Fig. 3

Repeated CpG, but not Poly(I:C) injections induce a mild HLH-like syndrome in WT BALB/c mice. a Percentage change in body weight relative to initial body weight at day 0. Median with interquartile range of 5 mice per experimental group. b Rectal body temperature (°C). Dotted line = 38.5°C (fever) or 34.5°C (endpoint as an indication of mortality). Median with interquartile range of 5 mice per experimental group. c Absolute spleen, liver and lymph node (LN) weight (g). Two inguinal LN were measured. d Absolute lymphocyte, platelet and red blood cell (RBC) count in whole blood. e Plasma concentration of the ferritin heavy chain (ng/ml). f Percentage of NK cells in spleen, analyzed as CD49b⁺CD122⁺ of CD3^-PI^- splenocytes. g Plasma concentration of ALT (IU/L). c, d, f, g Dots represent individual animals. e Dots represent the average of two dilutions for one single mouse. Horizontal bars refer to median group values. c-g Data were obtained on day 9 post injection. ALT = alanine transaminase, CpG = 50μg or 100μg per mouse every other day, NI = not injected, PI = propidium iodide, PolyIC = 50μg or 200μg per mouse every other day, temp. = temperature, WT = wild-type. * p < 0.05; ** p < 0.01; *** p < 0.001; Mann-Whitney U test. Depicted data are from 1 experiment, representative of 2 experiments with 5 mice per experimental group