The mice were euthanized at 4 weeks after MI. Their blood, spleens, bone marrow and infarcted hearts were collected and made into single-cell suspensions for flow cytometry analysis, as previously described10 (link). The cells were stained with a mixture of antibodies (anti-CD11b-APC and anti-Gr-1-PerCP-Cy5.5 BD Biosciences). The data were acquired using an LSRII flow cytometer (BD Biosciences) and were analyzed with FlowJo7 software (Tree Star, Inc.).
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