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Reginald K, Nadeem K, Yap EZY, Latiff AHA. Diving deep into fish allergen immunotherapy: Current knowledge and future directions. Asian Pac J Allergy Immunol 2024; 42:1-13. [PMID: 38165149 DOI: 10.12932/ap-030923-1687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Fish allergy is one of the "big nine" categories of food allergens worldwide, and its prevalence is increasing with the higher demand for this nutritious food source. Fish allergies are a significant health concern as it is a leading cause of food anaphylaxis, accounting for 9% of all deaths from anaphylaxis. The gaps in treating fish allergies at present are the incomplete identification of fish allergens, lack of component-resolved diagnosis of fish allergens in the clinical setting, and the variability in sensitization profiles based on different fish consumption practices. Allergen immunotherapy (AIT) improves tolerance towards accidental consumption of fish and is longer lasting than pharmacotherapy. Current practice or research of fish AIT ranges from the use of whole fish via oral desensitization, to the use of purified recombinant parvalbumin and its hypoallergenic variant, passive IgG immunization, and modifying the allergenicity of parvalbumin by changing the diet of farmed fish. However, the focus of fish allergen-based studies in the context of AIT has been restricted to parvalbumins. More research is required to understand the involvement of other fish allergens, and several other strategies of AIT including peptide vaccines, DNA vaccines, hybrid allergens, and the use of nanobodies that have the capacity to treat multiple allergens have been proposed. For AIT, other important aspects to consider are the route of desensitization, and the biomarkers to assess the success of immunotherapy. Finally, we also address several clinical considerations for fish AIT.
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Affiliation(s)
- Kavita Reginald
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Bandar Sunway, 47500, Selangor, Malaysia
| | - Kashaf Nadeem
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Bandar Sunway, 47500, Selangor, Malaysia
| | - Ervin Zheng Yang Yap
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Bandar Sunway, 47500, Selangor, Malaysia
| | - Amir Hamzah Abdul Latiff
- Sunway Centre for Planetary Health, Sunway University, Bandar Sunway, 47500, Selangor, Malaysia
- Allergy & Immunology Centre, Pantai Hospital Kuala Lumpur, 59100 Bangsar, Kuala Lumpur, Malaysia
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Leng L, Zhuang K, Lin H, Ding J, Yang S, Yuan Z, Huang C, Chen G, Chen Z, Wang M, Wang H, Sun H, Li H, Chang H, Chen Z, Xu Q, Yuan T, Zhang J. Menin Reduces Parvalbumin Expression and is Required for the Anti-Depressant Function of Ketamine. Adv Sci (Weinh) 2024; 11:e2305659. [PMID: 38044302 PMCID: PMC10837338 DOI: 10.1002/advs.202305659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/23/2023] [Indexed: 12/05/2023]
Abstract
Dysfunction of parvalbumin (PV) neurons is closely involved in depression, however, the detailed mechanism remains unclear. Based on the previous finding that multiple endocrine neoplasia type 1 (Protein: Menin; Gene: Men1) mutation (G503D) is associated with a higher risk of depression, a Menin-G503D mouse model is generated that exhibits heritable depressive-like phenotypes and increases PV expression in brain. This study generates and screens a serial of neuronal specific Men1 deletion mice, and found that PV interneuron Men1 deletion mice (PcKO) exhibit increased cortical PV levels and depressive-like behaviors. Restoration of Menin, knockdown PV expression or inhibition of PV neuronal activity in PV neurons all can ameliorate the depressive-like behaviors of PcKO mice. This study next found that ketamine stabilizes Menin by inhibiting protein kinase A (PKA) activity, which mediates the anti-depressant function of ketamine. These results demonstrate a critical role for Menin in depression, and prove that Menin is key to the antidepressant function of ketamine.
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Affiliation(s)
- Lige Leng
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Kai Zhuang
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Hui Lin
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Jinjun Ding
- Shanghai Mental Health CenterShanghai Jiaotong University School of MedicineShanghai200030P. R. China
| | - Shangchen Yang
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Ziqi Yuan
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Changquan Huang
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Guimiao Chen
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Zhenlei Chen
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Mengdan Wang
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Han Wang
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Hao Sun
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Huifang Li
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - He Chang
- Department of GeriatricsXiang'an Hospital of Xiamen universityXiamenFujian361102P. R. China
| | - Zhenyi Chen
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
| | - Qi Xu
- State Key Laboratory of Medical Molecular BiologyInstitute of Basic Medical Sciences Chinese Academy of Medical Sciences and Peking Union Medical CollegeNeuroscience CenterChinese Academy of Medical SciencesBeijing100730P. R. China
| | - Tifei Yuan
- Shanghai Mental Health CenterShanghai Jiaotong University School of MedicineShanghai200030P. R. China
| | - Jie Zhang
- Institute of NeuroscienceDepartment of AnesthesiologyThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamenFujian361102P. R. China
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Shao W, Zheng H, Zhu J, Li W, Li Y, Hu W, Zhang J, Jing L, Wang K, Jiang X. Deletions of Cacna2d3 in parvalbumin-expressing neurons leads to autistic-like phenotypes in mice. Neurochem Int 2023; 169:105569. [PMID: 37419212 DOI: 10.1016/j.neuint.2023.105569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/23/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
Autism spectrum disorder (ASD) is a series of highly inherited neurodevelopmental disorders. Loss-of-function (LOF) mutations in the CACNA2D3 gene are associated with ASD. However, the underlying mechanism is unknown. Dysfunction of cortical interneurons (INs) is strongly implicated in ASD. Parvalbumin-expressing (PV) INs and somatostatin-expressing (SOM) INs are the two most subtypes. Here, we characterized a mouse knockout of the Cacna2d3 gene in PV-expressing neurons (PVCre;Cacna2d3f/f mice) or in SOM-expressing neurons (SOMCre;Cacna2d3f/f mice), respectively. PVCre;Cacna2d3f/f mice showed deficits in the core ASD behavioral domains (including impaired sociability and increased repetitive behavior), as well as anxiety-like behavior and improved spatial memory. Furthermore, loss of Cacna2d3 from a subset of PV neurons results in a reduction of GAD67 and PV expression in the medial prefrontal cortex (mPFC). These may underlie the increased neuronal excitability in the mPFC, which contribute to the abnormal social behavior in PVCre;Cacna2d3f/f mice. Whereas, SOMCre;Cacna2d3f/f mice showed no obvious deficits in social, cognitive, or emotional phenotypes. Our findings provide the first evidence suggesting the causal role of Cacna2d3 insufficiency in PV neurons in autism.
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Affiliation(s)
- Wei Shao
- The School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, China
| | - Hang Zheng
- The School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, China
| | - Jingwen Zhu
- The School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, China
| | - Wenhao Li
- The School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, China
| | - Yifan Li
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wenjie Hu
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Juanjuan Zhang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Liang Jing
- The School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, China; Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China; Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, China.
| | - Kai Wang
- The School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, China; Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, China; Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, China; Collaborative Innovation Center for Neuropsychiatric Disorders and Mental Health, Hefei, China; Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, China.
| | - Xiao Jiang
- The School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, China; Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Hefei, China; Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, China.
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Cheffer A, Garcia-Miralles M, Maier E, Akol I, Franz H, Srinivasan VSV, Vogel T. DOT1L deletion impairs the development of cortical parvalbumin-expressing interneurons. Cereb Cortex 2023; 33:10272-10285. [PMID: 37566909 PMCID: PMC10545437 DOI: 10.1093/cercor/bhad281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 08/13/2023] Open
Abstract
The cortical plate (CP) is composed of excitatory and inhibitory neurons, the latter of which originate in the ganglionic eminences. From their origin in the ventral telencephalon, maturing postmitotic interneurons migrate during embryonic development over some distance to reach their final destination in the CP. The histone methyltransferase Disruptor of Telomeric Silencing 1-like (DOT1L) is necessary for proper CP development and layer distribution of glutamatergic neurons. However, its specific role on cortical interneuron development has not yet been explored. Here, we demonstrate that DOT1L affects interneuron development in a cell autonomous manner. Deletion of Dot1l in Nkx2.1-expressing interneuron precursor cells results in an overall reduction and altered distribution of GABAergic interneurons in the CP from postnatal day 0 onwards. We observed an altered proportion of GABAergic interneurons in the cortex, with a significant decrease in parvalbumin-expressing interneurons. Moreover, a decreased number of mitotic cells at the embryonic day E14.5 was observed upon Dot1l deletion. Altogether, our results indicate that reduced numbers of cortical interneurons upon DOT1L deletion result from premature cell cycle exit, but effects on postmitotic differentiation, maturation, and migration are likely at play as well.
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Affiliation(s)
- Arquimedes Cheffer
- Department of Molecular Embryology, Medical Faculty, Institute of Anatomy and Cell Biology, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
| | - Marta Garcia-Miralles
- Department of Molecular Embryology, Medical Faculty, Institute of Anatomy and Cell Biology, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
| | - Esther Maier
- Department of Molecular Embryology, Medical Faculty, Institute of Anatomy and Cell Biology, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
| | - Ipek Akol
- Department of Molecular Embryology, Medical Faculty, Institute of Anatomy and Cell Biology, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
- Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
| | - Henriette Franz
- Department of Molecular Embryology, Medical Faculty, Institute of Anatomy and Cell Biology, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
| | - Vandana Shree Vedartham Srinivasan
- Department of Molecular Embryology, Medical Faculty, Institute of Anatomy and Cell Biology, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
| | - Tanja Vogel
- Department of Molecular Embryology, Medical Faculty, Institute of Anatomy and Cell Biology, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
- Center for Basics in NeuroModulation (NeuroModul Basics), Medical Faculty, Albert-Ludwigs-University Freiburg, Freiburg 79104, Germany
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Kourdougli N, Suresh A, Liu B, Juarez P, Lin A, Chung DT, Graven Sams A, Gandal MJ, Martínez-Cerdeño V, Buonomano DV, Hall BJ, Mombereau C, Portera-Cailliau C. Improvement of sensory deficits in fragile X mice by increasing cortical interneuron activity after the critical period. Neuron 2023; 111:2863-2880.e6. [PMID: 37451263 PMCID: PMC10529373 DOI: 10.1016/j.neuron.2023.06.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 04/14/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023]
Abstract
Changes in the function of inhibitory interneurons (INs) during cortical development could contribute to the pathophysiology of neurodevelopmental disorders. Using all-optical in vivo approaches, we find that parvalbumin (PV) INs and their immature precursors are hypoactive and transiently decoupled from excitatory neurons in postnatal mouse somatosensory cortex (S1) of Fmr1 KO mice, a model of fragile X syndrome (FXS). This leads to a loss of parvalbumin INs (PV-INs) in both mice and humans with FXS. Increasing the activity of future PV-INs in neonatal Fmr1 KO mice restores PV-IN density and ameliorates transcriptional dysregulation in S1, but not circuit dysfunction. Critically, administering an allosteric modulator of Kv3.1 channels after the S1 critical period does rescue circuit dynamics and tactile defensiveness. Symptoms in FXS and related disorders could be mitigated by targeting PV-INs.
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Affiliation(s)
| | - Anand Suresh
- Department of Neurology, UCLA, Los Angeles, CA, USA
| | - Benjamin Liu
- Department of Neurology, UCLA, Los Angeles, CA, USA
| | - Pablo Juarez
- Department of Pathology, UC Davis, Davis, CA, USA
| | - Ashley Lin
- Department of Neurology, UCLA, Los Angeles, CA, USA
| | | | | | | | | | - Dean V Buonomano
- Department of Neurology, UCLA, Los Angeles, CA, USA; Department of Psychology, UCLA, Los Angeles, CA, USA
| | | | | | - Carlos Portera-Cailliau
- Department of Neurology, UCLA, Los Angeles, CA, USA; Department of Neurobiology, UCLA, Los Angeles, CA, USA.
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Camp CR, Vlachos A, Klöckner C, Krey I, Banke TG, Shariatzadeh N, Ruggiero SM, Galer P, Park KL, Caccavano A, Kimmel S, Yuan X, Yuan H, Helbig I, Benke TA, Lemke JR, Pelkey KA, McBain CJ, Traynelis SF. Loss of Grin2a causes a transient delay in the electrophysiological maturation of hippocampal parvalbumin interneurons. Commun Biol 2023; 6:952. [PMID: 37723282 PMCID: PMC10507040 DOI: 10.1038/s42003-023-05298-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 08/29/2023] [Indexed: 09/20/2023] Open
Abstract
N-methyl-D-aspartate receptors (NMDARs) are ligand-gated ionotropic glutamate receptors that mediate a calcium-permeable component to fast excitatory neurotransmission. NMDARs are heterotetrameric assemblies of two obligate GluN1 subunits (GRIN1) and two GluN2 subunits (GRIN2A-GRIN2D). Sequencing data shows that 43% (297/679) of all currently known NMDAR disease-associated genetic variants are within the GRIN2A gene, which encodes the GluN2A subunit. Here, we show that unlike missense GRIN2A variants, individuals affected with disease-associated null GRIN2A variants demonstrate a transient period of seizure susceptibility that begins during infancy and diminishes near adolescence. We show increased circuit excitability and CA1 pyramidal cell output in juvenile mice of both Grin2a+/- and Grin2a-/- mice. These alterations in somatic spiking are not due to global upregulation of most Grin genes (including Grin2b). Deeper evaluation of the developing CA1 circuit led us to uncover age- and Grin2a gene dosing-dependent transient delays in the electrophysiological maturation programs of parvalbumin (PV) interneurons. We report that Grin2a+/+ mice reach PV cell electrophysiological maturation between the neonatal and juvenile neurodevelopmental timepoints, with Grin2a+/- mice not reaching PV cell electrophysiological maturation until preadolescence, and Grin2a-/- mice not reaching PV cell electrophysiological maturation until adulthood. Overall, these data may represent a molecular mechanism describing the transient nature of seizure susceptibility in disease-associated null GRIN2A patients.
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Affiliation(s)
- Chad R Camp
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Anna Vlachos
- Section on Cellular and Synaptic Physiology, Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Chiara Klöckner
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
| | - Ilona Krey
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
| | - Tue G Banke
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Nima Shariatzadeh
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Sarah M Ruggiero
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - Peter Galer
- Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, 19146, USA
| | - Kristen L Park
- University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, 80045, USA
| | - Adam Caccavano
- Section on Cellular and Synaptic Physiology, Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Sarah Kimmel
- Section on Cellular and Synaptic Physiology, Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Xiaoqing Yuan
- Section on Cellular and Synaptic Physiology, Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Hongjie Yuan
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
- Center for Functional Evaluation of Rare Variants, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Ingo Helbig
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
- Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, 19146, USA
- Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA
| | - Tim A Benke
- University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, CO, 80045, USA
| | - Johannes R Lemke
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
- Center for Rare Diseases, University of Leipzig Medical Center, Leipzig, Germany
| | - Kenneth A Pelkey
- Section on Cellular and Synaptic Physiology, Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Chris J McBain
- Section on Cellular and Synaptic Physiology, Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Stephen F Traynelis
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA.
- Center for Functional Evaluation of Rare Variants, Emory University School of Medicine, Atlanta, GA, 30322, USA.
- Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA, 30322, USA.
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Proskurina EY, Chizhov AV, Zaitsev AV. Optogenetic Low-Frequency Stimulation of Principal Neurons, but Not Parvalbumin-Positive Interneurons, Prevents Generation of Ictal Discharges in Rodent Entorhinal Cortex in an In Vitro 4-Aminopyridine Model. Int J Mol Sci 2022; 24:ijms24010195. [PMID: 36613660 PMCID: PMC9820186 DOI: 10.3390/ijms24010195] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Low-frequency electrical stimulation is used to treat some drug-resistant forms of epilepsy. Despite the effectiveness of the method in suppressing seizures, there is a considerable risk of side effects. An optogenetic approach allows the targeting of specific populations of neurons, which can increase the effectiveness and safety of low-frequency stimulation. In our study, we tested the efficacy of the suppression of ictal activity in entorhinal cortex slices in a 4-aminopyridine model with three variants of low-frequency light stimulation (LFLS): (1) activation of excitatory and inhibitory neurons (on Thy1-ChR2-YFP mice), (2) activation of inhibitory interneurons only (on PV-Cre mice after virus injection with channelrhodopsin2 gene), and (3) hyperpolarization of excitatory neurons (on Wistar rats after virus injection with archaerhodopsin gene). Only in the first variant did simultaneous LFLS of excitatory and inhibitory neurons replace ictal activity with interictal activity. We suggest that LFLS caused changes in the concentration gradients of K+ and Na+ cations across the neuron membrane, which activated Na-K pumping. According to the mathematical modeling, the increase in Na-K pump activity in neurons induced by LFLS led to an antiepileptic effect. Thus, a less specific and generalized optogenetic effect on entorhinal cortex neurons was more effective in suppressing ictal activity in the 4-aminopyridine model.
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Affiliation(s)
- Elena Y. Proskurina
- Almazov National Medical Research Centre, 2 Akkuratova Street, 197341 St. Petersburg, Russia
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, 44 Toreza Prospekt, 194223 St. Petersburg, Russia
| | - Anton V. Chizhov
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, 44 Toreza Prospekt, 194223 St. Petersburg, Russia
- Computational Physics Laboratory, Ioffe Institute, 26 Polytekhnicheskaya Street, 194021 St. Petersburg, Russia
- MathNeuro Team, Inria Centre at Universite Cote d’Azur, 06902 Sophia Antipolis, France
| | - Aleksey V. Zaitsev
- Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, 44 Toreza Prospekt, 194223 St. Petersburg, Russia
- Correspondence:
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Aksun Tümerkan ET. Detection of Parvalbumin Fish Allergen in Canned Tuna by Real-Time PCR Driven by Tuna Species and Can-Filling Medium. Molecules 2022; 27:molecules27175674. [PMID: 36080437 PMCID: PMC9457812 DOI: 10.3390/molecules27175674] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/26/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022]
Abstract
Canned tuna is considered one of the most popular and most commonly consumed products in the seafood market, globally. However, in past decades, fish allergens have been detected as the main concern regarding food safety in these seafood products and are listed as the top eight food allergies. In the group of fish allergens, parvalbumin is the most common. As a thermally stable and calcium-binding protein, parvalbumin can be easily altered with changing the food matrices. This study investigated the effect of a can-filling medium (tomato sauce, spices, and brine solutions) on the parvalbumin levels in canned tuna. The effect of pH, calcium content, and the DNA quality of canned tuna was also investigated before the parvalbumin-specific encoded gene amplification. The presence of fish allergens was determined by melting curve analyses and confirmed by agarose gel electrophoresis. The obtained results showed that the presence of parvalbumin in commercially canned tuna was driven by can-filling mediums, thermal conductivity, calcium content, and the acidity of various ingredients in food matrices. The intra-specific differences revealed a variation in fish allergens that are caused by cryptic species. This study proved that allergens encoding gene analyses by agarose electrophoresis could be used as a reliable approach for other food-borne allergens in complex food matrices.
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Affiliation(s)
- Elif Tugce Aksun Tümerkan
- Department of Food Processing-Food Technology, Vocational School of Health Services, Ankara Yıldırım Beyazıt University, Ankara 06760, Turkey;
- AYBU Central Research Laboratory, Application and Research Center, Ankara Yıldırım Beyazıt University, Ankara 06010, Turkey
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Boxer EE, Seng C, Lukacsovich D, Kim J, Schwartz S, Kennedy MJ, Földy C, Aoto J. Neurexin-3 defines synapse- and sex-dependent diversity of GABAergic inhibition in ventral subiculum. Cell Rep 2021; 37:110098. [PMID: 34879268 PMCID: PMC8763380 DOI: 10.1016/j.celrep.2021.110098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/09/2021] [Accepted: 11/15/2021] [Indexed: 11/24/2022] Open
Abstract
Ventral subiculum (vSUB) is integral to the regulation of stress and reward; however, the intrinsic connectivity and synaptic properties of the inhibitory local circuit are poorly understood. Neurexin-3 (Nrxn3) is highly expressed in hippocampal inhibitory neurons, but its function at inhibitory synapses has remained elusive. Using slice electrophysiology, imaging, and single-cell RNA sequencing, we identify multiple roles for Nrxn3 at GABAergic parvalbumin (PV) interneuron synapses made onto vSUB regular-spiking (RS) and burst-spiking (BS) principal neurons. Surprisingly, we find that intrinsic connectivity of vSUB and synaptic function of Nrxn3 in vSUB are sexually dimorphic. We reveal that PVs make preferential contact with RS neurons in male mice, but BS neurons in female mice. Furthermore, we determine that despite comparable Nrxn3 isoform expression in male and female PV neurons, Nrxn3 knockout impairs synapse density, postsynaptic strength, and inhibitory postsynaptic current (IPSC) amplitude at PV-RS synapses in males, but enhances presynaptic release and IPSC amplitude in females.
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Affiliation(s)
- Emma E Boxer
- University of Colorado Anschutz, Department of Pharmacology, Aurora, CO 80045, USA; Neuroscience Graduate Program, University of Colorado Anschutz, Aurora, CO 80045, USA
| | - Charlotte Seng
- Laboratory of Neural Connectivity, Brain Research Institute, Faculties of Medicine and Science, University of Zurich, 8057 Zurich, Switzerland
| | - David Lukacsovich
- Laboratory of Neural Connectivity, Brain Research Institute, Faculties of Medicine and Science, University of Zurich, 8057 Zurich, Switzerland
| | - JungMin Kim
- University of Colorado Anschutz, Department of Pharmacology, Aurora, CO 80045, USA; Neuroscience Graduate Program, University of Colorado Anschutz, Aurora, CO 80045, USA
| | - Samantha Schwartz
- University of Colorado Anschutz, Department of Pharmacology, Aurora, CO 80045, USA
| | - Matthew J Kennedy
- University of Colorado Anschutz, Department of Pharmacology, Aurora, CO 80045, USA
| | - Csaba Földy
- Laboratory of Neural Connectivity, Brain Research Institute, Faculties of Medicine and Science, University of Zurich, 8057 Zurich, Switzerland
| | - Jason Aoto
- University of Colorado Anschutz, Department of Pharmacology, Aurora, CO 80045, USA.
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10
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Yau JOY, Chaichim C, Power JM, McNally GP. The Roles of Basolateral Amygdala Parvalbumin Neurons in Fear Learning. J Neurosci 2021; 41:9223-9234. [PMID: 34561234 PMCID: PMC8570827 DOI: 10.1523/jneurosci.2461-20.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 11/21/2022] Open
Abstract
The basolateral amygdala (BLA) is obligatory for fear learning. This learning is linked to BLA excitatory projection neurons whose activity is regulated by complex networks of inhibitory interneurons, dominated by parvalbumin (PV)-expressing GABAergic neurons. The roles of these GABAergic interneurons in learning to fear and learning not to fear, activity profiles of these interneurons across the course of fear learning, and whether or how these change across the course of learning all remain poorly understood. Here, we used PV cell-type-specific recording and manipulation approaches in male transgenic PV-Cre rats during pavlovian fear conditioning to address these issues. We show that activity of BLA PV neurons during the moments of aversive reinforcement controls fear learning about aversive events, but activity during moments of nonreinforcement does not control fear extinction learning. Furthermore, we show expectation-modulation of BLA PV neurons during fear learning, with greater activity to an unexpected than expected aversive unconditioned stimulus (US). This expectation-modulation was specifically because of BLA PV neuron sensitivity to aversive prediction error. Finally, we show that BLA PV neuron function in fear learning is conserved across these variations in prediction error. We suggest that aversive prediction-error modulation of PV neurons could enable BLA fear-learning circuits to retain selectivity for specific sensory features of aversive USs despite variations in the strength of US inputs, thereby permitting the rapid updating of fear associations when these sensory features change.SIGNIFICANCE STATEMENT The capacity to learn about sources of danger in the environment is essential for survival. This learning depends on complex microcircuitries of inhibitory interneurons in the basolateral amygdala. Here, we show that parvalbumin-positive GABAergic interneurons in the rat basolateral amygdala are important for fear learning during moments of danger, but not for extinction learning during moments of safety, and that the activity of these neurons is modulated by expectation of danger. This may enable fear-learning circuits to retain selectivity for specific aversive events across variations in expectation, permitting the rapid updating of learning when aversive events change.
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Affiliation(s)
- Joanna Oi-Yue Yau
- School of Psychology, University of New South Wales Sydney, Sydney, New South Wales 2052, Australia
| | - Chanchanok Chaichim
- Department of Physiology, Translational Neuroscience Facility, School of Medical Sciences, University of New South Wales Sydney, Sydney, New South Wales 2052, Australia
| | - John M Power
- Department of Physiology, Translational Neuroscience Facility, School of Medical Sciences, University of New South Wales Sydney, Sydney, New South Wales 2052, Australia
| | - Gavan P McNally
- School of Psychology, University of New South Wales Sydney, Sydney, New South Wales 2052, Australia
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11
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Graham K, Spruston N, Bloss EB. Hippocampal and thalamic afferents form distinct synaptic microcircuits in the mouse infralimbic frontal cortex. Cell Rep 2021; 37:109837. [PMID: 34686328 DOI: 10.1016/j.celrep.2021.109837] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/12/2021] [Accepted: 09/23/2021] [Indexed: 12/24/2022] Open
Abstract
The selection of goal-directed behaviors is supported by neural circuits located within the frontal cortex. Frontal cortical afferents arise from multiple brain areas, yet the cell-type-specific targeting of these inputs is unclear. Here, we use monosynaptic retrograde rabies mapping to examine the distribution of afferent neurons targeting distinct classes of local inhibitory interneurons and excitatory projection neurons in mouse infralimbic frontal cortex. Interneurons expressing parvalbumin, somatostatin, or vasoactive intestinal peptide receive a large proportion of inputs from the hippocampus, while interneurons expressing neuron-derived neurotrophic factor receive a large proportion of inputs from thalamic regions. A similar dichotomy is present among the four different excitatory projection neurons. These results show a prominent bias among long-range hippocampal and thalamic afferent systems in their targeting to specific sets of frontal cortical neurons. Moreover, they suggest the presence of two distinct local microcircuits that control how different inputs govern frontal cortical information processing.
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Affiliation(s)
- Kourtney Graham
- The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04609, USA
| | - Nelson Spruston
- Howard Hughes Medical Institute, Janelia Research Campus, Ashburn, VA 20147, USA
| | - Erik B Bloss
- Howard Hughes Medical Institute, Janelia Research Campus, Ashburn, VA 20147, USA; The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04609, USA.
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12
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Vologzhannikova AA, Shevelyova MP, Kazakov AS, Sokolov AS, Borisova NI, Permyakov EA, Kircheva N, Nikolova V, Dudev T, Permyakov SE. Strontium Binding to α-Parvalbumin, a Canonical Calcium-Binding Protein of the "EF-Hand" Family. Biomolecules 2021; 11:biom11081158. [PMID: 34439824 PMCID: PMC8392015 DOI: 10.3390/biom11081158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 07/30/2021] [Accepted: 07/31/2021] [Indexed: 02/07/2023] Open
Abstract
Strontium salts are used for treatment of osteoporosis and bone cancer, but their impact on calcium-mediated physiological processes remains obscure. To explore Sr2+ interference with Ca2+ binding to proteins of the EF-hand family, we studied Sr2+/Ca2+ interaction with a canonical EF-hand protein, α-parvalbumin (α-PA). Evaluation of the equilibrium metal association constants for the active Ca2+ binding sites of recombinant human α-PA (‘CD’ and ‘EF’ sites) from fluorimetric titration experiments and isothermal titration calorimetry data gave 4 × 109 M−1 and 4 × 109 M−1 for Ca2+, and 2 × 107 M−1 and 2 × 106 M−1 for Sr2+. Inactivation of the EF site by homologous substitution of the Ca2+-coordinating Glu in position 12 of the EF-loop by Gln decreased Ca2+/Sr2+ affinity of the protein by an order of magnitude, whereas the analogous inactivation of the CD site induced much deeper suppression of the Ca2+/Sr2+ affinity. These results suggest that Sr2+ and Ca2+ bind to CD/EF sites of α-PA and the Ca2+/Sr2+ binding are sequential processes with the CD site being occupied first. Spectrofluorimetric Sr2+ titration of the Ca2+-loaded α-PA revealed presence of secondary Sr2+ binding site(s) with an apparent equilibrium association constant of 4 × 105 M−1. Fourier-transform infrared spectroscopy data evidence that Ca2+/Sr2+-loaded forms of α-PA exhibit similar states of their COO− groups. Near-UV circular dichroism (CD) data show that Ca2+/Sr2+ binding to α-PA induce similar changes in symmetry of microenvironment of its Phe residues. Far-UV CD experiments reveal that Ca2+/Sr2+ binding are accompanied by nearly identical changes in secondary structure of α-PA. Meanwhile, scanning calorimetry measurements show markedly lower Sr2+-induced increase in stability of tertiary structure of α-PA, compared to the Ca2+-induced effect. Theoretical modeling using Density Functional Theory computations with Polarizable Continuum Model calculations confirms that Ca2+-binding sites of α-PA are well protected against exchange of Ca2+ for Sr2+ regardless of coordination number of Sr2+, solvent exposure or rigidity of sites. The latter appears to be a key determinant of the Ca2+/Sr2+ selectivity. Overall, despite lowered affinity of α-PA to Sr2+, the latter competes with Ca2+ for the same EF-hands and induces similar structural rearrangements. The presence of a secondary Sr2+ binding site(s) could be a factor contributing to Sr2+ impact on the functional activity of proteins.
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Affiliation(s)
- Alisa A. Vologzhannikova
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, 142290 Moscow, Russia; (A.A.V.); (M.P.S.); (A.S.K.); (A.S.S.); (N.I.B.); (E.A.P.)
| | - Marina P. Shevelyova
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, 142290 Moscow, Russia; (A.A.V.); (M.P.S.); (A.S.K.); (A.S.S.); (N.I.B.); (E.A.P.)
| | - Alexey S. Kazakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, 142290 Moscow, Russia; (A.A.V.); (M.P.S.); (A.S.K.); (A.S.S.); (N.I.B.); (E.A.P.)
| | - Andrey S. Sokolov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, 142290 Moscow, Russia; (A.A.V.); (M.P.S.); (A.S.K.); (A.S.S.); (N.I.B.); (E.A.P.)
| | - Nadezhda I. Borisova
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, 142290 Moscow, Russia; (A.A.V.); (M.P.S.); (A.S.K.); (A.S.S.); (N.I.B.); (E.A.P.)
| | - Eugene A. Permyakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, 142290 Moscow, Russia; (A.A.V.); (M.P.S.); (A.S.K.); (A.S.S.); (N.I.B.); (E.A.P.)
| | - Nikoleta Kircheva
- Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Valya Nikolova
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kl. Ohridski”, 1164 Sofia, Bulgaria; (V.N.); (T.D.)
| | - Todor Dudev
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kl. Ohridski”, 1164 Sofia, Bulgaria; (V.N.); (T.D.)
| | - Sergei E. Permyakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, 142290 Moscow, Russia; (A.A.V.); (M.P.S.); (A.S.K.); (A.S.S.); (N.I.B.); (E.A.P.)
- Correspondence: ; Tel.: +7-(4967)-143-7741
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13
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Kanu B, Kia GSN, Aimola IA, Korie GC, Tekki IS. Rabies virus infection is associated with alterations in the expression of parvalbumin and secretagogin in mice brain. Metab Brain Dis 2021; 36:1267-1275. [PMID: 33783673 PMCID: PMC8008021 DOI: 10.1007/s11011-021-00717-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 03/14/2021] [Indexed: 12/21/2022]
Abstract
Infection with the deadly rabies virus (RABV) leads to alteration of cellular gene expression. The RABV, similar to other neurodegenerative diseases may be implicated in neuronal death due to an imbalance in Ca2+ homeostasis. Parvalbumin (PV) and Secretagogin (Scgn), two members of the Calcium-Binding Proteins (CBPs) are useful neuronal markers responsible for calcium regulation and buffering with possible protective roles against infections. This study investigated whether infection with rabies virus causes variance in expression levels of PV and Scgn using the Challenge virus standard (CVS) and Nigerian Street Rabies virus (SRV) strains. Forty-eight, 4-week-old BALB/c mice strains were divided into two test groups and challenged with Rabies virus (RABV) infection and one control group. The presence of RABV antigen was verified by direct fluorescent antibody test (DFAT) and real-time quantitative PCR (qRT-PCR) was used to assess PV and Scgn gene expression. Infection with both virus strains resulted in significant (p < 0.05) increases in expression during early infection. Mid-infection phase caused reduced expression for both genes. However, as infection progressed to the terminal phase, a lower increase in expression was measured. Gene expression and viral load correlation indicated no positive relationship. Neurons with these CBPs may have a greater capacity to buffer calcium and be more resistant to degenerative changes caused by RABV. This implies that, when PV and Scgn expression levels are kept adequately high, the integrity of neurons may be maintained and degeneration caused by RABV infection may be prevented or stopped, hence, these are possible constituents of effective rabies therapy.
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Affiliation(s)
- Brenda Kanu
- Department of Biochemistry, Ahmadu Bello University, Zaria, Kaduna State, Nigeria.
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University Centre, Zaria, Kaduna State, Nigeria.
| | - Grace S N Kia
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University Centre, Zaria, Kaduna State, Nigeria
- Department of Veterinary Public Health, Ahmadu Bello University, Zaria, Kaduna State, Nigeria
| | - Idowu A Aimola
- Department of Biochemistry, Ahmadu Bello University, Zaria, Kaduna State, Nigeria
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University Centre, Zaria, Kaduna State, Nigeria
| | - George C Korie
- Department of Biochemistry, Ahmadu Bello University, Zaria, Kaduna State, Nigeria
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University Centre, Zaria, Kaduna State, Nigeria
| | - Ishaya S Tekki
- Central Diagnostics Laboratory, National Veterinary Research Institute, Vom, Plateau State, Nigeria
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14
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Siemian JN, Arenivar MA, Sarsfield S, Borja CB, Erbaugh LJ, Eagle AL, Robison AJ, Leinninger G, Aponte Y. An excitatory lateral hypothalamic circuit orchestrating pain behaviors in mice. eLife 2021; 10:e66446. [PMID: 34042586 PMCID: PMC8159376 DOI: 10.7554/elife.66446] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/12/2021] [Indexed: 11/13/2022] Open
Abstract
Understanding how neuronal circuits control nociceptive processing will advance the search for novel analgesics. We use functional imaging to demonstrate that lateral hypothalamic parvalbumin-positive (LHPV) glutamatergic neurons respond to acute thermal stimuli and a persistent inflammatory irritant. Moreover, their chemogenetic modulation alters both pain-related behavioral adaptations and the unpleasantness of a noxious stimulus. In two models of persistent pain, optogenetic activation of LHPV neurons or their ventrolateral periaqueductal gray area (vlPAG) axonal projections attenuates nociception, and neuroanatomical tracing reveals that LHPV neurons preferentially target glutamatergic over GABAergic neurons in the vlPAG. By contrast, LHPV projections to the lateral habenula regulate aversion but not nociception. Finally, we find that LHPV activation evokes additive to synergistic antinociceptive interactions with morphine and restores morphine antinociception following the development of morphine tolerance. Our findings identify LHPV neurons as a lateral hypothalamic cell type involved in nociception and demonstrate their potential as a target for analgesia.
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Affiliation(s)
- Justin N Siemian
- Neuronal Circuits and Behavior Unit, National Institute on Drug Abuse Intramural Research Program, National Institutes of HealthBaltimoreUnited States
| | - Miguel A Arenivar
- Neuronal Circuits and Behavior Unit, National Institute on Drug Abuse Intramural Research Program, National Institutes of HealthBaltimoreUnited States
| | - Sarah Sarsfield
- Neuronal Circuits and Behavior Unit, National Institute on Drug Abuse Intramural Research Program, National Institutes of HealthBaltimoreUnited States
| | - Cara B Borja
- Neuronal Circuits and Behavior Unit, National Institute on Drug Abuse Intramural Research Program, National Institutes of HealthBaltimoreUnited States
| | - Lydia J Erbaugh
- Neuronal Circuits and Behavior Unit, National Institute on Drug Abuse Intramural Research Program, National Institutes of HealthBaltimoreUnited States
| | - Andrew L Eagle
- Department of Physiology, Michigan State UniversityEast LansingUnited States
| | - Alfred J Robison
- Department of Physiology, Michigan State UniversityEast LansingUnited States
| | - Gina Leinninger
- Department of Physiology, Michigan State UniversityEast LansingUnited States
- Institute for Integrative Toxicology at Michigan State UniversityEast LansingUnited States
| | - Yeka Aponte
- Neuronal Circuits and Behavior Unit, National Institute on Drug Abuse Intramural Research Program, National Institutes of HealthBaltimoreUnited States
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of MedicineBaltimoreUnited States
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15
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Wu JY, Liu HZ, Qi YQ, Wu XY, Chen Y, Lyu JT, Gong L, He M. [Cortical 5-hydroxytryptamine receptor 3A (Htr3a) positive inhibitory neurons: diversity in type and function]. Sheng Li Xue Bao 2021; 73:295-305. [PMID: 33903891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cortical GABAergic inhibitory neurons are composed of three major classes, each expressing parvalbumin (PV), somatostatin (SOM) and 5-hydroxytryptamine receptor 3A (Htr3a), respectively. Htr3a+ inhibitory neurons are mainly derived from the caudal ganglionic eminence (CGE). This highly heterogeneous group of inhibitory neurons are comprised of many different subtypes with distinct molecular signatures, morphological and electrophysiological properties and connectivity patterns. In this review, we summarized recent research progress regarding cortical Htr3a+ inhibitory neurons, focusing on their molecular, morphological and electrophysiological diversity, and introduced some genetic mouse tools that were used to study Htr3a+ inhibitory neurons.
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Affiliation(s)
- Jin-Yun Wu
- Institutes of Brain Science, Fudan University, Shanghai 200032, China.
| | - Hong-Zhi Liu
- Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Yan-Qing Qi
- Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Xiao-Yang Wu
- Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Yang Chen
- Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Jiang-Teng Lyu
- Shanghai Jiao Tong University College of Basic Medical Sciences, Shanghai 200025, China
| | - Ling Gong
- Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Miao He
- Institutes of Brain Science, Fudan University, Shanghai 200032, China.
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16
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Sawada K, Kamiya S, Aoki I. Neonatal valproic acid exposure produces altered gyrification related to increased parvalbumin-immunopositive neuron density with thickened sulcal floors. PLoS One 2021; 16:e0250262. [PMID: 33878144 PMCID: PMC8057614 DOI: 10.1371/journal.pone.0250262] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/01/2021] [Indexed: 12/30/2022] Open
Abstract
Valproic acid (VPA) treatment is associated with autism spectrum disorder in humans, and ferrets can be used as a model to test this; so far, it is not known whether ferrets react to developmental VPA exposure with gyrencephalic abnormalities. The current study characterized gyrification abnormalities in ferrets following VPA exposure during neonatal periods, corresponding to the late stage of cortical neurogenesis as well as the early stage of sulcogyrogenesis. Ferret pups received intraperitoneal VPA injections (200 μg/g of body weight) on postnatal days (PD) 6 and 7. BrdU was administered simultaneously at the last VPA injection. Ex vivo MRI-based morphometry demonstrated significantly lower gyrification index (GI) throughout the cortex in VPA-treated ferrets (1.265 ± 0.027) than in control ferrets (1.327 ± 0.018) on PD 20, when primary sulcogyrogenesis is complete. VPA-treated ferrets showed significantly smaller sulcal-GIs in the rostral suprasylvian sulcus and splenial sulcus but a larger lateral sulcus surface area than control ferrets. The floor cortex of the inner stratum of both the rostral suprasylvian and splenial sulci and the outer stratum of the lateral sulcus showed a relatively prominent expansion. Parvalbumin-positive neuron density was significantly greater in the expanded cortical strata of sulcal floors in VPA-treated ferrets, regardless of the BrdU-labeled status. Thus, VPA exposure during the late stage of cortical neurogenesis may alter gyrification, primarily in the frontal and parietotemporal cortical divisions. Altered gyrification may thicken the outer or inner stratum of the cerebral cortex by increasing parvalbumin-positive neuron density.
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Affiliation(s)
- Kazuhiko Sawada
- Department of Nutrition, Faculty of Medical and Health Sciences, Tsukuba International University, Tsuchiura, Ibaraki, Japan
- * E-mail: (KS); (IA)
| | - Shiori Kamiya
- Department of Nutrition, Faculty of Medical and Health Sciences, Tsukuba International University, Tsuchiura, Ibaraki, Japan
| | - Ichio Aoki
- Department of Molecular Imaging and Theranostics, NIRS, National Institutes for Quantum and Radiological Science and Technology (QST), Chib, Japan
- * E-mail: (KS); (IA)
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17
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Guyon N, Zacharias LR, van Lunteren JA, Immenschuh J, Fuzik J, Märtin A, Xuan Y, Zilberter M, Kim H, Meletis K, Lopes-Aguiar C, Carlén M. Adult trkB Signaling in Parvalbumin Interneurons is Essential to Prefrontal Network Dynamics. J Neurosci 2021; 41:3120-3141. [PMID: 33593856 PMCID: PMC8026352 DOI: 10.1523/jneurosci.1848-20.2021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/16/2021] [Accepted: 01/25/2021] [Indexed: 01/29/2023] Open
Abstract
Inhibitory interneurons expressing parvalbumin (PV) are central to cortical network dynamics, generation of γ oscillations, and cognition. Dysfunction of PV interneurons disrupts cortical information processing and cognitive behavior. Brain-derived neurotrophic factor (BDNF)/tyrosine receptor kinase B (trkB) signaling regulates the maturation of cortical PV interneurons but is also implicated in their adult multidimensional functions. Using a novel viral strategy for cell-type-specific and spatially restricted expression of a dominant-negative trkB (trkB.DN), we show that BDNF/trkB signaling is essential to the integrity and maintenance of prefrontal PV interneurons in adult male and female mice. Reduced BDNF/trkB signaling in PV interneurons in the medial prefrontal cortex (mPFC) resulted in deficient PV inhibition and increased baseline local field potential (LFP) activity in a broad frequency band. The altered network activity was particularly pronounced during increased activation of the prefrontal network and was associated with changed dynamics of local excitatory neurons, as well as decreased modulation of the LFP, abnormalities that appeared to generalize across stimuli and brain states. In addition, our findings link reduced BDNF/trkB signaling in prefrontal PV interneurons to increased aggression. Together our investigations demonstrate that BDNF/trkB signaling in PV interneurons in the adult mPFC is essential to local network dynamics and cognitive behavior. Our data provide direct support for the suggested association between decreased trkB signaling, deficient PV inhibition, and altered prefrontal circuitry.SIGNIFICANCE STATEMENT Brain-derived neurotrophic factor (BDNF)/tyrosine receptor kinase B (trkB) signaling promotes the maturation of inhibitory parvalbumin (PV) interneurons, neurons central to local cortical dynamics, γ rhythms, and cognition. Here, we used a novel viral approach for reduced BDNF/trkB signaling in PV interneurons in the medial prefrontal cortex (mPFC) to establish the role of BDNF/trkB signaling in adult prefrontal network activities. Reduced BDNF/trkB signaling caused pronounced morphologic alterations, reduced PV inhibition, and deficient prefrontal network dynamics. The altered network activity appeared to manifest across stimuli and brain states and was associated with aberrant local field potential (LFP) activities and increased aggression. The results demonstrate that adult BDNF/trkB signaling is essential to PV inhibition and prefrontal circuit function and directly links BDNF/trkB signaling to network integrity in the adult brain.
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Affiliation(s)
- Nicolas Guyon
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden
| | - Leonardo Rakauskas Zacharias
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil
| | | | - Jana Immenschuh
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden
| | - Janos Fuzik
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden
| | - Antje Märtin
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden
| | - Yang Xuan
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden
| | - Misha Zilberter
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden
| | - Hoseok Kim
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden
| | | | - Cleiton Lopes-Aguiar
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Marie Carlén
- Department of Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge 14183, Sweden
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18
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Schlesiger MI, Ruff T, MacLaren DAA, Barriuso-Ortega I, Saidov KM, Yen TY, Monyer H. Two septal-entorhinal GABAergic projections differentially control coding properties of spatially tuned neurons in the medial entorhinal cortex. Cell Rep 2021; 34:108801. [PMID: 33657367 DOI: 10.1016/j.celrep.2021.108801] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 12/23/2020] [Accepted: 02/05/2021] [Indexed: 12/20/2022] Open
Abstract
Septal parvalbumin-expressing (PV+) and calbindin-expressing (CB+) projections inhibit low-threshold and fast-spiking interneurons, respectively, in the medial entorhinal cortex (MEC). We investigate how the two inputs control neuronal activity in the MEC in freely moving mice. Stimulation of PV+ and CB+ terminals causes disinhibition of spatially tuned MEC neurons, but exerts differential effects on temporal coding and burst firing. Thus, recruitment of PV+ projections disrupts theta-rhythmic firing of MEC neurons, while stimulation of CB+ projections increases burst firing of grid cells and enhances phase precession in a cell-type-specific manner. Inactivation of septal PV+ or CB+ neurons differentially affects context, reference, and working memory. Together, our results reveal how specific connectivity of septal GABAergic projections with MEC interneurons translates into differential modulation of MEC neuronal coding.
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Affiliation(s)
- Magdalene Isabell Schlesiger
- Department of Clinical Neurobiology at the Medical Faculty of Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Tobias Ruff
- Department of Clinical Neurobiology at the Medical Faculty of Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Duncan Archibald Allan MacLaren
- Department of Clinical Neurobiology at the Medical Faculty of Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Isabel Barriuso-Ortega
- Department of Clinical Neurobiology at the Medical Faculty of Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Khalid Magomedovich Saidov
- Department of Clinical Neurobiology at the Medical Faculty of Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Ting-Yun Yen
- Department of Clinical Neurobiology at the Medical Faculty of Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Hannah Monyer
- Department of Clinical Neurobiology at the Medical Faculty of Heidelberg University and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.
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19
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Duarte Azevedo M, Sander S, Jeanneret C, Olfat S, Tenenbaum L. Selective targeting of striatal parvalbumin-expressing interneurons for transgene delivery. J Neurosci Methods 2021; 354:109105. [PMID: 33652020 DOI: 10.1016/j.jneumeth.2021.109105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 01/17/2023]
Abstract
PVCre mice--> combined with AAV-FLEX vectors allowed efficient and specific targeting of PV+ interneurons in the striatum. However, diffusion of viral particles to the globus pallidus caused massive transduction of PV+ projection neurons and subsequent anterograde transport of the transgene product to the subthalamic nucleus and the substantia nigra pars reticulata. Different AAV serotypes (1 and 9) and promoters (CBA and human synapsin) were evaluated. The combination of AAV1, a moderate expression level (human synapsin promoter) and a precise adjustment of the stereotaxic coordinates in the anterior and dorsolateral part of the striatum were necessary to avoid transduction of PV+ GP projection neurons. Even in the absence of direct transduction due to diffusion of viral particles, GP PV+ projection neurons could be retrogradely transduced via their terminals present in the dorsal striatum. However, in the absence of diffusion, GP-Str PV+ projection neurons were poorly or not transduced suggesting that retrograde transduction did not significantly impair the selective targeting of striatal PV+ neurons. Finally, a prominent reduction of the number of striatal PV+ interneurons (about 50 %) was evidenced in the presence of the Cre recombinase suggesting that functional effects of AAV-mediated transgene expression in PV+ striatal interneurons in PVCre mice should be analyzed with caution.
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Affiliation(s)
- Marcelo Duarte Azevedo
- Laboratory of Cellular and Molecular Neurotherapies, Center for Neuroscience Research, Clinical Neurosciences Department, Lausanne University Hospital, Switzerland
| | - Sibilla Sander
- Laboratory of Cellular and Molecular Neurotherapies, Center for Neuroscience Research, Clinical Neurosciences Department, Lausanne University Hospital, Switzerland
| | - Cheryl Jeanneret
- Laboratory of Cellular and Molecular Neurotherapies, Center for Neuroscience Research, Clinical Neurosciences Department, Lausanne University Hospital, Switzerland
| | - Soophie Olfat
- Laboratory of Cellular and Molecular Neurotherapies, Center for Neuroscience Research, Clinical Neurosciences Department, Lausanne University Hospital, Switzerland
| | - Liliane Tenenbaum
- Laboratory of Cellular and Molecular Neurotherapies, Center for Neuroscience Research, Clinical Neurosciences Department, Lausanne University Hospital, Switzerland.
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20
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Pamukcu A, Cui Q, Xenias HS, Berceau BL, Augustine EC, Fan I, Chalasani S, Hantman AW, Lerner TN, Boca SM, Chan CS. Parvalbumin + and Npas1 + Pallidal Neurons Have Distinct Circuit Topology and Function. J Neurosci 2020; 40:7855-7876. [PMID: 32868462 PMCID: PMC7548687 DOI: 10.1523/jneurosci.0361-20.2020] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 06/23/2020] [Accepted: 07/31/2020] [Indexed: 12/19/2022] Open
Abstract
The external globus pallidus (GPe) is a critical node within the basal ganglia circuit. Phasic changes in the activity of GPe neurons during movement and their alterations in Parkinson's disease (PD) argue that the GPe is important in motor control. Parvalbumin-positive (PV+) neurons and Npas1+ neurons are the two principal neuron classes in the GPe. The distinct electrophysiological properties and axonal projection patterns argue that these two neuron classes serve different roles in regulating motor output. However, the causal relationship between GPe neuron classes and movement remains to be established. Here, by using optogenetic approaches in mice (both males and females), we showed that PV+ neurons and Npas1+ neurons promoted and suppressed locomotion, respectively. Moreover, PV+ neurons and Npas1+ neurons are under different synaptic influences from the subthalamic nucleus (STN). Additionally, we found a selective weakening of STN inputs to PV+ neurons in the chronic 6-hydroxydopamine lesion model of PD. This finding reinforces the idea that the reciprocally connected GPe-STN network plays a key role in disease symptomatology and thus provides the basis for future circuit-based therapies.SIGNIFICANCE STATEMENT The external pallidum is a key, yet an understudied component of the basal ganglia. Neural activity in the pallidum goes awry in neurologic diseases, such as Parkinson's disease. While this strongly argues that the pallidum plays a critical role in motor control, it has been difficult to establish the causal relationship between pallidal activity and motor function/dysfunction. This was in part because of the cellular complexity of the pallidum. Here, we showed that the two principal neuron types in the pallidum have opposing roles in motor control. In addition, we described the differences in their synaptic influence. Importantly, our research provides new insights into the cellular and circuit mechanisms that explain the hypokinetic features of Parkinson's disease.
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Affiliation(s)
- Arin Pamukcu
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
| | - Qiaoling Cui
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
| | - Harry S Xenias
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
| | - Brianna L Berceau
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
| | - Elizabeth C Augustine
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
| | - Isabel Fan
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
| | - Saivasudha Chalasani
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
| | - Adam W Hantman
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, Virginia 20147
| | - Talia N Lerner
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
| | - Simina M Boca
- Innovation Center for Biomedical Informatics, Georgetown University Medical Center, Washington, DC 20007
| | - C Savio Chan
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611
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21
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Abstract
Brain plasticity is dynamically regulated across the life span, peaking during windows of early life. Typically assessed in the physiological range of milliseconds (real time), these trajectories are also influenced on the longer timescales of developmental time (nurture) and evolutionary time (nature), which shape neural architectures that support plasticity. Properly sequenced critical periods of circuit refinement build up complex cognitive functions, such as language, from more primary modalities. Here, we consider recent progress in the biological basis of critical periods as a unifying rubric for understanding plasticity across multiple timescales. Notably, the maturation of parvalbumin-positive (PV) inhibitory neurons is pivotal. These fast-spiking cells generate gamma oscillations associated with critical period plasticity, are sensitive to circadian gene manipulation, emerge at different rates across brain regions, acquire perineuronal nets with age, and may be influenced by epigenetic factors over generations. These features provide further novel insight into the impact of early adversity and neurodevelopmental risk factors for mental disorders.
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Affiliation(s)
- Rebecca K Reh
- Department of Psychology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Brian G Dias
- Division of Behavioral Neuroscience and Psychiatric Disorders, Yerkes National Primate Research Center, Atlanta, GA 30322
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30329
| | - Charles A Nelson
- Boston Children's Hospital, Harvard Medical School, Boston, MA 02115
- Graduate School of Education, Harvard University, Cambridge, MA 02138
| | - Daniela Kaufer
- Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720
- Department of Integrative Biology, University of California, Berkeley, CA 94720
| | - Janet F Werker
- Department of Psychology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Bryan Kolb
- Department of Neuroscience, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada
| | - Joel D Levine
- Department of Biology, University of Toronto at Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Takao K Hensch
- Boston Children's Hospital, Harvard Medical School, Boston, MA 02115;
- Center for Brain Science, Department of Molecular Cellular Biology, Harvard University, Cambridge, MA 02138
- International Research Center for Neurointelligence, University of Tokyo Institutes for Advanced Study, Tokyo 113-0033, Japan
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22
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Phensy A, Lindquist KL, Lindquist KA, Bairuty D, Gauba E, Guo L, Tian J, Du H, Kroener S. Deletion of the Mitochondrial Matrix Protein CyclophilinD Prevents Parvalbumin Interneuron Dysfunctionand Cognitive Deficits in a Mouse Model of NMDA Hypofunction. J Neurosci 2020; 40:6121-6132. [PMID: 32605939 PMCID: PMC7406283 DOI: 10.1523/jneurosci.0880-20.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/28/2020] [Accepted: 06/22/2020] [Indexed: 12/23/2022] Open
Abstract
Redox dysregulation and oxidative stress are final common pathways in the pathophysiology of a variety of psychiatric disorders, including schizophrenia. Oxidative stress causes dysfunction of GABAergic parvalbumin (PV)-positive interneurons (PVI), which are crucial for the coordination of neuronal synchrony during sensory and cognitive processing. Mitochondria are the main source of reactive oxygen species (ROS) in neurons and they control synaptic activity through their roles in energy production and intracellular calcium homeostasis. We have previously shown that in male mice transient blockade of NMDA receptors (NMDARs) during development [subcutaneous injections of 30 mg/kg ketamine (KET) on postnatal days 7, 9, and 11] results in long-lasting alterations in synaptic transmission and reduced PV expression in the adult prefrontal cortex (PFC), contributing to a behavioral phenotype that mimics multiple symptoms associated with schizophrenia. These changes correlate with oxidative stress and impaired mitochondrial function in both PVI and pyramidal cells. Here, we show that genetic deletion (Ppif-/-) of the mitochondrial matrix protein cyclophilin D (CypD) prevents perinatal KET-induced increases in ROS and the resulting deficits in PVI function, and changes in excitatory and inhibitory synaptic transmission in the PFC. Deletion of CypD also prevented KET-induced behavioral deficits in cognitive flexibility, social interaction, and novel object recognition (NOR). Taken together, these data highlight how mitochondrial activity may play an integral role in modulating PVI-mediated cognitive processes.SIGNIFICANCE STATEMENT Mitochondria are important modulators of oxidative stress and cell function, yet how mitochondrial dysfunction affects cell activity and synaptic transmission in psychiatric illnesses is not well understood. NMDA receptor (NMDAR) blockade with ketamine (KET) during development causes oxidative stress, dysfunction of parvalbumin (PV)-positive interneurons (PVI), and long-lasting physiological and behavioral changes. Here we show that mice deficient for the mitochondrial matrix protein cyclophilin D (CypD) show robust protection from PVI dysfunction following perinatal NMDAR blockade. Mitochondria serve as an essential node for a number of stress-induced signaling pathways and our experiments suggest that failure of mitochondrial redox regulation can contribute to PVI dysfunction.
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Affiliation(s)
- Aarron Phensy
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas 75080
| | - Kathy L Lindquist
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas 75080
| | - Karen A Lindquist
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas 75080
| | - Dania Bairuty
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas 75080
| | - Esha Gauba
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas 75080
| | - Lan Guo
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas 75080
| | - Jing Tian
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas 75080
| | - Heng Du
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, Texas 75080
| | - Sven Kroener
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas 75080
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23
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Anderson KM, Collins MA, Chin R, Ge T, Rosenberg MD, Holmes AJ. Transcriptional and imaging-genetic association of cortical interneurons, brain function, and schizophrenia risk. Nat Commun 2020; 11:2889. [PMID: 32514083 PMCID: PMC7280213 DOI: 10.1038/s41467-020-16710-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 05/19/2020] [Indexed: 12/14/2022] Open
Abstract
Inhibitory interneurons orchestrate information flow across the cortex and are implicated in psychiatric illness. Although interneuron classes have unique functional properties and spatial distributions, the influence of interneuron subtypes on brain function, cortical specialization, and illness risk remains elusive. Here, we demonstrate stereotyped negative correlation of somatostatin and parvalbumin transcripts within human and non-human primates. Cortical distributions of somatostatin and parvalbumin cell gene markers are strongly coupled to regional differences in functional MRI variability. In the general population (n = 9,713), parvalbumin-linked genes account for an enriched proportion of heritable variance in in-vivo functional MRI signal amplitude. Single-marker and polygenic cell deconvolution establish that this relationship is spatially dependent, following the topography of parvalbumin expression in post-mortem brain tissue. Finally, schizophrenia genetic risk is enriched among interneuron-linked genes and predicts cortical signal amplitude in parvalbumin-biased regions. These data indicate that the molecular-genetic basis of brain function is shaped by interneuron-related transcripts and may capture individual differences in schizophrenia risk.
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Affiliation(s)
- Kevin M Anderson
- Department of Psychology, Yale University, New Haven, CT, 06520, USA
| | - Meghan A Collins
- Department of Psychology, Yale University, New Haven, CT, 06520, USA
| | - Rowena Chin
- Department of Psychology, Yale University, New Haven, CT, 06520, USA
| | - Tian Ge
- Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Monica D Rosenberg
- Department of Psychology, Yale University, New Haven, CT, 06520, USA
- Department of Psychology, University of Chicago, Chicago, IL, 60637, USA
| | - Avram J Holmes
- Department of Psychology, Yale University, New Haven, CT, 06520, USA.
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.
- Department of Psychiatry, Yale University, New Haven, CT, 06520, USA.
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24
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Malik R, Pai ELL, Rubin AN, Stafford AM, Angara K, Minasi P, Rubenstein JL, Sohal VS, Vogt D. Tsc1 represses parvalbumin expression and fast-spiking properties in somatostatin lineage cortical interneurons. Nat Commun 2019; 10:4994. [PMID: 31676823 PMCID: PMC6825152 DOI: 10.1038/s41467-019-12962-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Accepted: 10/04/2019] [Indexed: 12/21/2022] Open
Abstract
Medial ganglionic eminence (MGE)-derived somatostatin (SST)+ and parvalbumin (PV)+ cortical interneurons (CINs), have characteristic molecular, anatomical and physiological properties. However, mechanisms regulating their diversity remain poorly understood. Here, we show that conditional loss of the Tuberous Sclerosis Complex (TSC) gene, Tsc1, which inhibits the mammalian target of rapamycin (MTOR), causes a subset of SST+ CINs, to express PV and adopt fast-spiking (FS) properties, characteristic of PV+ CINs. Milder intermediate phenotypes also occur when only one allele of Tsc1 is deleted. Notably, treatment of adult mice with rapamycin, which inhibits MTOR, reverses the phenotypes. These data reveal novel functions of MTOR signaling in regulating PV expression and FS properties, which may contribute to TSC neuropsychiatric symptoms. Moreover, they suggest that CINs can exhibit properties intermediate between those classically associated with PV+ or SST+ CINs, which may be dynamically regulated by the MTOR signaling.
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Affiliation(s)
- Ruchi Malik
- Department of Psychiatry and UCSF Weill Institute for Neurosciences, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
- Center for Integrative Neuroscience, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA
- Sloan-Swartz Center for Theoretical Neurobiology, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA
| | - Emily Ling-Lin Pai
- Department of Psychiatry and UCSF Weill Institute for Neurosciences, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
- Neuroscience Program, UCSF, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA
- Nina Ireland Laboratory of Developmental Neurobiology, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA
| | - Anna N Rubin
- Department of Psychiatry and UCSF Weill Institute for Neurosciences, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
- Nina Ireland Laboratory of Developmental Neurobiology, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA
| | - April M Stafford
- Department of Pediatrics and Human Development, 400 Monroe Ave. NW, Grand Rapids, MI, 49503, USA
| | - Kartik Angara
- Department of Pediatrics and Human Development, 400 Monroe Ave. NW, Grand Rapids, MI, 49503, USA
| | - Petros Minasi
- Department of Psychiatry and UCSF Weill Institute for Neurosciences, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
| | - John L Rubenstein
- Department of Psychiatry and UCSF Weill Institute for Neurosciences, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA
- Neuroscience Program, UCSF, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA
- Nina Ireland Laboratory of Developmental Neurobiology, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA
| | - Vikaas S Sohal
- Department of Psychiatry and UCSF Weill Institute for Neurosciences, 675 Nelson Rising Ln, San Francisco, CA, 94158, USA.
- Center for Integrative Neuroscience, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA.
- Sloan-Swartz Center for Theoretical Neurobiology, University of California San Francisco, 1550 4th St., San Francisco, CA, 94158, USA.
| | - Daniel Vogt
- Department of Pediatrics and Human Development, 400 Monroe Ave. NW, Grand Rapids, MI, 49503, USA.
- Neuroscience Program, Michigan State University, East Lansing, MI, USA.
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25
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Perez SM, Boley A, Lodge DJ. Region specific knockdown of Parvalbumin or Somatostatin produces neuronal and behavioral deficits consistent with those observed in schizophrenia. Transl Psychiatry 2019; 9:264. [PMID: 31636253 PMCID: PMC6803626 DOI: 10.1038/s41398-019-0603-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 07/18/2019] [Accepted: 08/11/2019] [Indexed: 12/20/2022] Open
Abstract
The anterior hippocampus and prefrontal cortex are regions linked to symptoms of schizophrenia. The anterior hippocampus is believed to be a key regulator of the mesolimbic dopamine system and is thought to be the driving force contributing to positive symptoms, while the prefrontal cortex is involved in cognitive flexibility and negative symptoms. Aberrant activity in these regions is associated with decreases in GABAergic markers, indicative of an interneuron dysfunction. Specifically, selective decreases are observed in interneurons that contain parvalbumin (PV) or somatostatin (SST). Here, we used viral knockdown in rodents to recapitulate this finding and examine the region-specific roles of PV and SST on neuronal activity and behaviors associated with positive, negative and cognitive symptoms. We found that PV and SST had differential effects on neuronal activity and behavior when knocked down in the ventral hippocampus (vHipp) or medial prefrontal cortex (mPFC). Specifically, SST or PV knockdown in the vHipp increased pyramidal cell activity of the region and produced downstream effects on dopamine neuron activity in the ventral tegmental area (VTA). In contrast, mPFC knockdown did not affect the activity of VTA dopamine neuron activity; however, it did produce deficits in negative (social interaction) and cognitive (reversal learning) domains. Taken together, decreases in PV and/or SST were sufficient to produce schizophrenia-like deficits that were dependent on the region targeted.
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Affiliation(s)
- Stephanie M Perez
- UT Health San Antonio, Department of Pharmacology, Center for Biomedical Neuroscience, 7703 Floyd Curl Drive, MC 7764, San Antonio, TX, 78229, USA.
| | - Angela Boley
- UT Health San Antonio, Department of Pharmacology, Center for Biomedical Neuroscience, 7703 Floyd Curl Drive, MC 7764, San Antonio, TX, 78229, USA
| | - Daniel J Lodge
- UT Health San Antonio, Department of Pharmacology, Center for Biomedical Neuroscience, 7703 Floyd Curl Drive, MC 7764, San Antonio, TX, 78229, USA
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26
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Griffiths BB, Sahbaie P, Rao A, Arvola O, Xu L, Liang D, Ouyang Y, Clark DJ, Giffard RG, Stary CM. Pre-treatment with microRNA-181a Antagomir Prevents Loss of Parvalbumin Expression and Preserves Novel Object Recognition Following Mild Traumatic Brain Injury. Neuromolecular Med 2019; 21:170-181. [PMID: 30900118 PMCID: PMC7213504 DOI: 10.1007/s12017-019-08532-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 03/12/2019] [Indexed: 01/04/2023]
Abstract
Mild traumatic brain injury (mTBI) can result in permanent impairment in memory and learning and may be a precursor to other neurological sequelae. Clinical treatments to ameliorate the effects of mTBI are lacking. Inhibition of microRNA-181a (miR-181a) is protective in several models of cerebral injury, but its role in mTBI has not been investigated. In the present study, miR-181a-5p antagomir was injected intracerebroventricularly 24 h prior to closed-skull cortical impact in young adult male mice. Paw withdrawal, open field, zero maze, Y maze, object location and novel object recognition tests were performed to assess neurocognitive dysfunction. Brains were assessed immunohistologically for the neuronal marker NeuN, the perineuronal net marker wisteria floribunda lectin (WFA), cFos, and the interneuron marker parvalbumin. Protein quantification was performed with immunoblots for synaptophysin and postsynaptic density 95 (PSD95). Fluorescent in situ hybridization was utilized to localize hippocampal miR-181a expression. MiR-181a antagomir treatment reduced neuronal miR-181a expression after mTBI, restored deficits in novel object recognition and increased hippocampal parvalbumin expression in the dentate gyrus. These changes were associated with decreased dentate gyrus hyperactivity indicated by a relative reduction in PSD95 and cFos expression. These results suggest that miR-181a inhibition may be a therapeutic approach to reduce hippocampal excitotoxicity and prevent cognitive dysfunction following mTBI.
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Affiliation(s)
- Brian B Griffiths
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA.
| | - Peyman Sahbaie
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA
- Department of Anesthesiology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Anand Rao
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA
| | - Oiva Arvola
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA
| | - Lijun Xu
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA
| | - Deyong Liang
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA
- Department of Anesthesiology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Yibing Ouyang
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA
| | - David J Clark
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA
- Department of Anesthesiology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Rona G Giffard
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA
| | - Creed M Stary
- Dept of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305-5117, USA.
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27
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Ribic A, Crair MC, Biederer T. Synapse-Selective Control of Cortical Maturation and Plasticity by Parvalbumin-Autonomous Action of SynCAM 1. Cell Rep 2019; 26:381-393.e6. [PMID: 30625321 PMCID: PMC6345548 DOI: 10.1016/j.celrep.2018.12.069] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 11/05/2018] [Accepted: 12/17/2018] [Indexed: 12/20/2022] Open
Abstract
Cortical plasticity peaks early in life and tapers in adulthood, as exemplified in the primary visual cortex (V1), wherein brief loss of vision in one eye reduces cortical responses to inputs from that eye during the critical period but not in adulthood. The synaptic locus of cortical plasticity and the cell-autonomous synaptic factors determining critical periods remain unclear. We here demonstrate that the immunoglobulin protein Synaptic Cell Adhesion Molecule 1 (SynCAM 1/Cadm1) is regulated by visual experience and limits V1 plasticity. Loss of SynCAM 1 selectively reduces the number of thalamocortical inputs onto parvalbumin (PV+) interneurons, impairing the maturation of feedforward inhibition in V1. SynCAM 1 acts in PV+ interneurons to actively restrict cortical plasticity, and brief PV+-specific knockdown of SynCAM 1 in adult visual cortex restores juvenile-like plasticity. These results identify a synapse-specific, cell-autonomous mechanism for thalamocortical visual circuit maturation and closure of the visual critical period.
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Affiliation(s)
- Adema Ribic
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA 02111, USA.
| | - Michael C Crair
- Department of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Thomas Biederer
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA 02111, USA.
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Abstract
Heart failure is the leading cause of combined morbidity and mortality in the USA with 50% of cases being diastolic heart failure. Diastolic heart failure results from poor myocardial relaxation and inadequate filling of the left ventricular chamber caused in part by calcium-handling dysregulation. In this chapter we describe methods to investigate new approaches of novel human Ca2+ binding protein motifs to restore normal Ca2+ handling function to diseased myocardium. Gene transfer of parvalbumin into adult cardiac myocytes has been studied as a potential therapeutic, specifically as a strategic Ca2+ buffer to correct cardiac mechanical dysfunction in disease. This chapter provides protocols for studying wild-type parvalbumin isoforms and parvalbumins with strategically designed EF-hand motifs in adult cardiac myocytes via acute adenoviral gene transfer. These protocols have been used extensively to optimize parvalbumin function as a potential therapeutic for failing heart muscle.
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Affiliation(s)
- Brian R Thompson
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Houda Cohen
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Addeli Bez Batti Angulski
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Joseph M Metzger
- Department of Integrative Biology and Physiology, University of Minnesota Medical School, Minneapolis, MN, USA.
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Babalian A, Eichenberger S, Bilella A, Girard F, Szabolcsi V, Roccaro D, Alvarez-Bolado G, Xu C, Celio MR. The orbitofrontal cortex projects to the parvafox nucleus of the ventrolateral hypothalamus and to its targets in the ventromedial periaqueductal grey matter. Brain Struct Funct 2018; 224:293-314. [PMID: 30315416 PMCID: PMC6373537 DOI: 10.1007/s00429-018-1771-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 10/05/2018] [Indexed: 12/19/2022]
Abstract
Although connections between the orbitofrontal cortex (OFC)-the seat of high cognitive functions-the lateral hypothalamus and the periaqueductal grey (PAG) have been recognized in the past, the precise targets of the descending fibres have not been identified. In the present study, viral tracer-transport experiments revealed neurons of the lateral (LO) and the ventrolateral (VLO) OFC (homologous to part of Area 13 in primates) to project to a circumscribed region in the ventrolateral hypothalamus, namely, the horizontally oriented, cylindrical parvalbumin- and Foxb1-expressing (parvafox) nucleus. The fine collaterals stem from coarse axons in the internal capsule and form excitatory synapses specifically with neurons of the parvafox nucleus, avoiding the rest of the hypothalamus. In its further caudal course, this contingent of LO/VLO-axons projects collaterals to the Su3- and the PV2 nuclei, which lie ventral to the aqueduct in the (PAG), where the terminals fields overlap those deriving from the parvafox nucleus itself. The targeting of the parvafox nucleus by the LO/VLO-projections, and the overlapping of their terminal fields within the PAG, suggest that the two cerebral sites interact closely. An involvement of this LO/VLO-driven circuit in the somatic manifestation of behavioural events is conceivable.
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Affiliation(s)
- Alexandre Babalian
- Anatomy and Programme in Neuroscience, Faculty of Science and Medicine, University of Fribourg, Rte. A. Gockel 1, 1700, Fribourg, Switzerland
| | - Simone Eichenberger
- Anatomy and Programme in Neuroscience, Faculty of Science and Medicine, University of Fribourg, Rte. A. Gockel 1, 1700, Fribourg, Switzerland
| | - Alessandro Bilella
- Anatomy and Programme in Neuroscience, Faculty of Science and Medicine, University of Fribourg, Rte. A. Gockel 1, 1700, Fribourg, Switzerland
| | - Franck Girard
- Anatomy and Programme in Neuroscience, Faculty of Science and Medicine, University of Fribourg, Rte. A. Gockel 1, 1700, Fribourg, Switzerland
| | - Viktoria Szabolcsi
- Anatomy and Programme in Neuroscience, Faculty of Science and Medicine, University of Fribourg, Rte. A. Gockel 1, 1700, Fribourg, Switzerland
| | - Diana Roccaro
- Anatomy and Programme in Neuroscience, Faculty of Science and Medicine, University of Fribourg, Rte. A. Gockel 1, 1700, Fribourg, Switzerland
| | - Gonzalo Alvarez-Bolado
- Institute of Anatomy and Cell Biology, University of Heidelberg, im Neuenheimer Feld 307, 69120, Heidelberg, Germany
| | - Chun Xu
- Friedrich Miescher Institute, Maulbeerstrasse 66, 4058, Basel, Switzerland
| | - Marco R Celio
- Anatomy and Programme in Neuroscience, Faculty of Science and Medicine, University of Fribourg, Rte. A. Gockel 1, 1700, Fribourg, Switzerland.
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Tooley J, Marconi L, Alipio JB, Matikainen-Ankney B, Georgiou P, Kravitz AV, Creed MC. Glutamatergic Ventral Pallidal Neurons Modulate Activity of the Habenula-Tegmental Circuitry and Constrain Reward Seeking. Biol Psychiatry 2018; 83:1012-1023. [PMID: 29452828 PMCID: PMC5972062 DOI: 10.1016/j.biopsych.2018.01.003] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/02/2018] [Accepted: 01/04/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND The ability to appropriately integrate and respond to rewarding and aversive stimuli is essential for survival. The ventral pallidum (VP) plays a critical role in processing both rewarding and aversive stimuli. However, the VP is a heterogeneous structure, and how VP subpopulations integrate into larger reward networks to ultimately modulate these behaviors is not known. We identify a noncanonical population of glutamatergic VP neurons that play a unique role in responding to aversive stimuli and constraining inappropriate reward seeking. METHODS Using neurochemical, genetic, and electrophysiological approaches, we characterized glutamatergic VP neurons (n = 4-8 mice/group). We performed patch clamp and in vivo electrophysiology recordings in the lateral habenula, rostromedial tegmental nucleus, and ventral tegmental area to determine the effect of glutamatergic VP neuron activation in these target regions (n = 6-10 mice/group). Finally, we selectively optogenetically stimulated glutamatergic VP neurons in a real-time place preference task and ablated these neurons using a virally expressed caspase to determine their necessity for reward seeking. RESULTS Glutamatergic VP neurons exhibit little overlap with cholinergic or gamma-aminobutyric acidergic markers, the canonical VP subtypes, and exhibit distinct membrane properties. Glutamatergic VP neurons innervate and increase firing activity of the lateral habenula, rostromedial tegmental nucleus, and gamma-aminobutyric acidergic ventral tegmental area neurons. While nonselective optogenetic stimulation of the VP induced a robust place preference, selective activation of glutamatergic VP neurons induced a place avoidance. Viral ablation of glutamatergic VP neurons increased reward responding and abolished taste aversion to sucrose. CONCLUSIONS Glutamatergic VP neurons constitute a noncanonical subpopulation of VP neurons. These glutamatergic VP neurons increase activity of the lateral habenula, rostromedial tegmental nucleus, and gamma-aminobutyric acidergic ventral tegmental area neurons and adaptively constrain reward seeking.
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Affiliation(s)
- Jessica Tooley
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Lauren Marconi
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Jason Bondoc Alipio
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Bridget Matikainen-Ankney
- Eating and Addiction Section, National Institute of Digestive and Diabetes and Kidney Diseases, Bethesda, Maryland
| | - Polymnia Georgiou
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland
| | - Alexxai V Kravitz
- Eating and Addiction Section, National Institute of Digestive and Diabetes and Kidney Diseases, Bethesda, Maryland
| | - Meaghan C Creed
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, Maryland.
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Vascak M, Jin X, Jacobs KM, Povlishock JT. Mild Traumatic Brain Injury Induces Structural and Functional Disconnection of Local Neocortical Inhibitory Networks via Parvalbumin Interneuron Diffuse Axonal Injury. Cereb Cortex 2018; 28:1625-1644. [PMID: 28334184 PMCID: PMC5907353 DOI: 10.1093/cercor/bhx058] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 01/20/2017] [Indexed: 12/18/2022] Open
Abstract
Diffuse axonal injury (DAI) plays a major role in cortical network dysfunction posited to cause excitatory/inhibitory imbalance after mild traumatic brain injury (mTBI). Current thought holds that white matter (WM) is uniquely vulnerable to DAI. However, clinically diagnosed mTBI is not always associated with WM DAI. This suggests an undetected neocortical pathophysiology, implicating GABAergic interneurons. To evaluate this possibility, we used mild central fluid percussion injury to generate DAI in mice with Cre-driven tdTomato labeling of parvalbumin (PV) interneurons. We followed tdTomato+ profiles using confocal and electron microscopy, together with patch-clamp analysis to probe for DAI-mediated neocortical GABAergic interneuron disruption. Within 3 h post-mTBI tdTomato+ perisomatic axonal injury (PSAI) was found across somatosensory layers 2-6. The DAI marker amyloid precursor protein colocalized with GAD67 immunoreactivity within tdTomato+ PSAI, representing the majority of GABAergic interneuron DAI. At 24 h post-mTBI, we used phospho-c-Jun, a surrogate DAI marker, for retrograde assessments of sustaining somas. Via this approach, we estimated DAI occurs in ~9% of total tdTomato+ interneurons, representing ~14% of pan-neuronal DAI. Patch-clamp recordings of tdTomato+ interneurons revealed decreased inhibitory transmission. Overall, these data show that PV interneuron DAI is a consistent and significant feature of experimental mTBI with important implications for cortical network dysfunction.
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Affiliation(s)
- Michal Vascak
- Department of Anatomy and Neurobiology, Virginia Commonwealth University Medical Center, PO Box 980709, Richmond, VA 23298-0709, USA
| | - Xiaotao Jin
- Department of Anatomy and Neurobiology, Virginia Commonwealth University Medical Center, PO Box 980709, Richmond, VA 23298-0709, USA
| | - Kimberle M Jacobs
- Department of Anatomy and Neurobiology, Virginia Commonwealth University Medical Center, PO Box 980709, Richmond, VA 23298-0709, USA
| | - John T Povlishock
- Department of Anatomy and Neurobiology, Virginia Commonwealth University Medical Center, PO Box 980709, Richmond, VA 23298-0709, USA
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Audette NJ, Urban-Ciecko J, Matsushita M, Barth AL. POm Thalamocortical Input Drives Layer-Specific Microcircuits in Somatosensory Cortex. Cereb Cortex 2018; 28:1312-1328. [PMID: 28334225 PMCID: PMC6093433 DOI: 10.1093/cercor/bhx044] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 02/03/2017] [Indexed: 12/11/2022] Open
Abstract
Higher-order thalamic nuclei, such as the posterior medial nucleus (POm) in the somatosensory system or the pulvinar in the visual system, densely innervate the cortex and can influence perception and plasticity. To systematically evaluate how higher-order thalamic nuclei can drive cortical circuits, we investigated cell-type selective responses to POm stimulation in mouse primary somatosensory (barrel) cortex, using genetically targeted whole-cell recordings in acute brain slices. We find that ChR2-evoked thalamic input selectively targets specific cell types in the neocortex, revealing layer-specific modules for the summation and processing of POm input. Evoked activity in pyramidal neurons from deep layers is fast and synchronized by rapid feedforward inhibition from GABAergic parvalbumin-expressing neurons, and activity in superficial layers is weaker and prolonged, facilitated by slow inhibition from GABAergic neurons expressing the 5HT3a receptor. Somatostatin-expressing GABAergic neurons do not receive direct input in either layer and their spontaneous activity is suppressed during POm stimulation. This novel pattern of weak, delayed, thalamus-evoked inhibition in layer 2 suggests a longer integration window for incoming sensory information and may facilitate stimulus detection and plasticity in superficial pyramidal neurons.
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Affiliation(s)
- Nicholas J Audette
- Department of Biological Sciences and Center for the Neural Basis of Cognition, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA, USA
| | - Joanna Urban-Ciecko
- Department of Biological Sciences and Center for the Neural Basis of Cognition, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA, USA
| | - Megumi Matsushita
- Department of Biological Sciences and Center for the Neural Basis of Cognition, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA, USA
| | - Alison L Barth
- Department of Biological Sciences and Center for the Neural Basis of Cognition, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA, USA
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Filice F, Lauber E, Vörckel KJ, Wöhr M, Schwaller B. 17-β estradiol increases parvalbumin levels in Pvalb heterozygous mice and attenuates behavioral phenotypes with relevance to autism core symptoms. Mol Autism 2018; 9:15. [PMID: 29507711 PMCID: PMC5833085 DOI: 10.1186/s13229-018-0199-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/14/2018] [Indexed: 01/10/2023] Open
Abstract
Background Autism spectrum disorder (ASD) is a group of neurodevelopmental disorders characterized by two core symptoms: impaired social interaction and communication, and restricted, repetitive behaviors and interests. The pathophysiology of ASD is not yet fully understood, due to a plethora of genetic and environmental risk factors that might be associated with or causal for ASD. Recent findings suggest that one putative convergent pathway for some forms of ASD might be the downregulation of the calcium-binding protein parvalbumin (PV). PV-deficient mice (PV-/-, PV+/-), as well as Shank1-/-, Shank3-/-, and VPA mice, which show behavioral deficits relevant to all human ASD core symptoms, are all characterized by lower PV expression levels. Methods Based on the hypothesis that PV expression might be increased by 17-β estradiol (E2), PV+/- mice were treated with E2 from postnatal days 5-15 and ASD-related behavior was tested between postnatal days 25 and 31. Results PV expression levels were significantly increased after E2 treatment and, concomitantly, sociability deficits in PV+/- mice in the direct reciprocal social interaction and the 3-chamber social approach assay, as well as repetitive behaviors, were attenuated. E2 treatment of PV+/+ mice did not increase PV levels and had detrimental effects on sociability and repetitive behavior. In PV-/- mice, E2 obviously did not affect PV levels; tested behaviors were not different from the ones in vehicle-treated PV-/- mice. Conclusion Our results suggest that the E2-linked amelioration of ASD-like behaviors is specifically occurring in PV+/- mice, indicating that PV upregulation is required for the E2-mediated rescue of ASD-relevant behavioral impairments.
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Affiliation(s)
- Federica Filice
- Anatomy Unit, Section of Medicine, University of Fribourg, Route Albert-Gockel 1, CH-1700 Fribourg, Switzerland
| | - Emanuel Lauber
- Anatomy Unit, Section of Medicine, University of Fribourg, Route Albert-Gockel 1, CH-1700 Fribourg, Switzerland
| | - Karl Jakob Vörckel
- Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032 Marburg, Germany
| | - Markus Wöhr
- Behavioral Neuroscience, Faculty of Psychology, Philipps-University of Marburg, Gutenbergstraße 18, 35032 Marburg, Germany
- Marburg Center for Mind, Brain, and Behavior (MCMBB), Hans-Meerwein-Straße 6, 35032 Marburg, Germany
| | - Beat Schwaller
- Anatomy Unit, Section of Medicine, University of Fribourg, Route Albert-Gockel 1, CH-1700 Fribourg, Switzerland
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Abstract
Cortical sensory maps are remodeled during early life to adapt to the surrounding environment. Both sensory and contextual signals are important for induction of this plasticity, but how these signals converge to sculpt developing thalamocortical circuits remains largely unknown. Here we show that layer 1 (L1) of primary auditory cortex (A1) is a key hub where neuromodulatory and topographically organized thalamic inputs meet to tune the cortical layers below. Inhibitory interneurons in L1 send narrowly descending projections to differentially modulate thalamic drive to pyramidal and parvalbumin-expressing (PV) cells in L4, creating brief windows of intracolumnar activation. Silencing of L1 (but not VIP-expressing) cells abolishes map plasticity during the tonotopic critical period. Developmental transitions in nicotinic acetylcholine receptor (nAChR) sensitivity in these cells caused by Lynx1 protein can be overridden to extend critical-period closure. Notably, thalamocortical maps in L1 are themselves stable, and serve as a scaffold for cortical plasticity throughout life.
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Affiliation(s)
- Anne E Takesian
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA
- Center for Brain Science, Department of Molecular & Cellular Biology, Harvard University, Cambridge, MA, USA
| | - Luke J Bogart
- Center for Brain Science, Department of Molecular & Cellular Biology, Harvard University, Cambridge, MA, USA
| | - Jeff W Lichtman
- Center for Brain Science, Department of Molecular & Cellular Biology, Harvard University, Cambridge, MA, USA
| | - Takao K Hensch
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA.
- Center for Brain Science, Department of Molecular & Cellular Biology, Harvard University, Cambridge, MA, USA.
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Tischfield DJ, Kim J, Anderson SA. Atypical PKC and Notch Inhibition Differentially Modulate Cortical Interneuron Subclass Fate from Embryonic Stem Cells. Stem Cell Reports 2017; 8:1135-1143. [PMID: 28416285 PMCID: PMC5829278 DOI: 10.1016/j.stemcr.2017.03.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 03/12/2017] [Accepted: 03/13/2017] [Indexed: 11/21/2022] Open
Abstract
Recent studies indicate that the location of neurogenesis within the medial ganglionic eminence (MGE) critically influences the fate determination of cortical interneuron subgroups, with parvalbumin (Pv) interneurons originating from subventricular zone divisions and somatostatin (Sst) interneurons primarily arising from apical divisions. The aPKC-CBP and Notch signaling pathways regulate the transition from apical to basal progenitor and their differentiation into post-mitotic neurons. We find that aPKC inhibition enhances intermediate neurogenesis from stem cell-derived MGE progenitors, resulting in a markedly increased ratio of Pv- to Sst-expressing interneurons. Conversely, inhibition of Notch signaling enriches for Sst subtypes at the expense of Pv fates. These findings confirm that the mode of neurogenesis influences the fate of MGE-derived interneurons and provide a means of further enrichment for the generation of specific interneuron subgroups from pluripotent stem cells.
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Affiliation(s)
- David J Tischfield
- Neuroscience Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104-6085, USA; Department of Psychiatry, Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine ARC 517, Philadelphia, PA 19104-5127, USA
| | - Junho Kim
- Department of Psychiatry, Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine ARC 517, Philadelphia, PA 19104-5127, USA
| | - Stewart A Anderson
- Neuroscience Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104-6085, USA; Department of Psychiatry, Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine ARC 517, Philadelphia, PA 19104-5127, USA.
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Calakos KC, Blackman D, Schulz AM, Bauer EP. Distribution of type I corticotropin-releasing factor (CRF1) receptors on GABAergic neurons within the basolateral amygdala. Synapse 2017; 71:10.1002/syn.21953. [PMID: 27997737 PMCID: PMC7876706 DOI: 10.1002/syn.21953] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 11/21/2016] [Accepted: 12/02/2016] [Indexed: 12/23/2022]
Abstract
The neuropeptide corticotropin-releasing factor (CRF) plays a critical role in mediating anxiety-like responses to stressors, and dysfunction of the CRF system has been linked to the etiology of several psychiatric disorders. Extra-hypothalamic CRF can also modulate learning and memory formation, including amygdala-dependent learning. The basolateral nucleus of the amygdala (BLA) contains dense concentrations of CRF receptors, yet the distribution of these receptors on specific neuronal subtypes within the BLA has not been characterized. Here, we quantified the expression of CRF receptors on three nonoverlapping classes of GABAergic interneurons: those containing the calcium-binding protein parvalbumin (PV), and those expressing the neuropeptides somatostatin (SOM) or cholecystokinin (CCK). While the majority of PV+ neurons and roughly half of CCK+ neurons expressed CRF receptors, they were expressed to a much lesser extent on SOM+ interneurons. Knowledge of the distribution of CRF receptors within the BLA can provide insight into how manipulations of the CRF system modulate fear and anxiety-like behaviors.
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Affiliation(s)
- Katina C Calakos
- Barnard College Columbia University, 3009 Broadway, New York, New York, 10027
| | - Dakota Blackman
- Barnard College Columbia University, 3009 Broadway, New York, New York, 10027
| | - Alexandra M Schulz
- Barnard College Columbia University, 3009 Broadway, New York, New York, 10027
| | - Elizabeth P Bauer
- Barnard College Columbia University, 3009 Broadway, New York, New York, 10027
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Belekhova MG, Kenigfest NB, Chernigovskaya EV, Veselkin NP. Selective specificity of calcium-binding proteins calbindin and calretinin expression in the magnocellular neurosecretory hypothalamic nuclei of tortoises and turtles. Dokl Biol Sci 2017; 473:80-83. [PMID: 28508199 DOI: 10.1134/s0012496617020016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Indexed: 06/07/2023]
Abstract
We have studied the distribution of calcium-binding proteins in the magnocellular neurosecretory nuclei of nonapeptidergic neurosecretory nuclei of the preoptic-hypothalamic complex in a tortoise (Testudo horsfieldi) and a pond turtle (Emys orbicularis) using immunohistochemistry. We have found that different types of cells in the paraventricular and supraoptic nuclei predominantly express calbindin and, to a lesser extent, calretinin, but not parvalbumin. The selective calbindin/calretinin control of the neurohormone secretion in these hypothalamic nuclei is an evolutionary conservative feature typical of reptiles and mammals.
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Affiliation(s)
- M G Belekhova
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia.
| | - N B Kenigfest
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
- National Museum of Natural History, Paris, France
| | - E V Chernigovskaya
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - N P Veselkin
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia
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Bode C, Richter F, Spröte C, Brigadski T, Bauer A, Fietz S, Fritschy JM, Richter A. Altered postnatal maturation of striatal GABAergic interneurons in a phenotypic animal model of dystonia. Exp Neurol 2017; 287:44-53. [PMID: 27780732 DOI: 10.1016/j.expneurol.2016.10.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 09/30/2016] [Accepted: 10/21/2016] [Indexed: 01/05/2023]
Abstract
GABAergic disinhibition has been suggested to play a critical role in the pathophysiology of several basal ganglia disorders, including dystonia, a common movement disorder. Previous studies have shown a deficit of striatal GABAergic interneurons (IN) in the dtsz mutant hamster, one of the few phenotypic animal models of dystonia. However, mechanisms underlying this deficit are largely unknown. In the present study, we investigated the migration and maturation of striatal IN during postnatal development (18days of age) and at age of highest severity of dystonia (33days of age) in this hamster model. In line with previous findings, the density of GAD67-positive IN and the level of parvalbumin mRNA, a marker for fast spiking GABAergic IN, were lower in the dtsz mutant than in control hamsters. However, an unaltered density of Nkx2.1 labeled cells and Nkx2.1 mRNA level suggested that the migration of GABAergic IN into the striatum was not retarded. Therefore, different factors that indicate maturation of GABAergic IN were determined. While mRNA of the KCC2 cation/chloride transporters and the cytosolic carboanhydrase VII, used as markers for the so called GABA switch, as well as BDNF were unaltered, we found a reduced number of IN expressing the alpha1 subunit of the GABAA-receptor (37.5%) in dtsz hamsters at an age of 33days, but not after spontaneous remission of dystonia at an age of 90days. Since IN shift expression from alpha2 to alpha1 subunits during postnatal maturation, this result together with a decreased parvalbumin mRNA expression suggest a delayed maturation of striatal GABAergic IN in this animal model, which might underlie abnormal neuronal activity and striatal plasticity.
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Affiliation(s)
- Christoph Bode
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Franziska Richter
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, University of Leipzig, 04103 Leipzig, Germany.
| | - Christine Spröte
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Tanja Brigadski
- Institute for Physiology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany; Center of Behavioral Brain Sciences (CBBS), 39120 Magdeburg, Germany
| | - Anne Bauer
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Simone Fietz
- Institute of Veterinary Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Jean-Marc Fritschy
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich 8057, Switzerland
| | - Angelika Richter
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, University of Leipzig, 04103 Leipzig, Germany.
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Marks WD, Paris JJ, Schier CJ, Denton MD, Fitting S, McQuiston AR, Knapp PE, Hauser KF. HIV-1 Tat causes cognitive deficits and selective loss of parvalbumin, somatostatin, and neuronal nitric oxide synthase expressing hippocampal CA1 interneuron subpopulations. J Neurovirol 2016; 22:747-762. [PMID: 27178324 PMCID: PMC5107352 DOI: 10.1007/s13365-016-0447-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 04/02/2016] [Accepted: 04/10/2016] [Indexed: 02/08/2023]
Abstract
Memory deficits are characteristic of HIV-associated neurocognitive disorders (HAND) and co-occur with hippocampal pathology. The HIV-1 transactivator of transcription (Tat), a regulatory protein, plays a significant role in these events, but the cellular mechanisms involved are poorly understood. Within the hippocampus, diverse populations of interneurons form complex networks; even subtle disruptions can drastically alter synaptic output, resulting in behavioral dysfunction. We hypothesized that HIV-1 Tat would impair cognitive behavior and injure specific hippocampal interneuron subtypes. Male transgenic mice that inducibly expressed HIV-1 Tat (or non-expressing controls) were assessed for cognitive behavior or had hippocampal CA1 subregions evaluated via interneuron subpopulation markers. Tat exposure decreased spatial memory in a Barnes maze and mnemonic performance in a novel object recognition test. Tat reduced the percentage of neurons expressing neuronal nitric oxide synthase (nNOS) without neuropeptide Y immunoreactivity in the stratum pyramidale and the stratum radiatum, parvalbumin in the stratum pyramidale, and somatostatin in the stratum oriens, which are consistent with reductions in interneuron-specific interneuron type 3 (IS3), bistratified, and oriens-lacunosum-moleculare interneurons, respectively. The findings reveal that an interconnected ensemble of CA1 nNOS-expressing interneurons, the IS3 cells, as well as subpopulations of parvalbumin- and somatostatin-expressing interneurons are preferentially vulnerable to HIV-1 Tat. Importantly, the susceptible interneurons form a microcircuit thought to be involved in feedback inhibition of CA1 pyramidal cells and gating of CA1 pyramidal cell inputs. The identification of vulnerable CA1 hippocampal interneurons may provide novel insight into the basic mechanisms underlying key functional and neurobehavioral deficits associated with HAND.
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Affiliation(s)
- William D Marks
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Kontos Medical Sciences Building, 1217 East Marshall Street, Richmond, VA, 23298-0613, USA
| | - Jason J Paris
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Kontos Medical Sciences Building, 1217 East Marshall Street, Richmond, VA, 23298-0613, USA
| | - Christina J Schier
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Kontos Medical Sciences Building, 1217 East Marshall Street, Richmond, VA, 23298-0613, USA
| | - Melissa D Denton
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Kontos Medical Sciences Building, 1217 East Marshall Street, Richmond, VA, 23298-0613, USA
| | - Sylvia Fitting
- Department of Psychology & Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-3270, USA
| | - A Rory McQuiston
- Department of Anatomy & Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, 23298-0709, USA
| | - Pamela E Knapp
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Kontos Medical Sciences Building, 1217 East Marshall Street, Richmond, VA, 23298-0613, USA
- Department of Anatomy & Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, 23298-0709, USA
- Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, VA, 23298-0059, USA
| | - Kurt F Hauser
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Kontos Medical Sciences Building, 1217 East Marshall Street, Richmond, VA, 23298-0613, USA.
- Department of Anatomy & Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, 23298-0709, USA.
- Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, VA, 23298-0059, USA.
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Maor I, Shalev A, Mizrahi A. Distinct Spatiotemporal Response Properties of Excitatory Versus Inhibitory Neurons in the Mouse Auditory Cortex. Cereb Cortex 2016; 26:4242-4252. [PMID: 27600839 PMCID: PMC5066836 DOI: 10.1093/cercor/bhw266] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 07/05/2016] [Accepted: 08/01/2016] [Indexed: 01/31/2023] Open
Abstract
In the auditory system, early neural stations such as brain stem are characterized by strict tonotopy, which is used to deconstruct sounds to their basic frequencies. But higher along the auditory hierarchy, as early as primary auditory cortex (A1), tonotopy starts breaking down at local circuits. Here, we studied the response properties of both excitatory and inhibitory neurons in the auditory cortex of anesthetized mice. We used in vivo two photon-targeted cell-attached recordings from identified parvalbumin-positive neurons (PVNs) and their excitatory pyramidal neighbors (PyrNs). We show that PyrNs are locally heterogeneous as characterized by diverse best frequencies, pairwise signal correlations, and response timing. In marked contrast, neighboring PVNs exhibited homogenous response properties in pairwise signal correlations and temporal responses. The distinct physiological microarchitecture of different cell types is maintained qualitatively in response to natural sounds. Excitatory heterogeneity and inhibitory homogeneity within the same circuit suggest different roles for each population in coding natural stimuli.
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Affiliation(s)
- Ido Maor
- Department of Neurobiology
- The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram Jerusalem 91904, Israel
| | - Amos Shalev
- Department of Neurobiology
- The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram Jerusalem 91904, Israel
| | - Adi Mizrahi
- Department of Neurobiology
- The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram Jerusalem 91904, Israel
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41
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Neske GT, Connors BW. Synchronized gamma-frequency inhibition in neocortex depends on excitatory-inhibitory interactions but not electrical synapses. J Neurophysiol 2016; 116:351-68. [PMID: 27121576 PMCID: PMC4969394 DOI: 10.1152/jn.00071.2016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 04/23/2016] [Indexed: 11/22/2022] Open
Abstract
Synaptic inhibition plays a crucial role in the precise timing of spiking activity in the cerebral cortex. Synchronized, rhythmic inhibitory activity in the gamma (30-80 Hz) range is thought to be especially important for the active, information-processing neocortex, but the circuit mechanisms that give rise to synchronized inhibition are uncertain. In particular, the relative contributions of reciprocal inhibitory connections, excitatory-inhibitory interactions, and electrical synapses to precise spike synchrony among inhibitory interneurons are not well understood. Here we describe experiments on mouse barrel cortex in vitro as it spontaneously generates slow (<1 Hz) oscillations (Up and Down states). During Up states, inhibitory postsynaptic currents (IPSCs) are generated at gamma frequencies and are more synchronized than excitatory postsynaptic currents (EPSCs) among neighboring pyramidal cells. Furthermore, spikes in homotypic pairs of interneurons are more synchronized than in pairs of pyramidal cells. Comparing connexin36 knockout and wild-type animals, we found that electrical synapses make a minimal contribution to synchronized inhibition during Up states. Estimations of the delays between EPSCs and IPSCs in single pyramidal cells showed that excitation often preceded inhibition by a few milliseconds. Finally, tonic optogenetic activation of different interneuron subtypes in the absence of excitation led to only weak synchrony of IPSCs in pairs of pyramidal neurons. Our results suggest that phasic excitatory inputs are indispensable for synchronized spiking in inhibitory interneurons during Up states and that electrical synapses play a minimal role.
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Affiliation(s)
- Garrett T Neske
- Department of Neuroscience, Brown University, Providence, Rhode Island
| | - Barry W Connors
- Department of Neuroscience, Brown University, Providence, Rhode Island
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Kohus Z, Káli S, Rovira‐Esteban L, Schlingloff D, Papp O, Freund TF, Hájos N, Gulyás AI. Properties and dynamics of inhibitory synaptic communication within the CA3 microcircuits of pyramidal cells and interneurons expressing parvalbumin or cholecystokinin. J Physiol 2016; 594:3745-74. [PMID: 27038232 PMCID: PMC4929320 DOI: 10.1113/jp272231] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 03/21/2016] [Indexed: 11/08/2022] Open
Abstract
KEY POINTS To understand how a network operates, its elements must be identified and characterized, and the interactions of the elements need to be studied in detail. In the present study, we describe quantitatively the connectivity of two classes of inhibitory neurons in the hippocampal CA3 area (parvalbumin-positive and cholecystokinin-positive interneurons), a key region for the generation of behaviourally relevant synchronous activity patterns. We describe how interactions among these inhibitory cells and their local excitatory target neurons evolve over the course of physiological and pathological activity patterns. The results of the present study enable the construction of precise neuronal network models that may help us understand how network dynamics is generated and how it can underlie information processing and pathological conditions in the brain. We show how inhibitory dynamics between parvalbumin-positive basket cells and pyramidal cells could contribute to sharp wave-ripple generation. ABSTRACT Different hippocampal activity patterns are determined primarily by the interaction of excitatory cells and different types of interneurons. To understand the mechanisms underlying the generation of different network dynamics, the properties of synaptic transmission need to be uncovered. Perisomatic inhibition is critical for the generation of sharp wave-ripples, gamma oscillations and pathological epileptic activities. Therefore, we aimed to quantitatively and systematically characterize the temporal properties of the synaptic transmission between perisomatic inhibitory neurons and pyramidal cells in the CA3 area of mouse hippocampal slices, using action potential patterns recorded during physiological and pathological network states. Parvalbumin-positive (PV+) and cholecystokinin-positive (CCK+) interneurons showed distinct intrinsic physiological features. Interneurons of the same type formed reciprocally connected subnetworks, whereas the connectivity between interneuron classes was sparse. The characteristics of unitary interactions depended on the identity of both synaptic partners, whereas the short-term plasticity of synaptic transmission depended mainly on the presynaptic cell type. PV+ interneurons showed frequency-dependent depression, whereas more complex dynamics characterized the output of CCK+ interneurons. We quantitatively captured the dynamics of transmission at these different types of connection with simple mathematical models, and describe in detail the response to physiological and pathological discharge patterns. Our data suggest that the temporal propeties of PV+ interneuron transmission may contribute to sharp wave-ripple generation. These findings support the view that intrinsic and synaptic features of PV+ cells make them ideally suited for the generation of physiological network oscillations, whereas CCK+ cells implement a more subtle, graded control in the hippocampus.
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Affiliation(s)
- Z. Kohus
- Institute of Experimental MedicineHungarian Academy of SciencesBudapestHungary
- János Szentágothai, PhD Program of Semmelweis UniversityBudapestHungary
| | - S. Káli
- Institute of Experimental MedicineHungarian Academy of SciencesBudapestHungary
- Péter Pázmány Catholic UniversityFaculty of Information TechnologyBudapestHungary
| | - L. Rovira‐Esteban
- Institute of Experimental MedicineHungarian Academy of SciencesBudapestHungary
| | - D. Schlingloff
- Institute of Experimental MedicineHungarian Academy of SciencesBudapestHungary
- János Szentágothai, PhD Program of Semmelweis UniversityBudapestHungary
| | - O. Papp
- Institute of Experimental MedicineHungarian Academy of SciencesBudapestHungary
| | - T. F. Freund
- Institute of Experimental MedicineHungarian Academy of SciencesBudapestHungary
- Péter Pázmány Catholic UniversityFaculty of Information TechnologyBudapestHungary
| | - N. Hájos
- Institute of Experimental MedicineHungarian Academy of SciencesBudapestHungary
| | - A. I. Gulyás
- Institute of Experimental MedicineHungarian Academy of SciencesBudapestHungary
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Berkowicz SR, Featherby TJ, Qu Z, Giousoh A, Borg NA, Heng JI, Whisstock JC, Bird PI. Brinp1(-/-) mice exhibit autism-like behaviour, altered memory, hyperactivity and increased parvalbumin-positive cortical interneuron density. Mol Autism 2016; 7:22. [PMID: 27042284 PMCID: PMC4818446 DOI: 10.1186/s13229-016-0079-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 02/11/2016] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND BMP/RA-inducible neural-specific protein 1 (Brinp1) is highly conserved in vertebrates, and continuously expressed in the neocortex, hippocampus, olfactory bulb and cerebellum from mid-embryonic development through to adulthood. METHODS Brinp1 knock-out (Brinp1(-/-)) mice were generated by Cre-recombinase-mediated removal of the third exon of Brinp1. Knock-out mice were characterised by behavioural phenotyping, immunohistochemistry and expression analysis of the developing and adult brain. RESULTS Absence of Brinp1 during development results in a behavioural phenotype resembling autism spectrum disorder (ASD), in which knock-out mice show reduced sociability and changes in vocalisation capacity. In addition, Brinp1(-/-) mice exhibit hyper-locomotor activity, have impaired short-term memory, and exhibit poor reproductive success. Brinp1(-/-) mice show increased density of parvalbumin-expressing interneurons in the adult mouse brain. Brinp1(-/-) mice do not show signs of altered neural precursor proliferation or increased apoptosis during late embryonic brain development. The expression of the related neuronal migration genes Astn1 and Astn2 is increased in the brains of Brinp1(-/-) mice, suggesting that they may ameliorate the effects of Brinp1 loss. CONCLUSIONS Brinp1 plays an important role in normal brain development and function by influencing neuronal distribution within the cortex. The increased cortical PV-positive interneuron density and altered behaviour of Brinp1(-/-) mice resemble features of a subset of human neurological disorders; namely autism spectrum disorder (ASD) and the hyperactivity aspect of attention deficit hyperactivity disorder (ADHD).
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Affiliation(s)
- Susan R. Berkowicz
- />Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800 Australia
| | - Travis J. Featherby
- />Florey Institute of Neuroscience and Mental Health, Parkville, VIC 3052 Australia
| | - Zhengdong Qu
- />Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800 Australia
| | - Aminah Giousoh
- />Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800 Australia
| | - Natalie A. Borg
- />Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800 Australia
| | - Julian I. Heng
- />Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800 Australia
| | - James C. Whisstock
- />Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800 Australia
- />Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, VIC 3800 Australia
| | - Phillip I. Bird
- />Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800 Australia
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Saunders A, Huang KW, Sabatini BL. Globus Pallidus Externus Neurons Expressing parvalbumin Interconnect the Subthalamic Nucleus and Striatal Interneurons. PLoS One 2016; 11:e0149798. [PMID: 26905595 PMCID: PMC4764347 DOI: 10.1371/journal.pone.0149798] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 02/04/2016] [Indexed: 01/24/2023] Open
Abstract
The globus pallidus externus (GP) is a nucleus of the basal ganglia (BG), containing GABAergic projection neurons that arborize widely throughout the BG, thalamus and cortex. Ongoing work seeks to map axonal projection patterns from GP cell types, as defined by their electrophysiological and molecular properties. Here we use transgenic mice and recombinant viruses to characterize parvalbumin expressing (PV+) GP neurons within the BG circuit. We confirm that PV+ neurons 1) make up ~40% of the GP neurons 2) exhibit fast-firing spontaneous activity and 3) provide the major axonal arborization to the STN and substantia nigra reticulata/compacta (SNr/c). PV+ neurons also innervate the striatum. Retrograde labeling identifies ~17% of pallidostriatal neurons as PV+, at least a subset of which also innervate the STN and SNr. Optogenetic experiments in acute brain slices demonstrate that the PV+ pallidostriatal axons make potent inhibitory synapses on low threshold spiking (LTS) and fast-spiking interneurons (FS) in the striatum, but rarely on spiny projection neurons (SPNs). Thus PV+ GP neurons are synaptically positioned to directly coordinate activity between BG input nuclei, the striatum and STN, and thalamic-output from the SNr.
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Affiliation(s)
- Arpiar Saunders
- Department of Neurobiology, Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Kee Wui Huang
- Department of Neurobiology, Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Bernardo Luis Sabatini
- Department of Neurobiology, Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
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45
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Katz ML, Viney TJ, Nikolic K. Receptive Field Vectors of Genetically-Identified Retinal Ganglion Cells Reveal Cell-Type-Dependent Visual Functions. PLoS One 2016; 11:e0147738. [PMID: 26845435 PMCID: PMC4742227 DOI: 10.1371/journal.pone.0147738] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 01/07/2016] [Indexed: 11/18/2022] Open
Abstract
Sensory stimuli are encoded by diverse kinds of neurons but the identities of the recorded neurons that are studied are often unknown. We explored in detail the firing patterns of eight previously defined genetically-identified retinal ganglion cell (RGC) types from a single transgenic mouse line. We first introduce a new technique of deriving receptive field vectors (RFVs) which utilises a modified form of mutual information (“Quadratic Mutual Information”). We analysed the firing patterns of RGCs during presentation of short duration (~10 second) complex visual scenes (natural movies). We probed the high dimensional space formed by the visual input for a much smaller dimensional subspace of RFVs that give the most information about the response of each cell. The new technique is very efficient and fast and the derivation of novel types of RFVs formed by the natural scene visual input was possible even with limited numbers of spikes per cell. This approach enabled us to estimate the 'visual memory' of each cell type and the corresponding receptive field area by calculating Mutual Information as a function of the number of frames and radius. Finally, we made predictions of biologically relevant functions based on the RFVs of each cell type. RGC class analysis was complemented with results for the cells’ response to simple visual input in the form of black and white spot stimulation, and their classification on several key physiological metrics. Thus RFVs lead to predictions of biological roles based on limited data and facilitate analysis of sensory-evoked spiking data from defined cell types.
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Affiliation(s)
- Matthew L. Katz
- Centre for Bio-Inspired Technology, Institute of Biomedical Engineering, Department of Electrical and Electronic Engineering, The Bessemer Building, Imperial College London, London SW7 2AZ, United Kingdom
| | - Tim J. Viney
- Neural Circuit Laboratories, Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland
- University of Basel, 4003 Basel, Switzerland
| | - Konstantin Nikolic
- Centre for Bio-Inspired Technology, Institute of Biomedical Engineering, Department of Electrical and Electronic Engineering, The Bessemer Building, Imperial College London, London SW7 2AZ, United Kingdom
- * E-mail:
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46
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Abdullah A, Rehbein H. The differentiation of tuna (family: Scombridae) products through the PCR-based analysis of the cytochrome b gene and parvalbumin introns. J Sci Food Agric 2016; 96:456-464. [PMID: 25639273 DOI: 10.1002/jsfa.7111] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 01/16/2015] [Accepted: 01/26/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND In spite of the many studies performed over the years, there are still problems in the authentication of closely related tuna species, not only for canned fish but also for raw products. With the aim of providing screening methods to identify different tuna species and related scombrids, segments of mitochondrial cytochrome b (cyt b) and nuclear parvalbumin genes were amplified and sequenced or subjected to single-strand conformation polymorphism (SSCP) and restriction fragment length polymorphism (RFLP) analyses. RESULTS The nucleotide diagnostic sites in the cyt b gene of five tuna species from Indonesia were determined in this study and used to construct a phylogenetic tree. In addition, the suitability of the nuclear gene that encodes parvalbumin for the differentiation of tuna species was determined by SSCP and RFLP analyses of an intron segment. RFLP differentiated Thunnus albacares and from T. obesus, and fish species in the Thunnus genus could be distinguished from bullet tuna (Auxis rochei) by SSCP. CONCLUSIONS Parvalbumin-based polymerase chain reaction systems could serve as an additional tool in the detection and identification of tuna and other Scombridae fish species for routine seafood control. This reaction can be performed in addition to the cyt b analysis as previously described.
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Affiliation(s)
- Asadatun Abdullah
- Department of Safety and Quality of Milk and Fish Products, Max Rubner Institute, 22767, Hamburg, Germany
- Department of Aquatic Product Technology, Bogor Agricultural University, Bogor, Indonesia
| | - Hartmut Rehbein
- Department of Safety and Quality of Milk and Fish Products, Max Rubner Institute, 22767, Hamburg, Germany
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47
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Petros TJ, Bultje RS, Ross ME, Fishell G, Anderson SA. Apical versus Basal Neurogenesis Directs Cortical Interneuron Subclass Fate. Cell Rep 2015; 13:1090-1095. [PMID: 26526999 DOI: 10.1016/j.celrep.2015.09.079] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 08/19/2015] [Accepted: 09/25/2015] [Indexed: 11/15/2022] Open
Abstract
Fate determination in the mammalian telencephalon, with its diversity of neuronal subtypes and relevance to neuropsychiatric disease, remains a critical area of study in neuroscience. Most studies investigating this topic focus on the diversity of neural progenitors within spatial and temporal domains along the lateral ventricles. Often overlooked is whether the location of neurogenesis within a fate-restricted domain is associated with, or instructive for, distinct neuronal fates. Here, we use in vivo fate mapping and the manipulation of neurogenic location to demonstrate that apical versus basal neurogenesis influences the fate determination of major subgroups of cortical interneurons derived from the subcortical telencephalon. Somatostatin-expressing interneurons arise mainly from apical divisions along the ventricular surface, whereas parvalbumin-expressing interneurons originate predominantly from basal divisions in the subventricular zone. As manipulations that shift neurogenic location alter interneuron subclass fate, these results add an additional dimension to the spatial-temporal determinants of neuronal fate determination.
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Affiliation(s)
- Timothy J Petros
- Department of Neurology and Neuroscience, Weill Cornell Medical College, New York, NY 10065, USA; NYU Neuroscience Institute, Department of Neuroscience and Physiology, Smilow Research Center, New York University School of Medicine, New York, NY 10016, USA
| | - Ronald S Bultje
- Department of Neurology and Neuroscience, Weill Cornell Medical College, New York, NY 10065, USA
| | - M Elizabeth Ross
- Center for Neurogenetics, Brain and Mind Research Institute, Weill Cornell Medical College, New York, NY 10065, USA
| | - Gord Fishell
- NYU Neuroscience Institute, Department of Neuroscience and Physiology, Smilow Research Center, New York University School of Medicine, New York, NY 10016, USA
| | - Stewart A Anderson
- Department of Neurology and Neuroscience, Weill Cornell Medical College, New York, NY 10065, USA; Department of Psychiatry, Children's Hospital of Philadelphia and UPenn School of Medicine, Philadelphia, PA 19104, USA.
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48
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Scholl B, Pattadkal JJ, Dilly GA, Priebe NJ, Zemelman BV. Local Integration Accounts for Weak Selectivity of Mouse Neocortical Parvalbumin Interneurons. Neuron 2015; 87:424-36. [PMID: 26182423 PMCID: PMC4562012 DOI: 10.1016/j.neuron.2015.06.030] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 05/23/2015] [Accepted: 06/22/2015] [Indexed: 01/19/2023]
Abstract
Dissecting the functional roles of excitatory and inhibitory neurons in cortical circuits is a fundamental goal in neuroscience. Of particular interest are their roles in emergent cortical computations such as binocular integration in primary visual cortex (V1). We measured the binocular response selectivity of genetically defined subpopulations of excitatory and inhibitory neurons. Parvalbumin (PV+) interneurons received strong inputs from both eyes but lacked selectivity for binocular disparity. Because broad selectivity could result from heterogeneous synaptic input from neighboring neurons, we examined how individual PV+ interneuron selectivity compared to that of the local neuronal network, which is primarily composed of excitatory neurons. PV+ neurons showed functional similarity to neighboring neuronal populations over spatial distances resembling measurements of synaptic connectivity. On the other hand, excitatory neurons expressing CaMKIIα displayed no such functional similarity with the neighboring population. Our findings suggest that broad selectivity of PV+ interneurons results from nonspecific integration within local networks. VIDEO ABSTRACT.
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Affiliation(s)
- Benjamin Scholl
- Center for Perceptual Systems, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA; Department of Neuroscience, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA; Department for Functional Architecture and Development of Cerebral Cortex, Max Planck Florida Institute for Neuroscience, Jupiter, FL 33458 USA
| | - Jagruti J Pattadkal
- Center for Perceptual Systems, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA; Department of Neuroscience, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA
| | - Geoffrey A Dilly
- Department of Neuroscience, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA; Center for Learning and Memory, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA
| | - Nicholas J Priebe
- Center for Perceptual Systems, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA; Department of Neuroscience, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA; Center for Learning and Memory, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA.
| | - Boris V Zemelman
- Department of Neuroscience, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA; Center for Learning and Memory, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA; Institute of Cell and Molecular Biology, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA
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49
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Petrus E, Rodriguez G, Patterson R, Connor B, Kanold PO, Lee HK. Vision loss shifts the balance of feedforward and intracortical circuits in opposite directions in mouse primary auditory and visual cortices. J Neurosci 2015; 35:8790-801. [PMID: 26063913 PMCID: PMC4461685 DOI: 10.1523/jneurosci.4975-14.2015] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 04/16/2015] [Accepted: 05/02/2015] [Indexed: 12/15/2022] Open
Abstract
Loss of a sensory modality leads to widespread changes in synaptic function across sensory cortices, which are thought to be the basis for cross-modal adaptation. Previous studies suggest that experience-dependent cross-modal regulation of the spared sensory cortices may be mediated by changes in cortical circuits. Here, we report that loss of vision, in the form of dark exposure (DE) for 1 week, produces laminar-specific changes in excitatory and inhibitory circuits in the primary auditory cortex (A1) of adult mice to promote feedforward (FF) processing and also strengthens intracortical inputs to primary visual cortex (V1). Specifically, DE potentiated FF excitatory synapses from layer 4 (L4) to L2/3 in A1 and recurrent excitatory inputs in A1-L4 in parallel with a reduction in the strength of lateral intracortical excitatory inputs to A1-L2/3. This suggests a shift in processing in favor of FF information at the expense of intracortical processing. Vision loss also strengthened inhibitory synaptic function in L4 and L2/3 of A1, but via laminar specific mechanisms. In A1-L4, DE specifically potentiated the evoked synaptic transmission from parvalbumin-positive inhibitory interneurons to principal neurons without changes in spontaneous miniature IPSCs (mIPSCs). In contrast, DE specifically increased the frequency of mIPSCs in A1-L2/3. In V1, FF excitatory inputs were unaltered by DE, whereas lateral intracortical connections in L2/3 were strengthened, suggesting a shift toward intracortical processing. Our results suggest that loss of vision produces distinct circuit changes in the spared and deprived sensory cortices to shift between FF and intracortical processing to allow adaptation.
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Affiliation(s)
- Emily Petrus
- Solomon H. Snyder Department of Neuroscience, Zanvyl Krieger Mind/Brain Institute, and
| | - Gabriela Rodriguez
- Cell, Molecular, Developmental Biology, and Biophysics Graduate Program, Johns Hopkins University, Baltimore, Maryland 21218, and
| | - Ryan Patterson
- Solomon H. Snyder Department of Neuroscience, Zanvyl Krieger Mind/Brain Institute, and
| | - Blaine Connor
- Cell, Molecular, Developmental Biology, and Biophysics Graduate Program, Johns Hopkins University, Baltimore, Maryland 21218, and
| | - Patrick O Kanold
- Department of Biology, University of Maryland, College Park, Maryland 20742
| | - Hey-Kyoung Lee
- Solomon H. Snyder Department of Neuroscience, Zanvyl Krieger Mind/Brain Institute, and Cell, Molecular, Developmental Biology, and Biophysics Graduate Program, Johns Hopkins University, Baltimore, Maryland 21218, and
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Donato F, Chowdhury A, Lahr M, Caroni P. Early- and late-born parvalbumin basket cell subpopulations exhibiting distinct regulation and roles in learning. Neuron 2015; 85:770-86. [PMID: 25695271 DOI: 10.1016/j.neuron.2015.01.011] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 12/11/2014] [Accepted: 01/14/2015] [Indexed: 11/19/2022]
Abstract
Brain networks can support learning by promoting acquisition of task-relevant information or by adhering to validated rules, but the mechanisms involved are poorly understood. Upon learning, local inhibitory parvalbumin (PV)-expressing Basket cell networks can switch to opposite configurations that either favor or interfere with further learning, but how this opposite plasticity is induced and relates to distinct learning requirements has remained unclear. Here, we show that PV Basket cells consist of hitherto unrecognized subpopulations, with distinct schedules of neurogenesis, input connectivities, output target neurons, and roles in learning. Plasticity of hippocampal early-born PV neurons was recruited in rule consolidation, whereas plasticity of late-born PV neurons was recruited in new information acquisition. This involved regulation of early-born neuron plasticity specifically through excitation, and of late-born neuron plasticity specifically through inhibition. Therefore, opposite learning requirements are implemented by distinct local networks involving PV Basket cell subpopulations specifically regulated through inhibition or excitation.
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Affiliation(s)
- Flavio Donato
- Friedrich Miescher Institut, Maulbeerstrasse 66, 4058 Basel, Switzerland
| | - Ananya Chowdhury
- Friedrich Miescher Institut, Maulbeerstrasse 66, 4058 Basel, Switzerland
| | - Maria Lahr
- Friedrich Miescher Institut, Maulbeerstrasse 66, 4058 Basel, Switzerland
| | - Pico Caroni
- Friedrich Miescher Institut, Maulbeerstrasse 66, 4058 Basel, Switzerland.
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