ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2016
Ablation of Perk in Schwann Cells Improves Myelination in the S63del Charcot-Marie-Tooth 1B Mouse.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 32 citations in OpenAlex.
- Activation of XBP1s attenuates disease severity in models of proteotoxic Charcot-Marie-Tooth type 1B.Brain : a journal of neurology · 2025Article
- Schwann Cell Protein Kinase RNA-like ER Kinase (PERK) Is Not Necessary for the Development of Diabetic Peripheral Neuropathy but Negates the Efficacy of Cemdomespib Therapy.ACS pharmacology & translational science · 2025Article
- Pharmacologically increasing cGMP improves proteostasis and reduces neuropathy in mouse models of CMT1.Cellular and molecular life sciences : CMLS · 2024Article
- Navigating the Landscape of CMT1B: Understanding Genetic Pathways, Disease Models, and Potential Therapeutic Approaches.International journal of molecular sciences · 2024Review
- Knockout of PA200 improves proteasomal degradation and myelination in a proteotoxic neuropathy.Life science alliance · 2024Article
- Activation of XBP1s attenuates disease severity in models of proteotoxic Charcot-Marie-Tooth type 1B.bioRxiv : the preprint server for biology · 2024Article
- Mechanisms and treatment strategies of demyelinating and dysmyelinating Charcot-Marie-Tooth disease.Neural regeneration research · 2023Review
- Runx1/3-driven adaptive endoplasmic reticulum stress pathways contribute to neurofibromagenesis.Oncogene · 2023Article
- Pharmacologic Targeting of the C-Terminus of Heat Shock Protein 90 Improves Neuromuscular Function in Animal Models of Charcot Marie Tooth X1 Disease.ACS pharmacology & translational science · 2023Article
- A novel mouse model of CMT1B identifies hyperglycosylation as a new pathogenetic mechanism.Human molecular genetics · 2022Article
- Raising cGMP restores proteasome function and myelination in mice with a proteotoxic neuropathy.Brain : a journal of neurology · 2022Article
- Mechanisms and Treatments in Demyelinating CMT.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2021Review
- Animal Models as a Tool to Design Therapeutical Strategies for CMT-like Hereditary Neuropathies.Brain sciences · 2021Review
- Wrestling and Wrapping: A Perspective on SUMO Proteins in Schwann Cells.Biomolecules · 2021Review
- Calcineurin Activity Is Increased in Charcot-Marie-Tooth 1B Demyelinating Neuropathy.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021Article
- PERK Pathway and Neurodegenerative Disease: To Inhibit or to Activate?Biomolecules · 2021Review
- Article
- An Integrated Approach to Studying Rare Neuromuscular Diseases Using Animal and Human Cell-Based Models.Frontiers in cell and developmental biology · 2021Review
- Endoplasmic reticulum stress: New insights into the pathogenesis and treatment of retinal degenerative diseases.Progress in retinal and eye research · 2020Review
- Phosphorylation of eIF2α Promotes Schwann Cell Differentiation and Myelination in CMT1B Mice with Activated UPR.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
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Authors and funding
8 authors at 7 institutions in 4 countries.
Funding
Abstract
In factory cells, the accumulation of misfolded protein provokes the unfolded protein response (UPR). For example, deletion of serine 63 (S63del) in myelin protein zero (P0) induces P0 accumulation in the endoplasmic reticulum (ER) of Schwann cells and a persistent UPR associated with Charcot-Marie-Tooth 1B (CMT1B) demyelinating peripheral neuropathy in human and mouse. PERK (protein kinase RNA-like ER kinase) is the ER stress sensor that attenuates global translation by phosphorylating eIF2α. Inhibition of the eIF2α holophosphatase GADD34:PP1, increases the phosphorylation of eIF2α in Schwann cells and largely rescues S63del neuropathy. Nonetheless, reducing phosphorylation of eIF2α, by Perk haploinsufficiency, also ameliorates the myelin defects of S63del nerves. This contradictory finding prompted us to investigate whether the beneficial effect of Perk deficiency on myelination could derive from neurons. To test this hypothesis, we generated and compared Schwann cell- and neuron-specific ablation of Perk in S63del nerves. Our data suggest that the detrimental effect of Perk in CMT1B derives primarily from Schwann cells. Furthermore, we show that Perk loss of function in Schwann cells restores myelination without diminishing accumulation of P0 or markers of ER stress, suggesting that Perk may modulate myelination through a pathway independent of the UPR. SIGNIFICANCE STATEMENT: In many endoplasmic reticulum (ER) stress-related disorders, activation of the unfolded protein sensor protein kinase RNA-like ER kinase (PERK) kinase is beneficial. Nonetheless, in Charcot-Marie-Tooth 1B neuropathy mice, we show that activation of PERK in Schwann cells, but not in neurons, is detrimental for myelination. PERK may interfere with myelination, independent of its role in ER stress.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.