Abstract
Backgroundβ-1,3-Xylooligosaccharides (XOS-3) extracted from Caulerpa lentillifera have shown potential antioxidative and anti-tumor properties, but research on their biological activities, particularly their anti-osteoarthritis effects, is still in early stages.ResultsXOS-3 were produced by eco-friendly enzymatic hydrolysis, displaying a semi-crystalline structure with predominant xylose, xylobiose, xylotriose, and xylotetraose components which were confirmed by IC, SEM, FT-IR, and XRD analysis. Compared with β-1,4-xylooligosaccharides, XOS-3 had stronger antioxidant properties, and the scavenging rate of O2•− and DPPH• radicals was 82.31% and 58.44% at 2.0 mg/mL respectively. In vitro studies, XOS-3 significantly improved cell viability in IL-1β-induced rat chondrocytes from 43.41 to 73.5% at 100 μg/mL, demonstrating anti-inflammatory and cartilage-protective effects by modulating MMP13 and COL2A1 expression.ConclusionsThe study displayed the potential antioxidative and anti-osteoarthritis effects of XOS-3, offering new visuals for the development of marine polysaccharides in the treatment of osteoarthritis.Graphical
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