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厌氧菌对人多形核白细胞杀灭奇异变形杆菌的影响。

Effect of anaerobic bacteria on killing of Proteus mirabilis by human polymorphonuclear leukocytes.

作者信息

Namavar F, Verweij A M, Bal M, van Steenbergen T J, de Graaff J, MacLaren D M

出版信息

Infect Immun. 1983 Jun;40(3):930-5. doi: 10.1128/iai.40.3.930-935.1983.

Abstract

Killing of Proteus mirabilis by human polymorphonuclear leukocytes was tested in the presence of different Bacteroides species. In vitro experiments showed that anaerobic bacteria interfered with the killing of aerobic bacteria. However, this inhibitory effect was not a property of all Bacteroides species. Bacteroides gingivalis W83 showed the greatest inhibitory effect of the five Bacteroides strains tested. Killing of P. mirabilis was inhibited by the culture supernatant of B. gingivalis but not by washed cells. Two factors were found in the supernatant of B. gingivalis to account for the inhibitory effect. One was heat stable with a molecular weight of less than 3,500 and inhibited the killing activity of leukocytes, and the other was heat labile and partly inactivated the complement system. The killing experiments paralleled chemiluminescence measurements.

摘要

在不同拟杆菌属细菌存在的情况下,检测了人类多形核白细胞对奇异变形杆菌的杀伤作用。体外实验表明,厌氧菌会干扰需氧菌的杀伤。然而,这种抑制作用并非所有拟杆菌属细菌都具有。牙龈卟啉单胞菌W83在所测试的5株拟杆菌菌株中表现出最大的抑制作用。牙龈卟啉单胞菌的培养上清液可抑制奇异变形杆菌的杀伤,但洗涤后的细胞则无此作用。在牙龈卟啉单胞菌的上清液中发现了两个导致抑制作用的因素。一个是热稳定的,分子量小于3500,可抑制白细胞的杀伤活性,另一个是热不稳定的,可部分灭活补体系统。杀伤实验与化学发光测量结果平行。

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