Photoconversion and in vivo imaging shed light on immune cell migration and function in inflammation and cancer (#9)
Homing, migration and cell-cell interactions are vital features of a successful immune response. Two-photon microscopy has revolutionised biology in the last 20 years by providing an unprecedented opportunity to visualise immune cell dynamics in real-time in live organisms. More recently potential usefulness of this technology has been enhanced by the introduction of photoswitchable reporter proteins. The combination of in vivo imaging and photolabelling extends cell tracking beyond the confines of the imaging volume in both space and time. We used photoconversion, flow cytometry and two-photon microscopy to label and track immune cell both within and between organs. This approach provided unique insights into innate and adaptive immune cell fate and function during anti-microbial and tumour responses.