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PRJNA784939 SRP448820

Fecal metagenomes in colorectal adenomas, TA vs SSA

Distinct fecal metagenomic signatures associated with pre-malignant colorectal adenomas

971 stool samples from participants undergoing colonoscopy, profiled by shotgun metagenomics to study microbial signatures associated with premalignant tubular adenomas and sessile serrated adenomas, paired with diet and medication history; cross-sectional design. machine-written summary

971 samples · 971 runs · Age unknown · 2023 · 3.13 Gbp / sample

Sources
○Sequence archive✓Abstract / description 1,942✓Full text 1,942✓Supplementary tables 971–External resources–User contribution–Human verified

Checked this project's papers and archive records yourself? Mark it human-verified.

what each source gave
○ Sequence archiverecords read; no usable sample values
✓ Abstract / description1,942 sample values (health condition detail, subject id)
✓ Full text1,942 sample values (collection date, location region) · PMC10477964, PMC11342677, PMC12121241
✓ Supplementary tables971 sample values (sex)
– External resourcesnot covered by the external resources we ingest
– User contributionnothing uploaded yet · share metadata
– Human verifiednot yet checked by a person · I checked this project — verify it
Samples at a glance
Age
unknown971
Sex
female487
male484
Body site
primary971
Sequencing depth per sample · this project all projects
all projects, 0–0.03 Gbp: 25,080 samples (4 %)all projects, 0.03–0.1 Gbp: 17,066 samples (3 %)all projects, 0.1–0.3 Gbp: 29,179 samples (5 %)this project, 0.1–0.3 Gbp: 1 samplesall projects, 0.3–1 Gbp: 47,044 samples (8 %)this project, 0.3–1 Gbp: 27 samplesall projects, 1–3 Gbp: 124,983 samples (22 %)this project, 1–3 Gbp: 433 samplesall projects, 3–10 Gbp: 253,728 samples (44 %)this project, 3–10 Gbp: 503 samplesall projects, 10–30 Gbp: 72,533 samples (13 %)this project, 10–30 Gbp: 7 samplesall projects, 30–100 Gbp: 3,024 samples (1 %)all projects, 100–300 Gbp: 106 samples (0 %)all projects, ≥ 300 Gbp: 9 samples (0 %)project median 3.13 Gbp per sample0130Gbp
Community composition
Bacteroides 9.1%Roseburia 7.0%Phocaeicola 6.2%Blautia_A 5.3%Faecalibacterium 4.9%Alistipes 4.8%Prevotella 3.9%Ruminococcoides 1.7%Gemmiger 1.6%Fusicatenibacter 1.6%Akkermansia 1.5%Mediterraneibacter 1.5%not assigned to a genus 8.2%other genera 42.6%

Genera, mean relative abundance over 881 profiled gut samples of this project (Sandpiper SingleM profiles, GTDB R232; low-depth and non-metagenome profiles left out).

Field coverage
fieldsamplescoverageR1R2R3R4
age_category0 0%
country0 0%
health_condition0 0%
subject_id971 100%971
collection_date971 100%971
detailed_location971 100%
health_condition_detail971 100%971
location_region971 100%971
sex971 100%971
Papers (3)
Details
Archive description

Colorectal cancers arise from pre-malignant lesions, which are either tubular adenomas (TAs) or sessile serrated adenomas (SSAs). Although the molecular genetics underlying these lesions are distinct, it is unknown whether they are also associated with distinct gut microbiomes. To study the microbiome associated with pre-malignant colon lesions, we profiled stool samples from 708 participants undergoing routine colonoscopy using shotgun sequencing and paired these data with curated dietary and medication history.

How this project entered the registry

Classified as human gut / stool shotgun DNA metagenome of age unknown by opus_adjudicated with confidence 0.75. Assay shotgun_dna.

  • host run.host_tax_id · “9606”
  • host study.description · “708 participants undergoing routine colonoscopy”
  • body site study.description · “we profiled stool samples”
Evidence examples (one per field × route)
samplefieldvaluerouteconf.sourcequote
SAMN36402227collection_date2018/2021R30.70paper.fulltext.methodsstool sample collected prior to the screening colonoscopy from 2018 to 2021
SAMN36402227health_condition_detailmixed_case_control: tubular adenomas (TA), sessile serrated adenomas (SSA), and healthy controlsR40.40paper.abstracttubular adenomas (TAs) and sessile serrated adenomas (SSAs)
SAMN36402227location_regionMassachusettsR30.70paper.fulltext.methodsMassachusetts General Hospital (MGH)
SAMN36402227sexmaleR20.85paper.supp.12967_2025_6404_MOESM1_ESM.zip::Table S1.xlsx[Table S1!Sex]male
SAMN36402227subject_idSAMN36402227R40.60design.one_sample_per_subject:abstractwe profiled stool samples from 971 participants undergoing colonoscopy
Sequencing

971 runs over 971 samples · mean 3.57 Gbp per run (median 3.13 Gbp, total 3,467.55 Gbp; 971 runs with a base count) · layout PAIRED 971 · platform ILLUMINA 971 · models Illumina HiSeq 2500 (971) · 91% of runs with a Sandpiper profile · first public 2023-07-13

Authors (28)

Lee JWJ first · Plichta DR · Asher S · Delsignore M · Jeong T · McGoldrick J · Staller K · Khalili H · Xavier RJ · Chung DC last · Hua X first · Nakrour N · Zhang P first · Tuo X · Jiang J · Zhang Y · Zhao J · Deng C · Zhao G · Cheng Y · Song L · Yang Y · Guo R · Zhang H · Zhao H · Ma S · Li L · Shi H last

Help complete this project

3 of the 4 core fields are below 50% coverage: age_category, country, health_condition. Share metadata

Downloads

PRJNA784939.csv.gz (24.6 KB) · parquet (110.7 KB) — all 971 samples, every field with route and confidence · PRJNA784939_determinations.csv.gz (24.2 KB) — 4,855 evidence rows

Samples (971 · every field this project has values for · hover a cell for its source)
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