Abstract
Advanced stage neuroblastoma is a very aggressive pediatric cancer with limited treatment options and a high mortality rate. Glycogen synthase kinase-3ß (GSK-3ß) is a potential therapeutic target in neuroblastoma. Using immunohistochemical staining, we observed positive GSK- 3ß expression in 67% of human neuroblastomas (34 of 51 cases). Chemically distinct GSK-3 inhibitors (AR-A014418, TDZD-8, and 9-ING-41) suppressed the growth of neuroblastoma cells, whereas 9-ING-41, a clinically relevant small-molecule GSK-3ß inhibitor with broad-spectrum preclinical antitumor activity, being the most potent. Inhibition of GSK-3 resulted in a decreased expression of the antiapoptotic molecule XIAP and an increase in neuroblastoma cell apoptosis. Mouse xenograft studies showed that the combination of clinically relevant doses of CPT-11 and 9-ING-41 led to greater antitumor effect than was observed with either agent alone. These data support the inclusion of patients with advanced neuroblastoma in clinical studies of 9-ING-41, especially in combination with CPT-11.
Original language | English (US) |
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Pages (from-to) | 717-724 |
Number of pages | 8 |
Journal | Anti-Cancer Drugs |
Volume | 29 |
Issue number | 8 |
DOIs | |
State | Published - Sep 1 2018 |
Funding
This work was supported by generous donations from the Little Heroes Foundation (M.J.H., A.P.M.) and by Cancer Center Support Grant 2 P30 CA060553-19 (A.P. M., A.U.) to the Robert H. Lurie Comprehensive Cancer Center of Northwestern University.
Keywords
- 9-ING-41
- CPT-11
- Chemoresistance
- Glycogen synthase kinase-3
- Glycogen synthase kinase-3ß
- Irinotecan
- Neuroblastoma
ASJC Scopus subject areas
- Oncology
- Pharmacology
- Pharmacology (medical)
- Cancer Research