Related Experiment Video
Updated: Jul 9, 2026

05:53
Use of a Hanging-weight System for Liver Ischemia in Mice
Published on: August 7, 2012
Roles of nuclear factor-kappaB in postischemic liver
Thomas Shin1, Satoshi Kuboki, Alex B Lentsch
1Department of Surgery, University of Cincinnati, Cincinnati, Ohio, USA.
Summary
Nuclear factor-kappaB (NF-kappaB) plays diverse roles in liver injury following ischemia/reperfusion (I/R). This review explores its functions in inflammation, cell death, and regeneration during hepatic I/R.
Area of Science:
- Hepatology
- Molecular Biology
- Immunology
Background:
- Hepatic ischemia/reperfusion (I/R) injury causes liver dysfunction and damage.
- I/R injury involves early oxidative stress and acute inflammation.
- Nuclear factor-kappaB (NF-kappaB) is central to the inflammatory response in I/R injury.
Purpose of the Study:
- To review the multifaceted roles of NF-kappaB in hepatic I/R injury.
- To highlight NF-kappaB's involvement beyond pro-inflammatory gene regulation.
Main Methods:
- Literature review of studies on NF-kappaB and hepatic I/R.
- Analysis of NF-kappaB's functions in different phases of I/R injury.
Main Results:
- NF-kappaB regulates pro-inflammatory gene expression.
- NF-kappaB mediates anti-apoptotic gene expression, protecting against cell death.
- NF-kappaB is involved in preventing reactive oxygen species accumulation.
- NF-kappaB facilitates liver regeneration post-I/R.
- NF-kappaB mediates protective effects of ischemic preconditioning.
Conclusions:
- NF-kappaB has diverse and critical functions in the liver's response to I/R injury.
- Understanding NF-kappaB's roles is key to developing therapeutic strategies for I/R injury.
- NF-kappaB's involvement in cell survival and regeneration offers potential therapeutic targets.
Related Concept Videos
Liver Regeneration
The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are large...
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are large...
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-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
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...
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...
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
Cirrhosis II: Pathophysiology
Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...
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...
