Figure 3.
Ripk3−/−MNs are resistant to Tg SOD1G93A astrocyte-mediated toxicity. MNs, isolated from E12.5 Ripk3+/+or Ripk3−/−mice, were co-cultured on primary astrocyte monolayers from Tg SOD1G93A or NTg mice for 7 d. A, Representative images of MNs assessed using SMI32 immunolabeling. Scale bar: 50 μm. B, Quantification of MN number. Ripk3+/+MN number was significantly reduced on SOD1G93A astrocytes (p = 0.0013) compared to NTg. Ripk3−/−MN number did not differ between NTg or SOD1G93A astrocytes and was significantly increased (p = 0.0370) compared to Ripk3+/+ MN number on SOD1G93A astrocytes. Results are presented as a mean ± SEM. Statistical analysis was performed via two-way ANOVA; n = 3 biological replicates per genotype. *p ≤ 0.05; **p ≤ 0.01.