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Analysis of the function of CD9 and tetraspanins

Analysis of the function of CD9 and tetraspanins
CD9和四跨膜蛋白的功能分析
批准号:
13480238
负责人:
MEKADA Eisuke
金额:
$9.73万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2001
资助国家:
日本
项目状态:
已结题
起止时间:
2001 至 2002

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中文摘要
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英文摘要
(1) CD9-/-eggs are defect in fertilization, especially the fusion step with sperm.The fusion activity of CD9-/-eggs with sperm was recovered by the injection of CD9 mRNA into CD9-/-eggs. We constructed various mutant forms of CD9 mutants and examined their activities by injection their mRNA to CD9-/-eggs. These experiments suggestrd that the C-terminal domain of CD9 is essential for the recovery of fusion activity.(2) There are 29 members of the tetraspanins in C. elegans. We carried out RNA interference experiments for these tetraspanins to explore the role of tetraspanins in a whole animal. One of the tetraspanins, TSP-15, showed marked effect in body integrity. Present study opens new approach to analyse tetraspanins function by genetic methods.
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Kawashima, M., etc: "CD9 expression in solid non-neuroepithelial tumors and infiltrative astrocytic tumors"J.Histochem.Cytochem.. 50. 1195-1203 (2002)
Kawashima,M.等:“实体非神经上皮肿瘤和浸润性星形细胞肿瘤中的CD9表达”J.Histochem.Cytochem..50.1195-1203(2002)
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通讯作者:
Kusukawa, J. Ryu, F. Kameyama, T. Mekada, E.: "Reduced expression of CD9 in oral squamous cell carcinoma: CD9 expression inversely related to high prevalence of lymph node metastasis."J. Oral Pathol. Med.. 30. 73-79 (2001)
Kusukawa, J. Ryu, F. Kameyama, T. Mekada, E.:“口腔鳞状细胞癌中 CD9 表达降低:CD9 表达与淋巴结转移的高发生率呈负相关。”
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Takenobu, H. Yamazaki, A. Hirata, M. Umata, T. and Mekada, E.: "The stress-and the inflammatory cytokine-indued ectodomain shedding of heparin-binding EGF-like growth factor is mediated by p38MAPK, distinct from TPA-induced and LPA-induced signaling casca
Takenobu, H. Yamazaki, A. Hirata, M. Umata, T. 和 Mekada, E.:“应激和炎症细胞因子诱导的肝素结合 EGF 样生长因子的胞外域脱落是由 p38MAPK 介导的,与
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Shimizu, T., etc: "Elevated cerebrospinal fluid levels of anti-CD9 antibodies in patients with subacute sclerosing panencephalitis"J.Infect.Dis.. 185. 1346-1350 (2002)
Shimizu, T.等:“亚急性硬化性全脑炎患者脑脊液中抗CD9抗体水平升高”J.Infect.Dis.. 185. 1346-1350 (2002)
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26
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