Influence of ischemia/reperfusion on function of vascular endothelial cells and effect of intervention with drug
- VernacularTitle:缺血再灌注对血管内皮细胞功能的影响及药物干预作用观察
- Author:
Chang-Lai ZHANG
;
Jian-Li WANG
;
Hui-Min SONG
;
Jun SHAO
;
Li-Hong LV
;
- Publication Type:Journal Article
- Keywords:
Endothelial cell?Umbilical vein?Anoxia/deoxygenating injury?2-hydroxymethyl-3,5,6-trimethylpyrazine?NF-kappa B?HLA antigens?Interleukin-2?T-lymphocytes?Apoptosis
- From:Chinese Journal of Current Advances in General Surgery
2004;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the influence of ischemia/reperfusion (anoxia/reoxygenation)[FK(W16*2。142mmZQ1mm]on immunofunction of endothelial cells(ECs) and effect of intervention with 2-hydroxymethyl-3,5,6-trimethylpyrazine on it.Methods:Model of ECs induced by anoxia/reoxygenation was established to mimic ECs ischemia/reperfusion injury in vivo with human umbilical vein endothelial cell line ECV304.Then 2-hydroxymethyl-3,5,6-trimethylpyraxine was used to intervene the anoxia/reoxygenation process.Nuclear transcriptional factor-?B(NF-?B) was exhibited by fluorescent staining,HLA-ABC,HLA-DR,CD86 and CD54 were detected by flow cytometry.Mixed endothelial cell-lymphocyte reaction(MELR) was conducted to examine the proliferation of lymphocyte,production of IL-2 and percentage of apoptotic lymphocyte.Results:Anoxia/reoxygenation made the ECV304 cell became round,shrunk and abscised,with increased plasma NF-?B,and changed from positive cytoplasm to positive nucleus.HLA-ABC,HLA-DR and CD86 on surface of cells increased but CD54 showed unchanged.MELR showed the incorporation of ~3H-TdR and production of IL-2 increased significantly and the percentage of apoptotic lymphocyte decreased.After 2-hydroxymethyl-3,5,6-trimethylpyrazine intervention,the ECV304 cell shapes recovered,NF-?B expression didn’t down-regulated,but the percentage of positive cells decreased,changes to positve dominant.Besides,reversal changes were shown in other parameters.Conclusion:Anoxia/reoxygenation influences some important immune related molecules in ECV304 cells.2-hydroxymethyl-3,5,6-trimethylpyrazine could antagonize these influences to maintain the immune function of endothelial cells in a relative normal manner.
