PeptideDB

SGP8 855790-98-6

SGP8 855790-98-6

CAS No.: 855790-98-6

SGP8 (IAVPGEVA) is an octapeptide produced by hydrolysis of soybean 11 S globulin, which has the effects of regulating l
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SGP8 (IAVPGEVA) is an octapeptide produced by hydrolysis of soybean 11 S globulin, which has the effects of regulating lipid metabolism, inflammation and fibrosis. SGP8 (IAVPGEVA) exhibits inhibitory activity on DPP4 and inhibits the JNK-c-Jun signaling pathway, and has the ability to inhibit non-alcoholic steatohepatitis (NASH).

Physicochemical Properties


Molecular Formula C34H58N8O11
Molecular Weight 754.87
CAS # 855790-98-6
Appearance Typically exists as solid 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


Targets DPP-4
ln Vitro SGP8 (0,100 and 500 µM; 24 h) has regulatory effects on lipid metabolism, inflammation and fibrosis[1]. SGP8 (0,100 and 500 µM; 24 h) significantly increased serum GLP-1 levels in vivo and SGP8 has inhibitory activity against DPP4[1]. Real Time qPCR[1] Cell Line: L02 cells Concentration: 0,100 and 500 µM Incubation Time: 24h Result: Improved the mRNA expression of lipid metabolism genes related to Cd36, Scd1, Cpt1 and Pparα and significantly reduced the mRNA expression of inflammatory genes Tnfα, Il-1β, and Ccl5.
ln Vivo SGP8 (15 mg/kg, intraperitoneally injected once a day for 4 weeks) alleviates MCD-induced steatohepatitis in mice[1]. SGP8 (15 mg/kg, intraperitoneally injected once a day for 8 weeks) alleviates HFD-induced liver damage and metabolic disorders in mice[1].
Cell Assay Western Blot Analysis[1]
Cell Types: L02
Tested Concentrations: 0,100 and 500 µM
Incubation Duration: 24h
Experimental Results: Reduced the expression of lipid metabolism genes related to CD36, FAS, and SREBP-1 compared to the 1 mM PO model group.

Immunofluorescence[1]
Cell Types: LX2
Tested Concentrations: 0 and 500 µM
Incubation Duration: 24h
Experimental Results: Reduced effectively TGFβ1-induced expression of α-SMA and Collagen I protein expression.
Animal Protocol Animal/Disease Models:Healthy 7-week-old male C57BL/6J mice (22 and 27 g)[1]
Doses: 15 mg/kg; everydays for four weeks
Route of Administration: i.g.
Experimental Results: Did not reverse the weight loss of mice caused by the MCD diet. Reduces the ratio of liver weight to body weight, as well as liver TG and TC content. Reduces the activities of ALT and AST in the serum of MCD dietinduced NASH mice. Improved liver fibrosis in MCD diet-induced NASH mice.
References

[1]. Peng Ma,et al. IAVPGEVA: Orally Available DPP4-Targeting Soy Glycinin Derived Octapeptide with Therapeutic Potential in Nonalcoholic Steatohepatitis.Journal of Agricultural and Food Chemistry. 2024, 72, 13, 7167–7178.


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.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.3247 mL 6.6237 mL 13.2473 mL
5 mM 0.2649 mL 1.3247 mL 2.6495 mL
10 mM 0.1325 mL 0.6624 mL 1.3247 mL
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.