Molecular analysis of B lymphocyte development and activation
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Molecular analysis of B lymphocyte development and activation
（Current topics in microbiology and immunology, v. 290）
Springer, 2005
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Includes bibliographical references and index
Description and Table of Contents
Description
TheBlymphocytelineagerepresentsaleadingsystemforexploring- lecularmechanismsthatunderliecellfatespecification,differentiationand cellular activation. In the past five years major advances have been achievedintheanalysisofearlyBcelldevelopment,AIDdependentclass switchrecombinationaswellassomatichypermutationandBlimp-1re- latedplasmacelldifferentiation. Manyofthesefindingsandtheirimpli- tionsarecoveredinthisvolume. Twoemergentareasofresearchthatare includedinthecontributionsfocusonthepre-BCRandIkaros-familyp- teins. Thepre-BCRisanunusualmoleculardevicethatisusedtoexecute acriticaldevelopmentalcheckpointintheBlineage. Itsmechanismof- tion in relationto the pre-TCR and the mature antigen receptors (BCR, TCR)isofconsiderableinterest. Ikaros-familyproteinsappeartofunction viarecruitingtargetgenestodomainsofcentromericheterochromatinin the nucleus. Initially discovered in lymphocytes, they represent a novel system of gene regulationvia nuclearcompartmentalization. Finally, the volumeincludesachapteronWntsignalinginlymphopoiesis.
Analysisof thisevolutionallyconservedpathwaywhichregulatescellularproliferation anddifferentiationindiversedevelopmentalcontextsbenefitedenormo- lyfromthediscoveryoftheLEF/TCFfamilyoffactorsinlymphocyticl- eages. ThisvolumeisdedicatedtothememoryofEugeniaSpanopoulou,ac- leagueandahighlyvaluedmemberofourscientificcommunity. Itc- tainsachapteronthebiochemistryofV(D)JrecombinationthatEugenia co-authoredwithDavidSchatz. Obituary Eugenia Spanopoulou was an extraordinary person and scientist. Her enormousintelligenceandenergysparkedimportantscientificdiscoveries, andvaultedhertoapointofbreathtakingpotential-apotentialabruptly erasedattheageof37withthecrashofSwissairflight111onSeptember 3,1998. Lostwithherwereherhusband,AndrewHodtsev,andyoungson, Platon. Eugeniawaspassionatelyinterestedinunderstandingthemolecular- sisofdevelopmentandchoseashermodelsystemthedevelopmentofB andTlymphocytes. Shebeganbystudyingthetranscriptionalregulation oftheTcell-specificgene,Thy-1,asagraduatestudentinFrankGrosveld s labatMillHill,London.
Thereafter,sheturnedherattentiontothetopicof V(D)Jrecombination,firstasapostdoctoralfellowwithDavidBaltimore attheWhiteheadInstituteinCambridge,Massachusettsandsubsequently inherownlaboratoryatMountSinaiSchoolofMedicineinNewYorkCity. Eugeniamadefundamentaldiscoveriesconcerningthebiochemicalme- anismofthisreaction,andhowdefectsinitscentralenzymaticcom- nents,RAG1andRAG2,canleadtoahumanseverecombinedimmuno- ficiencydisorder,knownasOmennsyndrome. Atthetimeof herdeath, shehadbeenaHowardHughesMedicalInstituteinvestigatorforlessthan ayear,buthadalreadyassembledalaboratoryof15peopleworkingonan extensivearrayoftopicsinearlylymphocytedevelopmentandV(D)J- combination. Eugenialivedeachmomentofherlifewithanintensityfittingforthe cityinwhichshelived. LikeManhattan,shesleptlittle. Sheexpectedagreat dealofherself,andonlyalittlelessfromthosewithwhomsheworked. - geniaalsohadhighexpectationsforthescientificprocessandwasouts- keninherpraiseorcondemnationofthosewhometorfellshortofthose expectations. Shewasquicktoformanopinionanddevotedherselffe- ciouslytofriendshipsandhypotheses. PerhapsthegreatesttestimonytoEugeniaistheaffectionandreverence feltforherby themembersof herlab.
Whilethisstemmedinnosmall partfrompredictablesources-herkeenmindandbroadknowledge-it founditsdeepestsourceinEugenia sabilitytotransmit,byexampleand word,her love of a life of learning and exploration. SandroSantigata,a graduatestudentinEugenia slab,capturedthiseloquentlyatthememorial serviceforEugeniaandAndrew,whenhesaid: VIII Obituary "Ifyouhaveeverbeenspellboundbyagreatstatue,enrapturedbyits strengthandvitality,enthralledbyitspurity,purposeandgraceandupli- edbythesenseofhopethatitsparkswithinyoursoul,thenyouhave- readyunderstoodwhyIadoredEugenia. Shesimplyembodiedtheideal- ticprinciplesthatformthecoreofadedicatedgraduatestudent sheart. Andtoseethesevaluesmaterializedintheformofone smentorcanbe nothingshortofinspirational. " ListofContents GeneRegulatoryNetworksOrchestratingBCellFateSpecification, Commitment,andDifferentiation K. L. Medina*H. Singh...1 Helix-Loop-HelixProteinsinLymphocyteLineageDetermination B. L. Kee...15 Ikaros-FamilyProteins:InSearchofMolecularFunctions DuringLymphocyteDevelopment B. S. Cobb*S. T. Smale...29 BiochemistryofV(D)JRecombination y D. G.
Schatz*TheBlymphocytelineagerepresentsaleadingsystemforexploring- lecularmechanismsthatunderliecellfatespecification,differentiationand cellular activation. In the past five years major advances have been achievedintheanalysisofearlyBcelldevelopment,AIDdependentclass switchrecombinationaswellassomatichypermutationandBlimp-1re- latedplasmacelldifferentiation. Manyofthesefindingsandtheirimpli- tionsarecoveredinthisvolume. Twoemergentareasofresearchthatare includedinthecontributionsfocusonthepre-BCRandIkaros-familyp- teins. Thepre-BCRisanunusualmoleculardevicethatisusedtoexecute acriticaldevelopmentalcheckpointintheBlineage. Itsmechanismof- tion in relationto the pre-TCR and the mature antigen receptors (BCR, TCR)isofconsiderableinterest. Ikaros-familyproteinsappeartofunction viarecruitingtargetgenestodomainsofcentromericheterochromatinin the nucleus. Initially discovered in lymphocytes, they represent a novel system of gene regulationvia nuclearcompartmentalization. Finally, the volumeincludesachapteronWntsignalinginlymphopoiesis.
Analysisof thisevolutionallyconservedpathwaywhichregulatescellularproliferation anddifferentiationindiversedevelopmentalcontextsbenefitedenormo- lyfromthediscoveryoftheLEF/TCFfamilyoffactorsinlymphocyticl- eages. ThisvolumeisdedicatedtothememoryofEugeniaSpanopoulou,ac- leagueandahighlyvaluedmemberofourscientificcommunity. Itc- tainsachapteronthebiochemistryofV(D)JrecombinationthatEugenia co-authoredwithDavidSchatz. Obituary Eugenia Spanopoulou was an extraordinary person and scientist. Her enormousintelligenceandenergysparkedimportantscientificdiscoveries, andvaultedhertoapointofbreathtakingpotential-apotentialabruptly erasedattheageof37withthecrashofSwissairflight111onSeptember 3,1998. Lostwithherwereherhusband,AndrewHodtsev,andyoungson, Platon. Eugeniawaspassionatelyinterestedinunderstandingthemolecular- sisofdevelopmentandchoseashermodelsystemthedevelopmentofB andTlymphocytes. Shebeganbystudyingthetranscriptionalregulation oftheTcell-specificgene,Thy-1,asagraduatestudentinFrankGrosveld s labatMillHill,London.
Thereafter,sheturnedherattentiontothetopicof V(D)Jrecombination,firstasapostdoctoralfellowwithDavidBaltimore attheWhiteheadInstituteinCambridge,Massachusettsandsubsequently inherownlaboratoryatMountSinaiSchoolofMedicineinNewYorkCity. Eugeniamadefundamentaldiscoveriesconcerningthebiochemicalme- anismofthisreaction,andhowdefectsinitscentralenzymaticcom- nents,RAG1andRAG2,canleadtoahumanseverecombinedimmuno- ficiencydisorder,knownasOmennsyndrome. Atthetimeof herdeath, shehadbeenaHowardHughesMedicalInstituteinvestigatorforlessthan ayear,buthadalreadyassembledalaboratoryof15peopleworkingonan extensivearrayoftopicsinearlylymphocytedevelopmentandV(D)J- combination. Eugenialivedeachmomentofherlifewithanintensityfittingforthe cityinwhichshelived. LikeManhattan,shesleptlittle. Sheexpectedagreat dealofherself,andonlyalittlelessfromthosewithwhomsheworked. - geniaalsohadhighexpectationsforthescientificprocessandwasouts- keninherpraiseorcondemnationofthosewhometorfellshortofthose expectations. Shewasquicktoformanopinionanddevotedherselffe- ciouslytofriendshipsandhypotheses. PerhapsthegreatesttestimonytoEugeniaistheaffectionandreverence feltforherby themembersof herlab.
Whilethisstemmedinnosmall partfrompredictablesources-herkeenmindandbroadknowledge-it founditsdeepestsourceinEugenia sabilitytotransmit,byexampleand word,her love of a life of learning and exploration. SandroSantigata,a graduatestudentinEugenia slab,capturedthiseloquentlyatthememorial serviceforEugeniaandAndrew,whenhesaid: VIII Obituary "Ifyouhaveeverbeenspellboundbyagreatstatue,enrapturedbyits strengthandvitality,enthralledbyitspurity,purposeandgraceandupli- edbythesenseofhopethatitsparkswithinyoursoul,thenyouhave- readyunderstoodwhyIadoredEugenia. Shesimplyembodiedtheideal- ticprinciplesthatformthecoreofadedicatedgraduatestudent sheart. Andtoseethesevaluesmaterializedintheformofone smentorcanbe nothingshortofinspirational. " ListofContents GeneRegulatoryNetworksOrchestratingBCellFateSpecification, Commitment,andDifferentiation K. L. Medina*H. Singh...1 Helix-Loop-HelixProteinsinLymphocyteLineageDetermination B. L. Kee...15 Ikaros-FamilyProteins:InSearchofMolecularFunctions DuringLymphocyteDevelopment B. S. Cobb*S. T. Smale...29 BiochemistryofV(D)JRecombination y D. G.
Schatz*TheBlymphocytelineagerepresentsaleadingsystemforexploring- lecularmechanismsthatunderliecellfatespecification,differentiationand cellular activation. In the past five years major advances have been achievedintheanalysisofearlyBcelldevelopment,AIDdependentclass switchrecombinationaswellassomatichypermutationandBlimp-1re- latedplasmacelldifferentiation. Manyofthesefindingsandtheirimpli- tionsarecoveredinthisvolume. Twoemergentareasofresearchthatare includedinthecontributionsfocusonthepre-BCRandIkaros-familyp- teins. Thepre-BCRisanunusualmoleculardevicethatisusedtoexecute acriticaldevelopmentalcheckpointintheBlineage. Itsmechanismof- tion in relationto the pre-TCR and the mature antigen receptors (BCR, TCR)isofconsiderableinterest. Ikaros-familyproteinsappeartofunction viarecruitingtargetgenestodomainsofcentromericheterochromatinin the nucleus. Initially discovered in lymphocytes, they represent a novel system of gene regulationvia nuclearcompartmentalization. Finally, the volumeincludesachapteronWntsignalinginlymphopoiesis.
Analysisof thisevolutionallyconservedpathwaywhichregulatescellularproliferation anddifferentiationindiversedevelopmentalcontextsbenefitedenormo- lyfromthediscoveryoftheLEF/TCFfamilyoffactorsinlymphocyticl- eages. ThisvolumeisdedicatedtothememoryofEugeniaSpanopoulou,ac- leagueandahighlyvaluedmemberofourscientificcommunity. Itc- tainsachapteronthebiochemistryofV(D)JrecombinationthatEugenia co-authoredwithDavidSchatz. Obituary Eugenia Spanopoulou was an extraordinary person and scientist. Her enormousintelligenceandenergysparkedimportantscientificdiscoveries, andvaultedhertoapointofbreathtakingpotential-apotentialabruptly erasedattheageof37withthecrashofSwissairflight111onSeptember 3,1998. Lostwithherwereherhusband,AndrewHodtsev,andyoungson, Platon. Eugeniawaspassionatelyinterestedinunderstandingthemolecular- sisofdevelopmentandchoseashermodelsystemthedevelopmentofB andTlymphocytes. Shebeganbystudyingthetranscriptionalregulation oftheTcell-specificgene,Thy-1,asagraduatestudentinFrankGrosveld s labatMillHill,London.
Thereafter,sheturnedherattentiontothetopicof V(D)Jrecombination,firstasapostdoctoralfellowwithDavidBaltimore attheWhiteheadInstituteinCambridge,Massachusettsandsubsequently inherownlaboratoryatMountSinaiSchoolofMedicineinNewYorkCity. Eugeniamadefundamentaldiscoveriesconcerningthebiochemicalme- anismofthisreaction,andhowdefectsinitscentralenzymaticcom- nents,RAG1andRAG2,canleadtoahumanseverecombinedimmuno- ficiencydisorder,knownasOmennsyndrome. Atthetimeof herdeath, shehadbeenaHowardHughesMedicalInstituteinvestigatorforlessthan ayear,buthadalreadyassembledalaboratoryof15peopleworkingonan extensivearrayoftopicsinearlylymphocytedevelopmentandV(D)J- combination. Eugenialivedeachmomentofherlifewithanintensityfittingforthe cityinwhichshelived. LikeManhattan,shesleptlittle. Sheexpectedagreat dealofherself,andonlyalittlelessfromthosewithwhomsheworked. - geniaalsohadhighexpectationsforthescientificprocessandwasouts- keninherpraiseorcondemnationofthosewhometorfellshortofthose expectations. Shewasquicktoformanopinionanddevotedherselffe- ciouslytofriendshipsandhypotheses. PerhapsthegreatesttestimonytoEugeniaistheaffectionandreverence feltforherby themembersof herlab.
Whilethisstemmedinnosmall partfrompredictablesources-herkeenmindandbroadknowledge-it founditsdeepestsourceinEugenia sabilitytotransmit,byexampleand word,her love of a life of learning and exploration. SandroSantigata,a graduatestudentinEugenia slab,capturedthiseloquentlyatthememorial serviceforEugeniaandAndrew,whenhesaid: VIII Obituary "Ifyouhaveeverbeenspellboundbyagreatstatue,enrapturedbyits strengthandvitality,enthralledbyitspurity,purposeandgraceandupli- edbythesenseofhopethatitsparkswithinyoursoul,thenyouhave- readyunderstoodwhyIadoredEugenia. Shesimplyembodiedtheideal- ticprinciplesthatformthecoreofadedicatedgraduatestudent sheart. Andtoseethesevaluesmaterializedintheformofone smentorcanbe nothingshortofinspirational. " ListofContents GeneRegulatoryNetworksOrchestratingBCellFateSpecification, Commitment,andDifferentiation K. L. Medina*H. Singh...1 Helix-Loop-HelixProteinsinLymphocyteLineageDetermination B. L. Kee...15 Ikaros-FamilyProteins:InSearchofMolecularFunctions DuringLymphocyteDevelopment B. S. Cobb*S. T. Smale...29 BiochemistryofV(D)JRecombination y D. G. Schatz*E. Spanopoulou...4
9 Thepre-BcellReceptorinBCellDevelopment: RecentAdvances,PersistentQuestionsandConservedMechanisms M. R. Clark*A. B. Cooper*L. D. Wang*I. Aifantis...87 TranscriptionalControlofBCellActivation L. M. Corcoran ...105 ExpressionofMHCIIGenes G. Drozina*J. Kohoutek*N. Jabrane-Ferrat*B. M. Peterlin...147 ClassSwitchRecombination:AnEmergingMechanism A. L. Kenter...171 Blimp-1;ImmunoglobulinSecretion andtheSwitchtoPlasmaCells R. Sciammas*M. M. Davis...201 WntSignalinginLymphopoiesis A. Timm*R. Grosschedl...225 SubjectIndex ...253 ListofContributors (Theiraddressescanbefoundatthebeginningoftheirrespectivechapters. ) Aifantis,I. 87 Kohoutek,J. 147 Clark,M. R. 87 Medina,K. L. 1 Cobb,B. S. 29 Peterlin,B. M. 147 Cooper,A. B. 87 Schatz,D. G.
Table of Contents
Gene Regulatory Networks Orchestrating B Cell Fate Specification, Commitment, and Differentiation.- Helix-Loop-Helix Proteins in Lymphocyte Lineage Determination.- Ikaros-Family Proteins: In Search of Molecular Functions During Lymphocyte Development.- Biochemistry of V(D)J Recombination.- The Pre-B Cell Receptor in B Cell Development: Recent Advances, Persistent Questions and Conserved Mechanisms.- Transcriptional Control of B Cell Activation.-Expression of MHC II Genes.- Class Switch Recombination: An Emerging Mechanism.- Blimp-1, Immunoglobulin Secretion, and the Switch to Plasma Cells.- Wnt Signaling in Lymphopoiesis.- Subject Index
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