Cell membrane enolase of Aedes albopictus C6/36 cells is involved in the entrance mechanism of dengue virus (DENV) |
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Institution: | 1. Department of Genetics and Molecular Biology, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico;2. Department of Population Health and Disease Prevention, University of California, Irvine, Irvine, CA, USA;3. University of Texas Rio Grande Valley, South Texas Diabetes and Obesity Institute, Department of Human Genetics, Edinburg, TX, USA;4. Coordinación Académica, Universidad Autónoma de la Ciudad de México, Mexico City, Mexico |
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Abstract: | Currently, there are no antiviral drugs that effectively reduce the risks and treat the symptoms associated with dengue virus (DENV). Consequently, efforts remain primarily focused on transmission reduction. One such effort concerns DENV receptors in mosquito vectors Aedes aegypti and Aedes albopictus. Despite a lack of direct evidence demonstrating the binding of DENV to cells in mosquito vectors, one putative DENV binding protein has been α-enolase. To develop a deeper understanding, this study tested whether DENV proteins bind to enolase localized in the cytoplasmic membrane of C6/36 cells using both anti-enolase-specific antibodies, and by colocalization analysis, using confocal microscopy.Additionally, to probe the interaction of enolase with the DENV E protein, we performed a docking analysis using PatchDock and FireDock software packages. Study results demonstrate that the DENV E protein interacts with enolase in the plasma membrane of C6/36 cells of Ae. albopictus. Specific anti-enolase antibodies were found to inhibit DENV infection of these cells. Moreover, enolase was found to be localized to the cytoplasmic membrane, cytoplasm, and nucleus. These combined findings suggest that enolase participates in the entrance mechanism of DENV into vector cells. |
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Keywords: | MBP1 Cell surface receptors Cell membrane enolase Dengue virus (DENV) Enolase Protein modelling |
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