Fundamental Limits of Efficacy of Intercellular Communication by Diffusion

Fundamental Limits of Efficacy of Intercellular Communication by Diffusion
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细胞间扩散通讯功效的基本限制

DOI:
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发表时间:
2005
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影响因子:
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通讯作者:
C. Abrams
C. Abrams
中科院分区:
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作者:
E. Jabbarzadeh;C. Abrams

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我们使用一个分析模型,通过扩散以非均匀速率产生的信号化合物来研究细胞间信号传递的基本方面。在给定时间平均分泌率的情况下,我们考虑了用不同的脉冲间隔长度对分泌物进行“脉冲”处理的效果。有效通信距离随着脉冲长度的减小而增加,但在稳定分泌的情况下,这种增加在理论上被限制在有效通信距离的大约两倍。允许信号传输的时间间隔也随着脉冲时间的减少而减小。这些结果说明了重要的限制情况,在这些情况下,信号化合物的分泌方式可以对细胞间的信号产生重大影响。
We investigate the fundamental aspects of cell-to-cell signaling by diffusing signaling compounds produced at nonuniform rates using an analytical model. Given a time-averaged secretion rate, we consider the effects of “pulsing” the secretion with different pulse interval lengths. The effective communication distance increases with decreasing pulse length, but this increase is theoretically limited to approximately twice the effective communication distance in the case of steady secretion. The time intervals in which signal transfer is permitted also decrease as pulse time decreases. These results illustrate important limiting cases in which the mode of the secretion of signaling compounds can have significant effects on cell-to-cell signaling.
DOI: 10.1016/s0022-5193(05)80201-2
发表时间: 1991-10-07
影响因子: 2
作者:
STOKES, CL;LAUFFENBURGER, DA
通讯作者: LAUFFENBURGER, DA
DOI: 10.1006/jtbi.2000.1073
发表时间: 2000-04-07
影响因子: 2
作者:
Schilling, CH;Letscher, D;Palsson, BO
通讯作者: Palsson, BO