Cmpd10357 to treat B-cell acute lymphoblastic leukemia.

Abstract

B-cell acute lymphoblastic leukemia (B-ALL) is the most common type of cancer found in children. Although the overall survival rates are now >80%, 15%-20% of pediatric patients relapse, with survival rates subsequently dropping to 5%-10%. Cmpd10357, 3-amino-5-arylamino-6-chloro-N- (diaminomethylene) pyrazine-2-carboximide, is a highly potent, cell-permeant compound recently shown to have cytotoxic effects on solid tumors, including human breast cancer and high-grade gliomas, independent of their proliferative status. Cmpd10357 demonstrated concentration-dependent cytotoxicity in two human B-ALL cell lines, JM1 and Reh, at half-maximal inhibitory concentrations (IC50) of 3.2 and 3.3 μM, respectively. Cmpd10357, at a dose of 5 mg/kg, significantly prolonged survival in our B-ALL xenograft mouse model, with a median survival time of 49.0 days compared with 45.5 days in the control group (p < 0.05). The cytotoxicity of Cmpd10357 demonstrated caspase-independent, nonapoptotic cancer cell demise associated with the nuclear translocation of apoptosis-inducing factor (AIF). The cytotoxicity of Cmpd10357 in B-ALL cells was inhibited by Necrostatin-1 but not by Necrosulfonamide. These studies suggest that an AIF-mediated, caspase-independent necrosis mechanism of Cmpd10357 in B-ALL could be used in combination with traditional apoptotic chemotherapeutic agents.

• Authors: Alex Q Lee, Hiroaki Konishi, Elizabeth Helmke, Masami Ijiri, Jan Michael A Lerot, Emma Hicks, Jeremy R Chien, Fredric A Gorin, Noriko Satake
• Journal: Experimental hematology (Exp Hematol) 2023 Mar-Apr Vol. 119-120 Pg. 8-13.e1 ISSN: 1873-2399 [Electronic] Netherlands
• PMID: 36621746 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural)
• Copyright: Copyright © 2023 ISEH -- Society for Hematology and Stem Cells. Published by Elsevier Inc. All rights reserved.

Chemical References

• Antineoplastic Agents
• Caspases

Topics

• Humans
• Mice
• Animals
• Child
• Apoptosis
• Antineoplastic Agents (pharmacology)
• Caspases (metabolism, pharmacology)
• Precursor B-Cell Lymphoblastic Leukemia-Lymphoma (drug therapy)
• Burkitt Lymphoma (drug therapy)
• Cell Line, Tumor