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  4. Lewis X trisaccharide

Lewis X trisaccharide (Lewis X, Lex) is a potent TH2 regulator, antagonizes LPS-induced IL-12 immune expression. Lewis X trisaccharide is a human histo-blood group antigen, plays an key role in cell-cell adhesion, and servers as a tumor marker. Lewis X trisaccharide is highly expressed in the outer membrane of the parasite, can be used for the immunology research of schistosomiasis.

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Lewis X trisaccharide Chemical Structure

Lewis X trisaccharide Chemical Structure

CAS No. : 71208-06-5

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Lewis X trisaccharide Related Antibodies

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Description

Lewis X trisaccharide (Lewis X, Lex) is a potent TH2 regulator, antagonizes LPS-induced IL-12 immune expression. Lewis X trisaccharide is a human histo-blood group antigen, plays an key role in cell-cell adhesion, and servers as a tumor marker. Lewis X trisaccharide is highly expressed in the outer membrane of the parasite, can be used for the immunology research of schistosomiasis[1][2][3].

IC50 & Target

Schistosome

 

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)[1].
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)[1].
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[1].
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[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Lewis X trisaccharide Related Antibodies
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[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Mice (BALB/c, IL-12 deficient on a BALB/c background, TLR4-defective C3H/hej, or TLR4-wild type C3H/HeOuj mice) (6-8 weeks old)[1]
Dosage: 5 μg, combinded with 50 μg ovalbumin
Administration: Subcutaneous injection; once a week for 2 weeks
Result: In C3H mice, coupled with BSA (LeX-BSA) and elicited higher levels of specific IgE and IgG1, but not IgG2a, which were associated with increased levels of splenic TH2 cytokines when compared with those seen in BSA-sensitized mice.
In BALB/c mice, induced by ovalbumin, significantly increased levels of specific IgE, resulted IgG2a antibodies concomitant with reduced levels of serum IL-12p70.
In IL-12-deficient BALB/c mice, attenuated the downward trend of the above indicators.
Molecular Weight

529.49

Formula

C20H35NO15
CAS No.
Appearance

Solid

Color

Off-white to light brown

SMILES

OC[C@H]([C@@H]([C@@H]([C@H]1O)O)O)O[C@H]1O[C@H]([C@H](O)CO)[C@@H]([C@H](C=O)NC(C)=O)O[C@H]2[C@H]([C@@H]([C@@H]([C@@H](O2)C)O)O)O
Structure Classification
Initial Source

human
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Purity & Documentation
References
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Lewis X trisaccharide Related Classifications

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Lewis X trisaccharide71208-06-5Lewis XParasitegangliosideSialyl-Lewis-X tetrasaccharideSLexcell-cell adhesiontumor markerimmunology researchschistosomiasisparasitic diseaseP-selectindendritic cellsC-type lectin receptorInhibitorinhibitorinhibit

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