A comprehensive analysis of the microbiota composition and host driver gene mutations in colorectal cancer
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Quality control
- Retracted paper
- Contamination issues suspected
- Batch effect issues suspected
- Uncontrolled confounding suspected
- Results are suspect (various reasons)
- Tags applied
Experiment 1
Curated date: 2022/08/28
Curator: Mary Bearkland
Revision editor(s): WikiWorks, Fatima, Rimsha, Mary Bearkland, Peace Sandy
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
- Colorectal adenocarcinoma adenocarcinoma of large bowel,adenocarcinoma of large intestine,adenocarcinoma of the large bowel,adenocarcinoma of the large intestine,colorectal (colon or rectal) adenocarcinoma,colorectal adenocarcinoma,colorectum adenocarcinoma,large bowel adenocarcinoma,large intestine adenocarcinoma,Colorectal adenocarcinoma
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- healthy controls
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- colorectal cancer patients
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- diagnosed of colorectal cancer by colonoscopy and histopathology
- Group 0 sample size Number of subjects in the control (unexposed) group
- 20
- Group 1 sample size Number of subjects in the case (exposed) group
- 44
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 1 month
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)?
- No
- LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
- 4
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- decreased
Signature 1
Source: Figures 4b
Description: Fig. 4 Difference of fecal microbiota in CRC patients and HC. b. LDA score computed from features differentially abundant in CRC and HC fecal samples. The criteria for feature selection were LDA score > 4, p < 0.05, Green and red represent the HC group and CRC group, respectively.
Abundance in Group 1: increased abundance in colorectal cancer patients
NCBI | Quality Control | Links |
---|---|---|
Bacteroides | ||
Bifidobacterium | ||
Shigella | ||
Escherichia |
Revision editor(s): Mary Bearkland
Signature 2
Source: Figures 4b
Description: Fig. 4 Difference of fecal microbiota in CRC patients and HC. b. LDA score computed from features differentially abundant in CRC and HC fecal samples. The criteria for feature selection were LDA score > 4, p < 0.05, Green and red represent the HC group and CRC group, respectively.
Abundance in Group 1: decreased abundance in colorectal cancer patients
NCBI | Quality Control | Links |
---|---|---|
Collinsella | ||
Coprobacillus | ||
Faecalibacterium | ||
Romboutsia | ||
Streptococcus | ||
Agathobacter |
Revision editor(s): Mary Bearkland, Fatima
Experiment 2
Curated date: 2022/08/28
Curator: Mary Bearkland
Revision editor(s): WikiWorks, LGeistlinger, Fatima, Mary Bearkland, Victoria
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- colorectal cancer patients without KRAS mutation
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- colorectal cancer patients with KRAS mutation
- Group 0 sample size Number of subjects in the control (unexposed) group
- 21
- 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)
- No antibiotics for one month prior to surgery (fecal sample was taken the night before surgery)
Lab analysis
Statistical Analysis
Signature 1
Source: Figure 5a
Description: LEfSe was used to compare the microbial variation of the KRAS
Abundance in Group 1: increased abundance in colorectal cancer patients with KRAS mutation
Revision editor(s): Mary Bearkland, Fatima, Merit
Signature 2
Source: Figure 5a
Description: LEfSe was used to compare the microbial variation of the KRAS
Abundance in Group 1: decreased abundance in colorectal cancer patients with KRAS mutation
Revision editor(s): Mary Bearkland, Fatima
Experiment 3
Curated date: 2022/09/02
Curator: Mary Bearkland
Revision editor(s): WikiWorks, Claregrieve1, Mary Bearkland, Atrayees, Victoria
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- colorectal cancer patients without TP53 mutation
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- colorectal cancer patients with TP53 mutation
- Group 0 sample size Number of subjects in the control (unexposed) group
- 11
- Group 1 sample size Number of subjects in the case (exposed) group
- 28
Lab analysis
Statistical Analysis
Signature 1
Source: Figure 5b
Description: LEfSe was used to compare the microbial variation of the TP53
Abundance in Group 1: increased abundance in colorectal cancer patients with TP53 mutation
NCBI | Quality Control | Links |
---|---|---|
Eubacterium coprostanoligenes |
Revision editor(s): Mary Bearkland
Signature 2
Curated date: 2022/09/02
Curator: Mary Bearkland
Revision editor(s): Mary Bearkland, Merit, Atrayees
Source: Figure 5b
Description: LEfSe was used to compare the microbial variation of the TP53
Abundance in Group 1: decreased abundance in colorectal cancer patients with TP53 mutation
NCBI | Quality Control | Links |
---|---|---|
Oscillospiraceae | ||
unclassified Oscillospiraceae |
Revision editor(s): Mary Bearkland, Merit, Atrayees
Experiment 4
Curated date: 2022/09/02
Curator: Mary Bearkland
Revision editor(s): WikiWorks, Claregrieve1, Mary Bearkland, Atrayees, Victoria
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- colorectal cancer patients without APC mutation
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- colorectal cancer patients with APC mutation
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- diagnosed with colorectal cancer by colonoscopy and histopathology
- Group 0 sample size Number of subjects in the control (unexposed) group
- 9
- Group 1 sample size Number of subjects in the case (exposed) group
- 30
Lab analysis
Statistical Analysis
Signature 1
Source: Figure 5c
Description: LEfSe was used to compare the microbial variation of the APC groups.
Abundance in Group 1: increased abundance in colorectal cancer patients with APC mutation
NCBI | Quality Control | Links |
---|---|---|
Actinomyces | ||
Actinomycetaceae | ||
Actinomycetales |
Revision editor(s): Mary Bearkland
Experiment 5
Curated date: 2022/09/02
Curator: Mary Bearkland
Revision editor(s): WikiWorks, Claregrieve1, Mary Bearkland, Atrayees, Victoria
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- colorectal cancer patients without PIK3CA mutation
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- colorectal cancer patients with PIK3CA mutation
- Group 0 sample size Number of subjects in the control (unexposed) group
- 33
- Group 1 sample size Number of subjects in the case (exposed) group
- 6
Lab analysis
Statistical Analysis
Signature 1
Source: Figure 5d
Description: LEfSe was used to compare the microbial variation of the PIK3CA groups.
Abundance in Group 1: decreased abundance in colorectal cancer patients with PIK3CA mutation
NCBI | Quality Control | Links |
---|---|---|
Actinomycetales | ||
unclassified Actinomyces | ||
Actinomycetaceae | ||
Actinomyces |
Revision editor(s): Mary Bearkland
Signature 2
Source: Figure 5d
Description: LEfSe was used to compare the microbial variation of the PIK3CA groups.
Abundance in Group 1: increased abundance in colorectal cancer patients with PIK3CA mutation
Revision editor(s): Mary Bearkland, Fatima