First Author | Schaefer BC | Year | 2004 |
Journal | Proc Natl Acad Sci U S A | Volume | 101 |
Issue | 4 | Pages | 1004-9 |
PubMed ID | 14724296 | Mgi Jnum | J:88285 |
Mgi Id | MGI:3032475 | Doi | 10.1073/pnas.0307858100 |
Citation | Schaefer BC, et al. (2004) Complex and dynamic redistribution of NF-kappaB signaling intermediates in response to T cell receptor stimulation. Proc Natl Acad Sci U S A 101(4):1004-9 |
abstractText | The central zone of the supramolecular activation cluster (c-SMAC) is a zone of T cell receptor (TCR) enrichment that forms at a T cell/antigen-presenting cell (APC) junction in response to antigen stimulation. We demonstrate that there is a surprisingly complex relocalization process that brings PKC and Bcl10, two intermediates in TCR activation of NF-kappaB, to the cytoplasmic face of the c-SMAC. TCR activation causes enrichment of PKC at the c-SMAC, followed by Bcl10 relocalization to punctate cytoplasmic structures, often at sites distant from the c-SMAC. These Bcl10 structures then undergo further relocalization, becoming enriched at the c-SMAC. TCR activation of NF-kappaB therefore involves the dynamic relocalization of multiple signaling intermediates, with distinct phases proximal to and distant from the c-SMAC. |