Phagocytic function of human blood polymorphonuclear leukocytes in the presence of carrageenan, a potential vaginal microbicide.

Phagocytic function of human blood polymorphonuclear leukocytes in the presence of carrageenan, a potential vaginal microbicide.
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卡拉胶(一种潜在的阴道杀菌剂)存在下人血液多形核白细胞的吞噬功能。

DOI:
10.1007/s10753-007-9029-z
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发表时间:
2007
期刊:
影响因子:
5.1
通讯作者:
deBoisfleuryChevance,Anne
deBoisfleuryChevance,Anne
中科院分区:
医学2区
文献类型:
--
作者:
Malawista,StephenE;deBoisfleuryChevance,Anne

文献摘要

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卡拉胶目前正在进行临床试验,作为阴道凝胶产品的活性成分,用作女性控制的选择,以防止性交过程中艾滋病毒的传播。在这里,我们表明,在存在 0.5 mg/ml 角叉菜胶的情况下,人血液多形核白细胞 (PMN) 不会摄入这种物质(缺乏渐进性空泡化就证明了这一点),但可以摄入培养基中存在的微生物(不包括相邻的角叉菜胶)。此外,中性粒细胞以正常速度移动,进行趋化反应,并在刺激时将四氮唑蓝 (NBT) 还原为甲臜。因此,在角叉菜胶存在的情况下,吞噬反应似乎保持完整。
Carrageenan is currently undergoing clinical trials as the active constituent of a vaginal gel product for use as a female-controlled option to prevent the transmission of HIV during sexual intercourse. Here we show that in the presence of 0.5 mg/ml of carrageenan, human blood polymorphonuclear leukocytes (PMN) do not ingest this material, as evidenced by a lack of progressive vacuolization, but can ingest microorganisms present in the medium, excluding adjacent carrageenan. Moreover, PMN move at normal speeds, respond chemotactically, and reduce netroblue tetrazolium (NBT) to formazan on stimulation. Hence, in the presence of carrageenan the phagocytic response appears to remain intact.