The journal of gene medicine · 2016
Anguilla japonica lectin 1 delivery through adenovirus vector induces apoptotic cancer cell death through interaction with PRMT5.
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Li Gongchu, Gao Yajun, Cui Lianzhen, Wu Liqin, Yang Xinyan, Chen Jing
Аннотация
BACKGROUND: Our previous studies have demonstrated that, through adenovirus mediated gene delivery, various exogenously expressed lectins elicited cytotoxicity to cancer cells, utilizing protein arginine methyltransferase 5 (PRMT5) as a common binding target.
METHODS: In the present study, a FLAG tagged Anguilla japonica lectin 1 (AJL1) expression cassette was genetically harbored in a replication-defective adenovirus genome, forming Ad.FLAG-AJL1. The exogenous AJL1-induced cytotoxicity and the underlying mechanisms were analyzed.
RESULTS: The exogenous AJL1 suppressed the proliferation of a variety of human cancer cells by inducing apoptosis. Caspase 9, Bcl-2, X-linked inhibitor of apoptosis protein, mitogen-activated protein kinase kinase 1/2-extracellular signal-regulated kinase and p38 mitogen-activated protein kinase were found to be responsible for the exogenous AJL1-induced cytotoxicity. AJL1 was further suggested to regulate PRMT5-E2F-1 pathway, a pathway shared by previously reported marine lectins Dicentrarchus labrax fucose binding lectin and Strongylocentrotus purpuratus rhamnose binding lectin. A localization study revealed that exogenous AJL1 widely distributed in the cell membrane and cytoplasm.
CONCLUSIONS: The results of the present study suggest that the PRMT5-E2F-1 pathway may act as a common target for exogenous lectins including AJL1, and the cellular response to exogenous AJL1 may suggest a novel agent for cancer gene therapy. Copyright © 2016 John Wiley & Sons, Ltd.
METHODS: In the present study, a FLAG tagged Anguilla japonica lectin 1 (AJL1) expression cassette was genetically harbored in a replication-defective adenovirus genome, forming Ad.FLAG-AJL1. The exogenous AJL1-induced cytotoxicity and the underlying mechanisms were analyzed.
RESULTS: The exogenous AJL1 suppressed the proliferation of a variety of human cancer cells by inducing apoptosis. Caspase 9, Bcl-2, X-linked inhibitor of apoptosis protein, mitogen-activated protein kinase kinase 1/2-extracellular signal-regulated kinase and p38 mitogen-activated protein kinase were found to be responsible for the exogenous AJL1-induced cytotoxicity. AJL1 was further suggested to regulate PRMT5-E2F-1 pathway, a pathway shared by previously reported marine lectins Dicentrarchus labrax fucose binding lectin and Strongylocentrotus purpuratus rhamnose binding lectin. A localization study revealed that exogenous AJL1 widely distributed in the cell membrane and cytoplasm.
CONCLUSIONS: The results of the present study suggest that the PRMT5-E2F-1 pathway may act as a common target for exogenous lectins including AJL1, and the cellular response to exogenous AJL1 may suggest a novel agent for cancer gene therapy. Copyright © 2016 John Wiley & Sons, Ltd.