Leveraging Topological Events in Tracking Graphs for Understanding Particle Diffusion
Leveraging Topological Events in Tracking Graphs for Understanding Particle Diffusion
复制标题
利用跟踪图中的拓扑事件来理解粒子扩散
DOI:
10.1111/cgf.14304
复制
发表时间:
2021
影响因子:
2.5
通讯作者:
Bremer, P.‐T.
中科院分区:
文献类型:
--
作者:
McDonald, T.;Shrestha, R.;Yi, X.;Bhatia, H.;Chen, D.;Goswami, D.;Pascucci, V.;Turbyville, T.;Bremer, P.‐T.
Single particle tracking (SPT) of fluorescent molecules provides significant insights into the diffusion and relative motion of tagged proteins and other structures of interest in biology. However, despite the latest advances in high‐resolution microscopy, individual particles are typically not distinguished from clusters of particles. This lack of resolution obscures potential evidence for how merging and splitting of particles affect their diffusion and any implications on the biological environment. The particle tracks are typically decomposed into individual segments at observed merge and split events, and analysis is performed without knowing the true count of particles in the resulting segments. Here, we address the challenges in analyzing particle tracks in the context of cancer biology. In particular, we study the tracks of KRAS protein, which is implicated in nearly 20% of all human cancers, and whose clustering and aggregation have been linked to the signaling pathway leading to uncontrolled cell growth. We present a new analysis approach for particle tracks by representing them as tracking graphs and using topological events – merging and splitting, to disambiguate the tracks. Using this analysis, we infer a lower bound on the count of particles as they cluster and create conditional distributions of diffusion speeds before and after merge and split events. Using thousands of time‐steps of simulated and in‐vitro SPT data, we demonstrate the efficacy of our method, as it offers the biologists a new, detailed look into the relationship between KRAS clustering and diffusion speeds.
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DOI:
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发表时间:
--
期刊:
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影响因子:
--
作者:
通讯作者:
--
影响因子:
1.7
作者:
G. Weber;P. Bremer;Valerio Pascucci
通讯作者:
Valerio Pascucci
DOI:
10.1109/ldav48142.2019.8944365
发表时间:
2019
期刊:
2019 IEEE 9th Symposium on Large Data Analysis and Visualization (LDAV)
影响因子:
--
作者:
Maxime Soler;M. Petitfrère;G. Darche;Mélanie Plainchault;B. Conche;Julien Tierny
通讯作者:
Julien Tierny
DOI:
10.1109/visual.1998.745288
发表时间:
1998
期刊:
Proceedings Visualization '98 (Cat. No.98CB36276)
影响因子:
--
作者:
D. Silver;Xin Wang
通讯作者:
Xin Wang
影响因子:
2.5
作者:
Valerio Pascucci;D. Laney;R. J. Frank;F. Gygi;G. Scorzelli;L. Linsen;B. Hamann
通讯作者:
B. Hamann