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Lubomirov LT, Schroeter MM, Hasse V, Frohn M, Metzler D, Bust M, Pryymachuk G, Hescheler J, Grisk O, Chalovich JM, Smyth NR, Pfitzer G, Papadopoulos S. Dual thick and thin filament linked regulation of stretch- and L-NAME-induced tone in young and senescent murine basilar artery. Front Physiol 2023; 14:1099278. [PMID: 37057180 PMCID: PMC10088910 DOI: 10.3389/fphys.2023.1099278] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/09/2023] [Indexed: 03/30/2023] Open
Abstract
Stretch-induced vascular tone is an important element of autoregulatory adaptation of cerebral vasculature to maintain cerebral flow constant despite changes in perfusion pressure. Little is known as to the regulation of tone in senescent basilar arteries. We tested the hypothesis, that thin filament mechanisms in addition to smooth muscle myosin-II regulatory-light-chain-(MLC20)-phosphorylation and non-muscle-myosin-II, contribute to regulation of stretch-induced tone. In young BAs (y-BAs) mechanical stretch does not lead to spontaneous tone generation. Stretch-induced tone in y-BAs appeared only after inhibition of NO-release by L-NAME and was fully prevented by treatment with 3 μmol/L RhoA-kinase (ROK) inhibitor Y27632. L-NAME-induced tone was reduced in y-BAs from heterozygous mice carrying a point mutation of the targeting-subunit of the myosin phosphatase, MYPT1 at threonine696 (MYPT1-T696A/+). In y-BAs, MYPT1-T696A-mutation also blunted the ability of L-NAME to increase MLC20-phosphorylation. In contrast, senescent BAs (s-BAs; >24 months) developed stable spontaneous stretch-induced tone and pharmacological inhibition of NO-release by L-NAME led to an additive effect. In s-BAs the MYPT1-T696A mutation also blunted MLC20-phosphorylation, but did not prevent development of stretch-induced tone. In s-BAs from both lines, Y27632 completely abolished stretch- and L-NAME-induced tone. In s-BAs phosphorylation of non-muscle-myosin-S1943 and PAK1-T423, shown to be down-stream effectors of ROK was also reduced by Y27632 treatment. Stretch- and L-NAME tone were inhibited by inhibition of non-muscle myosin (NM-myosin) by blebbistatin. We also tested whether the substrate of PAK1 the thin-filament associated protein, caldesmon is involved in the regulation of stretch-induced tone in advanced age. BAs obtained from heterozygotes Cald1+/− mice generated stretch-induced tone already at an age of 20–21 months old BAs (o-BA). The magnitude of stretch-induced tone in Cald1+/− o-BAs was similar to that in s-BA. In addition, truncation of caldesmon myosin binding Exon2 (CaD-▵Ex2−/−) did not accelerate stretch-induced tone. Our study indicates that in senescent cerebral vessels, mechanisms distinct from MLC20 phosphorylation contribute to regulation of tone in the absence of a contractile agonist. While in y-and o-BA the canonical pathways, i.e., inhibition of MLCP by ROK and increase in pMLC20, predominate, tone regulation in senescence involves ROK regulated mechanisms, involving non-muscle-myosin and thin filament linked mechanisms involving caldesmon.
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Affiliation(s)
- Lubomir T. Lubomirov
- Center of Physiology, Institute of Vegetative Physiology, University of Cologne, Cologne, Germany
- Institute of Physiology, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
- Research Cluster, Molecular Mechanisms of Cardiovascular Diseases, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
- *Correspondence: Lubomir T. Lubomirov,
| | - Mechthild M. Schroeter
- Center of Physiology, Institute of Vegetative Physiology, University of Cologne, Cologne, Germany
- Center of Physiology, Institute of Neurophysiology, University of Cologne, Cologne, Germany
| | - Veronika Hasse
- Center of Physiology, Institute of Vegetative Physiology, University of Cologne, Cologne, Germany
| | - Marina Frohn
- Center of Physiology, Institute of Vegetative Physiology, University of Cologne, Cologne, Germany
| | - Doris Metzler
- Center of Physiology, Institute of Vegetative Physiology, University of Cologne, Cologne, Germany
| | - Maria Bust
- Center of Physiology, Institute of Vegetative Physiology, University of Cologne, Cologne, Germany
| | - Galyna Pryymachuk
- Institute of Anatomy, University of Cologne, Cologne, Germany
- Institute of Anatomy, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
| | - Jürgen Hescheler
- Center of Physiology, Institute of Neurophysiology, University of Cologne, Cologne, Germany
| | - Olaf Grisk
- Institute of Physiology, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
- Research Cluster, Molecular Mechanisms of Cardiovascular Diseases, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
| | - Joseph M. Chalovich
- Department of Biochemistry and Molecular Biology, Brody School of Medicine at East Carolina University, Greenville, NC, United States
| | - Neil R. Smyth
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton, United Kingdom
| | - Gabriele Pfitzer
- Center of Physiology, Institute of Vegetative Physiology, University of Cologne, Cologne, Germany
| | - Symeon Papadopoulos
- Center of Physiology, Institute of Neurophysiology, University of Cologne, Cologne, Germany
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2
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Rodat-Despoix L, Chamlali M, Ouadid-Ahidouch H. Ion channels as key partners of cytoskeleton in cancer disease. Biochim Biophys Acta Rev Cancer 2021; 1876:188627. [PMID: 34520803 DOI: 10.1016/j.bbcan.2021.188627] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 12/14/2022]
Abstract
Several processes occur during tumor development including changes in cell morphology, a reorganization of the expression and distribution of the cytoskeleton proteins as well as ion channels. If cytoskeleton proteins and ion channels have been widely investigated in understanding cancer mechanisms, the interaction between these two elements and the identification of the associated signaling pathways are only beginning to emerge. In this review, we summarize the work published over the past 15 years relating to the roles played by ion channels in these mechanisms of reorganization of the cellular morphology, essential to metastatic dissemination, both through the physical interactions with elements of the cytoskeleton and by intracellular signaling pathways involved.
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Affiliation(s)
- Lise Rodat-Despoix
- Laboratoire de Physiologie Cellulaire et Moléculaire (UR 4667), Université de Picardie Jules Verne, UFR des Sciences, 33 Rue St Leu, 80039 Amiens, France.
| | - Mohamed Chamlali
- Laboratoire de Physiologie Cellulaire et Moléculaire (UR 4667), Université de Picardie Jules Verne, UFR des Sciences, 33 Rue St Leu, 80039 Amiens, France
| | - Halima Ouadid-Ahidouch
- Laboratoire de Physiologie Cellulaire et Moléculaire (UR 4667), Université de Picardie Jules Verne, UFR des Sciences, 33 Rue St Leu, 80039 Amiens, France
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Bacsa B, Tiapko O, Stockner T, Groschner K. Mechanisms and significance of Ca 2+ entry through TRPC channels. CURRENT OPINION IN PHYSIOLOGY 2020; 17:25-33. [PMID: 33210055 PMCID: PMC7116371 DOI: 10.1016/j.cophys.2020.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The transient receptor potential (TRP) superfamily of plasma membrane cation channels has been recognized as a signaling hub in highly diverse settings of human physiopathology. In the past three decades of TRP research, attention was focused mainly on the channels Ca2+ signaling function, albeit additional cellular functions, aside of providing a Ca2+ entry pathway, have been identified. Our understanding of Ca2+ signaling by TRP proteins has recently been advanced by a gain in high-resolution structure information on these pore complexes, and by the development of novel tools to investigate their role in spatiotemporal Ca2+ handling. This review summarizes recent discoveries as well as remaining, unresolved aspects of the canonical subfamily of transient receptor potential channels (TRPC) research. We aim at a concise overview on current mechanistic concepts of Ca2+ entry through- and Ca2+ signaling by TRPC channels.
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Affiliation(s)
- Bernadett Bacsa
- Gottfried-Schatz-Research-Center - Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/D04, 8010 Graz, Austria
| | - Oleksandra Tiapko
- Gottfried-Schatz-Research-Center - Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/D04, 8010 Graz, Austria
| | - Thomas Stockner
- Center for Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, Waehringerstr. 13A, 1090 Vienna, Austria
| | - Klaus Groschner
- Gottfried-Schatz-Research-Center - Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/D04, 8010 Graz, Austria
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Campbell RR, Domingo RD, Williams AR, Wroten MG, McGregor HA, Waltermire RS, Greentree DI, Goulding SP, Thompson AB, Lee KM, Quadir SG, Jimenez Chavez CL, Coelho MA, Gould AT, von Jonquieres G, Klugmann M, Worley PF, Kippin TE, Szumlinski KK. Increased Alcohol-Drinking Induced by Manipulations of mGlu5 Phosphorylation within the Bed Nucleus of the Stria Terminalis. J Neurosci 2019; 39:2745-2761. [PMID: 30737312 PMCID: PMC6445984 DOI: 10.1523/jneurosci.1909-18.2018] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 12/06/2018] [Accepted: 12/21/2018] [Indexed: 12/18/2022] Open
Abstract
The bed nucleus of the stria terminalis (BNST) is part of the limbic-hypothalamic system important for behavioral responses to stress, and glutamate transmission within this region has been implicated in the neurobiology of alcoholism. Herein, we used a combination of immunoblotting, neuropharmacological and transgenic procedures to investigate the role for metabotropic glutamate receptor 5 (mGlu5) signaling within the BNST in excessive drinking. We discovered that mGlu5 signaling in the BNST is linked to excessive alcohol consumption in a manner distinct from behavioral or neuropharmacological endophenotypes that have been previously implicated as triggers for heavy drinking. Our studies demonstrate that, in male mice, a history of chronic binge alcohol-drinking elevates BNST levels of the mGlu5-scaffolding protein Homer2 and activated extracellular signal-regulated kinase (ERK) in an adaptive response to limit alcohol consumption. Male and female transgenic mice expressing a point mutation of mGlu5 that cannot be phosphorylated by ERK exhibit excessive alcohol-drinking, despite greater behavioral signs of alcohol intoxication and reduced anxiety, and are insensitive to local manipulations of signaling in the BNST. These transgenic mice also show selective insensitivity to alcohol-aversion and increased novelty-seeking, which may be relevant to excessive drinking. Further, the insensitivity to alcohol-aversion exhibited by male mice can be mimicked by the local inhibition of ERK signaling within the BNST. Our findings elucidate a novel mGluR5-linked signaling state within BNST that plays a central and unanticipated role in excessive alcohol consumption.SIGNIFICANCE STATEMENT The bed nucleus of the stria terminalis (BNST) is part of the limbic-hypothalamic system important for behavioral responses to stress and alcohol, and glutamate transmission within BNST is implicated in the neurobiology of alcoholism. The present study provides evidence that a history of excessive alcohol drinking increases signaling through the metabotropic glutamate receptor 5 (mGlu5) receptor within the BNST in an adaptive response to limit alcohol consumption. In particular, disruption of mGlu5 phosphorylation by extracellular signal-regulated kinase within this brain region induces excessive alcohol-drinking, which reflects a selective insensitivity to the aversive properties of alcohol intoxication. These data indicate that a specific signaling state of mGlu5 within BNST plays a central and unanticipated role in excessive alcohol consumption.
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Affiliation(s)
- Rianne R Campbell
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Racquel D Domingo
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Amy R Williams
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Melissa G Wroten
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Hadley A McGregor
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Ryan S Waltermire
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Daniel I Greentree
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Scott P Goulding
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Andrew B Thompson
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Kaziya M Lee
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Sema G Quadir
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - C Leonardo Jimenez Chavez
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Michal A Coelho
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Adam T Gould
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Georg von Jonquieres
- Translational Neuroscience Facility, School of Medical Sciences, University of New South Wales, New South Wales 2052, Australia, and
| | - Matthias Klugmann
- Translational Neuroscience Facility, School of Medical Sciences, University of New South Wales, New South Wales 2052, Australia, and
| | - Paul F Worley
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Tod E Kippin
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660
| | - Karen K Szumlinski
- Department of Psychological and Brain Sciences, the Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9660,
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Li J, Zhang X, Song X, Liu R, Zhang J, Li Z. The structure of TRPC ion channels. Cell Calcium 2019; 80:25-28. [PMID: 30928685 DOI: 10.1016/j.ceca.2019.03.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/13/2019] [Accepted: 03/13/2019] [Indexed: 02/06/2023]
Abstract
Briefly review the recent structural work of transient receptor potential canonical (TRPC) ion channels by using electron cryo-microscopy (cryo-EM). The high resolution structures of TRPC3, TRPC4, TRPC5 and TRPC6 are discussed.
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Affiliation(s)
- Jian Li
- College of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, Jiangxi, 341000, China; Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Ganan Medical University, Ganzhou, 341000, China
| | - Xu Zhang
- School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Xiaojing Song
- School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Rui Liu
- School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Jin Zhang
- School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi, 330031, China.
| | - Zongli Li
- Howard Hughes Medical Institute, Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, 02115, USA.
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Strange K, Yamada T, Denton JS. A 30-year journey from volume-regulated anion currents to molecular structure of the LRRC8 channel. J Gen Physiol 2019; 151:100-117. [PMID: 30651298 PMCID: PMC6363415 DOI: 10.1085/jgp.201812138] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 01/03/2019] [Indexed: 12/18/2022] Open
Abstract
Strange et al. review recent advances in our understanding of the molecular and structural basis of volume-regulated anion channel function within the framework of classical biophysical and physiological studies. The swelling-activated anion channel VRAC has fascinated and frustrated physiologists since it was first described in 1988. Multiple laboratories have defined VRAC’s biophysical properties and have shown that it plays a central role in cell volume regulation and possibly other fundamental physiological processes. However, confusion and intense controversy surrounding the channel’s molecular identity greatly hindered progress in the field for >15 yr. A major breakthrough came in 2014 with the demonstration that VRAC is a heteromeric channel encoded by five members of the Lrrc8 gene family, Lrrc8A–E. A mere 4 yr later, four laboratories described cryo-EM structures of LRRC8A homomeric channels. As the melee of structure/function and physiology studies begins, it is critical that this work be framed by a clear understanding of VRAC biophysics, regulation, and cellular physiology as well as by the field’s past confusion and controversies. That understanding is essential for the design and interpretation of structure/function studies, studies of VRAC physiology, and studies aimed at addressing the vexing problem of how the channel detects cell volume changes. In this review we discuss key aspects of VRAC biophysics, regulation, and function and integrate these into our emerging understanding of LRRC8 protein structure/function.
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Affiliation(s)
- Kevin Strange
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN.,Novo Biosciences, Inc., Bar Harbor, ME
| | - Toshiki Yamada
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN
| | - Jerod S Denton
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN
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Datko MC, Hu JH, Williams M, Reyes CM, Lominac KD, von Jonquieres G, Klugmann M, Worley PF, Szumlinski KK. Behavioral and Neurochemical Phenotyping of Mice Incapable of Homer1a Induction. Front Behav Neurosci 2017; 11:208. [PMID: 29163080 PMCID: PMC5672496 DOI: 10.3389/fnbeh.2017.00208] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 10/12/2017] [Indexed: 11/18/2022] Open
Abstract
Immediate early and constitutively expressed products of the Homer1 gene regulate the functional assembly of post-synaptic density proteins at glutamatergic synapses to influence excitatory neurotransmission and synaptic plasticity. Earlier studies of Homer1 gene knock-out (KO) mice indicated active, but distinct, roles for IEG and constitutively expressed Homer1 gene products in regulating cognitive, emotional, motivational and sensorimotor processing, as well as behavioral and neurochemical sensitivity to cocaine. More recent characterization of transgenic mice engineered to prevent generation of the IEG form (a.k.a Homer1a KO) pose a critical role for Homer1a in cocaine-induced behavioral and neurochemical sensitization of relevance to drug addiction and related neuropsychiatric disorders. Here, we extend our characterization of the Homer1a KO mouse and report a modest pro-depressant phenotype, but no deleterious effects of the KO upon spatial learning/memory, prepulse inhibition, or cocaine-induced place-conditioning. As we reported previously, Homer1a KO mice did not develop cocaine-induced behavioral or neurochemical sensitization within the nucleus accumbens; however, virus-mediated Homer1a over-expression within the nucleus accumbens reversed the sensitization phenotype of KO mice. We also report several neurochemical abnormalities within the nucleus accumbens of Homer1a KO mice that include: elevated basal dopamine and reduced basal glutamate content, Group1 mGluR agonist-induced glutamate release and high K+-stimulated release of dopamine and glutamate within this region. Many of the neurochemical anomalies exhibited by Homer1a KO mice are recapitulated upon deletion of the entire Homer1 gene; however, Homer1 deletion did not affect NAC dopamine or alter K+-stimulated neurotransmitter release within this region. These data show that the selective deletion of Homer1a produces a behavioral and neurochemical phenotype that is distinguishable from that produced by deletion of the entire Homer1 gene. Moreover, the data indicate a specific role for Homer1a in regulating cocaine-induced behavioral and neurochemical sensitization of potential relevance to the psychotogenic properties of this drug.
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Affiliation(s)
- Michael C Datko
- Department of Psychological and Brain Sciences, University of California, Santa Barbara, Santa Barbara, CA, United States
| | - Jia-Hua Hu
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Melanie Williams
- Department of Molecular, Developmental and Cell Biology, University of California, Santa Barbara, Santa Barbara, CA, United States
| | - Cindy M Reyes
- Department of Psychological and Brain Sciences, University of California, Santa Barbara, Santa Barbara, CA, United States
| | - Kevin D Lominac
- Department of Psychological and Brain Sciences, University of California, Santa Barbara, Santa Barbara, CA, United States
| | - Georg von Jonquieres
- Translational Neuroscience Facility, School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Matthias Klugmann
- Translational Neuroscience Facility, School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Paul F Worley
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Karen K Szumlinski
- Department of Psychological and Brain Sciences, University of California, Santa Barbara, Santa Barbara, CA, United States.,Department of Molecular, Developmental and Cell Biology, University of California, Santa Barbara, Santa Barbara, CA, United States.,Neuroscience Research Institute, University of California, Santa Barbara, Santa Barbara, CA, United States
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