尖吻蝮蛇毒PCA對(duì)HUVEC活性的影響
[Abstract]:Objective: to observe the ultrastructure of human umbilical vein endothelial cells (HUVEC) and its synthetic tissue factor (TF), (TF),) induced by protein C activator (PCA) from Agkistrodon acutus venom in southern Anhui. The effects of von Willebrand factor (vWF) and endothelin-1 (ET-1) levels and the antithrombotic mechanism of PCA were discussed. Methods: the experiment was divided into control group (DMEM solution), lipopolysaccharide (LPS) group (LPS 0.1 渭 g / ml), PCA group) and PCA 1 渭 g / ml), PCA LPS group (1 渭 g / ml PCA 0.1 渭 g / ml LPS),). The changes of endoplasmic reticulum (ER), mitochondrial morphology and autophagy were observed under transmission electron microscope (TEM) after 12 h treatment. ELISA was used to detect the content of TF,vWF,ET-1 in the supernatant, and RT-PCR was used to detect the expression level of vWF,ET-1 gene in cells.; Western blot was used to detect the expression level of intracellular TF protein. Results: compared with the control group, the membrane of HUVEC in LPS group was not smooth, there were bulge-like changes, mitochondria, endoplasmic reticulum swelling and autophagy increased. The ultrastructure of HUVEC in PCA group had no obvious change compared with control group. Compared with LPS group, the endoplasmic reticulum swelling disappeared and the number of autophagy decreased significantly in, PCA LPS group. Compared with the control group, the content of TF,vWF,ET-1 and the expression of vWF,ET-1 gene and TF protein in the supernatant of LPS group were significantly higher than those in the control group (P0.05). Compared with the control group, the expression levels of the three substances in the supernatant and intracellular cells of PCA group had no significant change (P0.05), but the expression level of HUVEC supernatant and intracellular TF,vWF,ET-1 in, LPS PCA group was significantly lower than that in, LPS PCA group (P0.05). Conclusion: (1) PCA (渭 g / ml) can reduce the ultrastructural changes of HUVEC induced by LPS and inhibit the increase of TF,vWF,ET-1 secretion of HUVEC induced by LPS.
【作者單位】: 皖南醫(yī)學(xué)院病理生理學(xué)教研室;皖南醫(yī)學(xué)院蛇毒研究室;皖南醫(yī)學(xué)院活性生物大分子研究安徽省重點(diǎn)實(shí)驗(yàn)室;
【基金】:安徽省教育廳自然科學(xué)研究基金重點(diǎn)項(xiàng)目(KJ2011A266)
【分類號(hào)】:R96
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