{"title":"荧光唾液酸酶显像法高效检测和分离神经氨酸酶抑制剂耐药流感病毒。","authors":"Yuuki Kurebayashi","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Influenza A and B viruses possess an enzyme \"sialidase\" that cleavages terminal sialic acid from glycochains. These viral sialidase proteins are highly expressed on the virus infected cells. We developed sialidase imaging probe \"BTP3-Neu5Ac\" that enables histochemical fluorescence staining of sialidase activity. BTP3-Neu5Ac was able to perform speedy and easy fluorescence imaging of these virus infected cells, with no needs of specific antibody and cell fixation. In addition, combination use of anti-influenza drugs (sialidase inhibitors) and BTP3-Neu5Ac resulted in selective fluorescence imaging for detection and high-efficiency isolation of drug-resistant virus. Fluorescence imaging of drug-resistant virus will be a powerful method for study of the drug-resistance mechanism, for monitoring of drug-resistant viruses. A novel tool for fluorescence imaging of viral sialidase activity is described in this review.</p>","PeriodicalId":22536,"journal":{"name":"The Japanese journal of antibiotics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High efficiency method of detection and isolation of neuraminidase inhibitor resistant influenza viruses by fluorescence sialidase imaging.\",\"authors\":\"Yuuki Kurebayashi\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Influenza A and B viruses possess an enzyme \\\"sialidase\\\" that cleavages terminal sialic acid from glycochains. These viral sialidase proteins are highly expressed on the virus infected cells. We developed sialidase imaging probe \\\"BTP3-Neu5Ac\\\" that enables histochemical fluorescence staining of sialidase activity. BTP3-Neu5Ac was able to perform speedy and easy fluorescence imaging of these virus infected cells, with no needs of specific antibody and cell fixation. In addition, combination use of anti-influenza drugs (sialidase inhibitors) and BTP3-Neu5Ac resulted in selective fluorescence imaging for detection and high-efficiency isolation of drug-resistant virus. Fluorescence imaging of drug-resistant virus will be a powerful method for study of the drug-resistance mechanism, for monitoring of drug-resistant viruses. A novel tool for fluorescence imaging of viral sialidase activity is described in this review.</p>\",\"PeriodicalId\":22536,\"journal\":{\"name\":\"The Japanese journal of antibiotics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Japanese journal of antibiotics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Japanese journal of antibiotics","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
High efficiency method of detection and isolation of neuraminidase inhibitor resistant influenza viruses by fluorescence sialidase imaging.
Influenza A and B viruses possess an enzyme "sialidase" that cleavages terminal sialic acid from glycochains. These viral sialidase proteins are highly expressed on the virus infected cells. We developed sialidase imaging probe "BTP3-Neu5Ac" that enables histochemical fluorescence staining of sialidase activity. BTP3-Neu5Ac was able to perform speedy and easy fluorescence imaging of these virus infected cells, with no needs of specific antibody and cell fixation. In addition, combination use of anti-influenza drugs (sialidase inhibitors) and BTP3-Neu5Ac resulted in selective fluorescence imaging for detection and high-efficiency isolation of drug-resistant virus. Fluorescence imaging of drug-resistant virus will be a powerful method for study of the drug-resistance mechanism, for monitoring of drug-resistant viruses. A novel tool for fluorescence imaging of viral sialidase activity is described in this review.
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