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The role of the gap junction protein connexin43 in B lymphocyte motility and migration

机译:间隙连接蛋白连接蛋白43在B淋巴细胞运动和迁移中的作用

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Thegapjunctionfamilyofproteinsiswidelyexpressedinmammaliancellsandformintercellularchannelsbetweenadjacentcells,aswellashemichannels,fortransportofmoleculesbetweenthecellandthesurroundingenvironment.Inaddition,gapjunctionproteinshaverecentlybeenimplicatedasimportantfortheregulationofcelladhesionandmigrationinavarietyofcelltypes.Thegapjunctionproteinconnexin43(Cx43)regulatesBlymphocyteadhesion,BCR‐andLFA‐1‐mediatedactivationoftheGTPaseRap1,andcytoskeletalrearrangementsresultinginchangestocellshapeandmembranespreading.WedemonstrateherethattheactincytoskeletonisimportantforthedistributionofCx43intheBcellplasmamembraneandforothercellprocessesinvolvingthecytoskeleton.UsingshRNAknockdownofCx43inBlymphomacellsweshowthatCx43isalsonecessaryforchemokine‐mediatedRap1activation,motility,CXCL12‐directedmigration,andmovementacrossanendothelialcellmonolayer.TheseresultsdemonstratethatinadditiontoitsroleinBcellspreading,Cx43isanimportantregulatorofB‐cellmotilityandmigration,processesessentialfornormalB‐celldevelopmentandimmuneresponses...
机译:Thegapjunctionfamilyofproteinsiswidelyexpressedinmammaliancellsandformintercellularchannelsbetweenadjacentcells,aswellashemichannels,fortransportofmoleculesbetweenthecellandthesurroundingenvironment.Inaddition,gapjunctionproteinshaverecentlybeenimplicatedasimportantfortheregulationofcelladhesionandmigrationinavarietyofcelltypes.Thegapjunctionproteinconnexin43(Cx43的)regulatesBlymphocyteadhesion,BCR-andLFA -1- mediatedactivationoftheGTPaseRap1,andcytoskeletalrearrangementsresultinginchangestocellshapeandmembranespreading.WedemonstrateherethattheactincytoskeletonisimportantforthedistributionofCx43intheBcellplasmamembraneandforothercellprocessesinvolvingthecytoskeleton.UsingshRNAknockdownofCx43inBlymphomacellsweshowthatCx43isalsonecessaryforchemokine-mediatedRap1activation,运动性,CXCL12-directedmigration,andmovementacrossanendothelialcellmonolayer.TheseresultsdemonstratethatinadditiontoitsroleinBcellspreading,Cx43isanimportantregulatorofB-cellmotilityandmigration,processesessentialfornormal B细胞发育和免疫反应...

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    《FEBS Letters》 |2014年第8期|共10页
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  • 中图分类 分子生物学;
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