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Radiofrequency and Near-Infrared Responsive Core-Shell Nanostructures Using Layersome Templates for Cancer Treatment.

Animesh Pan, Md Golam Jakaria, Samantha A Meenach

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    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel nanotherapeutic platform using liposomes with iron oxide nanoparticles and gold nanoshells for targeted cancer treatment. This system enables triggered drug release and hyperthermia, significantly enhancing therapeutic effects on lung cancer cells.

    Keywords:
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    Area of Science:

    • Biomedical Engineering
    • Nanotechnology
    • Materials Science

    Background:

    • Developing advanced nanocarriers for targeted drug delivery and cancer therapy is crucial.
    • Combining hyperthermia and chemotherapy offers synergistic therapeutic potential.
    • Stimuli-responsive drug release systems enhance treatment efficacy and reduce side effects.

    Purpose of the Study:

    • To develop a multifunctional nanotherapeutic platform for triggered drug release and hyperthermia.
    • To investigate the efficacy of this platform in delivering anticancer drugs to lung cancer cells.
    • To evaluate the combined therapeutic effect of drug delivery and hyperthermia stimulation.

    Main Methods:

    • Synthesized gold nanoshell-coated liposomes coencapsulating iron oxide nanoparticles (IONs) and doxorubicin (DOX) using a polyelectrolyte templating technique.
    • Modified nanostructures with polyethylene glycol for enhanced cellular uptake.
    • Investigated intracellular delivery, triggered drug release (via radio frequency or near-infrared), and therapeutic effects in A549 human lung cancer cells.

    Main Results:

    • The nanostructures successfully coencapsulated IONs and DOX within liposomes, protected by a gold nanoshell.
    • Following cellular uptake, DOX was retained in the cytosol until triggered by RF or NIR stimuli, after which it entered the nucleus.
    • Combined DOX delivery with RF or NIR stimulation demonstrated a significantly higher therapeutic effect on A549 cells compared to single treatments.

    Conclusions:

    • The developed multifunctional nanotherapeutic platform is effective for triggered drug release and hyperthermia.
    • This platform shows promise for enhanced lung cancer treatment by combining chemotherapy and hyperthermia.
    • The stimuli-responsive nature of the nanocarrier allows for precise control over drug release and therapeutic action.