Morphological Definition of Actin Architecture at the T Cell Immunological Synapse

Abstract

T lymphocytes (T cells) are the major mediators of adaptive
immune response. They detect pathogens primarily via the interaction
of their T cell receptor (TCR) with the cognate pathogen-derived peptide
displayed in the context of MHC on the infected cell. A critical step in T
cell activation is the formation of immunological synapse, a specialized
cell–cell conjugate interface between the T cell and infected cell, where
massive TCR-induced actin remodeling and polymerization take place.
Dynamic actin polymerization at the immunological synapse is essential
for T cell activation and subsequently, immune response.