Comparison of iron uptake in different Helicobacter species

被引:34
作者
Dhaenens, L [1 ]
Szczebara, F [1 ]
Van Nieuwenhuyse, S [1 ]
Husson, MO [1 ]
机构
[1] Fac Med Henri Warembourg, Lab Bacteriol Hyg, F-59045 Lille, France
关键词
Helicobacter; ecological niche; iron uptake; siderophore; lactoferrin; heme;
D O I
10.1016/S0923-2508(99)00109-6
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Comparison of iron uptake of four Helicobacter species (Helicobacter pylori, Helicobacter felis, Helicobacter acinonyx, and Helicobacter mustelae), associated with various degrees of gastritis in their respective host, with five other species which colonize the intestinal tract of various animals (Helicobacter fennelliae, Helicobacter cinaedi, Helicobacter muridarum, Helicobacter bilis, and Helicobacter hepaticus), demonstrated that the iron acquisition system differed according to the ecological niche of the organism. Gastric Helicobacter, except for H. pylori, which used iron from human lactoferrin, were nonsiderophore-producing organisms and were only able to obtain iron from heme and hemoglobin. Nongastric Helicobacter produced siderophores and were able to use for growth a wide range of iron sources (bovine and human lactoferrin and transferrin, heme, hemoglobin). (C) 1999 Editions scientifiques et medicales Elsevier SAS.
引用
收藏
页码:475 / 481
页数:7
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