FLLL32

FLLL32 is a potent JAK2/STAT3 inhibitor with IC50 of <5 μM. FLLL32 inhibits the induction of STAT3 phosphorylation by IFNα and IL-6 in breast cancer cells.

FLLL32 Chemical Structure

FLLL32 Chemical Structure

CAS No. 1226895-15-3

Purity & Quality Control

Batch: S725901 DMSO]92 mg/mL]false]Ethanol]25 mg/mL]false]Water]Insoluble]false Purity: 99.79%
99.79

FLLL32 Related Products

Signaling Pathway

Biological Activity

Description FLLL32 is a potent JAK2/STAT3 inhibitor with IC50 of <5 μM. FLLL32 inhibits the induction of STAT3 phosphorylation by IFNα and IL-6 in breast cancer cells.
Targets
JAK2 [1]
<5 μM
In vitro
In vitro In MDA-MB-231 breast and PANC-1 pancreatic cancer cells, FLLL32 downregulates STAT3 phosphorylation and DNA-binding activity. In MDA-MB-231 cells, FLLL32 inhibit the formation of colonies and cell invasion. [1] In human multiple myeloma, glioblastoma, liver cancer, and colorectal cancer cell lines, FLLL32 also leads to the inhibition of cell proliferation and the induction of caspase-3 and PARP cleavages. [2]
Kinase Assay JAK2 and other human kinase activity assays
JAK2 kinase activity was assessed with the HTScan JAK2 Kinase Assay Kit per manufacturer's protocol. The possible effects of FLLL32 on the other 10 purified human protein kinases were determined by using a Kinase Profiler Assay.
Cell Research Cell lines MDA-MB-231 cell line
Concentrations ~5 μM
Incubation Time 72 hours
Method Cells are seeded in 96-well plates (3,000 per well) in triplicate and then treated with 0.5 to 5 μM of FLLL31 or FLLL32 or with 0.5 to 30 μM of curcumin for 72 h. MTT (25 μL) is added to each sample and incubated for 3.5 h. Then, 100 μL of N,N-dimethylformamide solubilization solution are added to each well. The absorbance at 450 nm is read the following day. IC50 are determined using Sigma Plot 9.0 software.
In Vivo
In vivo In MDA-MB-231 xenografted mice, FLLL32 (50 mg/kg, i.p.) significantly reduces tumor burdens. [1] In mouse xenografts with OS-33 osteosarcoma cells, FLLL32 (50 mg/kg, i.p.) also inhibits tumor growth by targeting STAT3. [3]
Animal Research Animal Models MDA-MB-231 xenografted mice
Dosages 50 mg/kg, daily
Administration i.p.

Chemical Information & Solubility

Molecular Weight 464.55 Formula

C28H32O6

CAS No. 1226895-15-3 SDF Download FLLL32 SDF
Smiles COC1=C(C=C(C=C1)C=CC(=O)C2(CCCCC2)C(=O)C=CC3=CC(=C(C=C3)OC)OC)OC
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 92 mg/mL ( (198.04 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 25 mg/mL

Water : Insoluble


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In vivo
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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.

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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