Evidence of an increased pathogenic footprint in the lingual microbiome of untreated HIV infected patients

BMC Microbiology

Research Article

Satya Dandekar¹  Michael D George¹  Sumathi Sankaran-Walters¹  Angeline T Dang²  Sean Cotton³  Bruce J Paster⁴  Chin-Shang Li⁵  Chia-Yuan Michael Lee⁶ 

[1] Dept. of Medical Microbiology and Immunology, University of California,Davis, Davis, CA, USA;Dept. of Medical Microbiology and Immunology, University of California,Davis, Davis, CA, USA;Dept. of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA;Dept. of Molecular Genetics, Forsyth Institute, Cambridge, MA, USA;Dept. of Molecular Genetics, Forsyth Institute, Cambridge, MA, USA;Dept. of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA, USA;Dept. of Public Health Services, University of California, Davis, Davis, CA, USA;Neuroscience Undergraduate Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA, USA;

关键词: HIV;    Microbiota;    Oral mucosa;    Dysbiosis;    CD4+ T cells;    Streptococcus;    Commensal;    Microbiome;    HOMIM;   

DOI  :  10.1186/1471-2180-12-153

 received in 2011-09-26, accepted in 2012-07-12,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundOpportunistic oral infections can be found in over 80% of HIV + patients, often causing debilitating lesions that also contribute to deterioration in nutritional health. Although appreciation for the role that the microbiota is likely to play in the initiation and/or enhancement of oral infections has grown considerably in recent years, little is known about the impact of HIV infection on host-microbe interactions within the oral cavity. In the current study, we characterize modulations in the bacterial composition of the lingual microbiome in patients with treated and untreated HIV infection. Bacterial species profiles were elucidated by microarray assay and compared between untreated HIV infected patients, HIV infected patients receiving antiretroviral therapy, and healthy HIV negative controls. The relationship between clinical parameters (viral burden and CD4+ T cell depletion) and the loss or gain of bacterial species was evaluated in each HIV patient group.ResultsIn untreated HIV infection, elevated viremia was associated with significantly higher proportions of potentially pathogenic Veillonella, Prevotella, Megasphaera, and Campylobacter species in the lingual microbiome than observed in healthy controls. The upsurge in the prevalence of potential pathogens was juxtaposed by diminished representation of commensal Streptococcus and Veillonella species. Colonization of Neisseria flavescens was lower in the lingual microbiome of HIV infected patients receiving antiretroviral therapy than in uninfected controls.ConclusionsOur findings provide novel insights into the potential impact of HIV infection and antiretroviral therapy on the community structure of the oral microbiome, and implicate potential mechanisms that may increase the capacity of non-commensal species to gain a stronger foothold.

【 授权许可】

Unknown   
© Dang et al.; licensee BioMed Central Ltd. 2012. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.