| 论文题目: | A Rat Basophilic Leukaemia cell sensor for the detection of pathogenic viruses |
|---|---|
| 作者: | Qu Mingsheng, Boruah Bhargavi M, Zhang Wei, Li Yan, Liu Wenjun, Bi Yuhai, George F Gao, Yang Ruifu, Liu Dawei, Gao Bin |
| 联系作者: | Gao Bin |
| 刊物名称: | Biosensors & bioelectronics |
| 期: | |
| 卷: | 43 |
| 页: | 412-8 |
| 年份: | 2013 |
| 影响因子: | 5.637 |
| 论文下载: | |
| 摘要: | A Rat Basophilic Leukemia (RBL) cell sensor is developed for the detection and identification of pathogenic viruses. Recombinant sdAb-Fc antibodies were constructed by linking virus-specific single domain antibody to mouse IgE-Fc fragment. The sdAb-Fc can bind to FcepsilonRI receptors on RBL cells and can be cross-linked by target viruses leading to cell activation and Ca(2+) influx reflected by the increase of intracellular fluorescence. The responses of RBL cells to viruses in real time could be observed using fluorescence microscopy. 10(3) TCID(50) of H5N1 viruses and 10 LD(50) of rabies viruses could be detected in less than three minutes. An excess quantity of non-relevant viruses did not interfere with the recognition of target viruses. |
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