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Sökning: WFRF:(Largaespada David)

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1.
  • Caglayan, Demet, et al. (författare)
  • Induction of Glioblastoma Multiforme and Gliomatosis Cerebri with a Sleeping Beauty gene transfer system, implications for T regulatory cell involvement during glioma formation.
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • Glioblastoma Multiforme (GBM), the most malignant and common  neoplasm of the central nervous system (CNS), has been classified into subgroups with gene-expression profile as the basis for categorization. Among these the mesenchymal subgroup is most greatly associated with inflammatory infiltrates and increased expression of inflammatory associated genes. GBMs exhibit T cell infiltration to a varying degree and today the degree of infiltration is not used in prognostics. The Sleeping Beauty (SB) system was used to introduce AKT, a mutant variant of NRAS and a shp53 coupled to green fluorescent protein (GFP) into mice that are fully immunocomptetent, lack mature T cells or have reduced regulatory T (Treg) cell function respectively. We report, for the first time, the induction of Gliomatosis Cerebri with the SB system. Tumors that originated were either GBM or Gliomatosis Cerebri with a similar incidence. There was no difference in survival, grade or incidence of induced tumors in wild type mice and mice that lack mature T cells.
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2.
  • Huang, Miller, et al. (författare)
  • Engineering Genetic Predisposition in Human Neuroepithelial Stem Cells Recapitulates Medulloblastoma Tumorigenesis
  • 2019
  • Ingår i: Cell Stem Cell. - : CELL PRESS. - 1934-5909 .- 1875-9777. ; 25:3, s. 433-
  • Tidskriftsartikel (refereegranskat)abstract
    • Human neural stem cell cultures provide progenitor cells that are potential cells of origin for brain cancers. However, the extent to which genetic predisposition to tumor formation can be faithfully captured in stem cell lines is uncertain. Here, we evaluated neuroepithelial stem (NES) cells, representative of cerebellar progenitors. We transduced NES cells with MYCN, observing medulloblastoma upon orthotopic implantation in mice. Significantly, transcriptomes and patterns of DNA methylation from xenograft tumors were globally more representative of human medulloblastoma compared to a MYCN-driven genetically engineered mouse model. Orthotopic transplantation of NES cells generated from Gorlin syndrome patients, who are predis- posed to medulloblastoma due to germline-mutated PTCH1, also generated medulloblastoma. We engineered candidate cooperating mutations in Gorlin NES cells, with mutation of DDX3X or loss of GSE1 both accelerating tumorigenesis. These findings demonstrate that human NES cells provide a potent experimental resource for dissecting genetic causation in medulloblastoma.
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3.
  • Huang, Miller, et al. (författare)
  • Humanized Mouse Models for Medulloblastoma
  • 2013
  • Ingår i: Neuro-Oncology. - 1522-8517 .- 1523-5866. ; 15:S1, s. 30-30
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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  • Resultat 1-3 av 3

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