Publications by authors named "D MITCHELL"

Mutation or deletion of the deubiquitinase USP7 causes Hao-Fountain syndrome (HAFOUS), which is characterized by speech delay, intellectual disability, and aggressive behavior and highlights important unknown roles of USP7 in the nervous system. Here, we conditionally delete USP7 in glutamatergic neurons in the mouse forebrain, triggering disease-relevant phenotypes, including sensorimotor deficits, impaired cognition, and aggressive behavior. Although USP7 deletion induces p53-dependent neuronal apoptosis, most behavioral abnormalities in USP7 conditional knockout mice persist following p53 loss.

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Acute liver failure is a rapidly progressing, life-threatening condition most commonly caused by an overdose of acetaminophen (paracetamol). The antidote, N-acetylcysteine (NAC), has limited efficacy when liver injury is established. If acute liver damage is severe, liver failure can rapidly develop with associated high mortality rates.

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Article Synopsis
  • Pancreatic ductal adenocarcinoma (PDAC) is characterized by a rigid extracellular matrix (ECM) that has specific properties like high stiffness and a quick ability to relax from stress, which this study aims to replicate using gelatin-based hydrogels.
  • The researchers created these hydrogels with varying stiffness and stress relaxation by manipulating the cross-linking methods and materials, allowing them to better mimic the conditions found in PDAC tissues.
  • Experiments showed that the fast-relaxing hydrogels promoted PDAC cell growth and other cancer traits, and blocking a certain protein (integrin β1) changed tumor behavior, suggesting integrin β1 could be a potential target for improving cancer treatment
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