| FLLL32STAT3 inhibitor |
Sample solution is provided at 25 µL, 10mM.
Nature.2017 Jan 19;541(7637):417-420.
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- Purity = 98.00%
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| Cas No. | 1226895-15-3 | SDF | Download SDF |
| Chemical Name | (2E,2"E)-1,1"-(cyclohexane-1,1-diyl)bis(3-(3,4-dimethoxyphenyl)prop-2-en-1-one) | ||
| Canonical SMILES | COC1=C(OC)C=C(/C([H])=C([H])/C(C2(C(/C([H])=C([H])/C3=CC(OC)=C(OC)C=C3)=O)CCCCC2)=O)C=C1 | ||
| Formula | C28H32O6 | M.Wt | 464.55 |
| Solubility | Soluble in DMSO | Storage | Store at -20°C |
| Physical Appearance | A crystalline solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
FLLL32 is a small molecule analog of curcumin. It can inhibit signal transducer and activator of transcription-3 (STAT3). In the pSTAT3-positive A375 cell line, FLLL32 resulted in pro-apoptotic effects with an IC50 value of 1.3 μM at 48 hours [1].
Activation of STAT3 in melanoma tumors is related to poor prognosis. STAT3 can promote angiogenesis and cell proliferation, drive invasion and metastasis, and inhibit apoptosis [1].
In multiple human melanoma cell lines, after a 24 hour treatment with FLLL32, the STAT3 phosphorylation at Tyr705 but not at Tyr727 was inhibited. In a prior in vitro cell-free assay, FLLL32 was found to inhibit the activity of Jak2 kinase. But in the experiment with multiple human melanoma cell line, no appreciable alteration in the phosphorylation of Jak2, even when the concentration of FLLL32 was 8 μM, was observed. This meant that FLLL32 likely directly acted against the STAT3 protein. FLLL32 at concentrations ranged from 2-4 μM for only 4 hours reduced pSTAT3 and induce cell death [1].
In an s.c. model of B16F10 melanoma in C57BL/6 mice, compared to the treatment with DMSO to the same animals, daily i.p. administration of FLLL-32 at concentrations of 25 mg/kg and 50 mg/kg significantly delayed tumor growth (p<0.001)>
References: [1]. Bill MA, Fuchs JR, Li C, et al. The small molecule curcumin analog FLLL32 induces apoptosis in melanoma cells via STAT3 inhibition and retains the cellular response to cytokines with anti-tumor activity. Molecular cancer, 2010, 9(1): 165.[2]. Lesinski G, Bill M, Li C, et al. Abstract# 856: The small molecule curcumin analog FLLL-32 induces apoptosis in human melanoma cells via STAT3 inhibition and elicits in vivo anti-tumor activity. Cancer Research, 2009, 69(9 Supplement): 856-856.
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培养皿上的细菌是一个月前接种的，培养基成分没有变化
如题，WB中，脱脂牛奶封闭时，忘记使用脱色摇床摇晃，对封闭效果影响大不大？有没有什么补救办法？延长封闭时间还是怎么办？急等，谢谢！！！！
1.传质。就是底物或代谢产物更好在体系内转移和发挥作用。
2.溶氧。在好氧培养过程中，空气是滤过开放的，所以通过摇到可以让更多空气中氧气溶解于发酵液中。
3.体系均一。有便于对不同参数的取样测定。
