Engineering Macrophage Exosome Disguised Biodegradable Nanoplatform for Enhanced Sonodynamic Therapy of Glioblastoma

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(15)

Published: Feb. 8, 2022

Sonodynamic therapy (SDT) exhibits high tissue penetration and negligible radiation damage to normal tissues, thus emerges as a promising cancer therapeutic modality for glioblastoma (GBM). However, the blood-brain barrier (BBB) hypoxic microenvironment greatly limit SDT efficiency. In this work, biodegradable nanoplatform (termed CSI) is fabricated by encapsulating catalase (CAT) into silica nanoparticles (CAT@SiO2 ) tumor hypoxia relief, then loaded with sonosensitizer indocyanine green (ICG). Inspired ability of macrophages cross BBB, CSI further coated AS1411 aptamer-modified macrophage exosomes form CSI@Ex-A, which possesses efficient BBB good cancer-cell-targeting capability. After cell endocytosis, highly expressed glutathione (GSH) triggeres biodegradation released CAT catalyzes hydrogen peroxide (H2 O2 produce relieve hypoxia. The GSH depletion self-supplying effectively enhances efficiency both in vitro vivo. addition, resulting CSI@Ex-A biocompatibility long circulation time. These findings demonstrate that may serve competent GBM therapy, potential clinical translation.

Language: Английский

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Fluorescent probes for the detection of disease-associated biomarkers

Science Bulletin, Journal Year: 2022, Volume and Issue: 67(8), P. 853 - 878

Published: Jan. 17, 2022

Language: Английский

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Nanotechnology for Boosting Cancer Immunotherapy and Remodeling Tumor Microenvironment: The Horizons in Cancer Treatment

ACS Nano, Journal Year: 2021, Volume and Issue: 15(8), P. 12567 - 12603

Published: Aug. 2, 2021

Immunotherapy that harnesses the human immune system to fight cancer has received widespread attention and become a mainstream strategy for treatment. Cancer immunotherapy not only eliminates primary tumors but also treats metastasis recurrence, representing major advantage over traditional treatments. Recently with development of nanotechnology, there exists much work applying nanomaterials on basis their excellent physiochemical properties, such as efficient tissue-specific delivery function, huge specific surface area, controllable chemistry. Consequently, nanotechnology holds significant potential in improving efficacy immunotherapy. Nanotechnology-based mainly manifests its inhibitory effect via two different approaches: one is produce an effective anti-tumor response during tumorigenesis, other enhance tumor defense ability by modulating suppression mechanism microenvironment. With success immunotherapy, understanding interaction between smart nanomedicine provided vigorous vitality This review highlights application, progress, prospect process immunoediting discusses several engineering methods improve efficiency

Language: Английский

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Synergistic Reinforcing of Immunogenic Cell Death and Transforming Tumor‐Associated Macrophages Via a Multifunctional Cascade Bioreactor for Optimizing Cancer Immunotherapy

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(51)

Published: Oct. 17, 2022

Immunogenic cell death (ICD) has aroused widespread attention because it can reconstruct a tumor microenvironment and activate antitumor immunity. This study proposes two-way enhancement of ICD based on CaO2 @CuS-MnO2 @HA (CCMH) nanocomposite to overcome the insufficient damage-associated molecular patterns (DAMPs) conventional ICD-inducers. The near-infrared (NIR) irradiation (1064 nm) CuS nanoparticles generates 1 O2 through photodynamic therapy (PDT) trigger ICD, also damages Ca2+ buffer function mitochondria. Additionally, react with H2 O produce large amount , which respectively lead enhanced PDT overload during mitochondrial damage, thereby triggering robust activation. Moreover, oxidative-damaged DNA, induced by released from cells, reprograms immunosuppressive transforming tumor-associated macrophages M1 subphenotype. shows that CCMH NIR-II elicit adequate DAMPs an active tumor-immune for both 4T1 CT26 models. Combining this method immune checkpoint blockade realize improved immunotherapy efficacy long-term protection effect body.

Language: Английский

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Emerging Sonodynamic Therapy‐Based Nanomedicines for Cancer Immunotherapy

Advanced Science, Journal Year: 2022, Volume and Issue: 10(2)

Published: Nov. 27, 2022

Cancer immunotherapy effect can be greatly enhanced by other methods to induce immunogenic cell death (ICD), which has profoundly affected as a highly efficient paradigm. However, these treatments have significant limitations, either causing damage of the immune system or limited superficial tumors. Sonodynamic therapy (SDT) ICD promote without affecting because its excellent spatiotemporal selectivity and low side effects. Nevertheless, SDT is still reactive oxygen species yield complex tumor microenvironment. Recently, some emerging SDT-based nanomedicines made numerous attractive encouraging achievements in field cancer due high immunotherapeutic efficiency. this cross-cutting research far from being widely explored huge professional barriers. Herein, characteristics microenvironment mechanisms are firstly systematically summarized. Subsequently, therapeutic mechanism fully summarized, advantages limitations discussed. The representative advances for further highlighted. Finally, application prospects challenges future clinical translation

Language: Английский

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Theranostic Fluorescent Probes

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(5), P. 2699 - 2804

Published: Feb. 29, 2024

The ability to gain spatiotemporal information, and in some cases achieve control, the context of drug delivery makes theranostic fluorescent probes an attractive intensely investigated research topic. This interest is reflected steep rise publications on topic that have appeared over past decade. Theranostic probes, their various incarnations, generally comprise a fluorophore linked masked drug, which released as result certain stimuli, with both intrinsic extrinsic stimuli being reported. release then signaled by emergence signal. Importantly, use appropriate fluorophores has enabled not only this emerging fluorescence marker for but also provided modalities useful photodynamic, photothermal, sonodynamic therapeutic applications. In review we highlight recent work particular focus are activated tumor microenvironments. We summarize efforts develop other applications, such neurodegenerative diseases antibacterials. celebrates diversity designs reported date, from discrete small-molecule systems nanomaterials. Our aim provide insights into potential clinical impact still-emerging direction.

Language: Английский

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A Cascade Nanozyme with Amplified Sonodynamic Therapeutic Effects through Comodulation of Hypoxia and Immunosuppression against Cancer

ACS Nano, Journal Year: 2021, Volume and Issue: 16(1), P. 485 - 501

Published: Dec. 28, 2021

The tumor microenvironment (TME) featured by immunosuppression and hypoxia is pivotal to cancer deterioration metastasis. Thus, regulating the TME improve cell ablation efficiency has received extensive interest in oncotherapy. However, reverse alleviate simultaneously are major challenges for effective therapy. Herein, a multifunctional platform based on Au nanoparticles carbon dots modified hollow black TiO2 nanosphere (HABT-C) with intrinsic cascade enzyme mimetic activities prepared reversing alleviating TME. HABT-C NPs possess triple-enzyme activity act as self-cascade nanozymes, which produce sufficient oxygen generate abundant ROS. theoretical analysis demonstrates that facilitates absorption of H2O O2, separation electron–holes, generation ROS, consequently amplifying sonodynamic therapy (SDT) efficiency. Specifically, exhibits favorable inhibition immunosuppressive mediator expression, along infiltrating immune effector cells into As result, can effectively kill via eliciting infiltration, hypoxia, improving SDT This nanozyme-based (HABT-C@HA) will provide strategy highly efficient against modulation

Language: Английский

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Harnessing Nanomaterials for Cancer Sonodynamic Immunotherapy

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(33)

Published: March 7, 2023

Abstract Immunotherapy has made remarkable strides in cancer therapy over the past decade. However, such emerging still suffers from low response rates and immune‐related adverse events. Various strategies have been developed to overcome these serious challenges. Therein, sonodynamic (SDT), as a non‐invasive treatment, received ever‐increasing attention especially treatment of deep‐seated tumors. Significantly, SDT can effectively induce immunogenic cell death trigger systemic anti‐tumor immune response, termed immunotherapy. The rapid development nanotechnology revolutionized effects with robust induction. As result, more innovative nanosonosensitizers synergistic modalities are established superior efficacy safe profile. In this review, recent advances immunotherapy summarized particular emphasis on how be explored harness for amplifying response. Moreover, current challenges field prospects its clinical translation also presented. It is anticipated that review provide rational guidance facilitate nanomaterials‐assisted immunotherapy, helping pave way next‐generation eventually achieve durable patients.

Language: Английский

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Metal-Phenolic Network-Enabled Lactic Acid Consumption Reverses Immunosuppressive Tumor Microenvironment for Sonodynamic Therapy

ACS Nano, Journal Year: 2021, Volume and Issue: 15(10), P. 16934 - 16945

Published: Oct. 18, 2021

Nanomedicine has revolutionized cancer therapeutic strategies but not completely changed the outcomes of tricky tumors that evolve a sophisticated immunosuppressive tumor microenvironment (TME) such as acidification. Here, metal-phenolic network-based nanocomplex embedded with lactate oxidase (LOX) and mitochondrial respiration inhibitor atovaquone (ATO) was constructed for TME remodeling sonodynamic therapy (SDT). In this nanocomplex, sonosensitizer chlorin e6-conjugated polyphenol derivative can induce generation lethal reactive oxygen species upon ultrasound irradiation. LOX served catalyst intracellular lactic acid exhaustion, ATO led to dysfunction decrease consumption. This reversed status by alleviating hypoxia acidic TME, achieving characteristic enhancement SDT inhibition proliferation metastasis.

Language: Английский

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GSH-Responsive Nanoprodrug to Inhibit Glycolysis and Alleviate Immunosuppression for Cancer Therapy

Nano Letters, Journal Year: 2021, Volume and Issue: 21(18), P. 7862 - 7869

Published: Sept. 8, 2021

Blocking energy metabolism of cancer cells and simultaneously stimulating the immune system to perform attack are significant for treatment. However, how potently deliver different drugs with these functions remains a challenge. Herein, we synthesized nanoprodrug formed by F127-coated drug dimer inhibit glycolysis alleviate immunosuppressive microenvironment. The was delicately constructed connect lonidamine (LND) NLG919 disulfide bond which can be cleaved excess GSH release two drugs. LND decrease expression hexokinase II destroy mitochondria restrain supply. reduce accumulation kynurenine number regulatory T cells, thus alleviating Notably, consumption increased intracellular oxidative stress triggered immunogenic cell death cells. This strategy offer more possibilities explore dimeric prodrugs synergistic therapy.

Language: Английский

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