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  • 标题:Cost-effective high-speed, three-dimensional live-cell imaging of HIV-1 transfer at the T cell virological synapse
  • 本地全文:下载
  • 作者:Alice Sandmeyer ; Lili Wang ; Wolfgang Hübner
  • 期刊名称:iScience
  • 印刷版ISSN:2589-0042
  • 出版年度:2022
  • 卷号:25
  • 期号:11
  • 页码:1-16
  • DOI:10.1016/j.isci.2022.105468
  • 语种:English
  • 出版社:Elsevier
  • 摘要:SummaryThe availability of cost-effective, highly portable, and easy to use high-resolution live-cell imaging systems could present a significant technological break-through in challenging environments, such as high-level biosafety laboratories or sites where new viral outbreaks are suspected. We describe and demonstrate a cost-effective high-speed fluorescence microscope enabling the live tracking of virus particles across virological synapses that form between infected and uninfected T cells. The dynamics of HIV-1 proteins studied at the cellular level and the formation of virological synapses in living T cells reveals mechanisms by which cell-cell interactions facilitate infection between immune cells. Dual-color 3D fluorescence deconvolution microscopy of HIV-1 particles at frames rates of 100 frames per second allows us to follow the transfer of HIV-1 particles across the T cell virological synapse between living T cells. We also confirm the successful transfer of virus by imaging T cell samples fixed at specific time points during cell-cell virus transfer by super-resolution structured illumination microscopy.Graphical abstractDisplay OmittedHighlights•A cost-effective, high-speed 3D fluorescence microscope was developed•Three-dimensional fluorescence micrographs of immune cells were collected•Transfer of HIV-1 between infected and uninfected T cells was observed•Super-resolution SIM imaging revealed HIV-1 particles in immunological synapsesOptical imaging; Virology
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