Nuclear factor-kappaB: fine-tuning a central integrator of diverse biologic stimuli

Teresa Krakauer1

  • 1Department of Immunology, Division of Integrated Toxicology, United States Army Medical Research Institute of Infectious Diseases, Frederick, Maryland 21702-5011, USA. Teresa.krakauer@amedd.army.mll

Insights

Nuclear factor kappa B (NF-κB) regulates inflammation and immunity. Fine-tuning NF-κB activation requires understanding its temporal phases and deactivation programs for effective therapeutic targeting in diseases.

Area of Science:

  • Immunology
  • Molecular Biology
  • Cell Biology

Background:

  • Nuclear factor kappa B (NF-κB) protein family is crucial for regulating inflammation, innate immunity, cell survival, and differentiation.
  • NF-κB pathway components are potential therapeutic targets for inflammation, infectious diseases, and cancer.

Purpose of the Study:

  • To emphasize the need for precise fine-tuning of NF-κB activation pathways.
  • To highlight the importance of understanding autoregulatory loops in the resolution phase of inflammation and infection.

Main Methods:

  • Temporal dissection of NF-κB activation phases.
  • Analysis of endogenous autoregulatory deactivation programs in disease states.
  • Redefinition of drug/inhibitor treatment endpoints to correlate with temporal changes.

Main Results:

  • Current therapeutic interventions targeting NF-κB must consider the resolution phase of inflammation.
  • A deeper understanding of temporal activation and deactivation is necessary for effective drug development.

Conclusions:

  • Precise therapeutic targeting of NF-κB requires a temporal understanding of its activation and deactivation dynamics.
  • Redefining treatment endpoints to encompass these temporal changes is critical for successful intervention in inflammatory and infectious diseases.

Related Concept Videos

NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-kB-dependent Signaling Pathway02:26

NF-kB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
Regulation of Nuclear Protein Sorting01:45

Regulation of Nuclear Protein Sorting

Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...
Co-activators and Co-repressors02:04

Co-activators and Co-repressors

Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
General Transcription Factors01:30

General Transcription Factors

Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...