25 results found
    1. Neuroscience

    Optical dopamine monitoring with dLight1 reveals mesolimbic phenotypes in a mouse model of neurofibromatosis type 1

    J Elliott Robinson, Gerard M Coughlin ... Viviana Gradinaru
    Heterozygous Nf1 knockout mice exhibit distinct dopaminergic phenotypes in vivo, as revealed by the genetically encoded dopamine sensor dLight1, patch clamp electrophysiology, optogenetics, and novel viral tools for morphological analysis.
    1. Developmental Biology

    Transient inhibition of the ERK pathway prevents cerebellar developmental defects and improves long-term motor functions in murine models of neurofibromatosis type 1

    Edward Kim, Yuan Wang ... Yuan Zhu
    Nf1 is required during early, but not late, cerebellar development to facilitate neuronal lamination, providing a potential therapeutic prevention strategy for NF1-associated developmental abnormalities.
    1. Cancer Biology

    P2RY14 cAMP signaling regulates Schwann cell precursor self-renewal, proliferation, and nerve tumor initiation in a mouse model of neurofibromatosis

    Jennifer Patritti Cram, Jianqiang Wu ... Nancy Ratner
    In a mouse model of neurofibromatosis type 1, the purinergic receptor P2RY14 is a key regulator of Schwann cell precursor self-renewal and proliferation, of neurofibroma tumor initiation and of mouse survival.
    1. Cancer Biology

    Detection of malignant peripheral nerve sheath tumors in patients with neurofibromatosis using aneuploidy and mutation identification in plasma

    Austin K Mattox, Christopher Douville ... Chetan Bettegowda
    Detection of aneuploidy and/or mutations in ctDNA may represent a promising approach to detecting patients with MPNST.
    1. Cell Biology
    2. Developmental Biology

    Loss of neurofibromin Ras-GAP activity enhances the formation of cardiac blood islands in murine embryos

    Amanda D Yzaguirre, Arun Padmanabhan ... Jonathan A Epstein
    Ras-GAP activity suppresses the hemogenic potential of the embryonic heart.
    1. Cancer Biology

    NF1 regulates mesenchymal glioblastoma plasticity and aggressiveness through the AP-1 transcription factor FOSL1

    Carolina Marques, Thomas Unterkircher ... Massimo Squatrito
    Neurofibromatosis type 1 gene (NF1) signaling is causally linked to the acquisition of a mesenchymal gene expression program in gliomas through the regulation of the AP-1 transcription factor FOSL1.
    1. Cancer Biology
    2. Genetics and Genomics

    Cross-species analysis of LZTR1 loss-of-function mutants demonstrates dependency to RIT1 orthologs

    Antonio Cuevas-Navarro, Laura Rodriguez-Muñoz ... Pau Castel
    Biochemical and genetic analysis of the functional relationship between RIT1 and its regulatory protein, LZTR1, across various model organisms helps define the substrate specificity of LZTR1 for RAS GTPases.
    1. Cell Biology

    Neurofibromin controls macropinocytosis and phagocytosis in Dictyostelium

    Gareth Bloomfield, David Traynor ... Robert R Kay
    Inactivation of the Dictyostelium orthologue of the tumour suppressor Neurofibromin (NF1) enables amoebae to ingest dissolved nutrients using macropinocytosis more rapidly, and to prey on larger organisms using phagocytosis.
    1. Cell Biology
    2. Neuroscience

    Giant ankyrin-B mediates transduction of axon guidance and collateral branch pruning factor sema 3A

    Blake A Creighton, Simone Afriyie ... Damaris N Lorenzo
    Giant ankyrin-B enables the transduction of Sema 3A repelling cues and is important for normal axonal connectivity.
    1. Neuroscience

    p21-activated kinase 1 restricts tonic endocannabinoid signaling in the hippocampus

    Shuting Xia, Zikai Zhou ... Zhengping Jia
    PAK1 regulates inhibitory synaptic transmission in mice through a cyclooxygenase-2 dependent restriction in tonic, but not phasic, secretion of endocannabinoids.

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