Abstract:
:Cells of the immune system are confronted with opposing pro- and anti-inflammatory signals. Dendritic cells (DC) integrate these cues to make informed decisions whether to initiate an immune response. Confronted with exogenous microbial stimuli, DC endogenously produce both anti- (IL-10) and pro-inflammatory (TNFα) cues whose joint integration controls the cell's final decision. Backed by experimental measurements we present a theoretical model to quantitatively describe the integration mode of these opposing signals. We propose a two step integration model that modulates the effect of the two types of signals: an initial bottleneck integrates both signals (IL-10 and TNFα), the output of which is later modulated by the anti-inflammatory signal. We show that the anti-inflammatory IL-10 signaling is long ranged, as opposed to the short-ranged pro-inflammatory TNFα signaling. The model suggests that the population averaging and modulation of the pro-inflammatory response by the anti-inflammatory signal is a safety guard against excessive immune responses.
journal_name
Phys Bioljournal_title
Physical biologyauthors
Marcou Q,Carmi-Levy I,Trichot C,Soumelis V,Mora T,Walczak AMdoi
10.1088/1478-3975/aaaa0asubject
Has Abstractpub_date
2018-05-16 00:00:00pages
056001issue
5eissn
1478-3967issn
1478-3975journal_volume
15pub_type
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