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Li SY, Shi WJ, Ma DD, Zhang JG, Lu ZJ, Long XB, Liu X, Huang CS, Ying GG. Effects of New Psychoactive Substance Esketamine on Behaviors and Transcription of Genes in Dopamine and GABA Pathways in Zebrafish Larvae. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 112:51. [PMID: 38556558 DOI: 10.1007/s00128-024-03883-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 03/07/2024] [Indexed: 04/02/2024]
Abstract
Esketamine (ESK) is the S-enantiomer of ketamine racemate (a new psychoactive substance) that can result in illusions, and alter hearing, vision, and proprioception in human and mouse. Up to now, the neurotoxicity caused by ESK at environmental level in fish is still unclear. This work studied the effects of ESK on behaviors and transcriptions of genes in dopamine and GABA pathways in zebrafish larvae at ranging from 12.4 ng L- 1 to 11141.1 ng L- 1 for 7 days post fertilization (dpf). The results showed that ESK at 12.4 ng L- 1 significantly reduced the touch response of the larvae at 48 hpf. ESK at 12.4 ng L- 1 also reduced the time and distance of larvae swimming at the outer zone during light period, which implied that ESK might potentially decrease the anxiety level of larvae. In addition, ESK increased the transcription of th, ddc, drd1a, drd3 and drd4a in dopamine pathway. Similarly, ESK raised the transcription of slc6a1b, slc6a13 and slc12a2 in GABA pathway. This study suggested that ESK could affect the heart rate and behaviors accompanying with transcriptional alterations of genes in DA and GABA pathways at early-staged zebrafish, which resulted in neurotoxicity in zebrafish larvae.
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Affiliation(s)
- Si-Ying Li
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, SCNU Environmental Research Institute, South China Normal University, Guangzhou, 510006, China
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Wen-Jun Shi
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, SCNU Environmental Research Institute, South China Normal University, Guangzhou, 510006, China.
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China.
| | - Dong-Dong Ma
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, SCNU Environmental Research Institute, South China Normal University, Guangzhou, 510006, China
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Jin-Ge Zhang
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, SCNU Environmental Research Institute, South China Normal University, Guangzhou, 510006, China
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Zhi-Jie Lu
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, SCNU Environmental Research Institute, South China Normal University, Guangzhou, 510006, China
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Xiao-Bing Long
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, SCNU Environmental Research Institute, South China Normal University, Guangzhou, 510006, China
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Xin Liu
- Anti-Drug Technology Center of Guangdong Province and National Anti-Drug Laboratory Guangdong Regional Center, Guangdong Provincial Key Laboratory of Psychoactive Substances Monitoring and Safety, Guangzhou, 510230, China
| | - Chu-Shu Huang
- Anti-Drug Technology Center of Guangdong Province and National Anti-Drug Laboratory Guangdong Regional Center, Guangdong Provincial Key Laboratory of Psychoactive Substances Monitoring and Safety, Guangzhou, 510230, China
| | - Guang-Guo Ying
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, SCNU Environmental Research Institute, South China Normal University, Guangzhou, 510006, China.
- School of Environment, South China Normal University, University Town, Guangzhou, 510006, China.
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Lara-Vasquez A, Espinosa N, Morales C, Moran C, Billeke P, Gallagher J, Strohl JJ, Huerta PT, Fuentealba P. Dominance hierarchy regulates social behavior during spatial movement. Front Neurosci 2024; 18:1237748. [PMID: 38384483 PMCID: PMC10879816 DOI: 10.3389/fnins.2024.1237748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 01/24/2024] [Indexed: 02/23/2024] Open
Abstract
Rodents establish dominance hierarchy as a social ranking system in which one subject acts as dominant over all the other subordinate individuals. Dominance hierarchy regulates food access and mating opportunities, but little is known about its significance in other social behaviors, for instance during collective navigation for foraging or migration. Here, we implemented a simplified goal-directed spatial task in mice, in which animals navigated individually or collectively with their littermates foraging for food. We compared between conditions and found that the social condition exerts significant influence on individual displacement patterns, even when efficient navigation rules leading to reward had been previously learned. Thus, movement patterns and consequent task performance were strongly dependent on contingent social interactions arising during collective displacement, yet their influence on individual behavior was determined by dominance hierarchy. Dominant animals did not behave as leaders during collective displacement; conversely, they were most sensitive to the social environment adjusting their performance accordingly. Social ranking in turn was associated with specific spontaneous neural activity patterns in the prefrontal cortex and hippocampus, with dominant mice showing higher firing rates, larger ripple oscillations, and stronger neuronal entrainment by ripples than subordinate animals. Moreover, dominant animals selectively increased their cortical spiking activity during collective movement, while subordinate mice did not modify their firing rates, consistent with dominant animals being more sensitive to the social context. These results suggest that dominance hierarchy influences behavioral performance during contingent social interactions, likely supported by the coordinated activity in the hippocampal-prefrontal circuit.
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Affiliation(s)
- Ariel Lara-Vasquez
- Centro Integrativo de Neurociencias y Departamento de Psiquiatría, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nelson Espinosa
- Centro Integrativo de Neurociencias y Departamento de Psiquiatría, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Cristian Morales
- Centro Integrativo de Neurociencias y Departamento de Psiquiatría, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Constanza Moran
- Centro Integrativo de Neurociencias y Departamento de Psiquiatría, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Billeke
- Laboratorio de Neurociencia Social y Neuromodulación, Centro de Investigación en Complejidad Social, Universidad del Desarrollo, Santiago, Chile
| | - Joseph Gallagher
- Laboratory of Immune & Neural Networks, Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Joshua J. Strohl
- Laboratory of Immune & Neural Networks, Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Patricio T. Huerta
- Laboratory of Immune & Neural Networks, Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Pablo Fuentealba
- Centro Integrativo de Neurociencias y Departamento de Psiquiatría, Pontificia Universidad Católica de Chile, Santiago, Chile
- Centro de Investigación en Nanotecnología y Materiales Avanzados – CIEN-UC, Pontificia Universidad Católica de Chile, Santiago, Chile
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Wang X, Zhao Z, Guo J, Mei D, Duan Y, Zhang Y, Gou L. GABA B1 receptor knockdown in prefrontal cortex induces behavioral aberrations associated with autism spectrum disorder in mice. Brain Res Bull 2023; 202:110755. [PMID: 37678443 DOI: 10.1016/j.brainresbull.2023.110755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/09/2023]
Abstract
Autism spectrum disorder (ASD) is a set of heterogeneous neurodevelopmental disorders, characterized by social interaction deficit, stereotyped or repetitive behaviors. Apart from these core symptoms, a great number of individuals with ASD exhibit higher levels of anxiety and memory deficits. Previous studies demonstrate pronounced decrease of γ-aminobutyric acid B1 receptor (GABAB1R) protein level of frontal lobe in both ASD patients and animal models. The aim of the present study was to determine the role of GABAB1R in ASD-related behavioral aberrations. Herein, the protein and mRNA levels of GABAB1R in the prefrontal cortex (PFC) of sodium valproic acid (VPA)-induced mouse ASD model were determined by Western blot and qRT-PCR analysis, respectively. Moreover, the behavioral abnormalities in naive mice with GABAB1R knockdown mediated by recombinant adeno-associated virus (rAAV) were assessed in a comprehensive test battery consisted of social interaction, marble burying, self-grooming, open-field, Y-maze and novel object recognition tests. Furthermore, the action potential changes induced by GABAB1R deficiency were examined in neurons within the PFC of mouse. The results show that the mRNA and protein levels of GABAB1R in the PFC of prenatal VPA-induced mouse ASD model were decreased. Concomitantly, naive mice with GABAB1R knockdown exhibited ASD-like behaviors, such as impaired social interaction and communication, elevated stereotypes, anxiety and memory deficits. Patch-clamp recordings also revealed that GABAB1R knockdown provoked enhanced neuronal excitability by increasing action potential discharge frequencies. Overall, these findings support a notion that GABAB1R deficiency might contribute to ASD-like phenotypes, with the pathogenesis most likely resulting from enhanced neuronal excitability. SUBHEADINGS: GABAB1 Knockdown Induces Behavioral Aberrations with ASD.
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Affiliation(s)
- Xiaona Wang
- Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Henan Children's Neurodevelopment Engineering Research Center, Zhengzhou, China.
| | - Zhengqin Zhao
- Department of Nuclear Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jisheng Guo
- School of Basic Medical Sciences, Yantai Campus of Binzhou Medical University, Yantai City, Shandong, China
| | - Daoqi Mei
- Department of Neurology, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Yongtao Duan
- Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Henan Children's Neurodevelopment Engineering Research Center, Zhengzhou, China
| | - Yaodong Zhang
- Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Henan Children's Neurodevelopment Engineering Research Center, Zhengzhou, China.
| | - Lingshan Gou
- Peninsula Cancer Research Center, Binzhou Medical University, Yantai, Shandong, China.
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Tsuji M, Mukai T, Sato Y, Azuma Y, Yamamoto S, Cayetanot F, Bodineau L, Onoda A, Nagamura-Inoue T, Coq JO. Umbilical cord-derived mesenchymal stromal cell therapy to prevent the development of neurodevelopmental disorders related to low birth weight. Sci Rep 2023; 13:3841. [PMID: 36882440 PMCID: PMC9992354 DOI: 10.1038/s41598-023-30817-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 03/01/2023] [Indexed: 03/09/2023] Open
Abstract
Low birth weight (LBW) increases the risk of neurodevelopmental disorders (NDDs) such as attention-deficit/hyperactive disorder and autism spectrum disorder, as well as cerebral palsy, for which no prophylactic measure exists. Neuroinflammation in fetuses and neonates plays a major pathogenic role in NDDs. Meanwhile, umbilical cord-derived mesenchymal stromal cells (UC-MSCs) exhibit immunomodulatory properties. Therefore, we hypothesized that systemic administration of UC-MSCs in the early postnatal period may attenuate neuroinflammation and thereby prevent the emergence of NDDs. The LBW pups born to dams subjected to mild intrauterine hypoperfusion exhibited a significantly lesser decrease in the monosynaptic response with increased frequency of stimulation to the spinal cord preparation from postnatal day 4 (P4) to P6, suggesting hyperexcitability, which was improved by intravenous administration of human UC-MSCs (1 × 105 cells) on P1. Three-chamber sociability tests at adolescence revealed that only LBW males exhibited disturbed sociability, which tended to be ameliorated by UC-MSC treatment. Other parameters, including those determined via open-field tests, were not significantly improved by UC-MSC treatment. Serum or cerebrospinal fluid levels of pro-inflammatory cytokines were not elevated in the LBW pups, and UC-MSC treatment did not decrease these levels. In conclusion, although UC-MSC treatment prevents hyperexcitability in LBW pups, beneficial effects for NDDs are marginal.
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Affiliation(s)
- Masahiro Tsuji
- Department of Food and Nutrition, Kyoto Women's University, 35 Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto, 605-8501, Japan.
| | - Takeo Mukai
- Department of Cell Processing and Transfusion, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Yoshiaki Sato
- Division of Neonatology, Center for Maternal-Neonatal Care, Nagoya University Hospital, Nagoya, Japan
| | - Yasue Azuma
- Department of Food and Nutrition, Kyoto Women's University, 35 Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto, 605-8501, Japan
| | - Saki Yamamoto
- Department of Food and Nutrition, Kyoto Women's University, 35 Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto, 605-8501, Japan
| | - Florence Cayetanot
- Institut National de la Santé et de la Recherche Médicale (Inserm), UMR_S1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
| | - Laurence Bodineau
- Institut National de la Santé et de la Recherche Médicale (Inserm), UMR_S1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
| | - Atsuto Onoda
- Division of Neonatology, Center for Maternal-Neonatal Care, Nagoya University Hospital, Nagoya, Japan
| | - Tokiko Nagamura-Inoue
- Department of Cell Processing and Transfusion, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Jacques-Olivier Coq
- Centre National de la Recherche Scientifique (CNRS), Institut des Sciences du Mouvement (ISM) UMR7287, Aix Marseille Université, 163 avenue de Luminy, CC 910, 13288, Marseille Cedex 09, France.
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5
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Wang T, Xu J, Xu Y, Xiao J, Bi N, Gu X, Wang HL. Gut microbiota shapes social dominance through modulating HDAC2 in the medial prefrontal cortex. Cell Rep 2022; 38:110478. [PMID: 35263606 DOI: 10.1016/j.celrep.2022.110478] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 12/29/2021] [Accepted: 02/08/2022] [Indexed: 12/17/2022] Open
Abstract
Social dominance is a ubiquitous phenomenon among social animals, including humans. To date, individual attributes leading to dominance (after a contest) remain largely elusive. Here, we report that socially dominant rats can be distinguished from subordinates based on their intestinal microbiota. When dysbiosis is induced, rats are predisposed to a subordinate state, while dysbiotic rats reclaim social dominance following microbiota transplantation. Winning hosts are characterized by core microbes, a majority of which are associated with butyrate production, and the sole colonization of Clostridium butyricum is sufficient to restore dominance. Regarding molecular aspects, a histone deacetylase, HDAC2, is responsive to microbial status and mediates competition outcome; however, this occurs only in a restricted population of cells in the medial prefrontal cortex (mPFC). Furthermore, HDAC2 acts by modulating synaptic activity in mPFC. Together, these findings uncover a link between commensals and host dominance, providing insight into the gut-brain mechanisms underlying dominance determination.
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Affiliation(s)
- Tian Wang
- School of Food and Bioengineering, Hefei University of Technology, Hefei 230009, China
| | - Jinchun Xu
- School of Food and Bioengineering, Hefei University of Technology, Hefei 230009, China
| | - Yi Xu
- School of Food and Bioengineering, Hefei University of Technology, Hefei 230009, China; Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China.
| | - Jie Xiao
- School of Food and Bioengineering, Hefei University of Technology, Hefei 230009, China
| | - Nanxi Bi
- School of Food and Bioengineering, Hefei University of Technology, Hefei 230009, China
| | - Xiaozhen Gu
- School of Food and Bioengineering, Hefei University of Technology, Hefei 230009, China
| | - Hui-Li Wang
- School of Food and Bioengineering, Hefei University of Technology, Hefei 230009, China; Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China.
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6
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Zhang YX, Xing B, Li YC, Yan CX, Gao WJ. NMDA receptor-mediated synaptic transmission in prefrontal neurons underlies social memory retrieval in female mice. Neuropharmacology 2022; 204:108895. [PMID: 34813859 PMCID: PMC8688302 DOI: 10.1016/j.neuropharm.2021.108895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 10/16/2021] [Accepted: 11/18/2021] [Indexed: 11/17/2022]
Abstract
Social memory is the ability to discriminate familiar conspecific from the unknown ones. Prefrontal neurons are essentially required for social memory, but the mechanism associated with this regulation remains unknown. It is also unclear to what extent the neuronal representations of social memory formation and retrieval events overlap in the prefrontal cortex (PFC) and which event drives social memory strength. Here we asked these questions by using a repeated social training paradigm for social recognition in FosTRAP mice. We found that after 4 days' repeated social training, female mice developed stable social memory. Specifically, repeated social training activated more cells that were labeled with tdTomato during memory retrieval compared with the first day of memory encoding. Besides, combining TRAP with c-Fos immunostaining, we found about 30% of the FosTRAPed cells were reactivated during retrieval. Moreover, the number of retrieval-induced but not first-day encoding-induced tdTomato neurons correlates with the social recognition ratio in the prelimbic but not other subregions. The activated cells during the retrieval session also showed increased NMDA receptor-mediated synaptic transmission compared with that in non-labeled pyramidal neurons. Blocking NMDA receptors by MK-801 impaired social memory but not sociability. Therefore, our results reveal that repetitive training elevates mPFC involvement in social memory retrieval via enhancing NMDA receptor-mediated synaptic transmission, thus rendering stable social memory.
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Affiliation(s)
- Yu-Xiang Zhang
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA, 19129, USA,College of Forensic Medicine, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, 710061, China
| | - Bo Xing
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA, 19129, USA
| | - Yan-Chun Li
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA, 19129, USA
| | - Chun-Xia Yan
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, China.
| | - Wen-Jun Gao
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA, 19129, USA.
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7
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Delpire E. Advances in the development of novel compounds targeting cation-chloride cotransporter physiology. Am J Physiol Cell Physiol 2021; 320:C324-C340. [PMID: 33356948 PMCID: PMC8294628 DOI: 10.1152/ajpcell.00566.2020] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 01/05/2023]
Abstract
For about half a century, the pharmacology of electroneutral cation-chloride cotransporters has been dominated by a few drugs that are widely used in clinical medicine. Because these diuretic drugs are so good at what they do, there has been little incentive in expanding their pharmacology. The increasing realization that cation-chloride cotransporters are involved in many other key physiological processes and the knowledge that different tissues express homologous proteins with matching transport functions have rekindled interest in drug discovery. This review summarizes the methods available to assess the function of these transporters and describe the multiple efforts that have made to identify new compounds. We describe multiple screens targeting KCC2 function and one screen designed to find compounds that discriminate between NKCC1 and NKCC2. Two of the KCC2 screens identified new inhibitors that are 3-4 orders of magnitude more potent than furosemide. Additional screens identified compounds that purportedly increase cell surface expression of the cotransporter, as well as several FDA-approved drugs that increase KCC2 transcription and expression. The technical details of each screen biased them toward specific processes in the life cycle of the transporter, making these efforts independent and complementary. In addition, each drug discovery effort contributes to our understanding of the biology of the cotransporters.
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Affiliation(s)
- Eric Delpire
- Department of Anesthesiology, Vanderbilt University School of Medicine, Nashville, Tennessee
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8
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Greene SM, Sanchez YR, Pathapati N, Davis GN, Gould GG. Assessment of autism-relevant behaviors in C57BKS/J leptin receptor deficient mice. Horm Behav 2021; 129:104919. [PMID: 33428921 PMCID: PMC7965341 DOI: 10.1016/j.yhbeh.2020.104919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 10/22/2022]
Abstract
Gestational diabetes mellitus (GDM) was associated with greater autism risk in epidemiological studies. Disrupted leptin signaling may contribute to their coincidence, as it is found in both disorders. Given this we examined leptin receptor (Lepr) deficient (BKS.Cg-Dock7m +/+ Leprdb/J diabetic (db)) heterozygous (db/+) mice for autism-relevant behaviors. BKS db/+ females are lean with normal blood glucose, but they develop GDM while pregnant. We hypothesized BKS db/+ offspring might exhibit physiological and behavior traits consistent with autism. Adolescent body weight, fasting blood glucose, serum corticosterone, social preferences, self-grooming, marble burying, social dominance and cognitive flexibility of BKS db/+ mice was compared to C57BLKS/J (BKS) and C57BL/6J (BL6) mice. Male db/+ weighed more and had higher blood glucose and corticosterone relative to BL6, but not BKS mice. Also, male db/+ lacked social interaction preference, explored arenas less, and buried more marbles than BL6, but not BKS males. Male and female db/+ were more dominant and made more mistakes in water T-mazes locating a sunken platform after its position was reversed than BL6, but not BKS mice. Overall BKS db/+, particularly males, exhibited some autism-like social deficits and restrictive-repetitive behaviors relative to BL6, but BKS strain contributions to BKS db/+ behaviors were evident. Since BKS db/+ and BKS behavioral and physiological phenotypes are already so similar, it will be difficult to use these models in studies designed to detect contributions of fetal GDM exposures to offspring behaviors.
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Affiliation(s)
- Susan M Greene
- Department of Cellular and Integrative Physiology, Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
| | - Yatzil R Sanchez
- School of Nursing, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
| | - Nikhita Pathapati
- Department of Cellular and Integrative Physiology, Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
| | - Gianna N Davis
- Department of Cellular and Integrative Physiology, Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
| | - Georgianna G Gould
- Department of Cellular and Integrative Physiology, Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, United States of America.
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Horigane S, Ozawa Y, Zhang J, Todoroki H, Miao P, Haijima A, Yanagawa Y, Ueda S, Nakamura S, Kakeyama M, Takemoto‐Kimura S. A mouse model of Timothy syndrome exhibits altered social competitive dominance and inhibitory neuron development. FEBS Open Bio 2020; 10:1436-1446. [PMID: 32598571 PMCID: PMC7396430 DOI: 10.1002/2211-5463.12924] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/13/2020] [Accepted: 06/25/2020] [Indexed: 01/17/2023] Open
Abstract
Multiple genetic factors related to autism spectrum disorder (ASD) have been identified, but the biological mechanisms remain obscure. Timothy syndrome (TS), associated with syndromic ASD, is caused by a gain-of-function mutation, G406R, in the pore-forming subunit of L-type Ca2+ channels, Cav 1.2. In this study, a mouse model of TS, TS2-neo, was used to enhance behavioral phenotyping and to identify developmental anomalies in inhibitory neurons. Using the IntelliCage, which enables sequential behavioral tasks without human handling and mouse isolation stress, high social competitive dominance was observed in TS2-neo mice. Furthermore, histological analysis demonstrated inhibitory neuronal abnormalities in the neocortex, including an excess of smaller-sized inhibitory presynaptic terminals in the somatosensory cortex of young adolescent mice and higher numbers of migrating inhibitory neurons from the medial ganglionic eminence during embryonic development. In contrast, no obvious changes in excitatory synaptic terminals were found. These novel neural abnormalities in inhibitory neurons of TS2-neo mice may result in a disturbed excitatory/inhibitory (E/I) balance, a key feature underlying ASD.
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Affiliation(s)
- Shin‐ichiro Horigane
- Department of Neuroscience IResearch Institute of Environmental MedicineNagoya UniversityNagoyaJapan
- Molecular/Cellular NeuroscienceNagoya University Graduate School of MedicineNagoyaJapan
| | - Yukihiro Ozawa
- Department of Neuroscience IResearch Institute of Environmental MedicineNagoya UniversityNagoyaJapan
- Molecular/Cellular NeuroscienceNagoya University Graduate School of MedicineNagoyaJapan
- Department of Pathology and Laboratory MedicineNagoya University HospitalNagoyaJapan
| | - Jun Zhang
- Department of Neuroscience IResearch Institute of Environmental MedicineNagoya UniversityNagoyaJapan
- Molecular/Cellular NeuroscienceNagoya University Graduate School of MedicineNagoyaJapan
| | - Hiroe Todoroki
- Laboratory for Systems Neurosciences and Preventive MedicineFaculty of Human SciencesWaseda UniversityTokorozawaJapan
| | - Pan Miao
- Department of Neuroscience IResearch Institute of Environmental MedicineNagoya UniversityNagoyaJapan
- Molecular/Cellular NeuroscienceNagoya University Graduate School of MedicineNagoyaJapan
| | - Asahi Haijima
- Laboratory for Systems Neurosciences and Preventive MedicineFaculty of Human SciencesWaseda UniversityTokorozawaJapan
- Research Institute for Environmental Medical SciencesWaseda UniversityTokorozawaJapan
| | - Yuchio Yanagawa
- Department of Genetic and Behavioral NeuroscienceGunma University Graduate School of MedicineMaebashiJapan
| | - Shuhei Ueda
- Department of Neuroscience IResearch Institute of Environmental MedicineNagoya UniversityNagoyaJapan
- Molecular/Cellular NeuroscienceNagoya University Graduate School of MedicineNagoyaJapan
| | - Shigeo Nakamura
- Department of Pathology and Laboratory MedicineNagoya University HospitalNagoyaJapan
| | - Masaki Kakeyama
- Laboratory for Systems Neurosciences and Preventive MedicineFaculty of Human SciencesWaseda UniversityTokorozawaJapan
- Research Institute for Environmental Medical SciencesWaseda UniversityTokorozawaJapan
| | - Sayaka Takemoto‐Kimura
- Department of Neuroscience IResearch Institute of Environmental MedicineNagoya UniversityNagoyaJapan
- Molecular/Cellular NeuroscienceNagoya University Graduate School of MedicineNagoyaJapan
- Precursory Research for Embryonic Science and Technology (PRESTO)Japan Science and Technology AgencySaitamaJapan
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10
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Shen Y, Campbell RE, Côté DC, Paquet ME. Challenges for Therapeutic Applications of Opsin-Based Optogenetic Tools in Humans. Front Neural Circuits 2020; 14:41. [PMID: 32760252 PMCID: PMC7373823 DOI: 10.3389/fncir.2020.00041] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/16/2020] [Indexed: 12/29/2022] Open
Abstract
As the technological hurdles are overcome and optogenetic techniques advance to have more control over neurons, therapies based on these approaches will begin to emerge in the clinic. Here, we consider the technical challenges surrounding the transition of this breakthrough technology from an investigative tool to a true therapeutic avenue. The emerging strategies and remaining tasks surrounding genetically encoded molecules which respond to light as well as the vehicles required to deliver them are discussed.The use of optogenetics in humans would represent a completely new paradigm in medicine and would be associated with unprecedented technical considerations. To be applied for stimulation of neurons in humans, an ideal optogenetic tool would need to be non-immunogenic, highly sensitive, and activatable with red light or near-infrared light (to maximize light penetration while minimizing photodamage). To enable sophisticated levels of neuronal control, the combined use of optogenetic actuators and indicators could enable closed-loop all-optical neuromodulation. Such systems would introduce additional challenges related to spectral orthogonality between actuator and indicator, the need for decision making computational algorithms and requirements for large gene cassettes. As in any gene therapy, the therapeutic efficiency of optogenetics will rely on vector delivery and expression in the appropriate cell type. Although viral vectors such as those based on AAVs are showing great potential in human trials, barriers to their general use remain, including immune responses, delivery/transport, and liver clearance. Limitations associated with the gene cassette size which can be packaged in currently approved vectors also need to be addressed.
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Affiliation(s)
- Yi Shen
- Department of Chemistry, University of Alberta, Edmonton, AB, Canada
| | - Robert E Campbell
- Department of Chemistry, University of Alberta, Edmonton, AB, Canada.,Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Daniel C Côté
- Centre de Recherche CERVO, Université Laval, Quebec City, QC, Canada.,Département de Physique et Génie Physique, Université Laval, Quebec City, QC, Canada
| | - Marie-Eve Paquet
- Centre de Recherche CERVO, Université Laval, Quebec City, QC, Canada.,Département de Biochimie, Microbiologie et Bioinformatique, Université Laval, Quebec City, QC, Canada
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