Multiscale model of platelet translocation and collision.
Multiscale model of platelet translocation and collision.
复制标题
血小板易位和碰撞的多尺度模型。
DOI:
10.1016/j.jcp.2012.08.014
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发表时间:
2013
影响因子:
4.1
通讯作者:
King,MichaelR
中科院分区:
文献类型:
--
作者:
Wang,Weiwei;Mody,NipaA;King,MichaelR
The tethering of platelets on the injured vessel surface mediated by glycoprotein Ibα (GPIbα) – Von Willebrand factor (vWF) bonds, as well as the interaction between flowing platelets and adherent platelets, are two key events that take place immediately following blood vessel injury. This early-stage platelet deposition and accumulation triggers the initiation of hemostasis, a self-defensive mechanism to prevent the body from excessive blood loss. To understand and predict this complex process, one must integrate experimentally determined information on the mechanics and biochemical kinetics of participating receptors over very small time frames (1–1000μs) and length scales (10–100nm), to collective phenomena occurring over seconds and tens of microns. In the present study, a unique three dimensional multiscale computational model, Platelet Adhesive Dynamics (PAD), was applied to elucidate the unique physics of (i) a non-spherical, disk-shaped platelet interacting and tethering onto the damaged vessel wall followed by (ii) collisional interactions between a flowing platelet with a downstream adherent platelet. By analyzing numerous simulations under different physiological conditions, we conclude that the platelet’s unique spheroid-shape provides heterogeneous, orientation-dependent translocation (rolling) behavior which enhances cell-wall interactions. We also conclude that platelet–platelet near field interactions are critical for cell–cell communication during the initiation of microthrombi. The PAD model described here helps to identify the physical factors that control the initial stages of platelet capture during this process.
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影响因子:
5
作者:
B. Costall;R. Naylor;C. Pycock
通讯作者:
C. Pycock
DOI:
--
发表时间:
1987
期刊:
Life Science
影响因子:
--
作者:
M. Morelli;S. Fenu;G. Di Chiara
通讯作者:
G. Di Chiara
DOI:
--
发表时间:
1987
期刊:
Life Science
影响因子:
--
作者:
E. Burunat;M. D. Díaz;R. Castro;M. Rodríguez
通讯作者:
M. Rodríguez
影响因子:
64.8
作者:
P. B. Silverman;B. Ho
通讯作者:
B. Ho
影响因子:
5
作者:
P. B. Silverman
通讯作者:
P. B. Silverman