Altered gut microbiota correlate with different immune responses to HAART in HIV-infected individuals
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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
Xie Y, Sun J, Wei L, Jiang H, Hu C, Yang J, Huang Y, Ruan B, Zhu B
Journal
BMC microbiology
Year
2021
Keywords:
Gut microbiota, HAART, HIV-1, Immune activation, Immunological non-responders, Immunological responders
BACKGROUND: Although gut microbiota dysbiosis has been reported in HIV infected individuals recently, the relationship between the gut microbiota and immune activation in patients with different immune responses to highly active antiretroviral therapy (HAART) is still not well understood. Gut microbiota and immune activation were studied in 36 non-HIV-infected subjects (healthy controls) and 58 HIV-infected individuals, including 28 immunological responders (IR) and 30 immunological non-responders (INR) (≥500 and < 200 CD4+ T-cell counts/μl after 2 years of HIV-1 viral suppression respectively) without comorbidities. RESULTS: Metagenome sequencing revealed that HIV-infected immunological responders and immunological non-responders could not recover completely from the gut microbiota dysbiosis. At a 97% similarity level, the relative abundances of Fusobacterium, Ruminococcus gnavus and Megamonas were greater, whereas Faecalibacterium, Alistipes, Bifidobacterium, Eubacterium rectale and Roseburia were more depleted in the IR and INR groups than those in the healthy controls. Ruminococcaceae and Alistipes were positively correlated with nadir and current CD4+ T-cell counts, but negatively correlated with CD8 + CD57+ T-cell counts. Inflammation markers and translocation biomarkers (LPS) levels were positively correlated with the abundances of genera Ruminococcus and Fusobacterium but were negatively correlated with the genus Faecalibacterium. The relative abundances of Escherichia-Shigella and Blautia were significantly higher in the IR than those in the INR group. Escherichia-Shigella were negatively correlated with the CD4/CD8 ratio but positively correlated with the amount of CD8 + CD57+ T-cells. Roseburia and Blautia were negatively associated with nadir CD4+ T-cell and positively associated with CD8 + CD57+ T-cell counts. CONCLUSIONS: Gut microbiota dysbiosis may be one of the factors contributing to different immune responses and treatment outcomes to HAART.
Experiment 1
Reviewed Marked as Reviewed by Peace Sandy on 2024-10-22
Curated date: 2024/10/03
Curator:
Revision editor(s):
Subjects
- Location of subjects
- China
- 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
- Feces Cow dung,Cow pat,Droppings,Dung,Excrement,Excreta,Faeces,Fecal material,Fecal matter,Fewmet,Frass,Guano,Matières fécales@fr,Merde@fr,Ordure,Partie de la merde@fr,Piece of shit,Porción de mierda@es,Portion of dung,Portion of excrement,Portion of faeces,Portion of fecal material,Portion of fecal matter,Portion of feces,Portion of guano,Portion of scat,Portionem cacas,Scat,Spoor,Spraint,Stool,Teil der fäkalien@de,Feces,feces
- 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 HIV negative individual
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- Immunological Responder (IR) HIV infected individual
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Immunological Responder HIV infected individual(IR), were defined as patients whose CD4+ T-cell counts/μl equal or is more than 500 or less than 200 after 2 years of receiving complete viral suppression therapy respectively. All HIV-positive subjects were on two nucleoside reverse transcriptase inhibitors (NRTIs) + nonnucleoside reverse transcriptase inhibitors (NNRTIs) or the protease inhibitor-based therapy: Zidovudine/Tenofovir Disoproxil Fumarate (AZT/TDF) + Lamivudine (3TC) + Efavirenz (EFV) or Lopinavir/ritonavir (LPV/r).
- Group 0 sample size Number of subjects in the control (unexposed) group
- 36
- Group 1 sample size Number of subjects in the case (exposed) group
- 28
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 6 months Other exclusion criteria include: Candidates having age over 60 years old; having opportunistic infection; having hepatitis B or C infection; having used rectally administered medications within 48 h before selection; BMI > 30; having a history of inflammatory bowel disease (IBD); having active inflammation affecting the gastro intestines.
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
- 3
- Matched on Factors on which subjects have been matched on in a case-control study
- age, body mass index
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Reviewed Marked as Reviewed by Peace Sandy on 2024-10-22
Source: Additional file 4, figure S4b
Description: Taxonomic differences of fecal microbiota between the immunological responders (IR), and healthy controls (Control) group.
Abundance in Group 1: increased abundance in
Revision editor(s): Patience Onah, WikiWorks
Signature 2
Reviewed Marked as Reviewed by Peace Sandy on 2024-10-22
Source: Additional file 4, figure S4b
Description: Taxonomic differences of fecal microbiota between the immunological non-responders (INR) and healthy controls (Control) group.
Abundance in Group 1: decreased abundance in
Revision editor(s): Patience Onah, WikiWorks
Experiment 2
Reviewed Marked as Reviewed by Peace Sandy on 2024-10-22
Curated date: 2024/10/03
Curator: Patience Onah
Revision editor(s): Patience Onah, Peace Sandy, WikiWorks
Differences from previous experiment shown
Subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- immunological non-responders (INR) HIV infected individual
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- immunological non-responders (INR), and INR were defined as patients whose CD4+ T-cell counts/μl equal or is more than 500 or less than 200 after 2 years of receiving complete viral suppression therapy respectively. All HIV-positive subjects were on two nucleoside reverse transcriptase inhibitors (NRTIs) + nonnucleoside reverse transcriptase inhibitors (NNRTIs) or the protease inhibitor-based therapy: Zidovudine/Tenofovir Disoproxil Fumarate (AZT/TDF) + Lamivudine (3TC) + Efavirenz (EFV) or Lopinavir/ritonavir (LPV/r).
- Group 1 sample size Number of subjects in the case (exposed) group
- 30
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 6 months. Other exclusion criteria include: Candidates having age over 60 years old; having opportunistic infection; having hepatitis B or C infection; having used rectally administered medications within 48 h before selection; BMI > 30; having a history of inflammatory bowel disease (IBD); having active inflammation affecting the gastro intestines.
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Reviewed Marked as Reviewed by Peace Sandy on 2024-10-22
Source: Additional file 4, figure S4 d
Description: Taxonomic differences of fecal microbiota between the, immunological non-responders (INR) and healthy controls (Control) group.
Abundance in Group 1: increased abundance in immunological non-responders (INR) HIV infected individual
| NCBI | Quality Control | Links |
|---|---|---|
| Fusobacterium | ||
| Megasphaera | ||
| Subdoligranulum | ||
| Parasutterella | ||
| Alloprevotella | ||
| Ruminococcaceae bacterium UCG-005 | ||
| Mediterraneibacter gnavus |
Revision editor(s): Patience Onah, WikiWorks
Signature 6
Reviewed Marked as Reviewed by Peace Sandy on 2024-10-22
Source: Additional file 4, figure S4 d
Description: Taxonomic differences of fecal microbiota between the immunological non-responders (INR) and healthy controls (Control) group.
Abundance in Group 1: decreased abundance in immunological non-responders (INR) HIV infected individual
Revision editor(s): Patience Onah, WikiWorks
Experiment 3
Reviewed Marked as Reviewed by Peace Sandy on 2024-10-22
Curated date: 2024/10/11
Curator: Patience Onah
Revision editor(s): Patience Onah, Peace Sandy, WikiWorks
Differences from previous experiment shown
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- immunological non-responders (INR) HIV infected individual
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- Immunological Responder (IR) HIV infected individual
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Immunological Responder HIV infected individual (IR) was defined as patients whose CD4+ T-cell counts/μl equal or is more than 500 or less than 200 after 2 years of receiving complete viral suppression therapy respectively. All HIV-positive subjects were on two nucleoside reverse transcriptase inhibitors (NRTIs) + nonnucleoside reverse transcriptase inhibitors (NNRTIs) or the protease inhibitor-based therapy: Zidovudine/Tenofovir Disoproxil Fumarate (AZT/TDF) + Lamivudine (3TC) + Efavirenz (EFV) or Lopinavir/ritonavir (LPV/r).
- Group 0 sample size Number of subjects in the control (unexposed) group
- 30
- Group 1 sample size Number of subjects in the case (exposed) group
- 28
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 6 months.
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Needs review
Source: Additional file 4, figure S4 f
Description: Taxonomic differences of fecal microbiota between the immunological non-responders (INR) and Immunological Responder (IR) HIV infected individual.
Abundance in Group 1: increased abundance in Immunological Responder (IR) HIV infected individual
| NCBI | Quality Control | Links |
|---|---|---|
| Solobacterium | ||
| Dielma | ||
| Blautia | ||
| Escherichia/Shigella sp. |
Revision editor(s): Patience Onah, WikiWorks
Signature 2
Needs review
Source: Additional file 4, figure S4 f
Description: Taxonomic differences of fecal microbiota between the immunological non-responders (INR) and Immunological Responder (IR) HIV infected
Abundance in Group 1: decreased abundance in Immunological Responder (IR) HIV infected individual
| NCBI | Quality Control | Links |
|---|---|---|
| Anaerostipes | ||
| Eubacterium ruminantium | ||
| Alloprevotella | ||
| Eubacterium | ||
| Ruminiclostridium sp. |
Revision editor(s): Patience Onah, WikiWorks
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