Chapter title |
Roles of the NF-κB Pathway in B-Lymphocyte Biology.
|
---|---|
Chapter number | 479 |
Book title |
B Cell Receptor Signaling
|
Published in |
Current topics in microbiology and immunology, August 2015
|
DOI | 10.1007/82_2015_479 |
Pubmed ID | |
Book ISBNs |
978-3-31-926131-7, 978-3-31-926133-1
|
Authors |
Sasaki, Yoshiteru, Iwai, Kazuhiro, Yoshiteru Sasaki, Kazuhiro Iwai |
Abstract |
NF-κB was originally identified as a family of transcription factors that bind the enhancer of the immunoglobulin κ light-chain gene. Although its function in the regulation of immunoglobulin κ light-chain gene remains unclear, NF-κB plays critical roles in development, survival, and activation of B lymphocytes. In B cells, many receptors, including B-cell antigen receptor (BCR), activate NF-κB pathway, and the molecular mechanism of receptor-mediated activation of IκB kinase (IKK) complex has been partially revealed. In addition to normal B lymphocytes, NF-κB is also involved in the growth of some types of B-cell lymphomas, and many oncogenic mutations involved in constitutive activation of the NF-κB pathway were recently identified in such cancers. In this review, we first summarize the function of NF-κB in B-cell development and activation, and then describe recent progress in understanding the molecular mechanism of receptor-mediated activation of the IKK complex, focusing on the roles of the ubiquitin system. In the last section, we describe oncogenic mutations that induce NF-κB activation in B-cell lymphoma. |
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