Figure 6

Depth of killing of B cells in peripheral lymphoid tissues of cynomolgus monkeys treated with REGN1979.
Cynomolgus monkeys were dosed with the indicated amounts of REGN1979 or rituximab and levels of circulating B and T cells were analyzed by FACS (a). Seven days post dose the animals were sacrificed and levels of B cells in the peripheral lymphoid tissues were examined by tissue FACS as described in Methods (b).