Journal
MOLECULAR IMAGING AND BIOLOGY
Volume 24, Issue 2, Pages 250-263Publisher
SPRINGER
DOI: 10.1007/s11307-021-01662-5
Keywords
Transgenic mouse models; Immune cells; Fluorescence; Bioluminescence; Intravital imaging
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The use of transgenic mouse models with optical reporter genes enables in vivo imaging of cellular and molecular events, as well as accurately distinguishing immune cell types and their activities. These models are essential for studying immune cell function and evaluating the effects of immunotherapies against diseases like cancer.
Transgenic mouse models have facilitated research of human diseases and validation of therapeutic approaches. Inclusion of optical reporter genes (fluorescent or bioluminescent genes) in the targeting vectors used to develop such models makes in vivo imaging of cellular and molecular events possible, from the microscale to the macroscale. In particular, transgenic mouse models expressing optical reporter genes allowed accurately distinguishing immune cell types from trafficking in vivo using intravital microscopy or whole-body optical imaging. Besides lineage tracing and trafficking of different subsets of immune cells, the ability to monitor the function of immune cells is of pivotal importance for investigating the effects of immunotherapies against cancer. Here, we introduce the reader to state-of-the-art approaches to develop transgenics, optical imaging techniques, and several notable examples of transgenic mouse models developed for immunology research by critically highlighting the models that allow the following of immune cell function.
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