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Venø MT, Reschke CR, Morris G, Connolly NMC, Su J, Yan Y, Engel T, Jimenez-Mateos EM, Harder LM, Pultz D, Haunsberger SJ, Pal A, Heller JP, Campbell A, Langa E, Brennan GP, Conboy K, Richardson A, Norwood BA, Costard LS, Neubert V, Del Gallo F, Salvetti B, Vangoor VR, Sanz-Rodriguez A, Muilu J, Fabene PF, Pasterkamp RJ, Prehn JHM, Schorge S, Andersen JS, Rosenow F, Bauer S, Kjems J, Henshall DC. A systems approach delivers a functional microRNA catalog and expanded targets for seizure suppression in temporal lobe epilepsy. Proc Natl Acad Sci U S A 2020; 117:15977-15988. [PMID: 32581127 PMCID: PMC7355001 DOI: 10.1073/pnas.1919313117] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Temporal lobe epilepsy is the most common drug-resistant form of epilepsy in adults. The reorganization of neural networks and the gene expression landscape underlying pathophysiologic network behavior in brain structures such as the hippocampus has been suggested to be controlled, in part, by microRNAs. To systematically assess their significance, we sequenced Argonaute-loaded microRNAs to define functionally engaged microRNAs in the hippocampus of three different animal models in two species and at six time points between the initial precipitating insult through to the establishment of chronic epilepsy. We then selected commonly up-regulated microRNAs for a functional in vivo therapeutic screen using oligonucleotide inhibitors. Argonaute sequencing generated 1.44 billion small RNA reads of which up to 82% were microRNAs, with over 400 unique microRNAs detected per model. Approximately half of the detected microRNAs were dysregulated in each epilepsy model. We prioritized commonly up-regulated microRNAs that were fully conserved in humans and designed custom antisense oligonucleotides for these candidate targets. Antiseizure phenotypes were observed upon knockdown of miR-10a-5p, miR-21a-5p, and miR-142a-5p and electrophysiological analyses indicated broad safety of this approach. Combined inhibition of these three microRNAs reduced spontaneous seizures in epileptic mice. Proteomic data, RNA sequencing, and pathway analysis on predicted and validated targets of these microRNAs implicated derepressed TGF-β signaling as a shared seizure-modifying mechanism. Correspondingly, inhibition of TGF-β signaling occluded the antiseizure effects of the antagomirs. Together, these results identify shared, dysregulated, and functionally active microRNAs during the pathogenesis of epilepsy which represent therapeutic antiseizure targets.
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Affiliation(s)
- Morten T Venø
- Interdisciplinary Nanoscience Centre, Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Cristina R Reschke
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Gareth Morris
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- Department of Clinical and Experimental Epilepsy, Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Niamh M C Connolly
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Junyi Su
- Interdisciplinary Nanoscience Centre, Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Yan Yan
- Interdisciplinary Nanoscience Centre, Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Tobias Engel
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Eva M Jimenez-Mateos
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Lea M Harder
- Center for Experimental Bioinformatics, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Dennis Pultz
- Center for Experimental Bioinformatics, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Stefan J Haunsberger
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Ajay Pal
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Janosch P Heller
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- Department of Clinical and Experimental Epilepsy, Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Aoife Campbell
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Elena Langa
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Gary P Brennan
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Karen Conboy
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Amy Richardson
- Department of Clinical and Experimental Epilepsy, Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Braxton A Norwood
- Department of Neuroscience, Expesicor Inc, Kalispell, MT 59901
- Diagnostics Development, FYR Diagnostics, Missoula, MT 59801
| | - Lara S Costard
- Epilepsy Center, Department of Neurology, Philipps University Marburg, 35043, Marburg, Germany
- Epilepsy Center Frankfurt Rhine-Main, Neurocenter, University Hospital Frankfurt and Center for Personalized Translational Epilepsy Research, Goethe University Frankfurt, 60528, Frankfurt, Germany
| | - Valentin Neubert
- Epilepsy Center, Department of Neurology, Philipps University Marburg, 35043, Marburg, Germany
- Oscar-Langendorff-Institute of Physiology, Rostock University Medical Center, Rostock, 18051, Germany
| | - Federico Del Gallo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 8 - 37134, Verona, Italy
| | - Beatrice Salvetti
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 8 - 37134, Verona, Italy
| | - Vamshidhar R Vangoor
- Affiliated Partner of the European Reference Network EpiCARE, Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Amaya Sanz-Rodriguez
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Juha Muilu
- Research and Development, BC Platforms, FI-02130, Espoo, Finland
| | - Paolo F Fabene
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 8 - 37134, Verona, Italy
| | - R Jeroen Pasterkamp
- Affiliated Partner of the European Reference Network EpiCARE, Department of Translational Neuroscience, University Medical Center Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Jochen H M Prehn
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
| | - Stephanie Schorge
- Department of Clinical and Experimental Epilepsy, Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
- UCL School of Pharmacy, University College London, London, WC1N 1AX, United Kingdom
| | - Jens S Andersen
- Center for Experimental Bioinformatics, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Felix Rosenow
- Epilepsy Center, Department of Neurology, Philipps University Marburg, 35043, Marburg, Germany
- Epilepsy Center Frankfurt Rhine-Main, Neurocenter, University Hospital Frankfurt and Center for Personalized Translational Epilepsy Research, Goethe University Frankfurt, 60528, Frankfurt, Germany
| | - Sebastian Bauer
- Epilepsy Center, Department of Neurology, Philipps University Marburg, 35043, Marburg, Germany
- Epilepsy Center Frankfurt Rhine-Main, Neurocenter, University Hospital Frankfurt and Center for Personalized Translational Epilepsy Research, Goethe University Frankfurt, 60528, Frankfurt, Germany
| | - Jørgen Kjems
- Interdisciplinary Nanoscience Centre, Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus C, Denmark
| | - David C Henshall
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland;
- FutureNeuro, The Science Foundation Ireland Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons in Ireland, Dublin, D02 YN77, Ireland
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Hu X, Wang Y, Liang H, Fan Q, Zhu R, Cui J, Zhang W, Zen K, Zhang CY, Hou D, Zhou Z, Chen X. miR-23a/b promote tumor growth and suppress apoptosis by targeting PDCD4 in gastric cancer. Cell Death Dis 2017; 8:e3059. [PMID: 28981115 PMCID: PMC5680570 DOI: 10.1038/cddis.2017.447] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 06/11/2017] [Accepted: 07/12/2017] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are short non-coding RNAs of 21-23 nucleotides that play important roles in virtually all biological pathways in mammals and in other multicellular organisms. miR-23a and miR-23b (miR-23a/b) are critical oncomiRs (miRNAs that are associated with human cancers) of gastric cancer, but their detailed roles in the initiation and progression of gastric cancer remain to be elucidated. In this study, we found that miR-23a/b were consistently upregulated in gastric cancer tissues. We then investigated the molecular mechanisms through which miR-23a/b contribute to gastric cancer and identified programmed cell death 4 (PDCD4) as a direct target gene of miR-23a/b. In contrast to the upregulated expression levels of miR-23a/b, PDCD4 protein levels were dramatically downregulated and inversely correlated with miR-23a/b in gastric cancer tissues. Moreover, we observed that cell apoptosis was increased by miR-23a/b inhibitors and decreased by miR-23a/b mimics in gastric cancer cells and that the restoration of PDCD4 expression attenuated the anti-apoptotic effects of miR-23a/b in gastric cancer cells, indicating that PDCD4 is a direct mediator of miR-23a/b functions. Finally, we showed that miR-23a/b significantly suppressed PDCD4 expression and enhanced tumor growth in a gastric cancer xenograft mouse model. Taken together, this study highlights an important role for miR-23a/b as oncomiRs in gastric cancer through the inhibition of PDCD4 translation. These findings may shed new light on the molecular mechanism of gastric carcinogenesis and provide a new avenue for gastric cancer treatment.
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Affiliation(s)
- Xiuting Hu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Yanbo Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Hongwei Liang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Qian Fan
- Department of Lymphoma, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Ruichi Zhu
- Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jiayi Cui
- Department of Microbiology, Harbin Medical University, Heilongjiang Provincial Key Laboratory for Infection and Immunity, Key Laboratory of Etiology of Heilongjiang Province Education Bureau, Harbin, China
| | - Weijie Zhang
- Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, Jiangsu 210008, China
| | - Ke Zen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Chen-Yu Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Dongxia Hou
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Zhen Zhou
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Xi Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, Jiangsu, China
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