Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Inflammatory Bowel Disease II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

1.5K
Introduction
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...
1.5K
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF01:24

Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF

732
Tumor Necrosis Factor (TNF), a proinflammatory cytokine, contributes significantly to the inflammation seen in Crohn's disease. It exists as soluble TNF and membrane-bound TNF, with actions mediated through TNF receptors (TNFR). TNFR activation leads to the release of proinflammatory cytokines, T-cell activation, collagen production, and leukocyte migration, all contributing to inflammation in Crohn's disease. Anti-TNF monoclonal antibodies, namely infliximab (Remicade), adalimumab...
732
Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

901
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
901
X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

5.2K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
5.2K
Transducer Mechanism: Nuclear Receptors01:31

Transducer Mechanism: Nuclear Receptors

5.4K
Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors.
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
5.4K
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents01:29

Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents

659
Crohn's disease is an inflammatory bowel disorder marked by chronic inflammation of the GI tract. Various treatment strategies for Crohn's disease are employed, such as immunomodulatory agents, glucocorticoids, and biologics or anti-TNF therapy. Azathioprine (Imuran), a commonly used immunomodulatory drug for Crohn's disease, is converted in the body to mercaptopurine, which inhibits purine biosynthesis and cell proliferation. Both are utilized in severe cases of Inflammatory Bowel...
659

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same authorSame journal

Fattening mother's milk with oxytocin.

Science signaling·2026
Same author

A hostile environment for a commensal.

Science signaling·2026
Same author

The fatty acid method for regrowing hair.

Science signaling·2025
Same author

Softer nuclei for whiter brown fat.

Science signaling·2025
Same author

A sphingomyelin shield for flaviviruses.

Science signaling·2025
Same author

The dose makes the poison.

Science signaling·2025
Same journal

ZNRF3 and RNF43 are active monomeric E3 ubiquitin ligases that self-associate.

Science signaling·2026
Same journal

Allosteric ligands with distinct properties uncover tissue-specific physiological regulation mediated by free fatty acid receptor 2.

Science signaling·2026
Same journal

Diacylglycerol kinase ζ in B lymphocytes supports CD40-mediated immune synapse formation, mTORC1 signaling, and plasma cell fate.

Science signaling·2026
Same journal

The APC/C adaptor Cdh1 stabilizes STING to potentiate innate immune activation in renal cell carcinoma.

Science signaling·2026
Same journal

Virion display reveals MD-1 as an endogenous agonist for the orphan receptor GPRC5B.

Science signaling·2026
See all related articles

Related Experiment Video

Updated: Mar 27, 2026

Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation
09:07

Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation

Published on: June 21, 2016

8.7K

RXRα marks the spot for Crohn's disease.

Wei Wong1

  • 1Science Signaling, AAAS, Washington, DC 20005, USA.

Science Signaling
|March 24, 2026
PubMed
Summary
This summary is machine-generated.

Western diets rich in polyunsaturated fatty acids activate Retinoid X Receptor alpha (RXRα), worsening Crohn's disease. This finding highlights a dietary link to inflammatory bowel disease progression.

More Related Videos

Visualization of Estrogen Receptors in Colons of Mice with TNBS-Induced Crohn's Disease using Immunofluorescence
08:02

Visualization of Estrogen Receptors in Colons of Mice with TNBS-Induced Crohn's Disease using Immunofluorescence

Published on: March 12, 2020

7.2K
Investigating Target Gene Function in a CD40 Agonistic Antibody-induced Colitis Model using CRISPR/Cas9-based Technologies
09:08

Investigating Target Gene Function in a CD40 Agonistic Antibody-induced Colitis Model using CRISPR/Cas9-based Technologies

Published on: June 2, 2021

2.2K

Related Experiment Videos

Last Updated: Mar 27, 2026

Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation
09:07

Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation

Published on: June 21, 2016

8.7K
Visualization of Estrogen Receptors in Colons of Mice with TNBS-Induced Crohn's Disease using Immunofluorescence
08:02

Visualization of Estrogen Receptors in Colons of Mice with TNBS-Induced Crohn's Disease using Immunofluorescence

Published on: March 12, 2020

7.2K
Investigating Target Gene Function in a CD40 Agonistic Antibody-induced Colitis Model using CRISPR/Cas9-based Technologies
09:08

Investigating Target Gene Function in a CD40 Agonistic Antibody-induced Colitis Model using CRISPR/Cas9-based Technologies

Published on: June 2, 2021

2.2K

Area of Science:

  • Gastroenterology
  • Molecular Biology
  • Nutritional Science

Background:

  • Crohn's disease is a chronic inflammatory bowel disease with complex etiology.
  • Dietary factors are increasingly recognized as modulators of gut inflammation.

Purpose of the Study:

  • To investigate the role of polyunsaturated fatty acids (PUFAs) in Western diets on Crohn's disease pathogenesis.
  • To elucidate the molecular mechanisms, specifically the involvement of Retinoid X Receptor alpha (RXRα).

Main Methods:

  • Utilized cell-based assays and animal models of inflammatory bowel disease.
  • Examined the activation of RXRα by dietary PUFAs.
  • Assessed the impact on inflammatory markers and disease severity.

Main Results:

  • Dietary PUFAs significantly activated RXRα.
  • Activated RXRα promoted key inflammatory pathways implicated in Crohn's disease.
  • Increased disease severity and inflammation were observed in response to PUFA-activated RXRα.

Conclusions:

  • Polyunsaturated fatty acids in a Western diet act through RXRα activation to exacerbate Crohn's disease.
  • Targeting RXRα or dietary PUFA intake may offer therapeutic strategies for Crohn's disease.