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Kasakura N, Murata Y, Shindo A, Kitaoka S, Furuyashiki T, Suzuki K, Segi-Nishida E. Overexpression of NT-3 in the hippocampus suppresses the early phase of the adult neurogenic process. Front Neurosci 2023; 17:1178555. [PMID: 37575306 PMCID: PMC10413268 DOI: 10.3389/fnins.2023.1178555] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023] Open
Abstract
The dentate gyrus (DG) of the hippocampus regulates stress-related emotional behaviors and ensures neurogenesis throughout life. Neurotrophin-3 (NT-3) is a neurotrophic factor that regulates neuronal differentiation, survival, and synaptic formation in both the peripheral and central nervous systems. NT-3 is expressed in the adult DG of the hippocampus; several chronic stress conditions enhance NT-3 expression in rodents. However, functional modulation of the adult DG by NT-3 signaling remains unclear. To directly investigate the impact of NT-3 on DG function, NT-3 was overexpressed in the hippocampal ventral DG by an adeno-associated virus carrying NT-3 (AAV-NT-3). Four weeks following the AAV-NT-3 injection, high NT-3 expression was observed in the ventral DG. We examined the influence of NT-3 overexpression on the neuronal responses and neurogenic processes in the ventral DG. NT-3 overexpression significantly increased the expression of the mature DG neuronal marker calbindin and immediate early genes, such as Fos and Fosb, thereby suggesting DG neuronal activation. During neurogenesis, the number of proliferating cells and immature neurons in the subgranular zone of the DG significantly decreased in the AAV-NT-3 group. Among the neurogenesis-related factors, Vegfd, Lgr6, Bmp7, and Drd1 expression significantly decreased. These results demonstrated that high NT-3 levels in the hippocampus regulate the activation of mature DG neurons and suppress the early phase of neurogenic processes, suggesting a possible role of NT-3 in the regulation of adult hippocampal function under stress conditions.
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Affiliation(s)
- Nanami Kasakura
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
| | - Yuka Murata
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
| | - Asuka Shindo
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
| | - Shiho Kitaoka
- Department of Pharmacology, School of Medicine, Hyogo Medical University, Hyogo, Japan
| | - Tomoyuki Furuyashiki
- Division of Pharmacology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kanzo Suzuki
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan
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Yoshioka T, Yamada D, Segi-Nishida E, Nagase H, Saitoh A. KNT-127, a selective delta opioid receptor agonist, shows beneficial effects in the hippocampal dentate gyrus of a chronic vicarious social defeat stress mouse model. Neuropharmacology 2023; 232:109511. [PMID: 37001727 DOI: 10.1016/j.neuropharm.2023.109511] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/11/2023] [Accepted: 03/18/2023] [Indexed: 03/31/2023]
Abstract
Delta opioid receptors (DOPs) play an important role in depression and other mood disorders. However, little is known about the underlying physiological mechanisms. The hypothalamic-pituitary-adrenal axis, adult hippocampal neurogenesis, and neuroinflammation are regarded as key pathophysiological factors in depression. In this study, we investigated the influence of DOP activation on those factors in a valid animal model of depression, chronic vicarious social defeat stress (cVSDS) mice. cVSDS mice (male C57BL/6J mice) were produced following a 10-day exposure to witness of social defeat stress, and each evaluation was performed more than 28 days after the stress period. Repeated administrations to cVSDS mice with a selective DOP agonist, KNT-127, both during (10 days) and after (28 days) the stress period respectively improved their decreased social interaction behaviors and increased serum corticosterone levels. When administered during the stress period, KNT-127 suppressed decreases in the hippocampal newborn neuron survival rate in cVSDS mice. Moreover, in both administration paradigms, KNT-127 reduced the number of Iba-1- and CD11b-positive cells in the subgranular zone and the granule cell layer of the hippocampal dentate gyrus, indicating a suppression of cVSDS-induced microglial overactivation. These results suggest that KNT-127 acts over the hypothalamic-pituitary-adrenal axis and regulates neurogenesis and neuroinflammation resulting in anti-stress effects, and the antidepressant-like effects of the DOP agonist are implicated in the suppression of the neuroinflammation. This study presents a new finding on the effects of repeated DOP activations on the pathophysiological states of depression.
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Matsuura S, Nishimoto Y, Endo A, Shiraki H, Suzuki K, Segi-Nishida E. Hippocampal Inflammation and Gene Expression Changes in Peripheral Lipopolysaccharide Challenged Mice Showing Sickness and Anxiety-Like Behaviors. Biol Pharm Bull 2023; 46:1176-1183. [PMID: 37661396 DOI: 10.1248/bpb.b22-00729] [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] [Indexed: 09/05/2023]
Abstract
Neuroinflammation is often associated with the development of depressive and anxiety disorders. The hippocampus is one of the brain regions affected by inflammation that is associated with these symptoms. However, the mechanism of hippocampal inflammation-induced emotional behavior remains unknown. The aim of this study was to clarify temporal changes in the neuroinflammatory responses in the hippocampus and the response of dentate gyrus (DG) neurons using peripheral lipopolysaccharide (LPS)-challenged mice. LPS administration induced anxiety-like activity in the elevated plus maze test and social interaction test after 24 h, at which time the mice had recovered from sickness behavior. We examined the hippocampal inflammation-related gene expression changes over time. The expression of interleukin-1β (Il1b) and tumor necrosis factor α (Tnfa) was rapidly enhanced and sustained until 24 h after LPS administration, whereas the expression of Il6 was transiently induced at approx. 6 h. IL-6-dependent downstream signaling of transducer and activator of transcription 3 (STAT3) was also activated approx. 3-6 h after LPS treatment. The expression of innate immune genes including interferon-induced transmembrane proteins such as interferon-induced transmembrane protein 1 (Ifitm1) and Ifitm3 and complement factors such as C1qa and C1qb started to increase approx. 6 h and showed sustained or further increase at 24 h. We also examined changes in the expression of several maturation markers in the DG and found that LPS enhanced the expression of calbindin 1 (Calb1), tryptophan-2,3-dioxigenase 2 (Tdo2), Il1rl, and neurotrophin-3 (Ntf3) at 24 h after LPS treatment. Collectively, these results demonstrate temporal changes of inflammation and gene expression in the hippocampus in LPS-induced sickness and anxiety-like behaviors.
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Affiliation(s)
- Sumire Matsuura
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science
| | - Yuki Nishimoto
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science
| | - Akane Endo
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science
| | - Hirono Shiraki
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science
| | - Kanzo Suzuki
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science
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Segi-Nishida E, Suzuki K. Regulation of adult-born and mature neurons in stress response and antidepressant action in the dentate gyrus of the hippocampus. Neurosci Res 2022:S0168-0102(22)00233-4. [PMID: 36030966 DOI: 10.1016/j.neures.2022.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022]
Abstract
The dentate gyrus (DG) of the hippocampus has been implicated in the regulation of stress responses, and in the pathophysiology and treatment of depression. This review discusses the cellular changes caused by chronic stress and the cellular role of the DG in stress-induced behavioral changes and its antidepressant-like effects. Regarding adult-born neurogenic processes in the DG, chronic stress, such as repeated social defeat, suppresses cell proliferation during and immediately after stress; however, this effect is transient. The subsequent differentiation and survival processes are differentially regulated depending on the timing and sensitivity of stress. The activation of young adult-born neurons during stress contributes to stress resilience, while the transient increase in the survival of adult-born neurons after the cessation of stress seems to promote stress susceptibility. In mature granule neurons, the predominant cells in the DG, synaptic plasticity is suppressed by chronic stress. However, a group of mature granule neurons is activated by chronic stress. Chronic antidepressant treatment can transform mature granule neurons to a phenotype resembling that of immature neurons, characterized as "dematuration". Adult-born neurons suppress the activation of mature granule neurons during stress, indicating that local neural interactions within the DG are important for the stress response. Elucidating the stress-associated context- and timing-dependent cellular changes and functions in the DG will provide insights into stress-related psychiatric diseases.
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Affiliation(s)
- Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo, Japan.
| | - Kanzo Suzuki
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo, Japan
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Yoshioka T, Yamada D, Kobayashi R, Segi-Nishida E, Saitoh A. Chronic vicarious social defeat stress attenuates new-born neuronal cell survival in mouse hippocampus. Behav Brain Res 2022; 416:113536. [PMID: 34416303 DOI: 10.1016/j.bbr.2021.113536] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 05/01/2021] [Revised: 08/11/2021] [Accepted: 08/16/2021] [Indexed: 12/11/2022]
Abstract
Increasing evidence has shown that adult hippocampal neurogenesis is closely related to the pathophysiological condition of depressive disorders. Recently, chronic social defeat stress paradigms have been regarded as important animal models of depression, accompanied with neural plastic changes in the hippocampus. However, little is known about influences of non-physical stress on neurogenesis. In the present study, we focused on the chronic vicarious social defeat stress paradigm and examined the effect of psychological stress on mouse hippocampal neurogenesis. Immediately after the chronic psychological stress, the cell survival rate in the dentate gyrus of the hippocampus was significantly diminished without modifying the cell proliferation rate. The decreased ratio in cell survival persisted for 4 weeks after the stress-loading period, while the differentiation and maturity of new-born neurons were identical to control groups. Furthermore, treatment with the chronic antidepressant fluoxetine reversed the social behavioral deficits and promoted new-born neurons survival. These results demonstrate that emotional stress in the vicarious social defeat stress paradigm influences neuronal cell survival in the hippocampus, which reinforces its validity as an animal model of depression.
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Affiliation(s)
- Toshinori Yoshioka
- Laboratory of Pharmacology, Faculty of Pharmaceutical Science, Tokyo University of Science, Noda, Japan
| | - Daisuke Yamada
- Laboratory of Pharmacology, Faculty of Pharmaceutical Science, Tokyo University of Science, Noda, Japan
| | - Riho Kobayashi
- Laboratory of Pharmacology, Faculty of Pharmaceutical Science, Tokyo University of Science, Noda, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Katsushika, Japan
| | - Akiyoshi Saitoh
- Laboratory of Pharmacology, Faculty of Pharmaceutical Science, Tokyo University of Science, Noda, Japan.
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Takefusa M, Kubo Y, Ohno M, Segi-Nishida E. Electroconvulsive seizures lead to lipolytic-induced gene expression changes in mediobasal hypothalamus and decreased white adipose tissue mass. Neuropsychopharmacol Rep 2021; 41:56-64. [PMID: 33426813 PMCID: PMC8182960 DOI: 10.1002/npr2.12156] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/25/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022] Open
Abstract
Aims Electroconvulsive seizure (ECS) therapy is highly effective in the treatment of several psychiatric disorders, including depression. Past studies have shown that the rodent model of ECS reveals the activation of multiple brain regions including the hypothalamus, suggesting that this method of brain stimulation broadly regulates central neuronal function, which results in peripheral function. The ventromedial nucleus of the hypothalamus (VMH) plays an important role in feeding and energy homeostasis. Our previous study showed that ECS increases the expression of anorexigenic factors in the VMH and has an anorexigenic effect in a mouse model. Since the VMH is also suggested to play a critical role in the peripheral lipid metabolism of white adipose tissue (WAT), we hypothesized that ECS alters lipid metabolism via activation of the VMH. Methods and Results Here, we demonstrate that repeated ECS suppresses the fat mass of epididymal WAT and significantly increases the expression levels of lipolytic and brown adipose tissue markers such as Adrb3, Hsl/Lipe, and Ppargc1a. In the VMH, ECS increased the expression of multiple genes, notably Bdnf, Adcyap1, and Crhr2, which are not only anorexigenic factors but are also modulators of lipid metabolism. Furthermore, gold‐thioglucose‐induced hypothalamic lesions affecting the VMH abolished the effect of ECS on the WAT, indicating that hypothalamus activation is required for the phenotypic changes seen in the epididymal WAT. Conclusion Our data demonstrates a new effect of ECS on the lipid metabolism of WAT via induction of hypothalamic activity involving the VMH. In the present study, we demonstrated that ECS exerts effects on adipose tissue and suggest the requirement of the hypothalamus, including the VMH, for the lipolytic effect of ECS.![]()
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Affiliation(s)
- Marika Takefusa
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Japan
| | - Yuki Kubo
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Japan
| | - Marie Ohno
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Japan
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Koinuma S, Negishi R, Nomura R, Sato K, Kojima T, Segi-Nishida E, Goitsuka R, Iwakura Y, Wada N, Koriyama Y, Kiryu-Seo S, Kiyama H, Nakamura T. TC10, a Rho family GTPase, is required for efficient axon regeneration in a neuron-autonomous manner. J Neurochem 2020; 157:1196-1206. [PMID: 33156548 DOI: 10.1111/jnc.15235] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 10/28/2020] [Accepted: 11/01/2020] [Indexed: 12/12/2022]
Abstract
Intracellular signaling pathways that promote axon regeneration are closely linked to the mechanism of neurite outgrowth. TC10, a signaling molecule that acts on neurite outgrowth through membrane transport, is a member of the Rho family G proteins. Axon injury increases the TC10 levels in motor neurons, suggesting that TC10 may be involved in axon regeneration. In this study, we tried to understand the roles of TC10 in the nervous system using TC10 knock-out mice. In cultured hippocampal neurons, TC10 ablation significantly reduced axon elongation without affecting ordinary polarization. We determined a role of TC10 in microtubule stabilization at the growth cone neck; therefore, we assume that TC10 limits axon retraction and promotes in vitro axon outgrowth. In addition, there were no notable differences in the size and structure of brains during prenatal and postnatal development between wild-type and TC10 knock-out mice. In motor neurons, axon regeneration after injury was strongly suppressed in mice lacking TC10 (both in conventional and injured nerve specific deletion). In retinal ganglion cells, TC10 ablation suppressed the axon regeneration stimulated by intraocular inflammation and cAMP after optic nerve crush. These results show that TC10 plays an important role in axon regeneration in both the peripheral and central nervous systems, and the role of TC10 in peripheral axon regeneration is neuron-intrinsic.
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Affiliation(s)
- Shingo Koinuma
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan
| | - Ryota Negishi
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan.,Department of Applied Biological Science, Tokyo University of Science, Noda, Japan
| | - Riko Nomura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan.,Department of Biological Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Kazuki Sato
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan
| | - Takuya Kojima
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Ryo Goitsuka
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan
| | - Yoichiro Iwakura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan
| | - Naoyuki Wada
- Department of Applied Biological Science, Tokyo University of Science, Noda, Japan
| | - Yoshiki Koriyama
- Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Sumiko Kiryu-Seo
- Department of Functional Anatomy and Neuroscience, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroshi Kiyama
- Department of Functional Anatomy and Neuroscience, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takeshi Nakamura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan
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Hohjoh H, Horikawa I, Nakagawa K, Segi-Nishida E, Hasegawa H. Induced mRNA expression of matrix metalloproteinases Mmp-3, Mmp-12, and Mmp-13 in the infarct cerebral cortex of photothrombosis model mice. Neurosci Lett 2020; 739:135406. [PMID: 32987131 DOI: 10.1016/j.neulet.2020.135406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 09/20/2020] [Accepted: 09/23/2020] [Indexed: 10/23/2022]
Abstract
A strong therapeutic target of ischemic stroke is controlling brain inflammation. Recent studies have implicated the critical role of C-C chemokine receptor 5 (CCR5) in neuroinflammation during ischemic stroke. It has been reported that the expression of the matrix metalloproteinases, MMP-3, MMP-12, and MMP-13, is controlled by CCR5; however, their expressional regulation in the infarct brain has not been clearly understood. This study investigated the mRNA expression of Mmp-3, -12, and -13 in the ischemic cerebral cortex of photothrombosis mouse model. The three Mmps were highly upregulated in the early stages of ischemic stroke and were expressed in different types of cells. Mmp-3 and Mmp-13 were expressed in blood vessel endothelial cells after ischemia-induction, whereas Mmp-12 was expressed in activated microglia. The expression of Mmp-13 in resting microglia and in neurons of uninjured cerebral cortex was lost in the infarct region. Therefore, the MMPs responding to CCR5 are differentially regulated during ischemic stroke.
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Affiliation(s)
- Hirofumi Hohjoh
- Laboratory of Hygienic Sciences, Kobe Pharmaceutical University, Kobe, Japan
| | - Io Horikawa
- Laboratory of Hygienic Sciences, Kobe Pharmaceutical University, Kobe, Japan
| | - Kimie Nakagawa
- Laboratory of Hygienic Sciences, Kobe Pharmaceutical University, Kobe, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Hiroshi Hasegawa
- Laboratory of Hygienic Sciences, Kobe Pharmaceutical University, Kobe, Japan.
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Kobayashi K, Mikahara Y, Murata Y, Morita D, Matsuura S, Segi-Nishida E, Suzuki H. Predominant Role of Serotonin at the Hippocampal Mossy Fiber Synapse with Redundant Monoaminergic Modulation. iScience 2020; 23:101025. [PMID: 32283526 PMCID: PMC7155202 DOI: 10.1016/j.isci.2020.101025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 02/08/2020] [Accepted: 03/25/2020] [Indexed: 12/28/2022] Open
Abstract
The hippocampal mossy fiber (MF) synapse has been implicated in the pathophysiology and treatment of psychiatric disorders. Alterations of dopaminergic and serotonergic modulations at this synapse are candidate mechanisms underlying antidepressant and other related treatments. However, these monoaminergic modulations share the intracellular signaling pathway at the MF synapse, which implies redundancy in their functions. We here show that endogenous monoamines can potentiate MF synaptic transmission in mouse hippocampal slices by activating the serotonin 5-HT4 receptor. Dopamine receptors were not effectively activated by endogenous agonists, suggesting that the dopaminergic modulation is latent. Electroconvulsive treatment enhanced the 5-HT4 receptor-mediated serotonergic synaptic potentiation specifically at the MF synapse, increased the hippocampal serotonin content, and produced an anxiolytic-like behavioral effect in a 5-HT4 receptor-dependent manner. These results suggest that serotonin plays a predominant role in monoaminergic modulations at the MF synapse. Augmentation of this serotonergic modulation may mediate anxiolytic effects of electroconvulsive treatment.
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Affiliation(s)
- Katsunori Kobayashi
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan.
| | - Yasunori Mikahara
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Yuka Murata
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo 125-8585, Japan
| | - Daiki Morita
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo 125-8585, Japan
| | - Sumire Matsuura
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo 125-8585, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo 125-8585, Japan
| | - Hidenori Suzuki
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
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Kobayashi Y, Segi-Nishida E. Search for factors contributing to resistance to the electroconvulsive seizure treatment model using adrenocorticotrophic hormone-treated mice. Pharmacol Biochem Behav 2019; 186:172767. [PMID: 31491434 DOI: 10.1016/j.pbb.2019.172767] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/02/2019] [Accepted: 09/02/2019] [Indexed: 12/20/2022]
Abstract
Approximately one third of patients with depression remain treatment resistant with existing antidepressants, suggesting that the currently-available antidepressants cannot induce appropriate responses in the brains of all patients. Long-term exposure to adrenocorticotrophic hormone (ACTH) has been proposed as a model that mimics at least some aspects of clinical treatment-resistant depression in rodents. The purpose of this study was to explore potential causes of antidepressant treatment resistance using the chronic ACTH-treated mouse model. We subjected ACTH-treated mice to a rodent model of electroconvulsive therapy, i.e., electroconvulsive seizure (ECS), which induces various molecular and cellular changes, including in gene expression and adult neurogenesis in the hippocampus. First, behavioral effect of repeated ECS in the forced swim test (FST) was examined. In our experimental setting, ACTH-treated mice showed resistance to the antidepressant-like effect of ECS in the FST. We then examined which cellular and molecular changes induced by ECS were attenuated by ACTH administration. Chronic ACTH treatment suppressed the increase of gene expression such as of Bdnf, Npy, and Drd1 induced by ECS in the hippocampus. In contrast, there was no difference in ECS-induced promotion of the early neurogenetic process in the hippocampus between ACTH-treated and control mice. Our results suggest the possibility that impaired neuromodulation and monoamine signaling in the hippocampus are among the factors contributing to antidepressant treatment resistance.
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Affiliation(s)
- Yurika Kobayashi
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Japan.
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11
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Ueno M, Sugimoto M, Ohtsubo K, Sakai N, Endo A, Shikano K, Imoto Y, Segi-Nishida E. The effect of electroconvulsive seizure on survival, neuronal differentiation, and expression of the maturation marker in the adult mouse hippocampus. J Neurochem 2019; 149:488-498. [PMID: 30825322 DOI: 10.1111/jnc.14691] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 02/07/2019] [Accepted: 02/26/2019] [Indexed: 01/01/2023]
Abstract
Electroconvulsive seizure (ECS), a model of electroconvulsive therapy in rodents, strongly increases neurogenesis in the adult hippocampus. Neurogenesis is a multi-step process that spans proliferation, survival, neuronal differentiation, and functional maturation. Our previous study demonstrated that ECS stimulates the proliferation of neural stem-like cells. However, the contribution of ECS to survival, neuronal differentiation, and maturation in newborn cells remains unknown. To evaluate the effect of ECS on these processes, we labeled newborn cells with bromodeoxyuridine (BrdU) before ECS treatment to determine the cell age and examined the survival rate and expression of cellular markers in the BrdU-labeled cells. Our results revealed that exposure to ECS (11 repetitions) during the differentiation phase significantly increased survival and promoted neuronal differentiation of newborn cells in the dentate gyrus. Four of ECS repetitions during the early differentiation phase were sufficient to promote dendritic outgrowth in immature neurons and enhance the expression of the immature neuronal marker, calretinin, in newborn cells. In contrast, exposure to ECS (11 repetitions) during the late maturation phase significantly suppressed the expression of the mature neuronal marker, calbindin, in newborn neurons. These results demonstrate that ECS during the differentiation phase promoted survival and neuronal differentiation and, in contrast, suppressed mature marker expression during the late maturation phase, suggesting that ECS has multiple effects on the different stages of adult neurogenesis.
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Affiliation(s)
- Miyuki Ueno
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Mami Sugimoto
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Keisuke Ohtsubo
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Naoto Sakai
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Akane Endo
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Kisako Shikano
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Yuki Imoto
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
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Kitadate Y, Jörg DJ, Tokue M, Maruyama A, Ichikawa R, Tsuchiya S, Segi-Nishida E, Nakagawa T, Uchida A, Kimura-Yoshida C, Mizuno S, Sugiyama F, Azami T, Ema M, Noda C, Kobayashi S, Matsuo I, Kanai Y, Nagasawa T, Sugimoto Y, Takahashi S, Simons BD, Yoshida S. Competition for Mitogens Regulates Spermatogenic Stem Cell Homeostasis in an Open Niche. Cell Stem Cell 2018; 24:79-92.e6. [PMID: 30581080 PMCID: PMC6327111 DOI: 10.1016/j.stem.2018.11.013] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/30/2018] [Accepted: 11/09/2018] [Indexed: 01/08/2023]
Abstract
In many tissues, homeostasis is maintained by physical contact between stem cells and an anatomically defined niche. However, how stem cell homeostasis is achieved in environments where cells are motile and dispersed among their progeny remains unknown. Using murine spermatogenesis as a model, we find that spermatogenic stem cell density is tightly regulated by the supply of fibroblast growth factors (FGFs) from lymphatic endothelial cells. We propose that stem cell homeostasis is achieved through competition for a limited supply of FGFs. We show that the quantitative dependence of stem cell density on FGF dosage, the biased localization of stem cells toward FGF sources, and stem cell dynamics during regeneration following injury can all be predicted and explained within the framework of a minimal theoretical model based on "mitogen competition." We propose that this model provides a generic and robust mechanism to support stem cell homeostasis in open, or facultative, niche environments.
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Affiliation(s)
- Yu Kitadate
- Division of Germ Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan; Department of Basic Biology, School of Life Science, Graduate University for Advanced Studies (Sokendai), 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - David J Jörg
- The Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK; Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, UK
| | - Moe Tokue
- Division of Germ Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan; Department of Basic Biology, School of Life Science, Graduate University for Advanced Studies (Sokendai), 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Ayumi Maruyama
- Division of Germ Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Rie Ichikawa
- Division of Germ Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Soken Tsuchiya
- Department of Pharmaceutical Biochemistry, Kumamoto University Graduate School of Pharmaceutical Sciences, Oe-Honmachi, Kumamoto 862-0973, Japan; AMED-CREST, Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan
| | - Toshinori Nakagawa
- Division of Germ Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan; Department of Basic Biology, School of Life Science, Graduate University for Advanced Studies (Sokendai), 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Aya Uchida
- Department of Veterinary Anatomy, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Chiharu Kimura-Yoshida
- Department of Molecular Embryology, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization 840, Murodo-cho, Izumi, Osaka, 594-1101, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Fumihiro Sugiyama
- Laboratory Animal Resource Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Takuya Azami
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Chiyo Noda
- Division of Environmental Photobiology, National Institute for Basic Biology, Okazaki 444-8585, Japan
| | - Satoru Kobayashi
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Isao Matsuo
- Department of Molecular Embryology, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization 840, Murodo-cho, Izumi, Osaka, 594-1101, Japan
| | - Yoshiakira Kanai
- Department of Veterinary Anatomy, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Takashi Nagasawa
- Laboratory of Stem Cell Biology and Developmental Immunology, Graduate School of Frontier Biosciences, Graduate School of Medicine, Immunology Frontier Research Center, World Premier International Research Center (WPI), Osaka University, Osaka 565-0871, Japan
| | - Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Kumamoto University Graduate School of Pharmaceutical Sciences, Oe-Honmachi, Kumamoto 862-0973, Japan; AMED-CREST, Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan; Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
| | - Benjamin D Simons
- The Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK; Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, UK; Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge CB2 1QR, UK.
| | - Shosei Yoshida
- Division of Germ Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan; Department of Basic Biology, School of Life Science, Graduate University for Advanced Studies (Sokendai), 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan; AMED-CREST, Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan.
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Segi-Nishida E, Imoto Y, Kobayashi K. [Maturation-related phenotypic changes in the adult hippocampal neurons by electrocovulsive treatment]. Nihon Yakurigaku Zasshi 2017; 150:218-222. [PMID: 29118283 DOI: 10.1254/fpj.150.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Segi-Nishida E. The Effect of Serotonin-Targeting Antidepressants on Neurogenesis and Neuronal Maturation of the Hippocampus Mediated via 5-HT1A and 5-HT4 Receptors. Front Cell Neurosci 2017; 11:142. [PMID: 28559799 PMCID: PMC5432636 DOI: 10.3389/fncel.2017.00142] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 04/28/2017] [Indexed: 11/13/2022] Open
Abstract
Antidepressant drugs such as selective serotonin reuptake inhibitors (SSRIs) specifically increase serotonin (5-HT) levels in the synaptic cleft and are widely used to treat mood and anxiety disorders. There are 14 established subtypes of 5-HT receptors in rodents, each of which has regionally different expression patterns. Many preclinical studies have suggested that the hippocampus, which contains abundant 5-HT1A and 5-HT4 receptor subtypes in the dentate gyrus (DG), is critically involved in the mechanisms of action of antidepressants. This review article will analyze studies demonstrating regulation of hippocampal functions and hippocampus-dependent behaviors by SSRIs and similar serotonergic agents. Multiple studies indicate that 5-HT1A and 5-HT4 receptor signaling in the DG contributes to SSRI-mediated promotion of neurogenesis and increased neurotrophic factors expression. Chronic SSRI treatment causes functions and phenotypes of mature granule cells (GCs) to revert to immature-like phenotypes defined as a "dematured" state in the DG, and to increase monoamine reactivity at the dentate-to-CA3 synapses, via 5-HT4 receptor signaling. Behavioral studies demonstrate that the 5-HT1A receptors on mature GCs are critical for expression of antidepressant effects in the forced swim test and in novelty suppressed feeding; such studies also note that 5-HT4 receptors mediate neurogenesis-dependent antidepressant activity in, for example, novelty-suppressed feeding. Despite their limitations, the collective results of these studies describe a potential new mechanism of action, in which 5-HT1A and 5-HT4 receptor signaling, either independently or cooperatively, modulates the function of the hippocampal DG at multiple levels, any of which could play a critical role in the antidepressant actions of 5-HT-enhancing drugs.
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Affiliation(s)
- Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of ScienceTokyo, Japan
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Imoto Y, Segi-Nishida E, Suzuki H, Kobayashi K. Rapid and stable changes in maturation-related phenotypes of the adult hippocampal neurons by electroconvulsive treatment. Mol Brain 2017; 10:8. [PMID: 28253930 PMCID: PMC5335812 DOI: 10.1186/s13041-017-0288-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 02/22/2017] [Indexed: 12/28/2022] Open
Abstract
Electroconvulsive therapy (ECT) is a highly effective and fast-acting treatment for depression. Despite a long history of clinical use, its mechanism of action remains poorly understood. Recently, a novel cellular mechanism of antidepressant action has been proposed: the phenotype of mature brain neurons is transformed to immature-like one by antidepressant drug treatments. We show here that electroconvulsive stimulation (ECS), an animal model of ECT, causes profound changes in maturation-related phenotypes of neurons in the hippocampal dentate gyrus of adult mice. Single ECS immediately reduced expression of mature neuronal markers in almost entire population of dentate granule cells. After ECS treatments, granule cells showed some of physiological properties characteristic of immature granule cells such as higher somatic intrinsic excitability and smaller frequency facilitation at the detate-to-CA3 synapse. The rapid downregulation of maturation markers was suppressed by antagonizing glutamate NMDA receptors, but not by perturbing the serotonergic system. While single ECS caused short-lasting effects, repeated ECS induced stable changes in the maturation-related phenotypes lasting more than 2 weeks along with enhancement of synaptic excitation of granule cells. Augmentation of synaptic inhibition or blockade of NMDA receptors after repeated ECS facilitated regaining the initial mature phenotype, suggesting a role for endogenous neuronal excitation in maintaining the altered maturation-related phenotype probably via NMDA receptor activation. These results suggest that brief neuronal activation by ECS induces "dematuration" of the mature granule cells and that enhanced endogenous excitability is likely to support maintenance of such a demature state. The global increase in neuronal excitability accompanying this process may be relevant to the high efficacy of ECT.
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Affiliation(s)
- Yuki Imoto
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Eri Segi-Nishida
- Center for Integrative Education in Pharmacy and Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan. .,Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, Japan.
| | - Hidenori Suzuki
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, Sendagi, Bunkyō, Tokyo, Japan.,Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Saitama, Japan
| | - Katsunori Kobayashi
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, Sendagi, Bunkyō, Tokyo, Japan. .,Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Saitama, Japan.
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Kobayashi K, Imoto Y, Yamamoto F, Kawasaki M, Ueno M, Segi-Nishida E, Suzuki H. Rapid and lasting enhancement of dopaminergic modulation at the hippocampal mossy fiber synapse by electroconvulsive treatment. J Neurophysiol 2016; 117:284-289. [PMID: 27784811 DOI: 10.1152/jn.00740.2016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 10/21/2016] [Indexed: 12/24/2022] Open
Abstract
Electroconvulsive therapy (ECT) is an established effective treatment for medication-resistant depression with the rapid onset of action. However, its cellular mechanism of action has not been revealed. We have previously shown that chronic antidepressant drug treatments enhance dopamine D1-like receptor-dependent synaptic potentiation at the hippocampal mossy fiber (MF)-CA3 excitatory synapse. In this study we show that ECT-like treatments in mice also have marked effects on the dopaminergic synaptic modulation. Repeated electroconvulsive stimulation (ECS), an animal model of ECT, strongly enhanced the dopamine-induced synaptic potentiation at the MF synapse in hippocampal slices. Significant enhancement was detectable after the second ECS, and further repetition of ECS up to 11 times monotonously increased the magnitude of enhancement. After repeated ECS, the dopamine-induced synaptic potentiation remained enhanced for more than 4 wk. These synaptic effects of ECS were accompanied by increased expression of the dopamine D1 receptor gene. Our results demonstrate that robust neuronal activation by ECS induces rapid and long-lasting enhancement of dopamine-induced synaptic potentiation at the MF synapse, likely via increased expression of the D1 receptor, at least in part. This rapid enhancement of dopamine-induced potentiation at the excitatory synapse may be relevant to the fast-acting antidepressant effect of ECT. NEW & NOTEWORTHY We show that electroconvulsive therapy (ECT)-like stimulation greatly enhances synaptic potentiation induced by dopamine at the excitatory synapse formed by the hippocampal mossy fiber in mice. The effect of ECT-like stimulation on the dopaminergic modulation was rapidly induced, maintained for more than 4 wk after repeated treatments, and most likely mediated by increased expression of the dopamine D1 receptor. These effects may be relevant to fast-acting strong antidepressant action of ECT.
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Affiliation(s)
- Katsunori Kobayashi
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan; .,Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Saitama, Japan
| | - Yuki Imoto
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Fumi Yamamoto
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Mayu Kawasaki
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Miyuki Ueno
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Eri Segi-Nishida
- Center for Integrative Education in Pharmacy and Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan; and.,Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Hidenori Suzuki
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan.,Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Saitama, Japan
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Imoto Y, Kira T, Sukeno M, Nishitani N, Nagayasu K, Nakagawa T, Kaneko S, Kobayashi K, Segi-Nishida E. Role of the 5-HT4 receptor in chronic fluoxetine treatment-induced neurogenic activity and granule cell dematuration in the dentate gyrus. Mol Brain 2015; 8:29. [PMID: 25976618 PMCID: PMC4430984 DOI: 10.1186/s13041-015-0120-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 04/24/2015] [Indexed: 11/30/2022] Open
Abstract
Background Chronic treatment with selective serotonin (5-HT) reuptake inhibitors (SSRIs) facilitates adult neurogenesis and reverses the state of maturation in mature granule cells (GCs) in the dentate gyrus (DG) of the hippocampus. Recent studies have suggested that the 5-HT4 receptor is involved in both effects. However, it is largely unknown how the 5-HT4 receptor mediates neurogenic effects in the DG and, how the neurogenic and dematuration effects of SSRIs interact with each other. Results We addressed these issues using 5-HT4 receptor knockout (5-HT4R KO) mice. Expression of the 5-HT4 receptor was detected in mature GCs but not in neuronal progenitors of the DG. We found that chronic treatment with the SSRI fluoxetine significantly increased cell proliferation and the number of doublecortin-positive cells in the DG of wild-type mice, but not in 5-HT4R KO mice. We then examined the correlation between the increased neurogenesis and the dematuration of GCs. As reported previously, reduced expression of calbindin in the DG, as an index of dematuration, by chronic fluoxetine treatment was observed in wild-type mice but not in 5-HT4R KO mice. The proliferative effect of fluoxetine was inversely correlated with the expression level of calbindin in the DG. The expression of neurogenic factors in the DG, such as brain derived neurotrophic factor (Bdnf), was also associated with the progression of dematuration. These results indicate that the neurogenic effects of fluoxetine in the DG are closely associated with the progression of dematuration of GCs. In contrast, the DG in which neurogenesis was impaired by irradiation still showed significant reduction of calbindin expression by chronic fluoxetine treatment, suggesting that dematuration of GCs by fluoxetine does not require adult neurogenesis in the DG. Conclusions We demonstrated that the 5-HT4 receptor plays an important role in fluoxetine-induced adult neurogenesis in the DG in addition to GC dematuration, and that these phenomena are closely associated. Our results suggest that 5-HT4 receptor-mediated phenotypic changes, including dematuration in mature GCs, underlie the neurogenic effect of SSRIs in the DG, providing new insight into the cellular mechanisms of the neurogenic actions of SSRIs in the hippocampus.
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Affiliation(s)
- Yuki Imoto
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences Kyoto University, Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Toshihiko Kira
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences Kyoto University, Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Mamiko Sukeno
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences Kyoto University, Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Naoya Nishitani
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences Kyoto University, Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Kazuki Nagayasu
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences Kyoto University, Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Takayuki Nakagawa
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences Kyoto University, Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Shuji Kaneko
- Department of Molecular Pharmacology, Graduate School of Pharmaceutical Sciences Kyoto University, Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Katsunori Kobayashi
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, Sendagi, Bunkyo-ku, Tokyo, Japan. .,Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Saitama, 332-0012, Japan.
| | - Eri Segi-Nishida
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo, 125-8585, Japan.
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Tani Y, Isobe Y, Imoto Y, Segi-Nishida E, Sugimoto Y, Arai H, Arita M. Eosinophils control the resolution of inflammation and draining lymph node hypertrophy through the proresolving mediators and CXCL13 pathway in mice. FASEB J 2014; 28:4036-43. [PMID: 24891522 DOI: 10.1096/fj.14-251132] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 05/19/2014] [Indexed: 12/18/2022]
Abstract
Resolution of inflammation is critical to restoration of tissue function after an inflammatory response. We previously demonstrated that 12/15-lipoxygenase (12/15-LOX)-expressing eosinophils contribute to this process in murine zymosan-induced peritonitis. In this study, eosinophils promoted resolution by regulating expression of macrophage CXCL13. Microarray analysis revealed that eosinophils significantly increased (∼3-fold) the expression of macrophage CXCL13 by a 12/15-LOX-dependent mechanism. CXCL13 depletion caused a resolution defect, with the reduced appearance of phagocytes carrying engulfed zymosan in the draining lymph nodes. Inflamed lymph node hypertrophy, a critical feature of the resolution process, was reduced by ∼60% in eosinophil-deficient mice, and adoptive transfer of eosinophils or administration of CXCL13 corrected this defect. Administration of the 12/15-LOX-derived mediator lipoxin A4 (LXA4) increased the expression of CXCL13 and restored the defect of lymph node hypertrophy in eosinophil-deficient mice. These results demonstrate that eosinophils control the resolution of inflammation and draining lymph node hypertrophy through proresolving lipid mediators and the CXCL13 pathway in mice.
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Affiliation(s)
- Yukako Tani
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Yosuke Isobe
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan; Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Yuki Imoto
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan; and
| | - Eri Segi-Nishida
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan; and
| | - Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroyuki Arai
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Makoto Arita
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan; Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan; Precursory Research for Embryonic Science and Technology (PRESTO), Japanese Science and Technology Agency, Saitama, Japan;
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Morimoto K, Shirata N, Taketomi Y, Tsuchiya S, Segi-Nishida E, Inazumi T, Kabashima K, Tanaka S, Murakami M, Narumiya S, Sugimoto Y. Prostaglandin E2–EP3 Signaling Induces Inflammatory Swelling by Mast Cell Activation. J I 2013; 192:1130-7. [DOI: 10.4049/jimmunol.1300290] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Sakaida M, Sukeno M, Imoto Y, Tsuchiya S, Sugimoto Y, Okuno Y, Segi-Nishida E. Electroconvulsive seizure-induced changes in gene expression in the mouse hypothalamic paraventricular nucleus. J Psychopharmacol 2013; 27:1058-69. [PMID: 23863925 DOI: 10.1177/0269881113497612] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Electroconvulsive therapy is an effective and rapid treatment for depression. In patients with depression, the function of the paraventricular nucleus of the hypothalamus (PVN) is frequently altered. Electroconvulsive seizure (ECS), which is a model of electroconvulsive therapy, upregulates the expression of c-fos in the PVN of animal models. Therefore, we hypothesized that ECS alters gene expression and function in the PVN. The PVN was microdissected from mouse brain sections following ECS treatment, and total RNA was analyzed by microarray. Two hours after ECS, the levels of expression of 2.6% (589 genes) of the genes showed a greater than 2-fold decrease and 0.9% (205 genes) showed a greater than 2-fold increase. Among these genes, 72 of the downregulated genes and 12 of the upregulated genes have been proposed to be associated with psychiatric disorders, such as depression, by knowledge database analyses. The groups of downregulated genes included neuropeptides (Cck), kinases (Prkcb, Camk2a), transcription factors (Tcf4), and transporters (Aqp4), and these have been suggested to be associated with psychiatric disorders and/or PVN function. The results of the present study indicated that ECS treatment could modulate PVN functions through altered gene expression, which may contribute to its antidepressant effects.
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Affiliation(s)
- Mari Sakaida
- 1Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
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Segi-Nishida E, Sukeno M, Imoto Y, Kira T, Sakaida M, Tsuchiya S, Sugimoto Y, Okuno Y. Electroconvulsive seizures activate anorexigenic signals in the ventromedial nuclei of the hypothalamus. Neuropharmacology 2013; 71:164-73. [PMID: 23603200 DOI: 10.1016/j.neuropharm.2013.03.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 03/11/2013] [Accepted: 03/18/2013] [Indexed: 01/16/2023]
Abstract
The ventromedial nucleus of the hypothalamus (VMH) plays an important role in feeding and energy homeostasis. Electroconvulsive seizure (ECS) therapy is highly effective in the treatment of several psychiatric diseases, including depression, but may also have beneficial effects in other neurological diseases. Although it has been reported that the neurons of the VMH are strongly activated by ECS stimulation, the specific effects of ECS in this hypothalamic subnucleus remain unknown. To address this issue, we investigated the changes in gene expression in microdissected-VMH samples in response to ECS in mice, and examined the behavioral effects of ECS on feeding behavior. ECS significantly induced the expression of immediate-early genes such as Fos, Fosb, and Jun, as well as Bdnf, Adcyap1, Hrh1, and Crhr2 in the VMH. Given that signals of these gene products are suggested to have anorexigenic roles in the VMH, we also examined the effect of ECS on food intake and body weight. Repeated ECS had a suppressive effect on food intake and body weight gain under both regular and high-fat diet conditions. Furthermore, gold-thioglucose-induced hypothalamic lesions, including the VMH and the arcuate nucleus, abolished the anorexigenic effects of ECS, indicating the requirement for the activation of the hypothalamus. Our data show an effect of ECS on increased expression of anorexigenic factors in the VMH, and suggest a role in the regulation of energy homeostasis by ECS.
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Affiliation(s)
- Eri Segi-Nishida
- Department of Systems Biosciences for Drug Discovery, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan.
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Abstract
Electroconvulsive seizure (ECS) therapy is a clinically proven treatment for depression and is often effective even in patients resistant to chemical antidepressants. However, the molecular mechanisms underlying the therapeutic efficacy of ECS are not fully understood. Here, I review studies that show molecular, cellular, and behavioral changes by ECS treatment, and discuss the functions of ECS to underlie the action of antidepressant effects. In hippocampus, these changes cover gene induction, increased adult neurogenesis, and electrophysiological reactivity. Especially, the role of vascular endothelial growth factor (VEGF) in neurogenesis is discussed. Among other gene expression changes in hippocampus, a role of cyclooxygenase (COX)-2, an inducible type of the rate-limiting enzyme of prostanoid synthesis, is focused. ECS-induced changes in other brain regions such as prefrontal cortex and hypothalamus, and ECS-induced behavioral changes are also reviewed. Understanding the molecular, cellular, and behavioral changes by ECS will provide a new view to find potential targets for novel antidepressant design that are highlighted by these findings.
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Affiliation(s)
- Eri Segi-Nishida
- Department of Systems Bioscience for Drug Discovery, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606–8501, Japan.
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Inazumi T, Shirata N, Morimoto K, Takano H, Segi-Nishida E, Sugimoto Y. Prostaglandin E₂-EP4 signaling suppresses adipocyte differentiation in mouse embryonic fibroblasts via an autocrine mechanism. J Lipid Res 2011; 52:1500-8. [PMID: 21646392 DOI: 10.1194/jlr.m013615] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The prostaglandin (PG) receptors EP4 and FP have the potential to exert negative effects on adipogenesis, but the exact contribution of endogenous PG-driven receptor signaling to this process is not fully understood. In this study, we employed an adipocyte differentiation system from mouse embryonic fibroblasts (MEF) and compared the effects of each PG receptor-deficiency on adipocyte differentiation. In wild-type (WT) MEF cells, inhibition of endogenous PG synthesis by indomethacin augmented the differentiation, whereas exogenous PGE₂, as well as an FP agonist, reversed the effect of indomethacin. In EP4-deficient cells, basal differentiation was upregulated to the levels in indomethacin-treated WT cells, and indomethacin did not further enhance differentiation. Differentiation in FP-deficient cells was equivalent to WT and was still sensitive to indomethacin. PGE₂ or indomethacin treatment of WT MEF cells for the first two days was enough to suppress or enhance transcription of the Pparg2 gene as well as the subsequent differentiation, respectively. Differentiation stimuli induced COX-2 gene and protein expression, as well as PGE₂ production, in WT MEF cells. These results suggest that PGE₂-EP4 signaling suppresses adipocyte differentiation by affecting Pparg2 expression in an autocrine manner and that FP-mediated inhibition is not directly involved in adipocyte differentiation in the MEF system.
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Affiliation(s)
- Tomoaki Inazumi
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
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25
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Tamba S, Yodoi R, Morimoto K, Inazumi T, Sukeno M, Segi-Nishida E, Okuno Y, Tsujimoto G, Narumiya S, Sugimoto Y. Expression profiling of cumulus cells reveals functional changes during ovulation and central roles of prostaglandin EP2 receptor in cAMP signaling. Biochimie 2010; 92:665-75. [PMID: 20399827 DOI: 10.1016/j.biochi.2010.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Accepted: 04/13/2010] [Indexed: 11/28/2022]
Abstract
To understand the role of prostaglandin (PG) receptor EP2 (Ptger2) signaling in ovulation and fertilization, we investigated time-dependent expression profiles in wild-type (WT) and Ptger2(-/-) cumuli before and after ovulation by using microarrays. We prepared cumulus cells from mice just before and 3, 9 and 14 h after human chorionic gonadotropin injection. Key genes including cAMP-related and epidermal growth factor (EGF) genes, as well as extracellular matrix- (ECM-) related and chemokine genes were up-regulated in WT cumuli at 3 h and 14 h, respectively. Ptger2 deficiency differently affected the expression of many of the key genes at 3 h and 14 h. These results indicate that the gene expression profile of cumulus cells greatly differs before and after ovulation, and in each situation, PGE(2)-EP2 signaling plays a critical role in cAMP-regulated gene expression in the cumulus cells under physiological conditions.
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Affiliation(s)
- Shigero Tamba
- Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Sakyo-ku, Kyoto 606-8501, Japan
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26
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Yodoi R, Tamba S, Morimoto K, Segi-Nishida E, Nishihara M, Ichikawa A, Narumiya S, Sugimoto Y. RhoA/Rho kinase signaling in the cumulus mediates extracellular matrix assembly. Endocrinology 2009; 150:3345-52. [PMID: 19342461 PMCID: PMC2703534 DOI: 10.1210/en.2008-1449] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Cumulus cells surround the oocyte and regulate the production and assembly of the extracellular matrix (ECM) around the cumulus-oocyte complex for its timely interaction with sperm in the oviduct. We recently found that C-C chemokines such as CCL2, CCL7, and CCL9 are produced and stimulate integrin-mediated ECM assembly in the postovulatory cumulus to protect eggs and that prostaglandin E(2)-EP2 signaling in the cumulus cells facilitates fertilization by suppressing this chemokine signaling, which otherwise results in fertilization failure by preventing sperm penetration through the cumulus ECM. However, it remains unknown as to what mechanisms underlie chemokine-induced cumulus ECM assembly. Here we report that inhibition of EP2 signaling or addition of CCL7 augments RhoA activation and induces the surface accumulation of integrin and the contraction of cumulus cells. Enhanced surface accumulation of integrin then stimulates the formation and assembly of fibronectin fibrils as well as induces cumulus ECM resistance to hyaluronidase and sperm penetration. These changes in the cumulus ECM as well as cell contraction are relieved by the addition of Y27632 or blebbistatin. These results suggest that chemokines induce integrin engagement to the ECM and consequent ECM remodeling through the RhoA/Rho kinase/actomyosin pathway, making the cumulus ECM barrier resistant to sperm penetration. Based on these results, we propose that prostaglandin E(2)-EP2 signaling negatively regulates chemokine-induced Rho/ROCK signaling in cumulus cells for successful fertilization.
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Affiliation(s)
- Rieko Yodoi
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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27
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Tsuchiya S, Tachida Y, Segi-Nishida E, Okuno Y, Tamba S, Tsujimoto G, Tanaka S, Sugimoto Y. Characterization of gene expression profiles for different types of mast cells pooled from mouse stomach subregions by an RNA amplification method. BMC Genomics 2009; 10:35. [PMID: 19154611 PMCID: PMC2639374 DOI: 10.1186/1471-2164-10-35] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Accepted: 01/20/2009] [Indexed: 01/28/2023] Open
Abstract
Background Mast cells (MCs) play pivotal roles in allergy and innate immunity and consist of heterogenous subclasses. However, the molecular basis determining the different characteristics of these multiple MC subclasses remains unclear. Results To approach this, we developed a method of RNA extraction/amplification for intact in vivo MCs pooled from frozen tissue sections, which enabled us to obtain the global gene expression pattern of pooled MCs belonging to the same subclass. MCs were isolated from the submucosa (sMCs) and mucosa (mMCs) of mouse stomach sections, respectively, 15 cells were pooled, and their RNA was extracted, amplified and subjected to microarray analysis. Known marker genes specific for mMCs and sMCs showed expected expression trends, indicating accuracy of the analysis. We identified 1,272 genes showing significantly different expression levels between sMCs and mMCs, and classified them into clusters on the basis of similarity of their expression profiles compared with bone marrow-derived MCs, which are the cultured MCs with so-called 'immature' properties. Among them, we found that several key genes such as Notch4 had sMC-biased expression and Ptgr1 had mMC-biased expression. Furthermore, there is a difference in the expression of several genes including extracellular matrix protein components, adhesion molecules, and cytoskeletal proteins between the two MC subclasses, which may reflect functional adaptation of each MC to the mucosal or submucosal environment in the stomach. Conclusion By using the method of RNA amplification from pooled intact MCs, we characterized the distinct gene expression profiles of sMCs and mMCs in the mouse stomach. Our findings offer insight into possible unidentified properties specific for each MC subclass.
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Affiliation(s)
- Soken Tsuchiya
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan.
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28
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Suda S, Segi-Nishida E, Newton SS, Duman RS. A postpartum model in rat: behavioral and gene expression changes induced by ovarian steroid deprivation. Biol Psychiatry 2008; 64:311-9. [PMID: 18471802 PMCID: PMC3714803 DOI: 10.1016/j.biopsych.2008.03.029] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [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: 08/27/2007] [Revised: 03/26/2008] [Accepted: 03/31/2008] [Indexed: 12/16/2022]
Abstract
BACKGROUND Postpartum depression (PPD) affects approximately 10% to 20% of women during the first 4 weeks of the postpartum period and is characterized by labile mood with prominent anxiety and irritability, insomnia, and depressive mood. During the postpartum period, elevated ovarian hormones abruptly decrease to the early follicular phase levels that are postulated to play a major role in triggering PPD. However, the underlying neurobiological mechanisms that contribute to PPD have not been determined. METHODS In the present study, we examined the effect of ovarian steroids, administered at levels that occur during human pregnancy followed by rapid withdrawal to simulate postpartum conditions, on behavior and gene expression in the rat. RESULTS The results of behavioral testing reveal that the hormone-simulated postpartum treatment results in the development of a phenotype relevant to PPD, including vulnerability for helplessness, increased anxiety, and aggression. Real-time quantitative polymerase chain reaction (PCR) demonstrated transient regulation of several genes, including Ca(2+)/calmodulin-dependent protein kinase II (CAMKII), serotonin transporter (SERT), myocyte enhancer factor 2A (MEF2A), brain-derived neurotrophic factor (BDNF), gamma-aminobutyric acid type A receptor alpha 4 (GABAARA4), mothers against decapentaplegic homolog 4 (SMAD4), and aquaporin 4 (AQP4) that could underlie these behavioral effects. CONCLUSIONS These studies provide an improved understanding of the effects of withdrawal from high doses of ovarian hormones on behavior and gene expression changes in the brain that could contribute to the pathophysiology of PPD.
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MESH Headings
- Analysis of Variance
- Animals
- Aquaporin 4/genetics
- Aquaporin 4/metabolism
- Behavior, Animal/drug effects
- Behavior, Animal/physiology
- Calcium-Calmodulin-Dependent Protein Kinase Type 2/genetics
- Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism
- Depression, Postpartum/etiology
- Depression, Postpartum/genetics
- Depression, Postpartum/psychology
- Disease Models, Animal
- Estradiol/pharmacology
- Exploratory Behavior/drug effects
- Female
- Gene Expression Regulation/drug effects
- Gene Expression Regulation/physiology
- Helplessness, Learned
- MEF2 Transcription Factors
- Maze Learning/drug effects
- Maze Learning/physiology
- Myogenic Regulatory Factors/genetics
- Myogenic Regulatory Factors/metabolism
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- Ovariectomy/methods
- Postpartum Period/metabolism
- Rats
- Rats, Sprague-Dawley
- Receptors, GABA-A/genetics
- Receptors, GABA-A/metabolism
- Steroids/metabolism
- Swimming
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Affiliation(s)
- Shiro Suda
- Division of Molecular Psychiatry, Abraham Ribicoff Research Facilities, Connecticut Mental Health Center, Yale University School of Medicine, New Haven, Connecticut 06508, USA
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29
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Nagamachi M, Sakata D, Kabashima K, Furuyashiki T, Murata T, Segi-Nishida E, Soontrapa K, Matsuoka T, Miyachi Y, Narumiya S. Facilitation of Th1-mediated immune response by prostaglandin E receptor EP1. ACTA ACUST UNITED AC 2007; 204:2865-74. [PMID: 17967902 PMCID: PMC2118516 DOI: 10.1084/jem.20070773] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Prostaglandin E2 (PGE2) exerts its actions via four subtypes of the PGE receptor, EP1–4. We show that mice deficient in EP1 exhibited significantly attenuated Th1 response in contact hypersensitivity induced by dinitrofluorobenzene (DNFB). This phenotype was recapitulated in wild-type mice by administration of an EP1-selective antagonist during the sensitization phase, and by adoptive transfer of T cells from sensitized EP1−/− mice. Conversely, an EP1-selective agonist facilitated Th1 differentiation of naive T cells in vitro. Finally, CD11c+ cells containing the inducible form of PGE synthase increased in number in the draining lymph nodes after DNFB application. These results suggest that PGE2 produced by dendritic cells in the lymph nodes acts on EP1 in naive T cells to promote Th1 differentiation.
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Affiliation(s)
- Miyako Nagamachi
- Department of Pharmacology, Faculty of Medicine, Kyoto University, Kyoto 606-8501, Japan
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30
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Yokoyama U, Minamisawa S, Quan H, Ghatak S, Akaike T, Segi-Nishida E, Iwasaki S, Iwamoto M, Misra S, Tamura K, Hori H, Yokota S, Toole BP, Sugimoto Y, Ishikawa Y. Chronic activation of the prostaglandin receptor EP4 promotes hyaluronan-mediated neointimal formation in the ductus arteriosus. J Clin Invest 2006; 116:3026-34. [PMID: 17080198 PMCID: PMC1626128 DOI: 10.1172/jci28639] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.8] [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: 03/24/2006] [Accepted: 08/29/2006] [Indexed: 12/20/2022] Open
Abstract
PGE, a potent vasodilator, plays a primary role in maintaining the patency of the ductus arteriosus (DA). Genetic disruption of the PGE-specific receptor EP4, however, paradoxically results in fatal patent DA (PDA) in mice. Here we demonstrate that EP4-mediated signals promote DA closure by hyaluronic acid-mediated (HA-mediated) intimal cushion formation (ICF). Chronic EP4 stimulation by ONO-AE1-329, a selective EP4 agonist, significantly enhanced migration and HA production in rat DA smooth muscle cells. When HA production was inhibited, EP4-mediated migration was negated. Activation of EP4, adenylyl cyclase, and PKA all increased HA production and the level of HA synthase 2 (HAS2) transcripts. In immature rat DA explants, ICF was promoted by EP4/PKA stimuli. Furthermore, adenovirus-mediated Has2 gene transfer was sufficient to induce ICF in EP4-disrupted DA explants in which the intimal cushion had not formed. Accordingly, signals through EP4 have 2 essential roles in DA development, namely, vascular dilation and ICF. The latter would lead to luminal narrowing, helping adhesive occlusion and permanent closure of the vascular lumen. Our results imply that HA induction serves as an alternative therapeutic strategy for the treatment of PDA to the current one, i.e., inhibition of PGE signaling by cyclooxygenase inhibitors, which might delay PGE-mediated ICF in immature infants.
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MESH Headings
- Animals
- Cell Movement
- Cyclic AMP-Dependent Protein Kinases/metabolism
- Ductus Arteriosus/cytology
- Ductus Arteriosus/embryology
- Ductus Arteriosus/metabolism
- Gene Expression Regulation, Developmental
- Glucuronosyltransferase/genetics
- Hyaluronan Synthases
- Hyaluronic Acid/metabolism
- Mice
- Mice, Knockout
- Muscle, Smooth/cytology
- Muscle, Smooth/embryology
- Muscle, Smooth/metabolism
- Rats
- Receptors, Prostaglandin E/agonists
- Receptors, Prostaglandin E/deficiency
- Receptors, Prostaglandin E/genetics
- Receptors, Prostaglandin E/metabolism
- Receptors, Prostaglandin E, EP4 Subtype
- Signal Transduction
- Tissue Culture Techniques
- Transcription, Genetic/genetics
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Affiliation(s)
- Utako Yokoyama
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Susumu Minamisawa
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Hong Quan
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Shibnath Ghatak
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Toru Akaike
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Eri Segi-Nishida
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Shiho Iwasaki
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Mari Iwamoto
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Suniti Misra
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Kouichi Tamura
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Hideaki Hori
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Shumpei Yokota
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Bryan P. Toole
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Yukihiko Sugimoto
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
| | - Yoshihiro Ishikawa
- Cardiovascular Research Institute, Yokohama City University, Yokohama, Japan.
Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan.
Department of Cell Biology & Anatomy, Medical University of South Carolina, Charleston, South Carolina, USA.
Department of Pharmacology, Kyoto University Faculty of Medicine, Kyoto, Japan.
Department of Pediatrics and
Department of Internal Medicine, Yokohama City University, Yokohama, Japan.
Department of Physiological Chemistry, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan.
Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine and Department of Medicine, Cardiology Services, New Jersey Medical School, Newark, New Jersey, USA
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31
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Honda T, Segi-Nishida E, Miyachi Y, Narumiya S. Prostacyclin-IP signaling and prostaglandin E2-EP2/EP4 signaling both mediate joint inflammation in mouse collagen-induced arthritis. ACTA ACUST UNITED AC 2006; 203:325-35. [PMID: 16446378 PMCID: PMC2118213 DOI: 10.1084/jem.20051310] [Citation(s) in RCA: 162] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Prostaglandin (PG)I2 (prostacyclin [PGI]) and PGE2 are abundantly present in the synovial fluid of rheumatoid arthritis (RA) patients. Although the role of PGE2 in RA has been well studied, how much PGI2 contributes to RA is little known. To examine this issue, we backcrossed mice lacking the PGI receptor (IP) to the DBA/1J strain and subjected them to collagen-induced arthritis (CIA). IP-deficient (IP−/−) mice exhibited significant reduction in arthritic scores compared with wild-type (WT) mice, despite anti-collagen antibody production and complement activation similar to WT mice. IP−/− mice also showed significant reduction in contents of proinflammatory cytokines, such as interleukin (IL)-6 in arthritic paws. Consistently, the addition of an IP agonist to cultured synovial fibroblasts significantly enhanced IL-6 production and induced expression of other arthritis-related genes. On the other hand, loss or inhibition of each PGE receptor subtype alone did not affect elicitation of inflammation in CIA. However, a partial but significant suppression of CIA was achieved by the combined inhibition of EP2 and EP4. Our results show significant roles of both PGI2-IP and PGE2-EP2/EP4 signaling in the development of CIA, and suggest that inhibition of PGE2 synthesis alone may not be sufficient for suppression of RA symptoms.
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MESH Headings
- Animals
- Arthritis, Experimental/genetics
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Bone and Bones/metabolism
- Cells, Cultured
- Collagen
- Cytokines/metabolism
- Dinoprostone/metabolism
- Dinoprostone/physiology
- Epoprostenol/metabolism
- Epoprostenol/physiology
- Fibroblasts/metabolism
- Inflammation/metabolism
- Inflammation/pathology
- Interleukin-6/biosynthesis
- Male
- Mice
- Mice, Inbred DBA
- Mice, Knockout
- Receptors, Epoprostenol
- Receptors, Prostaglandin/genetics
- Receptors, Prostaglandin/physiology
- Receptors, Prostaglandin E/physiology
- Receptors, Prostaglandin E, EP2 Subtype
- Receptors, Prostaglandin E, EP4 Subtype
- Signal Transduction/physiology
- Synovial Membrane/metabolism
- Synovial Membrane/pathology
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Affiliation(s)
- Tetsuya Honda
- Department of Pharmacology, Faculty of Medicine, Kyoto University, Kyoto 606-8501, Japan
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