Eremeeva M, Balayeva N, Roux V, Ignatovich V, Kotsinjan M, Raoult D
Unité des Rickettsies, Centre National de la Recherche Scientifique EP J0054, Faculté de Médecine, Marseille, France.
J Clin Microbiol. 1995 Oct;33(10):2738-44. doi: 10.1128/jcm.33.10.2738-2744.1995.
Strain S, a spotted fever group (SFG) rickettsia isolated from Rhipicephalus sanguineus ticks collected in Armenia, was identified. Microimmunofluorescence, sodium dodecyl sulfate-polyacrylamide gel protein electrophoresis and Western immunoblotting, PCR and then restriction fragment length polymorphism analysis, pulsed-field gel electrophoresis, and 16S rRNA gene sequencing were used to compare strain S with reference isolates. Strain S was found to possess proteinic, antigenic, and genomic patterns which were unique among SFG rickettsiae. Strain S is characterized by its high degree of pathogenicity for experimental animals, but its role as a potential human pathogen should be determined. The role of R. sanguineus ticks in the epidemiology of SFG rickettsiae is discussed.
从亚美尼亚采集的血红扇头蜱中分离出一种斑点热群(SFG)立克次体菌株S,并对其进行了鉴定。运用微量免疫荧光法、十二烷基硫酸钠 - 聚丙烯酰胺凝胶蛋白质电泳和蛋白质免疫印迹法、聚合酶链反应以及随后的限制性片段长度多态性分析、脉冲场凝胶电泳和16S rRNA基因测序,将菌株S与参考分离株进行比较。结果发现菌株S具有在SFG立克次体中独一无二的蛋白质、抗原和基因组模式。菌株S的特点是对实验动物具有高度致病性,但其作为潜在人类病原体的作用尚待确定。文中还讨论了血红扇头蜱在SFG立克次体流行病学中的作用。