1. Enhanced targeted treatment of cervical cancer using nanoparticle-based doxycycline delivery system
- Author
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Sadia Anjum, Ayesha Akhtar, Saleh M. Aldaqal, Maisa S. Abduh, Hammad Ahmad, Riaz Mustafa, Faiza Naseer, Maryam Sadia, and Tahir Ahmad
- Subjects
Doxycycline ,Cervical Cancer ,Novel Drug Delivery System ,Sustained release ,Targeted therapy ,Immunotherapy ,Medicine ,Science - Abstract
Abstract This study investigates a nanoparticle-based doxycycline (DOX) delivery system targeting cervical cancer cells via the CD44 receptor. Molecular docking revealed a strong binding affinity between hyaluronic acid (HA) and CD44 (binding energy: -7.2 kJ/mol). Characterization of the HA-Chitosan nanoparticles showed a particle size of 284.6 nm, a zeta potential of 16.9 mV, and a polydispersity index of 0.314, with SEM confirming smooth surface morphology. The encapsulation efficiency of DOX-loaded nanoparticles was 89.32%, exhibiting a sustained release profile, with 67.45% released over 72 h in acidic conditions (pH 5.5). Cytotoxicity assays demonstrated a significant reduction in HeLa cell viability to 22% at 72 h, compared to 67% in normal HEK cells. Stability tests confirmed the maintenance of nanoparticle integrity and a consistent drug release profile over three months. Cell migration was reduced by 45%, and RT-PCR analysis revealed a 53% downregulation of TNF-α expression, suggesting effective targeting of inflammatory pathways. These results underscore the potential of HA-Chitosan-based DOX nanoparticles in improving cervical cancer treatment through enhanced targeted delivery and inhibition of tumor-promoting mechanisms.
- Published
- 2025
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