دورية أكاديمية
High-Efficiency Capture of Drug Resistant-Influenza Virus by Live Imaging of Sialidase Activity.
| العنوان: | High-Efficiency Capture of Drug Resistant-Influenza Virus by Live Imaging of Sialidase Activity. |
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| المؤلفون: | Yuuki Kurebayashi, Tadanobu Takahashi, Chihiro Tamoto, Keiji Sahara, Tadamune Otsubo, Tatsuya Yokozawa, Nona Shibahara, Hirohisa Wada, Akira Minami, Kiyoshi Ikeda, Takashi Suzuki |
| المصدر: | PLoS ONE, Vol 11, Iss 5, p e0156400 (2016) |
| بيانات النشر: | Public Library of Science (PLoS), 2016. |
| سنة النشر: | 2016 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Influenza A and B viruses possess a neuraminidase protein that shows sialidase activity. Influenza virus-specific neuraminidase inhibitors (NAIs) are commonly used for clinical treatment of influenza. However, some influenza A and B viruses that are resistant to NAIs have emerged in nature. NAI-resistant viruses have been monitored in public hygiene surveys and the mechanism underlying the resistance has been studied. Here, we describe a new assay for selective detection and isolation of an NAI-resistant virus in a speedy and easy manner by live fluorescence imaging of viral sialidase activity, which we previously developed, in order to achieve high-efficiency capture of an NAI-resistant virus. An NAI-resistant virus maintains sialidase activity even at a concentration of NAI that leads to complete deactivation of the virus. Infected cells and focuses (infected cell populations) of an oseltamivir-resistant virus were selectively visualized by live fluorescence sialidase imaging in the presence of oseltamivir, resulting in high-efficiency isolation of the resistant viruses. The use of a combination of other NAIs (zanamivir, peramivir, and laninamivir) in the imaging showed that the oseltamivir-resistant virus isolated in 2008 was sensitive to zanamivir and laninamivir but resistant to peramivir. Fluorescence imaging in the presence of zanamivir also succeeded in selective live-cell visualization of cells that expressed zanamivir-resistant NA. Fluorescence imaging of NAI-resistant sialidase activity will be a powerful method for study of the NAI resistance mechanism, for public monitoring of NAI-resistant viruses, and for development of a new NAI that shows an effect on various NAI-resistant mutations. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1932-6203 |
| العلاقة: | http://europepmc.org/articles/PMC4883822?pdf=renderTest; https://doaj.org/toc/1932-6203Test |
| DOI: | 10.1371/journal.pone.0156400 |
| الوصول الحر: | https://doaj.org/article/cb4538c8be9143c59c90a9ce6f98b6dbTest |
| رقم الانضمام: | edsdoj.b4538c8be9143c59c90a9ce6f98b6db |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19326203 |
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| DOI: | 10.1371/journal.pone.0156400 |