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McAllister-Lucas, L.M.* ; Jin, X.H.* ; Gu, S.F.* ; Siu, K.* ; McDonnell, S.* ; Ruland, J. ; Delekta, P.C.* ; van Beek, M.* ; Lucas, P.C.*

The CARMA3-Bcl10-MALT1 signalosome promotes angiotensin II-dependent vascular inflammation and atherogenesis.

J. Biol. Chem. 285, 25880-25884 (2010)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
The CARMA1, Bcl10, and MALT1 proteins together constitute a signaling complex (CBM signalosome) that mediates antigen-dependent activation of NF-kappaB in lymphocytes, thereby representing a cornerstone of the adaptive immune response. Although CARMA1 is restricted to cells of the immune system, the analogous CARMA3 protein has a much wider expression pattern. Emerging evidence suggests that CARMA3 can substitute for CARMA1 in non-immune cells to assemble a CARMA3-Bcl10-MALT1 signalosome and mediate G protein-coupled receptor activation of NF-kappaB. Here we show that one G protein-coupled receptor, the type 1 receptor for angiotensin II, utilizes this mechanism for activation of NF-kappaB in endothelial and vascular smooth muscle cells, thereby inducing pro-inflammatory signals within the vasculature, a key factor in atherogenesis. Further, we demonstrate that Bcl10-deficient mice are protected from developing angiotensin-dependent atherosclerosis and aortic aneurysms. By uncovering a novel vascular role for the CBM signalosome, these findings illustrate that CBM-dependent signaling has functions outside the realm of adaptive immunity and impacts pathobiology more broadly than previously known.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords NF-Kappa-B; T-cell-activation; MALT1; Atherosclerosis; Lymphocytes; Carma1; Pathogenesis; System; BCL10
ISSN (print) / ISBN 0021-9258
e-ISSN 1083-351X
Quellenangaben Volume: 285, Issue: 34, Pages: 25880-25884 Article Number: , Supplement: ,
Publisher American Society for Biochemistry and Molecular Biology
Non-patent literature Publications
Reviewing status Peer reviewed