Cervicovaginal Fungi and Bacteria Associated With Cervical Intraepithelial Neoplasia and High-Risk Human Papillomavirus Infections in a Hispanic Population
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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
Godoy-Vitorino F, Romaguera J, Zhao C, Vargas-Robles D, Ortiz-Morales G, Vázquez-Sánchez F, Sanchez-Vázquez M, de la Garza-Casillas M, Martinez-Ferrer M, White JR, Bittinger K, Dominguez-Bello MG, Blaser MJ
Journal
Frontiers in microbiology
Year
2018
Keywords:
16S rRNA, ITS2, cervical cancer, cervicovaginal microbiota, fungi
The human cervicovaginal microbiota resides at an interface between the host and the environment and may affect susceptibility to disease. Puerto Rican women have high human papillomavirus (HPV) infection and cervical cancer rates. We hypothesized that the population structure of the cervicovaginal bacterial and fungal biota changed with cervical squamous intraepithelial lesions and HPV infections. DNA was extracted from cervix, introitus, and anal sites of 62 patients attending high-risk San Juan clinics. The 16S rRNA V4 region and ITS-2 fungal regions were amplified and sequenced using Illumina technology. HPV genotyping was determined by reverse hybridization with the HPV SPF10-LiPA25 kit. HPV prevalence was 84% of which ∼44% subjects were infected with high-risk HPV, ∼35% were co-infected with as many as 9 HPV types and ∼5% were infected with exclusively low-risk HPV types. HPV diversity did not change with cervical dysplasia. Cervical bacteria were more diverse in patients with CIN3 pre-cancerous lesions. We found enrichment of Atopobium vaginae and Gardnerella vaginalis in patients with CIN3 lesions. We found no significant bacterial biomarkers associated with HPV infections. Fungal diversity was significantly higher in cervical samples with high-risk HPV and introitus samples of patients with Atypical Squamous Cells of Undetermined Significance (ASCUS). Fungal biomarker signatures for vagina and cervix include Sporidiobolaceae and Sacharomyces for ASCUS, and Malassezia for high-risk HPV infections. Our combined data suggests that specific cervicovaginal bacterial and fungal populations are related to the host epithelial microenvironment, and could play roles in cervical dysplasia.
Experiment 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Subjects
- Location of subjects
- United States of America
- Host species Species from which microbiome was sampled (if applicable)
- Homo sapiens
- Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
- Vagina Distal oviductal region,Distal portion of oviduct,Vaginae,Vagina
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- cervical glandular intraepithelial neoplasia , human papilloma virus infection cervical glandular intraepithelial neoplasia,HPV,Human Papilloma Virus Infection,Human papilloma Virus infection,human papilloma virus infection,Human papillomavirus caused disease or disorder,Human papillomavirus disease or disorder,Human Papillomavirus Infection,Human Papillomavirus infection,Human papillomavirus infectious disease
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- Atypical Squamous Cells of Undetermined Significance
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- Low Grade Squamous Intraepithelial Lesion
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- low grade squamous intraepithelial lesion
- Group 0 sample size Number of subjects in the control (unexposed) group
- 6
- Group 1 sample size Number of subjects in the case (exposed) group
- 18
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 2 months
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- -V2
- Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
- Illumina
Statistical Analysis
- Statistical test
- Mann-Whitney (Wilcoxon)
- 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
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Richness Number of species
- unchanged
Signature 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 8
Description: Fungal biomarker signatures in the 58 introitus samples
Abundance in Group 1: decreased abundance in Low Grade Squamous Intraepithelial Lesion
| NCBI | Quality Control | Links |
|---|---|---|
| Saccharomyces | ||
| Sporidiobolaceae |
Revision editor(s): WikiWorks
Experiment 2
Reviewed Marked as Reviewed by Fatima on 2021/04/20
Differences from previous experiment shown
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- Low risk-HPV
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- High risk-HPV
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- High risk-HPV
- Group 0 sample size Number of subjects in the control (unexposed) group
- 3
- Group 1 sample size Number of subjects in the case (exposed) group
- 27
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- increased
- Richness Number of species
- unchanged
Signature 1
Reviewed Marked as Reviewed by Fatima on 2021/04/20
Source: Figure 8
Description: Fungal biomarker signatures in the 58 introitus samples
Abundance in Group 1: increased abundance in High risk-HPV
| NCBI | Quality Control | Links |
|---|---|---|
| Malassezia |
Revision editor(s): WikiWorks
Signature 2
Reviewed Marked as Reviewed by Fatima on 2021/04/20
Source: Figure 8
Description: Fungal biomarker signatures in the 58 introitus samples
Abundance in Group 1: decreased abundance in High risk-HPV
| NCBI | Quality Control | Links |
|---|---|---|
| Sporidiobolaceae |
Revision editor(s): WikiWorks
Experiment 3
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Differences from previous experiment shown
Subjects
- Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
- Uterine cervix Canalis cervicis uteri,Caudal segment of uterus,Cervical canal,Cervical canal of uterus,Cervix,Cervix of uterus,Cervix uteri,Neck of uterus,Uterine cervix
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- Atypical Squamous Cells of Undetermined Significance
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- Low Grade Squamous Intraepithelial Lesion
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- low grade squamus intraepithelial lesion
- Group 0 sample size Number of subjects in the control (unexposed) group
- 6
- Group 1 sample size Number of subjects in the case (exposed) group
- 18
Lab analysis
Statistical Analysis
Alpha Diversity
- Richness Number of species
- unchanged
Signature 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 8
Description: Fungal biomarker signatures in the 55 cervical samples
Abundance in Group 1: decreased abundance in Low Grade Squamous Intraepithelial Lesion
| NCBI | Quality Control | Links |
|---|---|---|
| Sporidiobolaceae |
Revision editor(s): WikiWorks
Experiment 4
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Differences from previous experiment shown
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- Low risk-HPV
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- High risk-HPV
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- High risk-HPV
- Group 0 sample size Number of subjects in the control (unexposed) group
- 3
- Group 1 sample size Number of subjects in the case (exposed) group
- 27
Lab analysis
Statistical Analysis
Alpha Diversity
- Richness Number of species
- unchanged
Signature 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 8
Description: Fungal biomarker signatures in the 55 cervical samples
Abundance in Group 1: increased abundance in High risk-HPV
| NCBI | Quality Control | Links |
|---|---|---|
| Malassezia |
Revision editor(s): WikiWorks
Signature 2
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 8
Description: Fungal biomarker signatures in the 55 cervical samples
Abundance in Group 1: decreased abundance in High risk-HPV
| NCBI | Quality Control | Links |
|---|---|---|
| Sporidiobolaceae |
Revision editor(s): WikiWorks
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