Uncovering Microbial Composition in Human Breast Cancer Primary Tumour Tissue Using Transcriptomic RNA-seq/Experiment 5

From BugSigDB


Needs review

Curated date: 2025/06/25

Curator: Ecsharp

Revision editor(s): Ecsharp

Subjects

Location of subjects
Slovakia
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
Breast Mamma,Mammary part of chest,Mammary region,Breast,breast
Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Breast cancer breast cancer,breast tumor,cancer of breast,malignant breast neoplasm,malignant breast tumor,malignant neoplasm of breast,malignant neoplasm of the breast,malignant tumor of breast,malignant tumor of the breast,mammary cancer,mammary neoplasm,mammary tumor,primary breast cancer,Breast cancer
Group 0 name Corresponds to the control (unexposed) group for case-control studies
HER2- BC patients
Group 1 name Corresponds to the case (exposed) group for case-control studies
HER2+ BC patients
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Slovakia breast cancer patients with HER2 status (HER+ vs HER-). 1% of cells positive for hormone receptor was used as the cut-off to define hormone receptor positivity and HER2 status.
Group 0 sample size Number of subjects in the control (unexposed) group
14
Group 1 sample size Number of subjects in the case (exposed) group
4

Lab analysis

16S variable region One or more hypervariable region(s) of the bacterial 16S gene
Not specified
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
Kruskall-Wallis
LEfSe
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)?
No
LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
3


Signature 1

Needs review

Curated date: 2025/06/25

Curator: Ecsharp

Revision editor(s): Ecsharp

Source: Figure 4 (C)

Description: Differentially represented taxa in primary tumour tissues of Slovak patients between multiple markers statuses. For all comparisons, LEfSe was run with parameters: LDA > 3 (stricter than default LDA > 2 just for purpose of visualisation), Kruskal Wallis test p-value < 0.05, Wilcoxon test p-value < 0.05. (C) Comparison of the microbiome in primary tumours of patients positive on HER2 marker and negative on HER2 marker status.

Abundance in Group 1: increased abundance in HER2+ BC patients

NCBI Quality ControlLinks
Helicobacter pylori
Musicola paradisiaca
Pseudactinotalea sp. HY158
Paraburkholderia fungorum
Massilia oculi
Burkholderiales
Betaproteobacteria

Revision editor(s): Ecsharp

Signature 2

Needs review

Curated date: 2025/06/25

Curator: Ecsharp

Revision editor(s): Ecsharp

Source: Figure 4 (C)

Description: Differentially represented taxa in primary tumour tissues of Slovak patients between multiple markers statuses. For all comparisons, LEfSe was run with parameters: LDA > 3 (stricter than default LDA > 2 just for purpose of visualisation), Kruskal Wallis test p-value < 0.05, Wilcoxon test p-value < 0.05. (C) Comparison of the microbiome in primary tumours of patients positive on HER2 marker and negative on HER2 marker status.

Abundance in Group 1: decreased abundance in HER2+ BC patients

NCBI Quality ControlLinks
Flavobacteriia
Flavobacteriales
Weeksellaceae
Nocardioides
Deinococci
Deinococcota

Revision editor(s): Ecsharp