2021
QSM is an imaging biomarker for chronic glial activation in multiple sclerosis lesions
Gillen KM, Mubarak M, Park C, Ponath G, Zhang S, Dimov A, Levine‐Ritterman M, Toro S, Huang W, Amici S, Kaunzner UW, Gauthier SA, Guerau‐de‐Arellano M, Wang Y, Nguyen TD, Pitt D. QSM is an imaging biomarker for chronic glial activation in multiple sclerosis lesions. Annals Of Clinical And Translational Neurology 2021, 8: 877-886. PMID: 33704933, PMCID: PMC8045922, DOI: 10.1002/acn3.51338.Peer-Reviewed Original ResearchConceptsNormal-appearing white matterMyeloid cellsLesion rimReactive oxygen speciesQuantitative susceptibility mappingChronic active lesionsChronic glial activationPro-inflammatory cytokinesBlood-brain barrierWhite matter lesionsAdjacent normal-appearing white matterMultiple sclerosis lesionsGlial activationActivated microgliaHistopathological correlatesChronic inflammationActive lesionsCytokine productionMatter lesionsMS lesionsWhite matterHuman-induced pluripotent stem cellsSclerosis lesionsLesionsLesion perimeter
2019
The landscape of myeloid and astrocyte phenotypes in acute multiple sclerosis lesions
Park C, Ponath G, Levine-Ritterman M, Bull E, Swanson EC, De Jager PL, Segal BM, Pitt D. The landscape of myeloid and astrocyte phenotypes in acute multiple sclerosis lesions. Acta Neuropathologica Communications 2019, 7: 130. PMID: 31405387, PMCID: PMC6689891, DOI: 10.1186/s40478-019-0779-2.Peer-Reviewed Original ResearchConceptsMultiple sclerosis lesionsLesion rimAstrocyte phenotypeMyeloid cellsSclerosis lesionsActive multiple sclerosis lesionsAcute multiple sclerosis lesionsGlial activation markersActive MS lesionsNovel therapeutic targetDifferent lesion stagesPredominant cell typeAcute demyelinationDemyelinating lesionsCell typesActivation markersChronic inflammationDistinct myeloidCell-extrinsic factorsGlial cellsPhenotypic subsetsLesion stageGlial phenotypeMS lesionsLesion cells
2018
Myeloid cell plasticity in the evolution of central nervous system autoimmunity
Giles DA, Washnock‐Schmid J, Duncker PC, Dahlawi S, Ponath G, Pitt D, Segal BM. Myeloid cell plasticity in the evolution of central nervous system autoimmunity. Annals Of Neurology 2018, 83: 131-141. PMID: 29283442, PMCID: PMC5876132, DOI: 10.1002/ana.25128.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsArginaseAutoimmune Diseases of the Nervous SystemBone Marrow CellsCell PlasticityChimeraDisease ProgressionEncephalomyelitis, Autoimmune, ExperimentalHumansImmunohistochemistryLectins, C-TypeMannose ReceptorMannose-Binding LectinsMiceMice, Inbred C57BLMultiple SclerosisMyeloid CellsNitric Oxide Synthase Type IIPhenotypeReceptors, Cell SurfaceConceptsInducible nitric oxide synthaseExperimental autoimmune encephalomyelitisCNS myeloid cellsCentral nervous systemCentral nervous system autoimmunityChronic active MS lesionsActive MS lesionsMultiple sclerosisMyeloid cellsMS lesionsAnimal model experimental autoimmune encephalomyelitisRemission of EAEModel experimental autoimmune encephalomyelitisMyeloid cell plasticityEncephalitogenic T cellsNitric oxide synthaseMyeloid cell phenotypeFuture therapeutic strategiesHuman myeloid cellsAnn NeurolNoninflammatory phenotypePolarized subsetsClinical remissionAutoimmune encephalomyelitisProinflammatory markers
2016
Iron in Multiple Sclerosis and Its Noninvasive Imaging with Quantitative Susceptibility Mapping
Stüber C, Pitt D, Wang Y. Iron in Multiple Sclerosis and Its Noninvasive Imaging with Quantitative Susceptibility Mapping. International Journal Of Molecular Sciences 2016, 17: 100. PMID: 26784172, PMCID: PMC4730342, DOI: 10.3390/ijms17010100.Peer-Reviewed Original ResearchConceptsMultiple sclerosisMagnetic resonance imagingBrain tissueQuantitative susceptibility mappingMS brain tissueAdvanced MRI methodsMS patientsChronic inflammationImmunohistochemical investigationBrain ironMyeloid cellsResonance imagingNon-invasive studyHistological studyRole of ironOxidative stressNoninvasive imagingSclerosisInflammationCellular distributionMRI methodsNeurodegenerationTissueImagingPatients