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Updated: Aug 13, 2026

A TIRF Microscopy Technique for Real-time, Simultaneous Imaging of the TCR and its Associated Signaling Proteins
Published on: March 22, 2012
Deciphering the pathway from the TCR to NF-kappaB
1Unité de Signalisation Moléculaire et Activation Cellulaire, URA 2582 Centre National de la Recherche Scientifique, Institut Pasteur, 25 Rue du Dr. Roux, 75724 Paris Cedex 15, France.
Abstract:
A major regulator of lymphocyte survival and activation is the transcription factor nuclear factor-kappaB (NF-kappaB). Controlled activation of NF-kappaB is essential for the immune and inflammatory response as well as for cell proliferation and protection against apoptosis. The NEMO/IkappaB kinase (IKK) complex is the central integrator of most stimuli leading to NF-kappaB activation, but a detailed knowledge of the upstream events is available only for a limited number of stimuli. In particular, although most players have probably been identified, relatively little is known about the detailed molecular mechanisms involved in the cascade leading to NF-kappaB activation following engagement of the T-cell receptor by a foreign antigen. In this review, we discuss recent insights into this specific signal transduction cascade, and the way it is controlled both spatially and temporally.
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