Featured Publications
Activation of the CaMKII-Sarm1-ASK1-p38 MAP kinase pathway protects against axon degeneration caused by loss of mitochondria
Ding C, Wu Y, Dabas H, Hammarlund M. Activation of the CaMKII-Sarm1-ASK1-p38 MAP kinase pathway protects against axon degeneration caused by loss of mitochondria. ELife 2022, 11: e73557. PMID: 35285800, PMCID: PMC8920508, DOI: 10.7554/elife.73557.Peer-Reviewed Original ResearchConceptsMAPK pathwayLoss of mitochondriaMitochondrial defectsUnbiased genetic screenMAP kinase pathwayCell-specific activationTrafficking complexGenetic screenCEBP-1Kinase pathwayUnderlying cellular mechanismsCellular mechanismsL-type voltage-gated calcium channelsMitochondriaVoltage-gated calcium channelsPathwayUNCAxon degenerationCaenorhabditisActivationCalcium channelsFurther analysisTraffickingSuppressesCaMKII
2024
Polarized localization of kinesin-1 and RIC-7 drives axonal mitochondria anterograde transport
Wu Y, Ding C, Sharif B, Weinreb A, Swaim G, Hao H, Yogev S, Watanabe S, Hammarlund M. Polarized localization of kinesin-1 and RIC-7 drives axonal mitochondria anterograde transport. Journal Of Cell Biology 2024, 223: e202305105. PMID: 38470363, PMCID: PMC10932739, DOI: 10.1083/jcb.202305105.Peer-Reviewed Original ResearchConceptsKinesin-1C. elegansN-terminal domainRetrograde trafficAnterograde trafficTransport mitochondriaMitochondria transportPolar localizationMiro-1CRISPR engineeringMitochondria localizationDisordered regionsMitochondriaTransport complexMitochondria distributionAxonal transportAnterograde transportAnterograde axonal transportMotor complexMiroAdaptorCRISPRGenes
2023
A kinesin-1 adaptor complex controls bimodal slow axonal transport of spectrin in Caenorhabditis elegans
Glomb O, Swaim G, Munoz LLancao P, Lovejoy C, Sutradhar S, Park J, Wu Y, Cason S, Holzbaur E, Hammarlund M, Howard J, Ferguson S, Gramlich M, Yogev S. A kinesin-1 adaptor complex controls bimodal slow axonal transport of spectrin in Caenorhabditis elegans. Developmental Cell 2023, 58: 1847-1863.e12. PMID: 37751746, PMCID: PMC10574138, DOI: 10.1016/j.devcel.2023.08.031.Peer-Reviewed Original ResearchStructure-function analysis of ceTIR-1/hSARM1 explains the lack of Wallerian axonal degeneration in C. elegans
Khazma T, Grossman A, Guez-Haddad J, Feng C, Dabas H, Sain R, Weitman M, Zalk R, Isupov M, Hammarlund M, Hons M, Opatowsky Y. Structure-function analysis of ceTIR-1/hSARM1 explains the lack of Wallerian axonal degeneration in C. elegans. Cell Reports 2023, 42: 113026. PMID: 37635352, PMCID: PMC10675840, DOI: 10.1016/j.celrep.2023.113026.Peer-Reviewed Original ResearchConceptsC. elegansCryoelectron microscopy structureNematode C. elegansC. elegans neuronsStructure-function analysisMicroscopy structureNADase activityMolecular mechanismsElegansCellular NADModel animalsSpeciesAxon degenerationWallerian axonal degenerationOrthologsOctamerProteinSARM1DivergenceNADSARMExpressionActivityAxonal degeneration
2016
Inhibiting poly(ADP-ribosylation) improves axon regeneration
Byrne AB, McWhirter RD, Sekine Y, Strittmatter SM, Miller DM, Hammarlund M. Inhibiting poly(ADP-ribosylation) improves axon regeneration. ELife 2016, 5: e12734. PMID: 27697151, PMCID: PMC5050021, DOI: 10.7554/elife.12734.Peer-Reviewed Original ResearchConceptsNovel intrinsic regulatorAxon regenerationDLK functionChemical inhibitionIntrinsic regulatorRegeneration pathwayPARG expressionIntrinsic regenerative potentialDLK signalingCritical functionsPARGRegenerative potentialPARP inhibitorsProteinPARPMammalian cortical neuronsRegenerationMotor neuronsGABA neuronsPolymeraseCortical neuronsSignalingRegulatorSpeciesNeuronsAxon regeneration in C. elegans: Worming our way to mechanisms of axon regeneration
Byrne AB, Hammarlund M. Axon regeneration in C. elegans: Worming our way to mechanisms of axon regeneration. Experimental Neurology 2016, 287: 300-309. PMID: 27569538, PMCID: PMC5136328, DOI: 10.1016/j.expneurol.2016.08.015.Peer-Reviewed Original ResearchConceptsC. elegansC. elegans researchC. elegans modelSimple nervous systemMammalian nervous systemConserved genomeElegansElegans modelRegeneration responseAxon regenerationCellular mechanismsRegeneration researchTransparent bodyNervous systemRegenerationGenomeFundamental questionsSpeciesMechanismTechnical advancesRegeneration studiesPotential future directions
2015
RNA ligation in neurons by RtcB inhibits axon regeneration
Kosmaczewski SG, Han SM, Han B, Meyer B, Baig HS, Athar W, Lin-Moore AT, Koelle MR, Hammarlund M. RNA ligation in neurons by RtcB inhibits axon regeneration. Proceedings Of The National Academy Of Sciences Of The United States Of America 2015, 112: 8451-8456. PMID: 26100902, PMCID: PMC4500288, DOI: 10.1073/pnas.1502948112.Peer-Reviewed Original Research
2014
Axon regeneration in C. elegans
Hammarlund M, Jin Y. Axon regeneration in C. elegans. Current Opinion In Neurobiology 2014, 27: 199-207. PMID: 24794753, PMCID: PMC4122601, DOI: 10.1016/j.conb.2014.04.001.Peer-Reviewed Original ResearchAxon Regeneration Genes Identified by RNAi Screening in C. elegans
Nix P, Hammarlund M, Hauth L, Lachnit M, Jorgensen EM, Bastiani M. Axon Regeneration Genes Identified by RNAi Screening in C. elegans. Journal Of Neuroscience 2014, 34: 629-645. PMID: 24403161, PMCID: PMC3870940, DOI: 10.1523/jneurosci.3859-13.2014.Peer-Reviewed Original ResearchConceptsRNAi-based screenCandidate gene screenAnalysis of mutantsGrowth-inhibiting functionComplex molecular eventsCell-intrinsic factorsCaenorhabditis elegansC. elegansAxon regenerationGene candidatesRNAi screeningMembrane dynamicsMAP kinaseΒ-spectrinRegeneration genesGene screenMolecular eventsGenesElegansRobust regenerationMature neuronsMutantsMammalian CNSAntagonistic activityPathway
2012
Neural Regeneration in Caenorhabditis elegans
Bejjani R, Hammarlund M. Neural Regeneration in Caenorhabditis elegans. Annual Review Of Genetics 2012, 46: 499-513. PMID: 22974301, PMCID: PMC3700416, DOI: 10.1146/annurev-genet-110711-155550.Peer-Reviewed Original ResearchNotch Signaling Inhibits Axon Regeneration
Bejjani R, Hammarlund M. Notch Signaling Inhibits Axon Regeneration. Neuron 2012, 73: 268-278. PMID: 22284182, PMCID: PMC3690129, DOI: 10.1016/j.neuron.2011.11.017.Peer-Reviewed Original Research
2009
Axon Regeneration Requires a Conserved MAP Kinase Pathway
Hammarlund M, Nix P, Hauth L, Jorgensen EM, Bastiani M. Axon Regeneration Requires a Conserved MAP Kinase Pathway. Science 2009, 323: 802-806. PMID: 19164707, PMCID: PMC2729122, DOI: 10.1126/science.1165527.Peer-Reviewed Original ResearchMeSH KeywordsAgingAnimalsAxonsAxotomyCaenorhabditis elegansCaenorhabditis elegans ProteinsGamma-Aminobutyric AcidGrowth ConesMAP Kinase Kinase 4MAP Kinase Kinase KinasesMAP Kinase Signaling SystemMitogen-Activated Protein KinasesModels, BiologicalMotor NeuronsMutationNerve RegenerationRNA InterferenceConceptsCell-intrinsic regeneration pathwaysKinase pathwayCaenorhabditis elegans motor neuronsMitogen-activated protein kinase pathwayMAP kinase cascadeMAP kinase pathwayProtein kinase pathwayGrowth cone migrationKinase cascadeRegeneration pathwayCone migrationLater stepsLack of activationDevelopment of therapiesMature neuronsPathwayAplastic statesMost neuronsRegenerationMotor neuronsAxon injuryAxon regenerationNeuron functionActivationNeurons
2000
Mutations in β-Spectrin Disrupt Axon Outgrowth and Sarcomere Structure
Hammarlund M, Davis W, Jorgensen E. Mutations in β-Spectrin Disrupt Axon Outgrowth and Sarcomere Structure. Journal Of Cell Biology 2000, 149: 931-942. PMID: 10811832, PMCID: PMC2174563, DOI: 10.1083/jcb.149.4.931.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAxonsCaenorhabditis elegansCaenorhabditis elegans ProteinsCell MembraneCell PolarityDNA PrimersDNA, ComplementaryEpithelial CellsGenes, HelminthGenes, ReporterGreen Fluorescent ProteinsIntestinesIntracellular MembranesLuminescent ProteinsMolecular Sequence DataMutationSarcomeresSequence Homology, Amino AcidSpectrinSynaptic VesiclesConceptsCell polarityBeta spectrinMembrane skeletonCell membraneCaenorhabditis elegans homologueMost animal cellsSpecific membrane proteinsMembrane integrityAxon outgrowthNull mutantsMembrane proteinsAnimal cellsAbnormal axon outgrowthPlasma membraneSarcomere structureProteinDense bodiesMembraneOutgrowthMajor componentMyofilament latticeMutantsHomologuesGenesPolarity