A Technique to Generate a Murine Model of Dextran Sulfate Sodium-Induced Colitis

Abstract

Source: Du, Y., et al. Effects of Taste Signaling Protein Abolishment on Gut Inflammation in an Inflammatory Bowel Disease Mouse Model. J. Vis. Exp. (2018)

This video demonstrates a technique to generate a chemical-induced murine model of colitis — an inflammatory bowel disease. The mouse is allowed to consume a dextran sodium sulfate (DSS) solution for an adequate duration. Upon consumption, DSS damages the mucus and epithelial layer barrier in the colon, allowing gut microbes to enter the underlying tissue — where they are sensed by the resident immune cells to mediate an exaggerated immune response, resulting in inflammation.

Protocol

All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board.

1. Preparation of Mice and DSS

1. Keep the knockout (α-gustducin^-/-) mice and age-, gender-, and body weight-matched wild-type control (α-gustducin^+/+) C57BL/6 mice individually in clean cages.
   NOTE: The knockout mice have been backcrossed with C57BL/6 mice for over 20 generations and have a nearly 100% C57BL/6 genetic background.
2. Dissolve 30 g of dextran sulfate sodium (DSS) powder in 1 L of autoclaved wate....

Materials

List of materials used in this article

Name	Company	Catalog Number	Comments
Reagent
Dextran Sulfate Sodium Salt (DSS)	MP Biomedicals	2160110
Phosphate-Buffered Saline (PBS)	Sangon Biotech	B548117
BD 10 ml Syringe	BD Biosciences	309604
Instruments and equipment
Balance
Scissors
Forceps