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Cheng Z, Wang G, Zhu W, Luo C, Guo Z. LEF1-AS1 accelerates tumorigenesis in glioma by sponging miR-489-3p to enhance HIGD1A. Cell Death Dis 2020; 11:690. [PMID: 32826866 PMCID: PMC7442828 DOI: 10.1038/s41419-020-02823-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 11/25/2022]
Abstract
Long non-coding (lncRNA) lymphoid enhancer-binding factor 1 antisense RNA 1 (LEF1-AS1) has been validated to be implicated in manifold cancers, whereas its function in glioma has not been understood thoroughly. Hence, in this study, we tested that LEF1-AS1 expression was significantly upregulated in glioma tissues and cell lines. Besides, knockdown of LEF1-AS1 repressed cell proliferation while activated apoptosis in glioma cells in vitro, and also suppressed tumor growth in vivo. RNA pull-down and luciferase reporter assays affirmed that LEF1-AS1 could bind with miR-489-3p. In addition, miR-489-3p expression was downregulated in glioma cells. Moreover, miR-489-3p depletion partly offset LEF1-AS1 knockdown-mediated function on proliferation and apoptosis. Further, HIGD1A identified as the target gene of miR-489-3p was upregulated in glioma cells. HIGD1A silence could restrict the process of glioma. In rescue assays, upregulation of HIGD1A remedied the inhibitory impacts of LEF1-AS1 silence on glioma cell growth. In summary, our studies corroborated the regulatory mechanism of LEF1-AS1/miR-489-3p/HIGD1A axis in glioma, suggesting that targeting LEF1-AS1 might be a promising method for glioma therapy in the future.
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Affiliation(s)
- Zhihua Cheng
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, No. 639 Zhizaoju Road, 200011, Shanghai, China
| | - Guangyu Wang
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, No. 639 Zhizaoju Road, 200011, Shanghai, China
| | - Weiyi Zhu
- Department of Neurosurgery, Shanghai Jing'an District Central Hospital, No. 259 Xikang Road, 200040, Shanghai, China
| | - Cong Luo
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, No. 639 Zhizaoju Road, 200011, Shanghai, China
| | - Zhilin Guo
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, No. 639 Zhizaoju Road, 200011, Shanghai, China.
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Choppavarapu L, Kandi SM. Circulating MicroRNAs as Potential Biomarkers in Glioma: A Mini-Review. Endocr Metab Immune Disord Drug Targets 2020; 21:195-202. [PMID: 32744979 DOI: 10.2174/1871530320666200730230422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 05/12/2020] [Accepted: 06/01/2020] [Indexed: 11/22/2022]
Abstract
Glioma comprises of a group of heterogeneous brain tumors originating from glial cells. Primary glioblastoma is among the most common glial cells that have a characteristic clinical and molecular profile. Advancement in the field of cancer research and inventions of various clinical methodologies could not improve the median survival of this deadly tumor from 12 months. The development of a non-invasive prognostic biomarker in blood would be a revolution in the diagnosis and therapeutic monitoring of this tumor. Extracellular vesicles (Evs) are released from the tumor microenvironment into the blood, which contains the genetic material that represents the genetics of tumor cells. It is also seen that these Evs contain a variety of RNA populations, including miRNAs. Several studies identified that circulating cell-free miRNAs, either free or present in Evs, could be considered as a potential biomarker in early diagnosis and prognosis of glioblastoma. Micro RNA studies in glioblastoma have found to be promising, as it reveals the biological pathway behind pathogenesis and helps in predicting the treatment targets. The literature says that various treatment methods change the type and quantity of miRNAs in biological fluids, which can be used to monitor the therapy. This review paper focuses on the role of circulating miRNAs as potential biomarkers in the diagnosis and clinical management of glioma patients.
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Affiliation(s)
| | - Sibin M Kandi
- Department of Biochemistry, Armed Forces Medical College, Pune, Maharashtra, India
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Bai Y, Hou J, Wang X, Geng L, Jia X, Xiang L, Nan K. Circ_0000218 plays a carcinogenic role in laryngeal cancer through regulating microRNA-139-3p/Smad3 axis. Pathol Res Pract 2020; 216:153103. [PMID: 32825967 DOI: 10.1016/j.prp.2020.153103] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/30/2020] [Accepted: 07/07/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND Laryngeal squamous cell carcinoma (LSCC) accounts for about 85%-90% of all cases of laryngeal cancer. So far, the role and molecular mechanism of circular RNA 0,000,218 (circ_0000218)/microRNA (miR)-139-3p in laryngeal cancer are not clear. The present study aimed to investigate the role and regulatory mechanism of circ_0000218/miR-139-3p in laryngeal cancerin vitro and in vivo. METHODS quantitative real time polymerase chain reaction (qRT-PCR) was used to detect the expression of circ_0000218/miR-139-3p in LSCC cells. Dual luciferase reporter assay and RNA immunoprecipitation (RIP) assay were used to confirm binding sites between miR-139-3p and smad family member 3 (Smad3), and circ_0000218 and miR-139-3p. Cell Counting Kit-8 (CCK-8) and cell apoptosis analysis were used to detect cell viability and apoptosis. Xenograft experiment was performed to show in vivo effect of circ_0000218/miR-139-3p on the growth of LSCC. RESULTS Circ_0000218 was highly expressed in LSCC cells. miR-139-3p, lower expressed in LSCC cells, was negatively regulated by circ_0000218 in LSCC cells. Besides, the findings suggested that circ_0000218 silencing inhibited the LSCC cell viability and promoted apoptosis by negatively regulating miR-139-3p expression. Furthermore, the data indicated that miR-139-3p inhibited the viability of LSCC cells and promoted apoptosis, and these effects were reversed by Smad3 over-expression. In addition, the in vivo effects of circ_0000218/miR-139-3p on LSCC were consistent with the in vitro study. CONCLUSIONS circ_0000218 inhibition inhibited the growth of LSCC by targeting miR-139-3p/Smad3 axis. Our present study provided a new target for laryngeal cancer treatment.
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Affiliation(s)
- Yiyang Bai
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Jia Hou
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Xiao Wang
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Luying Geng
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Xiaohui Jia
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Luochengling Xiang
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Kejun Nan
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Oncology Hospital, Xi'an International Medical Center Hospital, Xi'an, Shaanxi 710075, China.
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Hanif S, Muhammad P, Chesworth R, Rehman FU, Qian RJ, Zheng M, Shi BY. Nanomedicine-based immunotherapy for central nervous system disorders. Acta Pharmacol Sin 2020; 41:936-953. [PMID: 32467570 PMCID: PMC7468531 DOI: 10.1038/s41401-020-0429-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 04/22/2020] [Indexed: 12/15/2022] Open
Abstract
Central nervous system (CNS) disorders represent a broad spectrum of brain ailments with short- and long-term disabilities, and nanomedicine-based approaches provide a new therapeutic approach to treating CNS disorders. A variety of potential drugs have been discovered to treat several neuronal disorders; however, their therapeutic success can be limited by the presence of the blood-brain barrier (BBB). Furthermore, unique immune functions within the CNS provide novel target mechanisms for the amelioration of CNS diseases. Recently, various therapeutic approaches have been applied to fight brain-related disorders, with moderate outcomes. Among the various therapeutic strategies, nanomedicine-based immunotherapeutic systems represent a new era that can deliver useful cargo with promising pharmacokinetics. These approaches exploit the molecular and cellular targeting of CNS disorders for enhanced safety, efficacy, and specificity. In this review, we focus on the efficacy of nanomedicines that utilize immunotherapy to combat CNS disorders. Furthermore, we detailed summarize nanomedicine-based pathways for CNS ailments that aim to deliver drugs across the BBB by mimicking innate immune actions. Overview of how nanomedicines can utilize multiple immunotherapy pathways to combat CNS disorders. ![]()
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miR-137: A Novel Therapeutic Target for Human Glioma. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 21:614-622. [PMID: 32736290 PMCID: PMC7393316 DOI: 10.1016/j.omtn.2020.06.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/18/2020] [Accepted: 06/26/2020] [Indexed: 12/14/2022]
Abstract
MicroRNA (miR)-137 is highly expressed in the brain and plays a crucial role in the development and prognosis of glioma. In this review, we aim to summarize the latest findings regarding miR-137 in glioma cell apoptosis, proliferation, migration, invasion, angiogenesis, drug resistance, and cancer treatment. In addition, we focus on the identified miR-137 targets and pathways in the occurrence and development of glioma. Finally, future implications for the diagnostic and therapeutic potential of miR-137 in glioma were discussed.
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de la Rocha AMA, González-Huarriz M, Guruceaga E, Mihelson N, Tejada-Solís S, Díez-Valle R, Martínez-Vélez N, Fueyo J, Gomez-Manzano C, Alonso MM, Laterra J, López-Bertoni H. miR-425-5p, a SOX2 target, regulates the expression of FOXJ3 and RAB31 and promotes the survival of GSCs. ACTA ACUST UNITED AC 2020; 4:221-238. [PMID: 32905473 PMCID: PMC7470213 DOI: 10.26502/acbr.50170100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Glioblastoma (GBM) is the most common malignant primary brain tumor in adults and prognosis is poor despite maximum therapeutic efforts. GBM is composed of heterogeneous cell populations, among which the glioma stem-like cells (GSCs) play an important role in tumor cell self-renewal and the ability to initiate and drive tumor growth and recurrence. The transcription factor SOX2 is enriched in GSCs where it controls the stem cell phenotype, invasion and maintenance of tumorigenicity. Therefore, understanding the molecular mechanisms governed by SOX2 in GSCs is crucial to developing targeted therapies against this resistant cell population. In this study, we identified and validated a miRNA profile regulated by SOX2 in GSCs. Among these miRNAs, miR-425-5p emerged as a significant robust candidate for further study. The expression of miR-425-5p was significantly enriched in clinical GBM specimens compared with a human brain reference sample and showed a positive correlation with SOX2 expression. Using a combination of in silico analyses and molecular approaches, we show that SOX2 binds to the promoter of miR-425-5p. Loss of function studies show that repressing miR-425-5p expression in multiple GSCs inhibited neurosphere renewal and induced cell death. More importantly, miR-425-5p inhibition extended survival in an orthotopic GBM mouse model. Finally, combining several bioinformatics platforms with biological endpoints in multiple GSC lines, we identified FOXJ3 and RAB31 as high confidence miR-425-5p target genes. Our findings show that miR-425-5p is a GBM stem cell survival factor and that miR-425-5p inhibition function is a potential strategy for treating GBM.
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Affiliation(s)
- Arlet María Acanda de la Rocha
- The Health Research Institute of Navarra (IDISNA), Spain
- Program in Solid Tumors and Biomarkers, Foundation for the Applied Medical Research, Spain
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Spain
- Department of Environmental Health Sciences. Robert Stempel College of Public Health & Social Work. Florida International University, USA
| | - Marisol González-Huarriz
- The Health Research Institute of Navarra (IDISNA), Spain
- Program in Solid Tumors and Biomarkers, Foundation for the Applied Medical Research, Spain
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Spain
| | - Elizabeth Guruceaga
- The Health Research Institute of Navarra (IDISNA), Spain
- Bioinformatics Unit, Center for Applied Medical Research, Pamplona, Spain
| | - Nicole Mihelson
- Hugo W Moser Research Institute at Kennedy Krieger, Baltimore, MD, USA
| | - Sonia Tejada-Solís
- The Health Research Institute of Navarra (IDISNA), Spain
- Program in Solid Tumors and Biomarkers, Foundation for the Applied Medical Research, Spain
- Department of Neurosurgery, University Hospital of Navarra, Pamplona, Spain
| | - Ricardo Díez-Valle
- The Health Research Institute of Navarra (IDISNA), Spain
- Program in Solid Tumors and Biomarkers, Foundation for the Applied Medical Research, Spain
- Department of Neurosurgery, University Hospital of Navarra, Pamplona, Spain
| | - Naiara Martínez-Vélez
- The Health Research Institute of Navarra (IDISNA), Spain
- Program in Solid Tumors and Biomarkers, Foundation for the Applied Medical Research, Spain
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Spain
| | - Juan Fueyo
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Candelaria Gomez-Manzano
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Marta M. Alonso
- The Health Research Institute of Navarra (IDISNA), Spain
- Program in Solid Tumors and Biomarkers, Foundation for the Applied Medical Research, Spain
- Department of Pediatrics, University Hospital of Navarra, Pamplona, Spain
| | - John Laterra
- Hugo W Moser Research Institute at Kennedy Krieger, Baltimore, MD, USA
- Department of Neurology, The Johns Hopkins School of Medicine, Baltimore, MD, USA
- Department of Neuroscience, The Johns Hopkins School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Hernando López-Bertoni
- Hugo W Moser Research Institute at Kennedy Krieger, Baltimore, MD, USA
- Department of Neurology, The Johns Hopkins School of Medicine, Baltimore, MD, USA
- Corresponding author: Hernando López-Bertoni, Hugo W Moser Research Institute at Kennedy Krieger, Baltimore, USA,
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Profiling cytotoxic microRNAs in pediatric and adult glioblastoma cells by high-content screening, identification, and validation of miR-1300. Oncogene 2020; 39:5292-5306. [PMID: 32555332 PMCID: PMC7378045 DOI: 10.1038/s41388-020-1360-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 05/20/2020] [Accepted: 06/05/2020] [Indexed: 01/05/2023]
Abstract
MicroRNAs play an important role in the regulation of mRNA translation and have therapeutic potential in cancer and other diseases. To profile the landscape of microRNAs with significant cytotoxicity in the context of glioblastoma (GBM), we performed a high-throughput screen in adult and pediatric GBM cells using a synthetic oligonucleotide library representing all known human microRNAs. Bioinformatics analysis was used to refine this list and the top seven microRNAs were validated in a larger panel of GBM cells using state-of-the-art in vitro assays. The cytotoxic effect of our most relevant candidate was assessed in a preclinical model. Our screen identified ~100 significantly cytotoxic microRNAs with 70% concordance between cell lines. MicroRNA-1300 (miR-1300) was the most potent and robust candidate. We observed a striking binucleated phenotype in miR-1300 transfected cells due to cytokinesis failure followed by apoptosis. This was also observed in two stem-like patient-derived cultures. We identified the physiological role of miR-1300 as a regulator of endomitosis in megakaryocyte differentiation where blockade of cytokinesis is an essential step. In GBM cells, where miR-1300 is normally not expressed, the oncogene Epithelial Cell Transforming 2 (ECT2) was validated as a direct key target. ECT2 siRNA phenocopied the effects of miR-1300, and ECT2 overexpression led to rescue of miR-1300 induced binucleation. We showed that ectopic expression of miR-1300 led to decreased tumor growth in an orthotopic GBM model. Our screen provides a resource for the neuro-oncology community and identified miR-1300 as a novel regulator of endomitosis with translatable potential for therapeutic application.
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A triple-combination nanotechnology platform based on multifunctional RNA hydrogel for lung cancer therapy. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9673-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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59
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Buruiană A, Florian ȘI, Florian AI, Timiș TL, Mihu CM, Miclăuș M, Oșan S, Hrapșa I, Cataniciu RC, Farcaș M, Șușman S. The Roles of miRNA in Glioblastoma Tumor Cell Communication: Diplomatic and Aggressive Negotiations. Int J Mol Sci 2020; 21:ijms21061950. [PMID: 32178454 PMCID: PMC7139390 DOI: 10.3390/ijms21061950] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/05/2020] [Accepted: 03/06/2020] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma (GBM) consists of a heterogeneous collection of competing cellular clones which communicate with each other and with the tumor microenvironment (TME). MicroRNAs (miRNAs) present various exchange mechanisms: free miRNA, extracellular vesicles (EVs), or gap junctions (GJs). GBM cells transfer miR-4519 and miR-5096 to astrocytes through GJs. Oligodendrocytes located in the invasion front present high levels of miR-219-5p, miR-219-2-3p, and miR-338-3p, all related to their differentiation. There is a reciprocal exchange between GBM cells and endothelial cells (ECs) as miR-5096 promotes angiogenesis after being transferred into ECs, whereas miR-145-5p acts as a tumor suppressor. In glioma stem cells (GSCs), miR-1587 and miR-3620-5p increase the proliferation and miR-1587 inhibits the hormone receptor co-repressor-1 (NCOR1) after EVs transfers. GBM-derived EVs carry miR-21 and miR-451 that are up-taken by microglia and monocytes/macrophages, promoting their proliferation. Macrophages release EVs enriched in miR-21 that are transferred to glioma cells. This bidirectional miR-21 exchange increases STAT3 activity in GBM cells and macrophages, promoting invasion, proliferation, angiogenesis, and resistance to treatment. miR-1238 is upregulated in resistant GBM clones and their EVs, conferring resistance to adjacent cells via the CAV1/EGFR signaling pathway. Decrypting these mechanisms could lead to a better patient stratification and the development of novel target therapies.
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Affiliation(s)
- Andrei Buruiană
- Department of Medical Genetics, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (A.B.); (S.O.); (I.H.); (R.C.C.); (M.F.)
| | - Ștefan Ioan Florian
- Department of Neurosurgery, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (Ș.I.F.); (A.I.F.)
- Department of Neurosurgery, Emergency County Hospital, 3-5 Clinicilor Street, 400006 Cluj-Napoca, Romania
| | - Alexandru Ioan Florian
- Department of Neurosurgery, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (Ș.I.F.); (A.I.F.)
- Department of Neurosurgery, Emergency County Hospital, 3-5 Clinicilor Street, 400006 Cluj-Napoca, Romania
| | - Teodora-Larisa Timiș
- Department of Physiology, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania;
| | - Carmen Mihaela Mihu
- Department of Morphological Sciences-Histology, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania;
| | - Maria Miclăuș
- Department of Medical Genetics, Emergency Hospital for Children, 68 Moților Street, 400370 Cluj-Napoca, Romania;
| | - Sergiu Oșan
- Department of Medical Genetics, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (A.B.); (S.O.); (I.H.); (R.C.C.); (M.F.)
| | - Iona Hrapșa
- Department of Medical Genetics, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (A.B.); (S.O.); (I.H.); (R.C.C.); (M.F.)
| | - Radu Constantin Cataniciu
- Department of Medical Genetics, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (A.B.); (S.O.); (I.H.); (R.C.C.); (M.F.)
| | - Marius Farcaș
- Department of Medical Genetics, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (A.B.); (S.O.); (I.H.); (R.C.C.); (M.F.)
- Department of Genetics, IMOGEN Research Center, Louis Pasteur Street, 400349 Cluj-Napoca, Romania
| | - Sergiu Șușman
- Department of Morphological Sciences-Histology, Iuliu Hațieganu University of Medicine and Pharmacy, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania;
- Department of Pathology, IMOGEN Research Center, Louis Pasteur Street, 400349 Cluj-Napoca, Romania
- Correspondence:
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Hou W, Zhu X, Liu J, Ma J. Inhibition of miR-153 ameliorates ischemia/reperfusion-induced cardiomyocytes apoptosis by regulating Nrf2/HO-1 signaling in rats. Biomed Eng Online 2020; 19:15. [PMID: 32143647 PMCID: PMC7059292 DOI: 10.1186/s12938-020-0759-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 02/23/2020] [Indexed: 01/13/2023] Open
Abstract
Background Previous in vitro studies demonstrated that suppression of microRNAs might protect cardiomyocytes and neurons against oxygen–glucose deprivation and reoxygenation (OGD/R)-induced cell apoptosis. However, whether the protective effect of miR-153-inhibition on cardiomyocytes can be observed in the animal model is unknown. We aimed to address this question using a rat model of ischemia–reperfusion (I/R). Methods Rats were received the intramyocardial injection of saline or adenovirus-carrying target or control gene, and the rats were subjected to ischemia/reperfusion (I/R) treatment. The effects of miR-153 on I/R-induced inflammatory response and oxidative stress in the rat model were assessed using various assays. Results We found that suppression of miR-153 decreased cleaved caspase-3 and Bcl-2-associated X (Bax) expression, and increased B cell lymphoma 2 (Bcl-2) expression. We further confirmed that Nuclear transcription factor erythroid 2-like 2 (Nrf2) is a functional target of miR-153, and Nrf2/Heme oxygenase-1 (HO-1) signaling was involved in miR-153-regulated I/R-induced cardiomyocytes apoptosis. Inhibition of miR-153 reduced I/R-induced inflammatory response and oxidative stress in rat myocardium. Conclusion Suppression of miR-153 exerts a cardioprotective effect against I/R-induced injury through the regulation of Nrf2/HO-1 signaling, suggesting that targeting miR-153, Nrf2, or both may serve as promising therapeutic targets for the alleviation of I/R-induced injury.
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Affiliation(s)
- Wei Hou
- Department of Emergency, Yidu Central Hospital of Wei Fang, No.4138, South Linglongshan Road, Weifang, 262500, Shandong, China
| | - Xianting Zhu
- Department of Nursing, Yidu Central Hospital of Wei Fang, No.4138, South Linglongshan Road, Weifang, 262500, Shandong, China
| | - Juan Liu
- Department of Pediatrics, Ward 1, Yidu Central Hospital of Wei Fang, No. 4138, South Linglongshan Road, Weifang, 262500, Shandong, China
| | - Jiaguo Ma
- Department of Cardiology, Qing Zhou Traditional Chinese Hospital, No. 2727, Haidai Middle Road, Weifang, 262500, Shandong, China.
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Hypoxia-induced lncRNA PDIA3P1 promotes mesenchymal transition via sponging of miR-124-3p in glioma. Cell Death Dis 2020; 11:168. [PMID: 32127518 PMCID: PMC7054337 DOI: 10.1038/s41419-020-2345-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 12/12/2022]
Abstract
Hypoxia is a critical factor in the malignant progression of glioma, especially for the highly-invasive mesenchymal (MES) subtype. But the detailed mechanisms in hypoxia-induced glioma MES transition remain elusive. Pseudogenes, once considered to be non-functional relics of evolution, are emerging as a critical factor in human tumorigenesis and progression. Here, we investigated the clinical significance, biological function, and mechanisms of protein disulfide isomerase family A member 3 pseudogene 1 (PDIA3P1) in hypoxia-induced glioma MES transition. In this study, we found that PDIA3P1 expression was closely related to tumor degree, transcriptome subtype, and prognosis in glioma patients. Enrichment analysis found that high PDIA3P1 expression was associated with epithelial-mesenchymal transition, extracellular matrix (ECM) disassembly, and angiogenesis. In vitro study revealed that overexpression of PDIA3P1 enhanced the migration and invasion capacity of glioma cells, while knockdown of PDIA3P1 induced the opposite effect. Further studies revealed that PDIA3P1 functions as a ceRNA, sponging miR-124-3p to modulate RELA expression and activate the downstream NF-κB pathway, thus promoting the MES transition of glioma cells. In addition, Hypoxia Inducible Factor 1 was confirmed to directly bind to the PDIA3P1 promotor region and activate its transcription. In conclusion, PDIA3P1 is a crucial link between hypoxia and glioma MES transition through the PDIA3P1-miR-124-3p-RELA axis, which may serve as a prognostic indicator and potential therapeutic target for glioma treatment.
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Shi Z, Zhang K, Zhou H, Jiang L, Xie B, Wang R, Xia W, Yin Y, Gao Z, Cui D, Zhang R, Xu S. Increased miR-34c mediates synaptic deficits by targeting synaptotagmin 1 through ROS-JNK-p53 pathway in Alzheimer's Disease. Aging Cell 2020; 19:e13125. [PMID: 32092796 PMCID: PMC7059146 DOI: 10.1111/acel.13125] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 01/27/2020] [Accepted: 02/04/2020] [Indexed: 12/22/2022] Open
Abstract
Alzheimer's disease (AD) and cancer have inverse relationship in many aspects. Some tumor suppressors, including miR‐34c, are decreased in cancer but increased in AD. The upstream regulatory pathways and the downstream mechanisms of miR‐34c in AD remain to be investigated. The expression of miR‐34c was detected by RT–qPCR in oxidative stressed neurons, hippocampus of SAMP8 mice, or serum of patients with amnestic mild cognitive impairment (aMCI). Dual luciferase assay was performed to confirm the binding sites of miR‐34c in its target mRNA. The Morris water maze (MWM) was used to evaluate learning and memory in SAMP8 mice administrated with miR‐34c antagomir (AM34c). Golgi staining was used to evaluate the synaptic function and structure. The dramatically increased miR‐34c was mediated by ROS‐JNK‐p53 pathway and negatively regulated synaptotagmin 1 (SYT1) expression by targeting the 3′‐untranslated region (3′‐UTR) of syt1 in AD. The expression of SYT1 protein was reduced by over expression of miR‐34c in the HT‐22 cells and vice versa. Administration of AM34c by the third ventricle injection or intranasal delivery markedly increased the brain levels of SYT1 and ameliorated the cognitive function in SAMP8 mice. The serum miR‐34c was significantly increased in patients with aMCI and might be a predictive biomarker for diagnosis of aMCI. These results indicated that increased miR‐34c mediated synaptic and memory deficits by targeting SYT1 through ROS‐JNK‐p53 pathway and the miR‐34c/SYT1 pathway could be considered as a promising novel therapeutic target for patients with AD.
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Affiliation(s)
- Zhongli Shi
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
| | - Kaixia Zhang
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Huimin Zhou
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
| | - Lei Jiang
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
| | - Bing Xie
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Ruiyuan Wang
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Wenzhen Xia
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Yajuan Yin
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Zhaoyu Gao
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Dongsheng Cui
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
| | - Rui Zhang
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
| | - Shunjiang Xu
- Central Laboratory The First Hospital of Hebei Medical University Shijiazhuang China
- Hebei International Joint Research Center for Brain Science Shijiazhuang China
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Abstract
Even though the treatment of childhood cancer has evolved significantly in recent decades, aggressive central nervous system (CNS) tumors are still a leading cause of morbidity and mortality in this population. Consequently, the identification of molecular targets that can be incorporated into diagnostic practice, effectively predict prognosis, follow treatment response, and materialize into potential targeted therapeutic approaches are still warranted. Since the first evidence of the participation of miRNAs in cancer development and progression 20 years ago, notable progress has been made in the basic understanding of the contribution of their dysregulation as epigenetic driver of tumorigenesis. Nevertheless, among the plethora of articles in the literature, microRNA profiling of pediatric tumors are scarce. This article gives an overview of the recent advances in the diagnostic/prognostic potential of miRNAs in a selection of pediatric CNS tumors: medulloblastoma, ependymoma, pilocytic astrocytoma, glioblastoma, diffuse intrinsic pontine glioma, atypical teratoid/rhabdoid tumors, and choroid plexus tumors.
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Cheng M, Zhang ZW, Ji XH, Xu Y, Bian E, Zhao B. Super-enhancers: A new frontier for glioma treatment. Biochim Biophys Acta Rev Cancer 2020; 1873:188353. [PMID: 32112817 DOI: 10.1016/j.bbcan.2020.188353] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/21/2020] [Accepted: 02/21/2020] [Indexed: 01/17/2023]
Abstract
Glioma is the most common primary malignant tumor in the human brain. Although there are a variety of treatments, such as surgery, radiation and chemotherapy, glioma is still an incurable disease. Super-enhancers (SEs) are implicated in the control of tumor cell identity, and they promote oncogenic transcription, which supports tumor cells. Inhibition of the SE complex, which is required for the assembly and maintenance of SEs, may repress oncogenic transcription and impede tumor growth. In this review, we discuss the unique characteristics of SEs compared to typical enhancers, and we summarize the recent advances in the understanding of their properties and biological role in gene regulation. Additionally, we highlight that SE-driven lncRNAs, miRNAs and genes are involved in the malignant phenotype of glioma. Most importantly, the application of SE inhibitors in different cancer subtypes has introduced new directions in glioma treatment.
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Affiliation(s)
- Meng Cheng
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China
| | - Zheng Wei Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China
| | - Xing Hu Ji
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China
| | - Yadi Xu
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China
| | - Erbao Bian
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China.
| | - Bing Zhao
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China.
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O’Neill CP, Dwyer RM. Nanoparticle-Based Delivery of Tumor Suppressor microRNA for Cancer Therapy. Cells 2020; 9:E521. [PMID: 32102476 PMCID: PMC7072816 DOI: 10.3390/cells9020521] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/18/2020] [Accepted: 02/21/2020] [Indexed: 12/12/2022] Open
Abstract
Improved understanding of microRNA expression and function in cancer has revealed a range of microRNAs that negatively regulate many oncogenic pathways, thus representing potent tumor suppressors. Therapeutic targeting of the expression of these microRNAs to the site of tumors and metastases provides a promising avenue for cancer therapy. To overcome challenges associated with microRNA degradation, transient expression and poor targeting, novel nanoparticles are being developed and employed to shield microRNAs for tumor-targeted delivery. This review focuses on studies describing a variety of both natural and synthetic nanoparticle delivery vehicles that have been engineered for tumor-targeted delivery of tumor suppressor microRNAs in vivo.
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Affiliation(s)
- Clodagh P. O’Neill
- Discipline of Surgery, Lambe Institute for Translational Research, National University of Ireland Galway, H91 YR71 Galway, Ireland;
| | - Róisín M. Dwyer
- Discipline of Surgery, Lambe Institute for Translational Research, National University of Ireland Galway, H91 YR71 Galway, Ireland;
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland Galway, H91 W2TY Galway, Ireland
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66
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Yang J, Shi Z, Liu R, Wu Y, Zhang X. Combined-therapeutic strategies synergistically potentiate glioblastoma multiforme treatment via nanotechnology. Theranostics 2020; 10:3223-3239. [PMID: 32194864 PMCID: PMC7053190 DOI: 10.7150/thno.40298] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 12/06/2019] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma multiforme (GBM) is a highly aggressive and devastating brain tumor characterized by poor prognosis and high rates of recurrence. Numerous therapeutic strategies and delivery systems are developed to prolong the survival time. They exhibit enhanced therapeutic effects in animal models, whereas few of them is applied in clinical trials. Taking into account the drug-resistance and high recurrence of GBM, combined-therapeutic strategies are exploited to maximize therapeutic efficacy. The combined therapies demonstrate superior results than those of single therapies against GBM. The co-therapeutic agents, the timing of therapeutic strategies and the delivery systems greatly affect the overall outcomes. Herein, the current advances in combined therapies for glioblastoma via systemic administration are exhibited in this review. And we will discuss the pros and cons of these combined-therapeutic strategies via nanotechnology, and provide the guidance for developing rational delivery systems to optimize treatments against GBM and other malignancies in central nervous system.
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Semonche A, Shah AH, Ivan ME, Komotar RJ. Towards a microRNA-based Gene Therapy for Glioblastoma. Neurosurgery 2020; 85:E210-E211. [PMID: 31304544 DOI: 10.1093/neuros/nyz166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 02/25/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- Alexa Semonche
- Department of Neurological Surgery University of Miami Miller School of Medicine Miami, Florida
| | - Ashish H Shah
- Department of Neurological Surgery University of Miami Miller School of Medicine Miami, Florida
| | - Michael E Ivan
- Department of Neurological Surgery University of Miami Miller School of Medicine Miami, Florida
| | - Ricardo J Komotar
- Department of Neurological Surgery University of Miami Miller School of Medicine Miami, Florida
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PRAS40 hyperexpression promotes hepatocarcinogenesis. EBioMedicine 2020; 51:102604. [PMID: 31901857 PMCID: PMC6950779 DOI: 10.1016/j.ebiom.2019.102604] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/03/2019] [Accepted: 12/12/2019] [Indexed: 12/16/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most common cancers, whereas the molecular mechanism remains largely unknown. PRAS40 (encoded by AKT1S1) phosphorylation was increased in human melanoma, prostate cancer and lung cancer specimens, which was considered as the results of Akt activation. However the mechanism in detail and its role in HCC stay elusive. Methods PRAS40 expression and phosphorylation were analyzed in HCC specimens, and the survival rates of patients were investigated. Functional analyses of PRAS40 in HCC were performed in vivo and in vitro. The miR-124-3p binding sites in PRAS40 were investigated using luciferase assay. MiR-124-3p expression in HCC specimens was examined by In Situ hybridization, and the correlation to PRAS40 level was evaluated. Findings The phosphorylation, protein and mRNA levels of PRAS40 were increased significantly in HCC specimens from our cohorts and TCGA database, which was positively correlated to the poor prognosis of HCC patients. Compared to Akt1s1+/+ mice, hepatocarcinogenesis was suppressed in Akt1s1−/− mice, and the activation of Akt was impaired. PRAS40 depletion resulted in the inhibition of HCC cellular proliferation. Tumor suppressor miR-124-3p was found to downregulate PRAS40 expression by targeting its 3′UTR. MiR-124-3p levels were inversely correlated to PRAS40 protein and phosphorylation levels in HCC specimens. The proliferation inhibition by miR-124-3p mimics was partially reversed by exogenous PRAS40 introduction in HCC cells. Interpretation PRAS40 hyperexpression induced by loss of miR-124-3p contributes to PRAS40 hyperphosphorylation and hepatocarcinogenesis. These results could be expected to offer novel clues for understanding hepatocarcinogenesis and developing approaches.
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Meng X, Deng Y, Lv Z, Liu C, Guo Z, Li Y, Liu H, Xie B, Jin Z, Lin F, Zhu H. LncRNA SNHG5 Promotes Proliferation of Glioma by Regulating miR-205-5p/ZEB2 Axis. Onco Targets Ther 2019; 12:11487-11496. [PMID: 31920337 PMCID: PMC6939796 DOI: 10.2147/ott.s228439] [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: 08/23/2019] [Accepted: 12/03/2019] [Indexed: 12/21/2022] Open
Abstract
Background Glioma is a common primary brain tumor with extremely poor prognosis outcomes. Increasing evidences have proved the relation between lncRNAs and glioma onset and progression. LncRNA SNHG5 involves in the biological activities of tumor cells, such as proliferation, migration and metastasis. Nevertheless, it is still necessary to explain the molecular mechanism and biofunction of SNHG5 in glioma. Materials and methods Quantitative real-time PCR (qRT-PCR) was performed to analyze expressions of SNHG5, miR-205-5p and ZEB2 in tumor tissues and cell lines. The cell counting kit-8 (CCK-8) assay, plate and soft agar colony formation assays were performed to evaluate cell proliferation ability. RNA immunoprecipitation assay and dual-luciferase reporter assay were used to confirm the interaction among SNHG5, miR-205-5p and ZEB2. The protein level of ZEB2 was measured by Western blot. Results Based on our findings, compared with normal tissues, the elevated expression of SNHG5 and decreased expression of miR-205-5p were observed in glioma tissues. The downregulation of SNHG5 exerted an obvious inhibitory effect on glioma cells in terms of their proliferation. With regard to the underlying mechanism, SNHG5 presented a direct inhibitory influence on miR-205-5p which targeted to the 3'-UTR region of zinc finger E-box binding homeobox 2 (ZEB2) mRNA. As a competing endogenous RNA (ceRNA), SNHG5 sponged miR-205-5p, regulating the expression of ZEB2 thereby. Conclusion These discoveries indicate that SNHG5 promotes proliferation of glioma by regulating miR-205-5p/ZEB2 axis.
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Affiliation(s)
- Xiangrui Meng
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Yanyao Deng
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, People's Republic of China
| | - Zhicheng Lv
- Department of Neurosurgery, Chenzhou First People's Hospital, Chenzhou, Hunan, People's Republic of China
| | - Chao Liu
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, People's Republic of China
| | - Ziqing Guo
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, People's Republic of China
| | - Yuan Li
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, People's Republic of China
| | - Hua Liu
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, People's Republic of China
| | - Bing Xie
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, People's Republic of China
| | - Ziqi Jin
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, People's Republic of China
| | - Fangbo Lin
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, People's Republic of China
| | - Hongwei Zhu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
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Li N, Liu L, Liu Y, Luo S, Song Y, Fang B. miR-144-3p Suppresses Osteogenic Differentiation of BMSCs from Patients with Aplastic Anemia through Repression of TET2. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 19:619-626. [PMID: 31945725 PMCID: PMC6965517 DOI: 10.1016/j.omtn.2019.12.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 12/30/2022]
Abstract
Reduced osteogenic capacity of bone marrow mesenchymal stem cells (BMSCs) has been causally linked to the development of aplastic anemia. In this work, we aimed to identify novel microRNAs (miRNAs) that participate in the regulation of differentiation of BMSCs from patients with aplastic anemia. We show that miR-144-3p is significantly upregulated in BMSCs from patients with aplastic anemia relative to control equivalents. Depletion of miR-144-3p significantly enhances osteogenic differentiation of BMSCs from patients with aplastic anemia after culturing in osteogenesis-inducing medium. Conversely, overexpression of miR-144-3p blocks osteogenic differentiation of BMSCs. Mechanistically, miR-144-3p negatively regulates the expression of ten-eleven translocation 2 (TET2) in BMSCs. Reduced TET2 expression is associated with a significant decrease in global 5-hydroxymethyl-cytosine (5hmC) levels and osteogenic gene expression. Knockdown of miR-144-3p elevates the expression of TET2 and total 5hmC levels in BMSCs. Silencing of TET2 inhibits the osteogenic differentiation of BMSCs. Overexpression of TET2 reverses miR-144-3p-mediated inhibition of osteogenesis. In addition, there is a significant negative correlation between the expression of miR-144-3p and TET2 in BMSCs from patients with aplastic anemia. Overall, miR-144-3p impairs the osteogenic capacity of BMSCs from patients with aplastic anemia through repression of TET2. Therefore, the targeting of miR-144-3p may be a therapeutic strategy against aplastic anemia.
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Affiliation(s)
- Ning Li
- Department of Oncology, Henan Cancer Hospital, Henan Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Lina Liu
- Henan Institute of Haematology, Department of Hematology, Henan Cancer Hospital, Henan Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Yuzhang Liu
- Henan Institute of Haematology, Department of Hematology, Henan Cancer Hospital, Henan Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Suxia Luo
- Department of Oncology, Henan Cancer Hospital, Henan Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Yongping Song
- Henan Institute of Haematology, Department of Hematology, Henan Cancer Hospital, Henan Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou, China.
| | - Baijun Fang
- Henan Institute of Haematology, Department of Hematology, Henan Cancer Hospital, Henan Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou, China.
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Bhaskaran V, Yao Y, Bei F, Peruzzi P. Engineering, delivery, and biological validation of artificial microRNA clusters for gene therapy applications. Nat Protoc 2019; 14:3538-3553. [PMID: 31748752 PMCID: PMC7089775 DOI: 10.1038/s41596-019-0241-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022]
Abstract
The cellular machinery regulating microRNA biogenesis and maturation relies on a small number of simple steps and minimal biological requirements and is broadly conserved in all eukaryotic cells. The same holds true in disease. This allows for a substantial degree of freedom in the engineering of transgenes capable of simultaneously expressing multiple microRNAs of choice, allowing a more comprehensive modulation of microRNA landscapes, the study of their functional interaction, and the possibility of using such synergism for gene therapy applications. We have previously engineered a transgenic cluster of functionally associated microRNAs to express a module of suppressed microRNAs in brain cancer for therapeutic purposes. Here, we provide a detailed protocol for the design, cloning, delivery, and utilization of such artificial microRNA clusters for gene therapy purposes. In comparison with other protocols, our strategy effectively decreases the requirements for molecular cloning, because the nucleic acid sequence encoding the combination of the desired microRNAs is designed and validated in silico and then directly synthesized as DNA that is ready for subcloning into appropriate delivery vectors, for both in vitro and in vivo use. Sequence design and engineering require 4-5 h. Synthesis of the resulting DNA sequence requires 4-6 h. This protocol is quick and flexible and does not require special laboratory equipment or techniques, or multiple cloning steps. It can be easily executed by any graduate student or technician with basic molecular biology knowledge.
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Affiliation(s)
- Vivek Bhaskaran
- Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA
| | - Yizheng Yao
- Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA
| | - Fengfeng Bei
- Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA
| | - Pierpaolo Peruzzi
- Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA.
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Liu HW, Lee PM, Bamodu OA, Su YK, Fong IH, Yeh CT, Chien MH, Kan IH, Lin CM. Enhanced Hsa-miR-181d/p-STAT3 and Hsa-miR-181d/p-STAT5A Ratios Mediate the Anticancer Effect of Garcinol in STAT3/5A-Addicted Glioblastoma. Cancers (Basel) 2019; 11:cancers11121888. [PMID: 31783691 PMCID: PMC6966688 DOI: 10.3390/cancers11121888] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/16/2019] [Accepted: 11/22/2019] [Indexed: 12/12/2022] Open
Abstract
Background: Glioblastoma (GBM), a malignant grade IV tumor, is the most malignant brain tumor due to its hyper-proliferative and apoptosis-evading characteristics. The signal transducer and activators of transcription (STAT) family genes, including STAT3 and STAT5A, have been indicated to play important roles in GBM progression. Increasing number of reports suggest that garcinol, a polyisoprenylated benzophenone and major bioactive component of Garcinia indica contains potent anti-cancer activities. Material and Methods: The present study investigated the anti-GBM effects of garcinol, focusing on the STAT3/STAT5A activation, using a combination of bioinformatics, in vitro, and ex vivo assays. Results: Our bioinformatics analysis of The Cancer Genome Atlas (TCGA)–GBM cohort (n = 173) showed that STAT3 and STAT5A are preferentially elevated in primary and recurrent GBM, compared to non-tumor brain tissues, and is significantly correlated with reduced overall survival. In support, our immunohistochemical staining of a GBM cohort (n = 45) showed an estimated 5.3-fold (p < 0.001) elevation in STAT3 and STAT5A protein expression in primary and recurrent GBM versus the non-tumor group. In vitro, garcinol treatment significantly suppressed the proliferative, invasive, and migratory potential of U87MG or GBM8401 cells, dose-dependently. In addition, garcinol anticancer effect significantly attenuated the GBM stem cell-like phenotypes, as reflected by diminished ability of U87MG or GBM8401 to form colonies and tumorspheres and suppressed expression of OCT4 and SOX2. Furthermore, analysis on GBM transcriptome revealed an inverse correlation between the level of STAT3/5A and hsa-miR-181d. Garcinol-mediated anti-GBM effects were associated with an increased hsa-miR-181d/STAT3 and hsa-miR-181d/5A ratio. The results were further verified in vivo using U87MG mouse xenograft model where administration of garcinol significantly inhibited tumor growth. Conclusions: We present evidence of anti-GBM efficacy of garcinol mediated by enhancing the hsa-miR-181d/STAT3 and hsa-miR-181d/5A ratios in GBM cells. Our findings suggest a potential new therapeutic agent for combating aggressive GBM.
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Affiliation(s)
- Heng-Wei Liu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; (H.-W.L.); (Y.-K.S.); (C.-T.Y.); (M.-H.C.)
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan;
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan;
| | - Peter Mingjui Lee
- Department of Clinical Oncology, College of Medicine, California North State University, Elk Grove, CA 95757, USA;
| | - Oluwaseun Adebayo Bamodu
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan;
- Department of Hematology and Oncology, Cancer Center, Taipei Medical University—Shuang Ho Hospital, New Taipei City 235, Taiwan
- Department of Medical Research and Education, Taipei Medical University—Shuang Ho Hospital, New Taipei City 235, Taiwan
| | - Yu-Kai Su
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; (H.-W.L.); (Y.-K.S.); (C.-T.Y.); (M.-H.C.)
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan;
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan;
| | - Iat-Hang Fong
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan;
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan;
| | - Chi-Tai Yeh
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; (H.-W.L.); (Y.-K.S.); (C.-T.Y.); (M.-H.C.)
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan;
- Department of Hematology and Oncology, Cancer Center, Taipei Medical University—Shuang Ho Hospital, New Taipei City 235, Taiwan
- Department of Medical Research and Education, Taipei Medical University—Shuang Ho Hospital, New Taipei City 235, Taiwan
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology, Hsinchu City 30015, Taiwan
| | - Ming-Hsien Chien
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; (H.-W.L.); (Y.-K.S.); (C.-T.Y.); (M.-H.C.)
| | - I-Hung Kan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; (H.-W.L.); (Y.-K.S.); (C.-T.Y.); (M.-H.C.)
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan;
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan;
- Correspondence: (I.-H.K.); (C.-M.L.); Tel.: +886-2-2490088 (ext. 8881) (I.-H.K.)
| | - Chien-Min Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; (H.-W.L.); (Y.-K.S.); (C.-T.Y.); (M.-H.C.)
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Division of Neurosurgery, Department of Surgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan;
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 11031, Taiwan;
- Correspondence: (I.-H.K.); (C.-M.L.); Tel.: +886-2-2490088 (ext. 8881) (I.-H.K.)
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To KKW, Fong W, Tong CWS, Wu M, Yan W, Cho WCS. Advances in the discovery of microRNA-based anticancer therapeutics: latest tools and developments. Expert Opin Drug Discov 2019; 15:63-83. [PMID: 31739699 DOI: 10.1080/17460441.2020.1690449] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Introduction: MicroRNAs (miRNAs) are small endogenous non-coding RNAs that repress the expression of their target genes by reducing mRNA stability and/or inhibiting translation. miRNAs are known to be aberrantly regulated in cancers. Modulators of miRNA (mimics and antagonists) have emerged as novel therapeutic tools for cancer treatment.Areas covered: This review summarizes the various strategies that have been applied to correct the dysregulated miRNA in cancer cells. The authors also discuss the recent advances in the technical development and preclinical/clinical evaluation of miRNA-based therapeutic agents.Expert opinion: Application of miRNA-based therapeutics for cancer treatment is appealing because they are able to modulate multiple dysregulated genes and/or signaling pathways in cancer cells. Major obstacles hindering their clinical development include drug delivery, off-target effects, efficacious dose determination, and safety. Tumor site-specific delivery of novel miRNA therapeutics may help to minimize off-target effects and toxicity. Combination of miRNA therapeutics with other anticancer treatment modalities could provide a synergistic effect, thus allowing the use of lower dose, minimizing off-target effects, and improving the overall safety profile in cancer patients. It is critical to identify individual miRNAs with cancer type-specific and context-specific regulation of oncogenes and tumor-suppressor genes in order to facilitate the precise use of miRNA anticancer therapeutics.
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Affiliation(s)
- Kenneth K W To
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Winnie Fong
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Christy W S Tong
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Mingxia Wu
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wei Yan
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - William C S Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, China
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Bhaskaran V, Peruzzi P. Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy. J Vis Exp 2019:10.3791/60215. [PMID: 31633695 PMCID: PMC7158918 DOI: 10.3791/60215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The biological relevance of microRNAs (miRNAs) in health and disease significantly relies on specific combinations of many simultaneously deregulated miRNAs rather than the action of a single miRNA. The characterization of these specific miRNAs modules is a fundamental step in maximizing their use in therapy. This is extremely relevant because their combinatorial attributes can be practically exploited. Described here is a method to define a specific miRNA signature relevant to the control of oncogenic chromatin repressors in glioblastoma. The approach first defines a general group of miRNAs that are deregulated in tumors in comparison to normal tissue. The analysis is further refined by differential culture conditions, underscoring a subgroup of miRNAs that are co-expressed simultaneously during specific cellular states. Finally, the miRNAs that satisfy these filters are combined into an artificial polycistronic transgenes, which is based on a scaffold of naturally existing miRNA clusters genes, then used for overexpression of these miRNA modules into receiving cells.
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Affiliation(s)
- Vivek Bhaskaran
- Department of Neurosurgery, Brigham and Women's Hospital-Harvard Medical School
| | - Pierpaolo Peruzzi
- Department of Neurosurgery, Brigham and Women's Hospital-Harvard Medical School;
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75
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Diana A, Gaido G, Murtas D. MicroRNA Signature in Human Normal and Tumoral Neural Stem Cells. Int J Mol Sci 2019; 20:ijms20174123. [PMID: 31450858 PMCID: PMC6747235 DOI: 10.3390/ijms20174123] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/16/2019] [Accepted: 08/20/2019] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs, also called miRNAs or simply miR-, represent a unique class of non-coding RNAs that have gained exponential interest during recent years because of their determinant involvement in regulating the expression of several genes. Despite the increasing number of mature miRNAs recognized in the human species, only a limited proportion is engaged in the ontogeny of the central nervous system (CNS). miRNAs also play a pivotal role during the transition of normal neural stem cells (NSCs) into tumor-forming NSCs. More specifically, extensive studies have identified some shared miRNAs between NSCs and neural cancer stem cells (CSCs), namely miR-7, -124, -125, -181 and miR-9, -10, -130. In the context of NSCs, miRNAs are intercalated from embryonic stages throughout the differentiation pathway in order to achieve mature neuronal lineages. Within CSCs, under a different cellular context, miRNAs perform tumor suppressive or oncogenic functions that govern the homeostasis of brain tumors. This review will draw attention to the most characterizing studies dealing with miRNAs engaged in neurogenesis and in the tumoral neural stem cell context, offering the reader insight into the power of next generation miRNA-targeted therapies against brain malignances.
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Affiliation(s)
- Andrea Diana
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato (Cagliari), Italy.
| | - Giuseppe Gaido
- Department of Surgery, Cottolengo Mission Hospital Charia, 60200 Meru, Kenya
| | - Daniela Murtas
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato (Cagliari), Italy.
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76
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Morad G, Moses MA. Brainwashed by extracellular vesicles: the role of extracellular vesicles in primary and metastatic brain tumour microenvironment. J Extracell Vesicles 2019; 8:1627164. [PMID: 31275532 PMCID: PMC6598504 DOI: 10.1080/20013078.2019.1627164] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/08/2019] [Accepted: 05/31/2019] [Indexed: 12/12/2022] Open
Abstract
Brain malignancies, including primary and metastatic brain tumours, are often associated with high mortality, reflecting a need for more effective diagnostics and therapeutics. Despite the different cells of origin, primary and metastatic brain tumours share the same microenvironment, which affects the survival mechanisms adopted by these tumours. Elucidating the mechanisms by which primary and metastatic brain tumours interact with the brain microenvironment can uncover potential targets for clinical applications. Extracellular vesicles have been recognized as intercellular communicators that can contribute to cancer progression and have shown promise as potential cancer biomarkers and therapeutics. Here, we outline the contribution of extracellular vesicles in the tumour–microenvironment interactions in primary and metastatic brain tumours with the goal of providing a guide for future translational research in this area.
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Affiliation(s)
- Golnaz Morad
- The Vascular Biology Program and The Department of Surgery, Boston Children's Hospital, Boston, MA, USA.,Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Marsha A Moses
- The Vascular Biology Program and The Department of Surgery, Boston Children's Hospital, Boston, MA, USA.,Department of Surgery, Harvard Medical School, Boston, MA, USA
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77
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Petrescu GED, Sabo AA, Torsin LI, Calin GA, Dragomir MP. MicroRNA based theranostics for brain cancer: basic principles. J Exp Clin Cancer Res 2019; 38:231. [PMID: 31142339 PMCID: PMC6542029 DOI: 10.1186/s13046-019-1180-5] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 04/17/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Because of the complexity of the blood-brain barrier (BBB), brain tumors, especially the most common and aggressive primary malignant tumor type arising from the central nervous system (CNS), glioblastoma, remain an essential challenge regarding diagnostic and treatment. There are no approved circulating diagnostic or prognostic biomarkers, nor novel therapies like immune checkpoint inhibitors for glioblastoma, and chemotherapy brings only minimal survival benefits. The development of molecular biology led to the discovery of new potential diagnostic tools and therapeutic targets, offering the premise to detect patients at earlier stages and overcome the current poor prognosis. MAIN BODY One potential diagnostic and therapeutic breakthrough might come from microRNAs (miRNAs). It is well-known that miRNAs play a role in the initiation and development of various types of cancer, including glioblastoma. The review aims to answer the following questions concerning the role of RNA theranostics for brain tumors: (1) which miRNAs are the best candidates to become early diagnostic and prognostic circulating biomarkers?; (2) how to deliver the therapeutic agents in the CNS to overcome the BBB?; (3) which are the best methods to restore/inhibit miRNAs? CONCLUSIONS Because of the proven roles played by miRNAs in gliomagenesis and of their capacity to pass from the CNS tissue into the blood or cerebrospinal fluid (CSF), we propose miRNAs as ideal diagnostic and prognostic biomarkers. Moreover, recent advances in direct miRNA restoration (miRNA mimics) and miRNA inhibition therapy (antisense oligonucleotides, antagomirs, locked nucleic acid anti-miRNA, small molecule miRNA inhibitors) make miRNAs perfect candidates for entering clinical trials for glioblastoma treatment.
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Affiliation(s)
- George E. D. Petrescu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- Bagdasar-Arseni Clinical Emergency Hospital, Department of Neurosurgery, Bucharest, Romania
| | - Alexandru A. Sabo
- Marie Curie Emergency Clinical Hospital for Children, Bucharest, Romania
| | - Ligia I. Torsin
- Elias Clinical Emergency Hospital, Anaesthesiology and Critical Care Department, Bucharest, Romania
| | - George A. Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX USA
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX USA
| | - Mihnea P. Dragomir
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX USA
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78
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Kong X, Qi J, Yan Y, Chen L, Zhao Y, Fang Z, Fan J, Liu M, Liu Y. Comprehensive analysis of differentially expressed profiles of lncRNAs, mRNAs, and miRNAs in laryngeal squamous cell carcinoma in order to construct a ceRNA network and identify potential biomarkers. J Cell Biochem 2019; 120:17963-17974. [PMID: 31127661 DOI: 10.1002/jcb.29063] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/18/2019] [Accepted: 04/29/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Xinru Kong
- Clinical Medical College Weifang Medical University Weifang P.R. China
| | - Jixia Qi
- Clinical Medical College Weifang Medical University Weifang P.R. China
| | - Yao Yan
- Clinical Medical College Weifang Medical University Weifang P.R. China
| | - Liwei Chen
- Hainan Hospital of Chinese PLA General Hospital Sanya P.R. China
| | - Yali Zhao
- Central Lab Hainan Hospital of Chinese PLA General Hospital Sanya P.R. China
| | - Zhongju Fang
- Clinical Medical College Weifang Medical University Weifang P.R. China
| | - Junda Fan
- Hainan Hospital of Chinese PLA General Hospital Sanya P.R. China
| | - Mingbo Liu
- Hainan Hospital of Chinese PLA General Hospital Sanya P.R. China
- Clinical Medical Research Center for Otolaryngology Head and Neck Diseases of Hainan Province Sanya P.R. China
| | - Yehai Liu
- Department of Otorhinolaryngology, Head & Neck Surgery The First Affiliated Hospital of Anhui Medical University Hefei P.R. China
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79
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Peruzzi P, Bhaskaran V. MicroRNAs in Brain Cancer: Look at the Forest, Not at the Tree. J Exp Neurosci 2019; 13:1179069519839693. [PMID: 30956527 PMCID: PMC6442075 DOI: 10.1177/1179069519839693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 03/05/2019] [Indexed: 11/16/2022] Open
Abstract
Much is known about microRNA biology and their involvement in essentially any biological processes in eukaryotic cells, including cancer. Now, to take advantage of them in clinics, a change in perspective is needed and a reappraisal of their features is warranted to re-ignite interest and translational hype. As we recently reported, their strength is in numbers, size and simplicity.
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Affiliation(s)
- Pierpaolo Peruzzi
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Vivek Bhaskaran
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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80
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MicroRNA in Brain pathology: Neurodegeneration the Other Side of the Brain Cancer. Noncoding RNA 2019; 5:ncrna5010020. [PMID: 30813461 PMCID: PMC6468660 DOI: 10.3390/ncrna5010020] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/06/2019] [Accepted: 02/15/2019] [Indexed: 12/20/2022] Open
Abstract
The mammalian brain is made up of billions of neurons and supporting cells (glial cells), intricately connected. Molecular perturbations often lead to neurodegeneration by progressive loss of structure and malfunction of neurons, including their death. On the other side, a combination of genetic and cellular factors in glial cells, and less frequently in neurons, drive oncogenic transformation. In both situations, microenvironmental niches influence the progression of diseases and therapeutic responses. Dynamic changes that occur in cellular transcriptomes during the progression of developmental lineages and pathogenesis are controlled through a variety of regulatory networks. These include epigenetic modifications, signaling pathways, and transcriptional and post-transcriptional mechanisms. One prominent component of the latter is small non-coding RNAs, including microRNAs, that control the vast majority of these networks including genes regulating neural stemness, differentiation, apoptosis, projection fates, migration and many others. These cellular processes are also profoundly dependent on the microenvironment, stemness niche, hypoxic microenvironment, and interactions with associated cells including endothelial and immune cells. Significantly, the brain of all other mammalian organs expresses the highest number of microRNAs, with an additional gain in expression in the early stage of neurodegeneration and loss in expression in oncogenesis. However, a mechanistic explanation of the concept of an apparent inverse correlation between the odds of cancer and neurodegenerative diseases is only weakly developed. In this review, we thus will discuss widespread de-regulation of microRNAome observed in these two major groups of brain pathologies. The deciphering of these intricacies is of importance, as therapeutic restoration of pre-pathological microRNA landscape in neurodegeneration must not lead to oncogenesis and vice versa. We thus focus on microRNAs engaged in cellular processes that are inversely regulated in these diseases. We also aim to define the difference in microRNA networks between pro-survival and pro-apoptotic signaling in the brain.
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