Primary mouse anti‐human antibodies raised against Bak and Bax were obtained from Sigma Chemicals (St. Louis, MO), Mcl‐1 from Santa Cruz Biotechnology (Santa Barbara, CA). Primary mouse/rabbit anti‐human antibodies raised against Bid, Bim, Noxa, Beclin‐1, p65, Bcl‐2, Bcl‐XL, Puma, PARP‐1, cleaved PARP‐1 and actin were obtained from Cell Signaling (Danvers, MA). Alkaline phosphatase (AP) or horseradish peroxidase (HRP) conjugated anti‐mouse/rabbit secondary antibodies were purchased from Jackson ImmunoResearch (West Grove, PA).
Sodium 51chromate (51Cr) (Perkin‐Elmer Life Inc., Boston MA) was used in functional assays assessing antibody‐mediated complement cytotoxicity (CMC) or antibody dependent cellular cytotoxicity (ADCC). Triton X‐100, trypan blue and histopaque‐1077 were obtained from Sigma‐Aldrich Inc. (St Louis, MO). Cell Titer‐Glo Luminescent Viability Assay reagent was purchased from Promega (Madison, WI).