In vivo imaging of retrovirus infection reveals a role for Siglec-1/CD169 in multiple routes of transmission
Haugh KA, Ladinsky MS, Ullah I, Stone HM, Pi R, Gilardet A, Grunst MW, Kumar P, Bjorkman PJ, Mothes W, Uchil PD. In vivo imaging of retrovirus infection reveals a role for Siglec-1/CD169 in multiple routes of transmission. ELife 2021, 10: e64179. PMID: 34223819, PMCID: PMC8298093, DOI: 10.7554/elife.64179.Peer-Reviewed Original ResearchConceptsSentinel macrophagesSiglec-1/CD169Immune surveillance functionCommon host factorMesenteric sacsPeyer's patchesGastrointestinal tractOral routeReporter virusRetrovirus transmissionRetrovirus infectionFrontline cellsRetroviral pathogenesisHost factorsBioluminescence imagingVirus entryIncoming virusInfectionRetrovirus life cycleCD169Early eventsMacrophagesMultiscale imaging approachVirusSurveillance functionA Protective Role for the Lectin CD169/Siglec-1 against a Pathogenic Murine Retrovirus
Uchil PD, Pi R, Haugh KA, Ladinsky MS, Ventura JD, Barrett BS, Santiago ML, Bjorkman PJ, Kassiotis G, Sewald X, Mothes W. A Protective Role for the Lectin CD169/Siglec-1 against a Pathogenic Murine Retrovirus. Cell Host & Microbe 2018, 25: 87-100.e10. PMID: 30595553, PMCID: PMC6331384, DOI: 10.1016/j.chom.2018.11.011.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCD8-Positive T-LymphocytesCell ProliferationDendritic CellsDisease Models, AnimalErythroblastsFemaleInterferon Type ILectinsLymph NodesMacrophagesMaleMiceMice, Inbred BALB CMice, Inbred C57BLProtective AgentsRetroviridaeRetroviridae InfectionsSialic Acid Binding Ig-like Lectin 1SpleenT-Lymphocytes, CytotoxicViral LoadConceptsCD169/SiglecEffective cytotoxic T lymphocyte (CTL) responseProtective roleCytotoxic T lymphocyte responsesLymph node infectionT lymphocyte responsesHigh viral loadSusceptible mouse strainsMarginal zone metallophilic macrophagesPermissive lymphocytesCytotoxic CD8Lymphocyte responsesViral loadSubcapsular sinusComplex infectionMurine modelViral disseminationMetallophilic macrophagesRed pulpCell responsesSystemic spreadMouse strainsPathogenesisCells 1CD169Retroviruses use CD169-mediated trans-infection of permissive lymphocytes to establish infection
Sewald X, Ladinsky MS, Uchil PD, Beloor J, Pi R, Herrmann C, Motamedi N, Murooka TT, Brehm MA, Greiner DL, Shultz LD, Mempel TR, Bjorkman PJ, Kumar P, Mothes W. Retroviruses use CD169-mediated trans-infection of permissive lymphocytes to establish infection. Science 2015, 350: 563-567. PMID: 26429886, PMCID: PMC4651917, DOI: 10.1126/science.aab2749.Peer-Reviewed Original ResearchConceptsHuman immunodeficiency virusLymph nodesMurine leukemia virusCD169/SiglecSecondary lymphoid tissuesPermissive lymphocytesDendritic cellsImmunodeficiency virusSynaptic contactsLymphoid tissueRobust infectionVirological synapsesI-type lectinsRetroviral spreadViral spreadUninfected cellsInfectionLeukemia virusVirusMacrophagesCellsRetrovirusesCell-cell contactCD169Lymphocytes