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Pan H, Li WJ, Yao XJ, Wu YY, Liu LL, He HM, Zhang RL, Ma YF, Cai LT. In Situ Bioorthogonal Metabolic Labeling for Fluorescence Imaging of Virus Infection In Vivo. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1604036. [PMID: 28218446 DOI: 10.1002/smll.201604036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/09/2017] [Indexed: 06/06/2023]
Abstract
Optical fluorescence imaging is an important strategy to explore the mechanism of virus-host interaction. However, current fluorescent tag labeling strategies often dampen viral infectivity. The present study explores an in situ fluorescent labeling strategy in order to preserve viral infectivity and precisely monitor viral infection in vivo. In contrast to pre-labeling strategy, mice are first intranasally infected with azide-modified H5N1 pseudotype virus (N3 -H5N1p), followed by injection of dibenzocyclooctyl (DBCO)-functionalized fluorescence 6 h later. The results show that DBCO dye directly conjugated to N3 -H5N1p in lung tissues through in vivo bioorthogonal chemistry with high specificity and efficacy. More remarkably, in situ labeling rather than conventional prelabeling strategy effectively preserves viral infectivity and immunogenicity both in vitro and in vivo. Hence, in situ bioorthogonal viral labeling is a promising and reliable strategy for imaging and tracking viral infection in vivo.
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Affiliation(s)
- Hong Pan
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Wen-Jun Li
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiang-Jie Yao
- Major Infectious Disease Control Key Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, P. R. China
| | - Ya-Yun Wu
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lan-Lan Liu
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hua-Mei He
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ren-Li Zhang
- Major Infectious Disease Control Key Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, P. R. China
| | - Yi-Fan Ma
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lin-Tao Cai
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Lv C, Lin Y, Liu AA, Hong ZY, Wen L, Zhang Z, Zhang ZL, Wang H, Pang DW. Labeling viral envelope lipids with quantum dots by harnessing the biotinylated lipid-self-inserted cellular membrane. Biomaterials 2016; 106:69-77. [DOI: 10.1016/j.biomaterials.2016.08.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/06/2016] [Accepted: 08/09/2016] [Indexed: 12/11/2022]
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Ilyushina NA, Chernyy ES, Korchagina EY, Gambaryan AS, Henry SM, Bovin NV. Labeling of influenza viruses with synthetic fluorescent and biotin-labeled lipids. Virol Sin 2014; 29:199-210. [PMID: 25160755 DOI: 10.1007/s12250-014-3475-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Accepted: 07/17/2014] [Indexed: 10/24/2022] Open
Abstract
Direct labeling of virus particles is a powerful tool for the visualization of virus-cell interaction events. However, this technique involves the chemical modification of viral proteins that affects viral biological properties. Here we describe an alternative approach of influenza virus labeling that utilizes Function-Spacer-Lipid (FSL) constructs that can be gently inserted into the virus membrane. We assessed whether labeling with fluorescent (fluo-Ad-DOPE) or biotin-labeled (biot-CMG2-DOPE) probes has any deleterious effect on influenza virus hemagglutinin (HA) receptor specificity, neuraminidase (NA) activity, or replicative ability in vitro. Our data clearly show that neither construct significantly affected influenza virus infectivity or viral affinity to sialyl receptors. Neither construct influenced the NA activities of the influenza viruses tested, except the A/Puerto Rico/8/34 (H1N1) strain. Our data indicate that lipid labeling provides a powerful tool to analyze influenza virus infection in vitro.
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A simple method for Alexa Fluor dye labelling of dengue virus. J Virol Methods 2010; 167:172-7. [PMID: 20399231 DOI: 10.1016/j.jviromet.2010.04.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2010] [Revised: 03/31/2010] [Accepted: 04/08/2010] [Indexed: 11/22/2022]
Abstract
Dengue virus causes frequent and cyclical epidemics throughout the tropics, resulting in significant morbidity and mortality rates. There is neither a specific antiviral treatment nor a vaccine to prevent epidemic transmission. The lack of a detailed understanding of the pathogenesis of the disease complicates these efforts. The development of methods to probe the interaction between the virus and host cells would thus be useful. Direct fluorescence labelling of virus would facilitate the visualization of the early events in virus-cell interaction. This report describes a simple method of labelling of dengue virus with Alexa Fluor succinimidyl ester dye dissolved directly in the sodium bicarbonate buffer that yielded highly viable virus after labelling. Alexa Fluor dyes have superior photostability and are less pH-sensitive than the common dyes, such as fluorescein and rhodamine, making them ideal for studies on cellular uptake and endosomal transport of the virus. The conjugation of Alexa Fluor dye did not affect the recognition of labelled dengue virus by virus-specific antibody and its putative receptors in host cells. This method could have useful applications in virological studies.
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She RC, Preobrazhensky SN, Taggart EW, Petti CA, Bahler DW. Flow cytometric detection and serotyping of enterovirus for the clinical laboratory. J Virol Methods 2009; 162:245-50. [PMID: 19733594 PMCID: PMC7172270 DOI: 10.1016/j.jviromet.2009.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 08/24/2009] [Accepted: 08/27/2009] [Indexed: 11/20/2022]
Abstract
Culture and serotyping of human enteroviruses by fluorescence microscopy are time-consuming and labor-intensive. Flow cytometry has the potential of being more rapid, sensitive, and objective but has not been used for these purposes in a clinical laboratory. Primary rhesus monkey kidney (PMK) cells were inoculated with several enterovirus serotypes and stained with enterovirus-specific antibodies for flow cytometry and indirect fluorescence antibody testing (IFA). Kinetic studies of coxsackievirus B1 and echovirus 30 infection of PMK cells were performed on days 1–4 after inoculation. Flow cytometry results for echovirus 6, 9, 11, and 30 and coxsackievirus B1 correlated with IFA in all cases. Coxsackievirus B1 and echovirus 30 infections were detected 1 day earlier by flow cytometry than IFA. Flow cytometry can be effectively used for detecting enterovirus-infected cells in a clinical laboratory with the advantages of better quantitation of low levels of infection and earlier detection of virally infected cells in culture systems.
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Affiliation(s)
- Rosemary C She
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA.
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