Abstract
Timelapse microscopy enables long term monitoring of biological processes, however a major bottleneck in assesing experimental outcome is the need for an automated analysis framework to extract statistics and evaluate results. In this study, we use Gabor energy texture descriptors to generate a high dimensional feature space which is analysed with principal component analysis to provide unsupervised characterisation of texture differences between pairs of images. We apply this technique to differentiation of human embryonic carcinoma cells in the presence of all-trans retinoic acid (RA) and show that differentiation outcome can be predicted directly from texture information. A microfluidic environment is used to deliver pulses of RA stimulation over five days in culture. Results provide insight into the dynamics of cell response to differentiation signals over time.
V. Biga and O.M. Alves Coelho have contributed equally to this work.
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Acknowledgments
This work was funded by a Human Frontier Science Program grant. OC was funded by Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil.
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Appendix
Appendix
Microfluidic experiments on the M04S mammalian plate were prepared according to the diagram in Fig. 6 and in addition the waste wells 7 were filled with 300 \(\upmu \)l media per well to prevent gravity flow. The protocol for the microfluidic system is summarised in Algorithm 1.
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Biga, V. et al. (2017). Statistical Texture-Based Mapping of Cell Differentiation Under Microfluidic Flow. In: Bracciali, A., Caravagna, G., Gilbert, D., Tagliaferri, R. (eds) Computational Intelligence Methods for Bioinformatics and Biostatistics. CIBB 2016. Lecture Notes in Computer Science(), vol 10477. Springer, Cham. https://doi.org/10.1007/978-3-319-67834-4_8
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DOI: https://doi.org/10.1007/978-3-319-67834-4_8
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