Sub-population analysis based on temporal features of high content images.
BACKGROUND
High content screening techniques are increasingly used to understand the regulation and progression of cell motility. The demand of new platforms, coupled with availability of terabytes of data has challenged the traditional technique of identifying cell populations by manual methods and resulted in development of high-dimensional analytical methods.


RESULTS
In this paper, we present sub-populations analysis of cells at the tissue level by using dynamic features of the cells. We used active contour without edges for segmentation of cells, which preserves the cell morphology, and autoregressive modeling to model cell trajectories. The sub-populations were obtained by clustering static, dynamic and a combination of both features. We were able to identify three unique sub-populations in combined clustering.


CONCLUSIONS
We report a novel method to identify sub-populations using kinetic features and demonstrate that these features improve sub-population analysis at the tissue level. These advances will facilitate the application of high content screening data analysis to new and complex biological problems.
Veronika
Merlin
M
Computation and Systems Biology, Singapore-MIT Alliance, Nanyang Technological University, Singapore. merlin@pmail.ntu.edu.sg
Evans
James
J
Matsudaira
Paul
P
Welsch
Roy
R
Rajapakse
Jagath
J
D000818:Animals; D002465:Cell Movement / Q000502:physiology*; D002477:Cells / Q000166:cytology; D002478:Cells, Cultured; D019295:Computational Biology / Q000379:methods*; D008264:Macrophages / Q000166:cytology* / Q000378:metabolism; D051379:Mice; D010363:Pattern Recognition, Automated