product name Galunisertib (LY2157299)
Description: Galunisertib, also known as LY2157299, is a novel, potent, selective small molecule TGFβ receptor I (TβRI) inhibitor with IC50 of 56 nM in a cell-free assay. Galunisertib inhibited HCC cell migration on Laminin-5, Fibronectin, Vitronectin, Fibrinogen and Collagen-I and de novo phosphorylation of pSMAD2. LY2157299 inhibited HCC migration and cell growth independently of the expression levels of TGF-βRII.
References: Cancer Res. 2011 Feb 1;71(3):955-63.
369.42
Formula
C22H19N5O
CAS No.
700874-72-2
Storage
-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility (In vitro)
DMSO: 74 mg/mL (200.3 mM)
Water: <1 mg/mL
Ethanol: <1 mg/mL
Solubility (In vivo)
2% DMSO+30% PEG 300+ddH2O: 5 mg/mL
Synonyms
other peoduct :
| In Vitro |
In vitro activity: LY2157299 potently inhibits the TGFβ receptor signaling. LY2157299 abolishes the TGFβ induced Smad2 phosphorylation in HUVEC cells. LY2157299 also shows dose dependent potentiation of VEGF or bFGF induced cell proliferation in HUVEC. LY2157299 also promotes VEGF induced HUVEC cell migration. LY2157299 potentiates angiogenesis in the in vitro VEGF-stimulated cord formation assay. Y2157299 inhibits TGF-β-mediated SMAD2 activation and hematopoietic suppression in primary hematopoietic stem cells in a dose-dependent manner. LY2157199 treatment stimulates hematopoiesis from primary MDS bone marrow specimens. In human glioblastoma (GBM) cells, LY2157299 treatment blocks signaling through the heteromeric TGFβ receptor complex to reduce levels of active, phosphorylated SMAD. Kinase Assay: Cell Assay: |
|---|---|
| In Vivo | Although anti-tumor activity has been observed in several pre-clinical models, LY2157299 fails to show significant in vivo angiogenic effects in the 4T1, Colo205, or A549 xenograft models. Administration of LY2157299 ameliorates anemia in a TGF-β overexpressing transgenic mouse model of bone marrow failure. Oral administration of LY2157299 at 75 mg/kg/day displays significant antitumor activity against both Calu6 and MX1 xenografts in mice. In vivo, LY2157299 induces angiogenesis and enhances VEGF and basic-fibroblast-growth-factor-induced angiogenesis in a Matrigel-plug assay, whereas adding an alpha5-integrin-neutralizing antibody to the Matrigel selectively inhibits this enhanced response. |
| Animal model | Nude mice implanted subcutaneously with Calu6 or MX1 cells |
| Formulation & Dosage | Dissolved in DMSO and diluted in saline; 75 mg/kg/day; oral gavage |
| References | Cancer Res. 2011 Feb 1;71(3):955-63. |
