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Synchronous Interference of Dual Metabolic Pathways Mediated by H2S Gas/GOx for Augmenting Tumor Microwave Thermal Therapy

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机构: [1]Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen Sci & Technol, Lab Controllable Preparat & Applicat Nanomat, Beijing 100190, Peoples R China [2]Jinan Univ, Guangdong Prov Gen Hosp 2, Guangzhou 510310, Peoples R China [3]Sichuan Univ, Coll Biomed Engn, Chengdu 610065, Peoples R China
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关键词: glycolysis OXPHOS dual metabolic pathways synchronous interference microwave thermal therapy

摘要:
Sublethal tumor cells have an urgent need for energy, making it common for them to switch metabolic phenotypes between glycolysis and oxidative phosphorylation (OXPHOS) for compensatory energy supply; thus, the synchronous interference of dual metabolic pathways for limiting energy level is essential in inhibiting sublethal tumor growth. Herein, a multifunctional nanoplatform of Co-MOF-loaded anethole trithione (ADT) and myristyl alcohol (MA), modified with GOx and hyaluronic acid (HA) was developed, namely, CAMGH. It could synchronously interfere with dual metabolic pathways including glycolysis and OXPHOS to restrict the adenosine triphosphate (ATP) supply, achieving the inhibition to sublethal tumors after microwave (MW) thermal therapy. Under low-power MW irradiation, CAMGH induced certain tumor thermal damage while ensuring the safety of the surrounding normal tissues. The loaded GOx consumed glucose in tumors, undoubtedly blocking the main energy supply pathway, the glycolytic pathway. Then, H2O2 generated from GOx reacted with Co2+ to produce cytotoxic <middle dot>OH, combining with the released H2S from ADT to co-obstruct OXPHOS and then synergy with the above glycolysis blocking for a more effective ATP inhibition. The powerful depletion of ATP caused significant suppression of damage resistance protein upregulated after thermal stimulation, i.e., HSP90, and then the activation of caspase-3, achieving the simultaneous reversal of heat resistance and apoptosis resistance. Altogether, the CAMGH-based synchronous interference of dual metabolic pathways shows the potential to break down tumor self-repair, presenting an alternative strategy to enhance the therapeutic effect of tumor MW thermal therapy.

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大类 | 2 区 材料科学
小类 | 2 区 材料科学:综合 2 区 纳米科技
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Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Q1 NANOSCIENCE & NANOTECHNOLOGY

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第一作者机构: [1]Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen Sci & Technol, Lab Controllable Preparat & Applicat Nanomat, Beijing 100190, Peoples R China [3]Sichuan Univ, Coll Biomed Engn, Chengdu 610065, Peoples R China
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