Expression of gap junctional proteins Cx37 mRNA in cerebral arterial endothelium induced by soluble eggs antigen of Schistosome
10.3760/cma.j.issn.1000-4955.2011.05.011
- VernacularTitle:血吸虫可溶性虫卵抗原诱发脑血管内皮细胞缝隙连接蛋白Cx37mRNA及蛋白的表达
- Author:
Xue-qun, LIN
;
Guo-yong, XUE
;
Gao-chun, ZHU
;
Xun, TANG
- Publication Type:Journal Article
- Keywords:
Brain;
Blood vessel;
Gap junction proteins;
Connexin 37;
Schistosomiasis
- From:Chinese Journal of Endemiology
2011;30(5):510-513
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the effects of gap junctional(GJ)proteins in pathogenesis of cerebral schistosomiasis, through observing the expression of gap junctional proteins Cx37 mRNA in cultured cerebral arterial endothelium incubated with soluble eggs antigen(SEA). MethodsCerebral artery endothelial cells of rabbits were incubated with SEA, and the experiments were divided into control group and SEA 1 - 5 groups (SEA concentrations were 10.0％ ,5.0％ ,3.3％ ,2.5％,2.0％, respectively), reverse transcription polymerase chain reaction (RT-PCR) and Western blotting were used to examine the expression of Cx37 mRNA and protein in cerebral artery endothelial cells of rabbits, respectively. Results Cx37 mRNA levels of control and SEA 1 - 5 groups were 0.239 ± 0.037, 0.260 ± 0.043, 0.218 ± 0.310, 0.647 ± 0.040, 0.419 ± 0.036, and 0.513 ± 0.038, respectively;SEA 3 - 5 groups were higher than control group of mRNA levels(all P＜ 0.05). Cx37 protein levels of control and SEA 1 - 5 group were 0.401 ± 0.045, 0.485 ± 0.048, 0.749 ± 0.052, 1.119 ± 0.063, 1.015 ± 0.057 and 0.605 ±0.047, respectively, of which SEA 2 - 5 groups were higher than control group(all P ＜ 0.05). ConclusionsExpression levels of Cx37 mRNA and protein in cultured cerebral artery endothelial cells incubated with SEA are higher than those of control cerebral artery endothelial cells, which suggests that the gap junction proteins may play an important role in pathogenesis of cerebral schistosomiasis through SEA and its secretion in infiltration of brain tissue and deposition in the cerebral arteries.
