Search Results - "Summers, Daniel W"
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Axon Self-Destruction: New Links among SARM1, MAPKs, and NAD+ Metabolism
Published in Neuron (Cambridge, Mass.) (03-02-2016)“…Wallerian axon degeneration is a form of programmed subcellular death that promotes axon breakdown in disease and injury. Active degeneration requires SARM1…”
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TIR Domain Proteins Are an Ancient Family of NAD+-Consuming Enzymes
Published in Current biology (05-02-2018)“…The Toll/interleukin-1 receptor (TIR) domain is the signature signaling domain of Toll-like receptors (TLRs) and their adaptors, serving as a scaffold for the…”
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Sarm1-mediated axon degeneration requires both SAM and TIR interactions
Published in The Journal of neuroscience (14-08-2013)“…Axon degeneration is an evolutionarily conserved pathway that eliminates damaged or unneeded axons. Manipulation of this poorly understood pathway may allow…”
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Palmitoylation enables MAPK-dependent proteostasis of axon survival factors
Published in Proceedings of the National Academy of Sciences - PNAS (11-09-2018)“…Axon degeneration is a prominent event in many neurodegenerative disorders. Axon injury stimulates an intrinsic self-destruction program that culminates in…”
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SARM1-specific motifs in the TIR domain enable NAD⁺ loss and regulate injury-induced SARM1 activation
Published in Proceedings of the National Academy of Sciences - PNAS (11-10-2016)“…Axon injury in response to trauma or disease stimulates a self-destruction program that promotes the localized clearance of damaged axon segments. Sterile…”
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Gene therapy targeting SARM1 blocks pathological axon degeneration in mice
Published in The Journal of experimental medicine (04-02-2019)“…Axonal degeneration (AxD) following nerve injury, chemotherapy, and in several neurological disorders is an active process driven by SARM1, an injury-activated…”
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Microtubules, Membranes, and Movement: New Roles for Stathmin‐2 in Axon Integrity
Published in Journal of neuroscience research (01-09-2024)“…ABSTRACT Neurons establish functional connections responsible for how we perceive and react to the world around us. Communication from a neuron to its target…”
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MAPK signaling promotes axonal degeneration by speeding the turnover of the axonal maintenance factor NMNAT2
Published in eLife (17-01-2017)“…Injury-induced (Wallerian) axonal degeneration is regulated via the opposing actions of pro-degenerative factors such as SARM1 and a MAPK signal and…”
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The Type II Hsp40 Sis1 cooperates with Hsp70 and the E3 ligase Ubr1 to promote degradation of terminally misfolded cytosolic protein
Published in PloS one (16-01-2013)“…Mechanisms for cooperation between the cytosolic Hsp70 system and the ubiquitin proteasome system during protein triage are not clear. Herein, we identify new…”
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10
Loss of Sarm1 reduces retinal ganglion cell loss in chronic glaucoma
Published in Acta neuropathologica communications (08-02-2024)“…Glaucoma is one of the leading causes of irreversible blindness worldwide and vision loss in the disease results from the deterioration of retinal ganglion…”
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The SARM1 Toll/Interleukin-1 Receptor Domain Possesses Intrinsic NAD+ Cleavage Activity that Promotes Pathological Axonal Degeneration
Published in Neuron (Cambridge, Mass.) (22-03-2017)“…Axonal degeneration is an early and prominent feature of many neurological disorders. SARM1 is the central executioner of the axonal degeneration pathway that…”
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Mitochondrial dysfunction induces Sarm1-dependent cell death in sensory neurons
Published in The Journal of neuroscience (09-07-2014)“…Mitochondrial dysfunction is the underlying cause of many neurological disorders, including peripheral neuropathies. Mitochondria rely on a proton gradient to…”
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13
The Type I Hsp40 Ydj1 Utilizes a Farnesyl Moiety and Zinc Finger-like Region to Suppress Prion Toxicity
Published in The Journal of biological chemistry (06-02-2009)“…Type I Hsp40s are molecular chaperones that protect neurons from degeneration by modulating the aggregation state of amyloid-forming proteins. How Type I…”
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Identification of a consensus motif in substrates bound by a Type I Hsp40
Published in Proceedings of the National Academy of Sciences - PNAS (07-07-2009)“…Protein aggregation is a hallmark of a large and diverse number of conformational diseases. Molecular chaperones of the Hsp40 family (Escherichia coli DnaJ…”
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DLK Activation Synergizes with Mitochondrial Dysfunction to Downregulate Axon Survival Factors and Promote SARM1-Dependent Axon Degeneration
Published in Molecular neurobiology (01-02-2020)“…Axon degeneration is a prominent component of many neurological disorders. Identifying cellular pathways that contribute to axon vulnerability may identify new…”
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The Stathmin-2 membrane-targeting domain is required for axon protection and regulated degradation by DLK signaling
Published in The Journal of biological chemistry (01-07-2023)“…Axon integrity is essential for functional connectivity in the nervous system. The degeneration of stressed or damaged axons is a common and sometimes…”
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Molecular chaperones antagonize proteotoxicity by differentially modulating protein aggregation pathways
Published in Prion (01-04-2009)“…The self-association of misfolded or damaged proteins into ordered amyloid-like aggregates characterizes numerous neurodegenerative disorders. Insoluble…”
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Prion propagation by Hsp40 molecular chaperones
Published in Prion (01-04-2009)“…Molecular chaperones regulate essential steps in the propagation of yeast prions. Yeast prions possess domains enriched in glutamines and asparagines that act…”
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Transcription errors induce proteotoxic stress and shorten cellular lifespan
Published in Nature communications (25-08-2015)“…Transcription errors occur in all living cells; however, it is unknown how these errors affect cellular health. To answer this question, we monitor yeast cells…”
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Polypeptide transfer from Hsp40 to Hsp70 molecular chaperones
Published in Trends in biochemical sciences (Amsterdam. Regular ed.) (01-05-2009)“…Heat shock protein 40 (Hsp40) co-chaperones assist in cellular protein folding and degradation through the binding and delivery of non-native proteins to heat…”
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