Preparation of drug loading system of black phosphorus nanosheets and its anti-ischemic brain injury
10.16438/j.0513-4870.2022-0902
- VernacularTitle:黑磷纳米片载药体系的制备及其抗缺血性脑损伤的作用
- Author:
Mei-li ZHANG
1
;
Meng ZHANG
1
;
Shu-jiang YIN
1
;
Jing HOU
1
;
Wen-tian ZHAO
1
;
Xing TIAN
1
Author Information
1. School of Pharmacy, Shihezi University, Shihezi 832099, China; Xinjiang Key Laboratory of Plant Medicine Resource Utilization of the Ministry of Education, Shihezi 832099, China
- Publication Type:Research Article
- Keywords:
black phosphorus;
resveratrol;
rug carrier;
ischemic brain injury;
targeting
- From:
Acta Pharmaceutica Sinica
2022;57(12):3660-3668
- CountryChina
- Language:Chinese
-
Abstract:
In this study, black phosphorus nanosheets (BP) were prepared by the ordinary liquid phase method, and resveratrol was loaded on the BP after being modified by polyethylene glycol. The brain targeting of BP was investigated by fluorescent protein labeling, and the effects of black phosphorus on cerebral ischemia/reperfusion injury were studied by 2,3,5-triphenyltetrazolium chloride (TTC) staining, neurobehavioral evaluation, and brain edema. Protein immunoblotting analysis was used to explore the molecular mechanism of the BP drug delivery system on ischemic brain injury. Hemolysis test and hematoxylin-eosin (H&E) staining were used to evaluate its biocompatibility. The results showed that BP had excellent drug loading capacity, uniform drug loading system structure and particle size, stable drug release curve, and excellent photothermal effect. Through the analysis and comparison of fluorescence intensity, it was found that BP can increase the permeability of blood-brain barrier (BBB) under the condition of near-infrared light assisted irradiation, and make drugs more pass through the BBB. In addition, the black phosphorus nano tablet drug delivery system can significantly improve the neurobehavioral disorder of mice after modeling, and the cerebral infarction area and brain edema degree are significantly decreased. Western blot experiments showed that the drug delivery system could play an anti-ischemic brain injury role by activating the expression of antioxidant signaling pathway proteins nuclear factor E2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1). The hemolysis test and H&E test results of the BP drug carrier system showed that it had no obvious toxicity and high safety. In conclusion, the BP prepared in this study had high drug loading, good photothermal performance, and high safety. Under the near-infrared condition, they also have certain brain targeting ability, which can improve the therapeutic effect of drugs in the brain. Animal welfare and experimental procedures were following the regulations of the Animal Ethics Committee of the First Affiliated Hospital of Shihezi University.
