HPV/Chlamydia trachomatis co-infection: metagenomic analysis of cervical microbiota in asymptomatic women
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Study information
-
Quality control
- Retracted paper
- Contamination issues suspected
- Batch effect issues suspected
- Uncontrolled confounding suspected
- Results are suspect (various reasons)
- Tags applied
study design
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Di Pietro M, Filardo S, Porpora MG, Recine N, Latino MA, Sessa R
Journal
The new microbiologica
Year
2018
Keywords:
Cervical microbiota, Chlamydia trachomatis, Coinfection, HPV, Metagenomic analysis
HPV and Chlamydia trachomatis are the most common causes of sexually transmitted diseases worldwide. Most infections are asymptomatic and left untreated lead to severe reproductive tract sequelae such as cervical cancer and infertility. Interestingly, C. trachomatis may also increase the susceptibility to HPV infection as well as contribute to viral persistence. Recently, a growing body of evidence has suggested that the composition of the cervico-vaginal microbiota plays a key role in the susceptibility and outcome of genital infections caused by several pathogens, including HPV and C. trachomatis. The aim of our study was to undertake a metagenomic analysis of sequenced 16s rRNA gene amplicons to characterize the cervical microbiota from asymptomatic women with HPV/C. trachomatis co-infection. The composition of the cervical microbiota from HPV-positive or C. trachomatis-positive women was also analysed. The main finding of our study showed that the cervical microbiota in HPV/C. trachomatis co-infected women had a higher microbial diversity than the cervical microbiota in healthy controls (p<0.05). In addition, Aerococcus christensenii was associated with C. trachomatis infection. In conclusion, the increased cervical microbial diversity observed in HPV/C. trachomatis co-infected women and the detection of potential microbiological biomarkers of C. trachomatis infection will open the way to innovative approaches that may be helpful to identify women at risk of co-infection.
Experiment 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Subjects
- Location of subjects
- Italy
- Host species Species from which microbiome was sampled. Contact us to have more species added.
- Homo sapiens
- Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
- Endocervix
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- healthy control
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- patient with chlamydia infection
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- patient with Chlamydia infection
- Group 0 sample size Number of subjects in the control (unexposed) group
- 7
- Group 1 sample size Number of subjects in the case (exposed) group
- 7
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V3-V4
- Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
- Illumina
Statistical Analysis
- Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
- relative abundances
- Statistical test
- LEfSe
- Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
- 0.05
- MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
- Yes
- LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
- 2
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- increased
Signature 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 3
Description: LEfSe results on cervical microbiota in C. trachomatis-positive women compared to HPV-positive women or healthy controls.
Abundance in Group 1: increased abundance in patient with chlamydia infection
| NCBI | Quality Control | Links |
|---|---|---|
| Aerococcus | ||
| Aerococcaceae | ||
| Aerococcus christensenii |
Revision editor(s): WikiWorks
Signature 2
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 3
Description: LEfSe results on cervical microbiota in C. trachomatis-positive women compared to HPV-positive women or healthy controls.
Abundance in Group 1: decreased abundance in patient with chlamydia infection
| NCBI | Quality Control | Links |
|---|---|---|
| Lactobacillales | ||
| Lactobacillus | ||
| Lactobacillaceae | ||
| Bacillota | ||
| Bacilli |
Revision editor(s): WikiWorks
Experiment 2
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Differences from previous experiment shown
Subjects
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- Chlamydophila infectious disease Chlamydia caused disease or disorder,Chlamydia disease or disorder,Chlamydia infection,Chlamydia infectious disease,chlamydia infectious disease,Chlamydophila caused disease or disorder,Chlamydophila disease or disorder,Chlamydophila Infections,infection, Chlamydia,infections, Chlamydia,Chlamydophila infectious disease,chlamydophila infectious disease
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- HPV positive women
- Group 1 sample size Number of subjects in the case (exposed) group
- 8
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- increased
Signature 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 3
Description: LEfSe results on cervical microbiota in C. trachomatis-positive women compared to HPV-positive women or healthy controls.
Abundance in Group 1: increased abundance in patient with chlamydia infection
| NCBI | Quality Control | Links |
|---|---|---|
| Chlamydiota | ||
| Chlamydiaceae | ||
| Chlamydiia | ||
| Chlamydiales | ||
| Chlamydia | ||
| Chlamydia trachomatis |
Revision editor(s): WikiWorks
Signature 2
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 3
Description: LEfSe results on cervical microbiota in C. trachomatis-positive women compared to HPV-positive women or healthy controls.
Abundance in Group 1: decreased abundance in patient with chlamydia infection
| NCBI | Quality Control | Links |
|---|---|---|
| Lactobacillaceae | ||
| Lactobacillus | ||
| Bacilli | ||
| Lactobacillales | ||
| Bacillota |
Revision editor(s): WikiWorks
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