Home › Studies › PRJNA1049662
PRJNA1049662 SRP550399

Gut metagenomics in rectal cancer patients, China, case-control

metagenomic shotgun sequencing of baseline colorectal cancer patient

32 baseline fecal samples from colorectal cancer patients in China undergoing neoadjuvant chemoradiotherapy with immunotherapy, comparing those with versus without treatment-related adverse events in a case-control design. machine-written summary

32 samples · 32 runs · CN · Age unknown · 2025 · 6.21 Gbp / sample

One study deposited as 2 BioProjects (76 catalog samples together): PRJNA1049662 · PRJNA1054290 · show together

Sources
✓Sequence archive 64○Abstract / description✓Full text 96○Supplementary tables–External resources–User contribution–Human verified

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

what each source gave
✓ Sequence archive64 sample values (collection date, country)
○ Abstract / descriptionread; no usable statement
✓ Full text96 sample values (health condition, health condition detail, subject id) · PMC11622589
○ Supplementary tablesfiles read; no table could be matched to the samples
– External resourcesnot covered by the external resources we ingest
– User contributionnothing uploaded yet
– Human verifiednot yet checked by a person · I checked this project — verify it
Samples at a glance
1 country
Age
unknown32
Condition
colorectal_cancer32
Country
CN32
Body site
primary32
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 %)all projects, 0.3–1 Gbp: 47,044 samples (8 %)all projects, 1–3 Gbp: 124,983 samples (22 %)all projects, 3–10 Gbp: 253,728 samples (44 %)this project, 3–10 Gbp: 32 samplesall projects, 10–30 Gbp: 72,533 samples (13 %)all 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 6.21 Gbp per sample0130Gbp
Community composition
Bifidobacterium 10.2%Prevotella 6.7%Phocaeicola 6.2%Blautia_A 5.8%Bacteroides 4.7%Gemmiger 4.5%Mediterraneibacter 3.5%Ruminococcoides 3.4%Roseburia 3.4%Collinsella 2.9%Streptococcus 2.4%Fimenecus 2.1%not assigned to a genus 3.8%other genera 40.3%

Genera, mean relative abundance over 32 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%
country32 100%32
health_condition32 100%32
subject_id32 100%32
collection_date32 100%32
health_condition_detail32 100%32
Papers (1)
  • Unraveling the role of gut microbiome in predicting adverse events in neoadjuvant therapy for rectal cancer. 2024 PMID 39623529 PMC11622589 own_data
Details
Archive description

In order to distinguish adverse event patient from non-adverse event patient.

How this project entered the registry

Classified as human gut / stool shotgun DNA metagenome of age unknown by opus_adjudicated with confidence 0.55. Assay shotgun_dna.

  • host study.title · “baseline colorectal cancer patient”
  • body site sample.attr.isolation_source · “stool (n=32/32)”
Evidence examples (one per field × route)
samplefieldvaluerouteconf.sourcequote
SAMN38704994collection_date2022-05-01R10.90biosample.attribute:collection_date2022-05-01
SAMN38704994countryCNR10.90sample.attr.geo_loc_nameChina
SAMN38704994health_conditioncolorectal_cancerR30.70paper.fulltext.methodslocally advanced rectal patients aged ≥18 years
SAMN38704994health_condition_detailpMMR/MSS locally advanced rectal cancer patientsR30.70paper.fulltext.methodslocally advanced rectal patients aged ≥18 years
SAMN38704994subject_idSAMN38704994R30.70design.one_sample_per_subject:fulltextwe collected samples of 32 patients with locally advanced rectal cancer (LARC) for metagenomic sequencing
Sequencing

32 runs over 32 samples · mean 6.23 Gbp per run (median 6.21 Gbp, total 199.24 Gbp; 32 runs with a base count) · layout PAIRED 32 · platform ILLUMINA 32 · models Illumina NovaSeq 6000 (32) · 100% of runs with a Sandpiper profile · first public 2025-04-27

Authors (11)

Ma J first · Sun S · Cheng X · Meng C · Zhao H · Fu W · Gao Y · Ma L · Yang Z · Yao H · Su J last

Downloads

PRJNA1049662.csv.gz (1.7 KB) · parquet (70.6 KB) — all 32 samples, every field with route and confidence · PRJNA1049662_determinations.csv.gz (1.6 KB) — 160 evidence rows

Samples (32 · every field this project has values for · hover a cell for its source)
Loading the sample table…