These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Distinct roles in NKT cell maturation and function for the different transcription factors in the classical NF-κB pathway.
    Author: Stankovic S, Gugasyan R, Kyparissoudis K, Grumont R, Banerjee A, Tsichlis P, Gerondakis S, Godfrey DI.
    Journal: Immunol Cell Biol; 2011 Feb; 89(2):294-303. PubMed ID: 20697425.
    Abstract:
    The nuclear factor (NF)-κB signalling pathway is known to be critical for natural killer T (NKT) cell differentiation; however, the role of individual NF-κB transcription factors and the precise developmental stages that they control remain unclear. We have investigated the influence of the classical NF-κB transcription factors NF-κB1, c-Rel and RelA on NKT cell development and function, using gene-deleted mice. Individually, none of these factors were essential for the requirement of NF-κB signalling in early NKT cell development before NK1.1 expression, in contrast to earlier reports in which the classical NF-κB pathway was globally disrupted. Instead, we found that each factor played a non-redundant role in later stages of NKT cell maturation and function. Although NF-κB1 deficiency resulted in a moderate reduction in mature NK1.1+ NKT cells, this was found to be more subtle than previously reported. RelA deficiency had a more profound effect on the NK1.1+ stage of NKT cell development, whereas c-Rel-deficient mice had normal NKT cell numbers. All three factors (NF-κB1, RelA and c-Rel) were necessary for normal NKT cell cytokine production. Notably, IL-17, which is produced by a specific subset of NKT cells (NKT-17 cells), defined as NK1.1(-)CD4(-), was not impaired by a lack of these individual NF-κB transcription factors, nor was this subset depleted, suggesting that NKT-17 cells are regulated independently of the NF-κB pathway. Thus, individual NF-κB family members have a largely redundant role in early NKT cell development, but each of them has an important and distinct role in NKT cell maturation and/or function.
    [Abstract] [Full Text] [Related] [New Search]