2023
Impaired pre-synaptic plasticity and visual responses in auxilin-knockout mice
Cheng X, Tang Y, Vidyadhara D, Li B, Zimmerman M, Pak A, Nareddula S, Edens P, Chandra S, Chubykin A. Impaired pre-synaptic plasticity and visual responses in auxilin-knockout mice. IScience 2023, 26: 107842. PMID: 37766983, PMCID: PMC10520332, DOI: 10.1016/j.isci.2023.107842.Peer-Reviewed Original ResearchParkinson's diseasePyramidal cell synapsesVisual cortical functionSilicon probe recordingsPrimary visual cortexShort-term facilitationFamilial Parkinson's diseaseCortical dysfunctionMotor deficitsMotor symptomsCell synapsesCortical functionRepetitive stimulationVisual cortexOptokinetic responseReleasable poolProlonged stimulationLayer 4Visual responsesMiceSynaptic vesiclesEye movementsOrientation selectivityDysfunctionFunction mutationsDopamine transporter and synaptic vesicle sorting defects underlie auxilin-associated Parkinson’s disease
Vidyadhara D, Somayaji M, Wade N, Yücel B, Zhao H, Shashaank N, Ribaudo J, Gupta J, Lam T, Sames D, Greene L, Sulzer D, Chandra S. Dopamine transporter and synaptic vesicle sorting defects underlie auxilin-associated Parkinson’s disease. Cell Reports 2023, 42: 112231. PMID: 36920906, PMCID: PMC10127800, DOI: 10.1016/j.celrep.2023.112231.Peer-Reviewed Original ResearchConceptsParkinson's diseaseMotor deficitsDopamine transporterPathogenesis of PDNigral dopaminergic lossProgressive motor deficitsΑ-synuclein pathologyEarly-onset Parkinson's diseaseDopamine sequestrationDopaminergic vulnerabilityDopaminergic lossKO micePresynaptic sitesKO brainNeurochemical analysisDorsal striatumKnockout miceCardinal featuresReuptake kineticsL-DOPADiseaseSynaptic autophagyFunction mutationsDeficitsMice
2017
Synucleins Have Multiple Effects on Presynaptic Architecture
Vargas KJ, Schrod N, Davis T, Fernandez-Busnadiego R, Taguchi YV, Laugks U, Lucic V, Chandra SS. Synucleins Have Multiple Effects on Presynaptic Architecture. Cell Reports 2017, 18: 161-173. PMID: 28052246, PMCID: PMC5510332, DOI: 10.1016/j.celrep.2016.12.023.Peer-Reviewed Original ResearchConceptsParkinson's diseasePD mutationsPresynaptic proteinsSynucleinΑ-synucleinPresynaptic architectureUltrastructural changesAbundant presynaptic proteinPathological functionsPresynaptic cytomatrixImportant orchestratorsProtein phosphorylation changesDiseaseMultiple effectsActive zonePrevious findingsPD mutantsPathogenesisNeurotransmissionSynapse architecturePhosphorylation changesMutationsMice
2005
α-Synuclein Cooperates with CSPα in Preventing Neurodegeneration
Chandra S, Gallardo G, Fernández-Chacón R, Schlüter OM, Südhof TC. α-Synuclein Cooperates with CSPα in Preventing Neurodegeneration. Cell 2005, 123: 383-396. PMID: 16269331, DOI: 10.1016/j.cell.2005.09.028.Peer-Reviewed Original ResearchConceptsAbundant synaptic vesicle proteinsEndogenous synucleinNeuronal survivalNerve terminalsParkinson's diseaseProgressive neurodegenerationSynaptic vesicle proteinsAlpha-synucleinDownstream mechanismsNeurodegenerationVivo activitySNARE complex assemblyCSPalphaTransgenic expressionDiseaseMicePhysiological roleCochaperone functionVesicle proteinsSNARE proteinsComplex assemblyInjuryDeletionSynuclein