Moreover, our finding that in a GFAP-Cretg/+;p53fl/fl;Rbfl/fl mouse model, the conditional ablation of all Pcdh10 isoforms (including the first exon of 2610316D01Rik) resulted in similar enhanced tumorigenicity, i.e. increased formation of medulloblastoma and pinnal tumors, as the ablation of only long Pcdh10 isoforms indicates strongly that the involvement of 2610316D01Rik was minor or even nihil. Here, GFAP is linked to medulloblastoma.