BTG1 mutation yields supercompetitive B cells primed for malignant transformation
Mlynarczyk C, Teater M, Pae J, Chin C, Wang L, Arulraj T, Barisic D, Papin A, Hoehn K, Kots E, Ersching J, Bandyopadhyay A, Barin E, Poh H, Evans C, Chadburn A, Chen Z, Shen H, Isles H, Pelzer B, Tsialta I, Doane A, Geng H, Rehman M, Melnick J, Morgan W, Nguyen D, Elemento O, Kharas M, Jaffrey S, Scott D, Khelashvili G, Meyer-Hermann M, Victora G, Melnick A. BTG1 mutation yields supercompetitive B cells primed for malignant transformation. Science 2023, 379: eabj7412. PMID: 36656933, PMCID: PMC10515739, DOI: 10.1126/science.abj7412.Peer-Reviewed Original ResearchConceptsGerminal center B cellsPositive selection signalsB-cell fitnessCell fitnessUnicellular organismsB cellsMulticellular lifeNatural selectionSelection signalsInduction kineticsGatekeeper mechanismAdaptive immune systemAltruistic cooperationNew mouse modelNormal counterpartsHuman lymphomasAntibody affinity maturationCellsInvasive lymphomaClinical outcomesMouse modelImmune systemMalignant transformationSupercompetitorsAffinity maturationCyclin D3 drives inertial cell cycling in dark zone germinal center B cells
Pae J, Ersching J, Castro T, Schips M, Mesin L, Allon S, Ordovas-Montanes J, Mlynarczyk C, Melnick A, Efeyan A, Shalek A, Meyer-Hermann M, Victora G. Cyclin D3 drives inertial cell cycling in dark zone germinal center B cells. Journal Of Experimental Medicine 2020, 218: e20201699. PMID: 33332554, PMCID: PMC7754672, DOI: 10.1084/jem.20201699.Peer-Reviewed Original ResearchConceptsGC B cellsB cellsGerminal centersExpansion of GC B cellsDose-dependentlyClonal B-cell lymphoproliferationGerminal center B cellsB-cell lymphoproliferationCyclin D3Gain-of-function mutationsCell cycle regulator cyclin D3Cell cycle programAffinity-dependent selectionLight zoneMalignant transformationClonal expansionOld miceVigorous proliferationCell cycleSomatic hypermutationCCND3 genesAffinity maturationDark zoneProliferationCyclin