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Roles of tumor necrosis factor receptor associated factor 3 (TRAF3) and TRAF5 in immune cell functions
Journal article   Open access   Peer reviewed

Roles of tumor necrosis factor receptor associated factor 3 (TRAF3) and TRAF5 in immune cell functions

Joanne M Hildebrand, Zuoan Yi, Claire M Buchta, Jayakumar Poovassery, Laura L Stunz and Gail A Bishop
Immunological reviews, Vol.244(1), pp.55-74
11/2011
DOI: 10.1111/j.1600-065X.2011.01055.x
PMCID: PMC3202299
PMID: 22017431

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Abstract

A large and diverse group of receptors utilizes the family of cytoplasmic signaling proteins known as tumor necrosis factor receptor (TNFR)-associated factors (TRAFs). In recent years, there has been a resurgence of interest and exploration of the roles played by TRAF3 and TRAF5 in cellular regulation, particularly in cells of the immune system, the cell types of focus in this review. This work has revealed that TRAF3 and TRAF5 can play diverse roles for different receptors even in the same cell type, as well as distinct roles in different cell types. Evidence indicates that TRAF3 and TRAF5 play important roles beyond the TNFR-superfamily (SF) and viral mimics of its members, mediating certain innate immune receptor and cytokine receptor signals, and most recently, signals delivered by the T-cell receptor (TCR) signaling complex. Additionally, much research has demonstrated the importance of TRAF3-mediated cellular regulation via its cytoplasmic interactions with additional signaling proteins. In particular, we discuss below evidence for the participation by TRAF3 in a number of the regulatory post-translational modifications involving ubiquitin that are important in various signaling pathways.
Tumor Necrosis Factor-alpha - metabolism Humans Protein Processing, Post-Translational - genetics Tumor Necrosis Factor-alpha - genetics NF-kappa B - immunology Ubiquitin - metabolism Cell Survival - genetics TNF Receptor-Associated Factor 5 - immunology NF-kappa B - metabolism Signal Transduction - immunology T-Lymphocytes - metabolism Myeloid Cells - immunology TNF Receptor-Associated Factor 3 - genetics Gene Expression - immunology Tumor Necrosis Factor-alpha - immunology Protein Processing, Post-Translational - immunology B-Lymphocytes - metabolism Receptors, Tumor Necrosis Factor - genetics Receptors, Tumor Necrosis Factor - metabolism TNF Receptor-Associated Factor 3 - metabolism Signal Transduction - genetics Ubiquitin - genetics TNF Receptor-Associated Factor 5 - metabolism Cell Survival - immunology Immunity, Innate Mice, Knockout TNF Receptor-Associated Factor 5 - genetics Animals B-Lymphocytes - immunology NF-kappa B - genetics TNF Receptor-Associated Factor 3 - immunology Myeloid Cells - metabolism Protein Binding T-Lymphocytes - immunology Mice Receptors, Tumor Necrosis Factor - immunology Ubiquitin - immunology

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