Neisseria cinerea isolates can adhere to human epithelial cells by type IV pilus-independent mechanisms.

Neisseria cinerea isolates can adhere to human epithelial cells by type IV pilus-independent mechanisms.
复制标题

灰奈瑟菌分离株可以通过 IV 型菌毛独立机制粘附到人上皮细胞上。

DOI:
10.1099/mic.0.000248
复制
发表时间:
2016
期刊:
Microbiology (Reading, England)
影响因子:
--
通讯作者:
Wörmann ME
Wörmann ME
中科院分区:
--
文献类型:
--
作者:
Wörmann ME

文献摘要

参考文献

被引文献

相似文献

在病原学中,IV型菌毛(TFP)在宿主-病原体相互作用中起主要作用。TFP通过菌毛-菌毛相互作用介导细菌在细胞表面的初始附着和微集落的形成。基于基因组分析,许多非致病奈瑟菌种被预测表达TFP,但除了对长链奈瑟氏菌的研究外,对这些生物中菌毛的形成和功能知之甚少。在这里,我们分析了菌毛蛋白在灰奈瑟菌中的表达和TFP的作用。这种非致病物种与病原体脑膜炎奈瑟氏菌有密切的分类关系,也定植于人类口咽腔。通过对非致病奈瑟菌基因组的分析,我们鉴定了两个与TopilE同源的基因,该基因编码主要的Pilin ofn。脑膜炎。我们展示了这两个基因中的哪一个是TFP表达所必需的。与其他奈瑟氏菌类似,该物种中的TFP是DNA能力所必需的。然而,与脑膜炎球菌不同,菌毛蛋白基因的缺失并不影响N的关联性。放映人体上皮细胞,证明了。CinereaSec可通过TFP非依赖机制与人上皮细胞黏附。
In pathogenicNeisseriaspecies the type IV pili (Tfp) are of primary importance in host–pathogen interactions. Tfp mediate initial bacterial attachment to cell surfaces and formation of microcolonies via pilus–pilus interactions. Based on genome analysis, many non-pathogenicNeisseriaspecies are predicted to express Tfp, but aside from studies onNeisseria elongata, relatively little is known about the formation and function of pili in these organisms. Here, we have analysed pilin expression and the role of Tfp inNeisseria cinerea. This non-pathogenic species shares a close taxonomic relationship to the pathogenNeisseria meningitidisand also colonizes the human oropharyngeal cavity. Through analysis of non-pathogenicNeisseriagenomes we identified two genes with homology topilE, which encodes the major pilin ofN. meningitidis. We show which of the two genes is required for Tfp expression inN. cinereaand that Tfp in this species are required for DNA competence, similar to otherNeisseria. However, in contrast to the meningococcus, deletion of the pilin gene did not impact the association ofN. cinereato human epithelial cells, demonstrating thatN. cinereaisolates can adhere to human epithelial cells by Tfp-independent mechanisms.
DOI: 10.1016/j.vaccine.2010.04.065
发表时间: 2010-07-05
期刊: VACCINE
影响因子: 5.5
作者:
Cehovin, Ana;Winterbotham, Megan;Pelicic, Vladimir
通讯作者: Pelicic, Vladimir
DOI: 10.1111/j.1365-2958.1993.tb00972.x
发表时间: 1993-12-01
影响因子: 3.6
作者:
VIRJI, M;SAUNDERS, JR;FERGUSON, DJP
通讯作者: FERGUSON, DJP
DOI: 10.1128/mbio.00163-13
发表时间: 2013-06-11
期刊: mBio
影响因子: 6.4
作者:
Muzzi A;Mora M;Pizza M;Rappuoli R;Donati C
通讯作者: Donati C
共生奈瑟菌中病原体样 Opa 粘附素的表达:遗传和功能分析
DOI: --
发表时间: 2001
影响因子: 3.4
作者:
M. Toleman;E. Aho;M. Virji
通讯作者: M. Virji
DOI: 10.1111/j.1365-2958.2006.05261.x
发表时间: 2006-08-01
影响因子: 3.6
作者:
Scarselli, Maria;Serruto, Davide;Arico, Beatrice
通讯作者: Arico, Beatrice