Table 1.
Hemophagocytosis is characteristic of fulminant MAS independent of a variety of pro-inflammatory cytokines
Mice with excessive hemophagocytosis/total mice in group | |||||
---|---|---|---|---|---|
PBS + IL10RB |
KO/cytokine blocked PBS + IL10RB |
WT: CpG + IL10RB |
KO/cytokine blocked CpG + IL10RB |
||
IFN-γKO | 0/9 | 0/9 | 7/8 | 7/8 | |
antiIL-12p40 | 0/3 | 0/3 | 3/3 | 3/3 | |
antiTNFα | 1/3 | 0/1 | 3/3 | 3/3 | |
IFNARKO | 0/2 | 0/3 | 3/3 | 4/4 |
Splenic touchpreps were prepared as described in Methods and a blinded pediatric hematopathologist (MP) designated each sample as excessive hemophagocytosis present or absent.