Cell Press, Cancer Cell, 5(21), p. 597-598, 2012
DOI: 10.1016/j.ccr.2012.04.034
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CD37 is a tetraspannin that triggers cell death and is a potential therapeutic target in cancers. In this issue of Cancer Cell, Lapalombella et al. show that CD37 is tyrosine phosphorylated following engagement by a bivalent engineered antibody fragment that binds CD37 and activates both SHP-1-dependent apoptotic signaling and PI3K-AKT-mediated survival signaling.