The effect of exposure to chemical substance with bacterial toxin on the development of Th1/Th2 balance in infant mice.
Project/Area Number |
19590612
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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 |
Hygiene
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Research Institution | National Institute for Environmental Studies |
Principal Investigator |
YAMAMOTO Shoji National Institute for Environmental Studies, 環境リスク研究センター, 主任研究員 (40230552)
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Co-Investigator(Kenkyū-buntansha) |
FUJIMAKI Hidekazu 独立行政法人国立環境研究所, 環境リスク研究センター, 室長 (00124355)
HIYOSHI Kyoko 静岡県立大学, 看護学部, 講師 (90405580)
FUKUSHIMA Atsushi 独立行政法人国立環境研究所, 環境リスク研究センター, NIESポスドクフェロー (10442716)
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Project Period (FY) |
2007 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2007: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
Keywords | 環境生理 / 小児健康影響 / アレルギー / 感染症 / 細菌 / 免疫学 / 有害化学物質 |
Research Abstract |
The aims of the present study were to clarify whether the respiratory tract infection and stimulation can influence development of Th1 immune response and allergic reaction or not, and to investigate the effects of co-stimulation of the respiratory tract infectious agent with toluene which is one of the causative factors for chemical sensitivity and sick house syndrome can affect Th1/Th2 balance in infant mice using an allergic mouse model. Our findings indicate that (1) respiratory tract infection and stimulation with cell wall component of gram positive bacteria, peptidoglycan (PGN) does not affect development of Th1 immune response and allergic reaction in infant mice with ovalbumin (OVA) immunization ; (2) subcutaneous inoculation with BCG vaccine enhanced Th1 response via increased plasma IgG2a antibody and IFN-γexpression in lung and spleen of OVA immunized mice (this finding clearly shows that although BCG inoculation did not induce respiratory tract stimulation, it can be used for induction of Th1 response) ; (3) low level toluene exposure only from fetal to neonatal stage may enhance the systemic Th2 function in infant mice, however, the co-exposure of low level toluene with PGN shifted Th1/Th2 immunity to suppressive direction ; (4) in addition, the co-exposure of low level toluene with PGN in infant stage altered both Th1 and Th2 dependent blood Ig antibody level in 3 week-old mice.
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Report
(4 results)
Research Products
(38 results)
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[Journal Article] Up-regulation of neurotrophin-related gene expression in mouse hippocampus following low-level toluene exposure2010
Author(s)
in-Shwe, T.T., Tsukahara, S., Yamamoto, S., Fukushima, A., Kunugita, N., Arashidani, K., Fujimaki, H.
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Journal Title
Neuro. Toxicol. 31(1)
Pages: 85-93
Related Report
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[Journal Article] Suppression of Th1-and Th2-type immune responses in infant mouse spleen after prenatal and postnatal exposure to low-level toluene and peptidoglycan2009
Author(s)
Yamamoto, S., Win-Shwe, T.T., Yoshida, Y., Kunugita, N., Arashidani, K., Fujimaki, H.
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Journal Title
Inhal. Toxicol. 21(9)
Pages: 793-802
Related Report
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[Journal Article] Children's immunology, what can we learn from animal studies (2): Modulation of systemic Th1/Th2 immune response in infant mice after prenatal exposure to low-level toluene and toll-like receptor (TLR) 2 ligand2009
Author(s)
Yamamoto, S., Win-Shwe, T.T., Yoshida, Y., Kunugita, N., Arashidani, K., Fujimaki, H.
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Journal Title
Related Report
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[Journal Article] Modulation of systemic Th1/Th2 immune response in infant mice after prenatal exposure to low-level toluene and toll-like receptor(TLR)2 ligand2009
Author(s)
Yamamoto, S., Win-Shwe, T.T., Yoshida, Y., Kunugita, N., Arashidani, K., Fujimaki, H.
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Journal Title
J.Toxicol.Sci. 34
Pages: 341-348
NAID
Related Report
Peer Reviewed
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[Journal Article] Suppression of Th1- and Th2- type immune responses in infant mouse spleen after prenatal and postnatal exposure to low-level toluene and peptidoglycan2009
Author(s)
Yamamoto, S., Win-Shwe, T.T., Yoshida, Y., Kunugita, N., Arashidani, K., Fujimaki, H.
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Journal Title
Inhal.Toxicol. 21
Pages: 793-802
Related Report
Peer Reviewed
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[Journal Article] Establishment of a Mouse Model to Asses Brain Neurotransmitter Level and Leaning Performance Simultaneously Following Toxic Chemical Exposure: Using in vivo Microdialysis and Schedule-Controlled Operant Behavior2008
Author(s)
Win-Shwe, T.T., Hojo, R., Mitsushima, D., Nakajima, D., Yamamoto, S., Fujimaki, H.
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Journal Title
J. UOEH. 31(1)
Pages: 1-11
Related Report
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[Journal Article] Toluene induces rapid and reverse of hippocampal glutamate and taurine neurotransmitter levels in mice2007
Author(s)
Win-Shwe, T.T., Mitsushima, D., Nakajima, D., Ahmed, S., Yamamoto, S., Tsukahara, S., Kakeyama, M., Goto, S., Fujimaki, H.
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Journal Title
Toxicol. Lett. 168
Pages: 76-82
Related Report
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[Journal Article] Effect of long-term exposure to low-level toluene on airway inflammatory response in mice2007
Author(s)
Fujimaki, H., Yamamoto, S., Win-Shwe, T.T., Hojo, R., Sato, F., Kunugita, N., Arashidani, K.
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Journal Title
Toxicol. Lett. 168
Pages: 132-139
Related Report
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[Journal Article] Effects of low-level formaldehyde exposure on synaptic plasticity related gene expression in the hippocampus of immunized mice2007
Author(s)
Ahmed, S., Tsukahara, S., Win-Shwe, T.T., Yamamoto, S., Kunugita, N., Arashidani, K., Fujimaki, H.
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Journal Title
J. Neuroimmunol. 186
Pages: 104-111
Related Report
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[Journal Article] Modulation of neurological related allergic reaction in mice exposed to low-level toluene2007
Author(s)
Win Shwe, T.T., Yamamoto, S., Nakajima, D., Furuyama, A., Fukushima, A., Ahmed, S., Goto, S., Fujimaki, H.
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Journal Title
Toxicol. Appl. Pharmacol. 222
Pages: 17-24
Related Report
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[Journal Article] Athymic nude mice are insensitive to low-level toluene-induced up-regulation of memory-related gene expressions in the hippocampus2007
Author(s)
Win-Shwe, T.T., Tsukahara, S., Ahmed, S., Fukushima, A., Yamamoto, S., Kakeyama, M., Nakajima, D., Goto, S., Kobayashi, T., Fujimaki, H.
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Journal Title
Neurotoxicology 28
Pages: 957-964
Related Report
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[Journal Article] Increased hippocampal mRNA expression of neuronal synaptic plasticity related genes in mice chronically exposed to toluene at a low-level human occupational-exposure2007
Author(s)
Ahmed, S., Win-Shwe, T.T., Yamamoto, S., Tsukahara, S., Kunugita, N., Arashidani, K., Fujimaki, H.
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Journal Title
Neurotoxicology 28
Pages: 168-174
Related Report
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