Résumé
AIM To establish an efficient and convenient system for expressing functional proteins. METHODS Xenopus leavis females were injected with HCG, eggs were harvested next morning and dejellied by 2% cysteine, from which the Xenopus leavis egg cell free translating system was prepared. Through subcloning technique, TFAR19 gene was cloned to pBluescript SK plasmid which was linearized by enzyme, then transcript and capped in vitro to synthesis the cRNA of TFAR19. RESULTS This cRNA was translated in freshly prepared cell free translating system, the product was identified by Western Blot. CONCLUSION The results showed that this translating system could efficiently translate TFAR19 cRNA and be a very useful translating tool.
Résumé
AIM To study the effects of sera derived from rats administrated Lugu Ganoderma Lucidum (LGL) on the expression of adhesion molecules ICAM 1 and VCAM 1 induced by oxidative low density lipoprotein (ox LDL) and glycated albumin METHODS The expression of ICAM 1 and VCAM 1 on the surface of endothelial cells was detected by endothelial cell enzyme linked immunosobent assay (ELISA) and flow cytometric technique RESULTS The results by cell ELISA demonstrated that the sera derived from the rats administrated 0 12 g?kg -1 p o of LGL did not show significant effects on theexpression of ICAM 1 induced by ox LDL, but the sera from the rats administrated 0 24 g?kg -1 , 0 72 g?kg -1 po for ten days produced significant effects of inhibiting the expression of ICAM 1 induced by ox LDL and the expression of ICAM 1 and VCAM 1 induced by glycated albumin The results by flow cytometric techniques showed that the sera from the rats administrated 0 72 g?kg -1 for ten days produced the same effect on ICAM 1 induced by ox LDL and glycated albumin CONCLUSION Lugu Ganoderma Lucidum can inhibit the expression of adhesion molecules on the surface of endothelial cells induced by ox LDL and glycated albumin.