Figure 6.
HoxA5 expression is enriched in mouse and human recurrent glioblastomas. (A) Post-radiation recurrent mouse PDGF-driven glioblastomas have approximately fivefold increased HoxA5 mRNA compared with primary glioblastomas. (B) Immunohistochemical quantification determines that Myc-tagged HoxA5, but not Myc-tagged mCherry, represents increased percentage of RCAS-infected cells in post-radiation recurrent mouse glioblastomas. (C) HOXA5 expression in recurrent human IDH wild-type glioblastomas is highest in the proneural (PN) transcriptional subtype (n = 19) compared with mesenchymal (MES; n = 22), classical (CL; n = 14), and neural (NEU; n = 19). (D) Recurrent human IDH wild-type glioblastomas exhibit HOXA5 mRNA enrichment in proneural and classical transcriptional subtypes compared with their matched primary tumors.