Related Experiment Video
Updated: Jul 3, 2026
04:43
Targeted Knockdown of Genes in the Choroid Plexus
Published on: June 16, 2023
A2B adenosine receptor gene deletion attenuates murine colitis
Vasantha L Kolachala1, Matam Vijay-Kumar, Guillaiume Dalmasso
1Division of Digestive Diseases, Emory University School of Medicine, Atlanta, Georgia 30322, USA.
Gastroenterology
|July 8, 2008
Summary
The A(2B) adenosine receptor promotes inflammation in colitis. Blocking this receptor may treat inflammatory bowel disease flares.
Area of Science:
- Gastroenterology
- Immunology
- Pharmacology
Background:
- The A(2B) adenosine receptor (A(2B)AR) is highly expressed in the colon.
- A(2B)AR levels increase during colitis, suggesting a role in the disease.
Purpose of the Study:
- To investigate the role of A(2B)AR in the development of experimental colitis.
- To explore the underlying mechanisms of A(2B)AR's effects in colitis.
Main Methods:
- Induction of colitis in A(2B)AR-null mice using dextran sodium sulfate (DSS), 2,4,6-trinitrobenzene sulfonic acid (TNBS), and Salmonella typhimurium.
- Assessment of colitis severity through clinical and histological scoring.
- Measurement of keratinocyte-derived chemokine (KC) levels.
Main Results:
- Colitis was less severe in A(2B)AR-null mice compared to wild-type mice.
- Reduced clinical scores, histological damage, and myeloperoxidase activity were observed in A(2B)AR-null mice.
- A(2B)AR-null mice showed increased susceptibility to systemic Salmonella infection and decreased KC levels.
Conclusions:
- A(2B)AR plays a pro-inflammatory role in colitis.
- A(2B)AR antagonism could be a potential therapeutic strategy for acute inflammatory intestinal diseases like inflammatory bowel disease flares.
