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This study explores the induction of EGFP expression in HeLa cells transiently transfected with a pIL8 reporter following stimulation with 1 nM IL-1. We observe the nuclear/cytoplasmic distribution of RelA (p65), highlighting cell-to-cell variations in signal transduction amplitude and kinetics. These variations create significant noise in the signaling system. We aim to identify fundamental controlling parameters at the single-cell level to enhance the understanding of regulatory mechanisms, paving the way for more accurate mathematical modeling of signaling networks and improved experimental designs.
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Transmembrane Signal Transduction Inflammatory mediators
Induction of EGFP expression by 1 nM IL-1 in HeLa cells transiently transfected with a pIL8 reporter Minutes after IL1 IL1 vehicle
EGFP Expression from pIL8-d2-EGFP in ten individual cells following IL-1 (1 nM) stimulation
RelA Nuclear/CytoplasmicDistribution Response to IL-1
RelA Nuclear/CytoplasmicDistribution Heterogeneity
Kinetic Analysis of IL-1 Induced p65/relA Nuclear Translocation
Comments Cell to cell variations in both amplitude and kinetics of signal transduction events cause a significant noise in the system. Obtaining detailed information of regulatory mechanisms at the single cell level requires identification of fundamental controlling parameters. -------------- To use the single cell data as the basis for mathematical modelling of signalling networks. To use the theoretical predictions for improved design of the biological experiment.