The Arp2/3 complex binding protein HS1 is required for efficient dendritic cell random migration and force generation.
The Arp2/3 complex binding protein HS1 is required for efficient dendritic cell random migration and force generation.
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DOI:
10.1039/c7ib00070g
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发表时间:
2017-08-14
期刊:
影响因子:
--
通讯作者:
Hammer DA
中科院分区:
文献类型:
--
作者:
Bendell AC;Williamson EK;Chen CS;Burkhardt JK;Hammer DA
Dendritic cell migration to the T-cell-rich areas of the lymph node is essential for their ability to initiate the adaptive immune response. While it has been shown that the actin cytoskeleton is required for normal DC migration, the role of many of the individual cytoskeletal molecules is poorly understood. In this study, we investigated the contribution of the Arp2/3 complex binding protein, haematopoietic lineage cell-specific protein 1 (HS1), to DC migration and force generation. We quantified the random migration of HS1−/− DCs on 2D micro-contact printed surfaces and found that in the absence of HS1, DCs have greatly reduced motility and speed. This same reduction in motility was recapitulated when adding Arp2/3 complex inhibitor to WT DCs or using DCs deficient in WASP, an activator of Arp2/3 complex-dependent actin polymerization. We further investigated the importance of HS1 by measuring the traction forces of HS1−/− DCs on micropost array detectors (mPADs). In HS1 deficient DCs, there was a significant reduction in force generation (3.96 ± 0.40 nN/cell) compared to WT DCs (13.76 ± 0.84 nN/cell). Interestingly, the forces generated in DCs lacking WASP were only slightly reduced compared to WT DCs. Taken together, these findings show that HS1 and Arp2/3 complex-mediated actin polymerization are essential for the most efficient DC random migration and force generation.
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影响因子:
9.2
作者:
Bailly, M;Ichetovkin, I;Condeelis, J
通讯作者:
Condeelis, J
DOI:
10.4049/jimmunol.1003102
发表时间:
2011-04-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Dehring DA;Clarke F;Ricart BG;Huang Y;Gomez TS;Williamson EK;Hammer DA;Billadeau DD;Argon Y;Burkhardt JK
通讯作者:
Burkhardt JK
影响因子:
9.8
作者:
Egile C;Rouiller I;Xu XP;Volkmann N;Li R;Hanein D
通讯作者:
Hanein D
影响因子:
4.8
作者:
Hao, JJ;Zhu, JW;Zhan, X
通讯作者:
Zhan, X
影响因子:
20.3
作者:
Bouma, Gerben;Burns, Siobhan;Thrasher, Adrian J.
通讯作者:
Thrasher, Adrian J.