Preparation and in vitro evaluation of self-assembling peptide hydrogel loaded with doxorubicin / 中国组织工程研究
Chinese Journal of Tissue Engineering Research
;
(53): 2488-2493, 2020.
Article
in Chinese
| WPRIM
| ID: wpr-847607
ABSTRACT
BACKGROUND:
Chemotherapy is an important method for treating osteosarcoma, but traditional small molecule therapy is not ideal for clinical efficacy and has serious adverse reactions. Therefore, it is necessary to develop a new method for osteosarcoma, which can anti-tumor at low doses and reduce adverse reactions.OBJECTIVE:
To construct a self-assembling peptide hydrogel (SAPH) loaded with doxorubicin (DOX) and analyze its drug release performance and biocompatibility in vitro.METHODS:
DOX was introduced into SAPH composed of FEFEFKFK (F, phenylalanine; E, glutamic acid; K, lysine), prepared to contain 20, 30, and 40 g/L DOX-SAPH of FEFEFKFK; the DOX mass concentration in this system was 2 g/L. Three kinds of DOX-SAPH were placed in PBS, and the amount of DOX released was regularly detected. Three DOX-SAPH extracts were co-cultured with rabbit bone marrow mesenchymal stem cells, and the cell survival rate was detected by CCK-8 method. The DOX solution containing different concentrations of DOX and the DOX-SAPH extract (containing FEFEFKFK 30 g/L) were co-cultured with MG63 human osteosarcoma cells, and the cell survival rate was detected by CCK-8 method. RESULTS ANDCONCLUSION:
(1) With the increase of the concentration of FEFEFKFK in the hydrogel, the sustained release effect of DOX-SAPH was enhanced. The cumulative drug release rate of DOX-SAPH at 20, 30, and 40 g/L at the 168th hour in vitro was 88%, 83%, and 80%. (2) The cells in 20 g/L DOX-SAPH extract group proliferated faster than 30 and 40 g/L DOX-SAPH extract group at 1, 3, and 5 days in vitro (P 0.05). When the concentration of DOX was higher than 12.5 mg/L, the cell toxicity of the DOX solution was greater than that of DOX-SAPH extract (P < 0.05). (4) The results show that DOX-SAPH has a good drug slow-release effect, which can inhibit the growth of MG63 osteosarcoma cells.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Tissue Engineering Research
Year:
2020
Type:
Article
Similar
MEDLINE
...
LILACS
LIS