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抗体介导增强嗜肺军团菌诱导的白细胞介素1活性。

Antibody-mediated enhancement of Legionella pneumophila-induced interleukin 1 activity.

作者信息

Widen R H, Newton C A, Klein T W, Friedman H

机构信息

Department of Medical Microbiology and Immunology, University of South Florida College of Medicine, Tampa 33612-4799.

出版信息

Infect Immun. 1993 Oct;61(10):4027-32. doi: 10.1128/iai.61.10.4027-4032.1993.

Abstract

The ability of antibody specific for Legionella pneumophila to enhance the induction of interleukin 1 (IL-1) production by murine peritoneal, splenic, and pulmonary macrophages in response to the bacterium was examined. Two preparations of L. pneumophila were utilized, a formalin-killed whole-cell preparation and viable bacteria. We measured both secreted (sIL-1) and cell membrane-associated (mIL-1) activities after incubation of the macrophages with the bacterial preparations in the presence or absence of the antibody. Both bacterial preparations induced sIL-1 and mIL-1 activities in each of the macrophage populations tested. These activities were generally enhanced by pretreating the bacteria with antibody, with the greatest enhancing activity observed for the formalin-killed preparations at lower doses of bacteria.

摘要

研究了抗嗜肺军团菌抗体增强小鼠腹腔、脾脏和肺巨噬细胞对该细菌应答诱导白细胞介素1(IL-1)产生的能力。使用了两种嗜肺军团菌制剂,一种是福尔马林灭活的全细胞制剂和活细菌。在有或没有抗体存在的情况下,将巨噬细胞与细菌制剂孵育后,我们测量了分泌型(sIL-1)和细胞膜相关型(mIL-1)活性。两种细菌制剂在每个测试的巨噬细胞群体中均诱导了sIL-1和mIL-1活性。通过用抗体预处理细菌,这些活性通常会增强,在较低剂量细菌时,福尔马林灭活制剂观察到最大的增强活性。

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