Physiological function of PACAP in the teleost fish
Project/Area Number |
16570051
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Morphology/Structure
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Research Institution | University of Toyama |
Principal Investigator |
MATSUDA Kouhei University of Toyama, Graduate School of Science and Engineering, Associate Professor, 大学院・理工学研究部, 助教授 (60222303)
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Project Period (FY) |
2004 – 2005
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Project Status |
Completed (Fiscal Year 2005)
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Budget Amount *help |
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2005: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2004: ¥1,100,000 (Direct Cost: ¥1,100,000)
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Keywords | Teleost / Neuropeptides / PACAP / Brain / Pituitary / feeding behavior / anorexigenic activity / 摂食制御作用 / 腺性下垂体ホルモン / PACAP受容体 / PACAP酵素免疫測定法 / 周年変化 / 摂食調節作用 |
Research Abstract |
The neuropeptide pituitary adenylate cyclase-activating polypeptide (PACAP) could play many roles in mammals. In this study, we used immunochemical techniques to examine the histological and quantitative distribution of PACAP in the central nervous system (CNS) of teleost fish. In addition, high performance liquid chromatographic (HPLC) analysis was performed to characterize the form of PACAP present, while the relationship between PACAP and adenohypophysial hormones was also determined immunohistochemically. We also used enzyme immunoassay to determine the quantity of PACAP in the fish brain, in conjunction with the body mass and gonad somatic index (GSI) of fish. We finally investigated the effects of intracerebroventricular (ICV) and intraperitoneal (IP) administration of synthetic PACAP and related peptides on food intake in the fish. In adult fish, PACAP-like immunoreactive (PACAP-LI) nerve fibers and endings were identified in both the neurohypophysis and adenohypophysis in close
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proximity to pituitary cells containing immunoreactive hormones such as prolactin, somatolactin, the N-terminal peptide of proopiomelanocortin, and N-acetyl endorphin. PACAP-LI nerve fibers were also identified close to immunoreactive GH cells in the pituitary of young fish. The concentration of immunoreactive PACAP in whole brain ranged from 100 to 800 pmol/g wet weight, in fish with weighing 70-480 g. A negative correlation was found between the concentration of immunoreactive PACAP in the whole brain and body weight, but there was no relation between the former and GSI. In reverse-phase HPLC experiments, the predominant form of immunoreactive PACAP eluted closely with synthetic fish PACAP38, while PACAP27-like immunoreactivity was negligible. Cumulative food intake was significantly decreased by ICV injection of PACAP during a 60-min observation period after treatment. IP administration of PACAP also induced a significant decrease in food intake during a 60-min observation period after treatment. Semiquantitative analysis revealed that the expression of mRNAs for PACAP and the PAC_1 receptor was significantly increased by excessive feeding (daily food supply at【greater than or equal】5% of the body weight [BW]) for 7 days. ICV administration of PACAP induced a significant decrease in locomotor activity during the 60-min post-treatment observation period. Semiquantitative analysis revealed that the expression of CRH mRNA was significantly increased by excessive feeding for 7 days. ICV administration of PACAP at a dose sufficient to suppress food intake induced a significant increase in the expression of CRH mRNA. We also examined the effect of α-helical CRH_<9-41>, a CRH antagonist, on the anorexigenic action of PACAP in the goldfish. The inhibitory effect of PACAP was completely suppressed by treatment with α-helical CRH_<9-41>. These results indicate that PACAP also plays many roles in fish. Less
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Report
(3 results)
Research Products
(54 results)
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[Journal Article] Pituitary adenylate cyclase-activating polypeptide (PACAP) decreases neuronal cell death after focal ischemia associated with interleukin-6 (IL-6) signaling.2006
Author(s)
Ohtaki H., Nakamachi T., Dohi K., Aizawa Y.Takaki A., Hodoyama K., Yofu S., hashimoto H, Shintani N., Baba A., Kopf M., Iwakura Y., Matsuda K., Arimura A., Shioda S.
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Journal Title
Proc.Natl.Acad.Sci. 103
Pages: 7488-7493
Description
「研究成果報告書概要(和文)」より
Related Report
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[Journal Article] Central administration of melanin-concentrating hormone (MCH) suppresses food intake, but not locomotor activity, in the goldfish, Carassius auratus.2006
Author(s)
Matsuda K., Shimakura S.I., Maruyama K., Miura T., Uchiyama M., Kawauchi H., Shioda S., Takahashi A.
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Journal Title
Neurosci Lett 399
Pages: 259-263
Description
「研究成果報告書概要(和文)」より
Related Report
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[Journal Article] Regulation of food intake by acyl and des-acyl ghrelins in the goldfish.2006
Author(s)
Matsuda, K., Miura, T., Kaiya, H., Maruyama, K., Shimakura, S.I., Uchiyama, M., Kangawa, K., Shioda, S.
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Journal Title
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Pituitary adenylate cyclase-activating polypeptide (PACAP) decreases neuronal cell death after focal ischemia associated with inteleukin-6 (IL-6) signaling.2006
Author(s)
Ohtaki, H., Nakamachi, T., Dohi, K., Aizawa, Y., Takaki, A., Hodoyama, K., Yofu, S., Hashimoto, H., Shintani, N., Baba, A., Kopf, M., Iwakura, Y., Matsuda, K., Arimura, A., Shioda, S.
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Journal Title
Proc.Natl.Acad.Sci.USA 103
Pages: 7488-7493
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Central administration of melanin-concentrating hormone (MCH) suppresses food intake, but not locomotor activity, in the goldfish, Carassius auratus.2006
Author(s)
Matsuda, K., Shimakura, S.I., Maruyama, K., Miura, T., Uchiyama, M., Kawauchi, H., Shioda, S., Takahashi, A.
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Journal Title
Neurosci.Lett. 399
Pages: 259-263
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Relationship between anorexigenic action of pituitary adenylate cyclase-activating polypeptide (PACAP) and that of corticotropin-releasing hormone (CRH) in the goldfish, Carassius, auratus.2006
Author(s)
Maruyama, K., Miura, T., Uchiyama, M., Shioda, S., Matsuda, K.
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Journal Title
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Regulation by orexin of feeding behaviour and locomotor activity in the goldfish.2006
Author(s)
Nakamachi, T., Matsuda, K., Maruyama, K., Miura, T., Uchiyama, M., Funahashi, H., Sakurai, T., Shioda, S.
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Journal Title
J.Neuroendocrinol. 18
Pages: 290-297
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Stimulatory effect of n-octanoylated ghrelin on locomotor activity in the goldfish, Carassius auratus.2006
Author(s)
Matsuda, K., Miura, T., Kaiya, H., Maruyama, K., Uchiyama, M., Kangawa, K., Shioda, S.
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Journal Title
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Central administration of melanin-concentrating hormone (MCH) suppresses food intake, but not locomotor activity, in the goldfish, Carassius auratus.2006
Author(s)
Matsuda, K., Shimakura, S.I., Maruyama, K., Miura, T., Uchiyama, M., Kawauchi, H., Shioda, S., Takahashi, A.
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Journal Title
Neuroscience Letters (In press)
Related Report
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[Journal Article] Relationship between anorexigenic action of pituitary adenylate cyclase-activating polypeptide (PACAP) and that of corticotropin-releasing hormone (CRH) in the goldfish, Carassius auratus.2006
Author(s)
Maruyama, K., Miura, T., Uchiyama, M., Shioda, S., Matsuda, K.
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Journal Title
Related Report
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[Journal Article] Regulation by orexin of feeding behavior and locomotor activity in the goldfish.2006
Author(s)
Nakamachi, T., Matsuda, K., Maruyama, K., Miura, T., Uchiyama, M., Funahashi, H., Sakurai, T., Shioda, S.
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Journal Title
Journal of Neuroendocrinology (In press)
Related Report
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[Journal Article] Stimulatory effect of n-octanoylated ghrelin on locomotor activity in the goldfish, Carassius auratus.2006
Author(s)
Matsuda, K., Miura, T., Kaiya, H., Maruyama, K., Uchiyama, M., Kangawa, K., Shioda, S.
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Journal Title
Related Report
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[Journal Article] Anorexigenic action of pituitary adenylate cyclase-activating polypeptide (PACAP) in the goldfish : feeding-induced changes in the expression of mRNAs for PACAP and its receptors in the brain, and locomotor response to central injection.2005
Author(s)
Matsuda, K., Maruyama, K., Miura, T., Uchiyama, M., Shioda, S.
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Journal Title
Neurosci.Lett. 386
Pages: 9-13
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Inhibitory effects of pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal peptide (VIP) on food intake in the goldfish, Carassius auratus.2005
Author(s)
Matsuda, K., Marayama, K., Nakamachi, T., Miura, T., Uchiyama, M., Shioda, S.
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Journal Title
Peptides 26
Pages: 1611-1616
Description
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[Journal Article] Immunohistochemical observation of pituitary adenylate cyclase-activating polypeptide (PACAP) and adenohypophysial hormones in the pituitary of a teleost, Uranoscopus japonicus.2005
Author(s)
Matsuda, K., Nagano, Y., Uchiyama, M., Takahashi, A., Kawauchi, H.
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Journal Title
Zool.Sci. 22
Pages: 71-76
NAID
Description
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[Journal Article] Pituitary adenylate cycles-activating polypeptide (PACAP)-like immunoreactivity in the brain of a teleost, Uranoscopus japonicus : immunohistochemial relationship between PACAP and adenohypophysial hormones.2005
Author(s)
Matsuda, K., Nagano, Y., Uchiyama, M., Onoue, S., Takahashi, A., Kawauchi, H., Shioda, S.
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Journal Title
Regul.Pept. 126
Pages: 129-136
Description
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[Journal Article] Orexin-1 receptor expression after global ischemia in mice.2005
Author(s)
Nakamachi, T., Ohtaki, H., Yin, L., Dohi, K., Endo, S., Kudo, Y., Funahashi, H., Matsuda, K., Shioda, S.
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Journal Title
Regul.Pept. 126
Pages: 49-54
Description
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[Journal Article] Plasma aldosterone, angiotensin II and arginine vasotocin concentrations in the toad, Bufo marinus, following osmotic treatments.2005
Author(s)
Konno, N., Hyodo, S., Takei, Y., Matsuda, K., Uchiyama, M.
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Journal Title
Gen.Comp.Endocrinol. 140
Pages: 86-93
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Anorexigenic action of pituitary adenylate cyclase-activating polypeptide (PACAP) in the goldfish : feeding-induced changes in the expression of mRNAs for PACAP and its receptors in the brain, and locomotor response to central injection.2005
Author(s)
Matsuda, K., Maruyama, K., Miura, T., Uchiyama, M., Shioda, S.
-
Journal Title
Neuroscience Letters 386
Pages: 9-13
Related Report
-
[Journal Article] Inhibitory effects of pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal peptide (VIP) on food intake in the goldfish, Carassius auratus.2005
Author(s)
Matsuda, K., Maruyama, K., Nakamachi, T., Miura, T., Uchiyama, M., Shioda, S.
-
Journal Title
Peptides 26
Pages: 1611-1616
Related Report
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[Journal Article] Immunohistochemical observation of pituitary adenylate cyclase-activating polypeptide (PACAP) and adenohypophysial hormones in the pituitary of a teleost, Uranoscopus japonicus.2005
Author(s)
Matsuda, K., Nagano, Y., Uchiyama, M., Takahashi, A., Kawauchi, H.
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Journal Title
Zoological Science 22
Pages: 71-76
NAID
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[Journal Article] Pituitary adenylate cyclase-activating polypeptide (PACAP)-like immunoreactivity in the brain of a teleost, Uranoscopus japonicus : immunohistochemical relationship between PACAP and adenohypophysial hormones.2005
Author(s)
Matsuda, K., Nagano, Y., Uchiyama, M., Onoue, S., Takahashi, A., Kawauchi, H., Shioda, S.
-
Journal Title
Regulatory Peptides 126
Pages: 129-136
Related Report
-
[Journal Article] Orexin-1 receptor expression after global ischemia in mice.2005
Author(s)
Nakamachi, T., Ohtaki, H., Yin, L., Dohi, K., Endo, S., Kudo, Y., Funahashi, H., Matsuda, K., Shioda, S.
-
Journal Title
Regulatory Peptides 126
Pages: 49-54
Related Report
-
[Journal Article] Inhibitory effects of pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal peptide (VIP) on food intake in the goldfish, Carassius auratus.2005
Author(s)
Matsuda, K.Maruyama, K., Nakamachi, T., Miura, T., Uchiyama, M., Shioda, S.
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Journal Title
Related Report
-
[Journal Article] Orexin-1 receptor expression after global ischemia in mice.2005
Author(s)
Nakamachi, T., Ohtaki, H., Yin, L., Dohi, K., Endo, S., Kudo, Y., Funabashi, H., Matsuda, K., Shioda, S.
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Journal Title
Regulatory Peptides 126
Pages: 49-54
Related Report
-
[Journal Article] Plasma aldosterone, angiotensin II and arginine vasotocin concentrations in the toad, Bufo marinus, following osmotic treatments.2005
Author(s)
Konno, N., Hyodo, S., Takei, Y., Matsuda, K., Uchiyama, M.
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Journal Title
General and Comparative Endocrinology 140
Pages: 86-93
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[Journal Article] Distribution of PACAP and its binding sites in the brain of a teleost, the stargazer.2004
Author(s)
Matsuda, K., Nagano, Y., Uchiyama, M., Onoue, S., Kashimoto, K., Takahashi, A., Kawauchi, H.
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Journal Title
Trends in Comparative Endocrinology
Pages: 282-285
Description
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[Journal Article] Ghrelin stimulates food intake in the goldfish.2004
Author(s)
Matsuda, K., Miura, T., Hagiwara, T., Uchiyama, M., Kaiya, H., Kangawa, K.
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Journal Title
Trends in Comparative Endocrinology
Pages: 286-288
Description
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[Journal Article] Distribution of PACAP and its binding sites in the brain of a teleost, the stargazer.2004
Author(s)
Matsuda, K., Nagano, Y., Uchiyama, M., Onoue, S., Kashimoto, K., Takahashi, A., Kawauchi, H.
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Journal Title
Trends in Comparative Endocrinology 1
Pages: 282-285
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