Study on in vivo pharmacokinetics and in vitro anti-inflammatory effects of cannabidiol-cholesterol succinate monoester-g-carboxymethyl chitosan nano-micelles
- VernacularTitle:大麻二酚-胆甾醇琥珀酸单酯-g-羧甲基壳聚糖纳米胶束体内药动学及体外抗炎作用研究
- Author:
Rui LI
1
;
Liyan LU
1
;
Chu XU
1
;
Rui HAO
1
;
Xianghan TIAN
1
;
Wenhui RUAN
2
;
Yingli WANG
3
Author Information
1. College of Traditional Chinese Medicine and Food Engineering，Shanxi University of Chinese Medicine，Shanxi Jinzhong 030619，China
2. Shanxi Center of Drug Evaluation （Shanxi Institute of Medicine and Life Science），Taiyuan 030006，China
3. Experimental Management Center，Shanxi University of Chinese Medicine，Shanxi Jinzhong 030619，China
- Publication Type:Journal Article
- Keywords:
cannabinol;
nano-micelles;
cholesterol succinate monoester;
carboxymethyl chitosan;
pharmacokinetics
- From:
China Pharmacy
2024;35(23):2889-2895
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To study the pharmacokinetics and tissue distribution of cannabidiol（CBD）-cholesterol succinate monoester-g-carboxymethyl chitosan （CCMC） nano-micelles in rats， and to evaluate its anti-inflammatory effect. METHODS CBD- CCMC nano-micelles were prepared by dialysis method and the properties were characterized. SD rats were divided into CBD group and CBD-CCMC nano-micelles group with 6 rats in each group. The rats were given 100 mg/kg CBD and CBD-CCMC nano- micelle by intragastric administration， respectively （based on the CBD load）. Blood was collected from the posterior ophthalmic venous plexus at 0.5， 1， 1.33， 1.5， 1.75， 2， 4， 8， 24， 48 h after administration. The heart， liver， spleen， lung， kidney and muscle tissues of rats were separated at 0.25， 1.5， 10 and 24 h after administration of CBD and CBD-CCMC nano-micelle with the same dose. The drug content in plasma and tissues was determined， the pharmacokinetic parameters were calculated， and the tissue distribution was analyzed. The inflammatory model of Caco-2 cells was induced by lipopolysaccharide， after 24 h of treatment with 5， 10， and 15 µg/mL CBD and CBD-CCMC nanomicelles （based on loaded CBD）， its anti-inflammatory activity was investigated by measuring cell viability， transepithelial electrical resistance （TEER） and inflammatory cytokines IL-1β， IL-8 and TNF-α. RESULTS The prepared CBD- CCMC nano-micelles had a particle size of （230.6±1.8） nm， a polydispersity index of 0.170±0.053， a Zeta potential of （－13.5± 1.2） mV， an encapsulation rate of （86.35±0.56）% and a drug loading of （9.18±0.32）%， respectively； the solubility was 68.240 μg/mL. The pharmacokinetic results showed that the AUC0-48 h， AUC0-∞， half-life time and peak concentration of CBD-CCMC nano- micelle group were significantly increased/extended compared with CBD group （P＜0.05 or P＜0.01）. The results of the tissue distribution study showed that at the same time point， the drug distribution concentration of CBD-CCMC nanomicelles in the rat tissue was higher than that in the CBD group. Research on anti-inflammatory effects shows that compared with CBD of the same mass concentration, CBD-CCMC nano-micelles can significantly increase cell viability （P＜0.05 or P＜0.01）， enhance TEER， and reduce the levels of IL-8， IL-1β and TNF-α in cells （P＜0.01）， and the secretion levels of inflammatory cytokines IL-8， IL-1β and TNF- α were significantly decreased （P＜0.01）. CONCLUSIONS CBD-CCMC nano-micelles can increase the plasma concentration and tissue distribution concentration of CBD， and improve anti-inflammatory activity of CBD.
