Figure 4.

Dendritic cell chimerism in adult isochronic and heterochronic parabiosis. Data represent the frequency of dendritic cells (CD11c⁺Gr1^mid/loF4/80^–) within the CD45·1 (adult) or CD45·2 (old) compartment, respectively, from the indicated tissue. (a) Analysis of CD45·1 or CD45·2 DCs in isochronic adult CD45·1 tissues. (b) Analysis of CD45·1 or CD45·2 DCs in isochronic adult CD45·2 tissues. (c) Analysis of the frequency of adult or old DCs in heterochronic adult tissues. (d) Analysis of the frequency of adult or old DCs in heterochronic old tissues. Numbers of experiments, animals and statistical treatment and levels are as in Fig. 1.