In this work, the essential lymphocyte adaptor molecules B cell lymphoma 10 (Bcl10) and mucosa-associated lymphoid tissue 1 (Malt1) have been identified as novel key regulators in signal transduction in mast cells as exemplary myeloid cell line. They regulate IgE-dependent anaphylactic late phase reactions in vivo and are responsible for the FcεRI-induced activation of the transcription factor nuclear Factor κB (NF-κB) and the resulting production of the cytokines tumor necrosis factor α and interleukin 6 (IL-6). However, Bcl10 and Malt1 are dispensable for IgE-dependent anaphylactic immediate phase reactions, degranulation and leukotriene synthesis. In murine embryonic fibroblasts as example for non-immune cells, the Bcl10/Malt1 complex regulates NF-κB activation and IL-6 production induced by the phospholipid lysophosphatidic acid via a G protein-coupled receptor- and protein kinase C-mediated signalling pathway.
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In this work, the essential lymphocyte adaptor molecules B cell lymphoma 10 (Bcl10) and mucosa-associated lymphoid tissue 1 (Malt1) have been identified as novel key regulators in signal transduction in mast cells as exemplary myeloid cell line. They regulate IgE-dependent anaphylactic late phase reactions in vivo and are responsible for the FcεRI-induced activation of the transcription factor nuclear Factor κB (NF-κB) and the resulting production of the cytokines tumor necrosis factor α and int...
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