Our protocol allows us to visualize how fluorescently tagged cells respond to an inflammatory peripheral stimulus in a live animal in real time. 2-Photon imaging allows visualization deep into the tissue of a live specimen, preserving the integrit
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Morphological changes occur in immune responsive fibroblast cells following activation and promote alterations in cellular recruitment. Utilizing 2-photon imaging in conjunction with a genetically engineered Fibroblast-specific protein 1 (FSP1)-cre; tdTomato floxed-stop-floxed (TB/TB) mouse line and green fluorescently tagged lipopolysaccharide-FITC, we can illustrate highly specific uptake of lipopolysaccharide in dermal fibroblasts and morphological changes in vivo.