SC144 is a first-in-class, orally active gp130 (IL6-beta) inhibitor. SC144 binds gp130, induces gp130 phosphorylation (S782) and deglycosylation, abrogates Stat3 phosphorylation and nuclear translocation, and further inhibits the expression of downstream target genes. SC144 shows potent inhibition of gp130 ligand-triggered signaling. SC144 induces apoptosis in human ovarian cancer cells.

Product information

CAS Number: 895158-95-9

Molecular Weight: 322.30

Formula: C16H11FN6O

Chemical Name: N'-{7-fluoropyrrolo[1, 2-a]quinoxalin-4-yl}pyrazine-2-carbohydrazide

Smiles: O=C(NNC1=NC2C=C(F)C=CC=2N2C=CC=C21)C1=CN=CC=N1

InChiKey: UEADAWQSJOWXBK-UHFFFAOYSA-N

InChi: InChI=1S/C16H11FN6O/c17-10-3-4-13-11(8-10)20-15(14-2-1-7-23(13)14)21-22-16(24)12-9-18-5-6-19-12/h1-9H,(H,20,21)(H,22,24)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 16.67 mg/mL (51.72 mM; Need ultrasonic)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

SC144 inhibits cell growth in a panel of human ovarian cancer cell lines with IC50s in a submicromolar range (IC50=OVCAR-8, OVCAR-5, OVCAR-3= 0.72, 0.49, 0.95 μM). The potency of SC144 toward NCI/ADR-RES (Paclitaxel- and Doxorubicin-resistant, IC50=0.43 μM) and HEY (Cisplatin-resistant, IC50=0.88 μM) suggests an ability to overcome drug resistance in ovarian cancer. SC144 (2 μM; 24 hours) causes significantly more apoptosis in OVCAR-8 and Caov-3 than normal kidney epithelial and normal endometrial cells. SC144 (0.5-2 μM; 0-6 hours) substantially increases the phosphorylation of gp130 (S782) in both OVCAR-8 and Caov-3 cells in a time- and dose-dependent manner. SC144 is cytotoxic to ovarian cancer cells via a mechanism involving the inhibition of gp130 activity, leading to the inactivation of Akt and Stat3 as well as the suppression of Stat3-regulated gene expression. As are result, SC144 treatment eventually causes cell-cycle arrest, anti-angiogenesis, and apoptosis.

In Vivo:

SC144 (10 mg/kg; i.p.; daily for 58 days) suppresses tumor growth in human ovariancancer xenografts. SC144 (100 mg/kg;p.o.; daily for 35 days) treatment shows the average tumor volume in mice 82% smaller than that in the control group.

References:

1. Xu S, et al. Discovery of a novel orally active small-molecule gp130 inhibitor for the treatment of ovarian cancer. Mol Cancer Ther. 2013 Jun;12(6):937-49.

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