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Two-Photon Intravital Imaging of Leukocytes in the Trachea During Pneumococcal Infection.

07:00 EST 1st January 2019 | BioPortfolio

Summary of "Two-Photon Intravital Imaging of Leukocytes in the Trachea During Pneumococcal Infection."

Two-photon intravital imaging (2P-IVM) of the murine trachea is a powerful technique for real-time imaging of immune cell recruitment and trafficking during airborne pathogen infections. Neutrophils are an important component of the innate immune response that are able to rapidly infiltrate the airway mucosa in response to Streptococcus pneumoniae infection. Here we describe a protocol to visualize in vivo neutrophil extravasation and cell dynamics in the tracheal tissue of a S. pneumoniae-infected mouse using 2P-IVM. To perform this protocol, we infected and imaged the trachea of a lysozyme M green fluorescent protein (LysM-GFP) mouse, in which neutrophils express GFP. Additionally, we used a custom-designed platform, which allowed the intubation and fixation of the trachea after surgical exposition, and we injected intravenously a fluorescently labeled dextran solution to visualize the blood vessels.

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This article was published in the following journal.

Name: Methods in molecular biology (Clifton, N.J.)
ISSN: 1940-6029
Pages: 183-194

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