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CAS No. : 71208-06-5
MCE 国际站:Lewis X trisaccharide
产品活性:Lewis X trisaccharide (Lewis X, Lex) 是一种强效 TH2 调节剂,拮抗 LPS 诱导的 IL-12 的免疫表达。Lewis X trisaccharide 是人组织血型抗原,在细胞-细胞粘附中起关键作用,是一种肿瘤标志物。Lewis X trisaccharide 也被用于血吸虫病的免疫学研究。
研究领域:Anti-infection
作用靶点:Parasite
In Vitro: Lewis X trisaccharide-BSA (25 μg/mL; 30 min; before LPS stimulation of 10 ng/mL for 4 h) IL-12p40 and suppresses IL-12p70 protein expression induced by Lipopolysaccharide (LPS, HY-D1056).
Lewis X trisaccharide (2 μM; 30 min; before LPS stimulation of 10 ng/mL for 2 h) decreases nuclear NF-κB concentration in mice bone marrow derived dendritic cells (BDDCs).
Lewis X trisaccharide-BSA (25 μg/mL; 48 h) or Lewis X trisaccharide (5 μg/mL; 48 h) plus ovalbumin (OVA, 25 μg/mL) increases cytokines (IL-4, IL-13, and INF-γ) level in mice splenocytes.
Lewis X trisaccharide-containing glycoconjugates stimulates B cells to proliferate and to produce factors that down-regulates the TH1 immune response and up-regulates the TH2 immune response.
In Vivo: Lewis X trisaccharide ( 5 μg, combinded with 50 μg ovalbumin; s.c.; once a week for 2 weeks) regulates IgE/TH2 responses, and selectively increases the IgE and IgG1 responses in C3H mice, independent of the LPS-TLR4 signaling.
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