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Rubenstein JL, Nord AS, Ekker M. DLX genes and proteins in mammalian forebrain development. Development 2024; 151:dev202684. [PMID: 38819455 PMCID: PMC11190439 DOI: 10.1242/dev.202684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
The vertebrate Dlx gene family encode homeobox transcription factors that are related to the Drosophila Distal-less (Dll) gene and are crucial for development. Over the last ∼35 years detailed information has accrued about the redundant and unique expression and function of the six mammalian Dlx family genes. DLX proteins interact with general transcriptional regulators, and co-bind with other transcription factors to enhancer elements with highly specific activity in the developing forebrain. Integration of the genetic and biochemical data has yielded a foundation for a gene regulatory network governing the differentiation of forebrain GABAergic neurons. In this Primer, we describe the discovery of vertebrate Dlx genes and their crucial roles in embryonic development. We largely focus on the role of Dlx family genes in mammalian forebrain development revealed through studies in mice. Finally, we highlight questions that remain unanswered regarding vertebrate Dlx genes despite over 30 years of research.
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Affiliation(s)
- John L. Rubenstein
- UCSF Department of Psychiatry and Behavioral Sciences, Department of UCSF Weill Institute for Neurosciences, Nina Ireland Laboratory of Developmental Neurobiology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Alex S. Nord
- Department of Neurobiology, Physiology, and Behavior and Department of Psychiatry and 20 Behavioral Sciences, Center for Neuroscience, University of California Davis, Davis, CA 95618, USA
| | - Marc Ekker
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada
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2
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Miyoshi G, Ueta Y, Yagasaki Y, Kishi Y, Fishell G, Machold RP, Miyata M. Developmental trajectories of GABAergic cortical interneurons are sequentially modulated by dynamic FoxG1 expression levels. Proc Natl Acad Sci U S A 2024; 121:e2317783121. [PMID: 38588430 PMCID: PMC11032493 DOI: 10.1073/pnas.2317783121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 03/04/2024] [Indexed: 04/10/2024] Open
Abstract
GABAergic inhibitory interneurons, originating from the embryonic ventral forebrain territories, traverse a convoluted migratory path to reach the neocortex. These interneuron precursors undergo sequential phases of tangential and radial migration before settling into specific laminae during differentiation. Here, we show that the developmental trajectory of FoxG1 expression is dynamically controlled in these interneuron precursors at critical junctures of migration. By utilizing mouse genetic strategies, we elucidate the pivotal role of precise changes in FoxG1 expression levels during interneuron specification and migration. Our findings underscore the gene dosage-dependent function of FoxG1, aligning with clinical observations of FOXG1 haploinsufficiency and duplication in syndromic forms of autism spectrum disorders. In conclusion, our results reveal the finely tuned developmental clock governing cortical interneuron development, driven by temporal dynamics and the dose-dependent actions of FoxG1.
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Affiliation(s)
- Goichi Miyoshi
- Department of Developmental Genetics and Behavioral Neuroscience, Gunma University Graduate School of Medicine, Maebashi city, Gunma371-8511, Japan
- Department of Neurophysiology, Tokyo Women’s Medical University, Shinjuku, Tokyo162-8666, Japan
- Department of Neuroscience and Physiology, Neuroscience Institute, New York University Grossman School of Medicine, New York, NY10016
| | - Yoshifumi Ueta
- Department of Neurophysiology, Tokyo Women’s Medical University, Shinjuku, Tokyo162-8666, Japan
| | - Yuki Yagasaki
- Department of Neurophysiology, Tokyo Women’s Medical University, Shinjuku, Tokyo162-8666, Japan
| | - Yusuke Kishi
- Laboratory of Molecular Neurobiology, Institute for Quantitative Biosciences, University of Tokyo, Bunkyo, Tokyo113-0032, Japan
- Laboratory of Molecular Biology, Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo, Tokyo113-0033, Japan
| | - Gord Fishell
- Department of Neuroscience and Physiology, Neuroscience Institute, New York University Grossman School of Medicine, New York, NY10016
- Department of Neurobiology, Blavatnik Institute, Harvard Medical School, Boston, MA02115
- Stanley Center at the Broad Institute, Cambridge, MA02142
| | - Robert P. Machold
- Department of Neuroscience and Physiology, Neuroscience Institute, New York University Grossman School of Medicine, New York, NY10016
| | - Mariko Miyata
- Department of Neurophysiology, Tokyo Women’s Medical University, Shinjuku, Tokyo162-8666, Japan
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3
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Ristori T, Thuret R, Hooker E, Quicke P, Lanthier K, Ntumba K, Aspalter IM, Uroz M, Herbert SP, Chen CS, Larrivée B, Bentley K. Bmp9 regulates Notch signaling and the temporal dynamics of angiogenesis via Lunatic Fringe. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.25.557123. [PMID: 37808725 PMCID: PMC10557600 DOI: 10.1101/2023.09.25.557123] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
In brief The mechanisms regulating the signaling pathways involved in angiogenesis are not fully known. Ristori et al. show that Lunatic Fringe (LFng) mediates the crosstalk between Bone Morphogenic Protein 9 (Bmp9) and Notch signaling, thereby regulating the endothelial cell behavior and temporal dynamics of their identity during sprouting angiogenesis. Highlights Bmp9 upregulates the expression of LFng in endothelial cells.LFng regulates the temporal dynamics of tip/stalk selection and rearrangement.LFng indicated to play a role in hereditary hemorrhagic telangiectasia.Bmp9 and LFng mediate the endothelial cell-pericyte crosstalk.Bone Morphogenic Protein 9 (Bmp9), whose signaling through Activin receptor-like kinase 1 (Alk1) is involved in several diseases, has been shown to independently activate Notch target genes in an additive fashion with canonical Notch signaling. Here, by integrating predictive computational modeling validated with experiments, we uncover that Bmp9 upregulates Lunatic Fringe (LFng) in endothelial cells (ECs), and thereby also regulates Notch activity in an inter-dependent, multiplicative fashion. Specifically, the Bmp9-upregulated LFng enhances Notch receptor activity creating a much stronger effect when Dll4 ligands are also present. During sprouting, this LFng regulation alters vessel branching by modulating the timing of EC phenotype selection and rearrangement. Our results further indicate that LFng can play a role in Bmp9-related diseases and in pericyte-driven vessel stabilization, since we find LFng contributes to Jag1 upregulation in Bmp9-stimulated ECs; thus, Bmp9-upregulated LFng results in not only enhanced EC Dll4-Notch1 activation, but also Jag1-Notch3 activation in pericytes.
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Liu W, Xie H, Liu X, Xu S, Cheng S, Wang Z, Xie T, Zhang ZC, Han J. PQBP1 regulates striatum development through balancing striatal progenitor proliferation and differentiation. Cell Rep 2023; 42:112277. [PMID: 36943865 DOI: 10.1016/j.celrep.2023.112277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/16/2023] [Accepted: 03/03/2023] [Indexed: 03/23/2023] Open
Abstract
The balance between cell proliferation and differentiation is essential for maintaining the neural progenitor pool and brain development. Although the mechanisms underlying cell proliferation and differentiation at the transcriptional level have been studied intensively, post-transcriptional regulation of cell proliferation and differentiation remains largely unclear. Here, we show that deletion of the alternative splicing regulator PQBP1 in striatal progenitors results in defective striatal development due to impaired neurogenesis of spiny projection neurons (SPNs). Pqbp1-deficient striatal progenitors exhibit declined proliferation and increased differentiation, resulting in a reduced striatal progenitor pool. We further reveal that PQBP1 associates with components in splicing machinery. The alternative splicing profiles identify that PQBP1 promotes the exon 9 inclusion of Numb, a variant that mediates progenitor proliferation. These findings identify PQBP1 as a regulator in balancing striatal progenitor proliferation and differentiation and provide alternative insights into the pathogenic mechanisms underlying Renpenning syndrome.
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Affiliation(s)
- Wenhua Liu
- School of Life Science and Technology, the Key Laboratory of Developmental Genes and Human Disease, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Hao Xie
- School of Life Science and Technology, the Key Laboratory of Developmental Genes and Human Disease, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Xian Liu
- School of Life Science and Technology, the Key Laboratory of Developmental Genes and Human Disease, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Shoujing Xu
- School of Life Science and Technology, the Key Laboratory of Developmental Genes and Human Disease, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Shanshan Cheng
- School of Life Science and Technology, the Key Laboratory of Developmental Genes and Human Disease, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Zheng Wang
- School of Psychological and Cognitive Sciences, Beijing Key Laboratory of Behavior and Mental Health, IDG/McGovern Institute for Brain Research, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Ting Xie
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zi Chao Zhang
- School of Life Science and Technology, the Key Laboratory of Developmental Genes and Human Disease, Southeast University, 2 Sipailou Road, Nanjing 210096, China.
| | - Junhai Han
- School of Life Science and Technology, the Key Laboratory of Developmental Genes and Human Disease, Southeast University, 2 Sipailou Road, Nanjing 210096, China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China; Department of Neurology, Affiliated ZhongDa Hospital, Institute of Neuropsychiatry, Southeast University, Nanjing, Jiangsu 210009, China.
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Hoque S, Dhar R, Kar R, Mukherjee S, Mukherjee D, Mukerjee N, Nag S, Tomar N, Mallik S. Cancer stem cells (CSCs): key player of radiotherapy resistance and its clinical significance. Biomarkers 2023; 28:139-151. [PMID: 36503350 DOI: 10.1080/1354750x.2022.2157875] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cancer stem cells (CSCs) are self-renewing and slow-multiplying micro subpopulations in tumour microenvironments. CSCs contribute to cancer's resistance to radiation (including radiation) and other treatments. CSCs control the heterogeneity of the tumour. It alters the tumour's microenvironment cellular singling and promotes epithelial-to-mesenchymal transition (EMT). Current research decodes the role of extracellular vesicles (EVs) and CSCs interlink in radiation resistance. Exosome is a subpopulation of EVs and originated from plasma membrane. It is secreted by several active cells. It involed in cellular communication and messenger of healthly and multiple pathological complications. Exosomal biological active cargos (DNA, RNA, protein, lipid and glycan), are capable to transform recipient cells' nature. The molecular signatures of CSCs and CSC-derived exosomes are potential source of cancer theranostics development. This review discusse cancer stem cells, radiation-mediated CSCs development, EMT associated with CSCs, the role of exosomes in radioresistance development, the current state of radiation therapy and the use of CSCs and CSCs-derived exosomes biomolecules as a clinical screening biomarker for cancer. This review gives new researchers a reason to keep an eye on the next phase of scientific research into cancer theranostics that will help mankind.
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Affiliation(s)
- Saminur Hoque
- Department of Radiology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, India
| | - Rajib Dhar
- Department of Genetic Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, India
| | - Rishav Kar
- Department of Medical Biotechnology, Ramakrishna Mission Vivekananda Educational and Research Institute
| | - Sayantanee Mukherjee
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | | | - Nobendu Mukerjee
- Department of Microbiology, West Bengal State University, Kolkata, West Bengal, India.,Department of Health Sciences, Novel Global Community Educational Foundation, Australia
| | - Sagnik Nag
- Department of Biotechnology, School of Biosciences & Technology, Vellore Institute of Technology (VIT), Tamil Nadu, India
| | - Namrata Tomar
- Department of Biomedical Engineering, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Saurav Mallik
- Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, USA.,Department of Environmental Health, Harvard T H Chan School of Public Health, Boston, MA, USA
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6
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Sun J, Zhang J, Bian Q, Wang X. Effects of Dlx2 overexpression on the genes associated with the maxillary process in the early mouse embryo. Front Genet 2023; 14:1085263. [PMID: 36891149 PMCID: PMC9986417 DOI: 10.3389/fgene.2023.1085263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/09/2023] [Indexed: 02/22/2023] Open
Abstract
The transcription factor Dlx2 plays an important role in craniomaxillofacial development. Overexpression or null mutations of Dlx2 can lead to craniomaxillofacial malformation in mice. However, the transcriptional regulatory effects of Dlx2 during craniomaxillofacial development remain to be elucidated. Using a mouse model that stably overexpresses Dlx2 in neural crest cells, we comprehensively characterized the effects of Dlx2 overexpression on the early development of maxillary processes in mice by conducting bulk RNA-Seq, scRNA-Seq and CUT&Tag analyses. Bulk RNA-Seq results showed that the overexpression of Dlx2 resulted in substantial transcriptome changes in E10.5 maxillary prominences, with genes involved in RNA metabolism and neuronal development most significantly affected. The scRNA-Seq analysis suggests that overexpression of Dlx2 did not change the differentiation trajectory of mesenchymal cells during this development process. Rather, it restricted cell proliferation and caused precocious differentiation, which may contribute to the defects in craniomaxillofacial development. Moreover, the CUT&Tag analysis using DLX2 antibody revealed enrichment of MNT and Runx2 motifs at the putative DLX2 binding sites, suggesting they may play critical roles in mediating the transcriptional regulatory effects of Dlx2. Together, these results provide important insights for understanding the transcriptional regulatory network of Dlx2 during craniofacial development.
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Affiliation(s)
- Jian Sun
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-Maxillofacial Surgery, College of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jianfei Zhang
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-Maxillofacial Surgery, College of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Bian
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-Maxillofacial Surgery, College of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Institute of Precision Medicine, Shanghai, China
| | - Xudong Wang
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-Maxillofacial Surgery, College of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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7
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Manuel M, Tan KB, Kozic Z, Molinek M, Marcos TS, Razak MFA, Dobolyi D, Dobie R, Henderson BEP, Henderson NC, Chan WK, Daw MI, Mason JO, Price DJ. Pax6 limits the competence of developing cerebral cortical cells to respond to inductive intercellular signals. PLoS Biol 2022; 20:e3001563. [PMID: 36067211 PMCID: PMC9481180 DOI: 10.1371/journal.pbio.3001563] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 09/16/2022] [Accepted: 07/08/2022] [Indexed: 12/13/2022] Open
Abstract
The development of stable specialized cell types in multicellular organisms relies on mechanisms controlling inductive intercellular signals and the competence of cells to respond to such signals. In developing cerebral cortex, progenitors generate only glutamatergic excitatory neurons despite being exposed to signals with the potential to initiate the production of other neuronal types, suggesting that their competence is limited. Here, we tested the hypothesis that this limitation is due to their expression of transcription factor Pax6. We used bulk and single-cell RNAseq to show that conditional cortex-specific Pax6 deletion from the onset of cortical neurogenesis allowed some progenitors to generate abnormal lineages resembling those normally found outside the cortex. Analysis of selected gene expression showed that the changes occurred in specific spatiotemporal patterns. We then compared the responses of control and Pax6-deleted cortical cells to in vivo and in vitro manipulations of extracellular signals. We found that Pax6 loss increased cortical progenitors’ competence to generate inappropriate lineages in response to extracellular factors normally present in developing cortex, including the morphogens Shh and Bmp4. Regional variation in the levels of these factors could explain spatiotemporal patterns of fate change following Pax6 deletion in vivo. We propose that Pax6’s main role in developing cortical cells is to minimize the risk of their development being derailed by the potential side effects of morphogens engaged contemporaneously in other essential functions. The development of stable specialized cell types in multicellular organisms relies on mechanisms controlling inductive intercellular signals and the competence of cells to respond. This study shows that cortical development is stabilized by the protective actions of the transcription factor Pax6, which adjusts the ability of cortical cells to respond to potentially destabilizing signals present in their local environment.
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Affiliation(s)
- Martine Manuel
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Kai Boon Tan
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Zrinko Kozic
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Michael Molinek
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Tiago Sena Marcos
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Maizatul Fazilah Abd Razak
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Dániel Dobolyi
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Ross Dobie
- Centre for Inflammation Research, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, United Kingdom
| | - Beth E. P. Henderson
- Centre for Inflammation Research, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, United Kingdom
| | - Neil C. Henderson
- Centre for Inflammation Research, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, United Kingdom
| | - Wai Kit Chan
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Michael I. Daw
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
- Zhejiang University-University of Edinburgh Institute, Zhejiang University, Haining, Zhejiang, People’s Republic of China
| | - John O. Mason
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - David J. Price
- Simons Initiative for the Developing Brain, Patrick Wild Centre, University of Edinburgh, Edinburgh, United Kingdom
- * E-mail:
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Leung RF, George AM, Roussel EM, Faux MC, Wigle JT, Eisenstat DD. Genetic Regulation of Vertebrate Forebrain Development by Homeobox Genes. Front Neurosci 2022; 16:843794. [PMID: 35546872 PMCID: PMC9081933 DOI: 10.3389/fnins.2022.843794] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/14/2022] [Indexed: 01/19/2023] Open
Abstract
Forebrain development in vertebrates is regulated by transcription factors encoded by homeobox, bHLH and forkhead gene families throughout the progressive and overlapping stages of neural induction and patterning, regional specification and generation of neurons and glia from central nervous system (CNS) progenitor cells. Moreover, cell fate decisions, differentiation and migration of these committed CNS progenitors are controlled by the gene regulatory networks that are regulated by various homeodomain-containing transcription factors, including but not limited to those of the Pax (paired), Nkx, Otx (orthodenticle), Gsx/Gsh (genetic screened), and Dlx (distal-less) homeobox gene families. This comprehensive review outlines the integral role of key homeobox transcription factors and their target genes on forebrain development, focused primarily on the telencephalon. Furthermore, links of these transcription factors to human diseases, such as neurodevelopmental disorders and brain tumors are provided.
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Affiliation(s)
- Ryan F. Leung
- Murdoch Children’s Research Institute, The Royal Children’s Hospital Melbourne, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
| | - Ankita M. George
- Murdoch Children’s Research Institute, The Royal Children’s Hospital Melbourne, Parkville, VIC, Australia
| | - Enola M. Roussel
- Murdoch Children’s Research Institute, The Royal Children’s Hospital Melbourne, Parkville, VIC, Australia
| | - Maree C. Faux
- Murdoch Children’s Research Institute, The Royal Children’s Hospital Melbourne, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
- Department of Surgery, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Jeffrey T. Wigle
- Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
| | - David D. Eisenstat
- Murdoch Children’s Research Institute, The Royal Children’s Hospital Melbourne, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
- Department of Medical Genetics, University of Alberta, Edmonton, AB, Canada
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
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del Águila Á, Adam M, Ullom K, Shaw N, Qin S, Ehrman J, Nardini D, Salomone J, Gebelein B, Lu QR, Potter SS, Waclaw R, Campbell K, Nakafuku M. Olig2 defines a subset of neural stem cells that produce specific olfactory bulb interneuron subtypes in the subventricular zone of adult mice. Development 2022; 149:274286. [PMID: 35132995 PMCID: PMC8959153 DOI: 10.1242/dev.200028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 01/24/2022] [Indexed: 12/12/2022]
Abstract
Distinct neural stem cells (NSCs) reside in different regions of the subventricular zone (SVZ) and generate multiple olfactory bulb (OB) interneuron subtypes in the adult brain. However, the molecular mechanisms underlying such NSC heterogeneity remain largely unknown. Here, we show that the basic helix-loop-helix transcription factor Olig2 defines a subset of NSCs in the early postnatal and adult SVZ. Olig2-expressing NSCs exist broadly but are most enriched in the ventral SVZ along the dorsoventral axis complementary to dorsally enriched Gsx2-expressing NSCs. Comparisons of Olig2-expressing NSCs from early embryonic to adult stages using single cell transcriptomics reveal stepwise developmental changes in their cell cycle and metabolic properties. Genetic studies further show that cross-repression contributes to the mutually exclusive expression of Olig2 and Gsx2 in NSCs/progenitors during embryogenesis, but that their expression is regulated independently from each other in adult NSCs. Finally, lineage-tracing and conditional inactivation studies demonstrate that Olig2 plays an important role in the specification of OB interneuron subtypes. Altogether, our study demonstrates that Olig2 defines a unique subset of adult NSCs enriched in the ventral aspect of the adult SVZ.
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Affiliation(s)
- Ángela del Águila
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Mike Adam
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Kristy Ullom
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Nicholas Shaw
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA,Department of Medical Science, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521, USA
| | - Shenyue Qin
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Jacqueline Ehrman
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Diana Nardini
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Joseph Salomone
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Brian Gebelein
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Q. Richard Lu
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA,Department of Pediatrics, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521, USA
| | - Steven S. Potter
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA,Department of Pediatrics, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521, USA
| | - Ronald Waclaw
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA,Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA,Department of Pediatrics, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521, USA
| | - Kenneth Campbell
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA,Department of Pediatrics, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521, USA,Division of Neurosurgery, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA
| | - Masato Nakafuku
- Division of Developmental Biology, Cincinnati Children's Hospital Research Foundation, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA,Department of Pediatrics, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521, USA,Department of Neurosurgery, University of Cincinnati College of Medicine, 3125 Eden Avenue, Cincinnati, OH 45267-0521, USA,Author for correspondence ()
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10
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Hou Z, Zhang H, Xu K, Zhu S, Wang L, Su D, Liu J, Su S, Liu D, Huang S, Xu J, Pan Z, Tao J. Cluster analysis of splenocyte microRNAs in the pig reveals key signal regulators of immunomodulation in the host during acute and chronic Toxoplasma gondii infection. Parasit Vectors 2022; 15:58. [PMID: 35177094 PMCID: PMC8851844 DOI: 10.1186/s13071-022-05164-3] [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: 11/08/2021] [Accepted: 01/12/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Toxoplasma gondii is an obligate intracellular protozoan parasite that can cause a geographically widespread zoonosis. Our previous splenocyte microRNA profile analyses of pig infected with T. gondii revealed that the coordination of a large number of miRNAs regulates the host immune response during infection. However, the functions of other miRNAs involved in the immune regulation during T. gondii infection are not yet known. METHODS Clustering analysis was performed by K-means, self-organizing map (SOM), and hierarchical clustering to obtain miRNA groups with the similar expression patterns. Then, the target genes of the miRNA group in each subcluster were further analyzed for functional enrichment by Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Reactome pathway to recognize the key signaling molecules and the regulatory signatures of the innate and adaptive immune responses of the host during T. gondii infection. RESULTS A total of 252 miRNAs were successfully divided into 22 subclusters by K-means clustering (designated as K1-K22), 29 subclusters by SOM clustering (designated as SOM1-SOM29), and six subclusters by hierarchical clustering (designated as H1-H6) based on their dynamic expression levels in the different infection stages. A total of 634, 660, and 477 GO terms, 15, 26, and 14 KEGG pathways, and 16, 15, and 7 Reactome pathways were significantly enriched by K-means, SOM, and hierarchical clustering, respectively. Of note, up to 22 miRNAs mainly showing downregulated expression at 50 days post-infection (dpi) were grouped into one subcluster (namely subcluster H3-K17-SOM1) through the three algorithms. Functional analysis revealed that a large group of immunomodulatory signaling molecules were controlled by the different miRNA groups to regulate multiple immune processes, for instance, IL-1-mediated cellular response and Th1/Th2 cell differentiation partly depending on Notch signaling transduction for subclusters K1 and K2, innate immune response involved in neutrophil degranulation and TLR4 cascade signaling for subcluster K15, B cell activation for subclusters SOM17, SOM1, and SOM25, leukocyte migration, and chemokine activity for subcluster SOM9, cytokine-cytokine receptor interaction for subcluster H2, and interleukin production, chemotaxis of immune cells, chemokine signaling pathway, and C-type lectin receptor signaling pathway for subcluster H3-K17-SOM1. CONCLUSIONS Cluster analysis of splenocyte microRNAs in the pig revealed key regulatory properties of subcluster miRNA molecules and important features in the immune regulation induced by acute and chronic T. gondii infection. These results contribute new insight into the identification of physiological immune responses and maintenance of tolerance in pig spleen tissues during T. gondii infection.
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Affiliation(s)
- Zhaofeng Hou
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Hui Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Kangzhi Xu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Shifan Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Lele Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Dingzeyang Su
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Jiantao Liu
- YEBIO Bioengineering Co., Ltd. of QINGDAO, Qingdao, 266109, People's Republic of China
| | - Shijie Su
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Dandan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Siyang Huang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Jinjun Xu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Zhiming Pan
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China
| | - Jianping Tao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, People's Republic of China. .,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, 225009, People's Republic of China. .,Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, People's Republic of China.
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11
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Su Z, Wang Z, Lindtner S, Yang L, Shang Z, Tian Y, Guo R, You Y, Zhou W, Rubenstein JL, Yang Z, Zhang Z. Dlx1/2-dependent expression of Meis2 promotes neuronal fate determination in the mammalian striatum. Development 2022; 149:dev200035. [PMID: 35156680 PMCID: PMC8918808 DOI: 10.1242/dev.200035] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 01/04/2022] [Indexed: 12/16/2022]
Abstract
The striatum is a central regulator of behavior and motor function through the actions of D1 and D2 medium-sized spiny neurons (MSNs), which arise from a common lateral ganglionic eminence (LGE) progenitor. The molecular mechanisms of cell fate specification of these two neuronal subtypes are incompletely understood. Here, we found that deletion of murine Meis2, which is highly expressed in the LGE and derivatives, led to a large reduction in striatal MSNs due to a block in their differentiation. Meis2 directly binds to the Zfp503 and Six3 promoters and is required for their expression and specification of D1 and D2 MSNs, respectively. Finally, Meis2 expression is regulated by Dlx1/2 at least partially through the enhancer hs599 in the LGE subventricular zone. Overall, our findings define a pathway in the LGE whereby Dlx1/2 drives expression of Meis2, which subsequently promotes the fate determination of striatal D1 and D2 MSNs via Zfp503 and Six3.
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Affiliation(s)
- Zihao Su
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - Ziwu Wang
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - Susan Lindtner
- Department of Psychiatry, Nina Ireland Laboratory of Developmental Neurobiology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Lin Yang
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - Zicong Shang
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - Yu Tian
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - Rongliang Guo
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - Yan You
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - Wenhao Zhou
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - John L. Rubenstein
- Department of Psychiatry, Nina Ireland Laboratory of Developmental Neurobiology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Zhengang Yang
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
| | - Zhuangzhi Zhang
- Key Laboratory of Birth Defects, Children's Hospital of Fudan University, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
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12
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Aerts T, Seuntjens E. Novel Perspectives on the Development of the Amygdala in Rodents. Front Neuroanat 2021; 15:786679. [PMID: 34955766 PMCID: PMC8696165 DOI: 10.3389/fnana.2021.786679] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/10/2021] [Indexed: 12/14/2022] Open
Abstract
The amygdala is a hyperspecialized brain region composed of strongly inter- and intraconnected nuclei involved in emotional learning and behavior. The cellular heterogeneity of the amygdalar nuclei has complicated straightforward conclusions on their developmental origin, and even resulted in contradictory data. Recently, the concentric ring theory of the pallium and the radial histogenetic model of the pallial amygdala have cleared up several uncertainties that plagued previous models of amygdalar development. Here, we provide an extensive overview on the developmental origin of the nuclei of the amygdaloid complex. Starting from older gene expression data, transplantation and lineage tracing studies, we systematically summarize and reinterpret previous findings in light of the novel perspectives on amygdalar development. In addition, migratory routes that these cells take on their way to the amygdala are explored, and known transcription factors and guidance cues that seemingly drive these cells toward the amygdala are emphasized. We propose some future directions for research on amygdalar development and highlight that a better understanding of its development could prove critical for the treatment of several neurodevelopmental and neuropsychiatric disorders.
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Affiliation(s)
- Tania Aerts
- Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Eve Seuntjens
- Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
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13
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Lesieur-Sebellin M, Till M, Khau Van Kien P, Herve B, Bourgon N, Dupont C, Tabet AC, Barrois M, Coussement A, Loeuillet L, Mousty E, Ea V, El Assal A, Mary L, Jaillard S, Beneteau C, Le Vaillant C, Coutton C, Devillard F, Goumy C, Delabaere A, Redon S, Laurent Y, Lamouroux A, Massardier J, Turleau C, Sanlaville D, Cantagrel V, Sonigo P, Vialard F, Salomon LJ, Malan V. Terminal 6q deletions cause brain malformations, a phenotype mimicking heterozygous DLL1 pathogenic variants: A multicenter retrospective case series. Prenat Diagn 2021; 42:118-135. [PMID: 34894355 DOI: 10.1002/pd.6074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Terminal 6q deletion is a rare genetic condition associated with a neurodevelopmental disorder characterized by intellectual disability and structural brain anomalies. Interestingly, a similar phenotype is observed in patients harboring pathogenic variants in the DLL1 gene. Our study aimed to further characterize the prenatal phenotype of this syndrome as well as to attempt to establish phenotype-genotype correlations. METHOD We collected ultrasound findings from 22 fetuses diagnosed with a pure 6qter deletion. We reviewed the literature and compared our 22 cases with 14 fetuses previously reported as well as with patients with heterozygous DLL1 pathogenic variants. RESULTS Brain structural alterations were observed in all fetuses. The most common findings (>70%) were cerebellar hypoplasia, ventriculomegaly, and corpus callosum abnormalities. Gyration abnormalities were observed in 46% of cases. Occasional findings included cerebral heterotopia, aqueductal stenosis, vertebral malformations, dysmorphic features, and kidney abnormalities. CONCLUSION This is the first series of fetuses diagnosed with pure terminal 6q deletion. Based on our findings, we emphasize the prenatal sonographic anomalies, which may suggest the syndrome. Furthermore, this study highlights the importance of chromosomal microarray analysis to search for submicroscopic deletions of the 6q27 region involving the DLL1 gene in fetuses with these malformations.
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Affiliation(s)
- Marion Lesieur-Sebellin
- Service de Médecine Génomique des Maladies Rares, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
- Faculté de Médecine, Sorbonne Université, Paris, France
| | - Marianne Till
- Laboratoire de Cytogénétique, service de Génétique, Hospices Civils de Lyon, Groupement Hospitalier Est, Bron, France
| | | | - Bérénice Herve
- Département de Génétique, CHI Poissy Saint-Germain, Saint-Germain, France
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
| | - Nicolas Bourgon
- Service d'Obstétrique et de Médecine Fœtale, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Céline Dupont
- Département de Génétique, Unité de Cytogénétique, Hôpital Robert Debré, APHP Nord, Paris, France
| | - Anne-Claude Tabet
- Département de Génétique, Unité de Cytogénétique, Hôpital Robert Debré, APHP Nord, Paris, France
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris, Paris, France
| | - Mathilde Barrois
- Maternité Port Royal, APHP Centre, Hôpital Cochin, Paris, France
| | - Aurélie Coussement
- Service des Maladies Génétiques de système et d'organes, APHP-Centre, Hôpital Cochin, Paris, France
| | - Laurence Loeuillet
- Service de Médecine Génomique des Maladies Rares, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Eve Mousty
- Service de Gynécologie Obstétrique, Hôpital Caremeau, Nîmes, France
| | - Vuthy Ea
- UF de Cytogénétique et Génétique Médicale, Hôpital Caremeau, Nîmes, France
| | - Amal El Assal
- Département de Gynécologie Obstétrique, CHI Poissy Saint-Germain, Saint-Germain, France
| | - Laura Mary
- Service d'Anatomie Pathologique, CHU Rennes, Rennes, France
- Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
| | - Sylvie Jaillard
- Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
- INSERM, EHESP, IRSET, Université Rennes 1, Rennes, France
| | - Claire Beneteau
- Service de Génétique Médicale, CHU Nantes, Nantes, France
- UF de Fœtopathologie et Génétique, CHU de Nantes, Nantes, France
| | | | - Charles Coutton
- Service de Génétique, Génomique et Procréation, Hôpital Couple Enfant, CHU Grenoble Alpes, Grenoble, France
- Université Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institut pour l'Avancée des Biosciences, Equipe Génétique, Epigénétique et Thérapies de l'infertilité, Grenoble, France
| | - Françoise Devillard
- Service de Génétique, Génomique et Procréation, Hôpital Couple Enfant, CHU Grenoble Alpes, Grenoble, France
| | - Carole Goumy
- Cytogénétique Médicale, CHU Clermont-Ferrand, CHU Estaing, Université Clermont Auvergne, INSERM, U1240 Imagerie Moléculaire et Stratégies Théranostiques, Clermont-Ferrand, France
| | | | - Sylvia Redon
- CHU Brest, Inserm, Université de Brest, Brest, France
| | - Yves Laurent
- Service de Gynécologie et Obstétrique, GHBS Lorient, Lorient, France
| | - Audrey Lamouroux
- Service de Génétique Clinique, CHU Montpellier, Université de Montpellier, Montpellier, France
- Service de Gynécologie Obstétrique, CHU Nîmes, Université de Montpellier, Nîmes, France
| | - Jérôme Massardier
- Service de Gynécologie et Obstétrique, Hôpital Femme-Mère-Enfant, Hospices Civils de Lyon, Bron, France
| | - Catherine Turleau
- Service de Médecine Génomique des Maladies Rares, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Damien Sanlaville
- Laboratoire de Cytogénétique, service de Génétique, Hospices Civils de Lyon, Groupement Hospitalier Est, Bron, France
| | - Vincent Cantagrel
- Université de Paris, Institut Imagine, Laboratoire de génétique des troubles du neurodéveloppement, Paris, France
- Université de Paris, Paris, France
| | - Pascale Sonigo
- Service de Radiologie Pédiatrique, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - François Vialard
- Département de Génétique, CHI Poissy Saint-Germain, Saint-Germain, France
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
| | - Laurent J Salomon
- Service d'Obstétrique et de Médecine Fœtale, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
- Université de Paris, Paris, France
| | - Valérie Malan
- Service de Médecine Génomique des Maladies Rares, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
- Université de Paris, Institut Imagine, Laboratoire de génétique des troubles du neurodéveloppement, Paris, France
- Université de Paris, Paris, France
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14
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Legault LM, Doiron K, Breton-Larrivée M, Langford-Avelar A, Lemieux A, Caron M, Jerome-Majewska LA, Sinnett D, McGraw S. Pre-implantation alcohol exposure induces lasting sex-specific DNA methylation programming errors in the developing forebrain. Clin Epigenetics 2021; 13:164. [PMID: 34425890 PMCID: PMC8381495 DOI: 10.1186/s13148-021-01151-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 08/11/2021] [Indexed: 12/26/2022] Open
Abstract
Background Prenatal alcohol exposure is recognized for altering DNA methylation profiles of brain cells during development, and to be part of the molecular basis underpinning Fetal Alcohol Spectrum Disorder (FASD) etiology. However, we have negligible information on the effects of alcohol exposure during pre-implantation, the early embryonic window marked with dynamic DNA methylation reprogramming, and on how this may rewire the brain developmental program. Results Using a pre-clinical in vivo mouse model, we show that a binge-like alcohol exposure during pre-implantation at the 8-cell stage leads to surge in morphological brain defects and adverse developmental outcomes during fetal life. Genome-wide DNA methylation analyses of fetal forebrains uncovered sex-specific alterations, including partial loss of DNA methylation maintenance at imprinting control regions, and abnormal de novo DNA methylation profiles in various biological pathways (e.g., neural/brain development). Conclusion These findings support that alcohol-induced DNA methylation programming deviations during pre-implantation could contribute to the manifestation of neurodevelopmental phenotypes associated with FASD. Supplementary Information The online version contains supplementary material available at 10.1186/s13148-021-01151-0.
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Affiliation(s)
- L M Legault
- CHU Sainte-Justine Research Center, 3175 Chemin de La Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada
| | - K Doiron
- CHU Sainte-Justine Research Center, 3175 Chemin de La Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada
| | - M Breton-Larrivée
- CHU Sainte-Justine Research Center, 3175 Chemin de La Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada
| | - A Langford-Avelar
- CHU Sainte-Justine Research Center, 3175 Chemin de La Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada
| | - A Lemieux
- CHU Sainte-Justine Research Center, 3175 Chemin de La Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada
| | - M Caron
- CHU Sainte-Justine Research Center, 3175 Chemin de La Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada
| | - L A Jerome-Majewska
- McGill University Health Centre Glen Site, 1001 Boulevard Décarie, Montréal, QC, H4A 3J1, Canada.,Department of Pediatrics, McGill University, 1001 Boulevard Décarie, Montréal, QC, H4A 3J1, Canada
| | - D Sinnett
- CHU Sainte-Justine Research Center, 3175 Chemin de La Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada.,Department of Pediatrics, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada
| | - S McGraw
- CHU Sainte-Justine Research Center, 3175 Chemin de La Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada. .,Department of Biochemistry and Molecular Medicine, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada. .,Department of Obstetrics and Gynecology, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada.
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15
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Yang J, Yang X, Tang K. Interneuron development and dysfunction. FEBS J 2021; 289:2318-2336. [PMID: 33844440 DOI: 10.1111/febs.15872] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 04/09/2021] [Indexed: 12/17/2022]
Abstract
Understanding excitation and inhibition balance in the brain begins with the tale of two basic types of neurons, glutamatergic projection neurons and GABAergic interneurons. The diversity of cortical interneurons is contributed by multiple origins in the ventral forebrain, various tangential migration routes, and complicated regulations of intrinsic factors, extrinsic signals, and activities. Abnormalities of interneuron development lead to dysfunction of interneurons and inhibitory circuits, which are highly associated with neurodevelopmental disorders including schizophrenia, autism spectrum disorders, and intellectual disability. In this review, we mainly discuss recent findings on the development of cortical interneuron and on neurodevelopmental disorders related to interneuron dysfunction.
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Affiliation(s)
- Jiaxin Yang
- Precise Genome Engineering Center, School of Life Sciences, Guangzhou University, China
| | - Xiong Yang
- Precise Genome Engineering Center, School of Life Sciences, Guangzhou University, China
| | - Ke Tang
- Precise Genome Engineering Center, School of Life Sciences, Guangzhou University, China
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16
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Turrero García M, Stegmann SK, Lacey TE, Reid CM, Hrvatin S, Weinreb C, Adam MA, Nagy MA, Harwell CC. Transcriptional profiling of sequentially generated septal neuron fates. eLife 2021; 10:71545. [PMID: 34851821 PMCID: PMC8694698 DOI: 10.7554/elife.71545] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 11/22/2021] [Indexed: 01/11/2023] Open
Abstract
The septum is a ventral forebrain structure known to regulate innate behaviors. During embryonic development, septal neurons are produced in multiple proliferative areas from neural progenitors following transcriptional programs that are still largely unknown. Here, we use a combination of single-cell RNA sequencing, histology, and genetic models to address how septal neuron diversity is established during neurogenesis. We find that the transcriptional profiles of septal progenitors change along neurogenesis, coinciding with the generation of distinct neuron types. We characterize the septal eminence, an anatomically distinct and transient proliferative zone composed of progenitors with distinctive molecular profiles, proliferative capacity, and fate potential compared to the rostral septal progenitor zone. We show that Nkx2.1-expressing septal eminence progenitors give rise to neurons belonging to at least three morphological classes, born in temporal cohorts that are distributed across different septal nuclei in a sequential fountain-like pattern. Our study provides insight into the molecular programs that control the sequential production of different neuronal types in the septum, a structure with important roles in regulating mood and motivation.
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Affiliation(s)
| | - Sarah K Stegmann
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | - Tiara E Lacey
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States,Biological and Biomedical Sciences PhD program at Harvard UniversityCambridgeUnited States
| | - Christopher M Reid
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States,PhD Program in Neuroscience at Harvard UniversityCambridgeUnited States
| | - Sinisa Hrvatin
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | - Caleb Weinreb
- Department of Systems Biology, Harvard Medical SchoolBostonUnited States,PhD Program in Systems Biology at Harvard UniversityCambridgeUnited States
| | - Manal A Adam
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | - M Aurel Nagy
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States,PhD Program in Neuroscience at Harvard UniversityCambridgeUnited States
| | - Corey C Harwell
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
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17
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Wang L, Yan R, Yang Q, Li H, Zhang J, Shimoda Y, Kato K, Yamanaka K, An Y. Role of GH/IGF axis in arsenite-induced developmental toxicity in zebrafish embryos. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 201:110820. [PMID: 32531574 DOI: 10.1016/j.ecoenv.2020.110820] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 05/09/2020] [Accepted: 05/26/2020] [Indexed: 05/25/2023]
Abstract
Growth hormone (GH)/insulin-like growth factor (IGF) axis plays a critical role in fetal development. However, the effect of arsenite exposure on the GH/IGF axis and its toxic mechanism are still unclear. Zebrafish embryos were exposed to a range of NaAsO2 concentrations (0.0-10.0 mM) between 4 and 120 h post-fertilization (hpf). Development indexes of survival, malformation, hatching rate, heart rate, body length and locomotor behavior were measured. Hormone levels, GH/IGF axis-related genes, and nerve-related genes were also tested. The results showed that survival rate, hatching rate, heart rate, body length and locomotor behavior all decreased, while deformity increased. At 120 hpf, the survival rate of zebrafish in 1.5 mM NaAsO2 group was about 70%, the deformity rate exceeded 20%, and the body length shortened to 3.35 mm, the movement distance of zebrafish decreased approximately 63.6% under light condition and about 52.4% under dark condition. The level of GH increased and those of IGF did not change significantly, while the expression of GH/IGF axis related genes (ghra, ghrb, igf2r, igfbp3, igfbp2a, igfbp5b) and nerve related genes (dlx2, shha, ngn1, elavl3, gfap) decreased. In 1.5 mM NaAsO2 group, the decrease of igfbp3 and igfbp5b was almost obvious, about 78.2% and 72.2%. The expression of nerve genes in 1.5 mM NaAsO2 group all have declined by more than 50%. These findings suggested that arsenite exerted disruptive effects on the endocrine system by interfering with the GH/IGF axis, leading to zebrafish embryonic developmental toxicity.
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Affiliation(s)
- Luna Wang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Rui Yan
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Qianlei Yang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Heran Li
- Microwants International LTD, Hong Kong, China
| | - Jie Zhang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yasuyo Shimoda
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba, 274-8555, Japan
| | - Koichi Kato
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba, 274-8555, Japan
| | - Kenzo Yamanaka
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba, 274-8555, Japan.
| | - Yan An
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China.
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18
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Lindtner S, Catta-Preta R, Tian H, Su-Feher L, Price JD, Dickel DE, Greiner V, Silberberg SN, McKinsey GL, McManus MT, Pennacchio LA, Visel A, Nord AS, Rubenstein JLR. Genomic Resolution of DLX-Orchestrated Transcriptional Circuits Driving Development of Forebrain GABAergic Neurons. Cell Rep 2020; 28:2048-2063.e8. [PMID: 31433982 PMCID: PMC6750766 DOI: 10.1016/j.celrep.2019.07.022] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/29/2019] [Accepted: 07/08/2019] [Indexed: 11/24/2022] Open
Abstract
DLX transcription factors (TFs) are master regulators of the developing vertebrate brain, driving forebrain GABAergic neuronal differentiation. Ablation of Dlx1&2 alters expression of genes that are critical for forebrain GABAergic development. We integrated epigenomic and transcriptomic analyses, complemented with in situ hybridization (ISH), and in vivo and in vitro studies of regulatory element (RE) function. This revealed the DLX-organized gene regulatory network at genomic, cellular, and spatial levels in mouse embryonic basal ganglia. DLX TFs perform dual activating and repressing functions; the consequences of their binding were determined by the sequence and genomic context of target loci. Our results reveal and, in part, explain the paradox of widespread DLX binding contrasted with a limited subset of target loci that are sensitive at the epigenomic and transcriptomic level to Dlx1&2 ablation. The regulatory properties identified here for DLX TFs suggest general mechanisms by which TFs orchestrate dynamic expression programs underlying neurodevelopment. Lindtner et al. reveal the regulatory wiring organized by DLX transcription factors in forebrain GABAergic neuronal specification, by integrating functional genomic, epigenomic, and genetic data on a transgenic mouse model. This network determines key sequence-encoded regulatory elements and implicates a combination of histone modifications and biophysical interactions.
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Affiliation(s)
- Susan Lindtner
- Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Rinaldo Catta-Preta
- Department of Neurobiology, Physiology and Behavior, and Department of Psychiatry and Behavioral Sciences, University of California, Davis, Davis, CA 95618, USA
| | - Hua Tian
- Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Linda Su-Feher
- Department of Neurobiology, Physiology and Behavior, and Department of Psychiatry and Behavioral Sciences, University of California, Davis, Davis, CA 95618, USA
| | - James D Price
- Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94158, USA; Development and Stem Cell Biology Program, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Diane E Dickel
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Vanille Greiner
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Shanni N Silberberg
- Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Gabriel L McKinsey
- Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Michael T McManus
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Len A Pennacchio
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; U.S. Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA; Comparative Biochemistry Program, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Axel Visel
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; U.S. Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA; School of Natural Sciences, University of California, Merced, Merced, CA 95343, USA
| | - Alex S Nord
- Department of Neurobiology, Physiology and Behavior, and Department of Psychiatry and Behavioral Sciences, University of California, Davis, Davis, CA 95618, USA.
| | - John L R Rubenstein
- Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA 94158, USA; Development and Stem Cell Biology Program, University of California, San Francisco, San Francisco, CA 94158, USA.
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19
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Matsushima A, Graybiel AM. Combinatorial Developmental Controls on Striatonigral Circuits. Cell Rep 2020; 31:107778. [PMID: 32553154 PMCID: PMC7433760 DOI: 10.1016/j.celrep.2020.107778] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/12/2020] [Accepted: 05/27/2020] [Indexed: 11/17/2022] Open
Abstract
Cortical pyramidal cells are generated locally, from pre-programmed progenitors, to form functionally distinct areas. By contrast, striatal projection neurons (SPNs) are generated remotely from a common source, undergo migration to form mosaics of striosomes and matrix, and become incorporated into functionally distinct sectors. Striatal circuits might thus have a unique logic of developmental organization, distinct from those of the neocortex. We explore this possibility in mice by mapping one set of SPNs, those in striosomes, with striatonigral projections to the dopamine-containing substantia nigra pars compacta (SNpc). Same-age SPNs exhibit topographic striatonigral projections, according to their resident sector. However, the different birth dates of resident SPNs within a given sector specify the destination of their axons within the SNpc. These findings highlight a logic intercalating birth date-dependent and birth date-independent factors in determining the trajectories of SPN axons and organizing specialized units of striatonigral circuitry that could influence behavioral expression and vulnerabilities to disease.
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Affiliation(s)
- Ayano Matsushima
- McGovern Institute for Brain Research and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 20139, USA
| | - Ann M Graybiel
- McGovern Institute for Brain Research and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 20139, USA.
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20
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Roychoudhury K, Salomone J, Qin S, Cain B, Adam M, Potter SS, Nakafuku M, Gebelein B, Campbell K. Physical interactions between Gsx2 and Ascl1 balance progenitor expansion versus neurogenesis in the mouse lateral ganglionic eminence. Development 2020; 147:dev.185348. [PMID: 32122989 DOI: 10.1242/dev.185348] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 02/13/2020] [Indexed: 12/15/2022]
Abstract
The Gsx2 homeodomain transcription factor promotes neural progenitor identity in the lateral ganglionic eminence (LGE), despite upregulating the neurogenic factor Ascl1. How this balance in maturation is maintained is unclear. Here, we show that Gsx2 and Ascl1 are co-expressed in subapical progenitors that have unique transcriptional signatures in LGE ventricular zone (VZ) cells. Moreover, whereas Ascl1 misexpression promotes neurogenesis in dorsal telencephalic progenitors, the co-expression of Gsx2 with Ascl1 inhibits neurogenesis. Using luciferase assays, we found that Gsx2 reduces the ability of Ascl1 to activate gene expression in a dose-dependent and DNA binding-independent manner. Furthermore, Gsx2 physically interacts with the basic helix-loop-helix (bHLH) domain of Ascl1, and DNA-binding assays demonstrated that this interaction interferes with the ability of Ascl1 to bind DNA. Finally, we modified a proximity ligation assay for tissue sections and found that Ascl1-Gsx2 interactions are enriched within LGE VZ progenitors, whereas Ascl1-Tcf3 (E-protein) interactions predominate in the subventricular zone. Thus, Gsx2 contributes to the balance between progenitor maintenance and neurogenesis by physically interacting with Ascl1, interfering with its DNA binding and limiting neurogenesis within LGE progenitors.
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Affiliation(s)
- Kaushik Roychoudhury
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - Joseph Salomone
- Graduate Program in Molecular and Developmental Biology, Cincinnati Children's Hospital Research Foundation, Cincinnati, OH 45229, USA.,Medical-Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Shenyue Qin
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - Brittany Cain
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Mike Adam
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - S Steven Potter
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Masato Nakafuku
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Brian Gebelein
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA .,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Kenneth Campbell
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA .,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
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21
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Bar Yaacov R, Eshel R, Farhi E, Shemuluvich F, Kaplan T, Birnbaum RY. Functional characterization of the ZEB2 regulatory landscape. Hum Mol Genet 2020; 28:1487-1497. [PMID: 30590588 PMCID: PMC6466108 DOI: 10.1093/hmg/ddy440] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/12/2018] [Accepted: 12/14/2018] [Indexed: 01/03/2023] Open
Abstract
Zinc finger E-box–binding homeobox 2 (ZEB2) is a key developmental regulator of the central nervous system (CNS). Although the transcriptional regulation of ZEB2 is essential for CNS development, the elements that regulate ZEB2 expression have yet to be identified. Here, we identified a proximal regulatory region of ZEB2 and characterized transcriptional enhancers during neuronal development. Using chromatin immunoprecipitation sequencing for active (H3K27ac) and repressed (H3K27me3) chromatin regions in human neuronal progenitors, combined with an in vivo zebrafish enhancer assay, we functionally characterized 18 candidate enhancers in the ZEB2 locus. Eight enhancers drove expression patterns that were specific to distinct mid/hindbrain regions (ZEB2#e3 and 5), trigeminal-like ganglia (ZEB2#e6 and 7), notochord (ZEB2#e2, 4 and 12) and whole brain (ZEB2#e14). We further dissected the minimal sequences that drive enhancer-specific activity in the mid/hindbrain and notochord. Using a reporter assay in human cells, we showed an increased activity of the minimal notochord enhancer ZEB2#e2 in response to AP-1 and DLX1/2 expressions, while repressed activity of this enhancer was seen in response to ZEB2 and TFAP2 expressions. We showed that Dlx1 but not Zeb2 and Tfap2 occupies Zeb2#e2 enhancer sequence in the mouse notochord at embryonic day 11.5. Using CRISPR/Cas9 genome editing, we deleted the ZEB2#e2 region, leading to reduction of ZEB2 expression in human cells. We thus characterized distal transcriptional enhancers and trans-acting elements that govern regulation of ZEB2 expression during neuronal development. These findings pave the path toward future analysis of the role of ZEB2 regulatory elements in neurodevelopmental disorders, such as Mowat–Wilson syndrome.
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Affiliation(s)
- Reut Bar Yaacov
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Center of Evolutionary Genomics and Medicine, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Reut Eshel
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Center of Evolutionary Genomics and Medicine, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Einan Farhi
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Center of Evolutionary Genomics and Medicine, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Fania Shemuluvich
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Center of Evolutionary Genomics and Medicine, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Tommy Kaplan
- School of Computer Science and Engineering, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ramon Y Birnbaum
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Center of Evolutionary Genomics and Medicine, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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22
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Guo T, Liu G, Du H, Wen Y, Wei S, Li Z, Tao G, Shang Z, Song X, Zhang Z, Xu Z, You Y, Chen B, Rubenstein JL, Yang Z. Dlx1/2 are Central and Essential Components in the Transcriptional Code for Generating Olfactory Bulb Interneurons. Cereb Cortex 2019; 29:4831-4849. [PMID: 30796806 PMCID: PMC6917526 DOI: 10.1093/cercor/bhz018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 01/03/2019] [Accepted: 01/26/2019] [Indexed: 12/22/2022] Open
Abstract
Generation of olfactory bulb (OB) interneurons requires neural stem/progenitor cell specification, proliferation, differentiation, and young interneuron migration and maturation. Here, we show that the homeobox transcription factors Dlx1/2 are central and essential components in the transcriptional code for generating OB interneurons. In Dlx1/2 constitutive null mutants, the differentiation of GSX2+ and ASCL1+ neural stem/progenitor cells in the dorsal lateral ganglionic eminence is blocked, resulting in a failure of OB interneuron generation. In Dlx1/2 conditional mutants (hGFAP-Cre; Dlx1/2F/- mice), GSX2+ and ASCL1+ neural stem/progenitor cells in the postnatal subventricular zone also fail to differentiate into OB interneurons. In contrast, overexpression of Dlx1&2 in embryonic mouse cortex led to ectopic production of OB-like interneurons that expressed Gad1, Sp8, Sp9, Arx, Pbx3, Etv1, Tshz1, and Prokr2. Pax6 mutants generate cortical ectopia with OB-like interneurons, but do not do so in compound Pax6; Dlx1/2 mutants. We propose that DLX1/2 promote OB interneuron development mainly through activating the expression of Sp8/9, which further promote Tshz1 and Prokr2 expression. Based on this study, in combination with earlier ones, we propose a transcriptional network for the process of OB interneuron development.
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Affiliation(s)
- Teng Guo
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Guoping Liu
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Heng Du
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Yan Wen
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Song Wei
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Zhenmeiyu Li
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Guangxu Tao
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Zicong Shang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Xiaolei Song
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Zhuangzhi Zhang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Zhejun Xu
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Yan You
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
| | - Bin Chen
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, CA 95064, USA
| | - John L Rubenstein
- Department of Psychiatry, Nina Ireland Laboratory of Developmental Neurobiology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, MOE Frontier Research Center for Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, PR China
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23
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Zhang Z, Wei S, Du H, Su Z, Wen Y, Shang Z, Song X, Xu Z, You Y, Yang Z. Zfhx3 is required for the differentiation of late born D1-type medium spiny neurons. Exp Neurol 2019; 322:113055. [DOI: 10.1016/j.expneurol.2019.113055] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/17/2019] [Accepted: 09/02/2019] [Indexed: 12/16/2022]
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24
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Haploinsufficiency of the Notch Ligand DLL1 Causes Variable Neurodevelopmental Disorders. Am J Hum Genet 2019; 105:631-639. [PMID: 31353024 DOI: 10.1016/j.ajhg.2019.07.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023] Open
Abstract
Notch signaling is an established developmental pathway for brain morphogenesis. Given that Delta-like 1 (DLL1) is a ligand for the Notch receptor and that a few individuals with developmental delay, intellectual disability, and brain malformations have microdeletions encompassing DLL1, we hypothesized that insufficiency of DLL1 causes a human neurodevelopmental disorder. We performed exome sequencing in individuals with neurodevelopmental disorders. The cohort was identified using known Matchmaker Exchange nodes such as GeneMatcher. This method identified 15 individuals from 12 unrelated families with heterozygous pathogenic DLL1 variants (nonsense, missense, splice site, and one whole gene deletion). The most common features in our cohort were intellectual disability, autism spectrum disorder, seizures, variable brain malformations, muscular hypotonia, and scoliosis. We did not identify an obvious genotype-phenotype correlation. Analysis of one splice site variant showed an in-frame insertion of 12 bp. In conclusion, heterozygous DLL1 pathogenic variants cause a variable neurodevelopmental phenotype and multi-systemic features. The clinical and molecular data support haploinsufficiency as a mechanism for the pathogenesis of this DLL1-related disorder and affirm the importance of DLL1 in human brain development.
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25
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Lin HC, Ching YH, Huang CC, Pao PC, Lee YH, Chang WC, Kao TJ, Lee YC. Promyelocytic leukemia zinc finger is involved in the formation of deep layer cortical neurons. J Biomed Sci 2019; 26:30. [PMID: 31027502 PMCID: PMC6485146 DOI: 10.1186/s12929-019-0519-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 04/11/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Promyelocytic leukemia zinc finger (Plzf), a transcriptional regulator involved in a lot of important biological processes during development, has been implied to maintain neural stem cells and inhibit their differentiation into neurons. However, the effects of Plzf on brain structures and functions are still not clarified. RESULTS We showed that Plzf expression was detected as early as embryonic day (E) 9.5 in Pax6+ cells in the mouse brain, and was completely disappeared in telencephalon before the initiation of cortical neurogenesis. Loss of Plzf resulted in a smaller cerebral cortex with a decrease in the number of Tbr1+ deep layer neurons due to a decrease of mitotic cell number in the ventricular zone of forebrain at early developmental stage. Microarray, qRT-PCR, and flow cytometry analysis identified dysregulation of Mash1 proneural gene expression. We also observed an impairment of recognition memory in Plzf-deficient mice. CONCLUSIONS Plzf is expressed at early stages of brain development and involved in the formation of deep layer cortical neurons. Loss of Plzf results in dysregulation of Mash1, microcephaly with reduced numbers of early-born neurons, and impairment of recognition memory.
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Affiliation(s)
- Hsin-Chuan Lin
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yung-Hao Ching
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan
| | - Chi-Chen Huang
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Ping-Chieh Pao
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Hua Lee
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Chang Chang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tzu-Jen Kao
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan. .,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.
| | - Yi-Chao Lee
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan. .,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan. .,Ph.D Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
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26
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Colasante G, Rubio A, Massimino L, Broccoli V. Direct Neuronal Reprogramming Reveals Unknown Functions for Known Transcription Factors. Front Neurosci 2019; 13:283. [PMID: 30971887 PMCID: PMC6445133 DOI: 10.3389/fnins.2019.00283] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 03/11/2019] [Indexed: 12/25/2022] Open
Abstract
In recent years, the need to derive sources of specialized cell types to be employed for cell replacement therapies and modeling studies has triggered a fast acceleration of novel cell reprogramming methods. In particular, in neuroscience, a number of protocols for the efficient differentiation of somatic or pluripotent stem cells have been established to obtain a renewable source of different neuronal cell types. Alternatively, several neuronal populations have been generated through direct reprogramming/transdifferentiation, which concerns the conversion of fully differentiated somatic cells into induced neurons. This is achieved through the forced expression of selected transcription factors (TFs) in the donor cell population. The reprogramming cocktail is chosen after an accurate screening process involving lists of TFs enriched into desired cell lineages. In some instances, this type of studies has revealed the crucial role of TFs whose function in the differentiation of a given specific cell type had been neglected or underestimated. Herein, we will speculate on how the in vitro studies have served to better understand physiological mechanisms of neuronal development in vivo.
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Affiliation(s)
- Gaia Colasante
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy
| | - Alicia Rubio
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy.,CNR Institute of Neuroscience, Milan, Italy
| | - Luca Massimino
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy
| | - Vania Broccoli
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy.,CNR Institute of Neuroscience, Milan, Italy
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27
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Alzu'bi A, Clowry GJ. Expression of ventral telencephalon transcription factors ASCL1 and DLX2 in the early fetal human cerebral cortex. J Anat 2019; 235:555-568. [PMID: 30861584 PMCID: PMC6704271 DOI: 10.1111/joa.12971] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2019] [Indexed: 01/21/2023] Open
Abstract
In rodent ventral telencephalon, diffusible morphogens induce expression of the proneural transcription factor ASCL1, which in turn induces expression of the transcription factor DLX2 that controls differentiation of cortical interneuron precursors and their tangential migration to the cerebral cortex. RNAseq analysis of human fetal samples of dorsal telencephalon revealed consistently high cortical expression of ASCL1 and increasing expression of DLX2 between 7.5 and 17 post‐conceptional weeks (PCW). We explored whether cortical expression of these genes represented a population of intracortically derived interneuron precursors. Immunohistochemistry revealed an ASCL1+/DLX2+ population of progenitor cells in the human ganglionic eminences between 6.5 and 12 PCW, but in the cortex there also existed a population of ASCL1+/DLX2– progenitors in the subventricular zone (SVZ) that largely co‐expressed cortical markers PAX6 or TBR2, although a few ASCL1+/PAX6– progenitors were observed in the ventricular zone (VZ) and ASCL1+ cells expressing the interneuron marker GAD67 were present in the SVZ. Although rare in the VZ, DLX2+ cells progressively increased in number between 8 and 12 PCW across the cortical wall and the majority co‐expressed LHX6 and originated either in the MGE, migrating to the lateral cortex, or from the septum, populating the medial wall. A minority co‐expressed COUP‐TFII, which identifies cells from the caudal ganglionic eminence (CGE). By 19 PCW, a significant increase in expression of DLX2 and ASCL1 was observed in the cortical VZ with a small proportion expressing both proteins. The DLX2+ cells did not co‐express a cell division marker, so were not progenitors. The majority of DLX2+ cells throughout the cortical plate expressed COUP‐TFII rather than LHX6+. As the VZ declined as a proliferative zone it appeared to be re‐defined as a migration pathway for COUP‐TFII+/DLX2+ interneurons from CGE to cortex. Therefore, in developing human cortex, ASCL1 expression predominantly marks a population of intermediate progenitors giving rise to glutamatergic neurons. DLX2 expression predominantly defines post‐mitotic interneuron precursors.
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Affiliation(s)
- Ayman Alzu'bi
- The institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK.,The Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK.,The Department of Basic Medical Sciences, Yarmouk University, Irbid, Jordan
| | - Gavin J Clowry
- The institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
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28
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Chytoudis-Peroudis CC, Siskos N, Kalyviotis K, Fysekis I, Ypsilantis P, Simopoulos C, Skavdis G, Grigoriou ME. Spatial distribution of the full-length members of the Grg family during embryonic neurogenesis reveals a "Grg-mediated repression map" in the mouse telencephalon. PLoS One 2018; 13:e0209369. [PMID: 30571765 PMCID: PMC6301688 DOI: 10.1371/journal.pone.0209369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Accepted: 12/04/2018] [Indexed: 11/25/2022] Open
Abstract
The full-length members of the Groucho/Transducin-like Enhancer of split gene family, namely Grg1-4, encode nuclear corepressors that act either directly, via interaction with transcription factors, or indirectly by modifying histone acetylation or chromatin structure. In this work we describe a detailed expression analysis of Grg1-4 family members during embryonic neurogenesis in the developing murine telencephalon. Grg1-4 presented a unique, complex yet overlapping expression pattern; Grg1 and Grg3 were mainly detected in the proliferative zones of the telencephalon, Grg2 mainly in the subpallium and finally, Grg4 mainly in the subpallial post mitotic neurons. In addition, comparative analysis of the expression of Grg1-4 revealed that, at these stages, distinct telencephalic progenitor domains or structures are characterized by the presence of different combinations of Grg repressors, thus forming a “Grg-mediated repression map”.
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Affiliation(s)
| | - Nikistratos Siskos
- Department of Molecular Biology & Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Konstantinos Kalyviotis
- Department of Molecular Biology & Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Ioannis Fysekis
- Department of Molecular Biology & Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Petros Ypsilantis
- School of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - George Skavdis
- Department of Molecular Biology & Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Maria E. Grigoriou
- Department of Molecular Biology & Genetics, Democritus University of Thrace, Alexandroupolis, Greece
- * E-mail:
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29
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Gay SM, Brett CA, Stinson JPC, Gabriele ML. Alignment of EphA4 and ephrin-B2 expression patterns with developing modularity in the lateral cortex of the inferior colliculus. J Comp Neurol 2018; 526:2706-2721. [PMID: 30156295 DOI: 10.1002/cne.24525] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/31/2018] [Accepted: 08/21/2018] [Indexed: 01/26/2023]
Abstract
In the multimodal lateral cortex of the inferior colliculus (LCIC), there are two neurochemically and connectionally distinct compartments, termed modular and extramodular zones. Modular fields span LCIC layer 2 and are recipients of somatosensory afferents, while encompassing extramodular domains receive auditory inputs. Recently, in developing mice, we identified several markers (among them glutamic acid decarboxylase, GAD) that consistently label the same modular set, and a reliable extramodular marker, calretinin, (CR). Previous reports from our lab show similar modular-extramodular patterns for certain Eph-ephrin guidance members, although their precise alignment with the developing LCIC neurochemical framework has yet to be addressed. Here we confirm in the nascent LCIC complementary GAD/CR-positive compartments, and characterize the registry of EphA4 and ephrin-B2 expression patterns with respect to its emerging modular-extramodular organization. Immunocytochemical approaches in GAD67-GFP knock-in mice reveal patchy EphA4 and ephrin-B2 domains that precisely align with GAD-positive LCIC modules, and are complementary to CR-defined extramodular zones. Such patterning was detectable neonatally, yielding discrete compartments prior to hearing onset. A dense plexus of EphA4-positive fibers filled modules, surrounding labeled ephrin-B2 and GAD cell populations. The majority of observed GABAergic neurons within modular boundaries were also positive for ephrin-B2. These results suggest an early compartmentalization of the LCIC that is likely instructed in part through Eph-ephrin guidance mechanisms. The overlap of developing LCIC neurochemical and guidance patterns is discussed in the context of its seemingly segregated multimodal input-output streams.
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Affiliation(s)
- Sean M Gay
- Department of Biology, James Madison University, Harrisonburg, Virginia
| | - Cooper A Brett
- Department of Biology, James Madison University, Harrisonburg, Virginia
| | | | - Mark L Gabriele
- Department of Biology, James Madison University, Harrisonburg, Virginia
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30
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Kelly SM, Raudales R, He M, Lee JH, Kim Y, Gibb LG, Wu P, Matho K, Osten P, Graybiel AM, Huang ZJ. Radial Glial Lineage Progression and Differential Intermediate Progenitor Amplification Underlie Striatal Compartments and Circuit Organization. Neuron 2018; 99:345-361.e4. [PMID: 30017396 PMCID: PMC6094944 DOI: 10.1016/j.neuron.2018.06.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 03/20/2018] [Accepted: 06/12/2018] [Indexed: 12/12/2022]
Abstract
The circuitry of the striatum is characterized by two organizational plans: the division into striosome and matrix compartments, thought to mediate evaluation and action, and the direct and indirect pathways, thought to promote or suppress behavior. The developmental origins of these organizations and their developmental relationships are unknown, leaving a conceptual gap in understanding the cortico-basal ganglia system. Through genetic fate mapping, we demonstrate that striosome-matrix compartmentalization arises from a lineage program embedded in lateral ganglionic eminence radial glial progenitors mediating neurogenesis through two distinct types of intermediate progenitors (IPs). The early phase of this program produces striosomal spiny projection neurons (SPNs) through fate-restricted apical IPs (aIPSs) with limited capacity; the late phase produces matrix SPNs through fate-restricted basal IPs (bIPMs) with expanded capacity. Notably, direct and indirect pathway SPNs arise within both aIPS and bIPM pools, suggesting that striosome-matrix architecture is the fundamental organizational plan of basal ganglia circuitry.
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Affiliation(s)
- Sean M Kelly
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA; Program in Neuroscience and Medical Scientist Training Program, Stony Brook University, Stony Brook, NY 11790, USA
| | - Ricardo Raudales
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA; Program in Neuroscience, Stony Brook University, Stony Brook, NY 11790, USA
| | - Miao He
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Jannifer H Lee
- McGovern Institute for Brain Research and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yongsoo Kim
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Leif G Gibb
- McGovern Institute for Brain Research and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Priscilla Wu
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Katherine Matho
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Pavel Osten
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Ann M Graybiel
- McGovern Institute for Brain Research and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Z Josh Huang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.
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31
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Xu Z, Liang Q, Song X, Zhang Z, Lindtner S, Li Z, Wen Y, Liu G, Guo T, Qi D, Wang M, Wang C, Li H, You Y, Wang X, Chen B, Feng H, Rubenstein JL, Yang Z. SP8 and SP9 coordinately promote D2-type medium spiny neuron production by activating Six3 expression. Development 2018; 145:dev165456. [PMID: 29967281 PMCID: PMC6078334 DOI: 10.1242/dev.165456] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 06/18/2018] [Indexed: 12/21/2022]
Abstract
Dopamine receptor DRD1-expressing medium spiny neurons (D1 MSNs) and dopamine receptor DRD2-expressing medium spiny neurons (D2 MSNs) are the principal projection neurons in the striatum, which is divided into dorsal striatum (caudate nucleus and putamen) and ventral striatum (nucleus accumbens and olfactory tubercle). Progenitors of these neurons arise in the lateral ganglionic eminence (LGE). Using conditional deletion, we show that mice lacking the transcription factor genes Sp8 and Sp9 lose virtually all D2 MSNs as a result of reduced neurogenesis in the LGE, whereas D1 MSNs are largely unaffected. SP8 and SP9 together drive expression of the transcription factor Six3 in a spatially restricted domain of the LGE subventricular zone. Conditional deletion of Six3 also prevents the formation of most D2 MSNs, phenocopying the Sp8/9 mutants. Finally, ChIP-Seq reveals that SP9 directly binds to the promoter and a putative enhancer of Six3 Thus, this study defines components of a transcription pathway in a regionally restricted LGE progenitor domain that selectively drives the generation of D2 MSNs.
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Affiliation(s)
- Zhejun Xu
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qifei Liang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xiaolei Song
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhuangzhi Zhang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Susan Lindtner
- Department of Psychiatry, Nina Ireland Laboratory of Developmental Neurobiology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Zhenmeiyu Li
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yan Wen
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Guoping Liu
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Teng Guo
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Dashi Qi
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Min Wang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Chunyang Wang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Hao Li
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yan You
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xin Wang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Bin Chen
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, CA 95064, USA
| | - Hua Feng
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - John L Rubenstein
- Department of Psychiatry, Nina Ireland Laboratory of Developmental Neurobiology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, CA 94158, USA
| | - Zhengang Yang
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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32
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Song M, Kim H, Park S, Kwon H, Joung I, Kim Kwon Y. Aucubin Promotes Differentiation of Neural Precursor Cells into GABAergic Neurons. Exp Neurobiol 2018; 27:112-119. [PMID: 29731677 PMCID: PMC5934542 DOI: 10.5607/en.2018.27.2.112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 02/26/2018] [Accepted: 02/28/2018] [Indexed: 12/13/2022] Open
Abstract
Aucubin is a small compound naturally found in traditional medicinal herbs with primarily anti-inflammatory and protective effects. In the nervous system, aucubin is reported to be neuroprotective by enhancing neuronal survival and inhibiting apoptotic cell death in cultures and disease models. Our previous data, however, suggest that aucubin facilitates neurite elongation in cultured hippocampal neurons and axonal regrowth in regenerating sciatic nerves. Here, we investigated whether aucubin facilitates the differentiation of neural precursor cells (NPCs) into specific types of neurons. In NPCs cultured primarily from the rat embryonic hippocampus, aucubin significantly elevated the number of GAD65/67 immunoreactive cells and the expression of GAD65/67 proteins was upregulated dramatically by more than three-fold at relatively low concentrations of aucubin (0.01 µM to 10 µM). The expression of both NeuN and vGluT1 of NPCs, the markers for neurons and glutamatergic cells, respectively, and the number of vGluT1 immunoreactive cells also increased with higher concentrations of aucubin (1 µM and 10 µM), but the ratio of the increases was largely lower than GAD expression and GAD immunoreactive cells. The GABAergic differentiation of pax6-expressing late NPCs into GABA-producing cells was further supported in cortical NPCs primarily cultured from transgenic mouse brains, which express recombinant GFP under the control of pax6 promoter. The results suggest that aucubin can be developed as a therapeutic candidate for neurodegenerative disorders caused by the loss of inhibitory GABAergic neurons.
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Affiliation(s)
- Miyeoun Song
- Department of Life and Nanopharmarceutical Science, Kyung Hee University, Seoul 02447, Korea
| | - Hyomin Kim
- Department of Life and Nanopharmarceutical Science, Kyung Hee University, Seoul 02447, Korea
| | - Sujin Park
- Department of Life and Nanopharmarceutical Science, Kyung Hee University, Seoul 02447, Korea
| | - Hyockman Kwon
- Department of Biosciences and Biotechnology, Hankuk University of Foreign Studies, Yongin 17035, Korea
| | - Insil Joung
- Department of Biological Sciences, Hanseo University, Seosan 31962, Korea
| | - Yunhee Kim Kwon
- Department of Life and Nanopharmarceutical Science, Kyung Hee University, Seoul 02447, Korea.,Department of Biology, Kyung Hee University, Seoul 02447, Korea
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33
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Chouchane M, Costa MR. Instructing neuronal identity during CNS development and astroglial-lineage reprogramming: Roles of NEUROG2 and ASCL1. Brain Res 2018; 1705:66-74. [PMID: 29510143 DOI: 10.1016/j.brainres.2018.02.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/16/2018] [Accepted: 02/27/2018] [Indexed: 01/02/2023]
Abstract
The adult mammalian brain contains an enormous variety of neuronal types, which are generally categorized in large groups, based on their neurochemical identity, hodological properties and molecular markers. This broad classification has allowed the correlation between individual neural progenitor populations and their neuronal progeny, thus contributing to probe the cellular and molecular mechanisms involved in neuronal identity determination during central nervous system (CNS) development. In this review, we discuss the contribution of the proneural genes Neurogenin2 (Neurog2) and Achaete-scute homolog 1 (Ascl1) for the specification of neuronal phenotypes in the developing neocortex, cerebellum and retina. Then, we revise recent data on astroglia cell lineage reprogramming into induced neurons using the same proneural proteins to compare the neuronal phenotypes obtained from astroglial cells originated in those CNS regions. We conclude that Ascl1 and Neurog2 have different contributions to determine neuronal fates, depending on the neural progenitor or astroglial population expressing those proneural factors. Finally, we discuss some possible explanations for these seemingly conflicting effects of Ascl1 and Neurog2 and propose future approaches to further dissect the molecular mechanisms of neuronal identity specification.
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Affiliation(s)
- Malek Chouchane
- Brain Institute, Federal University of Rio Grande do Norte, Natal 59072-970, Brazil; Neurological Surgery Department, University of California, San Francisco 94158, USA
| | - Marcos R Costa
- Brain Institute, Federal University of Rio Grande do Norte, Natal 59072-970, Brazil.
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34
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Yang Y, Shen W, Ni Y, Su Y, Yang Z, Zhao C. Impaired Interneuron Development after Foxg1 Disruption. Cereb Cortex 2018; 27:793-808. [PMID: 26620267 DOI: 10.1093/cercor/bhv297] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Interneurons play pivotal roles in the modulation of cortical function; however, the mechanisms that control interneuron development remain unclear. This study aimed to explore a new role for Foxg1 in interneuron development. By crossing Foxg1fl/fl mice with a Dlx5/6-Cre line, we determined that conditional disruption of Foxg1 in the subpallium results in defects in interneuron development. In developing interneurons, the expression levels of several receptors, including roundabout-1, Eph receptor A4, and C-X-C motif receptor 4/7, were strongly downregulated, which led to migration defects after Foxg1 ablation. The transcription factors Dlx1/2 and Mash1, which have been reported to be involved in interneuron development, were significantly upregulated at the mRNA levels. Foxg1 mutant cells developed shorter neurites and fewer branches and displayed severe migration defects in vitro. Notably, Prox1, which is a transcription factor that functions as a key regulator in the development of excitatory neurons, was also dramatically upregulated at both the mRNA and protein levels, suggesting that Prox1 is also important for interneuron development. Our work demonstrates that Foxg1 may act as a critical upstream regulator of Dlx1/2, Mash1, and Prox1 to control interneuron development. These findings will further our understanding of the molecular mechanisms of interneuron development.
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Affiliation(s)
- Ying Yang
- Key Laboratory of Developmental Genes and Human Diseases, MOE, Department of Anatomy and Neuroscience, School of Medicine, Southeast University, Nanjing 210009, China
| | - Wei Shen
- Key Laboratory of Developmental Genes and Human Diseases, MOE, Department of Anatomy and Neuroscience, School of Medicine, Southeast University, Nanjing 210009, China
| | - Yang Ni
- Key Laboratory of Developmental Genes and Human Diseases, MOE, Department of Anatomy and Neuroscience, School of Medicine, Southeast University, Nanjing 210009, China
| | - Yan Su
- Key Laboratory of Developmental Genes and Human Diseases, MOE, Department of Anatomy and Neuroscience, School of Medicine, Southeast University, Nanjing 210009, China
| | - Zhengang Yang
- Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Chunjie Zhao
- Key Laboratory of Developmental Genes and Human Diseases, MOE, Department of Anatomy and Neuroscience, School of Medicine, Southeast University, Nanjing 210009, China.,Center of Depression, Beijing Institute for Brain Disorders, Beijing 100069, China
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35
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Qin W, Chen S, Yang S, Xu Q, Xu C, Cai J. The Effect of Traditional Chinese Medicine on Neural Stem Cell Proliferation and Differentiation. Aging Dis 2017; 8:792-811. [PMID: 29344417 PMCID: PMC5758352 DOI: 10.14336/ad.2017.0428] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/28/2017] [Indexed: 12/12/2022] Open
Abstract
Neural stem cells (NSCs) are special types of cells with the potential for self-renewal and multi-directional differentiation. NSCs are regulated by multiple pathways and pathway related transcription factors during the process of proliferation and differentiation. Numerous studies have shown that the compound medicinal preparations, single herbs, and herb extracts in traditional Chinese medicine (TCM) have specific roles in regulating the proliferation and differentiation of NSCs. In this study, we investigate the markers of NSCs in various stages of differentiation, the related pathways regulating the proliferation and differentiation, and the corresponding transcription factors in the pathways. We also review the influence of TCM on NSC proliferation and differentiation, to facilitate the development of TCM in neural regeneration and neurodegenerative diseases.
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Affiliation(s)
- Wei Qin
- 1Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Shiya Chen
- 1Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Shasha Yang
- 1Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Qian Xu
- 2College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Chuanshan Xu
- 3School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Jing Cai
- 2College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
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36
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Hu JS, Vogt D, Sandberg M, Rubenstein JL. Cortical interneuron development: a tale of time and space. Development 2017; 144:3867-3878. [PMID: 29089360 DOI: 10.1242/dev.132852] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cortical interneurons are a diverse group of neurons that project locally and are crucial for regulating information processing and flow throughout the cortex. Recent studies in mice have advanced our understanding of how these neurons are specified, migrate and mature. Here, we evaluate new findings that provide insights into the development of cortical interneurons and that shed light on when their fate is determined, on the influence that regional domains have on their development, and on the role that key transcription factors and other crucial regulatory genes play in these events. We focus on cortical interneurons that are derived from the medial ganglionic eminence, as most studies have examined this interneuron population. We also assess how these data inform our understanding of neuropsychiatric disease and discuss the potential role of cortical interneurons in cell-based therapies.
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Affiliation(s)
- Jia Sheng Hu
- Department of Psychiatry, University of California, San Francisco, CA 94158, USA.,Nina Ireland Laboratory of Developmental Neurobiology, University of California, San Francisco, CA 94158, USA
| | - Daniel Vogt
- Department of Psychiatry, University of California, San Francisco, CA 94158, USA.,Nina Ireland Laboratory of Developmental Neurobiology, University of California, San Francisco, CA 94158, USA
| | - Magnus Sandberg
- Department of Psychiatry, University of California, San Francisco, CA 94158, USA.,Nina Ireland Laboratory of Developmental Neurobiology, University of California, San Francisco, CA 94158, USA
| | - John L Rubenstein
- Department of Psychiatry, University of California, San Francisco, CA 94158, USA .,Nina Ireland Laboratory of Developmental Neurobiology, University of California, San Francisco, CA 94158, USA
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37
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Podleśny-Drabiniok A, Sobska J, de Lera AR, Gołembiowska K, Kamińska K, Dollé P, Cebrat M, Krężel W. Distinct retinoic acid receptor (RAR) isotypes control differentiation of embryonal carcinoma cells to dopaminergic or striatopallidal medium spiny neurons. Sci Rep 2017; 7:13671. [PMID: 29057906 PMCID: PMC5651880 DOI: 10.1038/s41598-017-13826-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/26/2017] [Indexed: 01/03/2023] Open
Abstract
Embryonal carcinoma (EC) cells are pluripotent stem cells extensively used for studies of cell differentiation. Although retinoic acid (RA) is a powerful inducer of neurogenesis in EC cells, it is not clear what specific neuronal subtypes are generated and whether different RAR isotypes may contribute to such neuronal diversification. Here we show that RA treatment during EC embryoid body formation is a highly robust protocol for generation of striatal-like GABAergic neurons which display molecular characteristics of striatopallidal medium spiny neurons (MSNs), including expression of functional dopamine D2 receptor. By using RARα, β and γ selective agonists we show that RARγ is the functionally dominant RAR in mediating RA control of early molecular determinants of MSNs leading to formation of striatopallidal-like neurons. In contrast, activation of RARα is less efficient in generation of this class of neurons, but is essential for differentiation of functional dopaminergic neurons, which may correspond to a subpopulation of inhibitory dopaminergic neurons expressing glutamic acid decarboxylase in vivo.
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Affiliation(s)
- Anna Podleśny-Drabiniok
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.,Institut de la Santé et de la Recherche Médicale, U964, Illkirch, France.,Centre National de la Recherche Scientifique, UMR 7104, Illkirch, France.,Université de Strasbourg, Illkirch, France.,Laboratory of Molecular and Cellular Immunology, Department of Tumor Immunology, L. Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wroclaw, Poland
| | - Joanna Sobska
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.,Institut de la Santé et de la Recherche Médicale, U964, Illkirch, France.,Centre National de la Recherche Scientifique, UMR 7104, Illkirch, France.,Université de Strasbourg, Illkirch, France.,Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370, Wroclaw, Poland
| | - Angel R de Lera
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, Vigo, Spain
| | - Krystyna Gołembiowska
- Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Katarzyna Kamińska
- Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Pascal Dollé
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France.,Institut de la Santé et de la Recherche Médicale, U964, Illkirch, France.,Centre National de la Recherche Scientifique, UMR 7104, Illkirch, France.,Université de Strasbourg, Illkirch, France
| | - Małgorzata Cebrat
- Laboratory of Molecular and Cellular Immunology, Department of Tumor Immunology, L. Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wroclaw, Poland
| | - Wojciech Krężel
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France. .,Institut de la Santé et de la Recherche Médicale, U964, Illkirch, France. .,Centre National de la Recherche Scientifique, UMR 7104, Illkirch, France. .,Université de Strasbourg, Illkirch, France.
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38
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Tinterri A, Deck M, Keita M, Mailhes C, Rubin AN, Kessaris N, Lokmane L, Bielle F, Garel S. Tangential migration of corridor guidepost neurons contributes to anxiety circuits. J Comp Neurol 2017; 526:397-411. [DOI: 10.1002/cne.24330] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 08/31/2017] [Accepted: 09/01/2017] [Indexed: 02/04/2023]
Affiliation(s)
- Andrea Tinterri
- IBENS, Département de Biologie; École normale supérieure, CNRS, Inserm, PSL Research University; Paris France
- Brain Development and Plasticity Team
- Boehringer Ingelheim Fonds, Foundation for Basic Research in Medicine; Mainz Germany
- Ecole de Neurosciences de Paris-Ile de France; Paris France
| | - Marie Deck
- IBENS, Département de Biologie; École normale supérieure, CNRS, Inserm, PSL Research University; Paris France
- Brain Development and Plasticity Team
| | - Maryama Keita
- IBENS, Département de Biologie; École normale supérieure, CNRS, Inserm, PSL Research University; Paris France
- Brain Development and Plasticity Team
| | - Caroline Mailhes
- IBENS, Département de Biologie; École normale supérieure, CNRS, Inserm, PSL Research University; Paris France
- Acute Transgenesis Facility
| | - Anna Noren Rubin
- University College of London, Wolfson Institute for Biomedical Research, Department of Cell and Developmental Biology; London United Kingdom
| | - Nicoletta Kessaris
- University College of London, Wolfson Institute for Biomedical Research, Department of Cell and Developmental Biology; London United Kingdom
| | - Ludmilla Lokmane
- IBENS, Département de Biologie; École normale supérieure, CNRS, Inserm, PSL Research University; Paris France
- Brain Development and Plasticity Team
| | - Franck Bielle
- IBENS, Département de Biologie; École normale supérieure, CNRS, Inserm, PSL Research University; Paris France
- Brain Development and Plasticity Team
- AP-HP, Hôpitaux Universitaires Pitié-Salpêtrière Charles Foix, Service de Neuropathologie; Paris France
| | - Sonia Garel
- IBENS, Département de Biologie; École normale supérieure, CNRS, Inserm, PSL Research University; Paris France
- Brain Development and Plasticity Team
- Ecole de Neurosciences de Paris-Ile de France; Paris France
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39
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Subpallial Enhancer Transgenic Lines: a Data and Tool Resource to Study Transcriptional Regulation of GABAergic Cell Fate. Neuron 2017; 92:59-74. [PMID: 27710791 DOI: 10.1016/j.neuron.2016.09.027] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 04/22/2016] [Accepted: 09/02/2016] [Indexed: 01/08/2023]
Abstract
Elucidating the transcriptional circuitry controlling forebrain development requires an understanding of enhancer activity and regulation. We generated stable transgenic mouse lines that express CreERT2 and GFP from ten different enhancer elements with activity in distinct domains within the embryonic basal ganglia. We used these unique tools to generate a comprehensive regional fate map of the mouse subpallium, including sources for specific subtypes of amygdala neurons. We then focused on deciphering transcriptional mechanisms that control enhancer activity. Using machine-learning computations, in vivo chromosomal occupancy of 13 transcription factors that regulate subpallial patterning and differentiation and analysis of enhancer activity in Dlx1/2 and Lhx6 mutants, we elucidated novel molecular mechanisms that regulate region-specific enhancer activity in the developing brain. Thus, these subpallial enhancer transgenic lines are data and tool resources to study transcriptional regulation of GABAergic cell fate.
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40
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Laclef C, Métin C. Conserved rules in embryonic development of cortical interneurons. Semin Cell Dev Biol 2017; 76:86-100. [PMID: 28918121 DOI: 10.1016/j.semcdb.2017.09.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 09/08/2017] [Accepted: 09/11/2017] [Indexed: 12/24/2022]
Abstract
This review will focus on early aspects of cortical interneurons (cIN) development from specification to migration and final positioning in the human cerebral cortex. These mechanisms have been largely studied in the mouse model, which provides unique possibilities of genetic analysis, essential to dissect the molecular and cellular events involved in cortical development. An important goal here is to discuss the conservation and the potential divergence of these mechanisms, with a particular interest for the situation in the human embryo. We will thus cover recent works, but also revisit older studies in the light of recent data to better understand the developmental mechanisms underlying cIN differentiation in human. Because cIN are implicated in severe developmental disorders, understanding the molecular and cellular mechanisms controlling their differentiation might clarify some causes and potential therapeutic approaches to these important clinical conditions.
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Affiliation(s)
- Christine Laclef
- INSERM, UMR-S839, Paris, France; Sorbonne Universités, UPMC University Paris 6, UMR-S839, Paris, France; Institut du Fer à Moulin, Paris, France
| | - Christine Métin
- INSERM, UMR-S839, Paris, France; Sorbonne Universités, UPMC University Paris 6, UMR-S839, Paris, France; Institut du Fer à Moulin, Paris, France.
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41
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Kohli V, Nardini D, Ehrman LA, Waclaw RR. Characterization of Glcci1 expression in a subpopulation of lateral ganglionic eminence progenitors in the mouse telencephalon. Dev Dyn 2017; 247:222-228. [PMID: 28744915 DOI: 10.1002/dvdy.24556] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/17/2017] [Accepted: 07/17/2017] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND The lateral ganglionic eminence (LGE) in the ventral telencephalon is a diverse progenitor domain subdivided by distinct gene expression into a dorsal region (dLGE) that gives rise to olfactory bulb and amygdalar interneurons and a ventral region (vLGE) that gives rise to striatal projection neurons. The homeobox gene, Gsx2, is an enriched marker of the LGE and is expressed in a high dorsal to low ventral gradient in the ventricular zone (VZ) as development proceeds. Aside from Gsx2, markers restricted to the VZ in the dLGE and/or vLGE remain largely unknown. RESULTS Here, we show that the gene and protein expression of Glucocorticoid-induced transcript 1 (Glcci1) has a similar dorsal to ventral gradient of expression in the VZ as Gsx2. We found that Glcci1 gene and protein expression are reduced in Gsx2 mutants, and are increased in the cortex after early and late Gsx2 misexpression. Moreover, Glcci1 expressing cells are restricted to a subpopulation of Gsx2 positive cells on the basal side of the VZ and co-express Ascl1, but not the subventricular zone dLGE marker, Sp8. CONCLUSIONS These findings suggest that Glcci1 is a new marker of a subpopulation of LGE VZ progenitor cells in the Gsx2 lineage. Developmental Dynamics 247:222-228, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Vikram Kohli
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Diana Nardini
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Lisa A Ehrman
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Ronald R Waclaw
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.,Divisions of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
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42
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Guerrero-Flores G, Bastidas-Ponce A, Collazo-Navarrete O, Guerra-Crespo M, Covarrubias L. Functional determination of the differentiation potential of ventral mesencephalic neural precursor cells during dopaminergic neurogenesis. Dev Biol 2017; 429:56-70. [PMID: 28733161 DOI: 10.1016/j.ydbio.2017.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 07/17/2017] [Accepted: 07/17/2017] [Indexed: 11/29/2022]
Abstract
The ventral mesencephalic neural precursor cells (vmNPCs) that give rise to dopaminergic (DA) neurons have been identified by the expression of distinct genes (e.g., Lmx1a, Foxa2, Msx1/2). However, the commitment of these NPCs to the mesencephalic DA neuronal fate has not been functionally determined. Evaluation of the plasticity of vmNPCs suggests that their commitment occurs after E10.5. Here we show that E9.5 vmNPCs implanted in an ectopic area of E10.5 mesencephalic explants, retained their specification marker Lmx1a and efficiently differentiated into neurons but did not express the gene encoding tyrosine hydroxylase (Th), the limiting enzyme for dopamine synthesis. A proportion of E10.5-E11.5 implanted vmNPCs behaved as committed, deriving into Th+ neurons in ectopic sites. Interestingly, implanted cells from E12.5 embryos were unable to give rise to a significant number of Th+ neurons. Concomitantly, differentiation assays in culture and in mesencephalic explants treated with Fgf2+LIF detected vmNPCs with astrogenic potential since E11.5. Despite this, a full suspension of E12.5 vmNPCs give rise to DA neurons in a similar proportion as those of E10.5 when they were transplanted into adult brain, but astrocytes were only detected with the former population. These data suggest that the subventricular postmitotic progenitors present in E12.5 ventral mesencephalon are unable to implant in embryonic explants and are the source of DA neurons in the transplanted adult brain. Based on our findings we propose that during DA differentiation committed vmNPCs emerge at E10.5 and they exhaust their neurogenic capacity with the rise of NPCs with astrogenic potential.
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Affiliation(s)
- Gilda Guerrero-Flores
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62210, Mexico
| | - Aimée Bastidas-Ponce
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62210, Mexico
| | - Omar Collazo-Navarrete
- Department of Molecular Neuropathology, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico
| | - Magdalena Guerra-Crespo
- Department of Molecular Neuropathology, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico
| | - Luis Covarrubias
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62210, Mexico.
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43
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Solek CM, Feng S, Perin S, Weinschutz Mendes H, Ekker M. Lineage tracing of dlx1a/2a and dlx5a/6a expressing cells in the developing zebrafish brain. Dev Biol 2017; 427:131-147. [PMID: 28479339 DOI: 10.1016/j.ydbio.2017.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 04/28/2017] [Accepted: 04/29/2017] [Indexed: 02/06/2023]
Abstract
Lineage tracing of specific populations of progenitor cells provides crucial information about developmental programs. Four members of the Dlx homeobox gene family, Dlx1,2, 5 and 6, are involved in the specification of γ-aminobutyric acid (GABA)ergic neurons in the vertebrate forebrain. Orthologous genes in mammals and teleost show similarities in expression patterns and transcriptional regulation mechanisms. We have used lineage tracing to permanently label dlx-expressing cells in the zebrafish and have characterized the progeny of these cells in the larva and in the juvenile and adult brain. We have found that dlx1a/2a and dlx5a/6a expressing progenitors give rise, for the most part, to small populations of cells which constitute only a small proportion of GABAergic cells in the adult brain tissue. Moreover, some of the cells do not acquire a neuronal phenotype suggesting that, regardless of the time a cell expresses dlx genes in the brain, it can potentially give rise to cells other than neurons. In some instances, labeling larval dlx5a/6a-expressing cells, but not dlx1a/2a-expressing cells, results in massively expanding, widespread clonal expansion throughout the adult brain. Our data provide a detailed lineage analysis of the dlx1a/2a and dlx5a/6a expressing progenitors in the zebrafish brain and lays the foundation for further characterization of the role of these transcription factors beyond the specification of GABAergic neurons.
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Affiliation(s)
- Cynthia M Solek
- CAREG, Department of Biology, University of Ottawa, 20 Marie-Curie Private, Ottawa, ON, Canada K1N 6N5; Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, QC, Canada H3A 2B4
| | - Shengrui Feng
- CAREG, Department of Biology, University of Ottawa, 20 Marie-Curie Private, Ottawa, ON, Canada K1N 6N5; Department of Medical Biophysics, University of Toronto, 610 University Avenue, Toronto, ON, Canada M5G 2M9
| | - Sofia Perin
- CAREG, Department of Biology, University of Ottawa, 20 Marie-Curie Private, Ottawa, ON, Canada K1N 6N5
| | - Hellen Weinschutz Mendes
- CAREG, Department of Biology, University of Ottawa, 20 Marie-Curie Private, Ottawa, ON, Canada K1N 6N5
| | - Marc Ekker
- CAREG, Department of Biology, University of Ottawa, 20 Marie-Curie Private, Ottawa, ON, Canada K1N 6N5.
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44
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Merchan-Sala P, Nardini D, Waclaw RR, Campbell K. Selective neuronal expression of the SoxE factor, Sox8, in direct pathway striatal projection neurons of the developing mouse brain. J Comp Neurol 2017; 525:2805-2819. [PMID: 28472858 DOI: 10.1002/cne.24232] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/11/2017] [Accepted: 04/12/2017] [Indexed: 01/24/2023]
Abstract
The striatum is the major component of the basal ganglia and is well known to play a key role in the control of motor function via balanced output from the indirect (iSPNs) and direct pathway striatal projection neurons (dSPNs). Little is known, however, about the molecular genetic mechanisms that control the formation of the iSPNs versus dSPNs. We show here that the SoxE family member, Sox8, is co-expressed with the dSPN markers, Isl1 and Ebf1, in the developing striatum. Moreover, dSPNs, as marked by Isl1-cre fate map, express Sox8 in the embryonic striatum and Sox8-EGFP BAC transgenic mice specifically reveal the direct pathway axons during development. These EGFP+ axons are first observed to reach their midbrain target, the substantia nigra pars reticulata (SNr), at E14 in the mouse with a robust connection observed already at birth. The selective expression of EGFP in dSPNs of Sox8-EGFP BAC mice is maintained at postnatal timepoints. Sox8 is known to be expressed in oligodendrocyte precursor cells (OPCs) together with other SoxE factors and we show here that the EGFP signal co-localizes with the OPC markers throughout the brain. Finally, we show that Sox8-EGFP BAC mice can be used to interrogate the altered dSPN development in Isl1 conditional mutants including aberrant axonal projections detected already at embryonic timepoints. Thus, Sox8 represents an early and specific marker of embryonic dSPNs and the Sox8-EGFP BAC transgenic mice are an excellent tool to study the development of basal ganglia circuitry.
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Affiliation(s)
- Paloma Merchan-Sala
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Diana Nardini
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Ronald R Waclaw
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Kenneth Campbell
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.,Division of Neurosurgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
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45
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Martín-Ibáñez R, Pardo M, Giralt A, Miguez A, Guardia I, Marion-Poll L, Herranz C, Esgleas M, Garcia-Díaz Barriga G, Edel MJ, Vicario-Abejón C, Alberch J, Girault JA, Chan S, Kastner P, Canals JM. Helios expression coordinates the development of a subset of striatopallidal medium spiny neurons. Development 2017; 144:1566-1577. [PMID: 28289129 PMCID: PMC5399659 DOI: 10.1242/dev.138248] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 03/03/2017] [Indexed: 12/25/2022]
Abstract
Here, we unravel the mechanism of action of the Ikaros family zinc finger protein Helios (He) during the development of striatal medium spiny neurons (MSNs). He regulates the second wave of striatal neurogenesis involved in the generation of striatopallidal neurons, which express dopamine 2 receptor and enkephalin. To exert this effect, He is expressed in neural progenitor cells (NPCs) keeping them in the G1/G0 phase of the cell cycle. Thus, a lack of He results in an increase of S-phase entry and S-phase length of NPCs, which in turn impairs striatal neurogenesis and produces an accumulation of the number of cycling NPCs in the germinal zone (GZ), which end up dying at postnatal stages. Therefore, He−/− mice show a reduction in the number of dorso-medial striatal MSNs in the adult that produces deficits in motor skills acquisition. In addition, overexpression of He in NPCs induces misexpression of DARPP-32 when transplanted in mouse striatum. These findings demonstrate that He is involved in the correct development of a subset of striatopallidal MSNs and reveal new cellular mechanisms for neuronal development. Summary: The transcription factor Helios regulates G1-S transition to promote neuronal differentiation of a striatopallidal neuronal subpopulation involved in motor skill acquisition.
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Affiliation(s)
- Raquel Martín-Ibáñez
- Stem Cells and Regenerative Medicine Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain.,Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain.,Research and Development Unit, Production and Validation Center of Advanced Therapies (Creatio), Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - Mónica Pardo
- Stem Cells and Regenerative Medicine Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain.,Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain
| | - Albert Giralt
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain.,Pathophysiology of Neurodegenerative Diseases Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - Andrés Miguez
- Stem Cells and Regenerative Medicine Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain.,Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain
| | - Inés Guardia
- Stem Cells and Regenerative Medicine Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain.,Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain
| | - Lucile Marion-Poll
- Inserm UMR-S839; Université Pierre et Marie Curie (UPMC, Paris 6), Sorbonne Universités; Institut du Fer à Moulin, 75005 Paris, France
| | - Cristina Herranz
- Stem Cells and Regenerative Medicine Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain.,Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain.,Research and Development Unit, Production and Validation Center of Advanced Therapies (Creatio), Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - Miriam Esgleas
- Stem Cells and Regenerative Medicine Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain
| | - Gerardo Garcia-Díaz Barriga
- Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain.,Pathophysiology of Neurodegenerative Diseases Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - Michael J Edel
- Control of Pluripotency Laboratory, Department of Biomedical Sciences, Faculty of Medicine and Health Science, University of Barcelona, 08036 Barcelona, Spain.,Victor Chang Cardiac Research Institute, Sydney, New South Wales, 2010 Australia.,School of Medicine and Pharmacology, Anatomy, Physiology and Human Biology, CCTRM, University of Western Australia, Western Australia, 6009 Australia
| | - Carlos Vicario-Abejón
- Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain.,Departamento de Neurobiología Molecular, Celular y del Desarrollo, Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), 28002 Madrid, Spain
| | - Jordi Alberch
- Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain
| | - Jean-Antoine Girault
- Inserm UMR-S839; Université Pierre et Marie Curie (UPMC, Paris 6), Sorbonne Universités; Institut du Fer à Moulin, 75005 Paris, France
| | - Susan Chan
- Stem Cells and Regenerative Medicine Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain.,Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain
| | - Philippe Kastner
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Inserm U964, Centre National de la Recherche Scientifique (CNRS) UMR 7104, 67400 Illkirch-Graffenstaden, France.,Faculté de Médecine, Université de Strasbourg, 67081 Strasbourg, France
| | - Josep M Canals
- Stem Cells and Regenerative Medicine Laboratory, Production and Validation Center of Advanced Therapies (Creatio), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain .,Neuroscience Institute, University of Barcelona, 08036 Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain.,Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED), Spain.,Research and Development Unit, Production and Validation Center of Advanced Therapies (Creatio), Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
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46
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Ascl1 promotes tangential migration and confines migratory routes by induction of Ephb2 in the telencephalon. Sci Rep 2017; 7:42895. [PMID: 28276447 PMCID: PMC5343589 DOI: 10.1038/srep42895] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/18/2017] [Indexed: 01/13/2023] Open
Abstract
During development, cortical interneurons generated from the ventral telencephalon migrate tangentially into the dorsal telencephalon. Although Achaete-scute family bHLH transcription factor 1 (Ascl1) plays important roles in the developing telencephalon, whether Ascl1 regulates tangential migration remains unclear. Here, we found that Ascl1 promoted tangential migration along the ventricular zone/subventricular zone (VZ/SVZ) and intermediate zone (IZ) of the dorsal telencephalon. Distal-less homeobox 2 (Dlx2) acted downstream of Ascl1 in promoting tangential migration along the VZ/SVZ but not IZ. We further identified Eph receptor B2 (Ephb2) as a direct target of Ascl1. Knockdown of EphB2 disrupted the separation of the VZ/SVZ and IZ migratory routes. Ephrin-A5, a ligand of EphB2, was sufficient to repel both Ascl1-expressing cells in vitro and tangentially migrating cortical interneurons in vivo. Together, our results demonstrate that Ascl1 induces expression of Dlx2 and Ephb2 to maintain distinct tangential migratory routes in the dorsal telencephalon.
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47
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Waclaw RR, Ehrman LA, Merchan-Sala P, Kohli V, Nardini D, Campbell K. Foxo1 is a downstream effector of Isl1 in direct pathway striatal projection neuron development within the embryonic mouse telencephalon. Mol Cell Neurosci 2017; 80:44-51. [PMID: 28213137 DOI: 10.1016/j.mcn.2017.02.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 12/23/2016] [Accepted: 02/13/2017] [Indexed: 12/20/2022] Open
Abstract
Recent studies have shown that the LIM-homeodomain transcription factor Isl1 is required for the survival and differentiation of direct pathway striatonigral neurons during embryonic development. The downstream effectors of Isl1 in these processes are presently unknown. We show here that Foxo1, a transcription factor that has been implicated in cell survival, is expressed in striatal projection neurons (SPNs) that derive from the Isl1 lineage (i.e. direct pathway SPNs). Moreover, Isl1 conditional knockouts (cKOs) show a severe loss of Foxo1 expression at E15.5 with a modest recovery by E18.5. Although Foxo1 is enriched in the direct pathway SPNs at embryonic stages, it is expressed in both direct and indirect pathway SPNs at postnatal time points as evidenced by co-localization with EGFP in both Drd1-EGFP and Drd2-EGFP BAC transgenic mice. Foxo1 was not detected in striatal interneurons as marked by the transcription factor Nkx2.1. Conditional knockout of Foxo1 using Dlx5/6-CIE mice results in reduced expression of the SPN marker Darpp-32, as well as in the direct pathway SPN markers Ebf1 and Zfp521 within the embryonic striatum at E15.5. However, this phenotype improves in the conditional mutants by E18.5. Interestingly, the Foxo family members, Foxo3 and Foxo6, remain expressed at late embryonic stages in the Foxo1 cKOs unlike the Isl1 cKOs where Foxo1/3/6 as well as the Foxo1/3 target Bach2 are all reduced. Taken together, these findings suggest that Foxo-regulated pathways are downstream of Isl1 in the survival and/or differentiation of direct pathway SPNs.
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Affiliation(s)
- R R Waclaw
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA; Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.
| | - L A Ehrman
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - P Merchan-Sala
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - V Kohli
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - D Nardini
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - K Campbell
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA; Division of Neurosurgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.
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Wu ZQ, Li D, Huang Y, Chen XP, Huang W, Liu CF, Zhao HQ, Xu RX, Cheng M, Schachner M, Ma QH. Caspr Controls the Temporal Specification of Neural Progenitor Cells through Notch Signaling in the Developing Mouse Cerebral Cortex. Cereb Cortex 2017; 27:1369-1385. [PMID: 26740489 DOI: 10.1093/cercor/bhv318] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The generation of layer-specific neurons and astrocytes by radial glial cells during development of the cerebral cortex follows a precise temporal sequence, which is regulated by intrinsic and extrinsic factors. The molecular mechanisms controlling the timely generation of layer-specific neurons and astrocytes remain not fully understood. In this study, we show that the adhesion molecule contactin-associated protein (Caspr), which is involved in the maintenance of the polarized domains of myelinated axons, is essential for the timing of generation of neurons and astrocytes in the developing mouse cerebral cortex. Caspr is expressed by radial glial cells, which are neural progenitor cells that generate both neurons and astrocytes. Absence of Caspr in neural progenitor cells delays the production cortical neurons and induces precocious formation of cortical astrocytes, without affecting the numbers of progenitor cells. At the molecular level, Caspr cooperates with the intracellular domain of Notch to repress transcription of the Notch effector Hes1. Suppression of Notch signaling via a Hes1 shRNA rescues the abnormal neurogenesis and astrogenesis in Caspr-deficient mice. These findings establish Caspr as a novel key regulator that controls the temporal specification of cell fate in radial glial cells of the developing cerebral cortex through Notch signaling.
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Affiliation(s)
- Zhi-Qiang Wu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Institute of Neuroscience, Second Affiliated Hospital, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Di Li
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Institute of Neuroscience, Second Affiliated Hospital, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Ya Huang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Institute of Neuroscience, Second Affiliated Hospital, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Xi-Ping Chen
- Department of Forensic Medicine, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Wenhui Huang
- Department of Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg D-66421, Germany
| | - Chun-Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Institute of Neuroscience, Second Affiliated Hospital, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - He-Qing Zhao
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Institute of Neuroscience, Second Affiliated Hospital, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Ru-Xiang Xu
- Affiliated Bayi Brain Hospital, Beijing Military Hospital, Southern Medical University, Beijing 100070, China
| | - Mei Cheng
- Binzhou Medical University, Yantai, Shandong Province 264000, China
| | - Melitta Schachner
- Center for Neuroscience, Shantou University Medical College, Shantou, Guangdong Province 515041, China
| | - Quan-Hong Ma
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Institute of Neuroscience, Second Affiliated Hospital, Soochow University, Suzhou, Jiangsu Province 215123, China
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Han J, Ji C, Guo Y, Yan R, Hong T, Dou Y, An Y, Tao S, Qin F, Nie J, Ji C, Wang H, Tong J, Xiao W, Zhang J. Mechanisms underlying melatonin-mediated prevention of fenvalerate-induced behavioral and oxidative toxicity in zebrafish. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2017; 80:1331-1341. [PMID: 29144200 DOI: 10.1080/15287394.2017.1384167] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The neurotoxic effects attributed to the pesticide fenvalerate (FEN) are well-established. The aim of this study was to determine whether melatonin (MLT) was able to protect against FEN-induced behavior, oxidative stress, apoptosis, and neurogenesis using zebrafish (Danio rerio) model. Zebrafish exposed to 100 μg/L FEN for 120 h exhibited decreased swimming activity accompanied by downregulated expression of neurogenesis-related genes (Dlx2, Shha, Ngn1, Elavl3, and Gfap), suggesting that neurogenesis were impaired. In addition, FEN exposure significantly elevated oxidative stress as evidenced by increased malondialdehyde levels, as well as activities of Cu/Zn superoxide dismutase (Cu/Zn SOD), catalase, and glutathione peroxidase. Acridine orange staining demonstrated that embryos treated with FEN for 120 h significantly enhanced apoptosis mainly in the brain. FEN also produced upregulation of the expression of the pro-apoptotic genes (Bax, Fas, caspase 8, caspase 9, and caspase 3) and decreased expression of the anti-apoptotic gene Bcl-2. MLT significantly attenuated the FEN-mediated oxidative stress, modulated apoptotic-regulating genes, and diminished apoptotic responses. Further, MLT blocked the FEN-induced effects on swimming behavior as well as on neurogenesis-related genes. In conclusion, MLT protected against FEN-induced developmental neurotoxicity and apoptosis by inhibiting pesticide-mediated oxidative stress in zebrafish.
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Affiliation(s)
- Jingjing Han
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Cheng Ji
- d Center for Circadian Clocks , Soochow University , Suzhou , Jiangsu , China
- e School of Biology and Basic Medical Sciences, Medical College , Soochow University , Suzhou , China
| | - Yichen Guo
- a School of Public Health , Medical College of Soochow University , Suzhou China
- b Department of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Genetic Diseases , Suzhou , China
| | - Rui Yan
- a School of Public Health , Medical College of Soochow University , Suzhou China
- b Department of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Genetic Diseases , Suzhou , China
| | - Ting Hong
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Yuanyan Dou
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Yan An
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Shasha Tao
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Fenju Qin
- c Department of Biological Science and Technology , Suzhou University of Science and Technology , Suzhou China
| | - Jihua Nie
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Chen Ji
- d Center for Circadian Clocks , Soochow University , Suzhou , Jiangsu , China
| | - Han Wang
- d Center for Circadian Clocks , Soochow University , Suzhou , Jiangsu , China
- e School of Biology and Basic Medical Sciences, Medical College , Soochow University , Suzhou , China
| | - Jian Tong
- a School of Public Health , Medical College of Soochow University , Suzhou China
- b Department of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Genetic Diseases , Suzhou , China
| | - Wei Xiao
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Jie Zhang
- a School of Public Health , Medical College of Soochow University , Suzhou China
- b Department of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Genetic Diseases , Suzhou , China
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50
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Oscillatory control of Delta-like1 in cell interactions regulates dynamic gene expression and tissue morphogenesis. Genes Dev 2016; 30:102-16. [PMID: 26728556 PMCID: PMC4701973 DOI: 10.1101/gad.270785.115] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Shimojo et al. developed a live-imaging system and found that Notch ligand Delta-like1 (Dll1) protein expression oscillates in neural progenitors and presomitic mesoderm cells, and this regulates dynamic gene expression and tissue morphogenesis. Notch signaling regulates tissue morphogenesis through cell–cell interactions. The Notch effectors Hes1 and Hes7 are expressed in an oscillatory manner and regulate developmental processes such as neurogenesis and somitogenesis, respectively. Expression of the mRNA for the mouse Notch ligand Delta-like1 (Dll1) is also oscillatory. However, the dynamics of Dll1 protein expression are controversial, and their functional significance is unknown. Here, we developed a live-imaging system and found that Dll1 protein expression oscillated in neural progenitors and presomitic mesoderm cells. Notably, when Dll1 expression was accelerated or delayed by shortening or elongating the Dll1 gene, Dll1 oscillations became severely dampened or quenched at intermediate levels, as modeled mathematically. Under this condition, Hes1 and Hes7 oscillations were also dampened. In the presomitic mesoderm, steady Dll1 expression led to severe fusion of somites and their derivatives, such as vertebrae and ribs. In the developing brain, steady Dll1 expression inhibited proliferation of neural progenitors and accelerated neurogenesis, whereas optogenetic induction of Dll1 oscillation efficiently maintained neural progenitors. These results indicate that the appropriate timing of Dll1 expression is critical for the oscillatory networks and suggest the functional significance of oscillatory cell–cell interactions in tissue morphogenesis.
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