The precision of concentration sensing is improved when cells communicate. Here we derive the physical limits to concentration sensing for cells that communicate over short distances by directly exchanging small molecules (juxtacrine signaling), or over longer distances by secreting and sensing a diffusive messenger molecule (autocrine signaling). In the latter case, we find that the optimal cell spacing can be large, due to a trade-off between maintaining communication strength and reducing signal cross-correlations. This leads to the surprising result that sparsely packed communicating cells sense concentrations more precisely than densely packed communicating cells. We compare our results to data from a wide variety of communicating cell types.
Fundamental Limits to Collective Concentration Sensing in Cell Populations.
Published 2016 in Physical Review Letters
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- Publication year
2016
- Venue
Physical Review Letters
- Publication date
2016-03-14
- Fields of study
Biology, Medicine, Physics, Chemistry
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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