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CX-4945, CK2 (Casein Kinase 2) Inhibitor

CX-4945, CK2 (Casein Kinase 2) Inhibitor

$129.00
A potent, selective and bioavailable CK2 (Casein Kinase 2) Inhibitor.
Catalog No. Unit Price Qty
M60267-2s 2 mg solid $129.00

Details

Product Information
Molecular Weight: 349.77
Formula: C19H12ClN3O2
Purity: ≥98%
CAS#: 1009820-21-6
Solubility: DMSO up to 40 mM
Chemical Name: 5-((3-chlorophenyl)amino)benzo[c][2,6]naphthyridine-8-carboxylic acid
Storage: Powder: 4oC 1 year. DMSO: 4oC 3 month; -20oC 1 year.

Biological Activity:

CX-4945 (Silmitasertib) is a potent, selective and bioavailable CK2 (Casein Kinase 2) Inhibitor with IC50 of 1 nM. It only inhibits 7 of the 238 kinases by more than 90% at concentration of 0.5 μM, which is 500-fold selectivity over CK2. Although in cell-free systems CX-4945 inhibits FLT3, PIM1, and CDK1 with IC50 of 35 nM, 46 nM, and 56 nM, respectively, but it is inactive against FLT3, PIM1, and CDK1 in cell-based functional assays at 10 µM. CX-4945 exhibits a broad spectrum of antiproliferative activity, correlates with CK2α mRNA and protein levels but not the CK2α' catalytic subunit, the regulatory CK2β subunit, and the PI3K/Akt or PTEN mutational status. Combined inhibition of EGFR and CK2 augments the attenuation of PI3K-Akt-mTOR signaling and the killing of cancer cells. CX-4945 can potentiate senescence by blocking tumour progression in Ptenpc -/- mice. Now CX-4945 is in phase I/II clinical trials to treat cancer.

How to Use:

In vitro: CX-4945 was used at 1 µM final concentration in various in vitro assays.
In vivo: Oral administration of CX-4945 at 25 mg/kg or 75 mg/kg twice daily displays potent antitumor activity in the BT-474 model, with TGI of 88% and 97%, respectively. In PC3 xenograft model, administration of CX-4945 at 25 mg/kg, 50 mg/kg, or 75 mg/kg causes tumor growth inhibition with TGI of 19%, 40%, and 86%, respectively.

Reference:

  • 1. Siddiqui-Jain A, et al. CX-4945, an orally bioavailable selective inhibitor of protein kinase CK2, inhibits prosurvival and angiogenic signaling and exhibits antitumor efficacy.(2010) Cancer Res. 70(24):10288-98. 
  • 2. Pierre F, et al. Discovery and SAR of 5-(3-chlorophenylamino)benzo[c][2,6]naphthyridine-8-carboxylic acid (CX-4945), the first clinical stage inhibitor of protein kinase CK2 for the treatment of cancer. (2011) J Med Chem. 54(2):635-54. 
  • 3. Siddiqui-Jain A, et al. CK2 inhibitor CX-4945 suppresses DNA repair response triggered by DNA-targeted anticancer drugs and augments efficacy: mechanistic rationale for drug combination therapy. (2012) Mol Cancer Ther. 11(4):994-1005. 
  • 4. Buontempo F, et al. Cytotoxic activity of the casein kinase 2 inhibitor CX-4945 against T-cell acute lymphoblastic leukemia: targeting the unfolded protein response signaling. (2014) Leukemia. 28(3):543-53. 
  • 5. Kalathur M, et al. A chemogenomic screening identifies CK2 as a target for pro-senescence therapy in PTEN-deficient tumours. (2015) Nat Commun. 6:7227



Products are for research use only. Not for human use. 

Description

Details

Product Information
Molecular Weight: 349.77
Formula: C19H12ClN3O2
Purity: ≥98%
CAS#: 1009820-21-6
Solubility: DMSO up to 40 mM
Chemical Name: 5-((3-chlorophenyl)amino)benzo[c][2,6]naphthyridine-8-carboxylic acid
Storage: Powder: 4oC 1 year. DMSO: 4oC 3 month; -20oC 1 year.

Biological Activity:

CX-4945 (Silmitasertib) is a potent, selective and bioavailable CK2 (Casein Kinase 2) Inhibitor with IC50 of 1 nM. It only inhibits 7 of the 238 kinases by more than 90% at concentration of 0.5 μM, which is 500-fold selectivity over CK2. Although in cell-free systems CX-4945 inhibits FLT3, PIM1, and CDK1 with IC50 of 35 nM, 46 nM, and 56 nM, respectively, but it is inactive against FLT3, PIM1, and CDK1 in cell-based functional assays at 10 µM. CX-4945 exhibits a broad spectrum of antiproliferative activity, correlates with CK2α mRNA and protein levels but not the CK2α' catalytic subunit, the regulatory CK2β subunit, and the PI3K/Akt or PTEN mutational status. Combined inhibition of EGFR and CK2 augments the attenuation of PI3K-Akt-mTOR signaling and the killing of cancer cells. CX-4945 can potentiate senescence by blocking tumour progression in Ptenpc -/- mice. Now CX-4945 is in phase I/II clinical trials to treat cancer.

How to Use:

In vitro: CX-4945 was used at 1 µM final concentration in various in vitro assays.
In vivo: Oral administration of CX-4945 at 25 mg/kg or 75 mg/kg twice daily displays potent antitumor activity in the BT-474 model, with TGI of 88% and 97%, respectively. In PC3 xenograft model, administration of CX-4945 at 25 mg/kg, 50 mg/kg, or 75 mg/kg causes tumor growth inhibition with TGI of 19%, 40%, and 86%, respectively.

Reference:

  • 1. Siddiqui-Jain A, et al. CX-4945, an orally bioavailable selective inhibitor of protein kinase CK2, inhibits prosurvival and angiogenic signaling and exhibits antitumor efficacy.(2010) Cancer Res. 70(24):10288-98. 
  • 2. Pierre F, et al. Discovery and SAR of 5-(3-chlorophenylamino)benzo[c][2,6]naphthyridine-8-carboxylic acid (CX-4945), the first clinical stage inhibitor of protein kinase CK2 for the treatment of cancer. (2011) J Med Chem. 54(2):635-54. 
  • 3. Siddiqui-Jain A, et al. CK2 inhibitor CX-4945 suppresses DNA repair response triggered by DNA-targeted anticancer drugs and augments efficacy: mechanistic rationale for drug combination therapy. (2012) Mol Cancer Ther. 11(4):994-1005. 
  • 4. Buontempo F, et al. Cytotoxic activity of the casein kinase 2 inhibitor CX-4945 against T-cell acute lymphoblastic leukemia: targeting the unfolded protein response signaling. (2014) Leukemia. 28(3):543-53. 
  • 5. Kalathur M, et al. A chemogenomic screening identifies CK2 as a target for pro-senescence therapy in PTEN-deficient tumours. (2015) Nat Commun. 6:7227



Products are for research use only. Not for human use. 

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