PeptideDB

BG-136

BG-136

CAS No.:

BG-136 is an innate immune stimulant that can be isolated from Durvillaea Antarctica. It can stimulate the activation of
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This product is for research use only, not for human use. We do not sell to patients.

BG-136 is an innate immune stimulant that can be isolated from Durvillaea Antarctica. It can stimulate the activation of both innate and adaptive immune cells in the tumor microenvironment (TME), thereby exerting a broad-spectrum anti-tumor effect.

Physicochemical Properties


Molecular Weight 4000-7000
Appearance Typically exists as solids at room temperature
HS Tariff Code 2934.99.9001
Storage

Powder-20°C 3 years

4°C 2 years

In solvent -80°C 6 months

-20°C 1 month

Shipping Condition Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity


ln Vivo BG136 (0.3 mg/kg, iv twice a week) was able to inhibit tumor growth in vivo in the C57BL/6 J mouse colorectal cancer (CRC) cell line MC38 allogeneic tumor model without observed weight loss[1]. BG136 (0.3 mg/kg, iv twice a week) combined with anti-PD1 antibody (200 μg per mouse, iv once a week) in the MC38 syngeneic tumor model enhanced the tumor inhibitory effect of anti-PD1 antibody and more effectively inhibited tumor growth[1].
Animal Protocol Animal/Disease Models: MC38 syngeneic tumor C57BL/6 J mice model[1].
Doses: 0.3 mg/kg
Route of Administration: i.v. twice a week alone, or BG136 in combination with PD1 antibody (200 μg per mouse, i.v. once a week)
Experimental Results: Significantly increased the infiltration of total CD45+ immune cells and CD8+ T cells in the tumor microenvironment (TME), as well as the proportion of cells expressing tumor necrosis factor α (TNFα) and granzyme B. Significantly upregulated the antigen-presenting related genes CD74, H2-Ab1, and CD8b1, as well as the pro-inflammatory cytokine IFNγ. Led to a significant decrease in Ki67 expression, indicating the inhibition of cell proliferation in the tumor microenvironment (TME), when used in combination with anti-PD1 antibody. Was able to induce the gene expression of the pro-inflammatory cytokines IFNγ and TNFα, as well as the expression of the antitumor M1-like macrophage marker gene iNOS, and inhibit the expression of the tumor-promoting M2-like macrophage marker Arginase 1, when used in combination with anti-PD1 antibody.
References

[1]. A β-1, 3/1, 6-glucan enhances anti-tumor effects of PD1 antibody by reprogramming tumor microenvironmentJ. International Journal of Biological Macromolecules, 2024, 279: 134660.


Solubility Data


Solubility (In Vitro) May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo) Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300:Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)

Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders

Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)