LY2157299
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
LY2157299 is a potent small-molecule antagonist that specifically inhibits Transforming Growth Factor-β receptor I (TβRI). LY2157299 is now under phase II clinical evaluation of its anti-carcinoma activity against hepatocellular carcinoma and glioblastoma1.
LY2157299 has been shown to inhibit β1-integrin activation and block the invasion and migration of hepatocellular cancer cells. In addition, multiple studies have revealed LY2157299 blocked the CTGF production and inhibited neoangiogenesis resulting suppression of hepatocellular carcinoma growth1.
LY2157299 has been reported to decrease phosphorylated Smad2 and Smad3 expression and inhibit the tumor growth in both human anaplastic carcinoma lung cell (Calu6) or human carcinoma breast cell (MX1) xenografted nude mice2.
References:
1. Giannelli G1, Villa E, Lahn M.Transforming Growth Factor-β as a Therapeutic Target in Hepatocellular Carcinoma. Cancer Res. 2014 Apr 1;74(7):1890-4. doi: 10.1158/0008-5472.CAN-14-0243. Epub 2014 Mar 17.
2. Bueno L1, de Alwis DP, Pitou C, Yingling J, Lahn M, Glatt S, Trocóniz IFSemi-mechanistic modelling of the tumour growth inhibitory effects of LY2157299, a new type I receptor TGF-beta kinase antagonist, in mice. Eur J Cancer. 2008 Jan;44(1):142-50.
- 1. Talha Ijaz. "Fibroblasts: Key Cells in Inflammation and Fibrosis." University of Texas Medical Branch.May, 2018.
- 2. Ijaz T, Jamaluddin M, et al. "Coordinate activities of BRD4 and CDK9 in the transcriptional elongation complex are required for TGFβ-induced Nox4 expression and myofibroblast transdifferentiation." Cell Death Dis. 2017 Feb 9;8(2):e2606. PMID:28182006
| Storage | Store at -20°C |
| M.Wt | 369.42 |
| Cas No. | 700874-72-2 |
| Formula | C22H19N5O |
| Synonyms | LY-2157299;LY 2157299 |
| Solubility | ≥18.45mg/mL in DMSO |
| Chemical Name | 4-[2-(6-methylpyridin-2-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-3-yl]quinoline-6-carboxamide |
| SDF | Download SDF |
| Canonical SMILES | CC1=CC=CC(=N1)C2=NN3CCCC3=C2C4=C5C=C(C=CC5=NC=C4)C(=O)N |
| Shipping Condition | Evaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request. |
| General tips | For obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months. |
| Cell experiment: [1] | |
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Cell lines |
HLE and HLF cells |
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Preparation method |
The solubility of this compound in DMSO is >10 mM. 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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Reaction Conditions |
100 nM, 16 hours |
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Applications |
HLE and HLF cells were allowed to migrate for 16 hours on fibronectin, vitronectin, laminin-5 and fibrinogen in the presence of increasing concentrations (1 nM, 10 nM and 100 nM) of LY2157299. LY2157299 significantly inhibited HLE and HLF migration on different ECM substrates. When testing the inhibition of Smad phosphorylation, two different HCC cell lines were pretreated for 16 hours with 100 nM of LY2157299 and then stimulated with 2 ng of TGF-β1 for 30 min. LY2157299 inhibited de novo phosphorylation of p-SMAD2 at the same efficiency in HLE and HLF after stimulation with TGF-β1. Besides that, increased expression of E-cadherin was observed in HLE and HLF cells after treatment for 48 hours. |
| Animal experiment: [2] | |
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Animal models |
Nude mice implanted with Calu6 or MX1 cells |
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Dosage form |
Oral administration, 75mg/kg, twice a day |
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Applications |
LY2157299 induced a 70% decrease in phosphorylated Smad (pSmad) for both types of cell lines. The time at which pSmad recovered 80% of baseline was approximately 6 h after administration. |
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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] Dituri F, Mazzocca A, Peidrò F J, et al. Differential inhibition of the TGF-β signaling pathway in HCC cells using the small molecule inhibitor LY2157299 and the D10 monoclonal antibody against TGF-β receptor type II. PloS one, 2013, 8(6): e67109. [2] Bueno L, de Alwis D P, Pitou C, et al. Semi-mechanistic modelling of the tumour growth inhibitory effects of LY2157299, a new type I receptor TGF-β kinase antagonist, in mice. European journal of cancer, 2008, 44(1): 142-150. |
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| Description | LY2157299 is a potent inhibitor of TGFβ receptor I (TβRI) with IC50 of 56 nM. | |||||
| Targets | TβRI | |||||
| IC50 | 56 nM | |||||
Quality Control & MSDS
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