Effect of functionalization of polymeric nanoparticles incorporated with whole attenuated rabies virus antigen on sustained release and efficacy
| Autor: | S. Karthick Raja Namasivayam, Kiran Nivedh, A.N. Nishanth |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Nanoparticle Nanotechnology 02 engineering and technology Nanovaccines medicine.disease_cause lcsh:TD1-1066 Chitosan 03 medical and health sciences chemistry.chemical_compound Biopolymers Zeta potential medicine Bovine serum albumin lcsh:Environmental technology. Sanitary engineering biology Rabies virus technology industry and agriculture General Medicine 021001 nanoscience & nanotechnology 030104 developmental biology chemistry Drug delivery Biophysics biology.protein Surface modification Nanocarriers 0210 nano-technology PLGA-PEG Sustained release |
| Zdroj: | Resource-Efficient Technologies, Vol 2, Iss S1, Pp S25-S38 (2016) |
| ISSN: | 2405-6537 |
| DOI: | 10.1016/j.reffit.2016.10.007 |
| Popis: | Nanovaccines introduced a new dimension to prevent or cure diseases in an efficient and sustained manner. Various polymers have been used for the drug delivery to increase the therapeutic value with minimal side effects. Thus the present study incorporates both nanotechnology and polymers for the drug delivery. Poly(d,l-lactic-co-glycolic acid)-b-poly(ethylene glycol) was incorporated with the rabies whole attenuated viral antigen using double emulsion (W/O/W) method and characterized by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). Chitosan-PEG nanoparticles incorporated with the rabies whole attenuated virus antigen (CS-PEG NP-RV Ag.) were prepared using Ionic Gelation method. The CS-PEG NP-RV Ag. was surface modified with biocompatible polymers such as Acacia, Bovine Serum Albumin (BSA), Casein, Ovalbumin and Starch by Ionic Gelation method. The morphology was confirmed by SEM and Transmission Electron Microscopy (TEM). The surface modification was confirmed by Fourier Transform Infrared Spectroscopy (FTIR), Zeta potential. The size distribution of CS-PEG-RV Ag. and surface modified CS-PEG-RV Ag. by respective biocompatible polymers was assessed by Zetasizer. Release profile of both stabilized nanoparticles was carried out by modified centrifugal ultrafiltration method which showed the sustained release pattern of the Rabies Ag. Immune stimulation under in-vitro condition was studied using rosette assay and phagocytosis assay. In-vitro toxicity using human blood and genotoxicity using human blood DNA was also studied to assess the toxicity of the nanoformulations. The results of these studies infer that PLGA-b-PEG nanoparticles, CS-PEG and surface modified CS-PEG nanoparticles may be an efficient nanocarrier for the RV Ag. to elicit immune response sustainably with negligible toxic effect to the human system. |
| Databáze: | OpenAIRE |
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