2023
PLSCR1 is a cell-autonomous defence factor against SARS-CoV-2 infection
Xu D, Jiang W, Wu L, Gaudet R, Park E, Su M, Cheppali S, Cheemarla N, Kumar P, Uchil P, Grover J, Foxman E, Brown C, Stansfeld P, Bewersdorf J, Mothes W, Karatekin E, Wilen C, MacMicking J. PLSCR1 is a cell-autonomous defence factor against SARS-CoV-2 infection. Nature 2023, 619: 819-827. PMID: 37438530, PMCID: PMC10371867, DOI: 10.1038/s41586-023-06322-y.Peer-Reviewed Original ResearchConceptsC-terminal β-barrel domainSpike-mediated fusionCell-autonomous defenseLarge-scale exome sequencingΒ-barrel domainGenome-wide CRISPRSARS-CoV-2 infectionHost cell cytosolScramblase activityPhospholipid scramblaseLive SARS-CoV-2 infectionHuman lung epitheliumPLSCR1SARS-CoV-2 USASingle-molecule switchingSARS-CoV-2 variantsExome sequencingHuman populationRestriction factorsViral RNANew SARS-CoV-2 variantsSARS-CoV-2Robust activityLung epitheliumDefense factors
2020
UFMylation inhibits the proinflammatory capacity of interferon-γ–activated macrophages
Balce DR, Wang YT, McAllaster MR, Dunlap BF, Orvedahl A, Hykes BL, Droit L, Handley SA, Wilen CB, Doench JG, Orchard RC, Stallings CL, Virgin HW. UFMylation inhibits the proinflammatory capacity of interferon-γ–activated macrophages. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 118: e2011763118. PMID: 33372156, PMCID: PMC7817147, DOI: 10.1073/pnas.2011763118.Peer-Reviewed Original ResearchConceptsGenome-wide CRISPR knockout screenCRISPR knockout screensEndoplasmic reticulum stress responseRegulation of responsesReticulum stress responseKnockout screensTranscriptional responseGenetic roadmapIFN-γ responsesTumor necrosis factorNegative regulatorMolecular linkUfmylation pathwayUnexpected roleStress responseMacrophage cell lineIFN-γ activationIntracellular pathogensProinflammatory capacityConjugation systemInfluenza infectionCellular immunityIFN-γ effectsNecrosis factorImmune responseSelect autophagy genes maintain quiescence of tissue-resident macrophages and increase susceptibility to Listeria monocytogenes
Wang YT, Zaitsev K, Lu Q, Li S, Schaiff WT, Kim KW, Droit L, Wilen CB, Desai C, Balce DR, Orchard RC, Orvedahl A, Park S, Kreamalmeyer D, Handley SA, Pfeifer JD, Baldridge MT, Artyomov MN, Stallings CL, Virgin HW. Select autophagy genes maintain quiescence of tissue-resident macrophages and increase susceptibility to Listeria monocytogenes. Nature Microbiology 2020, 5: 272-281. PMID: 31959973, PMCID: PMC7147835, DOI: 10.1038/s41564-019-0633-0.Peer-Reviewed Original ResearchConceptsTissue-resident macrophagesAutophagy genesDegradative autophagyBeclin-1Maintenance of proteinMyeloid cells resultsAutophagy protein Beclin 1Protein Beclin 1Organelle integrityCellular processesMyeloid cellsBacterial microbiotaCytoplasmic contentsLysosomal digestionGenesCommensal microorganismsCells resultsAutophagyFIP200Homeostatic functionsListeria monocytogenes infectionAdaptive immune responsesKey functionsMice displayMacrophage response
2017
Viral Replication Complexes Are Targeted by LC3-Guided Interferon-Inducible GTPases
Biering SB, Choi J, Halstrom RA, Brown HM, Beatty WL, Lee S, McCune BT, Dominici E, Williams LE, Orchard RC, Wilen CB, Yamamoto M, Coers J, Taylor GA, Hwang S. Viral Replication Complexes Are Targeted by LC3-Guided Interferon-Inducible GTPases. Cell Host & Microbe 2017, 22: 74-85.e7. PMID: 28669671, PMCID: PMC5591033, DOI: 10.1016/j.chom.2017.06.005.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAutophagyCaliciviridae InfectionsCarrier ProteinsCell LineCytosolFemaleFibroblastsGene Knockdown TechniquesGTP PhosphohydrolasesHeLa CellsHumansImmunity, InnateInterferon-gammaInterferonsMacrophagesMaleMiceMice, Inbred C57BLMicrotubule-Associated ProteinsNorovirusRAW 264.7 CellsVacuolesViral Plaque AssayVirus ReplicationConceptsViral replication complexReplication complexImmunity-related GTPasesGuanylate-binding proteinsIFN-inducible GTPasesMNV replication complexPositive-sense RNA genomeLC3 conjugation systemConjugation systemInterferon-inducible GTPasesMembranes of vacuolesAutophagy proteinsRNA genomeGTPasesDiverse pathogensMNV replicationHuman cellsAdvantageous microenvironmentImmune defense mechanismsMembranous structuresDefense mechanismsMurine norovirusHost immune systemMembrane structureProtein