Phenformin HCl |
| Catalog No.GC10461 |
Phenformin HCl is an anti-diabetic drug from the biguanide class, can activate AMPK activity.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 834-28-6
Sample solution is provided at 25 µL, 10mM.
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Phenformin hydrochloride is an anti-diabetic drug from the biguanide class, can activate AMPK activity.
Phenformin stimulates the phosphorylation and activation of AMPKalpha1 and AMPKalpha2 without altering LKB1 activity[1]. Phenformin increases AMPK activity and phosphorylation in the isolated heart, the increase in AMPK activity is always preceded by and correlated with increased cytosolic [AMP][2]. Phenformin is a 50-fold more potent inhibitor of mitochondrial complex I than metformin. Phenformin robustly induces apoptosis in LKB1 deficient NSCLC cell lines. Phenformin at 2 mM similarly induces AMPK signaling as shown by increased P-AMPK and P-Raptor levels. Phenformin induces higher levels of cellular stress, triggering induction of P-Ser51 eIF2α and its downstream target CHOP, and markers of apoptosis at later times. Phenformin induces a significant increase in survival and therapeutic response in KLluc mice following long-term treatment[3]. Phenformin and AICAR increases AMPK activity in H441 cells in a dose-dependent fashion, stimulating the kinase maximally at 5-10 mm and 2 mm, respectively. Phenformin significantly decreases basal ion transport (measured as short circuit current) across H441 monolayers by approximately 50% compared with that of controls. Phenformin and AICAR significantly reduce amiloride-sensitive transepithelial Na+ transport compared with controls. Phenformin and AICAR suppress amiloride-sensitive Na+ transport across H441 cells via a pathway that includes activation of AMPK and inhibition of both apical Na+ entry through ENaC and basolateral Na+ extrusion via the Na+,K+-ATPase[4]. Phenformin-treated rats reveals a tendency towards a decrease in blood insulin level (radioimmunoassay)[5].
Phenformin increases levels of P-eIF2α and its target BiP/Grp78 in normal lung as well as in lung tumors of mice[3].
References:
[1]. Sakamoto K, et al. Activity of LKB1 and AMPK-related kinases in skeletal muscle: effects of contraction, phenformin, and AICAR. Am J Physiol Endocrinol Metab. 2004 Aug;287(2):E310-7.
[2]. Zhang L, et al. Metformin and phenformin activate AMP-activated protein kinase in the heart by increasing cytosolic AMP concentration. Am J Physiol Heart Circ Physiol. 2007 Jul;293(1):H457-66.
[3]. Moreira AL, et al. Thalidomide exerts its inhibitory action on tumor necrosis factor alpha by enhancing mRNA degradation. J Exp Med. 1993 Jun 1;177(6):1675-80.
[4]. Woollhead AM, et al. Phenformin and 5-aminoimidazole-4-carboxamide-1-beta-D-ribofuranoside (AICAR) activation of AMP-activated protein kinase inhibits transepithelial Na+ transport across H441 lung cells. J Physiol. 2005 Aug 1;566(Pt 3):781-92. Epub 2005
[5]. Dilman VM, et al. Inhibition of DMBA-induced carcinogenesis by phenformin in the mammary gland of rats. Arch Geschwulstforsch. 1978;48(1):1-8.
| Cell experiment [1]: | |
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Cell lines |
BRAFV600E Me-1 melanoma cells and HEK-293 cells |
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Preparation method |
The solubility of this compound in DMSO is > 12.1 mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below - 20 °C for several months. |
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Reacting condition |
1 or 5 mM; 2 hrs |
|
Applications |
In BRAFV600E Me-1 melanoma cell line (with impaired AMPK activation), 1 and 5 mM Phenformin significantly increased AMPK kinase activity, in a dose-dependent manner. A similar increase was also observed in HEK-293 cells (as control cells). These results implied that the presence of BRAFV600E in melanoma cells did not prevent the pharmacological activation of AMPK, and that AMPK was activated by the increase in phosphorylation of a key AMPK downstream target (ACC). |
| Animal experiment [2]: | |
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Animal models |
Tyr::CreER; BRAFCA/+; PTENlox/lox mice bearing single tumor induced by 4-HT |
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Dosage form |
100 mg/kg; p.o.; b.i.d. |
|
Applications |
In Tyr::CreER; BRAFCA/+; PTENlox/lox mice bearing single tumor induced by 4-HT, the combination of Phenformin and PLX4720 significantly inhibited tumor growth. PLX4720 alone substantially reduced the rate of tumor progression, but Phenformin alone only showed a modest inhibition on tumor growth in these mice. According to immunohistochemical analyses of these tumors, the Phenformin/PLX4720 combination dramatically promoted apoptotic cell death and inhibited tumor cell proliferation. |
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Other notes |
Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
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References: [1]. Petti C, Vegetti C, Molla A, Bersani I, Cleris L, Mustard KJ, Formelli F, Hardie GD, Sensi M, Anichini A. AMPK activators inhibit the proliferation of human melanomas bearing the activated MAPK pathway. Melanoma Res. 2012 Oct;22(5):341-50. [2]. Yuan P, Ito K, Perez-Lorenzo R, Del Guzzo C, Lee JH, Shen CH, Bosenberg MW, McMahon M, Cantley LC, Zheng B. Phenformin enhances the therapeutic benefit of BRAF(V600E) inhibition in melanoma. Proc Natl Acad Sci U S A. 2013 Nov 5;110(45):18226-31. |
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| Cas No. | 834-28-6 | SDF | |
| Chemical Name | 1-(diaminomethylidene)-2-(2-phenylethyl)guanidine;hydrochloride | ||
| Canonical SMILES | C1=CC=C(C=C1)CCN=C(N)N=C(N)N.Cl | ||
| Formula | C10H16ClN5 | M.Wt | 241.72 |
| Solubility | ≥ 12.1mg/mL in DMSO | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 4.137 mL | 20.6851 mL | 41.3702 mL |
| 5 mM | 0.8274 mL | 4.137 mL | 8.274 mL |
| 10 mM | 0.4137 mL | 2.0685 mL | 4.137 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
g
μL
Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)
Calculation results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 3 reference(s) in Google Scholar.)
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