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. 2024 Oct 2;16(11):2882–2917. doi: 10.1038/s44321-024-00148-5

Figure EV2. Neonatal ICM treatment with AAV9/hAP4B1 in Ap4b1-KO mice rescue Calbindin-positive spheroids in the DCN 9 months following treatment.

Figure EV2

The image panel depicts representative micrographs of the DCN within the cerebellum, stained with Calbindin (green) and Hoechst (blue). The first column shows low magnification images of the DCN and surrounding areas, with labels for the Molecular layer (Mo), Purkinje cell layer (Pc), Granular layer (Gr), and deep cerebellar nuclei (DCN). Scale bar 100 µm. A red box indicates the area of higher magnification within the DCN shown in the second column. The micrographs in the second column demonstrate a clear reduction of calbindin-positive spheroids with both AAV9-CBh-hAP4B1 and AAV9-SYN-hAP4B1 vectors. The third column shows nuclear staining with Hoechst, and the fourth column presents a merge of Calbindin and Hoechst stains. Scale bar 50 µm. The bar graph reveals a larger number of spheroids in untreated and control-treated Ap4b1 KO mice compared to no spheroids in the WT mice. These spheroids are significantly reduced with both CBh (p < 0.0001) and SYN (p < 0.0001) treatment vectors 9 months following treatment. Data are presented as mean ± standard error of the mean (SEM), with n = 3. The data were analysed using one-way ANOVA followed by Dunnett’s multiple comparisons test. Stars indicate p ≤ 0.0001 (****).