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Blocking Autophagy enhanced Leukemia Cell Death Induced by Recombinant Human Arginase

Overview
Journal Tumour Biol
Publisher Sage Publications
Specialty Oncology
Date 2015 Dec 9
PMID 26643895
Citations 12
Authors
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Abstract

Recombinant human arginase (rhArg) is an arginine-degrading enzyme that has been evaluated as effective therapeutics for varieties of malignant tumors and is in clinical trials for hepatocellular carcinoma (HCC) treatment nowadays. Our previous studies have reported that rhArg could induce autophagy and apoptosis in lymphoma cells and inhibiting autophagy could enhance the efficacy of rhArg on lymphoma. However, whether rhArg could induce autophagy and what roles autophagy plays in leukemia cells are unclear. In this study, we demonstrated that rhArg treatment could lead to the formation of autophagosomes and the upregulation of microtubule-associated protein light chain 3 II (LC3-II) in human promyelocytic leukemia HL-60 cells and human acute T cell leukemia Jurkat cells. Furthermore, inhibiting autophagy using 3-methyladenine (3-MA) or chloroquine (CQ) could significantly enhance rhArg-induced cell growth inhibition and apoptosis. Taken together, these findings indicated that rhArg induced autophagy in leukemia cells and inhibiting autophagy enhanced anti-leukemia effect of rhArg, which might encourage the treatment of leukemia by targeting arginine depletion and autophagy in clinics.

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References
1.
Mussai F, Egan S, Higginbotham-Jones J, Perry T, Beggs A, Odintsova E . Arginine dependence of acute myeloid leukemia blast proliferation: a novel therapeutic target. Blood. 2015; 125(15):2386-96. PMC: 4416943. DOI: 10.1182/blood-2014-09-600643. View

2.
Wan G, Xie W, Liu Z, Xu W, Lao Y, Huang N . Hypoxia-induced MIR155 is a potent autophagy inducer by targeting multiple players in the MTOR pathway. Autophagy. 2013; 10(1):70-9. PMC: 4389881. DOI: 10.4161/auto.26534. View

3.
Vogel R, Coughlin K, Scotti A, Iizuka Y, Anchoori R, Roden R . Simultaneous inhibition of deubiquitinating enzymes (DUBs) and autophagy synergistically kills breast cancer cells. Oncotarget. 2015; 6(6):4159-70. PMC: 4414179. DOI: 10.18632/oncotarget.2904. View

4.
Qiu F, Chen Y, Liu X, Chu C, Shen L, Xu J . Arginine starvation impairs mitochondrial respiratory function in ASS1-deficient breast cancer cells. Sci Signal. 2014; 7(319):ra31. PMC: 4229039. DOI: 10.1126/scisignal.2004761. View

5.
Young C, Sinadinos A, Lefebvre A, Chan P, Arkle S, Vaudry D . A novel mechanism of autophagic cell death in dystrophic muscle regulated by P2RX7 receptor large-pore formation and HSP90. Autophagy. 2015; 11(1):113-30. PMC: 4502824. DOI: 10.4161/15548627.2014.994402. View