A quantitative approach to discover nonlinear signaling linking combinatorial environments with cellular responses
Kuchenov, D.; Ziebell, F.; Salopiata, F.; Thomas, A.; Citir, M.; Klingmueller, U.; Huber, W.; Schultz, C.
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Cells constantly integrate diverse inputs from the extracellular environment, yet our understanding of how cells effectively process information from multiple cues at the same time remains limited. We utilized an integrated imaging platform and RNAseq analysis to investigate the combined effects of growth factors on cellular signaling and gene expression. Paired stimuli by receptor ligands revealed diverse signaling signatures-- ranging from antagonism to synergy--driving global signaling programs and gene expression. Notably, correlation networks based on signaling signatures identified vulnerabilities in cancer cells when compared to synergistic drug combinations. Profiling kinase and phosphatase activities uncovered a crucial interplay, where cellular sensitivity and phospho-turnover dynamics are modulated by input history through coordinated basal kinase and phosphatase activities. Our novel methodology sheds light on cellular processing of multiple cues, elucidating intricate mechanisms underlying cellular adaptation to extracellular environmental variations. Based on previous preprint: doi: https://doi.org/10.1101/346957
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