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Shuaib M, Kumar S. Ectopic expression of tumor suppressive miR-181c-5p downregulates oncogenic Notch signaling in MDA-MB-231 cells. Pathol Res Pract 2024; 253:155017. [PMID: 38101160 DOI: 10.1016/j.prp.2023.155017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Triple negative breast cancer (TNBC) is a very invasive subtype of breast cancer (BCa), this is accounted for 15-20% of all BCa cases. TNBC patients have very limited therapy option due to lack of effective targets and patients shows the worse survival. Therefore, present study has tried to introduce the target based therapy by studying the tumor suppressive role of miR-181c-5p on oncogenic Notch1 signaling. Transient transfection, bioinformatics, qRT-PCR, Notch1 luciferase assay and western blotting techniques were utilized to study the effect of induced expression of miR-181c-5p on oncogenic Notch1 signaling in MDA-MB-231 cells. Results shows that miR-181c-5p mimic increase the expression of miR-181c-5p by 45.26% and 75.96% in 24 and 48 h incubation, respectively (p < 0.0003) in transfected cells. The miR-181c-5p binds at NOTCH1 3' UTR target binding site with a minimum free energy of - 26.0 kcal/mol. The AGO protein showed significant interaction with the miR-181c-5p and miR-181c-5p-NOTCH1 complex. Decreased expression of NOTCH1 by 32.88% and 45.87% (p < 0.0001); and HES1 expression by 14.06% and 53.24% (p < 0.0001) was observed in 24 and 48 h transfected cells respectively. Notch1 promoter luciferase activity was reduced by 25.72% and 46.98% in 24 and 48 h miRNA-mimic transfected cells. Western blot analysis also showed significant reduction in NOTCH1 and HES1 proteins expression. In conclusion, present study suggests that the forced expression of tumor suppressive miR-181c-5p negatively regulates oncogenic Notch1 signaling in TNBC. Negative regulation of Notch1 signaling via miR-181c-5p mimic could be a hopeful therapeutic strategy in TNBC patient treatment.
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Affiliation(s)
- Mohd Shuaib
- Molecular Signaling & Drug Discovery Laboratory, Department of Biochemistry, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Shashank Kumar
- Molecular Signaling & Drug Discovery Laboratory, Department of Biochemistry, Central University of Punjab, Bathinda 151401, Punjab, India.
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2
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Kang S, Ou C, Yan A, Zhu K, Xue R, Zhang Y, Lai J. Long Noncoding RNA SNHG5 Induces the NF-κB Pathway by Regulating miR-181c-5p/CBX4 Axis to Promote the Progression of Non-Small Cell Lung Cancer. Arch Bronconeumol 2023; 59:10-18. [PMID: 35963709 DOI: 10.1016/j.arbres.2022.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 06/24/2022] [Accepted: 07/05/2022] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Explorations have been progressing in decoding the mechanism of non-small cell lung cancer (NSCLC). However, long noncoding RNA small nucleolar RNA host gene 5/microRNA-181c-5p/chromobox protein 4 (SNHG5/miR-181c-5p/CBX4) axis-oriented mechanisms in NSCLC is still in infancy. Therein, this study is proposed to probe this axis in NSCLC progression. METHODS Samples of 86 NSCLC patients were collected and SNHG5, miR-181c-5p and CBX4 expression was detected in NSCLC tissues and cells. NSCLC cells were transfected with plasmids to change SNHG5, miR-181c-5p or CBX4 expression, after which cell functions and phosphorylated (p)-nuclear factor (NF)-κB protein expression were evaluated. The relationships among SNHG5, miR-181c-5p and CBX4 were validated. Tumor xenografts were implemented to verify the roles of SNHG5, miR-181c-5p and CBX4 in tumor growth. RESULTS Low miR-181c-5p and high SNHG5 and CBX4 levels were found in NSCLC tissues and cells. Restoration of miR-181c-5p or knockdown of SNHG5 or CBX4 restrained NSCLC cell progression and inactivated the NF-κB pathway. Upregulated CBX4 abolished the effects of miR-181c-5p on reducing NSCLC cell progression. SNHG5 regulated the interaction between miR-181c-5p and CBX4. In vivo, restoration of miR-181c-5p or knockdown of SNHG5 or CBX4 retarded the tumor growth. CONCLUSION This study has delineated that SNHG5 induces the NF-κB pathway by regulating the miR-181c-5p/CBX4 axis to promote NSCLC progression, which may pave a novel path for NSCLC treatment.
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Affiliation(s)
- Shiyang Kang
- Department of Anesthesiology, Sun Yat-sen University Cancer Center, Guangzhou 510000, Guangdong, China
| | - Chaopeng Ou
- Department of Anesthesiology, Sun Yat-sen University Cancer Center, Guangzhou 510000, Guangdong, China
| | - An Yan
- Department of Thoracic Oncology, Harbin Medical University Cancer Hospital, Harbin 150000, Heilongjiang, China
| | - Kaibin Zhu
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin 150000, Heilongjiang, China
| | - Ruifeng Xue
- Department of Anesthesiology, Sun Yat-sen University Cancer Center, Guangzhou 510000, Guangdong, China
| | - Yingjun Zhang
- Department of Anesthesiology, Sun Yat-sen University Cancer Center, Guangzhou 510000, Guangdong, China
| | - Jielan Lai
- Department of Anesthesiology, Sun Yat-sen University Cancer Center, Guangzhou 510000, Guangdong, China.
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Playfoot CJ, Sheppard S, Planet E, Trono D. Transposable elements contribute to the spatiotemporal microRNA landscape in human brain development. RNA (NEW YORK, N.Y.) 2022; 28:1157-1171. [PMID: 35732404 PMCID: PMC9380744 DOI: 10.1261/rna.079100.122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
Transposable elements (TEs) contribute to the evolution of gene regulatory networks and are dynamically expressed throughout human brain development and disease. One gene regulatory mechanism influenced by TEs is the miRNA system of post-transcriptional control. miRNA sequences frequently overlap TE loci and this miRNA expression landscape is crucial for control of gene expression in adult brain and different cellular contexts. Despite this, a thorough investigation of the spatiotemporal expression of TE-embedded miRNAs in human brain development is lacking. Here, we identify a spatiotemporally dynamic TE-embedded miRNA expression landscape between childhood and adolescent stages of human brain development. These miRNAs sometimes arise from two apposed TEs of the same subfamily, such as for L2 or MIR elements, but in the majority of cases stem from solo TEs. They give rise to in silico predicted high-confidence pre-miRNA hairpin structures, likely represent functional miRNAs, and have predicted genic targets associated with neurogenesis. TE-embedded miRNA expression is distinct in the cerebellum when compared to other brain regions, as has previously been described for gene and TE expression. Furthermore, we detect expression of previously nonannotated TE-embedded miRNAs throughout human brain development, suggestive of a previously undetected miRNA control network. Together, as with non-TE-embedded miRNAs, TE-embedded sequences give rise to spatiotemporally dynamic miRNA expression networks, the implications of which for human brain development constitute extensive avenues of future experimental research. To facilitate interactive exploration of these spatiotemporal miRNA expression dynamics, we provide the "Brain miRTExplorer" web application freely accessible for the community.
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Affiliation(s)
- Christopher J Playfoot
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Shaoline Sheppard
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Evarist Planet
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Didier Trono
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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4
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MiR-181c sensitizes ovarian cancer cells to paclitaxel by targeting GRP78 through the PI3K/Akt pathway. Cancer Gene Ther 2022; 29:770-783. [PMID: 34145425 DOI: 10.1038/s41417-021-00356-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/13/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023]
Abstract
Primary cytoreductive surgery with platinum-taxane-based chemotherapy is the standard treatment for ovarian cancer (OC) patients; however, resistance to chemotherapy is a contributing factor to OC mortality. Paclitaxel (PTX), the most widely used taxane, has become the first-line drug against OC. The molecular mechanism of PTX resistance is different from that of platinum-based agents and is still not completely elucidated. Our previous study showed that glucose-regulated protein 78 (GRP78) is involved in the resistance of OC cells to PTX. However, little is known regarding endogenous inhibitors of this gene. MicroRNAs (miRNAs) play critical roles in the regulation of gene expression; therefore, we sought to identify miRNA(s) with potential to target GRP78 under the hypothesis that miRNA(s) could serve as potential therapeutic targets. Here, we show that miR-181c, predicted to target GRP78, was downregulated in PTX-resistant OC cells and tissues. MiR-181c downregulated GRP78 expression and induced apoptosis by directly targeting its 3'-untranslated region (UTR). Overexpression of miR-181c sensitized resistant OC to PTX by inhibiting the PI3K/Akt pathway in vitro and in vivo. Taken together, our findings indicate that the delivery of miR-181c can efficiently suppress GRP78 expression and GRP78-mediated PTX resistance in OC and suggest that this strategy has therapeutic potential.
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Macharia LW, Muriithi W, Heming CP, Nyaga DK, Aran V, Mureithi MW, Ferrer VP, Pane A, Filho PN, Moura-Neto V. The genotypic and phenotypic impact of hypoxia microenvironment on glioblastoma cell lines. BMC Cancer 2021; 21:1248. [PMID: 34798868 PMCID: PMC8605580 DOI: 10.1186/s12885-021-08978-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 11/04/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Glioblastoma is a fatal brain tumour with a poor patient survival outcome. Hypoxia has been shown to reprogram cells towards a stem cell phenotype associated with self-renewal and drug resistance properties. Activation of hypoxia-inducible factors (HIFs) helps in cellular adaptation mechanisms under hypoxia. Similarly, miRNAs are known to be dysregulated in GBM have been shown to act as critical mediators of the hypoxic response and to regulate key processes involved in tumorigenesis. METHODS Glioblastoma (GBM) cells were exposed to oxygen deprivation to mimic a tumour microenvironment and different cell aspects were analysed such as morphological changes and gene expression of miRNAs and survival genes known to be associated with tumorigenesis. RESULTS It was observed that miR-128a-3p, miR-34-5p, miR-181a/b/c, were down-regulated in 6 GBM cell lines while miR-17-5p and miR-221-3p were upregulated when compared to a non-GBM control. When the same GBM cell lines were cultured under hypoxic microenvironment, a further 4-10-fold downregulation was observed for miR-34-5p, miR-128a-3p and 181a/b/c while a 3-6-fold upregulation was observed for miR-221-3p and 17-5p for most of the cells. Furthermore, there was an increased expression of SOX2 and Oct4, GLUT-1, VEGF, Bcl-2 and survivin, which are associated with a stem-like state, increased metabolism, altered angiogenesis and apoptotic escape, respectively. CONCLUSION This study shows that by mimicking a tumour microenvironment, miRNAs are dysregulated, stemness factors are induced and alteration of the survival genes necessary for the cells to adapt to the micro-environmental factors occurs. Collectively, these results might contribute to GBM aggressiveness.
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Affiliation(s)
- Lucy Wanjiku Macharia
- Programa de Pós-Graduação em Anatomia Patológica, Faculdade de Medicina da Universidade Federal do Rio de Janeiro - (PPGAP-UFRJ), Rio de Janeiro, Brazil
- Laboratório de Biomedicina do Cérebro- Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Rio de Janeiro, Brasil. Rua do Rezende, 156 - Centro, Rio de Janeiro, RJ, 20231-092, Brasil
| | - Wanjiru Muriithi
- Laboratório de Biomedicina do Cérebro- Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Rio de Janeiro, Brasil. Rua do Rezende, 156 - Centro, Rio de Janeiro, RJ, 20231-092, Brasil
- Instituto de Ciências Biomédicas da Universidade Federal do Rio de Janeiro (ICB-UFRJ), Rio de Janeiro, Brazil
| | - Carlos Pilotto Heming
- Laboratório de Biomedicina do Cérebro- Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Rio de Janeiro, Brasil. Rua do Rezende, 156 - Centro, Rio de Janeiro, RJ, 20231-092, Brasil
- Instituto de Ciências Biomédicas da Universidade Federal do Rio de Janeiro (ICB-UFRJ), Rio de Janeiro, Brazil
| | - Dennis Kirii Nyaga
- Laboratório de Biomedicina do Cérebro- Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Rio de Janeiro, Brasil. Rua do Rezende, 156 - Centro, Rio de Janeiro, RJ, 20231-092, Brasil
- Faculdade de Medicina da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Veronica Aran
- Laboratório de Biomedicina do Cérebro- Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Rio de Janeiro, Brasil. Rua do Rezende, 156 - Centro, Rio de Janeiro, RJ, 20231-092, Brasil
| | | | - Valeria Pereira Ferrer
- Laboratório de Biomedicina do Cérebro- Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Rio de Janeiro, Brasil. Rua do Rezende, 156 - Centro, Rio de Janeiro, RJ, 20231-092, Brasil
| | - Attilio Pane
- Instituto de Ciências Biomédicas da Universidade Federal do Rio de Janeiro (ICB-UFRJ), Rio de Janeiro, Brazil
| | - Paulo Niemeyer Filho
- Laboratório de Biomedicina do Cérebro- Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Rio de Janeiro, Brasil. Rua do Rezende, 156 - Centro, Rio de Janeiro, RJ, 20231-092, Brasil
| | - Vivaldo Moura-Neto
- Programa de Pós-Graduação em Anatomia Patológica, Faculdade de Medicina da Universidade Federal do Rio de Janeiro - (PPGAP-UFRJ), Rio de Janeiro, Brazil.
- Laboratório de Biomedicina do Cérebro- Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Rio de Janeiro, Brasil. Rua do Rezende, 156 - Centro, Rio de Janeiro, RJ, 20231-092, Brasil.
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Solly EL, Psaltis PJ, Bursill CA, Tan JTM. The Role of miR-181c in Mechanisms of Diabetes-Impaired Angiogenesis: An Emerging Therapeutic Target for Diabetic Vascular Complications. Front Pharmacol 2021; 12:718679. [PMID: 34483928 PMCID: PMC8414254 DOI: 10.3389/fphar.2021.718679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/06/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus is estimated to affect up to 700 million people by the year 2045, contributing to an immense health and economic burden. People living with diabetes have a higher risk of developing numerous debilitating vascular complications, leading to an increased need for medical care, a reduced quality of life and increased risk of early death. Current treatments are not satisfactory for many patients who suffer from impaired angiogenesis in response to ischaemia, increasing their risk of ischaemic cardiovascular conditions. These vascular pathologies are characterised by endothelial dysfunction and abnormal angiogenesis, amongst a host of impaired signaling pathways. Therapeutic stimulation of angiogenesis holds promise for the treatment of diabetic vascular complications that stem from impaired ischaemic responses. However, despite significant effort and research, there are no established therapies that directly stimulate angiogenesis to improve ischaemic complications such as ischaemic heart disease and peripheral artery disease, highlighting the immense unmet need. However, despite significant effort and research, there are no established therapies that directly stimulate angiogenesis in a clinical setting, highlighting the immense unmet need. MicroRNAs (miRNAs) are emerging as powerful targets for multifaceted diseases including diabetes and cardiovascular disease. This review highlights the potential role of microRNAs as therapeutic targets for rescuing diabetes-impaired angiogenesis, with a specific focus on miR-181c, which we have previously identified as an important angiogenic regulator. Here we summarise the pathways currently known to be regulated by miR-181c, which include the classical angiogenesis pathways that are dysregulated in diabetes, mitochondrial function and axonal guidance, and describe how these relate both directly and indirectly to angiogenesis. The pleiotropic actions of miR-181c across multiple key angiogenic signaling pathways and critical cellular processes highlight its therapeutic potential as a novel target for treating diabetic vascular complications.
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Affiliation(s)
- Emma L Solly
- Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Peter J Psaltis
- Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
| | - Christina A Bursill
- Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia.,ARC Centre of Excellence for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, SA, Australia
| | - Joanne T M Tan
- Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Adelaide Medical School, The University of Adelaide, Adelaide, SA, Australia
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7
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Kashif H, Shah D, Sukumari-Ramesh S. Dysregulation of microRNA and Intracerebral Hemorrhage: Roles in Neuroinflammation. Int J Mol Sci 2021; 22:8115. [PMID: 34360881 PMCID: PMC8347974 DOI: 10.3390/ijms22158115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 12/23/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a major public health problem and devastating subtype of stroke with high morbidity and mortality. Notably, there is no effective treatment for ICH. Neuroinflammation, a pathological hallmark of ICH, contributes to both brain injury and repair and hence, it is regarded as a potential target for therapeutic intervention. Recent studies document that microRNAs, small non-coding RNA molecules, can regulate inflammatory brain response after ICH and are viable molecular targets to alter brain function. Therefore, there is an escalating interest in studying the role of microRNAs in the pathophysiology of ICH. Herein, we provide, for the first time, an overview of the microRNAs that play roles in ICH-induced neuroinflammation and identify the critical knowledge gap in the field, as it would help design future studies.
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Affiliation(s)
| | | | - Sangeetha Sukumari-Ramesh
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (H.K.); (D.S.)
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Noncoding RNAs Associated with Therapeutic Resistance in Pancreatic Cancer. Biomedicines 2021; 9:biomedicines9030263. [PMID: 33799952 PMCID: PMC7998345 DOI: 10.3390/biomedicines9030263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 02/06/2023] Open
Abstract
Therapeutic resistance is an inevitable impediment towards effective cancer therapies. Evidence accumulated has shown that the signaling pathways and related factors are fundamentally responsible for therapeutic resistance via regulating diverse cellular events, such as epithelial-to-mesenchymal transition (EMT), stemness, cell survival/apoptosis, autophagy, etcetera. Noncoding RNAs (ncRNAs) have been identified as essential cellular components in gene regulation. The expression of ncRNAs is altered in cancer, and dysregulated ncRNAs participate in gene regulatory networks in pathological contexts. An in-depth understanding of molecular mechanisms underlying the modulation of therapeutic resistance is required to refine therapeutic benefits. This review presents an overview of the recent evidence concerning the role of human ncRNAs in therapeutic resistance, together with the feasibility of ncRNAs as therapeutic targets in pancreatic cancer.
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9
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RPN2 is targeted by miR-181c and mediates glioma progression and temozolomide sensitivity via the wnt/β-catenin signaling pathway. Cell Death Dis 2020; 11:890. [PMID: 33087705 PMCID: PMC7578010 DOI: 10.1038/s41419-020-03113-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 12/12/2022]
Abstract
Accumulating evidence indicates that the dysregulation of the miRNAs/mRNA-mediated carcinogenic signaling pathway network is intimately involved in glioma initiation and progression. In the present study, by performing experiments and bioinformatics analysis, we found that RPN2 was markedly elevated in glioma specimens compared with normal controls, and its upregulation was significantly linked to WHO grade and poor prognosis. Knockdown of RPN2 inhibited tumor proliferation and invasion, promoted apoptosis, and enhanced temozolomide (TMZ) sensitivity in vitro and in vivo. Mechanistic investigation revealed that RPN2 deletion repressed β-catenin/Tcf-4 transcription activity partly through functional activation of glycogen synthase kinase-3β (GSK-3β). Furthermore, we showed that RPN2 is a direct functional target of miR-181c. Ectopic miR-181c expression suppressed β-catenin/Tcf-4 activity, while restoration of RPN2 partly reversed this inhibitory effect mediated by miR-181c, implying a molecular mechanism in which TMZ sensitivity is mediated by miR-181c. Taken together, our data revealed a new miR-181c/RPN2/wnt/β-catenin signaling axis that plays significant roles in glioma tumorigenesis and TMZ resistance, and it represents a potential therapeutic target, especially in GBM.
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10
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Kabir SR, Dai Z, Nurujjaman M, Cui X, Asaduzzaman AKM, Sun B, Zhang X, Dai H, Zhao X. Biogenic silver/silver chloride nanoparticles inhibit human glioblastoma stem cells growth in vitro and Ehrlich ascites carcinoma cell growth in vivo. J Cell Mol Med 2020; 24:13223-13234. [PMID: 33047886 PMCID: PMC7701582 DOI: 10.1111/jcmm.15934] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 12/30/2022] Open
Abstract
The importance of biogenic silver/silver chloride nanoparticles has become increasing day by day. In the present study, silver/silver chloride nanoparticles (Ag/AgCl‐NPs) were synthesized from Kaempferia rotunda tuberous rhizome extract to evaluate the antiproliferative activity against human glioblastoma stem cells (GSCs) in vitro and Ehrlich ascites carcinoma (EAC) cells in vivo in mice. Synthesis of nanoparticles was confirmed by colour change and UV‐visible spectrum and characterized by TEM, XRD, TGA, AFM and FTIR. K rotunda and recently synthesized Zizyphus mauritiana fruit extract‐mediated Ag/AgCl‐NPs inhibited 77.2% and 71% of GSCs growth at 32 µg/mL concentration with the IC50 values of 6.8 and 10.4 µg/mL, respectively. Cell morphological studies and caspase‐3 immunofluorescence assay revealed that both biogenic nanoparticles induced apoptosis in GSCs. Expression levels of several genes were checked by real‐time PCR after treatment with K rotunda tuberous rhizome‐mediated Ag/AgCl‐NPs. PARP, EGFR, NOTCH2 and STAT3 gene expression were decreased with the increase of NFκB, TLR9, IL1, TNFα, IKK and p21 gene that would be the cause of induction of apoptosis in GSCs. The cell cycle arrest at G2/M phase was confirmed by flow cytometric assay. Both nanoparticles were injected intraperitoneally to rapidly growing EAC cells for 5 consecutive days. Approximately, 32.3% and 55% EAC cells growth were inhibited by K rotunda tuberous rhizome‐mediated Ag/AgCl‐NPs at 6 and 12 mg/kg/day doses, respectively while only 20% cell growth inhibition was monitored at 12 mg/kg/day dose of Z mauritiana‐mediated Ag/AgCl‐NPs. From the above results, it can be concluded that presently synthesized nanoparticles would be a potent anticancer agent.
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Affiliation(s)
- Syed Rashel Kabir
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Zhi Dai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences, Kunming Institute of Zoology, Kunming, Yunnan, China
| | - M Nurujjaman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Xiaoyue Cui
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences, Kunming Institute of Zoology, Kunming, Yunnan, China
| | - A K M Asaduzzaman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Bin Sun
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences, Kunming Institute of Zoology, Kunming, Yunnan, China
| | - Xianning Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences, Kunming Institute of Zoology, Kunming, Yunnan, China
| | - Hongjuan Dai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences, Kunming Institute of Zoology, Kunming, Yunnan, China
| | - Xudong Zhao
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences, Kunming Institute of Zoology, Kunming, Yunnan, China
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Unique Interplay Between Molecular miR-181b/d Biomarkers and Health Related Quality of Life Score in the Predictive Glioma Models. Int J Mol Sci 2020; 21:ijms21207450. [PMID: 33050332 PMCID: PMC7589546 DOI: 10.3390/ijms21207450] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/30/2020] [Accepted: 10/07/2020] [Indexed: 11/18/2022] Open
Abstract
In the last decade, an increasing amount of research has been conducted analyzing microRNA expression changes in glioma tissue and its expressed exosomes, but there is still sparse information on microRNAs or other biomarkers and their association with patients’ functional/psychological outcomes. In this study, we performed a combinational analysis measuring miR-181b and miR-181d expression levels by quantitative polymerase chain reaction (qPCR), evaluating isocitrate dehydrogenase 1 (IDH1) single nucleotide polymorphism (SNP), and O-6-methylguanine methyltransferase (MGMT) promoter methylation status in 92 post-surgical glioma samples and 64 serum exosomes, including patients’ quality of life evaluation applying European Organization for Research and Treatment of Cancer (EORTC) questionnaire for cancer patients (QLQ-30), EORTC the Brain Cancer-Specific Quality of Life Questionnaire (QLQ-BN20), and the Karnofsky performance status (KPS). The tumoral expression of miR-181b was lower in grade III and glioblastoma, compared to grade II glioma patients (p < 0.05). Additionally, for the first time, we demonstrated the association between miR-181 expression levels and patients’ quality of life. A positive correlation was observed between tumoral miR-181d levels and glioma patients’ functional parameters (p < 0.05), whereas increased exosomal miR-181b levels indicated a worse functional outcome (p < 0.05). Moreover, elevated miR-181b exosomal expression can indicate a significantly shorter post-surgical survival time for glioblastoma multiforme (GBM) patients. In addition, both tumoral and exosomal miR-181 expression levels were related to patients’ functioning and tumor-related symptoms. Our study adds to previous findings by demonstrating the unique interplay between molecular miR-181b/d biomarkers and health related quality of life (HRQOL) score as both variables remained significant in the predictive glioma models.
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Rezaei O, Honarmand K, Nateghinia S, Taheri M, Ghafouri-Fard S. miRNA signature in glioblastoma: Potential biomarkers and therapeutic targets. Exp Mol Pathol 2020; 117:104550. [PMID: 33010295 DOI: 10.1016/j.yexmp.2020.104550] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 09/19/2020] [Accepted: 09/28/2020] [Indexed: 02/06/2023]
Abstract
MicroRNAs (miRNAs) are transcripts with sizes of about 22 nucleotides, which are produced through a multistep process in the nucleus and cytoplasm. These transcripts modulate the expression of their target genes through binding with certain target regions, particularly 3' suntranslated regions. They are involved in the pathogenesis of several kinds of cancers, such as glioblastoma. Several miRNAs, including miR-10b, miR-21, miR-17-92-cluster, and miR-93, have been up-regulated in glioblastoma cell lines and clinical samples. On the other hand, expression of miR-7, miR-29b, miR-32, miR-34, miR-181 family members, and a number of other miRNAs have been decreased in this type of cancer. In the current review, we explain the role of miRNAs in the pathogenesis of glioblastoma through providing a summary of studies that reported dysregulation of these epigenetic effectors in this kind of brain cancer.
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Affiliation(s)
- Omidvar Rezaei
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kasra Honarmand
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeedeh Nateghinia
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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13
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Recent Trends of microRNA Significance in Pediatric Population Glioblastoma and Current Knowledge of Micro RNA Function in Glioblastoma Multiforme. Int J Mol Sci 2020; 21:ijms21093046. [PMID: 32349263 PMCID: PMC7246719 DOI: 10.3390/ijms21093046] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 12/12/2022] Open
Abstract
Central nervous system tumors are a significant problem for modern medicine because of their location. The explanation of the importance of microRNA (miRNA) in the development of cancerous changes plays an important role in this respect. The first papers describing the presence of miRNA were published in the 1990s. The role of miRNA has been pointed out in many medical conditions such as kidney disease, diabetes, neurodegenerative disorder, arthritis and cancer. There are several miRNAs responsible for invasiveness, apoptosis, resistance to treatment, angiogenesis, proliferation and immunology, and many others. The research conducted in recent years analyzing this group of tumors has shown the important role of miRNA in the course of gliomagenesis. These particles seem to participate in many stages of the development of cancer processes, such as proliferation, angiogenesis, regulation of apoptosis or cell resistance to cytostatics.
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14
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Patra T, Meyer K, Ray RB, Ray R. Hepatitis C Virus Mediated Inhibition of miR-181c Activates ATM Signaling and Promotes Hepatocyte Growth. Hepatology 2020; 71:780-793. [PMID: 31400158 PMCID: PMC7008082 DOI: 10.1002/hep.30893] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 08/05/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Hepatitis C virus (HCV) infection promotes hepatocyte growth and progress to hepatocellular carcinoma. We previously observed that HCV infection of hepatocytes transcriptionally down-regulates miR-181c expression through CCAAT/enhancer binding protein β (C/EBP-β). Here, we examined the role of miR-181c in the regulation of cell cycle progression in relation to HCV infection. In silico analysis suggested that ataxia-telangiectasia mutated (ATM) protein, a protein kinase, is a direct target of miR-181c. ATM is a central mediator of response for cellular DNA double-strand break. APPROACH AND RESULTS Our results demonstrated that ATM expression is higher in HCV-infected hepatocytes and chronic HCV-infected liver biopsy specimens. We have shown a direct interaction of miR-181c with the 3' untranslated region of ATM, and the presence of ATM in miR-181c-associated RNA-induced silencing complex. Exogenous expression of miR-181c inhibited ATM expression and activation of its downstream molecules, Chk2 and Akt. On the other hand, introduction of anti-miR-181c restored ATM and phosphorylated Akt. Furthermore, introduction of miR-181c significantly inhibited phospho-cyclin-dependent kinase 2 (CDK2) and cyclin-A expression, arresting cell cycle progression, whereas overexpression of miR-181c promoted apoptosis of HCV-infected hepatocytes and can be inhibited by overexpression of ATM from a clone lacking miR-181c binding sites. In addition, miR-181c significantly regressed tumor growth in the xenograft human hepatocellular carcinoma mouse model. CONCLUSIONS Together, our results suggest that HCV infection suppresses miR-181c in hepatocytes, resulting in ATM activation and apoptosis inhibition for promotion of cell cycle progression. The results provide mechanistic insight into understanding the role of miR-181c in HCV-associated hepatocyte growth promotion, and may have the potential for therapeutic intervention.
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Affiliation(s)
- Tapas Patra
- Department of Internal Medicine, Saint Louis University, St. Louis, MO
| | - Keith Meyer
- Department of Internal Medicine, Saint Louis University, St. Louis, MO
| | - Ratna B Ray
- Department of Pathology, Saint Louis University, St. Louis, MO
| | - Ranjit Ray
- Department of Internal Medicine, Saint Louis University, St. Louis, MO.,Department of Molecular Microbiology & Immunology, Saint Louis University, St. Louis, MO
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15
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Ngadiono E, Hardiany NS. Advancing towards Effective Glioma Therapy: MicroRNA Derived from Umbilical Cord Mesenchymal Stem Cells' Extracellular Vesicles. Malays J Med Sci 2019; 26:5-16. [PMID: 31496889 PMCID: PMC6719885 DOI: 10.21315/mjms2019.26.4.2] [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] [Received: 08/04/2018] [Accepted: 12/10/2018] [Indexed: 01/20/2023] Open
Abstract
A glioma, especially a grade IV glioblastoma, is a malignant tumour with a poor prognosis despite growing medical advancements. Researchers have been looking for better and more effective treatments targeting the molecular pathways of gliomas due to glioblastomas’ ability to develop resistance to chemotherapies. Moreover, glioma stem cells (GSC) contribute to maintaining the glioma population, which benefits from its ability to self-renew and differentiate. Recent research has reported that through the introduction of umbilical cord mesenchymal stem cells (UCMSC) into glioma cells, the growth and development of the glioma cells can be downregulated. It has more currently been found out that UCMSC release extracellular vesicles (EVs) containing miRNA that are responsible for this phenomenon. Therefore, this review analyses literature to discuss all possible miRNAs contained within the UCMSC’s EVs and to elaborate on their molecular mechanisms in halting gliomas and GSC growth. This review will also include the challenges and limitations, to account for which more in vivo research is suggested. In conclusion, this review highlights how miRNAs contained within UCMSC’s EVs are able to downregulate multiple prominent pathways in the survival of gliomas.
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Affiliation(s)
- Eko Ngadiono
- International Class Program, Faculty of Medicines Universitas Indonesia, Jakarta, Indonesia
| | - Novi Silvia Hardiany
- Department of Biochemistry & Molecular Biology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
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16
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Zhuang L, Qu H, Cong J, Dai H, Liu X. MiR-181c affects estrogen-dependent endometrial carcinoma cell growth by targeting PTEN. Endocr J 2019; 66:523-533. [PMID: 30971627 DOI: 10.1507/endocrj.ej18-0538] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
MicroRNAs (miRNAs), which is a type of non-coding and single-stranded small molecule RNA, bind either completely or incompletely to 3'-UTR of the target gene mRNA to inhibit mRNA translation or degradation. In our study, we aimed to explore the roles and mechanisms of miR-181c in the apoptosis of RL95-2 human endometrial carcinoma cells. Cell activity and apoptosis were detected by cell counting Kit-8 (CCK-8) assay and flow cytometry (FCM), respectively. Related mRNAs and proteins expression was determined by quantitative real-time reverse transcription PCR (qRT-PCR) and western blot assays, respectively. The binding capacity of PTEN-3'-UTR and miR-181c was assessed by luciferase reporter assay. The obtained results suggested that E2 evidently increased the cell activity of RL95-2 cells. In addition, miR-181c inhibitor suppressed the cell viability and enhanced the apoptosis capacity of E2-induced RL95-2 cells and distinctly reduced the miR-181c expression. We also found that miR-181c could bind to PTEN-3'-UTR and miR-181c inhibitor up-regulated the expression level of PTEN in E2-induced RL95-2 cells. Besides, overexpression of PTEN markedly promoted the apoptosis of E2-induced RL95-2 cells through regulating the Bax and Bcl-2 expression, and modulated the expression of AKT pathway, p53 and Cyclin D. In conclusion, our findings revealed that miR-181c affected the estrogen-dependent endometrial carcinoma cell growth by targeting PTEN. The potential effects of miR-181c on the apoptosis of E2-induced RL95-2 cells suggest that miR-181c could be an effective target for endometrial carcinoma therapies.
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Affiliation(s)
- Lili Zhuang
- Department of Center for Reproductive Medicine, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, China
| | - Hongmei Qu
- Department of Obstetrics, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, China
| | - Jianxiang Cong
- Department of Center for Reproductive Medicine, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, China
| | - Huangguan Dai
- Department of Center for Reproductive Medicine, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, China
| | - Xiaoyan Liu
- Department of Center for Reproductive Medicine, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, China
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17
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Bazzoni R, Bentivegna A. Role of Notch Signaling Pathway in Glioblastoma Pathogenesis. Cancers (Basel) 2019; 11:cancers11030292. [PMID: 30832246 PMCID: PMC6468848 DOI: 10.3390/cancers11030292] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/17/2019] [Accepted: 02/25/2019] [Indexed: 12/12/2022] Open
Abstract
Notch signaling is an evolutionarily conserved pathway that regulates important biological processes, such as cell proliferation, apoptosis, migration, self-renewal, and differentiation. In mammals, Notch signaling is composed of four receptors (Notch1–4) and five ligands (Dll1-3–4, Jagged1–2) that mainly contribute to the development and maintenance of the central nervous system (CNS). Neural stem cells (NSCs) are the starting point for neurogenesis and other neurological functions, representing an essential aspect for the homeostasis of the CNS. Therefore, genetic and functional alterations to NSCs can lead to the development of brain tumors, including glioblastoma. Glioblastoma remains an incurable disease, and the reason for the failure of current therapies and tumor relapse is the presence of a small subpopulation of tumor cells known as glioma stem cells (GSCs), characterized by their stem cell-like properties and aggressive phenotype. Growing evidence reveals that Notch signaling is highly active in GSCs, where it suppresses differentiation and maintains stem-like properties, contributing to Glioblastoma tumorigenesis and conventional-treatment resistance. In this review, we try to give a comprehensive view of the contribution of Notch signaling to Glioblastoma and its possible implication as a target for new therapeutic approaches.
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Affiliation(s)
- Riccardo Bazzoni
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Pz.le Scuro 10, 37134 Verona, Italy.
- Program in Clinical and Experimental Biomedical Sciences, University of Verona, 37134 Verona, Italy.
- NeuroMi, Milan Center for Neuroscience, Department of Neurology and Neuroscience, San Gerardo Hospital, University of Milano-Bicocca, 20900 Monza, Italy.
| | - Angela Bentivegna
- NeuroMi, Milan Center for Neuroscience, Department of Neurology and Neuroscience, San Gerardo Hospital, University of Milano-Bicocca, 20900 Monza, Italy.
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy.
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18
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Siriwardhana C, Khadka VS, Chen JJ, Deng Y. Development of a miRNA-seq based prognostic signature in lung adenocarcinoma. BMC Cancer 2019; 19:34. [PMID: 30621620 PMCID: PMC6325795 DOI: 10.1186/s12885-018-5206-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 12/10/2018] [Indexed: 12/29/2022] Open
Abstract
Background We utilized miRNAs expression and clinical data to develop a prognostic signature for patients with lung adenocarcinoma, with respect to their overall survival, to identify high-risk subjects based on their miRNA genomic profile. Methods MiRNA expressions based on miRNA sequencing and clinical data of lung adenocarcinoma patients (n = 479) from the Cancer Genome Atlas were randomly partitioned into non-overlapping Model (n = 320) and Test (n = 159) sets, respectively, for model estimation and validation. Results Among the ten miRNAs identified using the univariate Cox analysis, six from miR-8, miR-181, miR-326, miR-375, miR-99a, and miR-10, families showed improvement of the overall survival chance, while two miRNAs from miR-582 and miR-584 families showed a worsening of survival chances. The final prognostic signature was developed with five miRNAs—miR-375, miR-582-3p, miR-326, miR-181c-5p, and miR-99a-5p—utilizing a stepwise variable selection procedure. Using the KEGG pathway analysis, we found potential evidence supporting their significance in multiple cancer pathways, including non-small cell lung cancer. We defined two risk groups with a score calculated using the Cox regression coefficients. The five-year survival rates for the low-risk group was approximately 48.76% (95% CI = (36.15, 63.93)); however, it was as low as 7.50% (95% CI = (2.34, 24.01)) for the high-risk group. Furthermore, we demonstrated the effect of the genomic profile using the miRNA signature, quantifying survival rates for hypothetical subjects in different pathological stages of cancer. Conclusions The proposed prognostic signature can be used as a reliable tool for identifying high-risk subjects regarding survival based on their miRNA genomic profile. Electronic supplementary material The online version of this article (10.1186/s12885-018-5206-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chathura Siriwardhana
- Bioinformatics and Biostatistics Cores, Department of Complementary and Integrative Medicine, University of Hawaii John A. Burns School of Medicine, Honolulu, HI, 96813, USA.
| | - Vedbar S Khadka
- Bioinformatics and Biostatistics Cores, Department of Complementary and Integrative Medicine, University of Hawaii John A. Burns School of Medicine, Honolulu, HI, 96813, USA
| | - John J Chen
- Bioinformatics and Biostatistics Cores, Department of Complementary and Integrative Medicine, University of Hawaii John A. Burns School of Medicine, Honolulu, HI, 96813, USA
| | - Youping Deng
- Bioinformatics and Biostatistics Cores, Department of Complementary and Integrative Medicine, University of Hawaii John A. Burns School of Medicine, Honolulu, HI, 96813, USA.
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19
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Yan D, Hao C, Xiao-Feng L, Yu-Chen L, Yu-Bin F, Lei Z. Molecular mechanism of Notch signaling with special emphasis on microRNAs: Implications for glioma. J Cell Physiol 2018; 234:158-170. [PMID: 30076599 DOI: 10.1002/jcp.26775] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 04/27/2018] [Indexed: 02/06/2023]
Abstract
Glioma is the most aggressive primary brain tumor and is notorious for resistance to chemoradiotherapy. Although its associated mechanisms are still not completely understood, Notch signaling, an evolutionarily conserved pathway, appears to be the key processes involved. Nevertheless, its mechanisms are sophisticated, due to a variety of targets and signal pathways, especially microRNA. MicroRNAs, which are small noncoding regulatory RNA molecules, have been proposed as one of the key mechanisms in glioma pathogenesis. Among the known glioma associated microRNA, microRNA-129, microRNA-34 family, and microRNA-326 have been shown to influence the progress of glioma through Notch signaling. Evidence also indicates that recurrence is due to development or persistence of the glioma stem-like cells and active angiogenesis, which are tightly regulated by a variety of factors, including Notch signaling. In this review, we summarize the recent progress regarding the functional roles of Notch signaling in glioma, including Notch ligand, microRNA, intracellular crosstalk, glioma stem-like cells and active angiogenesis and explore their clinical implications as diagnostic or prognostic biomarkers and molecular therapeutic targets for glioma.
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Affiliation(s)
- Du Yan
- Department of Basic and Clinical Pharmacology, School of Pharmacy, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China
| | - Chen Hao
- Department of Basic and Clinical Pharmacology, School of Pharmacy, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China
| | - Li Xiao-Feng
- Department of Basic and Clinical Pharmacology, School of Pharmacy, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China
| | - Lu Yu-Chen
- Department of Basic and Clinical Pharmacology, School of Pharmacy, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China
| | - Feng Yu-Bin
- Department of Basic and Clinical Pharmacology, School of Pharmacy, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China
| | - Zhang Lei
- Department of Basic and Clinical Pharmacology, School of Pharmacy, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, China.,Anhui Institute of Innovative Drugs, Hefei, China
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20
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Su Z, Zhang M, Xu M, Li X, Tan J, Xu Y, Pan X, Chen N, Chen X, Zhou Q. MicroRNA181c inhibits prostate cancer cell growth and invasion by targeting multiple ERK signaling pathway components. Prostate 2018; 78:343-352. [PMID: 29341215 DOI: 10.1002/pros.23478] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 12/13/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND The ERK signaling pathway is frequently deregulated in tumorigenesis, mostly by classical mechanisms such as gene mutation of its components (eg, RAS and RAF). However, whether and how multiple key components of ERK pathway are regulated by microRNAs are not clear. METHODS We firstly predicted post-transcriptional regulation of multiple key components of the ERK signaling pathway by miR181c through bioinformatics analysis, and then confirmed the post-transcriptional regulation by dual luciferase reporter gene assays and Western blot analysis. The biological effects of miR181c on prostate cancer cell proliferation, apoptosis, migration, and invasion were measured by CCK-8 assay, flow cytometry, wound scratch assay, transwell cell migration, and invasion assays. RESULTS miR181c post-transcriptionally regulated multiple key members of the ERK signaling pathway, including extracellular signal-regulated kinase 2 (ERK2), ribosomal S6 kinase 2 (RSK2), serum response factor (SRF), and FBJ murine osteosarcoma viral oncogene homolog (c-Fos). Ectopic expression of miR181c mimics effectively suppressed prostate cancer cell proliferation, migration, and invasion, but promoted cell apoptosis. Furthermore, miR181c treatment combined with the multi-kinase inhibitor sorafenib significantly enhanced these anti-tumor effects. CONCLUSIONS Downregulation of miR181c results in deregulated ERK signaling and promotes prostate cancer cell growth and metastasis.
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Affiliation(s)
- Zhengzheng Su
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Mengni Zhang
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Miao Xu
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Xinglan Li
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Junya Tan
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Yunyi Xu
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Xiuyi Pan
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Ni Chen
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Xueqin Chen
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Qiao Zhou
- Department of Pathology and State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
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21
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Loss of miR-107, miR-181c and miR-29a-3p Promote Activation of Notch2 Signaling in Pediatric High-Grade Gliomas (pHGGs). Int J Mol Sci 2017; 18:ijms18122742. [PMID: 29258209 PMCID: PMC5751342 DOI: 10.3390/ijms18122742] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/11/2017] [Accepted: 12/13/2017] [Indexed: 01/21/2023] Open
Abstract
The mechanisms by which microRNAs control pediatric high-grade gliomas (pHGGs) have yet to be fully elucidated. Our studies of patient-derived pHGG tissues and of the pHGG cell line KNS42 revealed down-regulation in these tumors of three microRNAs, specifically miR-107, miR-181c, and miR-29a-3p. This down-regulation increases the proliferation of KNS42 cells by de-repressing expression of the Notch2 receptor (Notch2), a validated target of miR-107 and miR-181c and a putative target of miR-29a-3p. Inhibition (either pharmacologic or genetic) of Notch2 or re-expression of the implicated microRNAs (all three combined but also individually) significantly reduced KNS42 cell proliferation. These findings suggest that Notch2 pathway activation plays a critical role in pHGGs growth and reveal a direct epigenetic mechanism that controls Notch2 expression, which could potentially be targeted by novel forms of therapy for these childhood tumors characterized by high-morbidity and high-mortality.
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Abstract
Glioblastoma is the most aggressive brain tumor and, even with the current multimodal therapy, is an invariably lethal cancer with a life expectancy that depends on the tumor subtype but, even in the most favorable cases, rarely exceeds 2 years. Epigenetic factors play an important role in gliomagenesis, are strong predictors of outcome, and are important determinants for the resistance to radio- and chemotherapy. The latest addition to the epigenetic machinery is the noncoding RNA (ncRNA), that is, RNA molecules that are not translated into a protein and that exert their function by base pairing with other nucleic acids in a reversible and nonmutational mode. MicroRNAs (miRNA) are a class of ncRNA of about 22 bp that regulate gene expression by binding to complementary sequences in the mRNA and silence its translation into proteins. MicroRNAs reversibly regulate transcription through nonmutational mechanisms; accordingly, they can be considered as epigenetic effectors. In this review, we will discuss the role of miRNA in glioma focusing on their role in drug resistance and on their potential applications in the therapy of this tumor.
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23
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Sun W, Min B, Du D, Yang F, Meng J, Wang W, Zhao J, Tan X, Li Z, Sun J. miR-181c protects CsA-induced renal damage and fibrosis through inhibiting EMT. FEBS Lett 2017; 591:3588-3599. [PMID: 28976551 DOI: 10.1002/1873-3468.12872] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/17/2017] [Accepted: 09/26/2017] [Indexed: 01/09/2023]
Abstract
Cyclosporine A (CsA), a widely used immunosuppressive drug in organ transplantation and autoimmune disorders, frequently induces renal damage and fibrosis. Recent evidence has implicated epithelial-mesenchymal transition (EMT) in CsA-induced nephrotoxicity. Microarray analysis disclosed miR-181c as the microRNA most dramatically repressed by CsA. Downregulation of miR-181c expression at the transcriptional level by CsA is dependent on the transcription factor Nrf2. miR-181c mimics or inhibitors attenuate or aggravate CsA-induced EMT gene changes, respectively. Importantly, in Nrf2-/- mice, CsA-induced renal damage, fibrosis, and EMT gene changes are restored by miR-181c mimics. Mechanistically, we identified Notch2 as a potential target of miR-181c. Collectively, our data support the notion that miR-181c may serve as an important factor for protecting renal tissues from CsA-induced nephrotoxicity.
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Affiliation(s)
- Wenjuan Sun
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Binying Min
- Department of Ultrasound, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Dewei Du
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Feng Yang
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Junping Meng
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wen Wang
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jie Zhao
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiaomeng Tan
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhanting Li
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jifeng Sun
- Nephrology Division, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
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Zhang H, Hu B, Wang Z, Zhang F, Wei H, Li L. miR-181c contributes to cisplatin resistance in non-small cell lung cancer cells by targeting Wnt inhibition factor 1. Cancer Chemother Pharmacol 2017; 80:973-984. [PMID: 28956120 DOI: 10.1007/s00280-017-3435-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 09/15/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE miRNAs are implicated in drug resistance of multiple cancers including non-small cell lung cancer (NSCLC), highlighting the potential of miRNAs as chemoresistance regulators in cancer treatment. This study aims to explore the relationship between miR-181c and chemoresistance of NSCLC cells. METHODS qRT-PCR was conducted to examine the expression of miR-181c in NSCLC tissues, and parental and cisplatin (DDP)-resistant NSCLC cells. MTT assay and flow cytometry were performed to detect the survival rate and apoptosis in NSCLC cells. Luciferase reporter assay was performed to confirm the potential target of miR-181c. Xenograft tumor experiment was applied to confirm the effect of miR-181c on DDP sensitivity of DDP-resistant NSCLC cells in vivo. RESULTS miR-181c was upregulated in NSCLC tissues, and parental and DDP-resistant NSCLC cells. miR-181c downregulation or WIF1 overexpression increased DDP sensitivity of DDP-resistant NSCLC cells by decreasing survival rate and promoting DDP-induced apoptosis. miR-181c was demonstrated to be able to bind to WIF1 and negatively regulate the expression of WIF1. WIF1 knockdown abolished anti-miR-181c-induced DDP sensitivity. Moreover, anti-miR-181c suppressed the Wnt/β-catenin pathway by regulating WIF1. XAV939 treatment reversed miR-181c-induced increase in IC50 value and miR-181c-triggered decrease in apoptosis. Finally, anti-miR-181c improved DDP sensitivity of DDP-resistant NSCLC cells in vivo. CONCLUSION miR-181c contributed to DDP resistance in NSCLC cells through activation of the Wnt/β-catenin pathway by targeting WIF1, providing a potential therapeutic application for the treatment of patients with DDP-resistant NSCLC in the future.
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Affiliation(s)
- Haifeng Zhang
- Department of Cardiothoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Baoli Hu
- Department of Cardiothoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Zuopei Wang
- Department of Cardiothoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Feng Zhang
- Department of Cardiothoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Haitao Wei
- Department of Cardiothoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Li Li
- School of Nursing, Henan University, Jinming Campus, Kaifeng, 475000, China.
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Lou S, Ji J, Cheng X, Ruan J, Li R, Guo Z. Oncogenic miR‑132 sustains proliferation and self‑renewal potential by inhibition of polypyrimidine tract‑binding protein 2 in glioblastoma cells. Mol Med Rep 2017; 16:7221-7228. [PMID: 28944929 PMCID: PMC5865849 DOI: 10.3892/mmr.2017.7572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 05/08/2017] [Indexed: 01/22/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the leading type of brain tumor, exhibiting unlimited proliferation and invasion potential. The present study indicated that a high expression level of miR-132 was detected in the neural subtype of GBM and predicted an unfavorable prognosis for patients from The Cancer Genome Atlas cohort (n=526). Cox hazard regression analysis demonstrated miR-132 as an independent prognostic indicator for GBM patients. Further in vitro experiments indicated that miR-132 promoted the proliferation and sphere formation of U87 cells. Unsupervised hierarchical clustering analysis was performed to compare differently expressed genes between two Gene Expression Omnibus (GEO) datasets and Gene Ontology analysis was applied to evaluate the significant signaling pathways modulated by miR-132 in GBM cells within a genetic bioinformatic lab, the Gene-Cloud of Biotechnology Information. By combining the results based on GEO datasets and the miRNA bioinformatic prediction, polypyrimidine tract-binding protein 2 (PTBP2), a brain tissue-specific post-transcriptional protein, was identified as a potential downstream target of miR-132 in GBM. Thus, miR-132 overexpression in GBM cells predicted an unfavorable outcome for patients, and sustained the proliferation and self-renewal abilities of GBM cells in an miR-132/PTBP2 signaling pathway.
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Affiliation(s)
- Silong Lou
- Department of Neurosurgery, The Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Jia Ji
- Department of Neurosurgery, The Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Xin Cheng
- Department of Neurosurgery, The Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Jian Ruan
- Department of Neurosurgery, The Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Rong Li
- Department of Neurosurgery, The Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Zhengjun Guo
- Institute of Pathology and Southwest Cancer Center, and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Third Military Medical University, Chongqing 400038, P.R. China
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Livingstone MC, Johnson NM, Roebuck BD, Kensler TW, Groopman JD. Profound changes in miRNA expression during cancer initiation by aflatoxin B 1 and their abrogation by the chemopreventive triterpenoid CDDO-Im. Mol Carcinog 2017; 56:2382-2390. [PMID: 28218475 DOI: 10.1002/mc.22635] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/01/2017] [Accepted: 02/16/2017] [Indexed: 12/17/2022]
Abstract
Aflatoxin B1 (AFB1 ) is a potent human and animal hepatocarcinogen. To investigate the effects of aflatoxin on miRNA expression during the initiation phase of carcinogenesis, next-generation sequencing was used to analyze liver tissues from F344 rats exposed to 200 μg/kg per day AFB1 for 4 week. A panel of miRNAs was identified that was upregulated with AFB1 treatment compared to controls: rno-miR-434-3p, rno-miR-411-5p, rno-miR-221-3p, rno-miR-127-3p, rno-miR-205, rno-miR-429, rno-miR-34a-5p, rno-miR-181c-3p, rno-miR-200b-3p, and rno-miR-541-5p. Analysis of rat livers exposed to AFB1 plus the chemopreventive triterpenoid CDDO-Im revealed a striking abrogation of this upregulation. These changes were validated by real-time PCR. We also explored the temporal variation in expression of the candidate miRNAs during the 4-week dosing period. Most of the candidate miRNAs were upregulated at week 1 and increased for the duration of AFB1 dosing over the 4-week period. Treatment with CDDO-Im ameliorated these effects at all time points. All candidate miRNAs were detectable in serum from aflatoxin treated animals; however, there was no significant difference in expression for 7 of the 11 miRNAs examined. Exposure to AFB1 upregulated miR-122-5p (fivefold), 34a-5p (13-fold), and 181c-3p (170-fold) compared with controls. The findings from this study give insight into epigenetic changes induced by aflatoxin taking place during the initial step of carcinogenesis.
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Affiliation(s)
| | | | - Bill D Roebuck
- Dartmouth College School of Medicine, Hanover, New Hampshire
| | - Thomas W Kensler
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - John D Groopman
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
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27
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Beyer S, Fleming J, Meng W, Singh R, Haque SJ, Chakravarti A. The Role of miRNAs in Angiogenesis, Invasion and Metabolism and Their Therapeutic Implications in Gliomas. Cancers (Basel) 2017; 9:cancers9070085. [PMID: 28698530 PMCID: PMC5532621 DOI: 10.3390/cancers9070085] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/01/2017] [Accepted: 07/03/2017] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs (miRNAs) are small, non-coding, endogenous RNA molecules that function in gene silencing by post-transcriptional regulation of gene expression. The dysregulation of miRNA plays a pivotal role in cancer tumorigenesis, including the development and progression of gliomas. Their small size, stability and ability to target multiple oncogenes have simultaneously distinguished miRNAs as attractive candidates for biomarkers and novel therapeutic targets for glioma patients. In this review, we summarize the most frequently cited miRNAs known to contribute to gliomagenesis and progression by regulating the defining hallmarks of gliomas, including angiogenesis, invasion, and cell metabolism. We also discuss their promising potential as prognostic and predictive biomarkers and novel therapeutic targets, in addition to the challenges that must be overcome before their translation from bench to bedside.
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Affiliation(s)
- Sasha Beyer
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - Jessica Fleming
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - Wei Meng
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - Rajbir Singh
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - S Jaharul Haque
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - Arnab Chakravarti
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
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A Systemic Analysis of Transcriptomic and Epigenomic Data To Reveal Regulation Patterns for Complex Disease. G3-GENES GENOMES GENETICS 2017; 7:2271-2279. [PMID: 28500050 PMCID: PMC5499134 DOI: 10.1534/g3.117.042408] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Integrating diverse genomics data can provide a global view of the complex biological processes related to the human complex diseases. Although substantial efforts have been made to integrate different omics data, there are at least three challenges for multi-omics integration methods: (i) How to simultaneously consider the effects of various genomic factors, since these factors jointly influence the phenotypes; (ii) How to effectively incorporate the information from publicly accessible databases and omics datasets to fully capture the interactions among (epi)genomic factors from diverse omics data; and (iii) Until present, the combination of more than two omics datasets has been poorly explored. Current integration approaches are not sufficient to address all of these challenges together. We proposed a novel integrative analysis framework by incorporating sparse model, multivariate analysis, Gaussian graphical model, and network analysis to address these three challenges simultaneously. Based on this strategy, we performed a systemic analysis for glioblastoma multiforme (GBM) integrating genome-wide gene expression, DNA methylation, and miRNA expression data. We identified three regulatory modules of genomic factors associated with GBM survival time and revealed a global regulatory pattern for GBM by combining the three modules, with respect to the common regulatory factors. Our method can not only identify disease-associated dysregulated genomic factors from different omics, but more importantly, it can incorporate the information from publicly accessible databases and omics datasets to infer a comprehensive interaction map of all these dysregulated genomic factors. Our work represents an innovative approach to enhance our understanding of molecular genomic mechanisms underlying human complex diseases.
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Chen M, Wang M, Xu S, Guo X, Jiang J. Upregulation of miR-181c contributes to chemoresistance in pancreatic cancer by inactivating the Hippo signaling pathway. Oncotarget 2016; 6:44466-79. [PMID: 26561204 PMCID: PMC4792569 DOI: 10.18632/oncotarget.6298] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Accepted: 10/13/2015] [Indexed: 11/25/2022] Open
Abstract
The Hippo signaling pathway plays a crucial role in regulating tissue homeostasis, organ size, tumorigenesis and cancer chemoresistance when deregulated. Physiologically, the Hippo core kinase cassette that consists of mamma-lian STE20-like protein kinase 1/2 (MST1/2), and large tumour suppressor 1/2 (LATS1/2), together with the adaptor proteins Salvador homologue 1 (SAV1) and MOB kinase activator 1 (MOB1), tightly restricts the activities of homologous oncoproteins Yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ) to low levels. However, how the Hippo kinase cassette core components are simultaneously inhibited, to exhibit constitutively inactivated Hippo signaling and activated YAP/TAZ in cancer remains puzzling. Herein, we reported that miR-181c directly repressed MST1, LATS2, MOB1 and SAV1 expression in human pancreatic cancer cells. Overexpression of miR-181c induced hyperactivation of the YAP/TAZ and enhanced expression of the Hippo signaling downstream genes CTGF, BIRC5 and BLC2L1, leading to pancreatic cancer cell survival and chemoresistance in vitro and in vivo. Importantly, high miR-181c levels were significantly correlated with Hippo signaling inactivation in pancreatic cancer samples, and predicted a poor patient overall survival. These findings provide a novel mechanism for Hippo signaling inactivation in cancer, indicating not only a potentially pivotal role for miR-181c in the progression of pancreatic cancer, but also may represent a new therapeutic target and prognostic marker.
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Affiliation(s)
- Meiyuan Chen
- Department of Hepatic-Biliary-Pancreatic Surgery, Hubei Cancer Hospital, Wuhan, Hubei, 430079, China
| | - Min Wang
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Simiao Xu
- Department of Endocrinology and Metabolism, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Xingjun Guo
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Jianxin Jiang
- Department of Hepatic-Biliary-Pancreatic Surgery, Hubei Cancer Hospital, Wuhan, Hubei, 430079, China
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Deregulation of miRNA-181c potentially contributes to the pathogenesis of AD by targeting collapsin response mediator protein 2 in mice. J Neurol Sci 2016; 367:3-10. [DOI: 10.1016/j.jns.2016.05.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 05/05/2016] [Accepted: 05/18/2016] [Indexed: 12/26/2022]
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31
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Shea A, Harish V, Afzal Z, Chijioke J, Kedir H, Dusmatova S, Roy A, Ramalinga M, Harris B, Blancato J, Verma M, Kumar D. MicroRNAs in glioblastoma multiforme pathogenesis and therapeutics. Cancer Med 2016; 5:1917-46. [PMID: 27282910 PMCID: PMC4971921 DOI: 10.1002/cam4.775] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/05/2016] [Accepted: 04/14/2016] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and lethal cancer of the adult brain, remaining incurable with a median survival time of only 15 months. In an effort to identify new targets for GBM diagnostics and therapeutics, recent studies have focused on molecular phenotyping of GBM subtypes. This has resulted in mounting interest in microRNAs (miRNAs) due to their regulatory capacities in both normal development and in pathological conditions such as cancer. miRNAs have a wide range of targets, allowing them to modulate many pathways critical to cancer progression, including proliferation, cell death, metastasis, angiogenesis, and drug resistance. This review explores our current understanding of miRNAs that are differentially modulated and pathologically involved in GBM as well as the current state of miRNA-based therapeutics. As the role of miRNAs in GBM becomes more well understood and novel delivery methods are developed and optimized, miRNA-based therapies could provide a critical step forward in cancer treatment.
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Affiliation(s)
- Amanda Shea
- Division of Science and MathematicsCancer Research LaboratoryUniversity of the District of ColumbiaWashingtonDistrict of Columbia20008
| | | | - Zainab Afzal
- Division of Science and MathematicsCancer Research LaboratoryUniversity of the District of ColumbiaWashingtonDistrict of Columbia20008
| | - Juliet Chijioke
- Division of Science and MathematicsCancer Research LaboratoryUniversity of the District of ColumbiaWashingtonDistrict of Columbia20008
| | - Habib Kedir
- Division of Science and MathematicsCancer Research LaboratoryUniversity of the District of ColumbiaWashingtonDistrict of Columbia20008
| | - Shahnoza Dusmatova
- Division of Science and MathematicsCancer Research LaboratoryUniversity of the District of ColumbiaWashingtonDistrict of Columbia20008
| | - Arpita Roy
- Division of Science and MathematicsCancer Research LaboratoryUniversity of the District of ColumbiaWashingtonDistrict of Columbia20008
| | - Malathi Ramalinga
- Division of Science and MathematicsCancer Research LaboratoryUniversity of the District of ColumbiaWashingtonDistrict of Columbia20008
| | - Brent Harris
- Department of Neurology and PathologyGeorgetown UniversityWashingtonDistrict of Columbia20057
| | - Jan Blancato
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDistrict of Columbia20057
| | - Mukesh Verma
- Division of Cancer Control and Population SciencesNational Cancer Institute (NCI)National Institutes of Health (NIH)RockvilleMaryland20850
| | - Deepak Kumar
- Division of Science and MathematicsCancer Research LaboratoryUniversity of the District of ColumbiaWashingtonDistrict of Columbia20008
- Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDistrict of Columbia20057
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Dhondt B, Rousseau Q, De Wever O, Hendrix A. Function of extracellular vesicle-associated miRNAs in metastasis. Cell Tissue Res 2016; 365:621-41. [DOI: 10.1007/s00441-016-2430-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 05/07/2016] [Indexed: 01/08/2023]
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Mori F, Sacconi A, Canu V, Ganci F, Novello M, Anelli V, Covello R, Ferraresi V, Muti P, Biagini R, Blandino G, Strano S. miR-181c associates with tumor relapse of high grade osteosarcoma. Oncotarget 2016; 6:13946-61. [PMID: 26062442 PMCID: PMC4546443 DOI: 10.18632/oncotarget.3539] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 02/17/2015] [Indexed: 11/25/2022] Open
Abstract
High-grade osteosarcoma (OS) is characterized by low incidence, high aggressiveness and moderate 5-years survival rate after aggressive poly-chemotherapy and surgery. Here we used miRNA profiling as a tool to possibly predict and monitor OS's development and therapeutic outcome. First, we evaluated the altered expression of selected miRNAs from a case of Giant Cell Tumor (GCT) apparently evolved into an OS. We found that most of modulated miRs were associated with pathways of bone resorption and osteogenesis. miRNA expression also revealed that GCT and OS were distinct tumors. Second, we validated the observed miRNA profile in two independent casuistries of ten GCT (not evolved into malignant tumors) and sixteen OS patients. Interestingly, we found that miR-181c and other three miRNAs identified in the first step of the study were also consistently de-regulated in all OS patients. Ectopic expression of miR-181c reduced cell viability and enhanced chemotherapeutic-induced cell death of U2OS and SAOS2 cells. These findings indicate that: i) miRNAs aberrantly modulated in GCT could be predictive of its development into OS and ii) miRNAs expression could be useful to monitor the OS therapeutic outcome.
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Affiliation(s)
- Federica Mori
- Molecular Chemoprevention Unit, Regina Elena National Cancer Institute, Rome, Italy
| | - Andrea Sacconi
- Translational Oncogenomics, Regina Elena National Cancer Institute, Rome, Italy
| | - Valeria Canu
- Translational Oncogenomics, Regina Elena National Cancer Institute, Rome, Italy
| | - Federica Ganci
- Translational Oncogenomics, Regina Elena National Cancer Institute, Rome, Italy
| | | | - Vincenzo Anelli
- UOC Radiology, Regina Elena National Cancer Institute, Rome, Italy
| | - Renato Covello
- UOC Department of Pathology, Regina Elena National Cancer Institute, Rome, Italy
| | | | - Paola Muti
- Department of Oncology, McMaster University, Hamilton, ON, Canada
| | - Roberto Biagini
- UOC Orthopedic Surgery, Regina Elena National Cancer Institute, Rome, Italy
| | - Giovanni Blandino
- Translational Oncogenomics, Regina Elena National Cancer Institute, Rome, Italy.,Department of Oncology, McMaster University, Hamilton, ON, Canada
| | - Sabrina Strano
- Molecular Chemoprevention Unit, Regina Elena National Cancer Institute, Rome, Italy.,Department of Oncology, McMaster University, Hamilton, ON, Canada
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Furtado KS, de Oliveira Andrade F, Campos A, Rosim MP, Vargas-Mendez E, Henriques A, De Conti A, Scolastici C, Barbisan LF, Carvalho RF, Moreno FS. β-ionone modulates the expression of miRNAs and genes involved in the metastatic phenotype of microdissected persistent preneoplastic lesions in rats submitted to hepatocarcinogenesis. Mol Carcinog 2016; 56:184-196. [PMID: 27061051 DOI: 10.1002/mc.22483] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 02/25/2016] [Accepted: 03/18/2016] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are post-transcriptional gene expression regulators which expression is frequently altered in hepatocellular carcinoma (HCC). β-ionone (βI) is noted for its ability to inhibit persistent preneoplastic lesions (pPNLs) in liver rats. We evaluated the expression of miRNAs involved in carcinogenesis and possible targets modulated by βI, in pPNLs and surrounding of microdissected tissues. Rats subjected to resistant hepatocyte model were treated during promotion stage with βI (16 mg/100 g body weight) or corn oil (CO; 0.25 mL/100 g body weight; controls). Five animals receive no treatment (NT). In CO group, 38 and 29 miRNAs showed reduced expression relative to NT (P < 0.05) in pPNLs and surrounding, respectively. No miRNAs showed increased expression in surrounding of the CO compared to NT group; however, 30 miRNAs showed increased expression (P ≤ 0.05) in pPNLs of the CO group. There was no difference between βI and CO groups (P > 0.05) in the expression of miRNAs in surrounding. In pPNLs βI increased expression of miR-122 and miR-34a (P ≤ 0.05) and reduced of Igf2 (P ≤ 0.05), target of the latter, compared to CO. Additionally, βI decreased the expression of miR-181c and its target Gdf2 (P ≤ 0.05). βI reduced the expression of miR-181b and miR-708 (P ≤ 0.05) and increased the expression of their respective target mRNAs Timp3 and Mtss1 (P ≤ 0.05), relative to CO group. Modulation of miRNAs target genes by βI was confirmed in vitro. βI is a promising chemopreventive agent in the initial stages of hepatocarcinogenesis, as it modulates the expression of the miRNAs and target genes that can alter the metastatic phenotype of HCC. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Kelly Silva Furtado
- Laboratory of Diet, Nutrition, and Cancer, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
| | - Fábia de Oliveira Andrade
- Laboratory of Diet, Nutrition, and Cancer, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
| | - Adriana Campos
- Laboratory of Diet, Nutrition, and Cancer, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
| | - Mariana Papaléo Rosim
- Laboratory of Nutrigenomics and Programming, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
| | - Ernesto Vargas-Mendez
- Laboratory of Diet, Nutrition, and Cancer, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
| | - Aline Henriques
- Laboratory of Diet, Nutrition, and Cancer, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
| | - Aline De Conti
- Laboratory of Diet, Nutrition, and Cancer, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
| | - Clarissa Scolastici
- Laboratory of Diet, Nutrition, and Cancer, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
| | - Luis Fernando Barbisan
- Laboratory of Experimental Chemical Carcinogenesis, Department of Morphology, Botucatu, Institute of Biosciences, São Paulo State University, São Paulo, Brazil
| | - Robson Francisco Carvalho
- Laboratory of Striated Muscle Biology, Department of Morphology, Botucatu, Institute of Biosciences, São Paulo State University, São Paulo, Brazil
| | - Fernando Salvador Moreno
- Laboratory of Diet, Nutrition, and Cancer, Faculty of Pharmaceutical Sciences, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, SP, Brazil
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Ayala-Ortega E, Arzate-Mejía R, Pérez-Molina R, González-Buendía E, Meier K, Guerrero G, Recillas-Targa F. Epigenetic silencing of miR-181c by DNA methylation in glioblastoma cell lines. BMC Cancer 2016; 16:226. [PMID: 26983574 PMCID: PMC4794844 DOI: 10.1186/s12885-016-2273-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 03/10/2016] [Indexed: 12/12/2022] Open
Abstract
Background Post-transcriptional regulation by microRNAs is recognized as one of the major pathways for the control of cellular homeostasis. Less well understood is the transcriptional and epigenetic regulation of genes encoding microRNAs. In the present study we addressed the epigenetic regulation of the miR-181c in normal and malignant brain cells. Methods To explore the epigenetic regulation of the miR-181c we evaluated its expression using RT-qPCR and the in vivo binding of the CCCTC-binding factor (CTCF) to its regulatory region in different glioblastoma cell lines. DNA methylation survey, chromatin immunoprecipitation and RNA interference assays were used to assess the role of CTCF in the miR-181c epigenetic silencing. Results We found that miR-181c is downregulated in glioblastoma cell lines, as compared to normal brain tissues. Loss of expression correlated with a notorious gain of DNA methylation at the miR-181c promoter region and the dissociation of the multifunctional nuclear factor CTCF. Taking advantage of the genomic distribution of CTCF in different cell types we propose that CTCF has a local and cell type specific regulatory role over the miR-181c and not an architectural one through chromatin loop formation. This is supported by the depletion of CTCF in glioblastoma cells affecting the expression levels of NOTCH2 as a target of miR-181c. Conclusion Together, our results point to the epigenetic role of CTCF in the regulation of microRNAs implicated in tumorigenesis. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2273-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Erandi Ayala-Ortega
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Rodrigo Arzate-Mejía
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Rosario Pérez-Molina
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Edgar González-Buendía
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Karin Meier
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Georgina Guerrero
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Félix Recillas-Targa
- Instituto de Fisiología Celular, Departamento de Genética Molecular, Universidad Nacional Autónoma de México, Ciudad de México, México.
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Safa AR, Saadatzadeh MR, Cohen-Gadol AA, Pollok KE, Bijangi-Vishehsaraei K. Emerging targets for glioblastoma stem cell therapy. J Biomed Res 2015; 30:19-31. [PMID: 26616589 PMCID: PMC4726830 DOI: 10.7555/jbr.30.20150100] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 07/27/2015] [Accepted: 08/07/2015] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma multiforme (GBM), designated as World Health Organization (WHO) grade IV astrocytoma, is a lethal and therapy-resistant brain cancer comprised of several tumor cell subpopulations, including GBM stem cells (GSCs) which are believed to contribute to tumor recurrence following initial response to therapies. Emerging evidence demonstrates that GBM tumors are initiated from GSCs. The development and use of novel therapies including small molecule inhibitors of specific proteins in signaling pathways that regulate stemness, proliferation and migration of GSCs, immunotherapy, and non-coding microRNAs may provide better means of treating GBM. Identification and characterization of GSC-specific signaling pathways would be necessary to identify specific therapeutic targets which may lead to the development of more efficient therapies selectively targeting GSCs. Several signaling pathways including mTOR, AKT, maternal embryonic leucine zipper kinase (MELK), NOTCH1 and Wnt/β-catenin as well as expression of cancer stem cell markers CD133, CD44, Oct4, Sox2, Nanog, and ALDH1A1 maintain GSC properties. Moreover, the data published in the Cancer Genome Atlas (TCGA) specifically demonstrated the activated PI3K/AKT/mTOR pathway in GBM tumorigenesis. Studying such pathways may help to understand GSC biology and lead to the development of potential therapeutic interventions to render them more sensitive to chemotherapy and radiation therapy. Furthemore, recent demonstration of dedifferentiation of GBM cell lines into CSC-like cells prove that any successful therapeutic agent or combination of drugs for GBM therapy must eliminate not only GSCs, but the differentiated GBM cells and the entire bulk of tumor cells.
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Affiliation(s)
- Ahmad R Safa
- Indiana University Simon Cancer Center.,Department of Pharmacology and Toxicology.
| | - Mohammad Reza Saadatzadeh
- Indiana University Simon Cancer Center.,Department of Neurosurgery, IU School of Medicine and Goodman Campbell Brain and Spine
| | - Aaron A Cohen-Gadol
- Department of Neurosurgery, IU School of Medicine and Goodman Campbell Brain and Spine
| | - Karen E Pollok
- Indiana University Simon Cancer Center.,Department of Pharmacology and Toxicology.,Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Safa AR, Saadatzadeh MR, Cohen-Gadol AA, Pollok KE, Bijangi-Vishehsaraei K. Glioblastoma stem cells (GSCs) epigenetic plasticity and interconversion between differentiated non-GSCs and GSCs. Genes Dis 2015; 2:152-163. [PMID: 26137500 PMCID: PMC4484766 DOI: 10.1016/j.gendis.2015.02.001] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 02/01/2015] [Indexed: 12/16/2022] Open
Abstract
Cancer stem cells (CSCs) or cancer initiating cells (CICs) maintain self-renewal and multilineage differentiation properties of various tumors, as well as the cellular heterogeneity consisting of several subpopulations within tumors. CSCs display the malignant phenotype, self-renewal ability, altered genomic stability, specific epigenetic signature, and most of the time can be phenotyped by cell surface markers (e.g., CD133, CD24, and CD44). Numerous studies support the concept that non-stem cancer cells (non-CSCs) are sensitive to cancer therapy while CSCs are relatively resistant to treatment. In glioblastoma stem cells (GSCs), there is clonal heterogeneity at the genetic level with distinct tumorigenic potential, and defined GSC marker expression resulting from clonal evolution which is likely to influence disease progression and response to treatment. Another level of complexity in glioblastoma multiforme (GBM) tumors is the dynamic equilibrium between GSCs and differentiated non-GSCs, and the potential for non-GSCs to revert (dedifferentiate) to GSCs due to epigenetic alteration which confers phenotypic plasticity to the tumor cell population. Moreover, exposure of the differentiated GBM cells to therapeutic doses of temozolomide (TMZ) or ionizing radiation (IR) increases the GSC pool both in vitro and in vivo. This review describes various subtypes of GBM, discusses the evolution of CSC models and epigenetic plasticity, as well as interconversion between GSCs and differentiated non-GSCs, and offers strategies to potentially eliminate GSCs.
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Affiliation(s)
- Ahmad R. Safa
- Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Mohammad Reza Saadatzadeh
- Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Neurosurgery, IU School of Medicine and Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Aaron A. Cohen-Gadol
- Department of Neurosurgery, IU School of Medicine and Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Karen E. Pollok
- Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Khadijeh Bijangi-Vishehsaraei
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Wang S, Li W, Lian B, Liu X, Zhang Y, Dai E, Yu X, Meng F, Jiang W, Li X. TMREC: A Database of Transcription Factor and MiRNA Regulatory Cascades in Human Diseases. PLoS One 2015; 10:e0125222. [PMID: 25932650 PMCID: PMC4416930 DOI: 10.1371/journal.pone.0125222] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 03/22/2015] [Indexed: 11/18/2022] Open
Abstract
Over the past decades, studies have reported that the combinatorial regulation of transcription factors (TFs) and microRNAs (miRNAs) is essential for the appropriate execution of biological events and developmental processes. Dysregulations of these regulators often cause diseases. However, there are no available resources on the regulatory cascades of TFs and miRNAs in the context of human diseases. To fulfill this vacancy, we established the TMREC database in this study. First, we integrated curated transcriptional and post-transcriptional regulations to construct the TF and miRNA regulatory network. Next, we identified all linear paths using the Breadth First Search traversal method. Finally, we used known disease-related genes and miRNAs to measure the strength of association between cascades and diseases. Currently, TMREC consists of 74,248 cascades and 25,194 cascade clusters, involving in 412 TFs, 266 miRNAs and 545 diseases. With the expanding of experimental support regulation data, we will regularly update the database. TMREC aims to help experimental biologists to comprehensively analyse gene expression regulation, to understand the aetiology and to predict novel therapeutic targets.TMREC is freely available at http://bioinfo.hrbmu.edu.cn/TMREC/.
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Affiliation(s)
- Shuyuan Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
| | - Wei Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
- EpiRNA Lab, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, P. R. China
| | - Baofeng Lian
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
- Shanghai Center for Bioinformation Technology, Shanghai, 201203, P. R. China
| | - Xinyi Liu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
| | - Yan Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
| | - Enyu Dai
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
| | - Xuexin Yu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
| | - Fanlin Meng
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
| | - Wei Jiang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
- * E-mail: (XL); (WJ)
| | - Xia Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150081, P. R. China
- * E-mail: (XL); (WJ)
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Sun B, Liu R, Ye N, Xiao ZD. Comprehensive evaluation of microRNA expression profiling reveals the neural signaling specific cytotoxicity of superparamagnetic iron oxide nanoparticles (SPIONs) through N-methyl-D-aspartate receptor. PLoS One 2015; 10:e0121671. [PMID: 25798908 PMCID: PMC4370573 DOI: 10.1371/journal.pone.0121671] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Accepted: 02/03/2015] [Indexed: 01/31/2023] Open
Abstract
Though nanomaterials are considered as drug carriers or imaging reagents targeting the central nervous system their cytotoxicity effect on neuronal cells has not been well studied. In this study, we treated PC12 cells, a model neuronal cell line, with a nanomaterial that is widely accepted for medical use, superparamagnetic iron oxide nanoparticles (SPIONs). Our results suggest that, after treated with SPIONs, the expression pattern of the cellular miRNAs changed widely in PC12 cells. As potential miRNA targets, NMDAR, one of the candidate mRNAs that were selected using GO and KEGG pathway enrichment, was significantly down regulated by SPIONs treatment. We further illustrated that SPIONs may induce cell death through NMDAR suppression. This study revealed a NMDAR neurotoxic effect of SPIONs and provides a reliable approach for assessing the neurocytotoxic effects of nanomaterials based on the comprehensive annotation of miRNA profiling.
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Affiliation(s)
- Bo Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
- Institute of Microbiology, School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Rui Liu
- Laboratory of Biophysics, School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Nan Ye
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Zhong-Dang Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
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