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Matrix protein of vesicular stomatitis virus targets the mitochondria, reprograms glucose metabolism,and sensitizes to 2-deoxyglucose in glioblastoma

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机构: [1]Department of Abdominal Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated CancerHospital of University of Electronic Science and Technology of China, Chengdu, China [2]Department of Oncology, LuXian People’s Hospital, Luzhou, China [3]Division of Abdominal Tumor Multimodality Treatment, Department of Medical Oncology, West China Hospital, Cancer Center, Sichuan University, Chengdu, China
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关键词: VSV matrix protein deoxyglucose glycolysis adenosine triphosphate autophagy

摘要:
A potential therapeutic approach for cancer treatment is target oxidative phosphorylation and glycolysis simultaneously. The matrix protein of vesicular stomatitis virus (VSV MP) can target the surface of mitochondria, causing morphological changes that may be associated with mitochondrial dysfunction and oxidative phosphorylation inhibition. Previous research has shown that mitochondrial abnormalities can direct glucose metabolism towards glycolysis. Thus, after treatment with VSV MP, glycolysis inhibition is necessary to completely block glucose metabolism and eradicate cancer. Here, to inhibit glycolysis, the 2-deoxy-D-glucose (2-DG), a synthetic glucose analog, was used to combine with VSV MP to treat cancer. This study aims to determine how VSV MP effects the glucose bioenergetic metabolism of cancer cells and to evaluate the synergistic effect of 2-DG when combined with VSV. Our results indicated that in U87 and C6 glioblastoma cell lines, VSV MP caused mitochondrial membrane potential loss, cytochrome c release, and glucose bioenergetics metabolism reprogramming. When combined with 2-DG, VSV MP synergistically aggravated cell viability, apoptosis and G2/M phase arrest. Meanwhile, the combination therapy exacerbated ATP depletion, activated AMPK, and inhibited mTOR signaling pathways. In addition, 2-DG treatment alone induced autophagy in glioblastoma cells, however, VSV MP inhibited the autophagy induced by 2-DG in combined treatment, and finally contributed to the enhanced cytotoxic effect of the combination strategy in U87 and C6 cancer cells. In the orthotopic U87 glioblastoma model and subcutaneous C6 glioblastoma model, the combined treatment led to significant tumor regression and prolonged survival. A potent therapeutic approach for treating glioblastoma may be found in the combination of VSV MP and glycolytic inhibitors.

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出版当年[2023]版:
大类 | 3 区 医学
小类 | 2 区 生物工程与应用微生物 3 区 遗传学 3 区 医学:研究与实验
最新[2023]版:
大类 | 3 区 医学
小类 | 2 区 生物工程与应用微生物 3 区 遗传学 3 区 医学:研究与实验
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出版当年[2023]版:
Q1 GENETICS & HEREDITY Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Q2 MEDICINE, RESEARCH & EXPERIMENTAL
最新[2023]版:
Q1 GENETICS & HEREDITY Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Q2 MEDICINE, RESEARCH & EXPERIMENTAL

影响因子: 最新[2023版] 最新五年平均 出版当年[2023版] 出版当年五年平均 出版前一年[2023版]

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第一作者机构: [1]Department of Abdominal Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated CancerHospital of University of Electronic Science and Technology of China, Chengdu, China
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通讯机构: [1]Department of Abdominal Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated CancerHospital of University of Electronic Science and Technology of China, Chengdu, China [3]Division of Abdominal Tumor Multimodality Treatment, Department of Medical Oncology, West China Hospital, Cancer Center, Sichuan University, Chengdu, China [*1]Division of Abdominal Tumor Multimodality Treatment, Department of Medical Oncology, West China Hospital, Cancer Center, Sichuan University No. 37, Guo Xue Xiang, Chengdu, Sichuan 610041, China [*2]Department of Abdominal Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
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