Related Experiment Video
Updated: Jun 10, 2025

A Guide to Production, Crystallization, and Structure Determination of Human IKK1/α
Published on: November 2, 2018
N4BP3 facilitates NOD2-MAPK/NF-κB pathway in inflammatory bowel disease through mediating K63-linked RIPK2
Wang Jiang1, Yan Zhao2, Min Han3
1Department of Digestive Diseases, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, 161 Shaoshan Road, Changsha, 410000, China.
Abstract:
The NOD2 signaling pathway, which plays an important role in the mechanisms of inflammatory bowel disease (IBD) development, has been closely associated with ubiquitination. It was revealed in this study that NOD2 receptor activation could obviously affect the expression of 19 ubiquitination-related genes, with N4BP3 being the most prominently expressed and upregulated. In addition, N4BP3 knockdown was found to reduce the mRNA levels of MDP-induced inflammatory factors, while N4BP3 overexpression elevated their mRNA levels as well as the levels of phospho-ERK1/2, phospho-JNK, phospho-P38 and phospho-NF-κB P65 proteins. Immunoprecipitation tests showed that N4BP3 could pull down RIPK2 and promote its K63-linked ubiquitination. In human tissue specimen assays and mouse experiments, we found that the expression of N4BP3 was significantly elevated in Crohn's disease (CD) patients and IBD mice, and N4BP3 knockdown reduced the dextran sulfate sodium-induced pathological score and the expression of inflammatory factors in the mouse colon tissue. In conclusion, N4BP3 is able to interact with RIPK2 and promote its K63-linked ubiquitination, to further promote the NOD2-MAPK/NF-κB pathway, thereby increasing promoting the release of inflammation factors and the degree of IBD inflammation.
More Related Videos
10:57NF-κB-dependent Luciferase Activation and Quantification of Gene Expression in Salmonella Infected Tissue Culture Cells
Published on: January 12, 2020
09:15Tyramide Signal Amplification for the Immunofluorescent Staining of ZBP1-Dependent Phosphorylation of RIPK3 and MLKL After HSV-1 Infection in Human Cells
Published on: October 20, 2022
Related Concept Videos
NF-κB-dependent Signaling Pathway
NF-κB-dependent Signaling Mechanism
The...
Regulation of the Unfolded Protein Response
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF
MAPK Signaling Cascades
Inflammatory Bowel Disease IV: Pharmacological Management
Pharmacologic...