Involvement of host ADAR in biased hypermutation of intracelebral measles virus causing SSPE
Project/Area Number |
14570271
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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 |
Virology
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Research Institution | Osaka City University |
Principal Investigator |
OGURA Hisashi Osaka City University, Graduate School of Medicine, Professor, 大学院・医学研究科, 教授 (10115222)
|
Co-Investigator(Kenkyū-buntansha) |
AYATA Minoru Osaka City University, Graduate School of Medicine, Research associate, 大学院・医学研究科, 助手 (90222702)
SETO Yoshiyuki Osaka City University, Graduate School of Medicine, Research associate, 大学院・医学研究科, 助手 (70270759)
松永 勇 大阪市立大学, 大学院・医学研究科, 講師 (00254425)
|
Project Period (FY) |
2002 – 2004
|
Project Status |
Completed (Fiscal Year 2004)
|
Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2004: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2003: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2002: ¥1,700,000 (Direct Cost: ¥1,700,000)
|
Keywords | Subacute sclerosing panencephalitis / SSPE virus / Measles virus / Biased hypermutation / ADAR |
Research Abstract |
It has been clarified that SSPE (subacute sclerosing panencephalitis) viruses, measles virus defective variants isolated from brains of SSPE patients, acquire biased hypermutation in their M genes, in which frequent replacements from adenine to guanine in genome sense are found. Although in recent years adenosine deaminases that act on RNAs (ADARs) might be involved in its phenomenon, there has not yet been any report showing direct evidences that ADAR causes biased hypermutation of measles virus M gene. Therefore, we examined if ADAR constitutively expressed in neural cells from the externally introduced gene can induce biased hypermutation in the measles virus infected cells. We established A172/ADAR+ cells, an ADAR constitutively expressed cell line using A172 cells, derived from human glioblastoma. These cells were infected rMV323 virus (derived from the Ichinose B strain cDNA inserted with GFP gene) or Edm-B virus (derived from the Edmonston-B strain cDNA) and incubated at 35℃ for 1 week. One half of the infected A172/ADAR+ cells were cocultured with 5 x 10^5 fresh A172/ADAR+ cells and further incubated. The other half of the infected cells were stocked at -80℃ for viral RNA analysis (RT-PCR and direct sequencing of the M gene). This way of passage were repeated 10 times. Amplification of the M gene cDNA was detected in samples of the passage 1 to 2 of rMV323 virus and of the passage 1 to 7 of Edm-B virus. At present, however, positive mutation is not suggested in the M gene.
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Report
(4 results)
Research Products
(45 results)
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[Journal Article] Probe typing of Noroviruses detected in Osaka City, Japan2005
Author(s)
Iritani, N., Seto, Y., Kubo, H., Haruki, K., Murakami, T., Kaida, A., Ayata, M., Ogura, H.
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Journal Title
Japanese Journal of Infectious diseases 58
Pages: 53-54
Description
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[Journal Article] Genotyping of Norovirus strains detected in outbreaks between April 2002 and March 2003 in Osaka City, Japan2005
Author(s)
Seto, Y., Iritani, N., Kubo, H., Kaida, A., Murakami, T., Haruki, K., Nishio, O., Ayata, M., Ogura, H.
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Journal Title
Microbiology and Immunology 49
Pages: 275-283
NAID
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[Journal Article] Infection of different cell lines of neural origin with subacute sclerosing panencephalitis (SSPE) virus2004
Author(s)
Ishida, M., Ayata, M., Shingai, M., Katayama, Y., Matsunaga, I., Seya, T., Yanagi, Y., Yamano, T., Ogura, H.
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Journal Title
Microbiology and Immunology 48
Pages: 277-287
NAID
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[Journal Article] Substrate Recognition and molecular mechanism of fatty acid hydroxylation by cytochrome P450 from Bacillus subtilis2003
Author(s)
Lee, D-S., Yamada, A., Sugimoto, H., Matsunaga, I., Ogura, H., Ichihara, K., Adachi, S., Park, S-Y., Shiro, Y.
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Journal Title
Journal of Biological Chemistry 278
Pages: 9761-9767
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[Journal Article] Prevalence of Norwalk virus infections in viral gastroenteritis among children in Osaka City, Japan2003
Author(s)
Iritani, N., Seto, Y., Kubo, H., Murakami, T., Haruki, K., Ayata, M., Ogura, H.
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Journal Title
Journal of Clinical Microbiology 41
Pages: 1756-1759
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[Journal Article] Receptor use by vesicular stomatitis virus pseudotypes with glycoproteins of defective variants of measles virus isolated from brains of patients with subacute sclerosing panencephalitis2003
Author(s)
Shingai, M., Ayata, M., Ishida, H., Matsunaga, I., Katayama, Y., Seya, T., Tatsuo, H., Yanagi, Y., Ogura, H.
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Journal Title
Journal of General Virology 84
Pages: 2133-2143
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[Journal Article] Mechanism of up-regulation of human Toll-like receptor (TLR) 3 secondary to infection of measles virus attenuated strains2003
Author(s)
Tanabe, M., Kurita-Taniguchi, M., Takeuchi, K., Takeda, M., Ayata, M., Ogura, H., Matsumoto, M., Seya, T.
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Journal Title
Biochemical and Biophysical Research Communications 311
Pages: 39-48
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[Journal Article] The prevalence of Norwalk virus infections in outbreaks of acute gastroenteritis observed during the 1999-2000 season in Osaka City, Japan2002
Author(s)
Iritani, N., Seto, Y., Haruki, K., Kubo, H., Ayata, M., Ogura, H.
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Journal Title
Journal of Medical Virology 66
Pages: 131-138
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[Journal Article] Comparison of the neuropathogenicity of two SSPE sibling viruses of the Osaka-2 strain isolated with Vero and B95a cells2002
Author(s)
Ito, N., Ayata, M., Shingai, M., Furukawa, K., Seto, T., Matsunaga, I., Muraoka, M., Ogura, H.
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Journal Title
Journal of Neurovirology 8
Pages: 6-13
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[Journal Article] Enzymatic reaction of hydrogen peroxide-dependent peroxygenase cytochrome P450s : kinetic deuterium isotope effects and analyses by resonance Raman spectroscopy2002
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Matsunaga, I., Yamada, A., Lee, D-S., Obayashi, E., Fujiwara, N., Kobayashi, K., Ogura, H., Shiro, Y.
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Journal Title
Biochemistry 46
Pages: 1886-1892
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[Journal Article] Delineation of the genus Sphingomonas Yabuuchi et al. 1990VP2002
Author(s)
Yabuuchi, E., Kosako, Y., Fujiwara, N., Naka, T., Matsunaga, I., Ogura, H., Kobayashi, K.
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Journal Title
International Journal of Systematic and Evolutionary Microbiology 52
Pages: 1485-1496
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[Journal Article] Alterations and diversity in the cytoplasmic tail of the fusion protein of subacute sclerosing panencephalitis virus strains isolated in Osaka, Japan2002
Author(s)
Ning, X-J., Ayata, M., Kimura, M., Komase, K., Furukawa, K., Seto, T., Ito, N., Shingai, M., Matsunaga, I., Yamano, T., Ogura, H.
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Journal Title
Virus Research 86
Pages: 123-131
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[Journal Article] Susceptibility of human dendritic cells to measles virus depends on their activation stages in conjunction with the level of CDw150 : role of Toll stimulators in DC maturation and MV amplification2002
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Murabayashi, N., Kurita-Taniguchi, M., Ayata, M., Matsumoto, M., Ogura, H., Seya, T.
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Journal Title
Microbes and Infection 4
Pages: 785-794
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[Journal Article] Mutations affecting transcriptional termination in the P gene end of subacute sclerosing panencephalitis viruses2002
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Ayata, M., Komase, K., Shingai, M., Matsunaga, I., Katayama, Y., Ogura, H.
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Journal Title
Journal of Virology 76
Pages: 13062-13068
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