Title:Formulation and Characterization Studies of Paclitaxel Incorporated
Kollidon® SR and Chitosan Nanoparticles: An In vitro Evaluation for
Potential Use for Colorectal Cancer Treatment
Volume: 21
Issue: 1
Author(s): Özge Atasoy Koca, Gülay Büyükköroğlu and Ebru Başaran*
Affiliation:
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Anadolu University, 26470, Tepebaşı, Eskişehir,
Türkiye;
Keywords:
Paclitaxel, Kollidon® SR, chitosan, polymeric nanoparticles, colorectal cancer, spray dryer.
Abstract:
Background: Chemotherapy is regarded as first-line therapy in various cancer types besides
surgical procedures. However, lack of cell selectivity and poor drug targeting to the cancer zone of the
active agents results in accumulation in normal tissues with considerably high severe side effects. Therefore,
novel drug delivery systems are required to enhance cancer treatment.
Objective: In this study, Paclitaxel (PTX) incorporated Kollidon® SR (KSR) and Chitosan (CS) based
polymeric nanoparticles were prepared for potential use for colorectal cancer treatment.
Methods: Polymeric nanoparticles were prepared by spray dying method. Physicochemical characterization
studies were performed with particle size (PS), polydispersity index (PDI), zeta potential (ZP), drug
loading (DL %), encapsulation efficiency (EE %) and structural evaluations using differential scanning
calorimetry (DSC), X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FT-IR) and
proton nuclear magnetic resonance (1H-NMR) analyses. Cytotoxicity of the nanoparticles was screened
on HT-29 (human colorectal adenocarcinoma) and HTC-15 (Dukes' type C, colorectal adenocarcinoma)
cell lines with MTT assay.
Results: Analysis results revealed the successful incorporation of PTX into the polymeric lattices. Particles
showed cytotoxic activity on HT-29 and HTC-15 cell lines, depending on the application dose after
48 hours. Nanoparticles also remained stable at 5°C ± 3°C and 25°C ± 2°C (60% ± 5 Relative Humidity
(RH)) during the storage period of 6 months.
Conclusion: As a result of the study, KSR and CS-based nanoparticles could be regarded as promising
nano-carriers for improved therapeutic efficacy of PTX for colorectal cancer treatment.