Genetic diversity in the oral pathogen Porphyromonas gingivalis: molecular mechanisms and biological consequences.

Genetic diversity in the oral pathogen Porphyromonas gingivalis: molecular mechanisms and biological consequences.
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口腔病原体卟啉单胞菌的遗传多样性:分子机制和生物学后果。

DOI:
10.2217/fmb.13.30
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发表时间:
2013-05
影响因子:
3.1
通讯作者:
Wang BY
Wang BY
中科院分区:
生物学3区
文献类型:
--
作者:
Tribble GD;Kerr JE;Wang BY

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牙龈卟啉单胞菌是一种革兰氏阴性厌氧菌,定植在人类口腔。它与牙周炎的发展有关,牙周炎是一种慢性牙周病,影响美国一半的成年人口。为了在口腔中生存,这些细菌必须在与其他细菌物种竞争的牙菌斑生物膜中定殖。牙龈卟啉单胞菌的长期生存需要逃避宿主的免疫反应,同时适应宿主不断变化的生理机能和菌斑生物膜的改变。反映了这种高度可变的生态位,牙龈卟啉单胞菌是一个遗传多样性的物种,在这篇综述中,作者总结了遗传多样性,因为它涉及牙龈卟啉单胞菌的致病性。最近的研究揭示了各种机制,遗传内容的适应性变化可以发生的审查。了解牙龈卟啉单胞菌的遗传可塑性将为了解与牙周病相关的宿主-微生物相互作用提供更好的框架。
Porphyromonas gingivalis is a Gram-negative anaerobic bacterium that colonizes the human oral cavity. It is implicated in the development of periodontitis, a chronic periodontal disease affecting half of the adult population in the USA. To survive in the oral cavity, these bacteria must colonize dental plaque biofilms in competition with other bacterial species. Long-term survival requires P. gingivalis to evade host immune responses, while simultaneously adapting to the changing physiology of the host and to alterations in the plaque biofilm. In reflection of this highly variable niche, P. gingivalis is a genetically diverse species and in this review the authors summarize genetic diversity as it relates to pathogenicity in P. gingivalis. Recent studies revealing a variety of mechanisms by which adaptive changes in genetic content can occur are also reviewed. Understanding the genetic plasticity of P. gingivalis will provide a better framework for understanding the host–microbe interactions associated with periodontal disease.
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