Hypoxia-responsive ionizable liposome delivery siRNA for glioma therapy

Liu, Hongmei; Zhang, Yafei; Xie, Yandong; Cai, Yifan; Baiyang, Li; Li, Wenwen; Zeng, Lingyu; Li, Yuling; Yu, Rutong

doi:10.2147/ijn.s125286

Cited by 74 publications

(53 citation statements)

References 46 publications

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“…The cell cytotoxicity of DOX-CDs was determined by MTS assay against HO-8910 ovarian cancer cells and EA.hy926 umbilical vein endothelial cells [30,31]. Briefly, the cells were seeded in a 96-well plate at a concentration of 0.5 × 10 5 cells/mL, maintained for 24 h to allow cell attachment.…”

Section: In Vitro Cytotoxicity Testmentioning

confidence: 99%

The Cost-Effective Preparation of Green Fluorescent Carbon Dots for Bioimaging and Enhanced Intracellular Drug Delivery

et al. 2020

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Doxorubicin entrapped carbon dots (DOX-CDs) were prepared for bioimaging and enhanced intracellular drug delivery. The CDs were synthesized via the hydrothermal method using citrate and urea under 200°C for 1 h. Then, DOX was successfully conjugated on the CDs via physicochemical interactions. The DOX-CDs exhibited good crystal structure, remarkable aqueous stability, excellent photoluminescence property, and a high quantum yield of 93%. The fluorescent images revealed that the DOX-CDs could be readily taken up by the cancer cells for cell labeling. Furthermore, endo-lysosomal pH-assisted DOX release behavior was observed from DOX-CDs, and the cytotoxicity of DOX-CDs was confirmed by the MTS assay against H0-8910 ovarian cancer cells. In addition, the CDs indicated bright fluorescent signal in the animal imaging test and demonstrated low toxicity after administration for 7 and 21 days. Therefore, the prepared CDs could be a promising imaging probe for biomedical imaging and intracellular drug delivery.

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Section: In Vitro Cytotoxicity Testmentioning

confidence: 99%

The Cost-Effective Preparation of Green Fluorescent Carbon Dots for Bioimaging and Enhanced Intracellular Drug Delivery

et al. 2020

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“…The experimental method was performed as previously described 46 . ALP-(MIs)n/DOX and AL-PLGA/DOX in glioma model nude mice: glioma model nude mice were first injected with freshly prepared luciferin substrate and imaged with the Xenogen IVIS Spectrum optical imaging device to prove to have similar volume tumors in the brain, at the 7 th day after implantation.…”

Section: Methodsmentioning

confidence: 99%

Hypoxia-responsive lipid-poly-(hypoxic radiosensitized polyprodrug) nanoparticles for glioma chemo- and radiotherapy

et al. 2018

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Treatment of malignant glioma is a challenge facing cancer therapy. In addition to surgery, and chemotherapy, radiotherapy (RT) is one of the most effective modalities of glioma treatment. However, there are two crucial challenges for RT facing malignant glioma therapy: first, gliomas are known to be resistant to radiation due to their intratumoral hypoxia; second, radiosensitizers may exhibit a lack of target specificity, which may cause a lower concentration of radiosensitizers in tumors and toxic side effects in normal tissues. Thus, novel angiopep-2-lipid-poly-(metronidazoles)n (ALP-(MIs)n) hypoxic radiosensitizer-polyprodrug nanoparticles (NPs) were designed to enhance the radiosensitizing effect on gliomas.Methods: In this study, different degrees and biodegradabilites of hypoxic radiosensitizer MIs-based polyprodrug (P-(MIs)n) were synthesized as a hydrophobic core. P-(MIs)n were mixed with DSPE-PEG2000, angiopep-2-DSPE-PEG2000 and lecithin to self-assemble ALP-(MIs)n through a single-step nanoprecipitation method. The ALP-(MIs)n encapsulate doxorubicin (DOX) (ALP-(MIs)n/DOX) and provoke the release of DOX under hypoxic conditions for glioma chemo- and radiotherapy. In vivo glioma targeting was tested in an orthotopic glioma using live animal fluorescence/bioluminescence imaging. The effect on sensitization to RT of ALP-(MIs)n and the combination of chemotherapy and RT of ALP-(MIs)n/DOX for glioma treatment were also investigated both in vitro and in vivo.Results: ALP-(MIs)n/DOX effectively accumulated in gliomas and could reach the hypoxic glioma site after systemic in vivo administration. These ALP-(MIs)n showed a significant radiosensitizing effect on gliomas and realized combination chemotherapy and RT for glioma treatment both in vitro and in vivo.Conclusions: In summary, we constructed a lipid-poly-(hypoxic radiosensitized polyprodrug) nanoparticles for enhancing the RT sensitivity of gliomas and achieving the combination of radiation and chemotherapy for gliomas.

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“…The cell cytotoxicity of the Mn-N-CNSs was evaluated by MTT assay [34]. The HO-8910 and NIH3T3 cells were cultured in RPMI-1640 medium for 24h for the cell attachment.…”

Section: Cell Cytotoxicity Assessmentmentioning

confidence: 99%

Development of Fluorescence/MR Dual-Modal Manganese-Nitrogen-Doped Carbon Nanosheets as An Efficient Contrast Agent for Targeted Ovarian Carcinoma Imaging

Han¹,

Xie

Wang

et al. 2020

Preprint

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Background: Development of sensitive and specific imaging approaches for the detection of ovarian cancer holds great promise for improving the therapeutic efficacy and the lifespan of the patients. Results: In this study, manganese-nitrogen doped carbon nanosheets coupled with Anti-HE4 monoclonal antibody (Mn-N-CNSs@Anti-HE4) were synthesized for the specific and targeted fluorescence/MR dual-modal imaging of ovarian carcinoma. The prepared Mn-N-CNSs@Anti-HE4 nanoprobe revealed excellent aqueous dispersity, good colloidal stability, great optical properties and high longtudinal relaxivity rate (r1 =10.30 mM-1s-1). Encouraged by the tunable photoluminiscence of the nanoprobe, the ovarian carcinoma cells were specifically labeled by the Mn-N-CNSs@Anti-HE4 nanoprobe with multi-color fluorescences (blue, green, red). Benefiting from the high r1 relaxivity, the nanoprobe exhibited targeted and enhanced MR contrast effect in the ovarian carcinoma cells and tumor bearing mice model. Besides, the high biocompatibility and easy excretion from the body of the nanoprobe were further confirmed in vivo. Conclusion: The prepared Mn-N-CNSs@Anti-HE4 with excellent biocompatibility, high-performance and superior tumor-targeting ability provides a novel fluorescence/MR dual-modal nanoprobe for specific labeling and detection of ovarian carcinoma cells in vitro and in vivo.

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Hypoxia-responsive ionizable liposome delivery siRNA for glioma therapy

Cited by 74 publications

References 46 publications

The Cost-Effective Preparation of Green Fluorescent Carbon Dots for Bioimaging and Enhanced Intracellular Drug Delivery

The Cost-Effective Preparation of Green Fluorescent Carbon Dots for Bioimaging and Enhanced Intracellular Drug Delivery

Hypoxia-responsive lipid-poly-(hypoxic radiosensitized polyprodrug) nanoparticles for glioma chemo- and radiotherapy

Development of Fluorescence/MR Dual-Modal Manganese-Nitrogen-Doped Carbon Nanosheets as An Efficient Contrast Agent for Targeted Ovarian Carcinoma Imaging

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