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Revisiting inorganic nanoparticles as promising therapeutic agents: A paradigm shift in oncological theranostics
Mohammad Afsar Khan1, Deepti Singh1, Absar Ahmad2
1Molecular Cancer Genetics & Translational Research Lab, Section of Genetics, Department of Zoology, Aligarh Muslim University, Aligarh, 202002, India.
Abstract:
Cancer remains a global health problem largely due to a lack of effective therapies. Major cancer management strategies include chemotherapy, surgical resection, and radiation. Unfortunately, these strategies have a number of limitations, such as non-specific side effects, uneven delivery of the drugs, and lack of proper monitoring technology. Inorganic nanoparticles (NPs) are considered promising agents in treating and tracing cancer due to their unique physicochemical properties such as the controlled release of drugs, bioavailability, biocompatibility, stability, and large surface area. Also, they enhance the solubility of hydrophobic drugs, prolong their circulation time, prevent undesired off-targeting and subsequent side effects, making them efficient particles in cancer theranostics. Promising inorganic-NPs include gold, selenium, silica, and oxide NPs. Further, several techniques are used to modify the surface of inorganic-NPs, making them more efficient for the effective transport of therapeutic cargos to overcome cellular barriers. Thus, inorganic-NPs function effectively, surmounting the intrinsic drawbacks of traditional organic NPs. This mini-review summarizes the significant inorganic-NPs, their properties, surface modifications, cellular uptake, and bio-distributions, along with their potential use in cancer theranostics. We also discuss the promises and challenges faced during the inorganic-NPs mediated therapeutic approach for cancer and these particles' status in the clinical setting.
Insights
Inorganic nanoparticles offer advanced solutions for cancer theranostics, overcoming limitations of traditional treatments. These materials show promise for targeted drug delivery and enhanced cancer monitoring.
Area of Science:
- Nanomedicine
- Materials Science
- Oncology
Background:
- Cancer therapy faces challenges with traditional methods like chemotherapy and radiation, including side effects and uneven drug delivery.
- Inorganic nanoparticles (NPs) present unique physicochemical properties beneficial for cancer treatment and diagnostics.
- Limitations of current cancer therapies necessitate the development of novel approaches like nanoparticle-based theranostics.
Purpose of the Study:
- To review significant inorganic nanoparticles (NPs) for cancer theranostics.
- To summarize NP properties, surface modifications, cellular uptake, and biodistribution.
- To discuss the potential and challenges of inorganic NPs in clinical cancer therapy.
Main Methods:
- Literature review of inorganic nanoparticles (NPs) in cancer theranostics.
- Analysis of NP properties, surface modifications, and cellular interactions.
- Discussion of clinical applications and challenges of inorganic NP-based cancer treatments.
Main Results:
- Inorganic NPs (e.g., gold, selenium, silica, oxide) offer advantages like controlled drug release, enhanced solubility, and improved circulation time.
- Surface modifications of inorganic NPs improve therapeutic cargo transport and cellular barrier penetration.
- Inorganic NPs demonstrate potential in overcoming drawbacks of traditional organic nanoparticles in cancer theranostics.
Conclusions:
- Inorganic nanoparticles are promising for advanced cancer theranostics, offering improved efficacy and reduced side effects.
- Further research and clinical translation are needed to fully realize the potential of inorganic NPs in cancer treatment.
- Surface-modified inorganic NPs show significant potential for overcoming cellular barriers and enhancing targeted cancer therapy.
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