1
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Li XY, Zhang SY, Hong YZ, Chen ZG, Long Y, Yuan DH, Zhao JJ, Tang SS, Wang H, Hong H. TGR5-mediated lateral hypothalamus-dCA3-dorsolateral septum circuit regulates depressive-like behavior in male mice. Neuron 2024; 112:1795-1814.e10. [PMID: 38518778 DOI: 10.1016/j.neuron.2024.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/30/2024] [Accepted: 02/28/2024] [Indexed: 03/24/2024]
Abstract
Although bile acids play a notable role in depression, the pathological significance of the bile acid TGR5 membrane-type receptor in this disorder remains elusive. Using depression models of chronic social defeat stress and chronic restraint stress in male mice, we found that TGR5 in the lateral hypothalamic area (LHA) predominantly decreased in GABAergic neurons, the excitability of which increased in depressive-like mice. Upregulation of TGR5 or inhibition of GABAergic excitability in LHA markedly alleviated depressive-like behavior, whereas down-regulation of TGR5 or enhancement of GABAergic excitability facilitated stress-induced depressive-like behavior. TGR5 also bidirectionally regulated excitability of LHA GABAergic neurons via extracellular regulated protein kinases-dependent Kv4.2 channels. Notably, LHA GABAergic neurons specifically innervated dorsal CA3 (dCA3) CaMKIIα neurons for mediation of depressive-like behavior. LHA GABAergic TGR5 exerted antidepressant-like effects by disinhibiting dCA3 CaMKIIα neurons projecting to the dorsolateral septum (DLS). These findings advance our understanding of TGR5 and the LHAGABA→dCA3CaMKIIα→DLSGABA circuit for the development of potential therapeutic strategies in depression.
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Affiliation(s)
- Xu-Yi Li
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Shi-Ya Zhang
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yi-Zhou Hong
- Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Zhi-Gang Chen
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yan Long
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Dan-Hua Yuan
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jia-Jia Zhao
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Su-Su Tang
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Hao Wang
- Affiliated Mental Health Center and Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine/Nanhu Brain-Computer Interface Institute, Hangzhou 310013, China.
| | - Hao Hong
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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2
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Mannens CCA, Hu L, Lönnerberg P, Schipper M, Reagor CC, Li X, He X, Barker RA, Sundström E, Posthuma D, Linnarsson S. Chromatin accessibility during human first-trimester neurodevelopment. Nature 2024:10.1038/s41586-024-07234-1. [PMID: 38693260 DOI: 10.1038/s41586-024-07234-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 02/02/2024] [Indexed: 05/03/2024]
Abstract
The human brain develops through a tightly organized cascade of patterning events, induced by transcription factor expression and changes in chromatin accessibility. Although gene expression across the developing brain has been described at single-cell resolution1, similar atlases of chromatin accessibility have been primarily focused on the forebrain2-4. Here we describe chromatin accessibility and paired gene expression across the entire developing human brain during the first trimester (6-13 weeks after conception). We defined 135 clusters and used multiomic measurements to link candidate cis-regulatory elements to gene expression. The number of accessible regions increased both with age and along neuronal differentiation. Using a convolutional neural network, we identified putative functional transcription factor-binding sites in enhancers characterizing neuronal subtypes. We applied this model to cis-regulatory elements linked to ESRRB to elucidate its activation mechanism in the Purkinje cell lineage. Finally, by linking disease-associated single nucleotide polymorphisms to cis-regulatory elements, we validated putative pathogenic mechanisms in several diseases and identified midbrain-derived GABAergic neurons as being the most vulnerable to major depressive disorder-related mutations. Our findings provide a more detailed view of key gene regulatory mechanisms underlying the emergence of brain cell types during the first trimester and a comprehensive reference for future studies related to human neurodevelopment.
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Affiliation(s)
- Camiel C A Mannens
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Solna, Sweden
| | - Lijuan Hu
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Solna, Sweden
| | - Peter Lönnerberg
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Solna, Sweden
| | - Marijn Schipper
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research (CNCR), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Caleb C Reagor
- Howard Hughes Medical Institute and Laboratory of Sensory Neuroscience, The Rockefeller University, New York, NY, USA
| | - Xiaofei Li
- Division of Neurodegeneration, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Solna, Sweden
| | - Xiaoling He
- John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Roger A Barker
- John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Erik Sundström
- Division of Neurodegeneration, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Solna, Sweden
| | - Danielle Posthuma
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research (CNCR), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Sten Linnarsson
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Solna, Sweden.
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3
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Sun W, Wang M, Zhao J, Zhao S, Zhu W, Wu X, Li F, Liu W, Wang Z, Gao M, Zhang Y, Xu J, Zhang M, Wang Q, Wen Z, Shen J, Zhang W, Huang Z. Sulindac selectively induces autophagic apoptosis of GABAergic neurons and alters motor behaviour in zebrafish. Nat Commun 2023; 14:5351. [PMID: 37660128 PMCID: PMC10475106 DOI: 10.1038/s41467-023-41114-y] [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: 10/16/2022] [Accepted: 08/22/2023] [Indexed: 09/04/2023] Open
Abstract
Nonsteroidal anti-inflammatory drugs compose one of the most widely used classes of medications, but the risks for early development remain controversial, especially in the nervous system. Here, we utilized zebrafish larvae to assess the potentially toxic effects of nonsteroidal anti-inflammatory drugs and found that sulindac can selectively induce apoptosis of GABAergic neurons in the brains of zebrafish larvae brains. Zebrafish larvae exhibit hyperactive behaviour after sulindac exposure. We also found that akt1 is selectively expressed in GABAergic neurons and that SC97 (an Akt1 activator) and exogenous akt1 mRNA can reverse the apoptosis caused by sulindac. Further studies showed that sulindac binds to retinoid X receptor alpha (RXRα) and induces autophagy in GABAergic neurons, leading to activation of the mitochondrial apoptotic pathway. Finally, we verified that sulindac can lead to hyperactivity and selectively induce GABAergic neuron apoptosis in mice. These findings suggest that excessive use of sulindac may lead to early neurodevelopmental toxicity and increase the risk of hyperactivity, which could be associated with damage to GABAergic neurons.
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Affiliation(s)
- Wenwei Sun
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Meimei Wang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Jun Zhao
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Shuang Zhao
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Wenchao Zhu
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Xiaoting Wu
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Feifei Li
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Wei Liu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Zhuo Wang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Meng Gao
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Yiyue Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Jin Xu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Meijia Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Qiang Wang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Zilong Wen
- Division of Life Science, State Key Laboratory of Molecular Neuroscience and Center of Systems Biology and Human Health, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, Shenzhen, 518055, China
| | - Juan Shen
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Wenqing Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China.
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen, 518055, China.
| | - Zhibin Huang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China.
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4
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Chohan MO, Kopelman JM, Yueh H, Fazlali Z, Greene N, Harris AZ, Balsam PD, Leonardo ED, Kramer ER, Veenstra-VanderWeele J, Ahmari SE. Developmental impact of glutamate transporter overexpression on dopaminergic neuron activity and stereotypic behavior. Mol Psychiatry 2022; 27:1515-1526. [PMID: 35058566 PMCID: PMC9106836 DOI: 10.1038/s41380-021-01424-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 10/30/2021] [Accepted: 12/16/2021] [Indexed: 11/09/2022]
Abstract
Obsessive-compulsive disorder (OCD) is a disabling condition that often begins in childhood. Genetic studies in OCD have pointed to SLC1A1, which encodes the neuronal glutamate transporter EAAT3, with evidence suggesting that increased expression contributes to risk. In mice, midbrain Slc1a1 expression supports repetitive behavior in response to dopaminergic agonists, aligning with neuroimaging and pharmacologic challenge studies that have implicated the dopaminergic system in OCD. These findings suggest that Slc1a1 may contribute to compulsive behavior through altered dopaminergic transmission; however, this theory has not been mechanistically tested. To examine the developmental impact of Slc1a1 overexpression on compulsive-like behaviors, we, therefore, generated a novel mouse model to perform targeted, reversible overexpression of Slc1a1 in dopaminergic neurons. Mice with life-long overexpression of Slc1a1 showed a significant increase in amphetamine (AMPH)-induced stereotypy and hyperlocomotion. Single-unit recordings demonstrated that Slc1a1 overexpression was associated with increased firing of dopaminergic neurons. Furthermore, dLight1.1 fiber photometry showed that these behavioral abnormalities were associated with increased dorsal striatum dopamine release. In contrast, no impact of overexpression was observed on anxiety-like behaviors or SKF-38393-induced grooming. Importantly, overexpression solely in adulthood failed to recapitulate these behavioral phenotypes, suggesting that overexpression during development is necessary to generate AMPH-induced phenotypes. However, doxycycline-induced reversal of Slc1a1/EAAT3 overexpression in adulthood normalized both the increased dopaminergic firing and AMPH-induced responses. These data indicate that the pathologic effects of Slc1a1/EAAT3 overexpression on dopaminergic neurotransmission and AMPH-induced stereotyped behavior are developmentally mediated, and support normalization of EAAT3 activity as a potential treatment target for basal ganglia-mediated repetitive behaviors.
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Affiliation(s)
- Muhammad O. Chohan
- Department of Psychiatry, Columbia University, New York, NY, USA,New York State Psychiatric Institute, New York, NY, USA
| | - Jared M. Kopelman
- Department of Psychiatry, Translational Neuroscience Program, University of Pittsburgh, Pittsburgh, PA, USA,Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Hannah Yueh
- Department of Psychiatry, Columbia University, New York, NY, USA,New York State Psychiatric Institute, New York, NY, USA
| | - Zeinab Fazlali
- Department of Psychiatry, Columbia University, New York, NY, USA,New York State Psychiatric Institute, New York, NY, USA
| | - Natasha Greene
- New York State Psychiatric Institute, New York, NY, USA,Department of Psychology, Barnard College of Columbia University, New York, NY, USA
| | - Alexander Z. Harris
- Department of Psychiatry, Columbia University, New York, NY, USA,New York State Psychiatric Institute, New York, NY, USA
| | - Peter D. Balsam
- Department of Psychiatry, Columbia University, New York, NY, USA,New York State Psychiatric Institute, New York, NY, USA,Department of Psychology, Barnard College of Columbia University, New York, NY, USA
| | - E. David Leonardo
- Department of Psychiatry, Columbia University, New York, NY, USA,New York State Psychiatric Institute, New York, NY, USA
| | - Edgar R. Kramer
- Peninsula Medical School, Faculty of Health, University of Plymouth, Plymouth, Devon, UK
| | - Jeremy Veenstra-VanderWeele
- Department of Psychiatry, Columbia University, New York, NY, USA. .,New York State Psychiatric Institute, New York, NY, USA.
| | - Susanne E. Ahmari
- Department of Psychiatry, Translational Neuroscience Program, University of Pittsburgh, Pittsburgh, PA, USA,Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA, USA
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5
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Excitatory cholecystokinin neurons of the midbrain integrate diverse temporal responses and drive auditory thalamic subdomains. Proc Natl Acad Sci U S A 2021; 118:2007724118. [PMID: 33658359 PMCID: PMC7958253 DOI: 10.1073/pnas.2007724118] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Our ability to identify sounds and understand communication signals depends upon our brains’ capacity to combine information about diverse sound features, including temporal patterns. The central nucleus of the inferior colliculus (ICC) performs an initial stage of this integration, but a circuit-based understanding of these processes has been hampered by difficulties in separating clearly defined functional cell types. Here we identify and characterize a major excitatory projection neuron of the ICC. These neurons show uniform intrinsic firing patterns and tuning to frequency, but strikingly diverse temporal responses to sound. Our results suggest that diversity in temporal coding is represented even within a single cell class and is likely primarily driven by differences in circuit connectivity. The central nucleus of the inferior colliculus (ICC) integrates information about different features of sound and then distributes this information to thalamocortical circuits. However, the lack of clear definitions of circuit elements in the ICC has limited our understanding of the nature of these circuit transformations. Here, we combine virus-based genetic access with electrophysiological and optogenetic approaches to identify a large family of excitatory, cholecystokinin-expressing thalamic projection neurons in the ICC of the Mongolian gerbil. We show that these neurons form a distinct cell type, displaying uniform morphology and intrinsic firing features, and provide powerful, spatially restricted excitation exclusively to the ventral auditory thalamus. In vivo, these neurons consistently exhibit V-shaped receptive field properties but strikingly diverse temporal responses to sound. Our results indicate that temporal response diversity is maintained within this population of otherwise uniform cells in the ICC and then relayed to cortex through spatially restricted thalamic subdomains.
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6
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Beccacece L, Abondio P, Cilli E, Restani D, Luiselli D. Human Genomics and the Biocultural Origin of Music. Int J Mol Sci 2021; 22:5397. [PMID: 34065521 PMCID: PMC8160972 DOI: 10.3390/ijms22105397] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/03/2021] [Accepted: 05/18/2021] [Indexed: 12/11/2022] Open
Abstract
Music is an exclusive feature of humankind. It can be considered as a form of universal communication, only partly comparable to the vocalizations of songbirds. Many trends of research in this field try to address music origins, as well as the genetic bases of musicality. On one hand, several hypotheses have been made on the evolution of music and its role, but there is still debate, and comparative studies suggest a gradual evolution of some abilities underlying musicality in primates. On the other hand, genome-wide studies highlight several genes associated with musical aptitude, confirming a genetic basis for different musical skills which humans show. Moreover, some genes associated with musicality are involved also in singing and song learning in songbirds, suggesting a likely evolutionary convergence between humans and songbirds. This comprehensive review aims at presenting the concept of music as a sociocultural manifestation within the current debate about its biocultural origin and evolutionary function, in the context of the most recent discoveries related to the cross-species genetics of musical production and perception.
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Affiliation(s)
- Livia Beccacece
- Laboratory of Molecular Anthropology, Department of Biological, Geological and Environmental Sciences, University of Bologna, 40126 Bologna, Italy;
| | - Paolo Abondio
- Laboratory of Molecular Anthropology, Department of Biological, Geological and Environmental Sciences, University of Bologna, 40126 Bologna, Italy;
| | - Elisabetta Cilli
- Department of Cultural Heritage, University of Bologna—Ravenna Campus, 48121 Ravenna, Italy; (E.C.); (D.R.)
| | - Donatella Restani
- Department of Cultural Heritage, University of Bologna—Ravenna Campus, 48121 Ravenna, Italy; (E.C.); (D.R.)
| | - Donata Luiselli
- Department of Cultural Heritage, University of Bologna—Ravenna Campus, 48121 Ravenna, Italy; (E.C.); (D.R.)
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7
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Functional Access to Neuron Subclasses in Rodent and Primate Forebrain. Cell Rep 2020; 26:2818-2832.e8. [PMID: 30840900 PMCID: PMC6509701 DOI: 10.1016/j.celrep.2019.02.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 01/08/2019] [Accepted: 02/04/2019] [Indexed: 12/21/2022] Open
Abstract
Viral vectors enable foreign proteins to be expressed in brains of non-genetic species, including non-human primates. However, viruses targeting specific neuron classes have proved elusive. Here we describe viral promoters and strategies for accessing GABAergic interneurons and their molecularly defined subsets in the rodent and primate. Using a set intersection approach, which relies on two co-active promoters, we can restrict heterologous protein expression to cortical and hippocampal somatostatin-positive and parvalbumin-positive interneurons. With an orthogonal set difference method, we can enrich for subclasses of neuropeptide-Y-positive GABAergic interneurons by effectively subtracting the expression pattern of one promoter from that of another. These methods harness the complexity of gene expression patterns in the brain and significantly expand the number of genetically tractable neuron classes across mammals.
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8
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Paul EJ, Tossell K, Ungless MA. Transcriptional profiling aligned with in situ expression image analysis reveals mosaically expressed molecular markers for GABA neuron sub-groups in the ventral tegmental area. Eur J Neurosci 2019; 50:3732-3749. [PMID: 31374129 PMCID: PMC6972656 DOI: 10.1111/ejn.14534] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/12/2019] [Accepted: 07/19/2019] [Indexed: 12/17/2022]
Abstract
γ‐Aminobutyric acid (GABA) neurons in the ventral tegmental area (VTA) provide local inhibitory control of dopamine neuron activity and send long‐range projections to several target regions including the nucleus accumbens. They play diverse roles in reward and aversion, suggesting that they be comprised of several functionally distinct sub‐groups, but our understanding of this diversity has been limited by a lack of molecular markers that might provide genetic entry points for cell type‐specific investigations. To address this, we conducted transcriptional profiling of GABA neurons and dopamine neurons using immunoprecipitation of tagged polyribosomes (RiboTag) and RNAseq. First, we directly compared these two transcriptomes in order to obtain a list of genes enriched in GABA neurons compared with dopamine neurons. Next, we created a novel bioinformatic approach, that used the PANTHER (Protein ANalysis THrough Evolutionary Relationships) gene ontology database and VTA gene expression data from the Allen Mouse Brain Atlas, from which we obtained 6 candidate genes: Cbln4, Rxfp3, Rora, Gpr101, Trh and Nrp2. As a final step, we verified the selective expression of these candidate genes in sub‐groups of GABA neurons in the VTA (and neighbouring substantia nigra pars compacta) using immunolabelling. Taken together, our study provides a valuable toolbox for the future investigation of GABA neuron sub‐groups in the VTA.
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Affiliation(s)
- Eleanor J Paul
- MRC London Institute of Medical Sciences (LMS), London, UK.,Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, London, UK
| | - Kyoko Tossell
- MRC London Institute of Medical Sciences (LMS), London, UK.,Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, London, UK
| | - Mark A Ungless
- MRC London Institute of Medical Sciences (LMS), London, UK.,Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, London, UK
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9
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Raina A, Mahajani S, Bähr M, Kügler S. Neuronal Trans-differentiation by Transcription Factors Ascl1 and Nurr1: Induction of a Dopaminergic Neurotransmitter Phenotype in Cortical GABAergic Neurons. Mol Neurobiol 2019; 57:249-260. [PMID: 31317490 DOI: 10.1007/s12035-019-01701-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 07/09/2019] [Indexed: 12/17/2022]
Abstract
Neurons with a desired neurotransmitter phenotype can be differentiated from induced pluripotent stem cells or from somatic cells only through tedious protocols with relatively low yield. Readily available cortical neurons isolated from embryonic rat brain, which have already undergone a complete neuronal differentiation process, might serve as alternative template source. These cultures consist of 85% glutamatergic and 15% GABAergic neurons, and we attempted to trans-differentiate them into dopaminergic neurons. Transcription factors Nurr1, Lmx1A and Pitx3, essential determinants of a dopaminergic cell fate during CNS development, were not sufficient to induce tyrosine hydroxylase expression in a significant number of cells. Combining Nurr1 with the generic neuronal differentiator and re-programming factor Ascl1, however, resulted in generation of neurons which express dopaminergic markers TH, AADC, VMAT2 and DAT. Only neurons of GABAergic phenotype could be trans-differentiated towards a dopaminergic neurotransmitter phenotype, while for glutamatergic neurons, this process proved to be neurotoxic. Intriguingly, GABAergic neurons isolated from embryonal midbrain could not be trans-differentiated into dopaminergic neurons by Ascl1 and Nurr1. Thus, in principle, post-mitotic embryonal neurons can serve as templates for neurons with a desired neurotransmitter phenotype. However, neurotransmitter phenotype plasticity critically depends on the differentiation history of the template neurons, which can result in relatively low yields of dopaminergic neurons.
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Affiliation(s)
- Anupam Raina
- Department of Neurology, University Medicine Göttingen, Waldweg 33, 37073, Göttingen, Germany.,Center Nanoscale Microscopy and Physiology of the Brain (CNMPB), Göttingen, Germany
| | - Sameehan Mahajani
- Department of Neurology, University Medicine Göttingen, Waldweg 33, 37073, Göttingen, Germany.,Center Nanoscale Microscopy and Physiology of the Brain (CNMPB), Göttingen, Germany
| | - Mathias Bähr
- Department of Neurology, University Medicine Göttingen, Waldweg 33, 37073, Göttingen, Germany.,Center Nanoscale Microscopy and Physiology of the Brain (CNMPB), Göttingen, Germany
| | - Sebastian Kügler
- Department of Neurology, University Medicine Göttingen, Waldweg 33, 37073, Göttingen, Germany. .,Center Nanoscale Microscopy and Physiology of the Brain (CNMPB), Göttingen, Germany.
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10
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García-Peña CM, Ávila-González D, Miquelajáuregui A, Lozano-Flores C, Mastick GS, Tamariz E, Varela-Echavarría A. Neurophilic Descending Migration of Dorsal Midbrain Neurons Into the Hindbrain. Front Neuroanat 2018; 12:96. [PMID: 30483071 PMCID: PMC6243072 DOI: 10.3389/fnana.2018.00096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 10/22/2018] [Indexed: 12/29/2022] Open
Abstract
Stereotypic cell migrations in the developing brain are fundamental for the proper patterning of brain regions and formation of neural networks. In this work, we uncovered in the developing rat, a population of neurons expressing tyrosine hydroxylase (TH) that migrates posteriorly from the alar plate of the midbrain, in neurophilic interaction with axons of the mesencephalic nucleus of the trigeminal nerve. A fraction of this population was also shown to traverse the mid-hindbrain boundary, reaching the vicinity of the locus coeruleus (LC) in rhombomere 1 (r1). This migratory population, however, does not have a noradrenergic (NA) phenotype and, in keeping with its midbrain origin, expresses Otx2 which is down regulated upon migration into the hindbrain. The interaction with the trigeminal mesencephalic axons is necessary for the arrangement and distribution of migratory cells as these aspects are dramatically altered in whole embryo cultures upon disruption of trigeminal axon projection by interfering with DCC function. Moreover, in mouse embryos in an equivalent developmental stage, we detected a cell population that also migrates caudally within the midbrain apposed to mesencephalic trigeminal axons but that does not express TH; a fraction of this population expresses calbindin instead. Overall, our work identified TH-expressing neurons from the rat midbrain alar plate that migrate tangentially over long distances within the midbrain and into the hindbrain by means of a close interaction with trigeminal mesencephalic axons. A different migratory population in this region and also in mouse embryos revealed diversity among the cells that follow this descending migratory pathway.
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Affiliation(s)
- Claudia M García-Peña
- Department of Developmental Neurobiology and Neurophysiology, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Querétaro, México
| | - Daniela Ávila-González
- Department of Developmental Neurobiology and Neurophysiology, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Querétaro, México
| | - Amaya Miquelajáuregui
- Department of Developmental Neurobiology and Neurophysiology, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Querétaro, México
| | - Carlos Lozano-Flores
- Department of Developmental Neurobiology and Neurophysiology, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Querétaro, México
| | - Grant S Mastick
- Department of Biology, University of Nevada, Reno, Reno, NV, United States
| | - Elisa Tamariz
- Department of Developmental Neurobiology and Neurophysiology, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Querétaro, México
| | - Alfredo Varela-Echavarría
- Department of Developmental Neurobiology and Neurophysiology, Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Querétaro, México
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11
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Kim JY, Lee JS, Hwang HS, Lee DR, Park CY, Jung SJ, You YR, Kim DS, Kim DW. Wnt signal activation induces midbrain specification through direct binding of the beta-catenin/TCF4 complex to the EN1 promoter in human pluripotent stem cells. Exp Mol Med 2018; 50:1-13. [PMID: 29650976 PMCID: PMC5938028 DOI: 10.1038/s12276-018-0044-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 11/30/2017] [Accepted: 12/19/2017] [Indexed: 12/12/2022] Open
Abstract
The canonical Wnt signal pathway plays a pivotal role in anteroposterior patterning and midbrain specification during early neurogenesis. Activating Wnt signal has been a strategy for differentiating human pluripotent stem cells (PSCs) into midbrain dopaminergic (DA) neurons; however, the underlying molecular mechanism(s) of how the Wnt signal drives posterior fate remained unclear. In this study, we found that activating the canonical Wnt signal significantly upregulated the expression of EN1, a midbrain-specific marker, in a fibroblast growth factor signal-dependent manner in human PSC-derived neural precursor cells (NPCs). The EN1 promoter region contains a putative TCF4-binding site that directly interacts with the β-catenin/TCF complex upon Wnt signal activation. Once differentiated, NPCs treated with a Wnt signal agonist gave rise to functional midbrain neurons including glutamatergic, GABAergic, and DA neurons. Our results provide a potential molecular mechanism that underlies midbrain specification of human PSC-derived NPCs by Wnt activation, as well as a differentiation paradigm for generating human midbrain neurons that may serve as a cellular platform for studying the ontogenesis of midbrain neurons and neurological diseases relevant to the midbrain.
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Affiliation(s)
- Ji Young Kim
- Department of Physiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Korea.,Brain Korea 21 PLUS Program for Medical Science, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Jae Souk Lee
- Department of Physiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Korea.,Brain Korea 21 PLUS Program for Medical Science, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Hyun Sub Hwang
- Department of Physiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Korea
| | - Dongjin R Lee
- Department of Physiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Korea
| | - Chul-Yong Park
- Department of Physiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Korea
| | - Sung Jun Jung
- Department of Physiology, College of Medicine, Hanyang University, 222 Wangsimni-ro, Seoul, 04763, Korea
| | - Young Rang You
- Department of Biotechnology, Brain Korea 21 PLUS program for Biotechnology, College of Life Science & Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Korea
| | - Dae-Sung Kim
- Department of Biotechnology, Brain Korea 21 PLUS program for Biotechnology, College of Life Science & Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Korea.
| | - Dong-Wook Kim
- Department of Physiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Korea. .,Brain Korea 21 PLUS Program for Medical Science, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea.
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12
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Järvelä I. Genomics studies on musical aptitude, music perception, and practice. Ann N Y Acad Sci 2018; 1423:82-91. [PMID: 29570792 DOI: 10.1111/nyas.13620] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/11/2017] [Accepted: 12/22/2017] [Indexed: 12/14/2022]
Abstract
When searching for genetic markers inherited together with musical aptitude, genes affecting inner ear development and brain function were identified. The alpha-synuclein gene (SNCA), located in the most significant linkage region of musical aptitude, was overexpressed when listening and performing music. The GATA-binding protein 2 gene (GATA2) was located in the best associated region of musical aptitude and regulates SNCA in dopaminergic neurons, thus linking DNA- and RNA-based studies of music-related traits together. In addition to SNCA, several other genes were linked to dopamine metabolism. Mutations in SNCA predispose to Lewy-body dementia and cause Parkinson disease in humans and affect song production in songbirds. Several other birdsong genes were found in transcriptome analysis, suggesting a common evolutionary background of sound perception and production in humans and songbirds. Regions of positive selection with musical aptitude contained genes affecting auditory perception, cognitive performance, memory, human language development, and song perception and production of songbirds. The data support the role of dopaminergic pathway and their link to the reward mechanism as a molecular determinant in positive selection of music. Integration of gene-level data from the literature across multiple species prioritized activity-dependent immediate early genes as candidate genes in musical aptitude and listening to and performing music.
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Affiliation(s)
- Irma Järvelä
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
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13
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Madrigal MP, Moreno-Bravo JA, Martínez-López JE, Martínez S, Puelles E. Mesencephalic origin of the rostral Substantia nigra pars reticulata. Brain Struct Funct 2016; 221:1403-12. [PMID: 25579066 PMCID: PMC4819793 DOI: 10.1007/s00429-014-0980-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 12/24/2014] [Indexed: 12/03/2022]
Abstract
In embryonic development, the neurons that will constitute a heterogeneous nucleus may have distinct origins. The different components of these populations reach their final location by radial and tangential migrations. The Substantia nigra pars reticulata (SNR) presents a high level of neuronal heterogeneity. It is composed by GABAergic neurons located in the mes-diencephalic basal plate. These inhibitory neurons usually display tangential migrations and it has been already described that the caudal SNR is colonized tangentially from rhombomere 1. Our aim is to unveil the origin of the rostral SNR. We have localized a Nkx6.2 positive ventricular domain located in the alar midbrain. Nkx6.2 derivatives' fate map analysis showed mainly a rostral colonization of this GABAergic neuronal population. We confirmed the mesencephalic origin by the expression of Six3. Both transcription factors are sequentially expressed along the differentiation of these neurons. We demonstrated the origin of the rostral SNR; our data allowed us to postulate that this nucleus is composed by two neuronal populations distributed in opposite gradients with different origins, one from rhombomere 1, caudal to rostral, and the other from the midbrain, rostral to caudal. We can conclude that the SNR has multiple origins and follows complex mechanisms of specification and migration. Our results support vital information for the study of genetic modifications in these extremely complex processes that result in devastating behavioral alterations and predisposition to psychiatric diseases. Understanding the development, molecular identity and functional characteristics of these diverse neuronal populations might lead to better diagnosis and treatment of several forms of neurological and psychiatric disease.
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Affiliation(s)
- M Pilar Madrigal
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, 03550, Sant Joan d'Alacant, Alicante, Spain
| | - Juan A Moreno-Bravo
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, 03550, Sant Joan d'Alacant, Alicante, Spain
| | - Jesús E Martínez-López
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, 03550, Sant Joan d'Alacant, Alicante, Spain
| | - Salvador Martínez
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, 03550, Sant Joan d'Alacant, Alicante, Spain
- Instituto Murciano de Investigación Biomédica IMIB-Arrixaca, E30120, Murcia, Spain
| | - Eduardo Puelles
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández-CSIC, 03550, Sant Joan d'Alacant, Alicante, Spain.
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14
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Morello F, Partanen J. Diversity and development of local inhibitory and excitatory neurons associated with dopaminergic nuclei. FEBS Lett 2015; 589:3693-701. [PMID: 26453835 DOI: 10.1016/j.febslet.2015.10.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 09/28/2015] [Accepted: 10/01/2015] [Indexed: 12/18/2022]
Abstract
For regulation of voluntary movement and motivation the midbrain dopaminergic system receives input from a variety of brain regions. Often this input is mediated by local non-dopaminergic neurons within or closely associated with the dopaminergic nuclei. In addition to the dopaminergic neurons, some of these non-dopaminergic neurons also send functionally important output from the ventral midbrain to forebrain targets. The aim of this review is to introduce subtypes of GABAergic and glutamatergic neurons, which are located in the dopaminergic nuclei or the adjacent brainstem and are important for the regulation of the dopaminergic pathways. In addition, we discuss recent studies beginning to reveal mechanisms for their development, which may hold the key to understanding the diversity of these neurons.
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Affiliation(s)
- Francesca Morello
- Department of Biosciences, Division of Genetics, P.O. Box 56, Viikinkaari 9, 00014 University of Helsinki, Helsinki, Finland
| | - Juha Partanen
- Department of Biosciences, Division of Genetics, P.O. Box 56, Viikinkaari 9, 00014 University of Helsinki, Helsinki, Finland.
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15
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Oikkonen J, Huang Y, Onkamo P, Ukkola-Vuoti L, Raijas P, Karma K, Vieland VJ, Järvelä I. A genome-wide linkage and association study of musical aptitude identifies loci containing genes related to inner ear development and neurocognitive functions. Mol Psychiatry 2015; 20:275-82. [PMID: 24614497 PMCID: PMC4259854 DOI: 10.1038/mp.2014.8] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 12/17/2013] [Accepted: 01/06/2014] [Indexed: 01/06/2023]
Abstract
Humans have developed the perception, production and processing of sounds into the art of music. A genetic contribution to these skills of musical aptitude has long been suggested. We performed a genome-wide scan in 76 pedigrees (767 individuals) characterized for the ability to discriminate pitch (SP), duration (ST) and sound patterns (KMT), which are primary capacities for music perception. Using the Bayesian linkage and association approach implemented in program package KELVIN, especially designed for complex pedigrees, several single nucleotide polymorphisms (SNPs) near genes affecting the functions of the auditory pathway and neurocognitive processes were identified. The strongest association was found at 3q21.3 (rs9854612) with combined SP, ST and KMT test scores (COMB). This region is located a few dozen kilobases upstream of the GATA binding protein 2 (GATA2) gene. GATA2 regulates the development of cochlear hair cells and the inferior colliculus (IC), which are important in tonotopic mapping. The highest probability of linkage was obtained for phenotype SP at 4p14, located next to the region harboring the protocadherin 7 gene, PCDH7. Two SNPs rs13146789 and rs13109270 of PCDH7 showed strong association. PCDH7 has been suggested to play a role in cochlear and amygdaloid complexes. Functional class analysis showed that inner ear and schizophrenia-related genes were enriched inside the linked regions. This study is the first to show the importance of auditory pathway genes in musical aptitude.
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Affiliation(s)
- J. Oikkonen
- Department of Medical Genetics, University of Helsinki, P.O. Box 63, 00014 University of Helsinki, Finland
- Department of Biological and Environmental Sciences, University of Helsinki, P.O. Box 56, 00014 University of Helsinki
| | - Y. Huang
- The Research Institute at Nationwide Children's Hospital & The Ohio State University, Columbus OH 43215, USA
| | - P. Onkamo
- Department of Biological and Environmental Sciences, University of Helsinki, P.O. Box 56, 00014 University of Helsinki
| | - L. Ukkola-Vuoti
- Department of Medical Genetics, University of Helsinki, P.O. Box 63, 00014 University of Helsinki, Finland
| | - P. Raijas
- DocMus Department, University of the Arts Helsinki, P.O. Box 86, 00251 Helsinki, Finland
| | - K. Karma
- DocMus Department, University of the Arts Helsinki, P.O. Box 86, 00251 Helsinki, Finland
| | - V. J. Vieland
- The Research Institute at Nationwide Children's Hospital & The Ohio State University, Columbus OH 43215, USA
| | - I. Järvelä
- Department of Medical Genetics, University of Helsinki, P.O. Box 63, 00014 University of Helsinki, Finland
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16
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Lahti L, Haugas M, Tikker L, Airavaara M, Voutilainen MH, Anttila J, Kumar S, Inkinen C, Salminen M, Partanen J. Differentiation and molecular heterogeneity of inhibitory and excitatory neurons associated with midbrain dopaminergic nuclei. Development 2015; 143:516-29. [DOI: 10.1242/dev.129957] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 12/18/2015] [Indexed: 12/24/2022]
Abstract
Local inhibitory GABAergic and excitatory glutamatergic neurons are important for midbrain dopaminergic and hindbrain serotonergic pathways controlling motivation, mood, and voluntary movements. Such neurons reside both within the dopaminergic nuclei, and in adjacent brain structures, including the rostromedial and laterodorsal tegmental nuclei. Compared to the monoaminergic neurons, the development, heterogeneity, and molecular characteristics of these regulatory neurons are poorly understood. We show here that different GABAergic and glutamatergic subgroups associated with the monoaminergic nuclei express specific transcription factors. These neurons share common origins in the ventrolateral rhombomere 1, where postmitotic selector genes Tal1, Gata2, and Gata3 control the balance between the generation of inhibitory and excitatory neurons. In the absence of Tal1, or both Gata2 and Gata3, the GABAergic precursors adopt glutamatergic fates and populate the glutamatergic nuclei in excessive numbers. Together, our results uncover developmental regulatory mechanisms, molecular characteristics, and heterogeneity of central regulators of monoaminergic circuits.
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Affiliation(s)
- Laura Lahti
- Department of Biosciences, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Maarja Haugas
- Department of Biosciences, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Laura Tikker
- Department of Biosciences, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Mikko Airavaara
- Institute of Biotechnology, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Merja H. Voutilainen
- Institute of Biotechnology, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Jenni Anttila
- Institute of Biotechnology, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Suman Kumar
- Department of Biosciences, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Caisa Inkinen
- Department of Biosciences, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Marjo Salminen
- Department of Veterinary Biosciences, Agnes Sjöbergin katu 2, FIN-00014 University of Helsinki, Helsinki, Finland
| | - Juha Partanen
- Department of Biosciences, P.O. Box 56, Viikinkaari 9, FIN-00014 University of Helsinki, Helsinki, Finland
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17
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Affiliation(s)
- Jaana Oikkonen
- Department of Medical Genetics; University of Helsinki; Helsinki Finland
| | - Irma Järvelä
- Department of Medical Genetics; University of Helsinki; Helsinki Finland
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18
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Escobedo-Avila I, Vargas-Romero F, Molina-Hernández A, López-González R, Cortés D, De Carlos JA, Velasco I. Histamine impairs midbrain dopaminergic development in vivo by activating histamine type 1 receptors. Mol Brain 2014; 7:58. [PMID: 25112718 PMCID: PMC4237960 DOI: 10.1186/s13041-014-0058-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 07/30/2014] [Indexed: 12/02/2022] Open
Abstract
Background Histamine (HA) regulates the sleep-wake cycle, synaptic plasticity and memory in adult mammals. Dopaminergic specification in the embryonic ventral midbrain (VM) coincides with increased HA brain levels. To study the effect of HA receptor stimulation on dopamine neuron generation, we administered HA to dopamine progenitors, both in vitro and in vivo. Results Cultured embryonic day 12 (E12) VM neural stem/progenitor cells expressed transcripts for HA receptors H1R, H2R and H3R. These undifferentiated progenitors increased intracellular calcium upon HA addition. In HA-treated cultures, dopamine neurons significantly decreased after activation of H1R. We performed intrauterine injections in the developing VM to investigate HA effects in vivo. HA administration to E12 rat embryos notably reduced VM Tyrosine Hydroxylase (TH) staining 2 days later, without affecting GABA neurons in the midbrain, or serotonin neurons in the mid-hindbrain boundary. qRT-PCR and Western blot analyses confirmed that several markers important for the generation and maintenance of dopaminergic lineage such as TH, Lmx1a and Lmx1b were significantly diminished. To identify the cell type susceptible to HA action, we injected embryos of different developmental stages, and found that neural progenitors (E10 and E12) were responsive, whereas differentiated dopaminergic neurons (E14 and E16) were not susceptible to HA actions. Proliferation was significantly diminished, whereas neuronal death was not increased in the VM after HA administration. We injected H1R or H2R antagonists to identify the receptor responsible for the detrimental effect of HA on dopaminergic lineage and found that activation of H1R was required. Conclusion These results reveal a novel action of HA affecting dopaminergic lineage during VM development.
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Affiliation(s)
| | | | | | | | | | | | - Iván Velasco
- Instituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, México D,F,-04510, Mexico.
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19
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Tan YT, McPherson GE, Peretz I, Berkovic SF, Wilson SJ. The genetic basis of music ability. Front Psychol 2014; 5:658. [PMID: 25018744 PMCID: PMC4073543 DOI: 10.3389/fpsyg.2014.00658] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 06/08/2014] [Indexed: 01/18/2023] Open
Abstract
Music is an integral part of the cultural heritage of all known human societies, with the capacity for music perception and production present in most people. Researchers generally agree that both genetic and environmental factors contribute to the broader realization of music ability, with the degree of music aptitude varying, not only from individual to individual, but across various components of music ability within the same individual. While environmental factors influencing music development and expertise have been well investigated in the psychological and music literature, the interrogation of possible genetic influences has not progressed at the same rate. Recent advances in genetic research offer fertile ground for exploring the genetic basis of music ability. This paper begins with a brief overview of behavioral and molecular genetic approaches commonly used in human genetic analyses, and then critically reviews the key findings of genetic investigations of the components of music ability. Some promising and converging findings have emerged, with several loci on chromosome 4 implicated in singing and music perception, and certain loci on chromosome 8q implicated in absolute pitch and music perception. The gene AVPR1A on chromosome 12q has also been implicated in music perception, music memory, and music listening, whereas SLC6A4 on chromosome 17q has been associated with music memory and choir participation. Replication of these results in alternate populations and with larger samples is warranted to confirm the findings. Through increased research efforts, a clearer picture of the genetic mechanisms underpinning music ability will hopefully emerge.
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Affiliation(s)
- Yi Ting Tan
- Melbourne Conservatorium of Music, University of Melbourne Parkville, VIC, Australia
| | - Gary E McPherson
- Melbourne Conservatorium of Music, University of Melbourne Parkville, VIC, Australia
| | - Isabelle Peretz
- International Laboratory for Brain, Music and Sound Research and Department of Psychology, Université de Montréal Montreal, QC, Canada
| | - Samuel F Berkovic
- Department of Medicine, Epilepsy Research Centre, University of Melbourne Heidelberg, VIC, Australia
| | - Sarah J Wilson
- Department of Medicine, Epilepsy Research Centre, University of Melbourne Heidelberg, VIC, Australia ; Melbourne School of Psychological Sciences, University of Melbourne Parkville, VIC, Australia
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20
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Achim K, Salminen M, Partanen J. Mechanisms regulating GABAergic neuron development. Cell Mol Life Sci 2014; 71:1395-415. [PMID: 24196748 PMCID: PMC11113277 DOI: 10.1007/s00018-013-1501-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 10/10/2013] [Accepted: 10/14/2013] [Indexed: 12/17/2022]
Abstract
Neurons using gamma-aminobutyric acid (GABA) as their neurotransmitter are the main inhibitory neurons in the mature central nervous system (CNS) and show great variation in their form and function. GABAergic neurons are produced in all of the main domains of the CNS, where they develop from discrete regions of the neuroepithelium. Here, we review the gene expression and regulatory mechanisms controlling the main steps of GABAergic neuron development: early patterning of the proliferative neuroepithelium, production of postmitotic neural precursors, establishment of their identity and migration. By comparing the molecular regulation of these events across CNS, we broadly identify three regions utilizing distinct molecular toolkits for GABAergic fate determination: telencephalon-anterior diencephalon (DLX2 type), posterior diencephalon-midbrain (GATA2 type) and hindbrain-spinal cord (PTF1A and TAL1 types). Similarities and differences in the molecular regulatory mechanisms reveal the core determinants of a GABAergic neuron as well as provide insights into generation of the vast diversity of these neurons.
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Affiliation(s)
- Kaia Achim
- EMBL Heidelberg, Meyerhofstr. 1, 69117 Heidelberg, Germany
| | - Marjo Salminen
- Department of Veterinary Biosciences, University of Helsinki, Agnes Sjobergin katu 2, PO Box 66, 00014 Helsinki, Finland
| | - Juha Partanen
- Department of Biosciences, University of Helsinki, Viikinkaari 5, PO Box 56, 00014 Helsinki, Finland
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21
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Bondke Persson A, Persson PB. Sleep. Acta Physiol (Oxf) 2014; 210:229-30. [PMID: 24350908 DOI: 10.1111/apha.12216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- A Bondke Persson
- Institute of Vegetative Physiology, Charité-Universitaetsmedizin Berlin, Berlin, Germany.
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22
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Achim K, Peltopuro P, Lahti L, Tsai HH, Zachariah A, Astrand M, Salminen M, Rowitch D, Partanen J. The role of Tal2 and Tal1 in the differentiation of midbrain GABAergic neuron precursors. Biol Open 2013; 2:990-7. [PMID: 24167708 PMCID: PMC3798194 DOI: 10.1242/bio.20135041] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 06/26/2013] [Indexed: 12/22/2022] Open
Abstract
Midbrain- and hindbrain-derived GABAergic interneurons are critical for regulation of sleep, respiratory, sensory-motor and motivational processes, and they are implicated in human neurological disorders. However, the precise mechanisms that underlie generation of GABAergic neuron diversity in the midbrain–hindbrain region are poorly understood. Here, we show unique and overlapping requirements for the related bHLH proteins Tal1 and Tal2 in GABAergic neurogenesis in the midbrain. We show that Tal2 and Tal1 are specifically and sequentially activated during midbrain GABAergic neurogenesis. Similar to Gata2, a post-mitotic selector of the midbrain GABAergic neuron identity, Tal2 expression is activated very early during GABAergic neuron differentiation. Although the expression of Tal2 and Gata2 genes are independent of each other, Tal2 is important for normal midbrain GABAergic neurogenesis, possibly as a partner of Gata2. In the absence of Tal2, the majority of midbrain GABAergic neurons switch to a glutamatergic-like phenotype. In contrast, Tal1 expression is activated in a Gata2 and Tal2 dependent fashion in the more mature midbrain GABAergic neuron precursors, but Tal1 alone is not required for GABAergic neuron differentiation from the midbrain neuroepithelium. However, inactivation of both Tal2 and Tal1 in the developing midbrain suggests that the two factors co-operate to guide GABAergic neuron differentiation in a specific ventro-lateral midbrain domain. The observed similarities and differences between Tal1/Tal2 and Gata2 mutants suggest both co-operative and unique roles for these factors in determination of midbrain GABAergic neuron identities.
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Affiliation(s)
- Kaia Achim
- Department of Biosciences, P.O. Box 56, Viikinkaari 5, FIN00014-University of Helsinki , Helsinki , Finland
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23
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Bondke Persson A, Persson PB. On beauty. Acta Physiol (Oxf) 2013; 208:215-7. [PMID: 23614940 DOI: 10.1111/apha.12108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A Bondke Persson
- Institute of Vegetative Physiology, Charité-Universitaetsmedizin Berlin, Berlin, Germany.
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