Internalin A can mediate phagocytosis of Listeria monocytogenes by mouse macrophage cell lines.
Internalin A can mediate phagocytosis of Listeria monocytogenes by mouse macrophage cell lines.
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Internalin A 可以介导小鼠巨噬细胞系对单核细胞增生李斯特氏菌的吞噬作用。
DOI:
10.1002/jlb.60.5.603
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发表时间:
1996
影响因子:
5.5
通讯作者:
Potter,TA
中科院分区:
文献类型:
--
作者:
Sawyer,RT;Drevets,DA;Campbell,PA;Potter,TA
Listeria monocytogenesinternalin A (InlA) is a surface protein that mediates the attachment ofListeriato, and invasion of, hepatocytes, epithelial, and endothelial cells. In this study, we tested whether InlA could also mediate phagocytosis ofL. monocytogenesby the non‐listericidal mouse macrophage cell lines J774A.1 and H36.12j. Recombinant InlA (rInlA) was used to derive mouse monoclonal anti‐InlA antibodies (mAb) and rabbit anti‐InlA antibodies. Fluorescence microscopy demonstrated that these anti‐InlA antibodies reacted with wild‐typeL. monocytogenes,L. ivanovii, and L.innocua+, a mutant transformed with theinlABoperon that expresses surface InlA but failed to react with Bug 8, an InlA/InlB‐negative transposon mutant ofL. monocytogenesor with non‐invasiveListeriasp. Fluorescence microscopy, radiolabeling, and flow cytometry showed that rInlA bound specifically to both macrophage cell lines. Incubation of macrophages and wild‐typeL. monocytogenesin the presence of rInlA or pretreatment ofListeriawith anti‐InlA antibodies specifically inhibited, by at least 50%, the phagocytosis ofListeriaby both of these cells. By comparison, treatment with these reagents failed to affect the phagocytosis ofStreptococcus pyogenesby either macrophage cell line nor did these reagents alter the ability of macrophages to internalize wild‐typeL. monocytogenes. We found that Bug 8, but not wild‐typeL. monocytogenes, failed to grow within both of these non‐listericidal macrophage cell lines. In contrast to infection by wild‐typeL. monocytogenes, Bug 8 was rapidly eliminated from the spleens of both C57B1/6 and DBA/2 mice. Data presented here show that only invasiveListeriasp. have surface InlA and thatL. monocytogenescan enter non‐listericidal macrophage cell lines by binding of bacterial InlA to the macrophage cell surface.J. Leukoc. Biol. 60: 603–610; 1996.
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影响因子:
4.4
作者:
D. Drevets;P. Leenen;P. Campbell
通讯作者:
D. Drevets;P. Leenen;P. Campbell
影响因子:
56.9
作者:
MILLER, JF;MEKALANOS, JJ;FALKOW, S
通讯作者:
FALKOW, S
DOI:
10.1073/pnas.91.5.1863
发表时间:
1994-03-01
影响因子:
11.1
作者:
DUNNE, DW;RESNICK, D;JOINER, KA
通讯作者:
JOINER, KA
影响因子:
3.1
作者:
S. Köhler;M. Leimeister;T. Chakraborty;F. Lottspeich;W. Goebel
通讯作者:
W. Goebel
影响因子:
3.1
作者:
I. Karunasagar;Georg Krohne;Werner Goebel
通讯作者:
Werner Goebel