Journal article
The adaptor protein LAT serves as an integration node for signaling pathways that drive T cell activation
Wiley interdisciplinary reviews. Systems biology and medicine, Vol.5(1), pp.101-110
2013
DOI: 10.1002/wsbm.1194
PMCID: PMC3883108
PMID: 23150273
Abstract
T cells are essential for the adaptive immune response to pathogens. However, dysfunctional T cell activity has been implicated in numerous diseases, including the failure of organ transplants, allergic reactions, asthma, autoimmune disorders, and coronary artery disease. T cell responses to pathogens require the induction of the primary activating receptor, the T cell receptor (TCR), along with other costimulatory and adhesion receptors. Signal transduction pathways activated downstream of these receptors drive T cell responses required for the immune response and disease progression. A key question in our understanding of the mechanism of T cell activation is how signalling pathways emanating from multiple receptors integrate together to alter T cell effector functions. One integration node for intracellular signalling is the membrane-associated adaptor protein linker for the activation of T cells or LAT. Upon stimulation of the TCR and other receptors, LAT is phosphorylated at several tyrosines residues on its cytoplasmic tail. This leads to the binding of SH2-domain containing proteins and their associated molecules and the formation of large multiprotein complexes. These dynamic and highly regulated signalling complexes facilitate the production of second messengers, activate downstream pathways, induce actin cytoskeleton polymerization, and stimulate the activity of multiple transcription factors. Thus, signalling pathways from several receptors feed into LAT, which then integrates this information and selectively induces pathways critical for T cell activation and the adaptive immune response.
Details
- Title: Subtitle
- The adaptor protein LAT serves as an integration node for signaling pathways that drive T cell activation
- Creators
- Rebekah R Bartelt - University of Iowa Department of MicrobiologyJon C.D Houtman - University of Iowa Department of Microbiology
- Resource Type
- Journal article
- Publication Details
- Wiley interdisciplinary reviews. Systems biology and medicine, Vol.5(1), pp.101-110
- DOI
- 10.1002/wsbm.1194
- PMID
- 23150273
- PMCID
- PMC3883108
- NLM abbreviation
- Wiley Interdiscip Rev Syst Biol Med
- ISSN
- 1939-5094
- eISSN
- 1939-005X
- Grant note
- R01 CA136729 || CA / National Cancer Institute : NCI
- Language
- English
- Date published
- 2013
- Academic Unit
- Microbiology and Immunology; Internal Medicine
- Record Identifier
- 9984094549202771
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