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. 2013 May 13;201(4):613–629. doi: 10.1083/jcb.201206006

Figure 8.

Figure 8.

ATM is dispensable for HMGB1 secretion. (A) PRE or SEN (XRA) HCA2 cells and two A-T derived fibroblast strains (AT2SF, AT5283) were immunostained for HMGB1 (red). Nuclei were stained with DAPI (blue). Bars,10 µM. (B) Cells in A were scored for SA-β-Gal and BrdU incorporation (24-h pulse). Error bars = SEM of two experiments. (C) CM from cells in A were assessed for HMGB1 secretion by ELISA. Error bars = SEM of two experiments. (D) Lysates from HCA2 cells infected with lentiviruses carrying GFP (Control) or ATM (KD) shRNA and lysates from A-T fibroblasts (AT2SF) were analyzed for HMGB1 and actin by Western blotting. HMGB1 signals were normalized to actin, and are shown relative to shGFP.