An Ixodes scapularis protein required for survival of Anaplasma phagocytophilum in tick salivary glands

An Ixodes scapularis protein required for survival of Anaplasma phagocytophilum in tick salivary glands
复制标题

蜱唾液腺中嗜吞噬细胞无形体存活所需的肩胛硬蜱蛋白

DOI:
--
复制
发表时间:
2006
影响因子:
15.3
通讯作者:
E. Fikrig
E. Fikrig
中科院分区:
医学1区
文献类型:
--
作者:
B. Sukumaran;S. Narasimhan;John F Anderson;K. Deponte;N. Marcantonio;Manoj N. Krishnan;D. Fish;S. Telford;F. Kantor;E. Fikrig

文献摘要

参考文献

被引文献

相似文献

嗜吞噬细胞无原体是人类无原体病的病原体,无原体病是美国第二常见的蜱传疾病。这种病原体与立克次体、埃利希体和无原体属的专性细胞内生物密切相关,持续存在于蜱虫和哺乳动物宿主中;然而,节肢动物的生存机制尚不清楚。我们现在表明,在载体膨胀期间,嗜吞噬胞芽胞杆菌诱导肩胛骨棘猴salp16基因在节肢动物唾液腺中的表达。RNA干扰介导的salp16基因表达的沉默干扰了嗜吞噬细胞单胞虫进入以嗜吞噬细胞单胞虫感染小鼠为食的蜱的存活。嗜吞噬细胞芽胞杆菌正常地从嗜吞噬细胞芽胞杆菌感染的小鼠迁移到缺乏salp16的大腹便便蜱的肠道中,但进入蜱体内的细菌中高达90%不能成功地感染肩胛骨嗜吞噬细胞芽胞杆菌的唾液腺。这些数据证明了病原体对蜱虫唾液蛋白在节肢动物体内持续存在的特殊要求,并为理解立克次体样病原体如何在媒介中维持提供了范例。
Anaplasma phagocytophilum is the agent of human anaplasmosis, the second most common tick-borne illness in the United States. This pathogen, which is closely related to obligate intracellular organisms in the genera Rickettsia, Ehrlichia, and Anaplasma, persists in ticks and mammalian hosts; however, the mechanisms for survival in the arthropod are not known. We now show that A. phagocytophilum induces expression of the Ixodes scapularis salp16 gene in the arthropod salivary glands during vector engorgement. RNA interference–mediated silencing of salp16 gene expression interfered with the survival of A. phagocytophilum that entered ticks fed on A. phagocytophilum–infected mice. A. phagocytophilum migrated normally from A. phagocytophilum–infected mice to the gut of engorging salp16-deficient ticks, but up to 90% of the bacteria that entered the ticks were not able to successfully infect I. scapularis salivary glands. These data demonstrate the specific requirement of a pathogen for a tick salivary protein to persist within the arthropod and provide a paradigm for understanding how Rickettsia-like pathogens are maintained within vectors.
人粒细胞埃利希体病的病原体存在于内涵体隔室中。
DOI: 10.1172/jci1544
发表时间: 1998
期刊: The Journal of clinical investigation
影响因子: --
作者:
Webster,P;IJdo,JW;Chicoine,LM;Fikrig,E
通讯作者: Fikrig,E
DOI: 10.1073/pnas.93.12.6209
发表时间: 1996-06-11
影响因子: 11.1
作者:
Telford, SR;Dawson, JE;Persing, DH
通讯作者: Persing, DH
DOI: 10.1086/323351
发表时间: 2001-10-15
影响因子: 6.4
作者:
Das, S;Banerjee, G;Fikrig, E
通讯作者: Fikrig, E
伯氏疏螺旋体和人粒细胞埃利希体病病原体在宿主-载体界面的获取动态。
DOI: 10.1089/153036601316977750
发表时间: 2001
期刊: Vector borne and zoonotic diseases (Larchmont, N.Y.)
影响因子: --
作者:
Hodzic,E;Borjesson,DL;Feng,S;Barthold,SW
通讯作者: Barthold,SW
DOI: 10.1126/science.8503006
发表时间: 1993-06-11
期刊: SCIENCE
影响因子: 56.9
作者:
BARBOUR, AG;FISH, D
通讯作者: FISH, D