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A mouse model of the most aggressive subgroup of human medulloblastoma [HT_MG-430_PM]

ABSTRACT: A series of mouse models designed to mimic pediatric medulloblastoma types in humans were tested by microarray and compared to published human medulloblastoma data

ORGANISM(S): Mus musculus

PROVIDER: GSE33200 | GEO | 2012/02/29

SECONDARY ACCESSION(S): PRJNA156635

REPOSITORIES: GEO

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A mouse model of the most aggressive subgroup of human medulloblastoma [HT_MG-430_PM]

Project description:A series of mouse models designed to mimic pediatric medulloblastoma types in humans were tested by microarray and compared to published human medulloblastoma data Myc-type tumors [dka201-203] were generated by orthotopic injection of Myc-infected cerebellar cells from Cdkn2c-/-, Trp53-/-, Atoh1-GFP mice into the cerebral cortex of immunocompromised nude mice. For Shh-type medulloblastomas [dka204-206], spontaneous medulloblastomas from [Cdkn2c-/-; Trp53Fl/Fl; Nestin-Cre] (Uziel et al.,2005 Genes Dev) were used. FACS-sorted GFP-positive [dka220-222] and GFP-negative [dka211, 212 and 219] populations were obtained from postnatal day 6 Cdkn2c-/-, Trp53-/-, Atoh1-GFP cerebella. Myc-type secondary tumors [dka223-225] were generated by orthotopic transplantation of cultured sphere cells from Myc-type primary tumors.

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A mouse model of the most aggressive subgroup of human medulloblastoma

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Project description:Mouse models of medulloblastoma are compared to human subgroups through microarray expression and other measures This study contrasts mouse medullablastomas from a range of mouse genetic models. For Shh-type medulloblastoma [dka001-005, 009, 033 and 034] and [dka050-057], spontaneous medulloblastomas from [Cdkn2c-/-; Trp53Fl/Fl; Nestin-Cre] and [Cdkn2c-/-; Ptch1+/-] (Uziel et al.,2005 Genes Dev) were used, respectively. For Myc [dka010-022, 037, 046, 049 and 058-71] and Mycn [dka023-032, 036 and 047] were generated by orthotopic injection of either Myc or Mycn overexpression in Cdkn2c-/-, Trp53-/- cerebellar cells into immunocompromised nude mice. For Wnt-type medulloblastomas [pgr003, 016 and 066], spontaneously developed tumors from CTNNB1+/lox (ex3); BLBP-Cre; Trp53Fl/Fl (Gibson et al., Nature, 2010) were removed for RNA extraction.

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Subgroup specific somatic copy number aberrations in the medulloblastoma genome

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Gene expression data from medulloblastoma tumor samples

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