Effect of ligustrazine on the human scavenger receptor-AI expressed in Xenopus oocytes
- VernacularTitle:川芎嗪对爪蟾卵母细胞外源清道夫受体基因表达的影响
- Author:
Chunlei FAN
;
Liping GAO
;
Xingde WO
;
Jin YAN
;
Jialiang SONG
- Publication Type:Journal Article
- Keywords:
Xenopus oocyte;
GAS elements;
scavenger receptor;
oxLDL;
ligustrazine
- From:
Chinese Pharmacological Bulletin
1986;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Aim To investigate and evaluate the effect of ligustrazine on the expression of scavenger receptor type AI, the human ?-interferon activation site (GAS) elements regulatory systems of SR-AI expression wasfirst established in the Xenopus oocytes. Methods A plasmid, in which the human SR-AI gene was constructed downstream from the GAS elements, was microinjected into the nucleus of Xenopus oocytes. The oocytes then were cultured in the smooth muscle cell conditioned medium (SCM), In which the cell were cultured with the treatment of oxLDL for 2 days. In the other groups, the oocytes were treated with SCM containing the nature medicines ligustrazine, and the positive control drug ?-interferon respectively. Results The results demonstrated that SCM could upregulate the expression of SR-AI in this system, this action was suppressed by ligustrazine and ?-interferon. Conclusion Similar to the action of ?-interferon, ligustrazine can prevent the over-expression of SR-A induced by oxLDL, via their effect on the GAS elements regulatory pathway.
