Neutrophils sense flow-generated stress and direct their migration through αVβ3-integrin.
Neutrophils sense flow-generated stress and direct their migration through αVβ3-integrin.
复制标题
中性粒细胞感知血流产生的压力并通过 αVβ3-整合素引导其迁移。
DOI:
--
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
G. Nash
中科院分区:
文献类型:
--
作者:
G. Rainger;C. Buckley;D. Simmons;G. Nash
During inflammation neutrophils are recruited from the blood onto the surface of microvascular endothelial cells. In this milieu the presence of soluble chemotactic gradients is disallowed by blood flow. However, directional cues are still required for neutrophils to migrate to the junctions of endothelial cells where extravasation occurs. Shear forces generated by flowing blood provide a potential alternative guide. In our flow-based adhesion assay neutrophils preferentially migrated in the direction of flow when activated after attachment to platelet monolayers. Neutralizing αVβ3-integrin with monoclonal antibodies or turning the flow off randomized the direction of migration without affecting migration velocity. Purified, immobilized αVβ3-integrin ligands, CD31 and fibronectin, could both support flow-directed neutrophil migration in a concentration-dependent manner. Migration could be randomized by neutralizing αVβ3-integrin interactions with the substrate using antibodies or Arg-Gly-Asp-containing peptide. These results exemplify mechanical signal transduction through integrin-ligand interactions and reveal a guidance system that was hitherto unknown in neutrophils. In more general terms, it demonstrates that cells can use integrin molecules to "sample" their physical microenvironment through adhesion and use this information to modulate their behavior.
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影响因子:
20.3
作者:
Maher,J;Martell,JV;Brantley,BA;Cox,EB;Niedel,JE;Rosse,WF
通讯作者:
Rosse,WF
影响因子:
15.9
作者:
LIAW, L;SKINNER, MP;GIACHELLI, CM
通讯作者:
GIACHELLI, CM
影响因子:
3.6
作者:
vanLeeuwen,RL;Yoshinaga,IG;Akasaka,T;Dekker,SK;Vermeer,BJ;Byers,HR
通讯作者:
Byers,HR
DOI:
10.1172/jci118293
发表时间:
1995-11
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
E. Wilson;K. Sudhir;H. Ives
通讯作者:
E. Wilson;K. Sudhir;H. Ives
影响因子:
4.6
作者:
M. Delannet;F. Martin;B. Bossy;D. Cheresh;L. F. Reichardt;J. Duband
通讯作者:
M. Delannet;F. Martin;B. Bossy;D. Cheresh;L. F. Reichardt;J. Duband