Penicillin G-induced microbicidal activity of endothelial cells cultured on gelfoam blocks.

Penicillin G-induced microbicidal activity of endothelial cells cultured on gelfoam blocks.
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青霉素 G 诱导的明胶海绵块上培养的内皮细胞的杀菌活性。

DOI:
10.1093/infdis/174.5.1001
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发表时间:
1996
期刊:
The Journal of infectious diseases
影响因子:
--
通讯作者:
Rosen,GM
Rosen,GM
中科院分区:
--
文献类型:
--
作者:
Zhang,B;Centra,M;Cao,GL;Taylor,RM;Ratych,RE;Rosen,GM

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大量的证据表明,单层培养的内皮细胞具有吞噬细菌的能力,但不能杀死细菌。几年前,一种新的三维内皮细胞培养模型被开发出来,它模拟了小血管和毛细血管中内皮细胞的形态。鉴于内皮细胞可能来源于与巨噬细胞相同的多能干细胞,探索了内皮细胞是否可以吞噬和杀死细菌的问题。培养在明胶海绵上的内皮细胞对金黄色葡萄球菌具有杀菌活性,2h后达到最大杀灭率>90%。有证据表明细菌粘附在内皮细胞的质膜上。随后是S的吞噬。金黄色葡萄球菌,导致细胞内杀伤。青霉素G,包括在内皮细胞生长培养基中,被认为是一个关键因素的杀菌活性证明了明胶海绵块负载内皮细胞。
A body of evidence has surfaced documenting the ability of endothelial cells cultured on mono-layers to phagocytose but not kill bacteria. Several years ago, a new three-dimensional endothelial cell culturing model was developed, which simulated the morphology of the endothelium in small vessels and capillaries. Given that endothelial cellsmay be derived from the same pluripotent stem cells as macrophages, the question of whether endothelial cells might phagocytose and kill bacteria was explored. Endothelial cells grown on Gelfoam blocks exhibited bactericidal activity towardsStaphylococcus aureus, reaching maximal killing of >90% after 2 h. Evidence documents the involvementof bacterial adherence to the plasma membrane of the endothelial cell. This is followed by phagocytosis ofS. aureus, leading to intracellular killing. Penicillin G, included in the endothelial cell growth medium, was found to be a critical factor in the bactericidal activity demonstrated by Gelfoam blocks laden with endothelial cells.
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