Uner, Burcu, Akyildiz, Erdogan Oguzhan, Kolci, Kubra, Eskiocak, Onur, Reis, Rengin, Beyaz, Semir (March 2025) Nanoparticle Formulations for Intracellular Delivery in Colorectal Cancer Therapy. AAPS PharmSciTech, 26 (3). p. 81. ISSN 1530-9932
Abstract
This study introduces advanced nanoparticle-based drug delivery systems (NDDS) designed for targeted colorectal cancer treatment. We developed and characterized three distinct formulations: Bevacizumab-loaded chitosan nanoparticles (BEV-CHI-NP), polymeric micelles (BEV-PM), and BEV-conjugated exosomes enriched with AS1411 and N1-methyladenosine (AP-BEV + M1A-EXO). Each formulation exhibited optimized physicochemical properties, with particle sizes between 150 and 250 nm and surface charges ranging from + 14.4 to + 43 mV, ensuring stability and targeted delivery. The AP-BEV + M1A-EXO formulation demonstrated targeted delivery to VEGF, a protein commonly overexpressed in colorectal cancer cells, as indicated by localized staining. This suggests a more precise delivery of the therapeutic agent to VEGF-enriched regions. In contrast, the BEV-CHI-NP formulation exhibited a broader pattern of tumor suppression, evidenced by reduced overall staining intensity. The BEV-PM group showed moderate effects, with a relatively uniform protein expression across tumor tissues. In vivo studies indicated that the AP-BEV + M1A-EXO formulation achieved a notable reduction in tumor volume (~ 65.4%) and decreased levels of tumor biomarkers, including CEA and CA 19-9, compared to conventional BEV-API treatment. In vitro experiments using human colon tumor organoids (HCTOs) further supported these findings, showing a significant reduction in cell viability following exposure to AP-BEV + M1A-EXO. These results suggest that combining aptamer specificity with exosome-based delivery systems could enhance the precision and effectiveness of colorectal cancer therapies, representing a potential advancement in treatment strategies. In vivo experiments further revealed that the AP-BEV + M1A-EXO formulation outperformed conventional BEV-API treatment, achieving a four-fold increase in tumor suppression. This formulation resulted in a 65.4% reduction in tumor volume and a significant decrease in tumor biomarkers, including CEA and CA 19-9. In vitro studies also demonstrated a significant reduction in cell viability in human colon tumor organoids exposed to AP-BEV + M1A-EXO. These findings highlight the potential of combining aptamer specificity with exosome-based delivery systems to enhance the precision and efficacy of colorectal cancer therapies, marking a promising step forward in cancer treatment innovation.
| Item Type: | Paper |
|---|---|
| Subjects: | diseases & disorders > cancer diseases & disorders diseases & disorders > neoplasms diseases & disorders > cancer > cancer types > colorectal diseases & disorders > cancer > cancer types |
| CSHL Authors: | |
| Communities: | CSHL labs > Beyaz lab |
| SWORD Depositor: | CSHL Elements |
| Depositing User: | CSHL Elements |
| Date: | 7 March 2025 |
| Date Deposited: | 11 Mar 2025 17:42 |
| Last Modified: | 11 Mar 2025 17:42 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/41811 |
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