48 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    DYRK1A interacts with the tuberous sclerosis complex and promotes mTORC1 activity

    Pinhua Wang, Sunayana Sarkar ... Man Mohan
    DYRK1A, a kinase associated with intellectual developmental disorders and organ growth regulation, functions in cell growth by promoting mTORC1 activity.
    1. Cancer Biology

    Tsc2 disruption in mesenchymal progenitors results in tumors with vascular anomalies overexpressing Lgals3

    Peter J Klover, Rajesh L Thangapazham ... Thomas N Darling
    Tsc2 inactivation in mouse mesenchymal progenitors produced tumors with vascular anomalies reminiscent of human angiomyolipomas, and a gene expression signature in Tsc2-deficient tissues which included Lgals3, as a novel potential biomarker for TSC1/2 loss.
    1. Neuroscience

    Loss of Tsc1 in cerebellar Purkinje cells induces transcriptional and translation changes in FMRP target transcripts

    Jasbir Singh Dalal, Kellen Diamond Winden ... Mustafa Sahin
    Tsc1 mutation in cerebellar Purkinje cells leads to downregulation of synapse genes that are targets of the Fragile X Mental Retardation Protein.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Snf1/AMPK promotes the formation of Kog1/Raptor-bodies to increase the activation threshold of TORC1 in budding yeast

    James E Hughes Hallett, Xiangxia Luo, Andrew P Capaldi
    The key Target of Rapamycin Complex (TORC1) component Kog1 moves into bodies during glucose starvation to limit reactivation of the complex.
    1. Chromosomes and Gene Expression

    A twin UGUA motif directs the balance between gene isoforms through CFIm and the mTORC1 signaling pathway

    R Samuel Herron, Alexander K Kunisky ... Hun-Way Hwang
    Genetics and biochemical analyses reveal an evolutionarily conserved mechanism to regulate gene isoform expression by mTORC1 and implicate possible gene isoform imbalance in cancer and neurological disorders with mTORC1 pathway dysregulation.
    1. Neuroscience
    2. Physics of Living Systems

    Label-free three-photon imaging of intact human cerebral organoids for tracking early events in brain development and deficits in Rett syndrome

    Murat Yildirim, Chloe Delepine ... Mriganka Sur
    Label-free three-photon imaging of whole, uncleared intact organoids generated from Rett syndrome patients show shorter migration distances and slower migration speeds of mutant radially migrating neurons with more tortuous trajectories.
    1. Developmental Biology

    mTORC1-induced retinal progenitor cell overproliferation leads to accelerated mitotic aging and degeneration of descendent Müller glia

    Soyeon Lim, You-Joung Kim ... Jin Woo Kim
    Comprehensive mouse genetic analyses show, by having mTORC1 constitutively active, a RPC divides and exhausts mitotic capacity faster than neighboring RPCs, and thus produces retinal cells that degenerate with aging-related changes in the mature mouse retina.
    1. Cancer Biology
    2. Cell Biology

    The mTORC1-mediated activation of ATF4 promotes protein and glutathione synthesis downstream of growth signals

    Margaret E Torrence, Michael R MacArthur ... Brendan D Manning
    ATF4 is a metabolic effector of mTORC1 signaling, co-opted to induce gene targets involved in amino acid synthesis, uptake, and tRNA charging, contributing to mTORC1-driven protein and glutathione synthesis.
    1. Neuroscience
    2. Stem Cells and Regenerative Medicine

    mTOR signaling regulates the morphology and migration of outer radial glia in developing human cortex

    Madeline G Andrews, Lakshmi Subramanian, Arnold R Kriegstein
    mTOR signaling regulates the morphology of a human-enriched neural stem cell population and thus contributes to the radial architecture of the developing human cortex with implications for neurodevelopmental disease.
    1. Neuroscience

    Large-scale animal model study uncovers altered brain pH and lactate levels as a transdiagnostic endophenotype of neuropsychiatric disorders involving cognitive impairment

    Hideo Hagihara, Hirotaka Shoji ... Tsuyoshi Miyakawa
    Brain lactate and pH changes, identified as common features in diverse neuropsychiatric animal models, may represent transdiagnostic endophenotypes associated with cognitive impairment.

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