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Enhancement of oral bioavailability of salmon calcitonin through chitosan-modified, dual drug-loaded nanoparticles
- Source :
- International journal of pharmaceutics. 557
- Publication Year :
- 2018
-
Abstract
- Because numerous challenges limit the effective oral delivery of protein and peptide drugs, we developed promising chitosan (CS)-modified, dual drug-loaded nanoparticles (NPs) simultaneously containing salmon calcitonin (sCT) and puerarin (PR) (CS-sCT/PR-NPs), and to explore the potential of PR as a protease inhibitor. This oral delivery system showed efficient encapsulation of sCT (75.7%) and PR (50.9%), protection of encapsulated sCT and PR from premature release in simulated gastric fluid (SGJ, pH 1.2), and sustained-release behavior in phosphate buffer saline (PBS, pH 7.4). CS-sCT/PR-NPs were capable of sequential drug-release in which PR was partially released prior to sCT, allowing PR to play a role of enzyme inhibitor before sCT release. Compared with CS-sCT-NPs, CS-sCT/PR-NPs were more stable in simulated intestinal fluid containing pancreatinum. The internalization of fluorescein isothiocyanate-labeled sCT (FITC-sCT) by Caco-2 cells increased when incorporated into NPs compared with free sCT. In vivo, the oral absolute bioavailability of sCT in CS-sCT/PR-NPs was 12.52 ± 1.83%, approximately 1.74-fold higher than that of the NPs not co-loaded with PR. In conclusion, the CS-based NPs and introduction of PR as a protease inhibitor improved the oral bioavailability of sCT and had potential to be developed as an oral delivery system of peptide drug.
- Subjects :
- Drug
Calcitonin
Cell Survival
media_common.quotation_subject
Pharmaceutical Science
Administration, Oral
Biological Availability
Peptide
02 engineering and technology
Pharmacology
030226 pharmacology & pharmacy
Chitosan
Rats, Sprague-Dawley
03 medical and health sciences
chemistry.chemical_compound
0302 clinical medicine
immune system diseases
Puerarin
In vivo
hemic and lymphatic diseases
Animals
Humans
Fluorescein
media_common
chemistry.chemical_classification
Drug Carriers
biology
Intestinal Secretions
021001 nanoscience & nanotechnology
Isoflavones
Bioavailability
Drug Liberation
surgical procedures, operative
chemistry
Intestinal Absorption
Enzyme inhibitor
biology.protein
Nanoparticles
Caco-2 Cells
0210 nano-technology
human activities
therapeutics
Subjects
Details
- ISSN :
- 18733476
- Volume :
- 557
- Database :
- OpenAIRE
- Journal :
- International journal of pharmaceutics
- Accession number :
- edsair.doi.dedup.....204f77e9830ea19ec0184457fb8fb29d