a, Western blot of B16 Adar1-null
tumour cells following re-expression of wild-type ADAR1 or an irrelevant
control (CD19) protein. Data are representative of two independent
experiments. b, IFNβ secretion (left) and relative
growth (right) of control (grey), Adar1 p150/p110-null
(red), Adar1-null with full-length ADAR1 re-expression
construct (red outline) and control with ADAR1 re-expression construct (grey
outline) B16 tumour cells following cytokine stimulation as indicated
(n = 3 for each condition). Data are representative of
two independent experiments. c, qPCR and western blot
validation of the loss of expression of Ifnar2, Ifngr1 and
Stat1 from B16 tumour cells used to generate the
control and Adar1-null tumour cell lines shown in Fig. 3. n = 3 for qPCR
experiments and data are representative of two independent experiments.
d, Growth inhibition (left two panels) and IFNβ
ELISA (right panel) of control and Adar1-null B16 tumour
cells modified to delete Ifnar2, Ifngr1 or Stat1
(n = 3 for each condition; data representative of three
independent experiments). e, IFNβ secretion in vitro
following irradiation with 4 Gy in Adar1-null and control
B16 tumour cells with and without IFNAR-blocking antibodies (left). Growth
and viability of Adar1-null and control B16 tumour cells in
vitro following irradiation with 4 Gy with and without IFNAR-blocking
antibodies (right). For both plots: n = 3 for each
condition; data are representative of two independent experiments.
f, Survival analysis corresponding to the tumour volume
curves depicted in Fig. 3h of
Adar1 and control tumours treated with therapeutic
irradiation. n = 10 mice for each group. Data are
representative of two independent experiments. g, Tumour volume
and survival analysis of control and Adar1-null B16 tumours
treated with topical imiquimod. Data are representative of two independent
experiments with n = 10 mice per group. b,
e and tumour volume curves, two-sided Student’s
t-test; survival curves, log-rank test,
*P < 0.05; **P < 0.01;
***P < 0.001; ****P <
0.0001.