reciprocal regulation of miR-1205 and E2F1 modulates progression of laryngeal squamous cell carcinoma. Cell Death Dis 2019; 10:916. [PMID: 31801947 PMCID: PMC6893029 DOI: 10.1038/s41419-019-2154-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/01/2019] [Accepted: 11/07/2019] [Indexed: 12/20/2022]
Abstract
The burgeoning functions of many microRNAs (miRs) have been well study in cancer. However, the level and function of miR-1205 in laryngeal squamous cell cancer remains unknown. In the current research, we validated that miR-1205 was notably downregulated in human laryngeal squamous cell carcinoma (LSCC) samples in comparison with tissues adjacent to LSCC, and correlated with T stage, lymph node metastasis, and clinical stage. Using Kaplan–Meier analysis indicates that high expression of miR-1205 has a favorable prognosis for patients with LSCC. Functional assays show that enforced miR-1205 expression attenuates the migration, growth, and invasion of LSCC cells. And E2F1 is verified to be a target of miR-1205, while E2F1 binds to miR-1205 promoter and transcriptionally inhibits miR-1205 expression. Overexpression of E2F1 reverses the inhibitory impacts of miR-1205 on LSCC cells in part. Importantly, E2F1 is abnormally increased in LSCC tissues, and its protein levels were inversely relevant to miR-1205 expression. High E2F1 protein level is in connection with clinical stage, T stage, lymph node metastasis, and poor prognosis. Consequently, reciprocal regulation of miR-1205 and E2F1 plays a crucial role in the progression of LSCC, suggesting a new miR-1205/E2F1-based clinical application for patients of LSCC.
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25
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Zhan Y, Liu L, Zhao T, Sun J, Cui D, Li Y, Chang Y. MicroRNAs involved in innate immunity regulation in the sea cucumber: A review. FISH & SHELLFISH IMMUNOLOGY 2019; 95:297-304. [PMID: 31669896 DOI: 10.1016/j.fsi.2019.10.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/23/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
The sea cucumber is one of the most economically significant echinoderms. The immunity against exogenous stimulation of sea cucumber is of great academic and economic importance. MicroRNAs (miRNAs) are a class of short endogenous non-coding RNAs (ncRNAs) that are considered as vital regulators of both innate and adaptive immune responses in most eukaryotes. In sea cucumbers, some miRNAs (such as miR-133, miR-137, and miR-2008, among others) that participate in the regulation of innate immunity have been recently identified and characterized. This review focuses on those known miRNAs and their corresponding target genes that participate in the regulation of the complement system, Toll-like receptor (TLR) pathway, reactive oxygen species (ROS) production and apoptosis pathways in sea cucumbers. Moreover, we cover immune-related miRNA investigations in sea cucumbers that provide insights into developing more miRNA-based biomarkers and therapeutic strategies for sea cucumber diseases.
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Affiliation(s)
- Yaoyao Zhan
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Li Liu
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Tanjun Zhao
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Jingxian Sun
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Dongyao Cui
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Yingying Li
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China.
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26
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Pfau ML, Menard C, Cathomas F, Desland F, Kana V, Chan KL, Shimo Y, LeClair K, Flanigan ME, Aleyasin H, Walker DM, Bouchard S, Mack M, Hodes GE, Merad MM, Russo SJ. Role of Monocyte-Derived MicroRNA106b∼25 in Resilience to Social Stress. Biol Psychiatry 2019; 86:474-482. [PMID: 31101319 PMCID: PMC6717005 DOI: 10.1016/j.biopsych.2019.02.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 02/13/2019] [Accepted: 02/28/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Clinical studies suggest that heightened peripheral inflammation contributes to the pathogenesis of stress-related disorders, including major depressive disorder. However, the molecular mechanisms within peripheral immune cells that mediate enhanced stress vulnerability are not well known. Because microRNAs (miRs) are important regulators of immune response, we sought to examine their role in mediating inflammatory and behavioral responses to repeated social defeat stress (RSDS), a mouse model of stress vulnerability that produces susceptible and resilient phenotypes. METHODS We isolated Ly6chigh monocytes via fluorescence-activated cell sorting in the blood of susceptible and resilient mice following RSDS and profiled miR expression via quantitative real-time polymerase chain reaction. Bone marrow chimeric mice were generated to confirm a causal role of the miR-106b∼25 cluster in bone marrow-derived leukocytes in mediating stress resilience versus susceptibility. RESULTS We found that RSDS produces an increase in circulating Ly6chigh inflammatory monocytes in both susceptible and resilient mice. We next investigated whether intrinsic leukocyte posttranscriptional mechanisms contribute to individual differences in stress response and the resilient phenotype. Of the miRs profiled in our panel, eight were significantly regulated by RSDS within Ly6chigh monocytes, including miR-25-3p, a member of the miR-106b∼25 cluster. Selective knockout of the miR-106b∼25 cluster in peripheral leukocytes promoted behavioral resilience to RSDS. CONCLUSIONS Our results identify the miR-106b∼25 cluster as a key regulator of stress-induced inflammation and depression that may represent a novel therapeutic target for drug development.
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Affiliation(s)
- Madeline L Pfau
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Caroline Menard
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Department of Psychiatry and Neuroscience, Faculty of Medicine and Cervo Brain Research Center, Université Laval, Quebec City, Quebec, Canada
| | - Flurin Cathomas
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Fiona Desland
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Department of Oncological Science, Tisch Cancer Institute and Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Veronika Kana
- Department of Oncological Science, Tisch Cancer Institute and Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Kenny L Chan
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Yusuke Shimo
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Katherine LeClair
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Meghan E Flanigan
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Hossein Aleyasin
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Deena M Walker
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Sylvain Bouchard
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Matthias Mack
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Georgia E Hodes
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
| | - Miriam M Merad
- Department of Oncological Science, Tisch Cancer Institute and Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Scott J Russo
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York; Center for Affective Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York.
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27
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Li F, Huang J, Liu J, Xu W, Yuan Z. Multivariate analysis of clinicopathological and prognostic significance of miRNA 106b~25 cluster in gastric cancer. Cancer Cell Int 2019; 19:200. [PMID: 31384175 PMCID: PMC6664745 DOI: 10.1186/s12935-019-0918-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/22/2019] [Indexed: 12/11/2022] Open
Abstract
Background miRNA 106b~25 cluster were demonstrated to be an oncogene. In previous study, we had analyzed the diagnostic significance of miRNA 106b~25 based on its carcinogenesis effect. The significance of miRNA 106b~25 for prognosis of gastric cancer were not researched. Methods We applied multivariate analysis of PCA, PLS-DA and Cox Regression for clinicopathological features and survival time to explore the significance of miRNA 106b~25 expression in plasma and cancer tissues for gastric cancer. Results The expression of miRNA 106b, miRNA 93 and miRNA 25 in plasma were positively correlated with their expression in tumor tissues. Via PCA analysis, it was found that miRNA 106b~25 expression in plasma and tumor, T, N and TNM stage were correlated with each other. Via PLS-DA analysis, we identified that T, N and TNM stage were important factors for miRNA 106b~25 expression both in plasma and tumor (all VIP value > 1.2). According to loading weights of variables for the first and second components, it was found that the importance of the miRNA 106b~25s expression carried with the progressed stage of gastric cancer. In the survival analysis, COX regression showed that T stage, plasma miRNA 106b and tumor miRNA 93 were significant risk factors for overall survival [HR: 0.400 (0.205–0.780); P = 0.007; HR: 0.371 (0.142–0.969), P = 0.043; 0.295 (0.134–0.650), P = 0.002]. Conclusion Plasma and tumor miRNA 106b~25 expression correlated with T, N and TNM stage. Increased miRNA 106b~25 expression was important characters carried with gastric cancer progression. T stage, plasma miRNA106b and tumor miRNA 93 significant risk factors for overall survival. Electronic supplementary material The online version of this article (10.1186/s12935-019-0918-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fangxuan Li
- 1Department of Radiotherapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Huanhuxi Road, Hexi District, Tianjin, 300060 China.,2Department of Cancer Prevention, Tianjin Medical University Cancer Institute and Hospital, Huanhuxi Road, Hexi District, Tianjin, 300060 China
| | - Jinchao Huang
- 2Department of Cancer Prevention, Tianjin Medical University Cancer Institute and Hospital, Huanhuxi Road, Hexi District, Tianjin, 300060 China.,3Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Huanhuxi Road, Hexi District, Tianjin, 300060 China
| | - Juntian Liu
- 2Department of Cancer Prevention, Tianjin Medical University Cancer Institute and Hospital, Huanhuxi Road, Hexi District, Tianjin, 300060 China
| | - Wengui Xu
- 3Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Huanhuxi Road, Hexi District, Tianjin, 300060 China
| | - Zhiyong Yuan
- 1Department of Radiotherapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Huanhuxi Road, Hexi District, Tianjin, 300060 China
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Xu K, Xiong W, Zhao S, Wang B. MicroRNA-106b serves as a prognostic biomarker and is associated with cell proliferation, migration, and invasion in osteosarcoma. Oncol Lett 2019; 18:3342-3348. [PMID: 31452813 DOI: 10.3892/ol.2019.10666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 06/06/2019] [Indexed: 12/28/2022] Open
Abstract
MicroRNAs (miRNAs) have been demonstrated to be involved in tumor progression of various human malignancies. The purpose of this study was to investigate the expression patterns and prognostic value of microRNA-106b (miR-106b) in osteosarcoma (OS) and to examine its functional role in OS progression. Reverse transcription-quantitative PCR (RT-qPCR) was used to estimate the expression of miR-106b in OS tissues and cells. The prognostic value of miR-106b in OS was evaluated by plotting Kaplan-Meier survival curves and performing Cox analyses. Cell experiments were carried out to examine the effects of miR-106b on OS cell proliferation, migration, and invasion. The expression of miR-106b was elevated in both OS tissues and cells compared with the expression in normal control tissues and cells (P<0.001). miR-106b expression was associated with metastasis (P=0.028) and Tumor-Node-Metastasis stage (P=0.017). Patients with high miR-106b expression levels had a poorer overall survival rate compared with those with low miR-106b expression levels (log-rank P=0.001). Multivariate Cox analyses indicated that miR-106b expression was an independent prognostic factor for patients with OS (hazard ratio=2.769; 95% confidence interval=1.369-5.599; P=0.005). The results of cell experiments implied that the upregulation of miR-106b could promote OS cell proliferation, migration and invasion, whereas the downregulation of miR-106b could suppress these functions (P<0.05). Taken together, this study's results indicated that the overexpression of miR-106b is associated with a poor prognosis for patients with OS and that overexpression promotes OS cell proliferation, migration, and invasion. This study may provide a novel prognostic biomarker and a candidate therapeutic target for OS treatment.
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Affiliation(s)
- Ke Xu
- Orthopedics Centre, Ningbo No. 2 Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Wenhua Xiong
- Orthopedics Centre, Ningbo No. 2 Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Shoujun Zhao
- Orthopedics Centre, Ningbo No. 2 Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Bin Wang
- Orthopedics Centre, Ningbo No. 2 Hospital, Ningbo, Zhejiang 315010, P.R. China
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Dolomatov S, Zukow W, Novikov N, Markaryan A, Eremeeva E. EXPRESSION OF THE RENIN-ANGIOTENSIN SYSTEM COMPONENTS IN ONCOLOGIC DISEASES. Acta Clin Croat 2019; 58:354-364. [PMID: 31819334 PMCID: PMC6884393 DOI: 10.20471/acc.2019.58.02.21] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The literature devoted to changes in the expression of the renin-angiotensin system (RAS) proteins of cancer cells was analyzed. The dynamics of RAS protein expression in malignant tumors and the possible role of epigenetic mechanisms in these processes are briefly reviewed. Through research of the epigenetic mechanisms in cancer, principally new techniques for their correction based on the use of selective regulatory systems of covalent modification of histone proteins (for example, deacetylase inhibitor) and microRNA synthesis technologies have been developed. Literature data show promising pharmacological correction of epigenetic modification of chromatin in the treatment of cancer.
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Affiliation(s)
| | - Walery Zukow
- 1Department of Medical Biology, Medical Academy SI Georgievsky, Crimea Federal University, Simferopol, Russian Federation jurisdiction; 2Faculty of Earth, Nicolaus Copernicus University, Toruń, Poland; 3A. Tsyb Medical Radiological Research Center, branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Obninsk, Kaluga Region, Russian Federation
| | - Nikolay Novikov
- 1Department of Medical Biology, Medical Academy SI Georgievsky, Crimea Federal University, Simferopol, Russian Federation jurisdiction; 2Faculty of Earth, Nicolaus Copernicus University, Toruń, Poland; 3A. Tsyb Medical Radiological Research Center, branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Obninsk, Kaluga Region, Russian Federation
| | - Alexandra Markaryan
- 1Department of Medical Biology, Medical Academy SI Georgievsky, Crimea Federal University, Simferopol, Russian Federation jurisdiction; 2Faculty of Earth, Nicolaus Copernicus University, Toruń, Poland; 3A. Tsyb Medical Radiological Research Center, branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Obninsk, Kaluga Region, Russian Federation
| | - Elena Eremeeva
- 1Department of Medical Biology, Medical Academy SI Georgievsky, Crimea Federal University, Simferopol, Russian Federation jurisdiction; 2Faculty of Earth, Nicolaus Copernicus University, Toruń, Poland; 3A. Tsyb Medical Radiological Research Center, branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Obninsk, Kaluga Region, Russian Federation
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Miroshnichenko S, Patutina O. Enhanced Inhibition of Tumorigenesis Using Combinations of miRNA-Targeted Therapeutics. Front Pharmacol 2019; 10:488. [PMID: 31156429 PMCID: PMC6531850 DOI: 10.3389/fphar.2019.00488] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/17/2019] [Indexed: 12/18/2022] Open
Abstract
The search for effective strategies to inhibit tumorigenesis remains one of the most relevant scientific challenges. Among the most promising approaches is the direct modulation of the function of short non-coding RNAs, particularly miRNAs. These molecules are propitious targets for anticancer therapy, since they perform key regulatory roles in a variety of signaling cascades related to cell proliferation, apoptosis, migration, and invasion. The development of pathological states is often associated with deregulation of miRNA expression. The present review describes in detail the strategies aimed at modulating miRNA activity that invoke antisense oligonucleotide construction, such as small RNA zippers, miRNases (miRNA-targeted artificial ribonucleases), miRNA sponges, miRNA masks, anti-miRNA oligonucleotides, and synthetic miRNA mimics. The broad impact of developed miRNA-based therapeutics on the various events of tumorigenesis is also discussed. Above all, the focus of this review is to evaluate the results of the combined application of different miRNA-based agents and chemotherapeutic drugs for the inhibition of tumor development. Many studies indicate a considerable increase in the efficacy of anticancer therapy as a result of additive or synergistic effects of simultaneously applied therapies. Different drug combinations, such as a cocktail of antisense oligonucleotides or multipotent miRNA sponges directed at several oncogenic microRNAs belonging to the same/different miRNA families, a mixture of anti-miRNA oligonucleotides and cytostatic drugs, and a combination of synthetic miRNA mimics, have a more complex and profound effect on the various events of tumorigenesis as compared with treatment with a single miRNA-based agent or chemotherapeutic drug. These data provide strong evidence that the simultaneous application of several distinct strategies aimed at suppressing different cellular processes linked to tumorigenesis is a promising approach for cancer therapy.
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Affiliation(s)
- Svetlana Miroshnichenko
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Olga Patutina
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
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miR-106b-5p and miR-17-5p could predict recurrence and progression in breast ductal carcinoma in situ based on the transforming growth factor-beta pathway. Breast Cancer Res Treat 2019; 176:119-130. [PMID: 30989460 PMCID: PMC6548759 DOI: 10.1007/s10549-019-05192-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 03/02/2019] [Indexed: 12/12/2022]
Abstract
PURPOSE Ductal carcinoma in situ (DCIS) is well-known precursor of invasive ductal carcinoma (IDC). Parts of patients show recurrence as DCIS or IDC after local treatment, but there are no established markers predicting relapse. We analyzed changes in miRNA and oncogene expression during DCIS progression/evolution to identify potential markers predicting recurrence. METHODS Forty archival tissues diagnosed as primary or recurrent DCIS and DCIS adjacent to IDC were analyzed. MiRNA hierarchical clustering showed up-regulation of miR-17-5p and miR-106b-5p in recurrent DCIS and DCIS adjacent to IDC. Target genes were predicted based on pre-formed miRNA databases and PanCancer Pathway panel. MiRNAs were transfected into MCF-10A and MCF-7 cells; western blot analysis was performed with MCF-7 cell line to evaluate the effects on TGF-β downstream pathway. RESULTS miRNA hierarchical clustering showed 17 dysregulated miRNAs, including miR-17-5p and miR-106b-5p. Based on miRNA database and nCounter Pancancer pathway analysis, TGFβRII was selected as target of miR-106b-5p and miR-17-5p. MiR-106b-5p- and miR-17-5p-transfected MCF-7 cells showed decreased expression of TGFβRII, especially in cells transfected with both miRNAs. CONCLUSION miR-106b-5p and miR-17-5p might have a role in breast cancer recurrence and progression by suppressing TGF-β activity, leading to early breast cancer carcinogenesis.
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Liu J, Huang Y, Wang H, Wu D. MiR-106a-5p promotes 5-FU resistance and the metastasis of colorectal cancer by targeting TGFβR2. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:5622-5634. [PMID: 31949649 PMCID: PMC6963073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 10/26/2018] [Indexed: 06/10/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is the third leading cause of cancer-related deaths. 5-Fluorouracil (5-FU)-based chemotherapy has always been the first-line treatment. However, development of 5-FU resistance seriously affects its curative effect. The aim of this study was to elucidate the molecular mechanisms of 5-FU resistance through miR-106a-5p in CRC. METHODS Colorectal cancer tissues were collected to analyze miR-106a-5p and TGFβR2 expressions by qPCR. Functional experiments for evaluating cell survival and metastasis were conducted to observe the biological effects of miR-106a-5p and TGFβR2. The cell survival rate was calculated using an MTT assay; the metastasis was confirmed with a Transwell invasion assay and Western blotting, which we used to measure the expression levels of the epithelial-mesenchymal transition (EMT) markers E-cadherin and vimentin. The combination of miR-106a to TGFβR2 was predicted using Targetscan, and confirmed through the construction of the luciferase reporter plasmid pGL3-basic. The interplay between miR-106a-5p and TGFβR2 was tested with qPCR and Western blotting. A Spearman rank analysis was employed to verify the correlation of miR-106a-5p and TGFβR2 expressions. RESULTS MiR-106a-5p was up-regulated and TGFβR2 was down-regulated in 5-FU resistant CRC tissues and HT-29 cells. MiR-106a-5p promoted cell survival and suppressed the apoptosis rate and caspase 3 activity. Additionally, cell invasion was promoted by miR-106a-5p overexpression in the HT-29 cells and was inhibited by miR-106a-5p knockdown in the 5-FU resistant HT-29 cells; miR-106a-5p overexpression contributed to migration by increasing vimentin expression and by decreasing E-cadherin expression in the HT-29 cells; miR-106a-5p functioned by directly binding to TGFβR2. The TGFβR2 knockdown conferred chemoresistance of 5-FU and metastasis in 5-FU resistant HT-29 cells, and TGFβR2 overexpression reduced cell survival, invasion numbers, vimentin expression, and increased the cell apoptosis rate and caspase 3 activity in 5-FU resistant HT-29 cells. Also, miR-106a-5p negatively regulated TGFβR2 in a linear correlation way in the CRC tissues. CONCLUSION The up-regulation of miR-106a-5p contributes to the pathomechanism of colorectal cancer by promoting 5-FU resistance and metastasis via inhibiting target TGFβR2. Our findings provide new promising ways for the clinical application of the TGFβR2-miR-106a axis in clinical chemotherapy for 5-FU resistant colorectal cancer.
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Affiliation(s)
- Jian Liu
- Department of General Surgery, The Second Affiliated Hospital of Zhejiang Chinese Medical University (Xinhua Hospital of Zhejiang Province)Hangzhou, China
| | - Yanqin Huang
- Cancer Institute, Second Affiliated Hospital, College of Medicine, Zhejiang UniversityHangzhou, China
| | - Hongqian Wang
- Department of General Surgery, The Second Affiliated Hospital of Zhejiang Chinese Medical University (Xinhua Hospital of Zhejiang Province)Hangzhou, China
| | - Denghai Wu
- Department of General Surgery, The Second Affiliated Hospital of Zhejiang Chinese Medical University (Xinhua Hospital of Zhejiang Province)Hangzhou, China
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Sanchez-Mejias A, Kwon J, Chew XH, Siemens A, Sohn HS, Jing G, Zhang B, Yang H, Tay Y. A novel SOCS5/miR-18/miR-25 axis promotes tumorigenesis in liver cancer. Int J Cancer 2018; 144:311-321. [DOI: 10.1002/ijc.31857] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 07/14/2018] [Accepted: 08/15/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Avencia Sanchez-Mejias
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
| | - Junsu Kwon
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
| | - Xiao Hong Chew
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
| | - Angela Siemens
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
| | - Hye Seon Sohn
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
| | - Guo Jing
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
| | - Bin Zhang
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
| | - Henry Yang
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
| | - Yvonne Tay
- Cancer Science Institute of Singapore, Centre for Translational Medicine; National University of Singapore; Singapore 117599 Singapore
- Department of Biochemistry; Yong Loo Lin School of Medicine, National University of Singapore; Singapore 117597 Singapore
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Cui XW, Qian ZL, Li C, Cui SC. Identification of miRNA and mRNA expression profiles by PCR microarray in hepatitis B virus‑associated hepatocellular carcinoma. Mol Med Rep 2018; 18:5123-5132. [PMID: 30272372 DOI: 10.3892/mmr.2018.9516] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 08/23/2018] [Indexed: 02/07/2023] Open
Abstract
The present study aimed to identify differentially expressed microRNAs (miRNAs) and mRNAs in hepatitis B virus‑associated hepatocellular carcinoma (HCC). A total of five HCC tissues and paired adjacent non‑tumor tissues were screened to identify the differentially expressed miRNAs and target mRNAs using polymerase chain reaction microarrays. The interaction between differential miRNA and mRNA expression was concurrently analyzed using bioinformatics methods. A total of 32 differentially expressed miRNAs (four upregulated miRNAs and 28 downregulated miRNAs) and 16 differentially expressed mRNAs (11 upregulated mRNAs and five downregulated mRNAs) were identified. Among these, upregulated hsa‑miRNA (miR)‑96‑5p and hsa‑miR‑18b‑5p suppressed their target mRNAs forkhead box O1 and MET transcriptional regulator MACC1 (MACC1). Downregulation of hsa‑miR‑199a‑5p led to upregulation of its target mRNAs, cyclin dependent kinase 4 and insulin like growth factor 2 (IGF2). The high‑level expression of IGF2 mRNA and cyclin E1 mRNA was due to the low‑level expression of hsa‑miR‑145‑5p, hsa‑miR‑181a‑5p, hsa‑miR‑199a‑5p and hsa‑miR‑223a‑3p, and hsa‑miR‑26a‑5p and hsa‑miR‑26b‑5p, respectively. The low‑level expression of coronin 1A mRNA and MACC1 mRNA was due to overexpression of hsa‑miR‑517a‑3p and hsa‑miR‑18a‑5p, and hsa‑miR‑18b‑5p, respectively. Numerous gene ontology terms were associated with oncogenesis. The most enriched pathways targeted by the dysregulated miRNAs and mRNAs were associated with cancer and oncogenesis pathways. The present data suggested that differential miRNA and mRNA expression is present in HCC. Thus, interactions between certain miRNAs and mRNAs may be involved in the pathogenesis of HCC.
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Affiliation(s)
- Xiong-Wei Cui
- Interventional Center for Oncology, Beijing Youan Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Zhi-Ling Qian
- Interventional Center for Oncology, Beijing Youan Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Cong Li
- Interventional Center for Oncology, Beijing Youan Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Shi-Chang Cui
- Interventional Center for Oncology, Beijing Youan Hospital, Capital Medical University, Beijing 100069, P.R. China
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Muñoz-Llanos M, García-Pérez MA, Xu X, Tejos-Bravo M, Vidal EA, Moyano TC, Gutiérrez RA, Aguayo FI, Pacheco A, García-Rojo G, Aliaga E, Rojas PS, Cidlowski JA, Fiedler JL. MicroRNA Profiling and Bioinformatics Target Analysis in Dorsal Hippocampus of Chronically Stressed Rats: Relevance to Depression Pathophysiology. Front Mol Neurosci 2018; 11:251. [PMID: 30127715 PMCID: PMC6088391 DOI: 10.3389/fnmol.2018.00251] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 07/03/2018] [Indexed: 12/21/2022] Open
Abstract
Studies conducted in rodents subjected to chronic stress and some observations in humans after psychosocial stress, have allowed to establish a link between stress and the susceptibility to many complex diseases, including mood disorders. The studies in rodents have revealed that chronic exposure to stress negatively affects synaptic plasticity by triggering changes in the production of trophic factors, subunit levels of glutamate ionotropic receptors, neuron morphology, and neurogenesis in the adult hippocampus. These modifications may account for the impairment in learning and memory processes observed in chronically stressed animals. It is plausible then, that stress modifies the interplay between signal transduction cascades and gene expression regulation in the hippocampus, therefore leading to altered neuroplasticity and functioning of neural circuits. Considering that miRNAs play an important role in post-transcriptional-regulation of gene expression and participate in several hippocampus-dependent functions; we evaluated the consequences of chronic stress on the expression of miRNAs in dorsal (anterior) portion of the hippocampus, which participates in memory formation in rodents. Here, we show that male rats exposed to daily restraint stress (2.5 h/day) during 7 and 14 days display a differential profile of miRNA levels in dorsal hippocampus and remarkably, we found that some of these miRNAs belong to the miR-379-410 cluster. We confirmed a rise in miR-92a and miR-485 levels after 14 days of stress by qPCR, an effect that was not mimicked by chronic administration of corticosterone (14 days). Our in silico study identified the top-10 biological functions influenced by miR-92a, nine of which were shared with miR-485: Nervous system development and function, Tissue development, Behavior, Embryonic development, Organ development, Organismal development, Organismal survival, Tissue morphology, and Organ morphology. Furthermore, our in silico study provided a landscape of potential miRNA-92a and miR-485 targets, along with relevant canonical pathways related to axonal guidance signaling and cAMP signaling, which may influence the functioning of several neuroplastic substrates in dorsal hippocampus. Additionally, the combined effect of miR-92a and miR-485 on transcription factors, along with histone-modifying enzymes, may have a functional relevance by producing changes in gene regulatory networks that modify the neuroplastic capacity of the adult dorsal hippocampus under stress.
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Affiliation(s)
- Mauricio Muñoz-Llanos
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de Chile, Santiago, Chile
| | - María A García-Pérez
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de Chile, Santiago, Chile
| | - Xiaojiang Xu
- National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Durham, NC, United States
| | - Macarena Tejos-Bravo
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de Chile, Santiago, Chile
| | - Elena A Vidal
- Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.,Millennium Institute for Integrative Biology (iBio), FONDAP Center for Genome Regulation, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Tomás C Moyano
- Millennium Institute for Integrative Biology (iBio), FONDAP Center for Genome Regulation, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Rodrigo A Gutiérrez
- Millennium Institute for Integrative Biology (iBio), FONDAP Center for Genome Regulation, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Felipe I Aguayo
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de Chile, Santiago, Chile
| | - Aníbal Pacheco
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de Chile, Santiago, Chile
| | - Gonzalo García-Rojo
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de Chile, Santiago, Chile
| | - Esteban Aliaga
- Department of Kinesiology, Faculty of Health Sciences, Universidad Católica del Maule, Talca, Chile
| | - Paulina S Rojas
- Escuela de Química y Farmacia, Facultad de Medicina, Universidad Andres Bello, Santiago, Chile
| | - John A Cidlowski
- National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Durham, NC, United States
| | - Jenny L Fiedler
- Laboratory of Neuroplasticity and Neurogenetics, Faculty of Chemical and Pharmaceutical Sciences, Department of Biochemistry and Molecular Biology, Universidad de Chile, Santiago, Chile
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MiR-92a Inhibits the Progress of Osteosarcoma Cells and Increases the Cisplatin Sensitivity by Targeting Notch1. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9870693. [PMID: 29984257 PMCID: PMC6011149 DOI: 10.1155/2018/9870693] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 02/20/2018] [Indexed: 12/17/2022]
Abstract
Background MicroRNAs (miRs) have been implicated in the development and progression of osteosarcoma. Here, we aimed to illustrate the important role of miR-92a on the regulation of OS development which may help to establish a novel strategy for OS diagnosis and treatment. Materials and Methods Cell viability was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Cell cycle and apoptosis were assessed by flow cytometry with PI and PI/Annexin-V stain, respectively. The expression of proteins was examined by western blot. qPCR was used to detect the expression of RNA. Cell migration was assayed with transwell assay. Results MiR-92a inhibited the proliferation and the migration of OS in vitro and reduced the volume of the tumour in vivo. Further, miR-92a enhanced cisplatin sensitivity of OS. MiR-92a directly targeted Notch1. Conclusion Together, our results indicate that miR-92a inhibited cell growth, migration, and enhanced cisplatin sensitivity of OS cell by targeting Notch1.
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Cătană CS, Pichler M, Giannelli G, Mader RM, Berindan-Neagoe I. Non-coding RNAs, the Trojan horse in two-way communication between tumor and stroma in colorectal and hepatocellular carcinoma. Oncotarget 2018; 8:29519-29534. [PMID: 28392501 PMCID: PMC5438748 DOI: 10.18632/oncotarget.15706] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/24/2017] [Indexed: 12/29/2022] Open
Abstract
In a continuous and mutual exchange of information, cancer cells are invariably exposed to microenvironment transformation. This continuous alteration of the genetic, molecular and cellular peritumoral stroma background has become as critical as the management of primary tumor progression events in cancer cells. The communication between stroma and tumor cells within the extracellular matrix is one of the triggers in colon and liver carcinogenesis. All non- codingRNAs including long non-coding RNAs, microRNAs and ultraconserved genes play a critical role in almost all cancers and are responsible for the modulation of the tumor microenvironment in several malignant processes such as initiation, progression and dissemination. This review details the involvement of non codingRNAs in the evolution of human colorectal carcinoma and hepatocellular carcinoma in relationship with the microenvironment. Recent research has shown that a considerable number of dysregulated non- codingRNAs could be valuable diagnostic and prognostic biomarkers in cancer. Therefore, more in-depth knowledge of the role non- codingRNAs play in stroma-tumor communication and of the complex regulatory mechanisms between ultraconserved genes and microRNAs supports the validation of future effective therapeutic targets in patients suffering from hepatocellular and colorectal carcinoma, two distinctive entities which share quite a lot common non-coding RNAs.
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Affiliation(s)
- Cristina- Sorina Cătană
- Department of Medical Biochemistry, ""Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Martin Pichler
- Department of Internal Medicine, Division of Oncology, Medical University of Graz, Graz, Austria
| | - Gianluigi Giannelli
- Department of Internal Medicine, Immunology and Infectious Diseases, Section of Internal Medicine, University of Bari Medical School, Bari, Italy
| | - Robert M Mader
- Department of Medicine I, Comprehensive Cancer Center of the Medical University of Vienna, Austria
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Institute of Doctoral Studies, ""Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Department of Experimental Pathology, "Ion Chiricuta" Institute of Oncology, Cluj-Napoca, Romania.,Medfuture Research Center for Advanced Medicine, Cluj-Napoca, Romania
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Gruszka R, Zakrzewska M. The Oncogenic Relevance of miR-17-92 Cluster and Its Paralogous miR-106b-25 and miR-106a-363 Clusters in Brain Tumors. Int J Mol Sci 2018; 19:ijms19030879. [PMID: 29547527 PMCID: PMC5877740 DOI: 10.3390/ijms19030879] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 12/25/2022] Open
Abstract
The fundamental function of ribonucleic acids is to transfer genetic information from DNA to protein during translation process, however, this is not the only way connecting active RNA sequences with essential biological processes. Up until now, many RNA subclasses of different size, structure, and biological function were identified. Among them, there are non-coding single-stranded microRNAs (miRNAs). This subclass comprises RNAs of 19–25 nucleotides in length that modulate the activity of well-defined coding RNAs and play a crucial role in many physiological and pathological processes. miRNA genes are located both in exons, introns, and also within non-translated regions. Several miRNAs that are transcribed from the adjacent miRNA genes are called cluster. One of the largest ones is miR-17-92 cluster known as OncomiR-1 due to its strong link to oncogenesis. Six miRNAs from the OncomiR-1 have been shown to play important roles in various physiological cellular processes but also through inhibition of cell death in many cancer-relevant processes. Due to the origin and similarity of the sequence, miR-17-92 cluster and paralogs, miR-106b-25 and miR-106a-363 clusters were defined. Here we discuss the oncogenic function of those miRNA subgroups found in many types of cancers, including brain tumors.
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Affiliation(s)
- Renata Gruszka
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland.
| | - Magdalena Zakrzewska
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland.
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Alzrigat M, Párraga AA, Agarwal P, Zureigat H, Österborg A, Nahi H, Ma A, Jin J, Nilsson K, Öberg F, Kalushkova A, Jernberg-Wiklund H. EZH2 inhibition in multiple myeloma downregulates myeloma associated oncogenes and upregulates microRNAs with potential tumor suppressor functions. Oncotarget 2018; 8:10213-10224. [PMID: 28052011 PMCID: PMC5354653 DOI: 10.18632/oncotarget.14378] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 12/15/2016] [Indexed: 12/21/2022] Open
Abstract
Multiple Myeloma (MM) is a plasma cell tumor localized to the bone marrow (BM). Despite the fact that current treatment strategies have improved patients' median survival time, MM remains incurable. Epigenetic aberrations are emerging as important players in tumorigenesis making them attractive targets for therapy in cancer including MM. Recently, we suggested the polycomb repressive complex 2 (PRC2) as a common denominator of gene silencing in MM and presented the PRC2 enzymatic subunit enhancer of zeste homolog 2 (EZH2) as a potential therapeutic target in MM. Here we further dissect the anti-myeloma mechanisms mediated by EZH2 inhibition and show that pharmacological inhibition of EZH2 reduces the expression of MM-associated oncogenes; IRF-4, XBP-1, PRDM1/BLIMP-1 and c-MYC. We show that EZH2 inhibition reactivates the expression of microRNAs with tumor suppressor functions predicted to target MM-associated oncogenes; primarily miR-125a-3p and miR-320c. ChIP analysis reveals that miR-125a-3p and miR-320c are targets of EZH2 and H3K27me3 in MM cell lines and primary cells. Our results further highlight that polycomb-mediated silencing in MM includes microRNAs with tumor suppressor activity. This novel role strengthens the oncogenic features of EZH2 and its potential as a therapeutic target in MM.
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Affiliation(s)
- Mohammad Alzrigat
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Alba Atienza Párraga
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Prasoon Agarwal
- Department of Laboratory Medicine, Division of Clinical Immunology, Karolinska University Hospital, Huddinge, Stockholm, Sweden
| | - Hadil Zureigat
- Department of Medicine, Faculty of Medicine, University of Jordan, Amman, Jordan
| | - Anders Österborg
- Department of Oncology-Pathology, Karolinska University Hospital, Solna, Stockholm, Sweden
| | - Hareth Nahi
- Department of Medicine, Unit of Hematology, Karolinska University Hospital, Huddinge, Stockholm, Sweden
| | - Anqi Ma
- Department of Pharmacological Sciences and Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jian Jin
- Department of Pharmacological Sciences and Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kenneth Nilsson
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Fredrik Öberg
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Antonia Kalushkova
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Helena Jernberg-Wiklund
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
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Expression of VHL tumor suppressor mRNA and miR-92a in papillary thyroid carcinoma and their correlation with clinical and pathological parameters. Med Oncol 2018; 35:17. [PMID: 29340905 DOI: 10.1007/s12032-017-1066-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 11/30/2017] [Indexed: 01/20/2023]
Abstract
A growing body of evidence suggests a role of the von Hippel-Lindau (VHL) tumor suppressor gene in the progression of papillary thyroid carcinoma (PTC). Our previous study of VHL in PTCs showed that lower VHL expression was associated with aggressive tumor features, but we found no evidence for VHL downregulation through common genetic or epigenetic modifications. Several studies pointed to a role of microRNA-92a (miR-92a) in the regulation of VHL expression in different cancers. In the present study, we examined the expression levels of VHL mRNA and miR-92a in 42 pairs of PTCs and matched non-tumor thyroid tissues by means of quantitative RT-PCR. We explored the correlation between them and their association with clinicopathological parameters. The results revealed that both VHL and miR-92a were either up- or downregulated in PTCs compared to corresponding non-tumor tissues. On univariate analysis, lower VHL levels were significantly associated with extrathyroid spread (P = 0.022) and capsular invasion (P = 0.032). Multivariate analysis confirmed the association of low VHL with extrathyroid spread (OR 0.246, 95% CI 0.069-0.872, P = 0.038). Higher miR-92a among PTC tissues associated with the presence of nodal metastases (univariate analysis: P = 0.012; multivariate: OR 4.703, 95% CI 1.109-19.938, P = 0.036). A negative correlation between VHL and miR-92a was observed in a subgroup of PTCs having vascular invasion (P = 0.033, r = - 0.673). The data here reported demonstrate that the expression of both VHL and miR-92a is deregulated in PTC tissues and that in some PTCs they may have opposite roles. These roles, as well as their diagnostic and/or prognostic utility, remain to be clarified.
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Caratozzolo MF, Marzano F, Mastropasqua F, Sbisà E, Tullo A. TRIM8: Making the Right Decision between the Oncogene and Tumour Suppressor Role. Genes (Basel) 2017; 8:genes8120354. [PMID: 29182544 PMCID: PMC5748672 DOI: 10.3390/genes8120354] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/20/2017] [Accepted: 11/23/2017] [Indexed: 12/27/2022] Open
Abstract
The TRIM8/GERP protein is a member of the TRIM family defined by the presence of a common domain structure composed of a tripartite motif including a RING-finger, one or two B-box domains, and a coiled-coil motif. The TRIM8 gene maps on chromosome 10 within a region frequently found deleted and rearranged in tumours and transcribes a 3.0-kB mRNA. Its expression is mostly ubiquitously in murine and human tissues, and in epithelial and lymphoid cells, it can be induced by IFNγ. The protein spans 551 aa and is highly conserved during evolution. TRIM8 plays divergent roles in many biological processes, including important functions in inflammation and cancer through regulating various signalling pathways. In regulating cell growth, TRIM8 exerts either a tumour suppressor action, playing a prominent role in regulating p53 tumour suppressor activity, or an oncogene function, through the positive regulation of the NF-κB pathway. The molecular mechanisms underlying this dual role in human cancer will be discussed in depth in this review, and it will highlight the challenge and importance of developing novel therapeutic strategies specifically aimed at blocking the pro-oncogenic arm of the TRIM8 signalling pathway without affecting its tumour suppressive effects.
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Affiliation(s)
- Mariano Francesco Caratozzolo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM-CNR, Via G. Amendola, 165/A-70126 Bari, Italy.
| | - Flaviana Marzano
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM-CNR, Via G. Amendola, 165/A-70126 Bari, Italy.
| | - Francesca Mastropasqua
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM-CNR, Via G. Amendola, 165/A-70126 Bari, Italy.
| | - Elisabetta Sbisà
- Institute for Biomedical Technologies ITB, CNR-Bari, Via G. Amendola, 122/D-70126 Bari, Italy.
| | - Apollonia Tullo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM-CNR, Via G. Amendola, 165/A-70126 Bari, Italy.
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Involvement of inflammation and its related microRNAs in hepatocellular carcinoma. Oncotarget 2017; 8:22145-22165. [PMID: 27888618 PMCID: PMC5400654 DOI: 10.18632/oncotarget.13530] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 11/02/2016] [Indexed: 12/12/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the fifth most commonly diagnosed type of cancer. The tumor inflammatory microenvironment regulates almost every step towards liver tumorigenesis and subsequent progression, and regulation of the inflammation-related signaling pathways, cytokines, chemokines and non-coding RNAs influences the proliferation, migration and metastasis of liver tumor cells. Inflammation fine-tunes the cancer microenvironment to favor epithelial-mesenchymal transition, in which cancer stem cells maintain tumorigenic potential. Emerging evidence points to inflammation-related microRNAs as crucial molecules to integrate the complex cellular and molecular crosstalk during HCC progression. Thus understanding the mechanisms by which inflammation regulates microRNAs might provide novel and admissible strategies for preventing, diagnosing and treating HCC. In this review, we will update three hypotheses of hepatocarcinogenesis and elaborate the most predominant inflammation signaling pathways, i.e. IL-6/STAT3 and NF-κB. We also try to summarize the crucial tumor-promoting and tumor-suppressing microRNAs and detail how they regulate HCC initiation and progression and collaborate with other critical modulators in this review.
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Lv M, Chen H, Shao Y, Li C, Zhang W, Zhao X, Jin C, Xiong J. miR-92a regulates coelomocytes apoptosis in sea cucumber Apostichopus japonicus via targeting Aj14-3-3ζ in vivo. FISH & SHELLFISH IMMUNOLOGY 2017; 69:211-217. [PMID: 28860073 DOI: 10.1016/j.fsi.2017.08.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/21/2017] [Accepted: 08/27/2017] [Indexed: 06/07/2023]
Abstract
miR-92a, a well-documented oncogene, was previously found to be differentially expressed in diseased sea cucumber Apostichopus japonicus by high-throughput sequencing. In this study, we identified Aj14-3-3ζ as a novel target of miR-92a in this species and investigated their regulatory roles in vivo. The negative expression profiles between miR-92a and Aj14-3-3ζ protein were detected in both LPS-exposed primary coelomocytes and Vibrio splendidus-challenged sea cucumbers. Over-expression of miR-92a by injection of miR-92a agomir significantly depressed the mRNA and protein expression of Aj14-3-3ζ and promoted coelomocytes apoptosis with 5.04-fold increase in vivo, which was consistent with those from siRNA-mediated Aj14-3-3ζ knockdown assay. In contrast, miR-92a antagomir significantly elevated the mRNA and protein expression of Aj14-3-3ζ and decreased coelomocytes apoptosis. Taken together, our result confirmed that miR-92a is involved in apoptotic signaling pathway regulation perhaps via targeting Aj14-3-3ζ in sea cucumbers, which will enhance our understanding of miR-92a regulatory roles in sea cucumber pathogenesis.
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Affiliation(s)
- Miao Lv
- School of Marine Sciences, Ningbo University, PR China
| | - Huahui Chen
- School of Marine Sciences, Ningbo University, PR China
| | - Yina Shao
- School of Marine Sciences, Ningbo University, PR China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, PR China.
| | - Weiwei Zhang
- School of Marine Sciences, Ningbo University, PR China
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University, PR China
| | - Chunhua Jin
- School of Marine Sciences, Ningbo University, PR China
| | - Jinbo Xiong
- School of Marine Sciences, Ningbo University, PR China
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Co-regulation of microRNAs and transcription factors in cardiomyocyte specific differentiation of murine embryonic stem cells: An aspect from transcriptome analysis. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2017; 1860:983-1001. [DOI: 10.1016/j.bbagrm.2017.07.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 07/17/2017] [Accepted: 07/30/2017] [Indexed: 12/21/2022]
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Hu H, Li H, He Y. MicroRNA-17 downregulates expression of the PTEN gene to promote the occurrence and development of adenomyosis. Exp Ther Med 2017; 14:3805-3811. [PMID: 29042983 DOI: 10.3892/etm.2017.5013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 03/10/2017] [Indexed: 12/15/2022] Open
Abstract
The aim of the current study was to evaluate the expression of microRNA (miR)-17 in the endometrial tissues of patients with adenomyosis (AM) and determine its biological function in the occurrence and development of the disease. A total of 45 fresh endometrial tissues of AM patients and 32 normal endometrial tissues were collected from healthy controls. The expression of miR-17 was evaluated using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The miR-17-targeting gene phosphatase and tensin homolog (PTEN) was predicted using bioinformatics and its expression was evaluated with RT-qPCR and western blot analysis. Endometrial cells were isolated from patients with AM and healthy controls. They were cultured in vitro and transfected with antagomiR-17 to downregulate miR-17 expression, subsequently cell viability and apoptosis were measured using MTT and flow cytometry. The expression of PTEN and cell cycle- and apoptosis-related proteins were evaluated using western blot analysis. Endometrial cells that stably overexpressed PTEN were screened in vitro by co-culture with G418. A dual-luciferase reporter assay was conducted to verify whether miR-17 was directly bound to PTEN mRNA. The results demonstrated that expression of miR-17 was significantly increased in the endometrial tissues of patients with AM compared with control patients (P<0.05). PTEN mRNA and protein expression were significantly lower in the AM group compared with the control group (P<0.05). When the expression of miR-17 in the cells was downregulated, the expression of PTEN was significantly increased (P<0.05). In addition, expression of Bcl-2 protein was significantly decreased and that of Bax protein significantly increased compared with the negative control (both P<0.05). The expression of cyclins E1 and D1 were also significantly downregulated (P<0.05). When PTEN was overexpressed or miR-17 was downregulated, the viability of endometrial cells significantly decreased and cell apoptosis significantly increased (all P<0.05). A dual-luciferase reporter assay indicated that miR-17 could directly bind to the PTEN mRNA 3'-untranslated region to regulate its expression. Thus the current study indicates that expression of miR-17 was increased in the endometrial tissues of patients with AM and may influence cell apoptosis and cyclin expression through the targeted regulation of PTEN. These results suggest that miR-17 promotes the occurrence and development of AM.
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Affiliation(s)
- Haiyan Hu
- Department of Obstetrics and Gynecology, Shenzhen Meternal and Child Healthcare Hospital, Southern Medical University, Guangzhou, Guangdong 518028, P.R. China
| | - Huijuan Li
- Department of Obstetrics and Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
| | - Yuanli He
- Department of Obstetrics and Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
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Abstract
MicroRNAs (miRNAs or miRs) are small 19-22 nucleotide long, noncoding, single-stranded, and multifunctional RNAs that regulate a diverse assortment of gene and protein functions that impact on a vast network of pathways. Lin-4, a noncoding transcript discovered in 1993 and named miRNA, initiated the exploration of research into these intriguing molecules identified in almost all organisms. miRNAs interfere with translation or posttranscriptional regulation of their target gene and regulate multiple biological actions exerted by these target genes. In cancer, they function as both oncogenes and tumor suppressor genes displaying differential activity in various cellular contexts. Although the role of miRNAs on target gene functions has been extensively investigated, less is currently known about the upstream regulatory molecules that regulate miRNAs. This chapter focuses on the factors and processes involved in miRNA regulation.
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Affiliation(s)
- Anjan K Pradhan
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Luni Emdad
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Swadesh K Das
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Devanand Sarkar
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Paul B Fisher
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States.
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Yüksel Ş, Boylu Akyerli C, Cengiz Yakıcıer M. Angiogenesis, Invasion, and Metastasis Characteristics of Hepatocellular Carcinoma. J Gastrointest Cancer 2017; 48:256-259. [PMID: 28785955 DOI: 10.1007/s12029-017-9962-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Şirin Yüksel
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - Cemaliye Boylu Akyerli
- Department of Medical Biology, School of Medicine, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - M Cengiz Yakıcıer
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey.
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48
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de Conti A, Ortega JF, Tryndyak V, Dreval K, Moreno FS, Rusyn I, Beland FA, Pogribny IP. MicroRNA deregulation in nonalcoholic steatohepatitis-associated liver carcinogenesis. Oncotarget 2017; 8:88517-88528. [PMID: 29179453 PMCID: PMC5687623 DOI: 10.18632/oncotarget.19774] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/06/2017] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the fastest-rising cause of cancer-related death in the United States. Recent epidemiological studies have identified nonalcoholic steatohepatitis (NASH), a progressive form of nonalcoholic fatty liver disease (NAFLD), as a major risk factor for HCC. Elucidating the underlying mechanisms associated with the development of NASH-derived HCC is critical for identifying early biomarkers for the progression of the disease and for treatment and prevention. In the present study, using liver samples from C57BL/6J mice submitted to the Stelic Animal Model (STAM) of NASH-associated liver carcinogenesis, we investigated the role of microRNA (miRNA) alterations in the pathogenesis of NASH-derived HCC. We found substantial alterations in the expression of miRNAs, with the greatest number occurring in full-fledged HCC. Mechanistically, altered miRNA expression was associated with activation of major hepatocarcinogenesis-related pathways, including the TGF-β, Wnt/β-catenin, ERK1/2, mTOR, and EGF signaling. In addition, the over-expression of the miR-221-3p and miR-222-3p and oncogenic miR-106b∼25 cluster was accompanied by the reduced protein levels of their targets, including E2F transcription factor 1 (E2F1), phosphatase and tensin homolog (PTEN), and cyclin-dependent kinase inhibitor 1 (CDKN1A). Importantly, miR-93-5p, miR-221-3p, and miR-222-3p were also significantly over-expressed in human HCC. These findings suggest that aberrant expression of miRNAs may have mechanistic significance in NASH-associated liver carcinogenesis and may serve as an indicator for the development of NASH-derived HCC.
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Affiliation(s)
- Aline de Conti
- Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, Arkansas, USA
| | - Juliana Festa Ortega
- Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, Arkansas, USA.,Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Volodymyr Tryndyak
- Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, Arkansas, USA
| | - Kostiantyn Dreval
- Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, Arkansas, USA
| | - Fernando Salvador Moreno
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ivan Rusyn
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, Texas, USA
| | - Frederick A Beland
- Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, Arkansas, USA
| | - Igor P Pogribny
- Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, Arkansas, USA
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Shi BM, Lu W, Ji K, Wang YF, Xiao S, Wang XY. Study on the value of serum miR-106b for the early diagnosis of hepatocellular carcinoma. World J Gastroenterol 2017; 23:3713-3720. [PMID: 28611524 PMCID: PMC5449428 DOI: 10.3748/wjg.v23.i20.3713] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 03/07/2017] [Accepted: 03/21/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To analyze the incidence of hepatocellular carcinoma (HCC) in a population that underwent health checkups and had high serum miR-106b levels.
METHODS A total of 335 subjects who underwent checkups in the Digestive and Liver Disease Department of our hospital were randomly selected. RT-PCR was used to detect the level of miR-106b in serum samples. Laboratory and imaging examinations were carried out to confirm the HCC diagnosis in patients who had a > 2-fold change in miR-106b levels. Ultrasound-guided biopsy was also used for HCC diagnosis when necessary. On this basis, the clinical data of these subjects, including history of hepatitis virus infection, obesity, long-term history of alcohol use and stage of HCC, were collected. Then, the impact of these factors on the level of miR-106b in serum was analyzed. Furthermore, receiver operating characteristic (ROC) curve was drawn to evaluate the diagnostic efficacy of miR-106b for HCC.
RESULTS A total of 35 subjects had abnormal serum miR-106b levels, of which 20 subjects were diagnosed with HCC. t-test revealed that the difference in serum miR-106b level in terms of sex, age, history of hepatitis virus infection, obesity and long-term history of alcohol use was not statistically significant. However, serum miR-106b levels in patients with advanced HCC (stage III/IV) was higher than in patients with early HCC (stage I/II), and the difference was statistically significant (P = 0.000). Moreover, the ROC curve revealed that the area under the curve value for miR-106b was 0.885, which shows that serum miR-106b level has a certain clinical value for HCC diagnosis.
CONCLUSION The random sampling survey shows that serum miR-106b level is a valuable diagnostic marker for HCC. However, the diagnostic threshold value needs to be further researched.
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A MicroRNA/Ubiquitin Ligase Feedback Loop Regulates Slug-Mediated Invasion in Breast Cancer. Neoplasia 2017; 19:483-495. [PMID: 28500896 PMCID: PMC5429244 DOI: 10.1016/j.neo.2017.02.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 02/23/2017] [Accepted: 02/28/2017] [Indexed: 12/22/2022] Open
Abstract
The transformation of a normal cell to cancer requires the derail of multiple pathways. Normal signaling in a cell is regulated at multiple stages by the presence of feedback loops, calibration of levels of proteins by their regulated turnover, and posttranscriptional regulation, to name a few. The tumor suppressor protein FBXO31 is a component of the SCF E3 ubiquitin ligase and is required to arrest cells at G1 following genotoxic stresses. Due to its growth-suppression activity, it is underexpressed in many cancers. However, the molecular mechanism underlying the translational regulation of FBXO31 remains unclear. Here we show that the oncogenic microRNAs miR-93 and miR-106a repress FBXO31, resulting in the upregulation of Slug, which is involved in epithelial-mesenchymal transition and cell invasion. FBXO31 targets and ubiquitylates Slug for proteasomal degradation. However, this mechanism is repressed in breast tumors where miR-93 and miR-106a are overexpressed. Our study further unravels an interesting mechanism whereby Slug drives the expression of miR-93 and miR-106a, thus establishing a positive feedback loop to maintain an invasive phenotype. Together, these results establish the presence of interplay between microRNAs and the ubiquitination machinery, which together regulate cancer cell invasion.
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