CARMA Proteins: Playing a Hand of Four CARDs

CARMA Proteins: Playing a Hand of Four CARDs
Author :
Publisher : Frontiers Media SA
Total Pages : 179
Release :
ISBN-10 : 9782889630561
ISBN-13 : 2889630560
Rating : 4/5 (560 Downloads)

Book Synopsis CARMA Proteins: Playing a Hand of Four CARDs by : Frédéric Bornancin

Download or read book CARMA Proteins: Playing a Hand of Four CARDs written by Frédéric Bornancin and published by Frontiers Media SA. This book was released on 2019-10-18 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some twenty years ago, the search began for B-cell lymphoma (BCL)-10 binding partners that connect via homophilic interaction with its N-terminal caspase recruitment domain (CARD) to induce nuclear factor-kappa B (NF-κB) activation. This effort led first to the identification of the protein CARD9. Soon afterwards, similar searches identified CARD10 (aka CARMA3), CARD11 (aka CARMA1) and CARD14 (aka CARMA2), as further BCL10 interactors. These discoveries paved the way for landmark progress in our understanding of NF-κB activation pathways downstream of several cell surface receptors on multiple cell types, focused particularly on antigen receptors on lymphocytes. An additional binding partner, called Mucosa-associated lymphoid tissue lymphoma translocation protein 1 (MALT1), was also implicated in the CARD-BCL10 pathway. Since then, the resulting “CBM” complex has been recognized as a key node in signaling cascades leading to NF-κB activation, particularly in immune cells. Mouse models of genetic deficiencies for each CBM component provided the first evidence for their critical role in cell signaling. More recently, studies of human lymphoid malignancies and novel genetic disorders have revealed important new insights. Both gain- and loss-of-function mutations were identified, establishing these CARMA/CARD proteins as key regulators of proliferation and differentiation of immune and non-immune cells, and linking them to human disease. According to the genetic defect involved, dysregulation of CARMA/CARD pathways can lead to a broad spectrum of immune disorders, including severe immune deficiencies, lymphoproliferative disorders, psoriasis and atopy. The aim of this Research Topic is to summarize and update our current understanding of CARMA/CARD protein biology, from initial discoveries to the most recent insights. It focuses on CARD9 and the CARMA proteins CARD10, CARD11 and CARD14, from genetic, signaling and disease perspectives. BCL10 and MALT1 are also reviewed in this context as critical nodes for CBM signal relay and regulation. This Research Topic also aims to delineate the next key questions in the field to guide future research efforts.


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