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2022-05-05Zeitschriftenartikel DOI: 10.3390/cells11091547
Data-Driven Mathematical Model of Apoptosis Regulation in Memory Plasma Cells
Burt, Philipp
Cornelis, Rebecca
Geißler, Gustav
Hahne, Stefanie
Radbruch, Andreas cc
Chang, Hyun-Dong cc
Thurley, Kevin
Lebenswissenschaftliche Fakultät
Memory plasma cells constitutively produce copious amounts of antibodies, imposing a critical risk factor for autoimmune disease. We previously found that plasma cell survival requires secreted factors such as APRIL and direct contact to stromal cells, which act in concert to activate NF-κB- and PI3K-dependent signaling pathways to prevent cell death. However, the regulatory properties of the underlying biochemical network are confounded by the complexity of potential interaction and cross-regulation pathways. Here, based on flow-cytometric quantification of key signaling proteins in the presence or absence of the survival signals APRIL and contact to the stromal cell line ST2, we generated a quantitative model of plasma cell survival. Our model emphasizes the non-redundant nature of the two plasma cell survival signals APRIL and stromal cell contact, and highlights a requirement for differential regulation of individual caspases. The modeling approach allowed us to unify distinct data sets and derive a consistent picture of the intertwined signaling and apoptosis pathways regulating plasma cell survival.
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DOI
10.3390/cells11091547
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https://doi.org/10.3390/cells11091547
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<a href="https://doi.org/10.3390/cells11091547">https://doi.org/10.3390/cells11091547</a>