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- W3193997907 abstract "Using a self-generated hypoxic assay, we show that the amoeba Dictyostelium discoideum displays a remarkable collective aerotactic behavior. When a cell colony is covered, cells quickly consume the available oxygen (O 2 ) and form a dense ring moving outwards at constant speed and density. To decipher this collective process, we combined two technological developments: porphyrin-based O 2 -sensing films and microfluidic O 2 gradient generators. We showed that Dictyostelium cells exhibit aerotactic and aerokinetic response in a low range of O 2 concentration indicative of a very efficient detection mechanism. Cell behaviors under self-generated or imposed O 2 gradients were modeled using an in silico cellular Potts model built on experimental observations. This computational model was complemented with a parsimonious ‘Go or Grow’ partial differential equation (PDE) model. In both models, we found that the collective migration of a dense ring can be explained by the interplay between cell division and the modulation of aerotaxis." @default.
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- W3193997907 date "2021-08-20" @default.
- W3193997907 modified "2023-10-18" @default.
- W3193997907 title "Hypoxia triggers collective aerotactic migration in Dictyostelium discoideum" @default.
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- W3193997907 doi "https://doi.org/10.7554/elife.64731" @default.
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