Co-transfection of tPA gene and c-myc antisense oligodeoxynucleotides for the prevention of intimal hyperplasia of rabbit auto-transplantion artery
- VernacularTitle:联合转染反义c-myc寡核苷酸和组织纤溶酶原激活物基因预防损伤后动脉内膜增生的研究
- Author:
Zhongjun WU
;
Weiwei WU
;
Lin YU
;
De SHI
;
Shusen ZHENG
- Publication Type:Journal Article
- Keywords:
Oligonucleotides,antisense;
Tissue plasminogen activator;
Transfection;
Intima hyperplasia
- From:
Chinese Journal of General Surgery
2001;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the effects of co-transfection of proto-oncogene c-myc antisense oligodeoxynucleotides(c-myc-AODN) and tissue-type plasminogen activator(tPA) gene on intimal hyperplasia of auto-transplantion artery in rabbit. Methods The left and right external iliac artery(length 1.0 cm) of rabbits were cross transplanted. The artery grafts and sutures were respectively soaked in Lipofection, c-myc-AODN, pBudCE4.1/tPA, c-myc-AODN and pBudCE4.1/tPA solution for 15 minutes. Each group were divided into five subgroups(n=5, in each subgroup) according to the sacrifice times(3, 7, 14, 28 and 56 d after operation). Specimens were harvested for pathology, chromogenic substrate test, 3H-TdR incorporation test and immunochemisty coloration study. Result The intimal area, stenosis ratio, 3H-TdR incorporation, PCNA positive cell in c-myc-AODN adding tPA co-transfection group were significantly lower than that of control group(P0.01), and that were lower than c-myc-AODN transfection group and tPA gene transfection group(P0.05). Conclusion Vascular local co-transfection of tPA gene and c-myc-AODN effectively inhibits the proliferation of vascular smooth muscle cell(VSMC) and hyperplasia of intima of the transplanted artery.
