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Th1/Th2 Differentiation and B Cell Function by the Atypical PKCs and Their Regulators.
MedLine Citation:
PMID:  22888333     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The members of the atypical Protein Kinase Cs (aPKC) kinase subfamily, PKCζ and PKCλ/ɩ, as well as their adapters, p62 and Par-6, form part of the PB1-domain-containing group of signaling regulators. Both adapters serve to locate through heterotypic interactions the aPKCs into the NF-κB and cell polarity pathways, respectively. Both signaling cascades have been critically implicated in T cell function in vitro and in vivo. The analysis of gene-knockout (KO) mice deficient in the different PB1 molecules is providing more definitive information on the actual role that the aPKCs and other PB1-containing molecules play in B cell biology and T cell polarity, survival, and differentiation toward the different effector lineages in vivo and at the cellular ex vivo level. Here we discuss recent data generated from the analysis of KO mice linking the control of cell polarity by PKCλ/ɩ and PKCζ, their adapter p62, and the Par-4 inhibitor, in the control of B and T cell signaling and differentiation. Altogether, these genetic and biochemical evidences reveal the existence of a PB1-orchestrated signaling network that acts to control Th2 differentiation in vitro and in vivo, and the gene transcriptional programs that are essential during the B cell maturation and function and Th2 differentiation.
Authors:
Pilar Martin; Jorge Moscat
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Publication Detail:
Type:  Journal Article     Date:  2012-08-06
Journal Detail:
Title:  Frontiers in immunology     Volume:  3     ISSN:  1664-3224     ISO Abbreviation:  Front Immunol     Publication Date:  2012  
Date Detail:
Created Date:  2012-08-13     Completed Date:  2012-08-23     Revised Date:  2013-08-13    
Medline Journal Info:
Nlm Unique ID:  101560960     Medline TA:  Front Immunol     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  241     Citation Subset:  -    
Affiliation:
Department of Vascular Biology and Inflammation, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III Madrid, Spain.
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