LF3

Catalog No.S8474

For research use only.

LF3 is a specific inhibitor of canonical Wnt signaling by disrupting the interaction between β-catenin and TCF4 with an IC50 less than 2 μM.

LF3 Chemical Structure

CAS No. 664969-54-4

Selleck's LF3 has been cited by 9 Publications

Purity & Quality Control

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Biological Activity

Description LF3 is a specific inhibitor of canonical Wnt signaling by disrupting the interaction between β-catenin and TCF4 with an IC50 less than 2 μM.
Targets
β-catenin/Tcf4 [1]
(Cell-free assay)
1.65 μM
In vitro

LF3 does not cause cell death or interfere with cadherin-mediated cell-cell adhesion. The self-renewal capacity of cancer stem cells is blocked by LF3 in concentration-dependent manners, as examined by sphere formation of colon and head and neck cancer stem cells under nonadherent conditions. LF3 inhibits Wnt/β-catenin signaling, but does not interfere with E-cadherin/β-catenin-mediated cell-cell adhesion. LF3 blocks the expression of a series of Wnt target genes in Wnt-addicted colon cancer cells. It inhibits proliferation of Wnt-addicted colon cancer cells through induction of cell-cycle arrest and also inhibits self-renewal capacity of CSCs[1].

In vivo LF3 reduces tumor growth and induces differentiation in a mouse xenograft model of colon cancer while exhibiting no significant toxicity for mice and does not disturb the normal histology of the gut of mice[1].

Protocol (from reference)

Cell Research:[1]
  • Cell lines: The cell lines HCT116, HCT15, HT29, SW480, SW620, LS174T, SW48, MCF7, HeLa, HEK293, and MDCK 
  • Concentrations: 3.3-60 μmol/L
  • Incubation Time: 24 h
  • Method: β-catenin is immunoprecipitated from protein extracts of the cells that are incubated with LF3 at increasing concentrations, and reduced TCF4 and LEF1 bound to β-catenin are shown by Western blotting.
Animal Research:[1]
  • Animal Models: NOD/SCID mice
  • Dosages: 50 mg/kg
  • Administration: i.v.

Solubility (25°C)

In vitro

Chemical Information

Molecular Weight 416.56
Formula

C20H24N4O2S2

CAS No. 664969-54-4
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles C1CN(CCN1CC=CC2=CC=CC=C2)C(=S)NC3=CC=C(C=C3)S(=O)(=O)N

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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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