Biomimetic and cell-based nanocarriers - New strategies for brain tumor targeting

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Neuro-oncology

Background:

• Significant advances in treating malignant brain tumors have been limited over the past two decades.
• Key challenges include effective drug delivery into the central nervous system and minimizing severe side effects.
• Current synthetic nanocarrier approaches for brain tumor treatment have not yet translated to clinical use.

Purpose of the Study:

• To review biological barriers hindering effective drug delivery for brain tumors.
• To explore cell-based nanocarriers, including extracellular vesicles and cell-membrane coated nanocarriers, as potential therapeutic delivery systems.
• To highlight the potential of biomimetic nanocarriers for improved brain tumor treatment.

Main Methods:

• Literature review of current research on brain tumor treatment challenges.
• Analysis of biological barriers affecting drug delivery to the central nervous system.
• Examination of cell-derived and biomimetic nanocarriers for therapeutic applications.

Main Results:

• Synthetic nanocarriers have shown limited clinical translation for brain tumor treatment.
• Cell-derived nanocarriers possess innate bio-interfacing properties beneficial for drug delivery.
• Extracellular vesicles and cell-membrane coated nanocarriers are under investigation for their potential in brain tumor therapy.

Conclusions:

• Cell-based nanocarriers offer a promising strategy to overcome drug delivery challenges in brain tumors.
• These biomimetic systems may provide higher selectivity and reduced toxicity compared to synthetic alternatives.
• Further investigation into cell-based nanocarriers could lead to safer and more effective brain tumor treatments.