Multi-site assessment of reproducibility in high-content live cell imaging data
Hu, J.; Serra-Picamal, X.; Bakker, G.-J.; Troys, M. V.; Winograd-katz, S.; Ege, N.; Gong, X.; Didan, Y.; Grosheva, I.; Polansky, O.; Bakkali, K.; Hamme, E. V.; Erp, M. v.; Vullings, M.; Weiss, F.; Clucas, J.; Dowbaj, A. M.; Sahai, E.; Ampe, C.; Geiger, B.; Friedl, P.; Bottai, M.; Stromblad, S.
Show abstract
High-content image-based cell phenotyping provides fundamental insights in a broad variety of life science areas. Striving for accurate conclusions and meaningful impact demands high reproducibility standards, even more importantly with the advent of data sharing initiatives. However, the sources and degree of biological and technical variability, and thus the reproducibility and usefulness of meta-analysis of results from live-cell microscopy have not been systematically investigated. Here, using high content data describing features of cell migration and morphology, we determine the sources of variability across different scales, including between laboratories, persons, experiments, technical repeats, cells and time points. Significant technical variability occurred between laboratories, providing low value to direct meta-analysis on the data from different laboratories. However, batch effect removal markedly improved the possibility to combine image-based datasets of perturbation experiments. Thus, reproducible quantitative high-content cell image data and meta-analysis depend on standardized procedures and batch correction applied to studies of perturbation effects.
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