Emerging nanoparticles that target and eliminate cancer stem cells

Area of Science:

• Oncology
• Nanotechnology
• Drug Delivery

Background:

• Cancer stem cells (CSCs) drive tumor recurrence, metastasis, and resistance to conventional therapies.
• CSCs possess self-renewal and differentiation capabilities, making them difficult to eliminate.
• Current treatments are often ineffective against CSCs, limiting overall treatment success.

Purpose of the Study:

• To review recent advancements in nanoparticle (NP)-based strategies for targeting and eradicating cancer stem cells (CSCs).
• To explore various types of NPs and their mechanisms for CSC intervention.
• To identify challenges and future directions in nanoparticle-mediated CSC therapy.

Main Methods:

• Systematic review of recent literature on nanoparticle applications for CSC eradication.
• Categorization of NPs into organic, inorganic, and biologically derived types.
• Analysis of NP targeting strategies, including surface modification with CSC-specific markers and pathway modulators.

Main Results:

• Various NPs (liposomes, polymeric, gold, silica, EVs, cell membrane-coated) show potential for CSC targeting.
• Nanoplatforms utilize surface modifications for active CSC targeting and elimination.
• Progress has been made in developing NPs for CSC-specific drug delivery.

Conclusions:

• Nanoparticles represent a promising therapeutic platform for overcoming CSC-mediated drug resistance and recurrence.
• Challenges in targeting efficiency, manufacturing, and safety evaluation need to be addressed for clinical translation.
• Continued innovation in drug delivery systems and vehicles will advance CSC-targeted therapies.