基本信息

产品描述

G007-LK是一种有效的选择性tankyrase抑制剂，对TNKS1/2的IC50分别为46 nM 和 25 nM。

靶点（IC50 & Targe）

PARP

体外研究

G007-LK reduces Wnt/β-catenin signaling by preventing poly(ADP-ribosyl)ation-dependent AXIN degradation, thereby promoting β-catenin destabilization. G007-LK completely blocks ligand-driven Wnt/β-catenin signaling in cell culture and display approximately 50% inhibition of APC mutation–driven signaling in most CRC cell lines. G007-LK (0.2 μM) reduces the number of COLO-320DM cells in mitosis from 24% to 12% and decreases HCT-15 cells in S-phase from 28% to 18%. G007-LK suppresses colony formation in CRC lines COLO-320DM and SW403. G007-LK suppresses organoids growth with IC50 of 80 nM. [2]

体内研究

G007-LK exhibits antitumor efficacy in xenograft and genetically engineered CRC models. In the COLO-320DM model, G007-LK reduces tankyrases 1 and tankyrases 2 protein levels, stabilizes AXIN1 and AXIN2, and decreases β-catenin level. Wnt/β-catenin signaling is clearly inhibited in a dose-dependent manner in the efficacy study tumors as indicated by reduced expression of β-catenin–activated genes NKD1, APCDD1, and TNFRSF19 (TROY), as well as increased expression of β-catenin–repressed gene CLIC3. G007-LK treatment increases expression of KRT20 and TM4SF4 in COLO-320DM tumors. G007-LK (20 mg/kg twice daily) achieves 61% tumor growth inhibition. G007-LK reduces Wnt/β-catenin signaling and cell proliferation in normal intestine. [2]

激酶实验

TNKS1 and TNKS2 in vitro biochemical assays:

G007-LK inhibitory activity at various doses (duplicates) is tested twice against TNKS1, TNSK2 Chemiluminescent Assay Kits, and the luminescence is measured on a GloMax Luminometer.

细胞实验

Cell lines: APC-mutant CRC cell lines COLO-320DM

Concentrations: ～0.2 μM

Incubation Time: 7 to 13 days

Method: For colony formation assays, cells are seeded at 500 cells/well in 2 mL of medium. Cell line in triplicate wells is treated with either 0.06% DMSO or compound in 0.06% DMSO and incubated for up to 17 days or until colonies became sufficiently large to quantify, changing medium and compound every third day. Colonies are stained by adding 200 μL of 12 mM 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide to each well for 1 h, and colony numbers are quantitated with a GelCount scanner at 1200 dpi resolution.

(Only for Reference)

动物实验

Animal Models: Human APC –mutant CRC xenograft COLO-320DM

Formulation: 15% DMSO, 17.5% Cremophor EL, 8.75% ethanol, 8.75% Miglyol 810N, 50% PBS

Dosages: 20 mg/kg

(Only for Reference)

参考文献

[1] Voronkov A, et al. J Med Chem, 2013, 56(7), 3012-3023.

[2] Lau T, et al. Cancer Res, 2013, 73(10), 3132-3144.

安全信息

图形或危害标志
提示语	Warning
危险说明	H302 H410
防范说明	P264 P270 P273 P301+P312 P330 P391 P501
UN号码	3077
危险分类	9
包装等级	III

产品说明

一般描述

A cell-permeable, triazolyl-vinyl-oxadiazole compound that targets adenosine site of the NAD⁺ pocket in the TNKS PARP domain and acts as a potent and highly selective tankyrase inhibitor (IC₅₀ = 33 and 26 nM, respectively, against TNKS1/PARP5a/ARTD5 and TNKS2/PARP5b/ARTD6 in auto-PARsylation assays), effectively inhibiting murine Wnt3a-induced reporter activity in human HEK293 and murine 10T1/2 cultures (IC_max ~300 and 600 nM, respectively). Shown to display little or no inhibitory potency (IC₅₀ >10 µM) toward 7 other PARP enzymes (PARP1, 2, 3, 6, 7,10,11), 90 kinases, 16 phosphatases, and 75 GPCRs (IC₅₀ >10 µM). Shown to inhibit two CRC lines, COLO-320DM & SW403, colony formation in vitro (200 nM) and tumor expansion in mice in vivo (20 mg/kg via daily i.p.), although G007-LK toxicity is observed at higher dosages (≥30 mg/kg/12 h or 60 mg/kg/d via i.p.).

Please note that the molecular weight for this compound is batch-specific due to variable water content.
A cell-permeable, triazolyl-vinyl-oxadiazole compound that targets adenosine site of the NAD⁺ pocket in the TNKS PARP domain and acts as a potent and highly selective tankyrase inhibitor (IC₅₀ = 33 and 26 nM, respectively, in TNKS1/PARP5a/ARTD5 and TNKS2/PARP5b/ARTD6 auto-PARsylation assays), effectively inhibiting murine Wnt3a-induced reporter activity in human HEK293 and murine 10T1/2 cultures (IC_max ~300 and 600 nM, respectively). In addition to being more selective over PARP1/2 (IC₅₀ >10 µM vs 116 nM/47 nM with XAV939) than the nicotinamide site-targeting XAV939 (Cat. No. 575545), G007-LK is also shown to display little or no inhibitory potency (IC₅₀ >10 µM) toward 5 other PARP enzymes (PARP3, 6, 7,10,11), 90 kinases, 16 phosphatases, and 75 GPCRs (IC₅₀ >10 µM). Wnt signaling inhibition upon G007-LK treatment in 11 APC (Adenomatous polyposis coli/deleted in polyposis 2.5/DP2.5) mutatant CRC (colorectal cancer) lines ranges from no effect to varying degrees of partial blockages that do not correlate with the observed CRC colony formation inhibitions.Two CRC lines, COLO-320DM & SW403, whose colony formation are affected by G007-LK in vitro (by 70% and 27%, respectively, at 200 nM in 7 to 13 d) are also inhibited by G007-LK for their tumor expansion in mice in vivo (by 47% and 42%, respectively, on d21; 20 mg/kg per daily i.p.), while G007-LK toxicity is observed at high dosages in mice (≥30 mg/kg/12 h or 60 mg/kg/d via i.p.) due to small intestine damage as a result of on-target wnt signaling inhibition in normal tissue. Exhibits favorable pharmacokinetic properties in mice when administered via i.p. ( Plasma t_1/2 ≥2.73 h; C_max ≥2.358 µg/mL; 5 mg/kg) or p.o. ( Plasma t_1/2 ≥2.8 h; C_max ≥871 ng/mL; 5 mg/kg).

生化/生理作用

Cell permeable: yes
Primary Target
Tankyrase 1/2
Reversible: yes

包装

Packaged under inert gas

警告

Toxicity: Standard Handling (A)

重悬

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

其他说明

Lau, T., et al. 2013. Cancer Res.73, 3132.
Voronkov, A., et al. 2013. J. Med. Chem.56, 3012.

法律信息

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

基本信息

产品性质

安全信息