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  3. Laminaran

Laminaran is an β-1-3-glucan and a typical ligand for Dectin-1 from Eisenia Bicyclis, has potent immunomodulating, radioprotective, and anticancer activities. Laminaran is made up of β (1→3)-glucan with β (1→6)-branches and can be catalyzed by enzymes such as laminarinase (EC 3.2.1.6) that breaks the β (1→3) bonds. Laminaran is a promising immune stimulatory molecule for use in cancer immunotherapy.

For research use only. We do not sell to patients.

CAS No. : 9008-22-4

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Customer Review

Based on 1 publication(s) in Google Scholar

Top Publications Citing Use of Products

1 Publications Citing Use of MCE Laminaran

Bio/Physico-chemical Assay
RT-PCR
ELISA
Histological Imaging/Staining

    Laminaran purchased from MedChemExpress. Usage Cited in: Int Immunopharmacol. 2025 Jan 9:147:114014.  [Abstract]

    Laminaran (100 μM) treatment significantly increased the HTDNA-induced expression of IFNB in Hela cells.

    Laminaran purchased from MedChemExpress. Usage Cited in: Int Immunopharmacol. 2025 Jan 9:147:114014.  [Abstract]

    Laminaran (50-500 µM; 6 h) increased mRNA expression level of IFNB in THP-1 cells stimulated with HTDNA.

    Laminaran purchased from MedChemExpress. Usage Cited in: Int Immunopharmacol. 2025 Jan 9:147:114014.  [Abstract]

    Laminaran (100 µM; 6 h) increased IFN-β production in THP-1 cells stimulated with HTDNA.

    Laminaran purchased from MedChemExpress. Usage Cited in: Int Immunopharmacol. 2025 Jan 9:147:114014.  [Abstract]

    Laminaran (100 µM; 6 h) increased mRNA expression levels of CXCL10 and ISG56 in THP-1 cells stimulated with HTDNA.

    Laminaran purchased from MedChemExpress. Usage Cited in: Int Immunopharmacol. 2025 Jan 9:147:114014.  [Abstract]

    Laminaran (25 mg/kg; i.v.; once daily for 3 weeks) decreased inflammatory cell infiltration and tissue damage in the lung of C57BL/6J mice after HSV-1 infection.

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    Description

    Laminaran is an β-1-3-glucan and a typical ligand for Dectin-1 from Eisenia Bicyclis, has potent immunomodulating, radioprotective, and anticancer activities[1]. Laminaran is made up of β (1→3)-glucan with β (1→6)-branches and can be catalyzed by enzymes such as laminarinase (EC 3.2.1.6) that breaks the β (1→3) bonds[2]. Laminaran is a promising immune stimulatory molecule for use in cancer immunotherapy[3].

    In Vitro

    Laminaran (100-800 μg/mL; 24 hours) is not cytotoxic against normal epidermal cells JB6 Cl41 and human melanoma cells SK-MEL-28, the percentage of inhibition of living cells number is less than 15 % at concentrations range up to 800 μg/mL after 24 h of treatment[1].
    Laminaran (200 μg/mL; 24-72 hours)does not cause any growth inhibition of SK-MEL-28 cells after 24 and 48 h of treatment, but decreases cells proliferation by 36 % after 72 h of treatment[1].
    Laminaran (25-50 μg/mL; 24 hours) at low concentration does not influence the phosphorylation of c-Raf (Ser259), ERK1/2 (Tyr202/Tyr204), and MEK1/2 (Ser 221) kinases as well as total expression level of investigated proteins. But decreases p-MEK, p-ERK1/2 at 50 μg/mL[1].

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

    Cell Viability Assay[1]

    Cell Line: JB6 Cl41 and SK-MEL-28 cells
    Concentration: 100, 200, 400, and 800 µg/mL
    Incubation Time: 24 hours
    Result: Showed no cytotoxic against normal epidermal cells JB6 Cl41 and human melanoma cells SK-MEL-28.

    Cell Proliferation Assay[1]

    Cell Line: SK-MEL-28 cells
    Concentration: 200 µg/mL
    Incubation Time: 24 hours
    Result: Decreased cell proliferation at 72 hours.

    Western Blot Analysis[1]

    Cell Line: SK-MEL-28 cells
    Concentration: 25 µg/mL; 50 µg/mL
    Incubation Time: 24 hours
    Result: Inhibited phosphorylation of c-Raf, MEK1/2, and ERK1/2 kinases.
    In Vivo

    Laminaran (intravenous injection; 12.5, 25, and 50 mg/kg; 21 days) and OVA (50 μg) combination significanly decreases the tumor masses when it compares with the PBS-, OVA-, and laminarin-treated mice[3].

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

    Animal Model: C57BL/6 mice injected s.c. with B16-OVA cells[3]
    Dosage: 12.5, 25, and 50 mg/kg; 21 days
    Administration: Intravenous injection
    Result: Prevented B16-OVA tumor growth by inducing Ag-specific immune responses.
    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    [Laminaran]

    Structure Classification
    Initial Source
    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 6 months
    -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    H2O : 16.67 mg/mL (Need ultrasonic)

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    In Vivo:

    For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  PBS

      Solubility: 33.33 mg/mL; Clear solution; Need ultrasonic

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    Working solution concentration: mg/mL
    This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
    The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
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    Help & FAQs
    • 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.

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    Product Name:
    Laminaran
    Cat. No.:
    HY-119109
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