Abstract:
:Phosphoinositide 3-kinase (PI3K) defines a family of lipid kinases that direct a wide range of cellular processes and cell fate decisions. Since its discovery, and that of its enzymatic antagonist PTEN, much of the focus on PI3K has been on its oncogenic potential. In recent years, studies on PI3K signaling in B lymphocytes have established the importance of this pathway in effecting B cell differentiation and associated molecular events such as V(D)J recombination and class switch recombination. Intriguing new findings also indicate that there is specificity in the PI3K pathway in B cells, including preferential expression or usage of particular PI3K isoforms and counter-regulation by the PTEN and SHIP phosphatases. The role of PI3K adaptor proteins (CD19, BCAP, and TC21) has also undergone revision to reflect both shared and unique properties. The emergence of Foxo1 as a critical PI3K regulatory target for B cell differentiation has united membrane proximal regulatory events orchestrated by PI3K/PTEN/SHIP with key transcriptional targets. Insights into the regulation and impact of PI3K signaling have been brought to bear in new treatments for B cell malignancies, and will also be an important topic of consideration for B cell-dependent autoimmune diseases.
journal_name
Curr Opin Immunoljournal_title
Current opinion in immunologyauthors
Baracho GV,Miletic AV,Omori SA,Cato MH,Rickert RCdoi
10.1016/j.coi.2011.01.001subject
Has Abstractpub_date
2011-04-01 00:00:00pages
178-83issue
2eissn
0952-7915issn
1879-0372pii
S0952-7915(11)00002-1journal_volume
23pub_type
杂志文章,评审abstract::Epstein-Barr virus induces a potent cytotoxic T lymphocyte response in man that is preferentially directed towards a particular subset of the virus latent cycle antigens; the immunodominance of these proteins, apparent in both primary and memory responses, may reflect some differential access to the HLA class I proces...
journal_title:Current opinion in immunology
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abstract::The molecular repertoire for innate recognition of bacterial pathogens has expanded rapidly in the past decade. These immunosensors include Toll-like receptors and the more recently defined NOD-like receptors (NLRs): NODs, NALPs, NAIP and IPAF. Toll-like receptors signal from the cell surface or endosome upon ligand b...
journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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abstract::Innate lymphoid cells (ILCs) constitute a heterogeneous population of cytokine-secreting cells that colonize different tissues and are heavily reliant on cytokines and other secreted factors for their development, maintenance and effector functions. Most ILCs are tissue resident and differentiate in non-lymphoid perip...
journal_title:Current opinion in immunology
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abstract::The past year has seen a spate of research in the use of HLA transgenic mice in the identification of self antigens associated with autoimmunity. Dominant T cell determinants - and, in a few cases, B cell determinants - have been characterized in the context of disease-predisposing HLA DR and DQ genes for at least thr...
journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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journal_title:Current opinion in immunology
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