Consfrudaon of sensitive environment monitoring devices using a noncompetitive immunodetection system
非竞争性免疫检测系统敏感环境监测装置的构建
基本信息
- 批准号:17360394
- 负责人:
- 金额:$ 8.17万
- 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:2005
- 资助国家:日本
- 起止时间:2005 至 2007
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The objective of this study was to make a comprehensive and sensitive detection system of low molecular weight analytes through the use of a novel immunoassay principle that utilizes the stabilization of antibody Fv region upon binding with antigen (open sandwich immunoassay, OS-IA). To this end, we cloned the Fv genes of the antibodies for two anti-neonicotinoid pesticides, a mycotoxin, and a low molecular weight peptide BGP-C7, and succeeded in the construction of OS-IA system and sensitive noncompetitive detection thereof. Especially in the last system, rapid detection from a minute amount of serum sample was attained by a microchip-based detection system.Through this process, we realized the importance of optimized phage display format for the selection of antibodies that are suitable to OS-IA. In addition to split Fv system already developed, an scFv-OS conversion system based on ere recombinase was developed, as well as an Fab-OS conversion system which enabled construction and selection of larger library of 10^8 size. While the scheduled construction of cell-free selection system is yet to be done, we think efficient selection of larger and focused library for OS-IA is soon to be realized, which will enable sensitive detection of various small analytes such as environmental pollutants and protein modification such as phosphorylation and truncation.As an unplanned result, we developed a novel method to express antibody fusion proteins in antibody producing cells through ''trans'' splicing of the pre-mRNAs in the cell nucleus. As a model system, a VH-enzyme fusion mRNA and corresponding protein that is indispensable in OS-IA were successfully expressed in COS-1 cells. Elucidation of rapid fabrication methods of such fusion proteins from established hybridoma resources without the need of gene cloning is envisaged based on this principle as well as other principles.
本研究的目的是通过使用一种新的免疫测定原理,利用抗体Fv区与抗原结合后的稳定性(开放夹心免疫测定,OS-IA),建立一个全面和灵敏的低分子量分析物的检测系统。为此,我们克隆了两种抗烟碱类农药、一种真菌毒素和一种低分子量肽BGP-C7的抗体的Fv基因,并成功地构建了OS-IA系统及其灵敏的非竞争性检测。特别是在最后一个系统中,我们利用基于微芯片的检测系统实现了对微量血清样品的快速检测,通过这个过程,我们认识到优化噬菌体展示形式对于筛选适合OS-IA的抗体的重要性。除了已经开发的分离Fv系统之外,还开发了基于ere重组酶的scFv-OS转化系统,以及能够构建和选择10^8大小的更大文库的Fab-OS转化系统。虽然无细胞选择系统的预定构建尚未完成,但我们认为OS-IA的更大和集中的文库的有效选择很快就会实现,这将使各种小分析物如环境污染物和蛋白质修饰如磷酸化和截短等的灵敏检测成为可能。我们开发了一种新的方法,通过细胞核中前mRNA的“反式”剪接在抗体产生细胞中表达抗体融合蛋白。作为模型系统,在COS-1细胞中成功表达了OS-IA中不可缺少的VH-酶融合mRNA和相应蛋白。基于这一原理以及其他原理,设想了从已建立的杂交瘤资源中快速制备这种融合蛋白而不需要基因克隆的方法的阐明。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Mimicry of erythropoietin and interleukin-6 signaling by an antibody/cytokine receptor chimera in murine myeloid 32D cells
小鼠骨髓 32D 细胞中抗体/细胞因子受体嵌合体模拟促红细胞生成素和白细胞介素 6 信号传导
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:M.Kawahara M.;H.Ueda;K.Tsumoto;I. Kumagai;T.Nagamune
- 通讯作者:T.Nagamune
マイクロ流路を用いた微量低分子診断マーカーの非競合高速度検出
使用微通道非竞争性高速检测痕量小分子诊断标记物
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:Ayabe;K.;Zako;T.;Ueda;H.;H. Ueda;田辺 明人・伊原 正喜・上田 宏;芳川 天音・呉 雨書・高橋 寛子・馬渡 和真・伊原 正喜・北森 武彦・上田 宏
- 通讯作者:芳川 天音・呉 雨書・高橋 寛子・馬渡 和真・伊原 正喜・北森 武彦・上田 宏
転写制御因子Drlを認識する細胞内抗体の選択とその機能解析
识别转录调节因子Drl的胞内抗体的筛选及其功能分析
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:S. Waki;K;Yoshitake;R. lwasaki;and;呉 雨書・高橋 寛子・佐藤 香枝・志村 清仁・北森 武彦・上田 宏;小嶋 美樹・黒川 直也・岩崎 亮平・上田 宏;黒田 翔・吉田将志・伊原正喜・上田 宏;加藤洋平・笹島義志・伊原正喜・上田 宏
- 通讯作者:加藤洋平・笹島義志・伊原正喜・上田 宏
Exogenous gene expression and growth regulation of hematopoietic cells via a novel human artificial chromosome.
通过新型人类人工染色体进行外源基因表达和造血细胞生长调节。
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Yamada;H;11名
- 通讯作者:11名
Importance of terminal residues on circularly permutated Escherichia coli alkaline phosphatase with high specific acitivty
末端残基对高比活性循环排列大肠杆菌碱性磷酸酶的重要性
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:Kojima;M.;Ayabe;K.;Ueda;H.
- 通讯作者:H.
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UEDA Hiroshi其他文献
UEDA Hiroshi的其他文献
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{{ truncateString('UEDA Hiroshi', 18)}}的其他基金
Research on olfactory spawning site selection of tiger puffer in the Nanao Bay
七尾湾虎河豚嗅觉产卵地点选择研究
- 批准号:
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26253077 - 财政年份:2014
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26630284 - 财政年份:2014
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Innate immunity regulation by prothymosin alpha -mimetics
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25670061 - 财政年份:2013
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25450257 - 财政年份:2013
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25630370 - 财政年份:2013
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24360336 - 财政年份:2012
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