Project description:4C-seq was performed to assess genomic contacts with the SOX2 protmoter, human neural stem cells with no oncogenic alterations were compared to those with concurrent IDH1-R132H overexpression, P53 shRNA knockdown and ATRX shRNA knockdown.
Project description:We developed genetically engineered mice to generate brain tumors with especific genetic lessions. The animals were split in three groups: NRAS, P53 knockdown, IDH1-R132H and ATRX knock down (NPAID); NRAS, P53 knockdown, IDH1-R132H (NPI); NRAS, P53 knockdown, (NshP53). From these tumor we obtain and culture tumor cells growth like neurospheres and attached cells.
Project description:IDH1-R132H is expressed in Low Grade Glioma (LGG) in combination with mutation in ATRX and TP53 genes. IDH1-R132H results in gain of function with production of 2-hydroxygluatrate, that in turn generates a hypermethylatyed phenotype in DNA and histone with consequences in epigenetic regulation of gene expression. Here we will compare the gene expression profile between IDH1-R132H and IDH1 Wt tumor neurospheres.
Project description:IDH1-R132H is expressed in Low Grade Glioma (LGG) in combination with loss of function mutation in ATRX and TP53 genes. IDH1-R132H results in gain of function with production of 2-hydroxygluatrate, that in turn generates a hypermethylatyed phenotype in DNA and histone with consequences in epigenetic regulation of gene expression. Here we will compare the gene expression profile between IDH1-R132H and IDH1 Wt LLG animal brain tumors in reponse to radiation
Project description:IDH1-R132H is expressed in Low Grade Glioma (LGG) in combination with loss of function mutation in ATRX and TP53 genes. IDH1-R132H results in gain of function with production of 2-hydroxygluatrate, that in turn generates a hypermethylated phenotype in DNA and histone with consequences in epigenetic regulation of gene expression. Here we will compare the gene expression profile between IDH1-R132H and IDH1 Wt LLG moribund animal brain tumors and identify key genes responsible for the phenotype of this subtype of glioma.
Project description:Evaluation of 2HG and a-ketoglutarate in tumor neurospheres (NS) genertated from the mice brain tumors haboring specific genetic lesions: NRAS overexpression, p53 knockdown plus or minus IDH1 mutated and ATRX knockdown.
Project description:Methylation profiling was performed to assess methylation alterations by the addition of serial oncogenic hits (mutant-IDH1, P53 knockdown and ATRX knockdown) in human neural stem cells.
