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. 2007 Nov 26;204(12):3037–3047. doi: 10.1084/jem.20070885

Figure 2.

Figure 2.

The ischemic myocardium sequentially recruits circulating Ly-6Chi and -6Clo monocytes. (A) Number of total leukocytes in peripheral blood of C57BL/6 mice before MI and at the onset of phase I (day 1 after MI) and phase II (day 4). (B) Number of circulating Ly-6Chi and -6Clo monocytes at the same time points. Values in the top right quadrants indicate the ratio between the two subsets. (C) In vivo cardiac accumulation of 111In-oxine-labeled Ly-6Chi and -6Clo monocytes 24 h after adoptive transfer on day 0 (phase I) and day 4 (phase II). Values in the top right quadrants indicate the ratio between the two subsets. (D) Adoptively transferred 111In-oxine–labeled Ly-6Chi monocytes compete with endogenous Ly-6Chi monocytes. Increased numbers of endogenous circulating Ly-6Chi monocytes (x axis) decrease the ratio between transferred and endogenous Ly-6Chi monocytes (label frequency, y axis) that migrated into the peritoneal cavity of mice with peritonitis (Table S1). (E) Pie graph representing the relative proportion of Ly-6Chi and -6Clo monocyte subsets expected to accumulate in infarct tissue, based on the mean abundance of each subset in peripheral blood (B) and the intrinsic capacity of circulating cells from each subset to accumulate at infarct tissue (C). Data represent three independent experiments and are shown as the mean ± the SEM. Table S1 is available at http://www.jem.org/cgi/content/full/jem.20070885/DC1.