PPP1R9A and diffuse large B-cell lymphoma: Incubation of heavy-chain-only Fab-format neurabin-I BAR-bodies (of clone 2 version B) with un-transfected OCI-ly3 DLBCL cells at different concentrations (1.25–10 μg/ml) resulted in no LDH release indicating no unspecific Fab-format BAR-body-induced cytotoxicity (Figure 3A).