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DeXtrusion: Automatic recognition of epithelial cell extrusion through machine learning in vivo

Authors: Villars, Alexis; Letort, Gaëlle; Levayer, Romain;

DeXtrusion: Automatic recognition of epithelial cell extrusion through machine learning in vivo

Abstract

Epithelial cell death is highly prevalent during development and in adult tissues. It plays an essential role for the regulation of tissue size, shape and turnover. Cell elimination relies on the concerted remodeling of cell junctions, so called cell extrusion, which allow seamless expulsion of dying cells. The dissection of the regulatory mechanism giving rise to a certain number and pattern of cell death was so far limited by our capacity to generate high-throughput quantitative data on cell death/extrusion number and distribution in various perturbed backgrounds. Indeed, quantitative studies of cell death relies so far on manual detection of cell extrusion event or through tedious systematic error-free segmentation and cell tracking. Recently, deep-learning was used to automatically detect cell death and cell division in cell culture mostly using transmission light-microscopy. However, so far, no method was developed for fluorescent images and confocal microscopy, which constitute most datasets in embryonic epithelia. Here, we devised DeXtrusion, a pipeline for automatic detection of cell extrusion/cell death events in larges movies of epithelia marked with cell contour and based on recurrent neural networks. The pipeline, initially trained on large movies of the Drosophila pupal notum marked with fluorescent E-cadherin, is easily trainable, provides fast and accurate extrusion/cell death predictions in a large range of imaging conditions, and can also detect other cellular events such as cell division or cell differentiation. It also performs well on other epithelial tissues with marked cell junctions with reasonable retraining.

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
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1
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