0000000000756949

AUTHOR

Joan Massagué

showing 3 related works from this author

TMOD-36. PRECISE INVESTIGATION OF CANCER STEM CELLS IN A MOUSE GLIOBLASTOMA MODEL

2018

Cancer stem cells (CSCs) have been shown to play a critical role in glioblastoma (GBM) pathogenesis. However, a precise and thorough understanding of these cells is still lacking. Here we design a novel mouse model to label, purify, and study cancer stem cells in vivo. Firstly we generate and characterize a new transgene to label neural stem/progenitor cells in the subventricular zone (SVZ) with GFP, and drive expression of CreERT2 and human diphtheria toxin receptor in the same cells (CGD: nestin-CreERT2-H2BeGFP-hDTR). Following analysis with both bulk and single cell RNA sequencing of the SVZ tissue demonstrate its faithful expression in the stem/progenitor cell compartment. We then cross…

Cancer ResearchAbstractsText miningOncologybusiness.industryMouse GlioblastomaCancer stem cellCancer researchNeurology (clinical)Biologybusiness
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Diverse cell surface protein ectodomains are shed by a system sensitive to metalloprotease inhibitors.

1996

The extracellular domains of a diverse group of membrane proteins are shed in response to protein kinase C activators such as phorbol 12-myristate 13-acetate (PMA). The lack of sequence similarity in the cleavage sites suggests the involvement of many proteases of diverse specificity in this process. However, a mutant Chinese hamster ovary cell line recently isolated for being defective in PMA-activated shedding of the membrane-anchored growth factor transforming growth factor alpha precursor (proTGF-alpha) is concomitantly defective in the shedding of many other unrelated membrane proteins. Here we show that independent mutagenesis and selection experiments yield shedding mutants having th…

ProteasesCellCHO CellsBiologyHydroxamic AcidsTransfectionBiochemistryAmyloid beta-Protein PrecursorAntigens CDCricetinaemedicineAnimalsProtease InhibitorsL-SelectinProtein PrecursorsCell adhesionMolecular BiologyProtein kinase CMetalloproteinaseChinese hamster ovary cellCell MembraneGenetic Complementation TestMembrane ProteinsMetalloendopeptidasesCell BiologyReceptors InterleukinTransforming Growth Factor alphaReceptors Interleukin-6Cell biologyKineticsmedicine.anatomical_structurePhenotypeEctodomainMembrane proteinMutagenesisTetradecanoylphorbol AcetatePhenanthrolinesThe Journal of biological chemistry
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Abstract 3015: Precise investigation of cancer stem cells in mouse glioblastoma

2018

Abstract In this study, we employ mouse models to investigate features and roles of cancer stem cells (CSCs) in glioblastoma (GBM). A nestin-TK-GFP transgene is firstly used to label CSCs in a fully penetrant mouse model of GBM (M7: hGFAP-Cre; Nf1fl/+; p53fl/fl; Ptenfl/+). Food-mediated ganciclovir (GCV) delivery kills proliferative transgene positive cells and significantly prolongs the lives of the transgene bearing mice. Isolation and transplantation of the tumor cells indicates the GFP+ cells are more tumorigenic than the GFP- cells. We then generate and characterize a novel transgene (CGD: nestin-CreERT2-H2BeGFP-hDTR) that labels all the neural stem/progenitor cells in the subventricul…

Cancer ResearchTemozolomideTransgeneSubventricular zoneCancerBiologymedicine.diseaseGreen fluorescent proteinTransplantationmedicine.anatomical_structureOncologyCancer stem cellCancer researchmedicineProgenitor cellmedicine.drugCancer Research
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