Foundry120 atlas

Human stool samples of healthy donors and active ulcerative colitis patients under donor fecal microbiota filtrate and microbiota transfer raw Illumina sequence reads of shotgun metagenomes and 16S amplicons

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Dataset overview

Participants 11
Samples 134
Reuse readiness 7.6/10 evidence-backed score

Bacterial and viral assemblages in ulcerative colitis patients following fecal microbiota and fecal filtrate transfer.

Abstract

Fecal microbiota filtrate transfer is discussed as a safe alternative to fecal microbiota transfer (FMT) to treat ulcerative colitis. We investigated modulation of viral and bacterial composition during fecal microbiota filtrate transfer followed by FMT in six patients with active ulcerative colitis (where clinical activity improved in three patients after filtrate transfer) and combined 16S ribosomal RNA gene amplicon sequencing with a virome analysis pipeline including fast viral particle enrichment and metagenome mapping to detect frequencies of 45,033 reference bacteriophage genomes. We showed that after antibiotic treatment and during filtrate transfer, the bacterial community typically adopted a stable composition distinct to that before antibiotic treatment, with no change toward a donor community. FMT in contrast typically changed the bacterial community to a community with similarity to donor(s). There were no indications of an establishment of predominant donor viruses during filtrate transfer but a remodeling of the virome. In contrast, the establishment of donor viruses during FMT correlated with the predicted hosts established during such transfer. Our approach warrants further investigation in a randomized trial to evaluate larger therapeutic interventions in a comparable and efficient manner.

Study facts

Organism
human feces metagenome
Platform
Illumina MiSeq
Age group
adult
Disease groups
Non-IBD controls, Ulcerative colitis
Anatomical sites

Data availability

Specific data assets have not been resolved from the source yet — see the source repository below for the full file listing.

Strengths & limitations for reuse

Strengths

  • Raw reads are advertised
  • Feature/OTU tables are advertised
  • Taxonomic tables are advertised
  • Participant-to-sample mapping is available
  • Participant counts are documented
  • Sample counts are documented
Extraction evidence & provenance

Each extracted field is shown with the source excerpt and location used to resolve it.

Assay

FieldValueEvidence
assay.paired_end True
subjected to 2 × 300-bp Illumina MiSeq sequencing

Section DNA and 16S ribosomal RNA (rRNA) gene amplicon sequencing, offset 6800

assay.platform Illumina MiSeq from source
ENA instrument_model=Illumina MiSeq

Section ENA study report, offset —

assay.primers_reported True
PCR with primers 27Fbif and 338R

Section DNA and 16S ribosomal RNA (rRNA) gene amplicon sequencing, offset 6400

assay.target_region V1–V2
A 2-step PCR-approach was used to amplify the V1–V2 variable region of the 16S rRNA gene

Section DNA and 16S ribosomal RNA (rRNA) gene amplicon sequencing, offset 6200

Cohort

FieldValueEvidence
cohort.age_group adult
Six adult patients with active disease

Section Patients, treatment regimes, and sample collection, offset 1840

cohort.disease_activity_metadata_available True
Six adult patients with active disease

Section Patients, treatment regimes, and sample collection, offset 1800

cohort.non_ibd_controls 5
Fecal microbiota and fecal microbiota filtrate were prepared from healthy donors D1–D5

Section Patients, treatment regimes, and sample collection, offset 2100

cohort.study_design longitudinal
Stool samples were collected during the treatment every week

Section Patients, treatment regimes, and sample collection, offset 2450

cohort.total_participants 11 computed
Six adult patients with active disease... Fecal microbiota and fecal microbiota filtrate were prepared from healthy donors D1–D5

Section Patients, treatment regimes, and sample collection, offset 1800

cohort.treatment_exposure_documented True
long-term, multi-donor, oral-capsule based FMFT (12 weeks) followed by FMT (12 weeks)

Section Patients, treatment regimes, and sample collection, offset 1300

cohort.treatment_response_metadata_available True
Efficacy of FMFT/FMT was measured by clinical response... and clinical remission

Section Patients, treatment regimes, and sample collection, offset 3000

cohort.ulcerative_colitis_participants 6
Six adult patients with active disease and failure of response to conventional UC therapy were enrolled

Section Patients, treatment regimes, and sample collection, offset 1800

Data_Assets

FieldValueEvidence
data_assets.feature_or_otu_table True
The data matrices comprising 667 species level taxa were used

Section Bioinformatic and statistical analysis, offset 7600

data_assets.open_access True from source
"license": "cc by"

Section publication metadata, offset —

data_assets.pipeline_or_tool_versions True
The fastQ files were analyzed with the dada2 package version 1.21.0 in R

Section Bioinformatic and statistical analysis, offset 7350

data_assets.raw_reads True
includes datasets of raw fastq Illumina reads

Section study.description, offset —

data_assets.taxonomic_table True
Relative abundances of sequence types, species and genera were used for downstream analyses (Supplementary Table S3)

Section Bioinformatic and statistical analysis, offset 7200

Specimens

FieldValueEvidence
specimens.body_site stool
Stool samples were collected during the treatment every week

Section Patients, treatment regimes, and sample collection, offset 2300

specimens.inflamed_status_available True
Six adult patients with active disease

Section Patients, treatment regimes, and sample collection, offset 1800

specimens.longitudinal_sampling True
Stool samples were collected during the treatment every week

Section Patients, treatment regimes, and sample collection, offset 2300

specimens.number_of_samples 134 from source
ENA sample_count=134

Section ENA study report, offset —

specimens.participant_to_sample_mapping_available True
Six chronic UC patients P1–P6... healthy donors D1–D5

Section Patients, treatment regimes, and sample collection, offset 2050

specimens.sample_type stool
Stool samples were collected during the treatment every week

Section Patients, treatment regimes, and sample collection, offset 2300