Construction and bioactivity evaluation of hepatocyte growth factor-loaded poly (lactic-co-glycolic acid) nanoparticles.
- Author:
Wen-Jiao XIAN
1
;
Xue-Er WANG
;
Lin ZHANG
Author Information
- Publication Type:Journal Article
- From: Journal of Southern Medical University 2018;38(2):217-223
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo explore the optimum conditions for preparing poly(lactic-co-glycolic) acid (PLGA) nanoparticles and evaluate the bioactivity of hepatocyte growth factor (HGF)-loaded PLGA nanoparticles.
METHODSBovine serum albumin (BSA)-loaded PLGA nanoparticles were prepared using a double emulsion-solvent evaporation method. The preparation process of nanoparticles was optimized by orthogonal test with the particle size, encapsulation efficiency (EE), drug loading (DD), and recovery as the indexes. HGF-loaded nanoparticles were then prepared under the optimized conditions. The EE, DD and release characteristics of BSA?loaded nanoparticles and HGF-loaded nanoparticles were evaluated using a BCA kit and HGF ELISA kit. The bioactivity of HGF-loaded nanoparticles was evaluated using CCK8 proliferation assay.
RESULTSThe HGF-loaded nanoparticles prepared under the optimized conditions had a uniform size with a mean diameter of 234.4∓4.8 nm, an EE of (77.75∓3.04)% and a recovery rate of (49.33∓9.34)%. The in vitro release curve highlighted an initial burst drug release followed by sustained release from the nanoparticles. HGF-loaded nanoparticles obviously promoted the proliferation of Hacat keratinocytes in vitro.
CONCLUSIONHGF-loaded nanoparticles prepared using double emulsion?solvent evaporation method under optimized conditions possesses a high EE with a good sustained drug release profile and a good bioactivity.