Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Cell+Biol 2016 ; 18 (1): 43-53 Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Innate control of actin nucleation determines two distinct migration behaviours in dendritic cells #MMPMID26641718
Vargas P; Maiuri P; Bretou M; Sáez PJ; Pierobon P; Maurin M; Chabaud M; Lankar D; Obino D; Terriac E; Raab M; Thiam HR; Brocker T; Kitchen-Goosen SM; Alberts AS; Sunareni P; Xia S; Li R; Voituriez R; Piel M; Lennon-Duménil AM
Nat Cell Biol 2016[Jan]; 18 (1): 43-53 PMID26641718show ga
Dendritic cell (DC) migration in peripheral tissues serves two main functions: antigen sampling by immature DCs, and chemokine-guided migration towards lymphatic vessels (LVs) on maturation. These migratory events determine the efficiency of the adaptive immune response. Their regulation by the core cell locomotion machinery has not been determined. Here, we show that the migration of immature DCs depends on two main actin pools: a RhoA?mDia1-dependent actin pool located at their rear, which facilitates forward locomotion; and a Cdc42?Arp2/3-dependent actin pool present at their front, which limits migration but promotes antigen capture. Following TLR4?MyD88-induced maturation, Arp2/3-dependent actin enrichment at the cell front is markedly reduced. Consequently, mature DCs switch to a faster and more persistent mDia1-dependent locomotion mode that facilitates chemotactic migration to LVs and lymph nodes. Thus, the differential use of actin-nucleating machineries optimizes the migration of immature and mature DCs according to their specific function.