Balancing the Risks and Rewards of Carbon Nanotubes in Cancer Applications

Area of Science:

• Nanotechnology and Oncology
• Materials Science in Medicine
• Cancer Theranostics

Background:

• Carbon nanotubes (CNTs) are advanced nanomaterials with unique properties for cancer theranostics.
• Their applications include drug delivery, enhanced imaging, photothermal therapy, and photodynamic therapy.
• Challenges include limited light penetration for deep-seated tumors and long-term safety concerns.

Purpose of the Study:

• To critically review the dual nature of CNTs in oncology, synthesizing therapeutic applications and toxicity mechanisms.
• To evaluate the benefits of CNTs in cancer therapy against their potential risks and biological effects.
• To guide researchers, clinicians, and regulatory officials in balancing safety and efficacy for clinical translation.

Main Methods:

• Comprehensive literature review of current developments in CNT-based cancer therapy and diagnostics.
• Analysis of mechanistic insights into CNT toxicity, including oxidative stress, inflammation, and tumorigenesis pathways.
• Evaluation of preclinical studies, focusing on nanoagent systems like CNT/PEI/durvalumab in animal models.

Main Results:

• CNTs enhance cancer therapy as drug carriers, radiosensitizers, and immune modulators, with diagnostic applications in multimodal imaging.
• Evidence links CNT exposure to pathways implicated in tumorigenesis and metastasis, such as oxidative stress and inflammation.
• Preclinical studies primarily utilize animal models, highlighting the need for further investigation into long-term effects.

Conclusions:

• CNTs offer significant potential in cancer theranostics but their use necessitates a thorough understanding of associated risks.
• Standardization of functionalization, rigorous toxicological testing, and long-term biocompatibility studies are crucial.
• Balancing therapeutic benefits with biological risks is essential for the safe clinical advancement of CNT-based nanotechnologies.