{"title":"应用荧光探针Laurdan研究水疱性口炎病毒(VSV)膜的结构组织。","authors":"A Lisi, D Pozzi, S Grimaldi","doi":"10.3109/09687689309150268","DOIUrl":null,"url":null,"abstract":"<p><p>We have used 6-dodecanoil-2-dimethylaminonaphtalene (Laurdan) to study the membrane fluidity of Vesicular Stomatitis Virus (VSV) during virus activation at acidic pH 5.8). The fluorescence properties of Laurdan provide a unique possibility to study lipid organization because of the different excitation and emission spectra of this probe in the gel and liquid crystalline phase. Acidification to pH 5.8 (the pH which triggers VSV fusion with target membranes) generates a decrease in VSV membrane fluidity that could be reversed perfectly after neutralization. We conclude that lipid reorganization of the VSV membrane in the endocytic vesicles is needed for virus activation.</p>","PeriodicalId":18448,"journal":{"name":"Membrane biochemistry","volume":"10 4","pages":"203-12"},"PeriodicalIF":0.0000,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/09687689309150268","citationCount":"8","resultStr":"{\"title\":\"Use of the fluorescent probe Laurdan to investigate structural organization of the vesicular stomatitis virus (VSV) membrane.\",\"authors\":\"A Lisi, D Pozzi, S Grimaldi\",\"doi\":\"10.3109/09687689309150268\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>We have used 6-dodecanoil-2-dimethylaminonaphtalene (Laurdan) to study the membrane fluidity of Vesicular Stomatitis Virus (VSV) during virus activation at acidic pH 5.8). The fluorescence properties of Laurdan provide a unique possibility to study lipid organization because of the different excitation and emission spectra of this probe in the gel and liquid crystalline phase. Acidification to pH 5.8 (the pH which triggers VSV fusion with target membranes) generates a decrease in VSV membrane fluidity that could be reversed perfectly after neutralization. We conclude that lipid reorganization of the VSV membrane in the endocytic vesicles is needed for virus activation.</p>\",\"PeriodicalId\":18448,\"journal\":{\"name\":\"Membrane biochemistry\",\"volume\":\"10 4\",\"pages\":\"203-12\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1993-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.3109/09687689309150268\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Membrane biochemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3109/09687689309150268\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Membrane biochemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3109/09687689309150268","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Use of the fluorescent probe Laurdan to investigate structural organization of the vesicular stomatitis virus (VSV) membrane.
We have used 6-dodecanoil-2-dimethylaminonaphtalene (Laurdan) to study the membrane fluidity of Vesicular Stomatitis Virus (VSV) during virus activation at acidic pH 5.8). The fluorescence properties of Laurdan provide a unique possibility to study lipid organization because of the different excitation and emission spectra of this probe in the gel and liquid crystalline phase. Acidification to pH 5.8 (the pH which triggers VSV fusion with target membranes) generates a decrease in VSV membrane fluidity that could be reversed perfectly after neutralization. We conclude that lipid reorganization of the VSV membrane in the endocytic vesicles is needed for virus activation.
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