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Saito S, Hashimoto H, Wakashin H, Ishibane M, Pae S, Saito S, Reien Y, Hirayama Y, Seo Y, Mizushima T, Anzai N. Central administered xenin induced Fos expression in nesfatin-1 neurons in rats. Brain Res Bull 2023; 204:110788. [PMID: 37844783 DOI: 10.1016/j.brainresbull.2023.110788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/03/2023] [Accepted: 10/13/2023] [Indexed: 10/18/2023]
Abstract
Xenin is a 25-amino acid peptide identified in human gastric mucosa, which is widely expressed in peripheral and central tissues. It is known that the central or peripheral administration of xenin decreases food intake in rodents. Nesfatin-1/NUCB2 (nesfatin-1) has been identified as an anorexic neuropeptide, it is often found co-localized with many peptides in the central nervous system. After the intracerebroventricular administration of xenin on nesfain-1-like immunoreactivity (LI) neurons, we examined its effects on food intake and water intake in rats. As a result, Fos-LI neurons were observed in the organum vasculosum of the laminae terminalis (OVLT), the median preoptic nucleus (MnPO), the subfornical organ (SFO), the supraoptic nucleus (SON), the paraventricular nucleus (PVN), the arcuate nucleus (Arc), the lateral hypothalamic area (LHA), the central amygdaloid nucleus (CAN), the dorsal raphe nucleus (DR), the locus coeruleus (LC), the area postrema (AP) and the nucleus of the solitary tract (NTS). After the administration, the number of Fos-LI neurons was significantly increased in the LC and the OVLT, the MnPO, the SFO, the SON, the PVN, the Arc, the LHA, the CAN, the DR, the AP and the NTS, compared with the control group. After the administration of xenin, we conducted double immunohistochemistry for Fos and nesfatin-1, and found that the number of nesfatin-1-LI neurons expressing Fos were significantly increased in the SON, the PVN, the Arc, the LHA, the CAN, the DR, the AP and the NTS, compared with the control group. The pretreatment of nesfatin-1 antisense significantly attenuated this xenin-induced feeding suppression, while that of nesfatin-1 missense showed no improvement. These results indicate that central administered xenin may have anorexia effects associated with activated central nesfatin-1 neurons.
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Affiliation(s)
- Shota Saito
- Department of Pharmacology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, JAPAN; Department of Rehabilitation, Dokkyo Medical University, 8880 Kitakobayashi, Mibu, Shimotsugagun, Tochigi 321-0293, Japan
| | - Hirofumi Hashimoto
- Department of Pharmacology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, JAPAN; Department of Rehabilitation, Dokkyo Medical University, 8880 Kitakobayashi, Mibu, Shimotsugagun, Tochigi 321-0293, Japan; Department of Regulatory Physiology, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Shimotsugagun, Tochigi 321-0293, Japan.
| | - Hidefumi Wakashin
- Department of Regulatory Physiology, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Shimotsugagun, Tochigi 321-0293, Japan
| | - Misaki Ishibane
- Department of Pharmacology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, JAPAN
| | - Sangjon Pae
- Department of Pharmacology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, JAPAN
| | - Shinpei Saito
- Department of Pharmacology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, JAPAN
| | - Yoshie Reien
- Department of Pharmacology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, JAPAN
| | - Yuri Hirayama
- Department of Pharmacology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, JAPAN
| | - Yoshiteru Seo
- Department of Regulatory Physiology, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Shimotsugagun, Tochigi 321-0293, Japan; Division of Cell Structure, National Institute for Physiological Sciences, Okazaki, Aichi 444-8787, Japan
| | - Takashi Mizushima
- Department of Rehabilitation, Dokkyo Medical University, 8880 Kitakobayashi, Mibu, Shimotsugagun, Tochigi 321-0293, Japan
| | - Naohiko Anzai
- Department of Pharmacology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba 260-8670, JAPAN
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Yoshimura M, Flynn BP, Kershaw YM, Zhao Z, Ueta Y, Lightman SL, Conway-Campbell BL. Phase-shifting the circadian glucocorticoid profile induces disordered feeding behaviour by dysregulating hypothalamic neuropeptide gene expression. Commun Biol 2023; 6:998. [PMID: 37775688 PMCID: PMC10541449 DOI: 10.1038/s42003-023-05347-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 09/12/2023] [Indexed: 10/01/2023] Open
Abstract
Here we demonstrate, in rodents, how the timing of feeding behaviour becomes disordered when circulating glucocorticoid rhythms are dissociated from lighting cues; a phenomenon most commonly associated with shift-work and transmeridian travel 'jetlag'. Adrenalectomized rats are infused with physiological patterns of corticosterone modelled on the endogenous adrenal secretory profile, either in-phase or out-of-phase with lighting cues. For the in-phase group, food intake is significantly greater during the rats' active period compared to their inactive period; a feeding pattern similar to adrenal-intact control rats. In contrast, the feeding pattern of the out-of-phase group is significantly dysregulated. Consistent with a direct hypothalamic modulation of feeding behaviour, this altered timing is accompanied by dysregulated timing of anorexigenic and orexigenic neuropeptide gene expression. For Neuropeptide Y (Npy), we report a glucocorticoid-dependent direct transcriptional regulation mechanism mediated by the glucocorticoid receptor (GR). Taken together, our data highlight the adverse behavioural outcomes that can arise when two circadian systems have anti-phasic cues, in this case impacting on the glucocorticoid-regulation of a process as fundamental to health as feeding behaviour. Our findings further highlight the need for development of rational approaches in the prevention of metabolic dysfunction in circadian-disrupting activities such as transmeridian travel and shift-work.
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Affiliation(s)
- Mitsuhiro Yoshimura
- Translational Health Sciences, Bristol Medical School, University of Bristol Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK
- Department of Physiology, University of Occupational and Environmental Health, Japan 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Benjamin P Flynn
- Translational Health Sciences, Bristol Medical School, University of Bristol Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK
| | - Yvonne M Kershaw
- Translational Health Sciences, Bristol Medical School, University of Bristol Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK
| | - Zidong Zhao
- Translational Health Sciences, Bristol Medical School, University of Bristol Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK
| | - Yoichi Ueta
- Department of Physiology, University of Occupational and Environmental Health, Japan 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Stafford L Lightman
- Translational Health Sciences, Bristol Medical School, University of Bristol Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK
| | - Becky L Conway-Campbell
- Translational Health Sciences, Bristol Medical School, University of Bristol Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK.
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Nishimura H, Yoshimura M, Shimizu M, Sanada K, Sonoda S, Nishimura K, Baba K, Ikeda N, Motojima Y, Maruyama T, Nonaka Y, Baba R, Onaka T, Horishita T, Morimoto H, Yoshida Y, Kawasaki M, Sakai A, Muratani M, Conway-Campbell B, Lightman S, Ueta Y. Endogenous oxytocin exerts anti-nociceptive and anti-inflammatory effects in rats. Commun Biol 2022; 5:907. [PMID: 36064593 PMCID: PMC9445084 DOI: 10.1038/s42003-022-03879-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 08/23/2022] [Indexed: 12/26/2022] Open
Abstract
Oxytocin is involved in pain transmission, although the detailed mechanism is not fully understood. Here, we generate a transgenic rat line that expresses human muscarinic acetylcholine receptors (hM3Dq) and mCherry in oxytocin neurons. We report that clozapine-N-oxide (CNO) treatment of our oxytocin-hM3Dq-mCherry rats exclusively activates oxytocin neurons within the supraoptic and paraventricular nuclei, leading to activation of neurons in the locus coeruleus (LC) and dorsal raphe nucleus (DR), and differential gene expression in GABA-ergic neurons in the L5 spinal dorsal horn. Hyperalgesia, which is robustly exacerbated in experimental pain models, is significantly attenuated after CNO injection. The analgesic effects of CNO are ablated by co-treatment with oxytocin receptor antagonist. Endogenous oxytocin also exerts anti-inflammatory effects via activation of the hypothalamus-pituitary-adrenal axis. Moreover, inhibition of mast cell degranulation is found to be involved in the response. Taken together, our results suggest that oxytocin may exert anti-nociceptive and anti-inflammatory effects via both neuronal and humoral pathways.
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Affiliation(s)
- Haruki Nishimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.,Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Mitsuhiro Yoshimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan. .,Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
| | - Makiko Shimizu
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kenya Sanada
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Satomi Sonoda
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kazuaki Nishimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kazuhiko Baba
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.,Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Naofumi Ikeda
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.,Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yasuhito Motojima
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Takashi Maruyama
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yuki Nonaka
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Ryoko Baba
- Department of Anatomy (II), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Tatsushi Onaka
- Division of Brain and Neurophysiology, Department of Physiology, Jichi Medical University, Shimotsuke, Japan
| | - Takafumi Horishita
- Department of Anesthesiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hiroyuki Morimoto
- Department of Anatomy (II), School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yasuhiro Yoshida
- Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Makoto Kawasaki
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Akinori Sakai
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Masafumi Muratani
- Genome Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Becky Conway-Campbell
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Stafford Lightman
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Yoichi Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
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Lu Z, Cui D, Liu JYH, Jiang B, Ngan MP, Sakata I, Takemi S, Sakai T, Lin G, Chan SW, Rudd JA. The Actions of Centrally Administered Nesfatin-1 on Emesis, Feeding, and Locomotor Activity in Suncus murinus (House Musk Shrew). Front Pharmacol 2022; 13:858522. [PMID: 35462894 PMCID: PMC9019301 DOI: 10.3389/fphar.2022.858522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/15/2022] [Indexed: 11/13/2022] Open
Abstract
Nesfatin-1 is an anorectic peptide expressed in both peripheral tissues and brain areas involved in the regulation of feeding, emotion and emesis. The aim of the present study is to characterize the distribution of NUCB2/nesfatin-1 in Suncus murinus and to investigate the actions of nesfatin-1 to affect gastrointestinal contractility, emesis, food and water intake, and locomotor activity. The deduced amino acid sequence of S. murinus nesfatin-1 using in silico cloning showed high homology with humans and rodents. NUCB2 mRNA was detected throughout the entire brain and in the gastrointestinal tract, including the stomach and gut. Western blot analysis and immunohistochemistry confirmed the expression of nesfatin-1 protein in these regions. The NUCB2 mRNA levels in the hypothalamus, hippocampus and brainstem were significantly decreased, whereas that in the striatum were increased after 24 h starvation compared to ad libitum-fed animals (p < 0.05). In in vitro studies, nesfatin-1 (0.3–1,000 pM) failed to contract or relax the isolated gastric antrum and intestinal segments. In conscious, freely moving animals, intracerebroventricular administration of nesfatin-1 (1–50 pmol) induced emesis (p < 0.05) and suppressed 6-h cumulative food intake (p < 0.05), without affecting the latency to feeding. Nesfatin-1 (25 pmol, i.c.v.) decreased 24-h cumulative food and water intake by 28.3 and 35.4%, respectively (p < 0.01). No significant differences in locomotor activity were observed. In conclusion, NUCB2/nesfatin-1 might be a potent regulator of feeding and emesis in S. murinus. Further studies are required to elucidate the mechanism of actions of this peptide as a mediator linking the brainstem NUCB2/nesfatin-1 to forebrain system.
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Affiliation(s)
- Zengbing Lu
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- School of Health Sciences, Caritas Institute of Higher Education, Hong Kong, Hong Kong SAR, China
| | - Dexuan Cui
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Julia Yuen Hang Liu
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Bin Jiang
- School of Health Sciences, Caritas Institute of Higher Education, Hong Kong, Hong Kong SAR, China
| | - Man Piu Ngan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Ichiro Sakata
- Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - Shota Takemi
- Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - Takafumi Sakai
- Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - Ge Lin
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Sze Wa Chan
- School of Health Sciences, Caritas Institute of Higher Education, Hong Kong, Hong Kong SAR, China
- *Correspondence: Sze Wa Chan,
| | - John A. Rudd
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- The Laboratory Animal Services Centre, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
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5
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Sanada K, Yoshimura M, Ikeda N, Baba K, Nishimura H, Nishimura K, Nonaka Y, Maruyama T, Miyamoto T, Mori M, Conway-Campbell B, Lightman S, Kataoka M, Ueta Y. Chemogenetic activation of endogenous arginine vasopressin exerts anorexigenic effects via central nesfatin-1/NucB2 pathway. J Physiol Sci 2021; 71:18. [PMID: 34134629 PMCID: PMC10717637 DOI: 10.1186/s12576-021-00802-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/04/2021] [Indexed: 11/10/2022]
Abstract
We examined whether the chemogenetic activation of endogenous arginine vasopressin (AVP) affects central nesfatin-1/NucB2 neurons, using a transgenic rat line that was previously generated. Saline (1 mL/kg) or clozapine-N-oxide (CNO, 1 mg/mL/kg), an agonist for hM3Dq, was subcutaneously administered in adult male AVP-hM3Dq-mCherry transgenic rats (300-370 g). Food and water intake were significantly suppressed after subcutaneous (s.c.) injection of CNO, with aberrant circadian rhythmicity. The percentages of Fos expression in nesfatin-1/NucB2-immunoreactive neurons were significantly increased in the hypothalamus and brainstem at 120 min after s.c. injection of CNO. Suppressed food intake that was induced by chemogenetic activation of endogenous AVP was ablated after intracerebroventricularly administered nesfatin-1/NucB2-neutralizing antibody in comparison with vehicle, without any alteration of water intake nor circadian rhythmicity. These results suggest that chemogenetic activation of endogenous AVP affects, at least in part, central nesfatin-1/NucB2 neurons and may exert anorexigenic effects in the transgenic rats.
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Affiliation(s)
- Kenya Sanada
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
- Second Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807-8555, Japan
| | - Mitsuhiro Yoshimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS1 3NY, UK.
| | - Naofumi Ikeda
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807-8555, Japan
| | - Kazuhiko Baba
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807-8555, Japan
| | - Haruki Nishimura
- Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807-8555, Japan
| | - Kazuaki Nishimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Yuki Nonaka
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Takashi Maruyama
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Tetsu Miyamoto
- Second Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807-8555, Japan
| | - Masatomo Mori
- Research Institute for Metabolism and Obesity, Maebashi, 371-0049, Japan
| | - Becky Conway-Campbell
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS1 3NY, UK
| | - Stafford Lightman
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS1 3NY, UK
| | - Masaharu Kataoka
- Second Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807-8555, Japan
| | - Yoichi Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
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Yoshimura M, Ueta Y. Advanced genetic and viral methods for labelling and manipulation of oxytocin and vasopressin neurones in rats. Cell Tissue Res 2018; 375:311-327. [PMID: 30338378 DOI: 10.1007/s00441-018-2932-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 09/19/2018] [Indexed: 12/22/2022]
Abstract
Rats have been widely used as one of the most common laboratory animals for biological research, because their physiology, pathology, and behavioral characteristics are highly similar to humans. Recent developments in rat genetic modification techniques have now led to further their utility for a broad range of research questions, including the ability to specifically label individual neurones, and even manipulate neuronal function in rats. We have succeeded in generating several transgenic rat lines that enable visualization of specific neurones due to their expression of fluorescently-tagged oxytocin, vasopressin, and c-fos protein. Furthermore, we have been able to generate novel transgenic rat lines in which we can activate vasopressin neurones using optogenetic and chemogenetic techniques. In this review, we will summarize the techniques of genetic modification for labeling and manipulating the specific neurones. Successful examples of generating transgenic rat lines in our lab and usefulness of these rats will also be introduced. These transgenic rat lines enable the interrogation of neuronal function and physiology in a way that was not possible in the past, providing novel insights into neuronal mechanisms both in vivo and ex vivo.
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Affiliation(s)
- Mitsuhiro Yoshimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Yoichi Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
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7
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Ueta Y. [Nutrient Sensing and Anorexia via Neuropeptides]. YAKUGAKU ZASSHI 2018; 138:1017-1024. [PMID: 30068841 DOI: 10.1248/yakushi.17-00048-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Various neuropeptides play an essential role in the nutrient sensing mechanism and related homeostasis. Nesfatin-1 is a newly identified neuropeptide having anorectic activity, and nesfatin-1-containing neurons are widely distributed in the brain, including the hypothalamus and brain stem. Our previous study showed that dehydration-induced anorectic effects are mediated via the central nesfatin-1 pathway in rats. Our recent studies have also shown that peripheral anorectic peptides (cholecystokinin-8, glucagon-like peptide-1, and leptin) and an antineoplastic agent (cisplatin) caused inhibition of feeding via the central nesfatin-1 pathway in rats. Nesfatin-1-containing neurons in the central nervous system, in particular the hypothalamus and the brain stem, may mediate peripheral nutrient signals and regulate feeding behavior.
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Affiliation(s)
- Yoichi Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health
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8
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Akiyama Y, Yoshimura M, Nishimura K, Nishimura H, Sonoda S, Ueno H, Mitojima Y, Saito R, Maruyama T, Nonaka Y, Hashimoto H, Uezono Y, Hirata K, Ueta Y. Activation of central nesfatin-1/NucB2 after intraperitoneally administered cisplatin in rats. Biochem Biophys Res Commun 2017. [DOI: 10.1016/j.bbrc.2017.06.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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9
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Comparison of the induction of c-fos-eGFP and Fos protein in the rat spinal cord and hypothalamus resulting from subcutaneous capsaicin or formalin injection. Neuroscience 2017; 356:64-77. [PMID: 28527956 DOI: 10.1016/j.neuroscience.2017.05.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/28/2017] [Accepted: 05/09/2017] [Indexed: 12/20/2022]
Abstract
We evaluated whether a c-fos-enhanced green fluorescent protein (eGFP) transgenic rat line, which expresses the c-fos and eGFP fusion gene, can be useful for the study of nociceptive pathways and processing. Capsaicin solution (15%) or formalin (5%) was subcutaneously injected bilaterally into the hind paws (100μL per each paw) of adult male c-fos-eGFP transgenic or wild-type rats. Control rats were injected with ethanol or physiological saline respectively. Transgenic and wild-type rats were perfused at 1.5, 3 and 6h post injection, with some transgenic rats being perfused 24h post injection. A comparison of eGFP in transgenic rats and Fos-like immunoreactivity (LI) in wild-type rats was made in the dorsal spinal cord, paraventricular nucleus (PVN) and supraoptic nucleus (SON). Oxytocin-LI (OXT-LI) was carried out to examine the activation of OXT neurons in the PVN and SON. Following capsaicin or formalin treatment, eGFP was maximally expressed at 6h in the spinal cord and 3h in the PVN and SON, whereas, Fos-LI was maximally expressed at 1.5h in all the regions we analyzed. Induction of eGFP in the OXT neurons was observed after capsaicin or formalin treatment, while Fos-LI in the OXT neurons was observed only after formalin treatment. These results demonstrate that the peak induction of c-fos-eGFP following exposure to acute nociceptive stimuli was delayed by around 1.5-4.5h, but more sensitive than endogenous Fos, suggesting that the c-fos-eGFP rat line can be useful for the study of nociceptive pathways and processing.
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10
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Increased blood pressure in nesfatin/nuclebindin-2-transgenic mice. Hypertens Res 2017; 40:861-867. [DOI: 10.1038/hr.2017.61] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 03/01/2017] [Accepted: 03/07/2017] [Indexed: 12/14/2022]
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Dore R, Levata L, Lehnert H, Schulz C. Nesfatin-1: functions and physiology of a novel regulatory peptide. J Endocrinol 2017; 232:R45-R65. [PMID: 27754932 DOI: 10.1530/joe-16-0361] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 10/17/2016] [Indexed: 12/12/2022]
Abstract
Nesfatin-1 was identified in 2006 as a potent anorexigenic peptide involved in the regulation of homeostatic feeding. It is processed from the precursor-peptide NEFA/nucleobindin 2 (NUCB2), which is expressed both in the central nervous system as well as in the periphery, from where it can access the brain via non-saturable transmembrane diffusion. In hypothalamus and brainstem, nesfatin-1 recruits the oxytocin, the melancortin and other systems to relay its anorexigenic properties. NUCB2/nesfatin-1 peptide expression in reward-related areas suggests that nesfatin-1 might also be involved in hedonic feeding. Besides its initially discovered anorexigenic properties, over the last years, other important functions of nesfatin-1 have been discovered, many of them related to energy homeostasis, e.g. energy expenditure and glucose homeostasis. Nesfatin-1 is not only affecting these physiological processes but also the alterations of the metabolic state (e.g. fat mass, glycemic state) have an impact on the synthesis and release of NUCB2 and/or nesfatin-1. Furthermore, nesfatin-1 exerts pleiotropic actions at the level of cardiovascular and digestive systems, as well as plays a role in stress response, behavior, sleep and reproduction. Despite the recent advances in nesfatin-1 research, a putative receptor has not been identified and furthermore potentially distinct functions of nesfatin-1 and its precursor NUCB2 have not been dissected yet. To tackle these open questions will be the major objectives of future research to broaden our knowledge on NUCB2/nesfatin-1.
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Affiliation(s)
- Riccardo Dore
- Department of Internal Medicine ICenter of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
| | - Luka Levata
- Department of Internal Medicine ICenter of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
| | - Hendrik Lehnert
- Department of Internal Medicine ICenter of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
| | - Carla Schulz
- Department of Internal Medicine ICenter of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
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Nakata M, Gantulga D, Santoso P, Zhang B, Masuda C, Mori M, Okada T, Yada T. Paraventricular NUCB2/Nesfatin-1 Supports Oxytocin and Vasopressin Neurons to Control Feeding Behavior and Fluid Balance in Male Mice. Endocrinology 2016; 157:2322-32. [PMID: 27105386 DOI: 10.1210/en.2015-2082] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Nesfatin-1, derived from nucleobindin-2 (NUCB2), is expressed in the hypothalamus, including the paraventricular nucleus (PVN), an integrative center for energy homeostasis. However, precise role of the NUCB2/nesfatin-1 in PVN remains less defined. The present study aimed to clarify physiological and/or pathophysiological roles of endogenous NUCB2/nesfatin-1 in PVN by using adeno-associated virus vectors encoding short hairpin RNAs targeting NUCB2 in mice. PVN-specific NUCB2 knockdown primarily increased food intake and decreased plasma oxytocin level specifically in light phase, leading to increased body weight gain without affecting energy expenditure. Furthermore, high-salt diet increased the systolic blood pressure, plasma arginine vasopressin (AVP) and AVP mRNA expression in PVN, and all these changes were blunted by PVN-specific NUCB2 knockdown. These results reveal that the endogenous NUCB2/nesfatin-1 in PVN regulates PVN AVP and oxytocin and consequently the fluid and energy balance.
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Affiliation(s)
- Masanori Nakata
- Division of Integrative Physiology (M.N., D.G., P.S., B.Z., T.Y.), Jichi Medical University School of Medicine, Shimotsuke, Tochigi 329-0498, Japan; Department of Biochemistry and Molecular Biology (C.M., T.O.), Division of Gene Therapy, Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan; Metabolic and Obese Research Institute (M.M.), Maebashi, Gunma 371-0037, Japan; and Department of Developmental Physiology (T.Y.), Division of Adaptation Development, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
| | - Darambazar Gantulga
- Division of Integrative Physiology (M.N., D.G., P.S., B.Z., T.Y.), Jichi Medical University School of Medicine, Shimotsuke, Tochigi 329-0498, Japan; Department of Biochemistry and Molecular Biology (C.M., T.O.), Division of Gene Therapy, Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan; Metabolic and Obese Research Institute (M.M.), Maebashi, Gunma 371-0037, Japan; and Department of Developmental Physiology (T.Y.), Division of Adaptation Development, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
| | - Putra Santoso
- Division of Integrative Physiology (M.N., D.G., P.S., B.Z., T.Y.), Jichi Medical University School of Medicine, Shimotsuke, Tochigi 329-0498, Japan; Department of Biochemistry and Molecular Biology (C.M., T.O.), Division of Gene Therapy, Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan; Metabolic and Obese Research Institute (M.M.), Maebashi, Gunma 371-0037, Japan; and Department of Developmental Physiology (T.Y.), Division of Adaptation Development, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
| | - Boyang Zhang
- Division of Integrative Physiology (M.N., D.G., P.S., B.Z., T.Y.), Jichi Medical University School of Medicine, Shimotsuke, Tochigi 329-0498, Japan; Department of Biochemistry and Molecular Biology (C.M., T.O.), Division of Gene Therapy, Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan; Metabolic and Obese Research Institute (M.M.), Maebashi, Gunma 371-0037, Japan; and Department of Developmental Physiology (T.Y.), Division of Adaptation Development, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
| | - Chiaki Masuda
- Division of Integrative Physiology (M.N., D.G., P.S., B.Z., T.Y.), Jichi Medical University School of Medicine, Shimotsuke, Tochigi 329-0498, Japan; Department of Biochemistry and Molecular Biology (C.M., T.O.), Division of Gene Therapy, Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan; Metabolic and Obese Research Institute (M.M.), Maebashi, Gunma 371-0037, Japan; and Department of Developmental Physiology (T.Y.), Division of Adaptation Development, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
| | - Masatomo Mori
- Division of Integrative Physiology (M.N., D.G., P.S., B.Z., T.Y.), Jichi Medical University School of Medicine, Shimotsuke, Tochigi 329-0498, Japan; Department of Biochemistry and Molecular Biology (C.M., T.O.), Division of Gene Therapy, Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan; Metabolic and Obese Research Institute (M.M.), Maebashi, Gunma 371-0037, Japan; and Department of Developmental Physiology (T.Y.), Division of Adaptation Development, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
| | - Takashi Okada
- Division of Integrative Physiology (M.N., D.G., P.S., B.Z., T.Y.), Jichi Medical University School of Medicine, Shimotsuke, Tochigi 329-0498, Japan; Department of Biochemistry and Molecular Biology (C.M., T.O.), Division of Gene Therapy, Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan; Metabolic and Obese Research Institute (M.M.), Maebashi, Gunma 371-0037, Japan; and Department of Developmental Physiology (T.Y.), Division of Adaptation Development, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
| | - Toshihiko Yada
- Division of Integrative Physiology (M.N., D.G., P.S., B.Z., T.Y.), Jichi Medical University School of Medicine, Shimotsuke, Tochigi 329-0498, Japan; Department of Biochemistry and Molecular Biology (C.M., T.O.), Division of Gene Therapy, Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8603, Japan; Metabolic and Obese Research Institute (M.M.), Maebashi, Gunma 371-0037, Japan; and Department of Developmental Physiology (T.Y.), Division of Adaptation Development, National Institute for Physiological Sciences, Okazaki, Aichi 444-8585, Japan
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Yoshimura M, Uezono Y, Ueta Y. Anorexia in human and experimental animal models: physiological aspects related to neuropeptides. J Physiol Sci 2015; 65:385-95. [PMID: 26123258 PMCID: PMC10717229 DOI: 10.1007/s12576-015-0386-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 06/16/2015] [Indexed: 01/20/2023]
Abstract
Anorexia, a loss of appetite for food, can be caused by various physiological and pathophysiological conditions. In this review, firstly, clinical aspects of anorexia nervosa are summarized in brief. Secondly, hypothalamic neuropeptides responsible for feeding regulation in each hypothalamic nucleus are discussed. Finally, three different types of anorexigenic animal models; dehydration-induced anorexia, cisplatin-induced anorexia and cancer anorexia-cachexia, are introduced. In conclusion, hypothalamic neuropeptides may give us novel insight to understand and find effective therapeutics strategy essential for various kinds of anorexia.
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Affiliation(s)
- Mitsuhiro Yoshimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807-8555 Japan
| | - Yasuhito Uezono
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, 104-0045 Japan
| | - Yoichi Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, 807-8555 Japan
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