Using Multiphoton Intravital Microscopy to Study Neutrophil Transmigration and Blood-Brain Barrier Permeability in a Mouse Model of Herpes Simplex Virus Encephalitis

Methods Mol Biol. 2024:2828:45-55. doi: 10.1007/978-1-0716-4023-4_5.

Abstract

Multiphoton intravital microscopy (MP-IVM) is an imaging technique used for the observation of living organisms at a microscopic resolution. The tissue of interest is exposed through a window allowing imaging of cells in real time. Using MP-IVM, the temporospatial kinetics of leukocyte transendothelial migration can be visualized and quantitated using reporter mice and cell-specific fluorophore-conjugated monoclonal antibodies to track the leukocytes within and outside of vascular beds. Here we describe a method used to study neutrophil transendothelial migration and blood-brain barrier permeability in a mouse model of herpes simplex virus I (HSV) encephalitis.

Keywords: Blood−brain barrier permeability; Brain parenchyma; HSV encephalitis; Leukocyte migration; Multiphoton intravital microscopy; Neutrophil migration; Transendothelial migration.

MeSH terms

  • Animals
  • Blood-Brain Barrier* / metabolism
  • Blood-Brain Barrier* / pathology
  • Blood-Brain Barrier* / virology
  • Disease Models, Animal*
  • Encephalitis, Herpes Simplex* / metabolism
  • Encephalitis, Herpes Simplex* / pathology
  • Encephalitis, Herpes Simplex* / virology
  • Herpesvirus 1, Human / physiology
  • Intravital Microscopy* / methods
  • Mice
  • Microscopy, Fluorescence, Multiphoton* / methods
  • Neutrophils* / metabolism
  • Permeability
  • Transendothelial and Transepithelial Migration*