Structural Characterization and In Vivo Anti-Inflammatory Activity of Fucoidan from Cystoseira crinita (Desf.) Borry

Area of Science:

• Marine Biotechnology
• Pharmacology
• Immunology

Background:

• Fucoidan, a sulfated polysaccharide from brown seaweed, is known for its diverse biological activities.
• Investigating fucoidan from *C. crinita* offers potential for novel anti-inflammatory agents.

Purpose of the Study:

• To evaluate the anti-inflammatory effects of fucoidan isolated from *C. crinita* in rat models.
• To assess the impact of this fucoidan on serum inflammatory cytokines (TNF-α, IL-1β, IL-6, IL-10) and peritonitis models.

Main Methods:

• Fucoidan was isolated from *C. crinita* and characterized as a sulfated xylogalactofucan.
• Anti-inflammatory activity was tested using histamine-induced paw edema and carrageenan-induced peritonitis models in rats.
• Serum cytokine levels (TNF-α, IL-1β, IL-6, IL-10) were measured in systemic inflammation models.

Main Results:

• Fucoidan from *C. crinita* exhibited significant anti-inflammatory effects in the paw edema model, outperforming commercial fucoidan.
• A notable decrease in serum IL-1β and TNF-α levels was observed in rats treated with *C. crinita* fucoidan.
• A trend towards reduced TNF-α in peritoneal fluid was noted in the peritonitis model, though not statistically significant.

Conclusions:

• Fucoidan isolated from *C. crinita* possesses significant anti-inflammatory properties, particularly in reducing edema and pro-inflammatory cytokines.
• This marine-derived compound demonstrates therapeutic potential for inflammatory conditions.