Imaging of the immune system towards a subcellular and molecular understanding

Lai Wen, Zhichao Fan, Zbigniew Mikulski, Klaus Ley

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Immune responses involve many types of leukocytes that traffic to the site of injury, recognize the insult and respond appropriately. Imaging of the immune system involves a set of methods and analytical tools that are used to visualize immune responses at the cellular and molecular level as they occur in real time. We will review recent and emerging technological advances in optical imaging, and their application to understanding the molecular and cellular responses of neutrophils, macrophages and lymphocytes. Optical live-cell imaging provides deep mechanistic insights at the molecular, cellular, tissue and organism levels. Live-cell imaging can capture quantitative information in real time at subcellular resolution with minimal phototoxicity and repeatedly in the same living cells or in accessible tissues of the living organism. Advanced FRET probes allow tracking signaling events in live cells. Light-sheet microscopy allows for deeper tissue penetration in optically clear samples, enriching our understanding of the higher-level organization of the immune response. Super-resolution microscopy offers insights into compartmentalized signaling at a resolution beyond the diffraction limit, approaching single-molecule resolution. This Review provides a current perspective on live-cell imaging in vitro and in vivo with a focus on the assessment of the immune system.

Original languageEnglish (US)
Article numberjcs234922
JournalJournal of Cell Science
Volume133
Issue number5
DOIs
StatePublished - 2020
Externally publishedYes

Keywords

  • Fret
  • Imaging
  • Immune cells
  • Intravital imaging
  • Microscopy
  • Molecular imaging
  • Subcellular imaging

ASJC Scopus subject areas

  • Cell Biology

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