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  • Title: [The effect of nuclear transcription factor-kappaB decoy oligodeoxynucleotides on the intimal hyperplasia in vein graft].
    Author: Hu XH, Yang J, Zhang Q, Zhang ZF, Zhang T, Duan PY, Duan ZQ.
    Journal: Zhonghua Wai Ke Za Zhi; 2003 Sep; 41(9):684-7. PubMed ID: 14680570.
    Abstract:
    OBJECTIVE: To investigate the effect of nuclear transcription factor-kappaB decoy oligodeoxynucleotides (NFkappaB decoyODNs) on the intimal hyperplasia (IH) in vein graft in rats. METHODS: Autogenous vein graft model for 72 Wistar rats was established, and the interior jugular vein was transplanted to common jugular artery by microsurgical technique. The rats were divided into 6 groups according to different processing methods, including NFkappaB decoyODNs 50 microg and 200 microg, scramble decoyODNs 50 microg and 200 microg, control and lipofectin + pluronic teams. Vein graft samples were harvested in 1 or 2 weeks after surgery and ICAM-1 mRNA were measured by RT-PCR. Western blotting and immunohistochemistry methods were also employed to detect the expression of p65 and ICAM-1. IH was compared at the same time. RESULTS: The intimal hyperplasia was evident in 1 or 2 weeks after vein graft, and ameliorated by 50 microg of NFkappaB decoyODNs with inhibition rate from 22% to 31%, 200 microg of NFkappaB decoyODNs had a higher inhibition rate from 41% to 53%. However, no effect was found in the other teams. The expression of ICAM-1 mRNA was also inhibited significantly by NFkappaB decoyODNs and more obvious in 2 weeks after surgery. Expression of ICAM-1 and p65 decreased greatly in NFkappaB decoyODNs team, which has a inhibition rate from 30% to 57%. CONCLUSION: Transfection of NFkappaB decoyODNs can inhibit the IH after vein graft, which may be accomplished by the inhibition of gene expression of ICAM-1.
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