Versatile and Robust Method for Antibody Conjugation to Nanoparticles with High Targeting Efficiency

Area of Science:

• Nanomedicine
• Bioconjugation Chemistry
• Cancer Therapeutics

Background:

• Antibodies are crucial for targeted chemotherapy delivery in nanomedicine.
• Antibody-conjugated nanoparticles offer versatile and customizable solutions for cancer treatment.
• Scalable, reproducible synthesis methods are needed for clinical translation.

Purpose of the Study:

• To develop a facile and reproducible coating strategy for antibody-conjugated nanoparticles.
• To evaluate the selectivity of antibody-conjugated nanoparticles against cancer cells expressing specific markers.
• To establish a versatile platform for nanoparticle functionalization in targeted drug delivery.

Main Methods:

• Utilized 'click chemistry' for a facile antibody conjugation strategy.
• Developed antibody-conjugated nanoparticles targeting CD44 and Epidermal Growth Factor Receptor (EGFR).
• Assessed nanoparticle selectivity towards cancer cells overexpressing CD44 and EGFR.

Main Results:

• The developed coating strategy demonstrated high reproducibility and versatility.
• Functionalized nanoparticles exhibited excellent cell specificity for CD44 and EGFR overexpressing cells.
• The non-toxic coating method is suitable for various nanoparticle types and antibody conjugations.

Conclusions:

• The facile click chemistry-based coating strategy enables reproducible antibody conjugation to nanoparticles.
• This method provides highly specific targeting of cancer cells, paving the way for advanced drug delivery systems.
• The versatile and non-toxic approach supports the development of next-generation targeted nanotherapeutics.