Genistein improves inflammatory response and colonic function through NF-κB signal in DSS-induced colonic injury

Area of Science:

• Gastroenterology
• Pharmacology
• Immunology

Background:

• Dextran sulfate sodium (DSS) induces colonic injury, inflammation, and barrier dysfunction in experimental models.
• Genistein, a soy isoflavone, has demonstrated anti-inflammatory and protective properties.

Purpose of the Study:

• To investigate the protective effects of genistein against DSS-induced colonic injury.
• To elucidate the underlying mechanisms of genistein's action in vitro and in vivo.

Main Methods:

• Induction of colonic injury using DSS in mouse models and Caco-2 cell cultures.
• Administration of genistein to assess its impact on injury markers, inflammation, and gut barrier function.
• Analysis of cytokine expression and Toll-like receptor 4/nuclear factor-kappa B (TLR4/NF-κB) signaling pathways.

Main Results:

• DSS exposure led to growth suppression, colonic injury, inflammation, and barrier dysfunction.
• Dietary genistein mitigated DSS-induced colonic injury, reducing weight, bleeding, and diarrhea.
• Genistein downregulated inflammatory cytokines, improved colonic permeability, and inhibited TLR4/NF-κB activation in Caco-2 cells.

Conclusions:

• Genistein exhibits protective potential against DSS-induced colonic injury, inflammation, and gut dysfunction.
• The protective effects of genistein may involve the modulation of the TLR4/NF-κB signaling pathway.
• Genistein represents a potential therapeutic agent for managing colonic inflammatory conditions.