What genes does NF kB activate?

NF-κB is a key transcription factor of M1 macrophages and is required for induction of a large number of inflammatory genes, including those encoding TNF-α, IL-1β, IL-6, IL-12p40 and cyclooxygenase-2.

What does the NF kB pathway do?

Nuclear factor kappa B (NF-κB) is an ancient protein transcription factor (Salminen et al., 2008) and considered a regulator of innate immunity (Baltimore, 2009). The NF-κB signaling pathway links pathogenic signals and cellular danger signals thus organizing cellular resistance to invading pathogens.

Does NFkB induce IFN?

This review will summarize the recent finding that the nuclear factor κB (NF-κB) transcription factor also plays an important role in regulating the cellular response to IFNs. These pathways lead to the induction of the IFNα/β genes, which have been the subject of many reviews.

What regulates NF kB?

NF-κB is a major transcription factor that regulates genes responsible for both the innate and adaptive immune response. Upon activation of either the T- or B-cell receptor, NF-κB becomes activated through distinct signaling components.

What does NF-kB mean?

NF-kB (which stands for nuclear factor kappa-light-chain-enhancer of activated B cells, which is why we use NF-kB) is a protein complex that has a lot of roles to play. It’s an important starting player in the immune system, where it helps to stimulate antibodies.

Does NF-kB induce apoptosis?

In a number of contexts, and particularly in response to cellular stress, stimulation of the NF-kappaB (NF-κB) pathway promotes apoptosis. One mechanism underlying this pro-apoptotic activity is nucleolar sequestration of RelA, which is reported to cause cell death by repressing NF-κB-driven transcription.

What happens when NF-kB is inhibited?

Therefore, inhibition of NF-κB can reduce the pathologic effects induced by chronic stimulation of the inflammatory response, as seen in many chronic inflammatory diseases or animal models of inflammation.

What does NF kB mean?

How is NF kB measured?

Another common method to measure NF-κB activity at the transcriptional activation level is to use a gene reporter assay, which introduces an exogenous NF-κB consensus promoter sequence linked to a measurable ‘reporter gene’ such as luciferase (18).

What molecule is holding NF-kB inactive in the cytoplasm?

NEMO is part of the enzymatic IKK (IκB kinase) complex that phosphorylates IκB, the inhibitor that binds to the transcription factor NF-κB and holds it inactive in the cytoplasm.

What is NF-kB inhibitor?

NFkB1 (NFkB p50) and NFkB2 (NFkB p52) are class I members of the Rel/NFkB family of transcription factors that also includes RelA, c-Rel and RelB. Rel/NFkB members regulate expression of genes that participate in immune, apoptotic and oncogenic processes.

How does P53 induce apoptosis?

P53 induces apoptosis in nontransformed cells mostly by direct transcriptional activation of the pro-apoptotic BH3-only proteins PUMA and (to a lesser extent) NOXA. Combined loss of the p53 effectors of apoptosis (PUMA plus NOXA) and cell cycle arrest/cell senescence (p21) does not cause spontaneous tumour development.