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Sieweke and colleagues show that alveolar macrophages maintain a core gene expression program even after several months in culture and reacquire full transcriptional and epigenetic identity after transplantation into the lung.
Choe and colleagues show that intravital three-photon microscopy can be used to visualize the popliteal LN in mice and measure CD8+ T cells and CD4+ T cell motility through this paper shows T cell motility in the entire depthof T cell zone by ~635 um.