Serum HMGB1 strongly promotes inflammation, regulates dendritic cell function and migration, skews the T cell response towards a Th1 profile and induces proliferation and the release of IL-6 [11], [12], [13] Consequently, HMGB1, which has been shown to be elevated within 24 hours following stroke or myocardial infarction, could act as important player in the modulation of post stroke immune responses. The gene discussed is HMGB1; the disease is myocardial infarction.